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Note 12 - Stock-based Compensation - Stock Options Outstanding (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Outstanding awards (in shares) |  | 7
Outstanding, weighted-average exercise price (in dollars per share) |  | $ 471.64
Outstanding, weighted-average remaining contractual life (Year) | 2 years 10 months 24 days | 8 years 3 months 18 days
Outstanding, aggregate intrinsic value | $ 0 | $ 3
Restricted stock units vested (in shares) | (5) |
Restricted stock units vested, weighted-average exercise price (in dollars per share) | $ 0 |
Options forfeited/cancelled (in shares) | (1) |
Options forfeited/cancelled, weighted-average exercise price (in dollars per share) | $ 928.62 |
Outstanding awards (in shares) | 1 |
Outstanding, weighted-average exercise price (in dollars per share) | $ 448.84 |
Vested and expected to vest (in shares) | 1 |
Vested and expected to vest, weighted-average exercise price (in dollars per share) | $ 448.84 |
Vested and expected to vest, weighted-average remaining contractual life (Year) | 2 years 10 months 24 days |
Vested and expected to vest, aggregate intrinsic value | $ 0 |
Vested and exercisable (in shares) | 1 |
Exercisable, weighted-average exercise price (in dollars per share) | $ 2,541.07 |
Exercisable, weighted-average remaining contractual life (Year) | 2 years 10 months 24 days |

X
- Definition As of the balance sheet date, the weighted-average exercise price for outstanding stock options and equity instruments other than options that are fully vested or expected to vest. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for fully vested and expected to vest equity instruments other than options and options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of shares into which fully or partially vested stock equity instruments other than options and options outstanding as of the balance sheet date can be currently converted under the option plan. + References No definition available. + Details
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- Definition Weighted average price at which option or equity instruments other than options, holders acquired shares when converting their stock options or equity instruments other than options, into shares. + References No definition available. + Details
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- Definition Weighted average remaining contractual term for equity instruments other than options and options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, including stock (or unit) options, outstanding during the reporting period. + References No definition available. + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan or equity instruments other than options. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest equity instruments other than options and options outstanding. + References No definition available. + Details
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- Definition As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options and equity instruments other than options outstanding can be converted under the option plan. + References No definition available. + Details
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- Definition Weighted average per share amount of options vested in period. + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting 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)(2)(iii)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- 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. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (e)(1) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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