Note 12 - Share-based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands |
9 Months Ended | ||
|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
|
| Exercised, options (in shares) | (275,125) | (70,750) | |
| Expired (in shares) | 45,000 | ||
| Expired (in dollars per share) | $ 8.03 | ||
| Share-Based Payment Arrangement, Option [Member] | |||
| Balance, outstanding (in shares) | 4,692,438 | ||
| outstanding, weighted average exercise price (in dollars per share) | $ 3.33 | ||
| Balance, aggregate intrinsic value | $ 21,221 | $ 10,243 | |
| Granted, options (in shares) | 3,358,416 | ||
| Granted, weighted average exercise price (in dollars per share) | $ 4.79 | ||
| Forfeitures, options (in shares) | (408,875) | ||
| Forfeitures, weighted average exercise price (in dollars per share) | $ 3.67 | ||
| Exercised, options (in shares) | (275,125) | ||
| Exercised, weighted average exercise price (in dollars per share) | $ 2.63 | ||
| Balance, outstanding (in shares) | 7,321,854 | ||
| outstanding, weighted average exercise price (in dollars per share) | $ 3.99 | ||
| X | ||||||||||
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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