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Note 16 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Millions | Feb. 13, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Proceeds from insurance coverage claim | $ 5.4 |  |
Common Stock, Par or Stated Value Per Share |  | $ 0.25 | $ 0.25
Common Stock [Member] | Cash Dividend |  |  |
Common Stock, Par or Stated Value Per Share | $ 0.00625 |  |
Common Stock [Member] | Cash Dividend | Maximum [Member] |  |  |
Common Stock, Par or Stated Value Per Share | 0.00375 |  |
Common Stock [Member] | Cash Dividend | Minimum [Member] |  |  |
Common Stock, Par or Stated Value Per Share | $ 0.0025 |  |

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