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Note 5 - Stock-based Compensation - Schedule of Compensation Cost Related to Non-vested Awards (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2026 | Dec. 31, 2025
Non-vested awards, amount | $ 3,204 | $ 3,516
Share-Based Payment Arrangement, Option [Member] |  |
Non-vested awards, amount | $ 1,612 | $ 1,767
Non-vested awards, period (Year) | 2 years 6 months 21 days | 2 years 9 months 18 days
Restricted Stock [Member] |  |
Non-vested awards, amount | $ 1,592 | $ 1,749
Non-vested awards, period (Year) | 2 years 6 months 18 days | 2 years 9 months 18 days

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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