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NV 04-3562325 4960 Peachtree Industrial Blvd., Suite 240 Norcross 30071 678 620-3186 Common Stock GALT NASDAQ Yes Yes Non-accelerated Filer true false false 58094788 20760000 27142000 2034000 2323000 22794000 29465000 103000 135000 22897000 29600000 382000 1292000 4281000 4042000 0 65000 4663000 5399000 0 8000 4663000 5407000 1000 1000 176 176 176 176 8467000 1760000 1723000 1723000 0.01 0.01 20000000 20000000 20000000 20000000 1742500 1742500 1302500 1302500 1302500 1302500 1302500 527000 527000 0.001 0.001 100000000 100000000 57186655 57186655 57077055 57077055 56000 56000 262264000 261883000 -246336000 -239996000 16511000 22470000 22897000 29600000 4899000 2144000 1418000 1440000 6317000 3584000 -6317000 -3584000 1000 50000 22000 22000 -21000 28000 -6338000 -3556000 2000 -6000 -6340000 -3550000 -0.11 -0.06 57132000 56956000 -6338000 -3556000 254000 430000 10000 9000 22000 22000 -289000 -173000 -619000 -1449000 -6382000 -4371000 0 219000 0 219000 -6382000 -4152000 27142000 47480000 20760000 43328000 67000 60000 60000 0 176 1723000 176 1723000 176 1723000 176 1723000 1327500 537000 56894642 56000 259673000 -216394000 43872000 13275 -26000 -14000 -40000 17600 -34000 9000 -25000 84624 219000 219000 19068 430000 430000 -3556000 -3556000 1327500 537000 57029209 56000 260382000 -219945000 41030000 1302500 527000 57077055 56000 261883000 -239996000 22470000 13025 -28000 -10000 -38000 17600 -39000 12000 -27000 46282 32693000 314000 314000 -6338000 -6338000 1302500 527000 57186655 56000 262264000 -246336000 16511000 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">1. Basis of Presentation </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Galectin Therapeutics Inc. and subsidiaries (the “Company”) is a clinical stage biopharmaceutical company that is applying its leadership in galectin science and drug development to create new therapies for fibrotic disease and cancer. These candidates are based on the Company’s targeting of galectin proteins which are key mediators of biologic and pathologic function. These compounds also may have application for drugs to treat other diseases and chronic health conditions. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The unaudited condensed consolidated financial statements as reported in this Quarterly Report on Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-Q</div> reflect all adjustments which are, in the opinion of management, necessary to present fairly the financial position of the Company as of March 31, 2021 and the results of its operations for the three months ended March 31, 2021 and 2020 and its cash flows for the three months ended March 31, 2021 and 2020. All adjustments made to the interim financial statements include all those of a normal and recurring nature. Amounts presented in the condensed consolidated balance sheet as of December 31, 2020 are derived from the Company’s audited consolidated financial statements as of that date, but do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosure. Subsequent events have been evaluated through the date these financial statements are available to be issued. The results for interim periods are not necessarily indicative of results that may be expected for any other interim period or for the full year. The unaudited condensed consolidated financial statements of the Company should be read in conjunction with its Annual Report on Form <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">10-K</div> for the year ended December 31, 2020. </div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The Company has operated at a loss since its inception and has had no revenues. The Company anticipates that losses will continue for the foreseeable future. At March 31, 2021, the Company had $20,760,000 of unrestricted cash and cash equivalents available to fund future operations. On April 16, 2021, the Company received $10,000,000 in proceeds from a convertible promissory note (see Note 12). The Company believes there is sufficient cash, including availability of the line of credit (see Note 3), to fund currently planned operations at least through September 30, 2022. We will require more cash to fund our operations after September 30, 2022 and believe we will be able to obtain additional financing. The currently planned operations include costs related to our adaptively designed NAVIGATE Phase 2b/3 clinical trial. Currently, we expect to require an additional approximately <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">$35-$40 million</div> to cover costs of the trial to reach the planned interim analysis estimated to occur in the second half of 2023 along with drug manufacturing and other scientific support activities and general and administrative costs. However, there can be no assurance that we will be successful in obtaining such new financing or, if available, that such financing will be on terms favorable to us. If we are unsuccessful in raising additional capital to fund operations before September 30, 2022, we may be required to cease operations. Accordingly, based on the forecasts and estimates underlying our current operating plan, the financial statements do not currently include any adjustments that might be necessary if we are unable to continue as a going concern. </div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The Company was founded in July 2000, was incorporated in the State of Nevada in January 2001 under the name <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">“Pro-Pharmaceuticals,</div> Inc.,” and changed its name to “Galectin Therapeutics Inc.” on May 26, 2011.</div> 20760000 10000000 35000000 40000000 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">2. Accrued Expenses and Other </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued expenses consist of the following: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 76%;"/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom: 1pt solid rgb(0, 0, 0); text-indent: 0px;;text-align:center;">March 31,<br/> <div style="display:inline;">202<div style="display:inline;">1</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">December 31,<br/> 2020</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom;">  </td> <td colspan="6" style="vertical-align: bottom;;text-align:center;">(in thousands)</td> <td style="vertical-align: bottom;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Legal and accounting fees</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">122</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">122</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued compensation</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">291</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">789</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Lease liability</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">42</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">44</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued research and development costs and other</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,826</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,087</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4,281</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4,042</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Research and development expenses, including personnel costs, allocated facility costs, lab supplies, outside services, contract laboratory costs related to manufacturing drug product, clinical trials and preclinical studies are charged to research and development expense as incurred. The Company accounts for nonrefundable advance payments for goods and services that will be used in future research and development activities as expense when the service has been performed or when the goods have been received. Our current NAVIGATE clinical trial is being supported by third-party contract research organizations, or CROs, and other vendors. We accrue expenses for clinical trial activities performed by CROs based upon the estimated amount of work completed on each trial. For </div></div> <div style="font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">clinical trial expenses and related expenses associated with the conduct of clinical trials, the significant factors used in estimating accruals include the number of patients enrolled, the number of active clinical sites, and the duration for which the patients have been enrolled in the trial. We monitor patient enrollment levels and related activities to the extent possible through internal reviews, review of contractual terms and correspondence with CROs. We base our estimates on the best information available at the time. We monitor patient enrollment levels and related activities to the extent possible through discussions with CRO personnel and based our estimates of clinical trial costs on the best information available at the time. However, additional information may become available to us which will allow us to make a more accurate estimate in future periods. In that event, we may be required to record adjustments to research and development expenses in future periods when the actual level of activity becomes more certain. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued expenses consist of the following: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 76%;"/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom: 1pt solid rgb(0, 0, 0); text-indent: 0px;;text-align:center;">March 31,<br/> <div style="display:inline;">202<div style="display:inline;">1</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">December 31,<br/> 2020</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom;">  </td> <td colspan="6" style="vertical-align: bottom;;text-align:center;">(in thousands)</td> <td style="vertical-align: bottom;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Legal and accounting fees</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">122</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">122</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued compensation</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">291</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">789</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Lease liability</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">42</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">44</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Accrued research and development costs and other</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,826</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,087</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4,281</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4,042</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> 122000 122000 291000 789000 42000 44000 3826000 3087000 4281000 4042000 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">3. Line of Credit </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The Company has a $10 million Line of Credit arrangement with Richard E. Uihlein, a director and shareholder pursuant to an agreement established in December, 2017 and amended in December, 2018 and January, 2019. Under the arrangement the Company may borrow up to $10 million from Mr. Uihlein on an unsecured basis and with any borrowings bearing interest at the Applicable Federal Rate for short terms loans published by the Internal Revenue Service (0.14% in January 2021). Borrowings may be made through December 31, 2021 with repayment due on December 31, 2022. In connection with the Line of Credit agreement, the Company issued to Mr. Uihlein warrants to purchase 1 million shares of the Company’s common stock for $5 per share. Half of the warrants vested at closing of the Line of Credit and the other half vest ratably with borrowings under the agreement. The 500,000 warrants that vested at closing were exercised in May 2019 for cash proceeds to the Company of $2.5 million. As of the date of this Quarterly Report, there have been no<div style="letter-spacing: 0px; top: 0px;;display:inline;"> </div>borrowings under the Line of Credit. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The fair value of the 500,000 warrants vested at closing in December 2017 was $696,000 at the date of issuance based on the following assumptions: an expected life of 7 years, volatility of 98%, risk free interest rate of 2.05% and zero dividends. The fair value of the vested warrants was recorded in other current assets and other assets <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">(non-current)</div> as a deferred financing cost and were to be amortized on a straight-line basis from December 19, 2017 through December 31, 2019. The remaining unamortized balance of the deferred financing cost on January 11, 2019 was adjusted to be recorded as expense on a straight-line basis through December 31, 2022. Amortization for the three months ended March 31, 2021 and 2020 of $22,000 and $22,000, respectively, was recorded as interest expense. The fair value of warrants that vest in the future based on borrowings will be computed when those borrowings occur and amortized over the remaining period through December 31, 2022 reflecting the second extension. </div> 10000000 10000000 0.0014 1000000 5 2500000 0 500000 696000 P7Y 0.98 0.0205 0 22000 22000 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">4. Stock-Based Compensation </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Following is the stock-based compensation expense related to common stock options, restricted common stock, common stock warrants and deferred stock units: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 84%;"/> <td style="width: 5%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 5%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="6" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">Three Months Ended<br/> March 31,</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">2021</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">2020</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Research and development</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">67</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">157</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">General and administrative</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">187</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">273</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total stock-based compensation expense</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">254</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">430</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The following table summarizes the stock option activity in the Company’s equity incentive plans, including <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">non-plan</div> grants to Company executives, from December 31, 2020 through March 31, 2021: </div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 71%;"/> <td style="width: 8%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Shares</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Weighted Average<br/> Exercise Price</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, December 31, 2020</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,987,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.29</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Granted</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">1,865,000</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2.11</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Exercised</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">(70,000</td> <td style="vertical-align: bottom; white-space: nowrap;">) </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0.87</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Options forfeited/cancelled</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">(20,000</td> <td style="vertical-align: bottom; white-space: nowrap;">) </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2.86</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, March 31, 2021</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">5,762,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3.63</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> </table> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">As of March 31, 2021, there was $3,781,000 of unrecognized compensation related to 2,415,834 unvested options, which is expected to be recognized over a weighted–average period of approximately 2.3 years. The weighted-average grant date fair value for options granted during the three months ended March 31, 2021 was $1.56. The Company granted 1,865,000 stock options during the three months ended March 31, 2021. During the three months ended March 31, 2021, 70,000 stock options were exercised on a net basis resulting in the issuance of 46,282 shares of common stock. </div></div><div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The fair value of all other options granted is determined using the Black-Scholes option-pricing model. The following weighted average assumptions were used: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 73%;"/> <td style="width: 8%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Three<br/> Months Ended<br/> March 31,</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Three<br/> Months Ended<br/> March 31,</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">2021</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">2020</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Risk-free interest rate</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0.54</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">1.55</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected life of the options</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">6 years</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">6 years</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected volatility of the underlying stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">91</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">100</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected dividend rate</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> </table> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">In January 2020, two directors elected to take restricted stock grants in lieu of cash retainers for 2020. A total of 32,693 shares of restricted stock valued at approximately $93,500 is being amortized to expense on a straight-line basis until January 9, 2021 when the stock vests in full. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">In March 2021, one director elected to take a restricted stock grant in lieu of cash retainers for 2021. A total of 16,588 shares of restricted stock valued at approximately $35,000 is being amortized to expense on a straight-line basis until December 31, 2021 when the stock vests in full. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">In September 2020, the Company entered into an employment agreement with its new Chief Executive Officer whereby 20% of his base salary and performance bonuses will be paid in cash, and 80% will be paid in the form of deferred stock units (“<div style="text-decoration: underline; letter-spacing: 0px; top: 0px;;display:inline;">DSUs</div>”) in accordance with the terms and subject to the provisions set forth in the DSU Agreement. DSUs credited to Mr. Lewis as of any date shall be fully vested and nonforfeitable at all times. The Company shall issue the shares underlying the outstanding whole number of DSUs credited to Mr. Lewis as follows: twenty five percent shall be issued on March 1, 2023, twenty five percent shall be issued on September 1, 2023 and fifty percent shall be issued on March 1, 2024. For the three months ended March 31, 2021, approximately $100,000 of his compensation was recorded as stock compensation expense representing 44,593 shares of common stock to be issued under the DSU agreement with a weighted average grant date fair value of $2.24 per share. Also, Mr. Lewis’ bonus for the year ended December 31, 2020 of $60,000 (which was included in accrued compensation at December 31, 2020) was approved in March 2021 and represents 27,027 shares of common stock to be issued under the DSU agreement with a grant date fair value of $2.22 per share. The $60,000 was reclassified from accrued compensation to additional paid in capital in March 2021<div style="letter-spacing: 0px; top: 0px;;display:inline;">. </div>There is no unrecognized compensation expense related to the DSUs. </div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Following is the stock-based compensation expense related to common stock options, restricted common stock, common stock warrants and deferred stock units: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 84%;"/> <td style="width: 5%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 5%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="6" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">Three Months Ended<br/> March 31,</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">2021</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;"><div style="letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-weight:bold;display:inline;">2020</div></div></td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Research and development</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">67</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">157</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">General and administrative</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">187</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">273</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total stock-based compensation expense</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">254</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">430</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> 67000 157000 187000 273000 254000 430000 <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The following table summarizes the stock option activity in the Company’s equity incentive plans, including <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">non-plan</div> grants to Company executives, from December 31, 2020 through March 31, 2021: </div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 71%;"/> <td style="width: 8%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Shares</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Weighted Average<br/> Exercise Price</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, December 31, 2020</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,987,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.29</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Granted</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">1,865,000</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2.11</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Exercised</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">(70,000</td> <td style="vertical-align: bottom; white-space: nowrap;">) </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0.87</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Options forfeited/cancelled</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">(20,000</td> <td style="vertical-align: bottom; white-space: nowrap;">) </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2.86</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, March 31, 2021</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">5,762,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3.63</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0px; margin-bottom: 0px; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> </table> 3987575 4.29 1865000 2.11 70000 0.87 20000 2.86 5762575 3.63 3781000 2415834 P2Y3M18D 1.56 1865000 70000 46282 <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The fair value of all other options granted is determined using the Black-Scholes option-pricing model. The following weighted average assumptions were used: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 73%;"/> <td style="width: 8%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Three<br/> Months Ended<br/> March 31,</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Three<br/> Months Ended<br/> March 31,</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">2021</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">2020</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Risk-free interest rate</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0.54</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">1.55</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected life of the options</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">6 years</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">6 years</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected volatility of the underlying stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">91</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">100</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Expected dividend rate</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> <td style="vertical-align: bottom;"> </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">0</td> <td style="vertical-align: bottom; white-space: nowrap;">% </td> </tr> </table> 0.0054 0.0155 P6Y P6Y 0.91 1 0 0 32693 93500 16588 35000 0.20 0.80 The Company shall issue the shares underlying the outstanding whole number of DSUs credited to Mr. Lewis as follows: twenty five percent shall be issued on March 1, 2023, twenty five percent shall be issued on September 1, 2023 and fifty percent shall be issued on March 1, 2024. 100000 44593 2.24 60000 27027 2.22 60000 0 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">5. Common Stock Warrants </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The following table summarizes the common stock warrant activity from December 31, 2020 through March 31, 2021: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 71%;"/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Shares</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Weighted Average<br/> Exercise Price</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, December 31, 2020</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.22</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Granted</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Exercised</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Forfeited/cancelled</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, March 31, 2021</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.22</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> </table> <div style="clear: both; max-height: 0px; background: none;"/> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The weighted average expiration of the warrants outstanding as of March 31, 2021 is 3.2 years. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The following table summarizes the common stock warrant activity from December 31, 2020 through March 31, 2021: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 71%;"/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 7%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Shares</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">Weighted Average<br/> Exercise Price</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, December 31, 2020</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.22</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Granted</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Exercised</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 3em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Forfeited/cancelled</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">—  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Outstanding, March 31, 2021</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">4.22</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> </tr> </table> <div style="clear: both; max-height: 0px; background: none;"/> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The weighted average expiration of the warrants outstanding as of March 31, 2021 is 3.2 years. </div></div> 12538204 4.22 12538204 4.22 P3Y2M12D <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">6. Fair Value of Financial Instruments </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The Company has certain financial assets and liabilities recorded at fair value. Fair values determined by Level 1 inputs utilize observable data such as quoted prices in active markets. Fair values determined by Level 2 inputs utilize data points other than quoted prices in active markets that are observable either directly or indirectly. Fair values determined by Level 3 inputs utilize unobservable data points in which there is little or no market data, which require the reporting entity to develop its own assumptions. The carrying amounts reflected in the consolidated balance sheets for cash equivalents, accounts payable and accrued expenses approximate their carrying value due to their short-term nature. There were no level 2 or level 3 assets or liabilities at March 31, 2021 or December 31, 2020. </div></div> <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">7. Loss Per Share </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;">Basic net loss per common share is computed by dividing the net loss available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net loss per common share is computed by dividing the net loss available to common stockholders by the weighted average number of common shares and other potential common shares then outstanding. Potential common shares consist of common shares issuable upon the assumed exercise of <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;"><div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">in-the-money</div></div> stock options and warrants and potential common shares related to the conversion of the preferred stock. The computation of diluted net loss per share does not assume the issuance of common shares that have an anti-dilutive effect on net loss per share. </div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Dilutive shares which could exist pursuant to the exercise of outstanding stock instruments and which were not included in the calculation because their affect would have been anti-dilutive are as follows: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 72%;"/> <td style="width: 3%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 3%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">March 31, 2021<br/> (shares)</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">March 31, 2020<br/> (shares)</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Warrants to purchase shares of common stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Options to purchase shares of common stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">5,762,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,737,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Shares of common stock issuable upon conversion of preferred stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">510,424</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">514,602</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">18,811,203</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">16,790,381</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Dilutive shares which could exist pursuant to the exercise of outstanding stock instruments and which were not included in the calculation because their affect would have been anti-dilutive are as follows: </div></div> <div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 76%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 72%;"/> <td style="width: 3%; vertical-align: bottom;"/> <td/> <td/> <td/> <td style="width: 3%; vertical-align: bottom;"/> <td/> <td/> <td/> </tr> <tr style="font-family: Times New Roman; font-size: 8pt; page-break-inside: avoid;"> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">March 31, 2021<br/> (shares)</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> <td style="vertical-align: bottom; padding-bottom: 1pt;">  </td> <td colspan="2" style="vertical-align: bottom; border-bottom-color: rgb(0, 0, 0); border-bottom-width: 1pt; border-bottom-style: solid;;text-align:center;">March 31, 2020<br/> (shares)</td> <td style="vertical-align: bottom; padding-bottom: 1pt;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Warrants to purchase shares of common stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">12,538,204</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Options to purchase shares of common stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">5,762,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">3,737,575</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"> <div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Shares of common stock issuable upon conversion of preferred stock</div></div> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">510,424</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">514,602</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">18,811,203</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">16,790,381</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> </tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td style="vertical-align: bottom;"> <div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div> </td> <td> </td> </tr> </table> 12538204 12538204 5762575 3737575 510424 514602 18811203 16790381 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">8. Common Stock </div></div></div> <div style="font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt; margin-left: 4%;"><div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;">2020 At Market Issuance of Common Stock </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">On May 11, 2020, the Company entered into an At Market Issuance Sales Agreement (the “2020 At Market Agreement”) with a sales agent under which the Company may issue and sell shares of its common stock having an aggregate offering price of up to $40.0 million from time to time through the sales agent. Sales of the Company’s common stock through the sales agent, if any, will be made by any method that is deemed an “at the market” offering as defined by the U.S. Securities and Exchange Commission. The Company will pay to the sales agent a commission rate equal to 3.0% of the gross proceeds from the sale of any shares of common stock sold through the sales agent under the 2020 At Market Agreement. During the quarter ended March 31, 2021, there were no issuances of shares of common stock under the 2020 At Market Agreement. </div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">For the three months ended March 31, 2021 and 2020, the Company has issued a total of 30,625 and 30,875 shares of common stock, respectively, for dividends on Series A and Series C Preferred Stock. </div></div> 40000000.0 0.030 30625 30875 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">9. Commitments and Contingencies </div></div></div> <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;">Other Legal Proceedings </div></div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The Company records accruals for such contingencies to the extent that the Company concludes that their occurrence is probable and the related damages are estimable. There are no significant pending legal proceedings. </div></div> <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt; margin-left: 2%;"><div style="font-weight:bold;display:inline;"><div style="font-style: normal; letter-spacing: 0px; top: 0px;;display:inline;"><div style="font-style:italic;display:inline;">Clinical Trial and Research Commitments </div></div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The Company has entered into agreements with contractors for research and development activities to further its product candidates. The contracts generally may be canceled at any time by providing thirty days’ notice. </div></div> <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">10. Leases </div></div></div> <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;">The Company has one operating lease for its office space which was amended effective January 1, 2019 for a term of 38 months with no residual value guarantees or material restrictive covenants. The amended lease provided for free rent for the first two months of the lease and continues the security deposit of $6,000. In addition to base rental payments included in the contractual obligations table above, the Company is responsible for our <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">pro-rata</div> share of the operating expenses for the building. Our lease cost for the three-month periods ended March 31, 2021 and 2020 was $11,000 for each period and is included in general and administrative expenses. As of March 31, 2021, the right to use lease asset consisted of $38,000 and is included in other assets. Also, at March 31, 2021, current lease liability of $42,000 is included in accrued expenses. </div><div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Maturity of operating lease as of March 31, 2021 in thousands: </div></div><div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 68%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 93%; font-family: &quot;Times New Roman&quot;;"/> <td style="width: 5%; vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">2021</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">36</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">2022</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">8</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">44</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Less imputed interest</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><span style="-sec-ix-hidden:hidden21250099">Present value of lease liability</span></div></div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">42</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr></table><div style="font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">The discount rate used in calculating <div style="display:inline;">the</div> present value of the lease payments was 11.04%​​​​​​​ </div></div> P38M 6000 11000 11000 38000 42000 <div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Maturity of operating lease as of March 31, 2021 in thousands: </div></div><div style="font-size: 12pt; margin-top: 0pt; margin-bottom: 0pt;"><div style="font-size: 12pt; letter-spacing: 0px; top: 0px;;display:inline;"> </div></div> <table cellpadding="0" cellspacing="0" style="margin: 0px auto; border: 0px currentcolor; width: 68%; font-family: &quot;Times New Roman&quot;; font-size: 10pt; border-collapse: collapse; border-spacing: 0px;"> <tr style="font-size: 0px;"> <td style="width: 93%; font-family: &quot;Times New Roman&quot;;"/> <td style="width: 5%; vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/> <td style="font-family: &quot;Times New Roman&quot;;"/></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">2021</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">36</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">2022</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">8</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Total</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">44</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid;"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">Less imputed interest</div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;"> </td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">2</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 1px solid rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr> <tr style="font-family: Times New Roman; font-size: 10pt; page-break-inside: avoid; background-color: rgb(204, 238, 255);"> <td style="vertical-align: top;"><div style="text-indent: -1em; font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; margin-left: 1em; line-height: normal;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;"><div style="display:inline;"><span style="-sec-ix-hidden:hidden21250099">Present value of lease liability</span></div></div></div></td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom; white-space: nowrap;">$</td> <td style="vertical-align: bottom; white-space: nowrap;;text-align:right;">42</td> <td style="vertical-align: bottom; white-space: nowrap;"> </td></tr> <tr style="font-size: 1px;"> <td style="vertical-align: bottom; font-family: &quot;Times New Roman&quot;;"> </td> <td style="vertical-align: bottom;">  </td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div></td> <td style="vertical-align: bottom;"><div style="margin-top: 0pt; margin-bottom: 0pt; border-top: 3px double rgb(0, 0, 0); line-height: normal;"> </div></td> <td> </td></tr></table> 36000 8000 44000 2000 42000 0.1104 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">11. Galectin Sciences LLC </div></div></div><div style="text-indent: 4%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;">In January 2014, we created Galectin Sciences, LLC (the “LLC” or “Investee”), a collaborative joint venture <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">co-owned</div> by SBH Sciences, Inc. (“SBH”), to research and develop small organic molecule inhibitors of <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">galectin-3</div> for oral administration. The LLC was initially capitalized with a $400,000 cash investment to fund future research and development activities, which was provided by the Company, and specific <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">in-process</div> research and development (“IPR&amp;D”) contributed by SBH. The estimated fair value of the IPR&amp;D contributed by SBH, on the date of contribution, was $400,000. Initially, the Company and SBH each had a 50% equity ownership interest in the LLC, with neither party having control over the LLC. Accordingly, from inception through the fourth quarter of 2014, the Company accounted for its investment in the LLC using the equity method of accounting. Under the equity method of accounting, the Company’s investment was initially recorded at cost with subsequent adjustments to the carrying value to recognize additional investments in or distributions from the Investee, as well as the Company’s share of the Investee’s earnings, losses and/or changes in capital. The estimated fair value of the IPR&amp;D contributed to the LLC was immediately expensed upon contribution as there was no alternative future use available at the point of contribution. The operating agreement provides that if either party does not desire to contribute its equal share of funding required after the initial capitalization, then the other party, providing all of the funding, will have its ownership share increased in proportion to the total amount contributed from inception. In the fourth quarter of 2014, after the LLC had expended the $400,000 in cash, SBH decided not to contribute its share of the funding required. Since then, the Company has contributed a total of $2,456,000, including $57,000 for the three months ended March 31, 2021, for expenses of the LLC. Since the end of 2014, SBH has contributed $158,000 for expenses in the LLC. As of March 31, 2021, the Company’s ownership percentage in the LLC was 83.6%. The Company accounts for the interest in the LLC as a consolidated, less than wholly owned subsidiary. Because the LLC’s equity is immaterial, the value of the <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">non-controlling</div> interest is also deemed to be immaterial. </div> 400000 400000 0.50 400000 2456000 57000 158000 0.836 <div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; margin-top: 18pt; margin-bottom: 0pt;"><div style="font-weight:bold;display:inline;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">12. Subsequent Events </div></div></div><div style="text-indent: 9%; font-family: Times New Roman; font-size: 10pt; margin-top: 6pt; margin-bottom: 0pt;"><div style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; letter-spacing: 0px; top: 0px;;display:inline;">On April 16, 2021, Galectin Therapeutics Inc. (the “Company”) and Richard E. Uihlein, Chairman of our Board of Directors, entered into a debt financing arrangement whereby Mr. Uihlein loaned $10,000,000 to Company. In consideration for the loan, the Company issued a convertible promissory note (the “Note”) in the principal amount of ten million dollars. </div></div><div style="text-indent: 9%; font-family: Times New Roman; font-size: 10pt; margin-top: 12pt; margin-bottom: 0pt;">The Note has a maturity date of April 16, 2025 and is convertible into the Company’s common stock at a conversion price equal to $5.00 per share at the option of the noteholder. The Note bears interest at the rate of two percent (2%) per annum, compounded annually, and accrues additional interest at a rate of two and <div style="white-space: nowrap; letter-spacing: 0px; top: 0px;;display:inline;">one-half</div> percent (2.5%) per quarter (the “Additional Interest”) beginning on the date of issuance of this Note and ending on the maturity date, provided however, that such Additional Interest is payable if and only if the noteholder elects to convert the entire balance of the Note into the Company’s common stock on or prior to maturity. </div> 10000000 2025-04-16 5.00 0.02 0.025 0.025