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Note 17 - At The Market Agreement (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 18, 2023 | Jun. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
Common Stock, Par or Stated Value Per Share (in dollars per share) |  | $ 0.01 | $ 0.01 | $ 0.01
Stock Issued During Period, Value, New Issues |  | $ 27,935 | $ 34,515 |
At Market Offering [Member] | B. Riley Securities, Inc. [Member] |  |  |  |
Equity Sales Agreement, Maximum Aggregate Gross Proceeds | $ 50,000 |  |  |
ATM Offering, Notice for Termination (Day) | 5 days |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | 794,000 | 3,943,807 | 4,654,430 |
Stock Issued During Period, Value, New Issues |  | $ 27,900 | $ 34,500 | $ 7,300

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