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Note 10 - Employee Benefits - Non-vested Option Awards Activity (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Granted, shares (in shares) | 28,000 |  |
Granted, weighted average grant date fair value (in dollars per share) | $ 5.26 | $ 6.63 | $ 5.79
Forfeited, shares (in shares) | (61,900) |  |
Service Based Options [Member] |  |  |
Beginning of period, nonvested, shares (in shares) |  | 406,300 |
Beginning of period, nonvested, weighted average grant date fair value (in dollars per share) |  | $ 4.88 |
Nonvested, weighted average remaining contractual life (Year) | 4 years 4 months 24 days | 5 years |
Granted, shares (in shares) | 28,000 |  |
Granted, weighted average grant date fair value (in dollars per share) | $ 5.26 |  |
Granted, weighted average remaining contractual life (Year) | 6 years 7 months 6 days |  |
Vested, shares (in shares) | (128,300) |  |
Vested, weighted average grant date fair value (in dollars per share) | $ 4.67 |  |
Vested, weighted average remaining contractual life (Year) | 3 years 7 months 6 days |  |
Forfeited, shares (in shares) | (43,500) |  |
Forfeited, weighted average grant date fair value (in dollars per share) | $ 4.57 |  |
Forfeited, weighted average remaining contractual life (Year) | 4 years 2 months 12 days |  |
End of period, nonvested, shares (in shares) | 262,500 |  | 406,300
End of period, nonvested, weighted average grant date fair value (in dollars per share) | $ 5.07 |  | $ 4.88

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- Definition Sharebased compensation arrangement by sharebased payment award options granted weighted average remaining contractual term1. + References No definition available. + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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