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Note 14 - Goodwill and Other Intangible Assets - Schedule of Changes in Intangible Assets (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Balance, net |  |  | $ 13,710,000 |  |
Amortization | $ (787,000) | $ (897,000) | (2,426,000) | $ (2,757,000) |
Balance, net | 11,284,000 |  | 11,284,000 |  | $ 13,710,000
Core Deposits [Member] |  |  |  |  |
Balance |  |  | 24,928,000 | 24,928,000 | 24,928,000
Balance, accumulated amortization |  |  | (11,218,000) | (7,585,000) | (7,585,000)
Amortization |  |  | (2,426,000) |  | (3,633,000)
Balance | 24,928,000 |  | 24,928,000 |  | 24,928,000
Balance, accumulated amortization | (13,644,000) |  | (13,644,000) |  | (11,218,000)
Balance, net | 11,284,000 |  | 11,284,000 |  |
Core Deposits [Member] | Net Amount [Member] |  |  |  |  |
Balance, net |  |  | 13,710,000 | $ 17,343,000 | 17,343,000
Amortization |  |  | (2,426,000) |  | (3,633,000)
Balance, net | $ 11,284,000 |  | $ 11,284,000 |  | $ 13,710,000

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