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Note 14 - Common Shares (Details Textual) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Feb. 10, 2023 | Feb. 09, 2023 | Feb. 10, 2022 | Feb. 09, 2021 | Feb. 12, 2020 | Feb. 13, 2019
Common Stock, Shares Authorized (in shares) | 250,000,000 | 250,000,000 |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding, Ending Balance (in shares) | 10,817,110 | 10,747,417 |  |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Shares (in shares) | 0 | 0 | 70,238 |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value | $ 0 | $ 0 | $ 3,281 |  |  |  |  |  |  |
Stock Buyback Program 2023 [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  | $ 40,000 | $ 40,000 |  |  |  |
Stock Buyback Program 2022 [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  | $ 40,000 |  |  |
Stock Repurchased and Retired During Period, Shares (in shares) | 0 |  |  |  |  |  |  |  |  |
Stock Buyback Program 2021 [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  | $ 40,000 |  |
Stock Repurchased and Retired During Period, Shares (in shares) |  | 0 |  |  |  |  |  |  |  |
Stock Buyback Program 2020 [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  | $ 40,000 |
Stock Repurchased and Retired During Period, Shares (in shares) |  |  | 70,238 |  |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value |  |  | $ 3,300 |  |  |  |  |  |  |
Stock Buyback Program 2019 [Member] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  |  | $ 40,000
Stock Repurchased and Retired During Period, Shares (in shares) |  |  | 0 | 101,816 |  |  |  |  |  |
Stock Repurchased and Retired During Period, Value |  |  |  | $ 5,000 |  |  |  |  |  |

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