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Note 15 - Regulatory Capital (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | To be Well Capitalized |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Under Prompt |
|  |  |  |  |  |  |  |  |  | For Capital |  |  | For Capital Adequacy |  |  | Corrective |
|  | Actual |  |  | Adequacy Purposes |  |  | with Capital Buffer |  |  | Action Provisions |
Bank Only |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
At December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total risk-based capital (to risk-weighted assets) |  | $ | 339,436 |  |  |  | 13.37 | % |  | $ | 203,094 |  |  |  | 8.00 | % |  | $ | 266,561 |  |  |  | 10.50 | % |  | $ | 253,868 |  |  |  | 10.00 | %
Tier 1 risk-based capital (to risk-weighted assets) |  | $ | 307,686 |  |  |  | 12.12 | % |  | $ | 152,321 |  |  |  | 6.00 | % |  | $ | 215,787 |  |  |  | 8.50 | % |  | $ | 203,094 |  |  |  | 8.00 | %
Tier 1 leverage capital (to average assets) |  | $ | 307,686 |  |  |  | 10.39 | % |  | $ | 118,488 |  |  |  | 4.00 | % |  | $ | N/A |  |  |  | N/A |  |  | $ | 148,109 |  |  |  | 5.00 | %
CET 1 capital (to risk-weighted assets) |  | $ | 307,686 |  |  |  | 12.12 | % |  | $ | 114,240 |  |  |  | 4.50 | % |  | $ | 177,707 |  |  |  | 7.00 | % |  | $ | 165,014 |  |  |  | 6.50 | %

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- Definition Tabular disclosure of the capital amounts and ratios as of the balance sheet date, indicating whether the entity or entities are in compliance with regulatory capital requirements, by entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147480696/942-505-50-1B + Details
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