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Note 12 - Preferred Stock (Details Textual) $ / shares in Thousands |  | 12 Months Ended
--- | --- | ---
Aug. 19, 2021 USD ($) $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) shares
Stock Issued During Period, Shares, New Issues (in shares) | shares |  | 1,533 | 995 | 153
Stock Issued During Period, Value, New Issues |  | $ 0 | $ 0 | $ 0
Preferred Stock, No Par Value (in dollars per share) | $ / shares |  | $ 0 | $ 0 |
Series A Preferred Stock [Member] |  |  |  |
Preferred Stock, Dividend Rate, Percentage | 5.25% |  |  |
Preferred Stock, No Par Value (in dollars per share) | $ / shares | $ 0 |  |  |
Preferred Stock, Liquidation Preference, Value | $ 1,000 |  |  |
Series A Preferred Stock [Member] | Underwritten Public Offering [Member] |  |  |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 115,000 |  |  |
Stock Issued During Period, Value, New Issues | $ 115,000,000 |  |  |
Depositary Shares, Interest in Preferred Stock | 0.025 |  |  |
Proceeds from Issuance of Preferred Stock and Preference Stock | $ 110,900,000 |  |  |

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