Note 9 - Regulatory Matters - Schedule of Capital Amounts and Ratios (Details) $ in Thousands	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)
Total Capital (to Risk Weighted Assets)	$ 159,308	$ 154,753
Total Capital (to Risk Weighted Assets), ratio	0.1467	0.1658
Total Capital (to Risk Weighted Assets), minimum for adequacy adequacy	$ 113,987	$ 98,010
Total Capital (to Risk Weighted Assets), minimum for adequacy adequacy ratio	0.105	0.105
Total Capital (to Risk Weighted Assets), well capitalized, minimum	$ 108,559	$ 93,343
Total Capital (to Risk Weighted Assets), well capitalized, minimum ratio	0.10	0.10
Tier 1 Capital (to Risk Weighted Assets)	$ 148,763	$ 145,235
Tier 1 Capital (to Risk Weighted Assets), ratio	0.137	0.1556
Tier 1 Capital (to Risk Weighted Assets), minimum for adequacy adequacy	$ 92,275	$ 79,342
Tier 1 Capital (to Risk Weighted Assets), minimum for adequacy adequacy ratio	0.085	0.085
Tier 1 Capital (to Risk Weighted Assets), well capitalized, minimum	$ 86,847	$ 74,674
Tier 1 Capital (to Risk Weighted Assets), well capitalized, minimum ratio	0.08	0.08
Common Equity Tier 1 Capital (to Risk Weighted Assets)	$ 148,763	$ 145,235
Common Equity Tier 1 Capital (to Risk Weighted Assets), ratio	0.137	0.1556
Common Equity Tier 1 Capital (to Risk Weighted Assets), minimum for adequacy adequacy	$ 75,991	$ 65,340
Common Equity Tier 1 Capital (to Risk Weighted Assets), minimum for adequacy adequacy ratio	0.07	0.07
Common Equity Tier 1 Capital (to Risk Weighted Assets), well capitalized, minimum	$ 70,563	$ 60,673
Common Equity Tier 1 Capital (to Risk Weighted Assets), well capitalized, minimum ratio	0.065	0.065
Tier 1 Capital (to Average Assets)	$ 148,763	$ 145,235
Tier 1 Capital (to Average Assets), ratio	0.1003	0.1047
Tier 1 Capital (to Average Assets), minimum for adequacy adequacy	$ 59,325	$ 55,479
Tier 1 Capital (to Average Assets), minimum for adequacy adequacy ratio	0.04	0.04
Tier 1 Capital (to Average Assets), well capitalized, minimum	$ 74,157	$ 69,349
Tier 1 Capital (to Average Assets), well capitalized, minimum ratio	0.05	0.05

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Ratio of minimum Common Equity Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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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

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