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Note 9 - Capital Ratios (Tables) | 12 Months Ended
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Dec. 31, 2025
Notes Tables |
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] |
|  | Actual |  |  | Minimum Required to be Well-Capitalized (1) |
|  | Amount |  |  | Ratio |  |  | Amount |  |  | Ratio |
|  | (Dollars in thousands) |
As of December 31, 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tier 1 capital (to Average Assets) |  | $ | 66,366 |  |  |  | 24.32 | % |  | $ | 24,563 |  |  |  | >9% |
As of December 31, 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tier 1 capital (to Average Assets) |  | $ | 64,634 |  |  |  | 23.53 | % |  | $ | 24,722 |  |  |  | >9% |

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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/1943274/2147477270/942-505-50-1 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/1943274/2147477270/942-505-50-1B + Details
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