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Note 17 - Employee Stock Purchase Plan (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 23, 2021
Stock Issued During Period, Value, Employee Stock Purchase Plan | $ 233 | $ 50 |  |  |  |
Share Price (in dollars per share) | $ 10.30 | $ 12.72 | $ 7.63 | $ 6.82 | $ 10.73 |
Share-based Compensation Arrangement by Share-based Payment Award, Discount Amount | $ 36 | $ 8 |  |  |  |
Employee Stock Purchase Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  | 250,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares) | 27,162 | 3,991 |  |  |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | $ 197 | $ 43 |  |  |  |
Shares Issued, Price Per Share (in dollars per share) | $ 8.76 | $ 10.81 | $ 6.49 | $ 5.80 | $ 9.12 |
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 | $ 36 | $ 8 |  |  |  |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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