Note 9 - Stock-based Compensation - Stock-Based Payment Awards (Details) |
6 Months Ended |
|---|---|
|
Jun. 30, 2026
USD ($)
$ / shares
shares
| |
| Outstanding and Exerciseable, shares (in shares) | shares | 16,378 |
| Outstanding and Exerciseable, weighted average exercise price (in dollars per share) | $ / shares | $ 34 |
| Cancelled/Forfeited, shares (in shares) | shares | (958) |
| Cancelled/Forfeited, weighted average exercise price (in dollars per share) | $ / shares | $ 26.31 |
| Outstanding and Exerciseable, shares (in shares) | shares | 15,420 |
| Outstanding and Exerciseable, weighted average exercise price (in dollars per share) | $ / shares | $ 34.42 |
| Outstanding and Exerciseable, shares (Year) | 1 year 8 months 12 days |
| Outstanding and Exerciseable, shares | $ | $ 0 |
| 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/2009/role/commonPracticeRef
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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 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 contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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