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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) | Total | Preferred Stock | Common Stock | Capital in Excess of Par | Accumulated Other Comprehensive Loss | Accumulated Deficit | Treasury Stock
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2022 |  |  | 12,171,512 |  |  |  | 1,471,406
Beginning balance at Dec. 31, 2022 | $ 36,169,432 | $ 0 | $ 121,715 | $ 74,519,590 | $ (15,958,428) | $ (16,945,964) | $ (5,567,481)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock-based compensation | 636,178 |  |  | 636,178 |  |  |
Net income (loss) | (9,114,298) |  |  |  |  | (9,114,298) |
Change in unrealized losses on available-for-sale securities, net of tax | (1,161,051) |  |  |  | (1,161,051) |  |
Vesting of restricted stock awards (in shares) |  |  | 56,977 |  |  |  |
Vesting of restricted stock awards | 0 |  | $ 569 | (569) |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes (in shares) |  |  | (927) |  |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes | $ (1,400) |  | $ (9) | (1,391) |  |  |
Exercise of stock options (in shares) | 0 |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 |  |  | 12,227,562 |  |  |  | 1,471,406
Ending balance at Sep. 30, 2023 | $ 26,528,861 | 0 | $ 122,275 | 75,153,808 | (17,119,479) | (26,060,262) | $ (5,567,481)
Beginning balance (in shares) at Jun. 30, 2023 |  |  | 12,227,562 |  |  |  | 1,471,406
Beginning balance at Jun. 30, 2023 | 32,085,216 | 0 | $ 122,275 | 74,946,685 | (14,893,572) | (22,522,691) | $ (5,567,481)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock-based compensation | 207,123 |  |  | 207,123 |  |  |
Net income (loss) | (3,537,571) |  |  |  |  | (3,537,571) |
Change in unrealized losses on available-for-sale securities, net of tax | $ (2,225,907) |  |  |  | (2,225,907) |  |
Exercise of stock options (in shares) | 0 |  |  |  |  |  |
Ending balance (in shares) at Sep. 30, 2023 |  |  | 12,227,562 |  |  |  | 1,471,406
Ending balance at Sep. 30, 2023 | $ 26,528,861 | 0 | $ 122,275 | 75,153,808 | (17,119,479) | (26,060,262) | $ (5,567,481)
Beginning balance (in shares) at Dec. 31, 2023 |  |  | 12,248,313 |  |  |  | 1,471,406
Beginning balance at Dec. 31, 2023 | 34,504,139 | 0 | $ 122,483 | 75,338,010 | (12,274,563) | (23,114,310) | $ (5,567,481)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock-based compensation | 906,375 |  |  | 906,375 |  |  |
Net income (loss) | 12,919,761 |  |  |  |  | 12,919,761 |
Vesting of restricted stock awards (in shares) |  |  | 446,044 |  |  |  |
Vesting of restricted stock awards | 0 |  | $ 4,460 | (4,460) |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes (in shares) |  |  | (109,633) |  |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes | $ (961,091) |  | $ (1,096) | (959,995) |  |  |
Exercise of stock options (in shares) | 12,731 |  | 37,959 |  |  |  | 35,248
Exercise of stock options | $ 0 |  | $ 380 | (28) |  |  | $ (352)
Exercise of warrants (in shares) |  |  | 60,557 |  |  |  |
Exercise of warrants | 0 |  | $ 606 | (606) |  |  |
Issuance of common stock, net of offering (in shares) |  |  | 1,135,710 |  |  |  |
Issuance of common stock, net of offering costs | 9,066,098 |  | $ 11,357 | 9,054,741 |  |  |
Change in unrealized gains on available-for-sale securities, net of tax | 3,234,450 |  |  |  | 3,234,450 |  |
Ending balance (in shares) at Sep. 30, 2024 |  |  | 13,818,950 |  |  |  | 1,506,654
Ending balance at Sep. 30, 2024 | 59,669,732 | 0 | $ 138,190 | 84,334,037 | (9,040,113) | (10,194,549) | $ (5,567,833)
Beginning balance (in shares) at Jun. 30, 2024 |  |  | 12,536,129 |  |  |  | 1,471,406
Beginning balance at Jun. 30, 2024 | 40,802,774 | 0 | $ 125,361 | 76,042,147 | (12,624,559) | (17,172,694) | $ (5,567,481)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Stock-based compensation | 359,170 |  |  | 359,170 |  |  |
Net income (loss) | 6,978,145 |  |  |  |  | 6,978,145 |
Vesting of restricted stock awards (in shares) |  |  | 211,391 |  |  |  |
Vesting of restricted stock awards | 0 |  | $ 2,114 | (2,114) |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes (in shares) |  |  | (106,687) |  |  |  |
Shares deducted from restricted stock awards for payment of withholding taxes | $ (952,711) |  | $ (1,067) | (951,644) |  |  |
Exercise of stock options (in shares) | 12,731 |  | 37,959 |  |  |  | 35,248
Exercise of stock options | $ 0 |  | $ 380 | (28) |  |  | $ (352)
Exercise of warrants (in shares) |  |  | 60,557 |  |  |  |
Exercise of warrants | 0 |  | $ 606 | (606) |  |  |
Issuance of common stock, net of offering (in shares) |  |  | 1,079,601 |  |  |  |
Issuance of common stock, net of offering costs | 8,897,908 |  | $ 10,796 | 8,887,112 |  |  |
Change in unrealized gains on available-for-sale securities, net of tax | 3,584,446 |  |  |  | 3,584,446 |  |
Ending balance (in shares) at Sep. 30, 2024 |  |  | 13,818,950 |  |  |  | 1,506,654
Ending balance at Sep. 30, 2024 | $ 59,669,732 | $ 0 | $ 138,190 | $ 84,334,037 | $ (9,040,113) | $ (10,194,549) | $ (5,567,833)

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