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v3.23.1

Consolidated Statements of Changes in Stockholders' Equity - USD ($) | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2020 |  | 1,280,207 |  |  |  |
Balance at Dec. 31, 2020 |  | $ 1,280 | $ 130,722,286 | $ (105,909,384) |  | $ 24,814,182
Conversion of Series C preferred stock to common stock |  |  |  |  |  | 0
Unrealized loss on marketable securities |  |  |  |  |  | 0
Net loss |  | 0 | 0 | (24,095,727) |  | (24,095,727)
Vesting of restricted stock units |  | $ 207 | 0 | 0 |  | 0
Sale of common stock (in shares) |  | 673,171 |  |  |  |
Sale of common stock |  | $ 673 | 31,093,629 | 0 |  | 31,094,302
Issuance of common stock upon exercise of warrants (in shares) |  | 84,600 |  |  |  |
Issuance of common stock upon exercise of warrants |  | $ 85 | 2,201,365 | 0 |  | 2,201,450
Stock-based compensation expense |  | $ 0 | 897,260 | 0 |  | 897,260
Balance (in shares) at Dec. 31, 2021 | 0 | 2,038,185 |  |  |  |
Balance at Dec. 31, 2021 | $ 0 | $ 2,038 | 164,914,540 | (130,005,111) | $ 0 | 34,911,467
Sale of Series C preferred stock to related parties (in shares) | 10,000 | 0 |  |  |  |
Sale of Series C preferred stock to related parties | $ 5,000 | $ 0 | 0 | 0 | 0 | 5,000
Conversion of Series C preferred stock to common stock (in shares) | (10,000) | (200) |  |  |  |
Conversion of Series C preferred stock to common stock | $ (5,000) |  |  |  |  | (5,000)
Conversion of Series C preferred stock to common stock (in shares) | 10,000 | 200 |  |  |  |
Stock-based compensation expense and vesting of restricted stock units (in shares) | 0 | 1,172 |  |  |  |
Stock-based compensation expense and vesting of restricted stock units | $ 0 | $ 2 | 928,050 | 0 | 0 | 928,052
Unrealized loss on marketable securities | 0 | 0 | 0 | 0 | (35,375) | (35,375)
Net loss | $ 0 | $ 0 | 0 | (15,591,428) | 0 | (15,591,428)
Balance (in shares) at Dec. 31, 2022 | 0 | 2,039,557 |  |  |  |
Balance at Dec. 31, 2022 | $ 0 | $ 2,040 | 165,847,590 | $ (145,596,539) | $ (35,375) | $ 20,217,716
Conversion of Series C preferred stock to common stock |  |  | $ 5,000 |  |  |

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