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Note 13 - Equity - Changes in Stockholders' Equity (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Balances | $ 167,558,549 | $ 124,074,056 | $ 196,858,907 | $ 170,160,042
Net income/(loss) | 1,343,945 | (393,066) | 13,453,901 | (4,186,799)
Payment of common stock tendered for employee stock-based compensation tax obligations | 0 |  | 638,139 | 214,794
Issuance of common stock upon vesting of RSUs | 0 |  | 0 | 0
Cash dividend ($0.60 per share) | 8,466 |  | (43,108,606) | (32,135,118)
Stock-based compensation | 813,774 | 459,823 | 2,876,071 | 1,589,993
Issuance of common stock |  |  | 0 |
Payment of common stock tendered for employee stock-based compensation tax obligations | 0 |  | (638,139) | (214,794)
Balances | $ 169,442,134 | 124,140,813 | $ 169,442,134 | 124,140,813
Issuance of common stock upon exercise of stock options |  | $ 0 |  | $ 0
Repurchase of common stock (including excise tax) (in shares) | 0 | 0 | 0 | (1,700,000)
Repurchase of common stock (including excise tax) |  |  |  | $ (11,072,511)
Common Stock [Member] |  |  |  |
Balances (in shares) | 71,305,893 | 71,082,944 | 71,091,616 | 72,675,190
Balances | $ 7,131 | $ 7,109 | $ 7,109 | $ 7,268
Net income/(loss) | $ 0 | 0 | $ 0 | 0
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares) | (37,427) |  | 82,136 |
Payment of common stock tendered for employee stock-based compensation tax obligations | $ (4) |  | $ 8 | $ (0)
Issuance of common stock upon vesting of RSUs (in shares) | 100,808 |  | 309,854 | 144,576
Issuance of common stock upon vesting of RSUs | $ 10 |  | $ 31 | $ 15
Cash dividend ($0.60 per share) | 0 |  | 0 | 0
Stock-based compensation | $ 0 | $ 0 | $ 0 | 0
Issuance of common stock (in shares) |  |  | 49,940 |
Issuance of common stock |  |  | $ 5 |
Payment of common stock tendered for employee stock-based compensation tax obligations (in shares) | 37,427 |  | (82,136) |
Payment of common stock tendered for employee stock-based compensation tax obligations | $ 4 |  | $ (8) | $ 0
Balances (in shares) | 71,369,274 | 71,091,616 | 71,369,274 | 71,091,616
Balances | $ 7,137 | $ 7,109 | $ 7,137 | $ 7,109
Issuance of common stock upon exercise of stock options (in shares) |  | 8,672 |  | 8,672
Issuance of common stock upon exercise of stock options |  | $ 0 |  | $ 0
Repurchase of common stock (including excise tax) (in shares) |  |  |  | (1,736,822)
Repurchase of common stock (including excise tax) |  |  |  | $ (174)
Additional Paid-in Capital [Member] |  |  |  |
Balances | 237,502,156 | 234,873,128 | 235,795,420 | 233,957,767
Net income/(loss) | 0 | 0 | 0 | 0
Payment of common stock tendered for employee stock-based compensation tax obligations | (282,596) |  | 638,131 | 214,794
Issuance of common stock upon vesting of RSUs | (10) |  | (31) | (15)
Cash dividend ($0.60 per share) | 0 |  | 0 | 0
Stock-based compensation | 813,774 | 459,823 | 2,876,071 | 1,589,993
Issuance of common stock |  |  | 5 |
Payment of common stock tendered for employee stock-based compensation tax obligations | 282,596 |  | (638,131) | (214,794)
Balances | 238,033,324 | 235,332,951 | 238,033,324 | 235,332,951
Issuance of common stock upon exercise of stock options |  | 0 |  | 0
Repurchase of common stock (including excise tax) |  |  |  | 0
Retained Earnings [Member] |  |  |  |
Balances | (69,950,738) | (110,806,181) | (38,943,622) | (63,804,993)
Net income/(loss) | 1,343,945 | (393,066) | 13,453,901 | (4,186,799)
Payment of common stock tendered for employee stock-based compensation tax obligations | 0 |  | (0) | (0)
Issuance of common stock upon vesting of RSUs | 0 |  | 0 | 0
Cash dividend ($0.60 per share) | 8,466 |  | (43,108,606) | (32,135,118)
Stock-based compensation | 0 | 0 | 0 | 0
Issuance of common stock |  |  | 0 |
Payment of common stock tendered for employee stock-based compensation tax obligations | 0 |  | 0 | 0
Balances | (68,598,327) | (111,199,247) | (68,598,327) | (111,199,247)
Issuance of common stock upon exercise of stock options |  | 0 |  | 0
Repurchase of common stock (including excise tax) |  |  |  | (11,072,337)
AOCI Attributable to Parent [Member] |  |  |  |
Balances | 0 | 0 | 0 | 0
Net income/(loss) | 0 | 0 | 0 | 0
Payment of common stock tendered for employee stock-based compensation tax obligations | (282,600) |  | (0) | (0)
Issuance of common stock upon vesting of RSUs | 0 |  | 0 | 0
Cash dividend ($0.60 per share) | 0 |  | 0 | 0
Stock-based compensation | 0 | 0 | 0 | 0
Issuance of common stock |  |  | 0 |
Payment of common stock tendered for employee stock-based compensation tax obligations | 282,600 |  | 0 | 0
Balances | $ 0 | 0 | $ 0 | 0
Issuance of common stock upon exercise of stock options |  | $ 0 |  | 0
Repurchase of common stock (including excise tax) |  |  |  | $ 0

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