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Note 18 - Shareholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 21 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 15, 2023 | Mar. 21, 2023
APIC, Share-Based Payment Arrangement, Other, Increase for Cost Recognition |  | $ 6,100 |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 751 | 802 |  |  |  |
Proceeds from Warrant Exercises |  | $ 16,658 | $ 40 |  |  |
Warrants to Purchase Common Stock [Member] |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  |  |  |  | 1 |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  |  |  |  | $ 5 |
Stock Issued During Period, Shares, Exercise of Warrants (in shares) | 2,019,720 | 3,331,661 |  |  |  |
Proceeds from Warrant Exercises | $ 10,100 | $ 16,700 |  |  |  |
Share Repurchase Program [Member] |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  | $ 10,000
Treasury Stock, Shares, Acquired (in shares) | 628,587 | 1,193,557 |  |  |  |
Treasury Stock, Value, Acquired, Cost Method | $ 2,800 | $ 4,800 |  |  |  |
Preferred Stock Converted into Common Stock [Member] |  |  |  |  |  |
Conversion of Stock, Shares Converted (in shares) |  | 149,733 |  | 149,733 |  |
Conversion of Stock, Shares Issued (in shares) |  | 935,831 |  | 935,831 |  |

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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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