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Note 9 - Regulatory Matters (Tables) | 3 Months Ended
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Mar. 31, 2026
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  |  |  |  |  |  |  |  |  | Minimum For Capital |  |  | Minimum To Be Well |
|  |  |  |  |  |  |  |  |  | Adequacy Purposes |  |  | Capitalized Under |
|  |  |  |  |  |  |  |  |  | Plus Capital |  |  | Prompt Corrective |
|  | Actual |  |  | Conservation Buffer |  |  | Action Provisions |
|  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
|  |  |  |  |  |  |  |  |  | (dollars in thousands) |  |  |  |  |  |  |  |  |
As of March 31, 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk Weighted Assets) |  | $ | 169,318 |  |  |  | 14.55 | % |  | $ | 122,171 |  |  |  | 10.50 | % |  | $ | 116,353 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk Weighted Assets) |  |  | 158,199 |  |  |  | 13.60 | % |  |  | 98,900 |  |  |  | 8.50 | % |  |  | 93,082 |  |  |  | 8.00 | %
Common Equity Tier 1 Capital (to Risk Weighted Assets) |  |  | 158,199 |  |  |  | 13.60 | % |  |  | 81,447 |  |  |  | 7.00 | % |  |  | 75,629 |  |  |  | 6.50 | %
Tier 1 Capital (to Average Assets) |  |  | 158,199 |  |  |  | 9.83 | % |  |  | 64,365 |  |  |  | 4.00 | % |  |  | 80,456 |  |  |  | 5.00 | %
As of December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total Capital (to Risk Weighted Assets) |  | $ | 165,616 |  |  |  | 14.29 | % |  | $ | 121,710 |  |  |  | 10.50 | % |  | $ | 115,914 |  |  |  | 10.00 | %
Tier 1 Capital (to Risk Weighted Assets) |  |  | 154,650 |  |  |  | 13.34 | % |  |  | 98,527 |  |  |  | 8.50 | % |  |  | 92,731 |  |  |  | 8.00 | %
Common Equity Tier 1 Capital (to Risk Weighted Assets) |  |  | 154,650 |  |  |  | 13.34 | % |  |  | 81,140 |  |  |  | 7.00 | % |  |  | 75,344 |  |  |  | 6.50 | %
Tier 1 Capital (to Average Assets) |  |  | 154,650 |  |  |  | 9.86 | % |  |  | 62,736 |  |  |  | 4.00 | % |  |  | 78,420 |  |  |  | 5.00 | %

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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 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B Reference 2: 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/1943274/2147477270/942-505-50-1 + Details
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