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Note 15 - Employee Stock Purchase Plan (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Jun. 23, 2021
Stock Issued During Period, Value, Employee Stock Purchase Plan | $ 164 | $ 205 |  |  |  |  |  |  |
Share Price (in dollars per share) | $ 8.59 | $ 13.6 | $ 7.3 | $ 9.88 | $ 13.25 | $ 15.17 | $ 26.26 | $ 20.74 |
Share-based Compensation Arrangement by Share-based Payment Award, Discount Amount | $ 24 | $ 31 |  |  |  |  |  |  |
Employee Stock Purchase Plan [Member] |  |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized |  |  |  |  |  |  |  |  | 250,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant | 190,393 |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) | 16,674 | 11,780 |  |  |  |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | $ 140 | $ 174 |  |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ 7.3 | $ 11.56 | $ 6.2 | $ 8.4 | $ 11.26 | $ 12.89 | $ 22.32 | $ 17.63 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Discount from Market Price, Purchase Date | 15.00% | 15.00% |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Discount Amount | $ 24 | $ 31 |  |  |  |  |  |  |

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- Definition Discount amount from fair value on purchase date that participants pay for shares. + References No definition available. + Details
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- Definition Discount rate from fair value on purchase date that participants pay for shares. + 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 Number of shares authorized for issuance under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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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