Note 9 - Stockholders' Equity - Option Activity (Details) - $ / shares |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2026 |
Mar. 31, 2026 |
Jun. 30, 2026 |
|
| Balance, shares (in shares) | 543 | 543 | 543 |
| Balance, weighted average exercise price (in dollars per share) | $ 11,697.23 | $ 11,697 | $ 11,697 |
| Granted, shares (in shares) | 0 | 0 | |
| Granted, weighted average exercise price (in dollars per share) | $ 0 | $ 0 | |
| Expired or forfeited, shares (in shares) | 0 | 0 | |
| Expired or forfeited, weighted average exercise price (in dollars per share) | $ 0 | $ 0 | |
| Balance, shares (in shares) | 543 | 543 | 543 |
| Balance, weighted average exercise price (in dollars per share) | $ 11,697.23 | $ 11,697.23 | $ 11,697.23 |
| X | ||||||||||
- Definition For presentations that combine terminations, 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 or that expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 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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