Note 16 - Regulatory Matters - Schedule of Bank's Actual Capital Amounts and Ratios (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Total capital (to risk-weighted assets), Actual, Amount	$ 296,584	$ 312,069
Total capital (to risk-weighted assets), Actual, Ratio	0.1569	0.1718
Total capital (to risk-weighted assets), Capital Adequacy Purposes, Amount	$ 151,269	$ 145,300
Total capital (to risk-weighted assets)	0.08	0.08
Total capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Amoun	$ 189,086	$ 181,625
Total capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Ratio	0.10	0.10
Common equity tier 1 capital (to risk-weighted assets), Actual, Amount	$ 276,847	$ 294,553
Common equity tier 1 capital (to risk-weighted assets), Actual, Ratio	0.1464	0.1622
Common equity tier 1 capital (to risk-weighted assets), Capital Adequacy Purposes, Amount	$ 85,089	$ 81,731
Common equity tier 1 capital (to risk-weighted assets), Capital Adequacy Purposes, Ratio	4.50%	4.50%
Common equity tier 1 capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Amount	$ 122,906	$ 118,056
Common equity tier 1 capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Ratio	6.50%	6.50%
Tier 1 capital (to risk-weighted assets), Actual, Amount	$ 276,847	$ 294,553
Tier 1 capital (to risk-weighted assets), Actual, Ratio	0.1464	0.1622
Tier 1 capital (to risk-weighted assets), Capital Adequacy Purposes, Amount	$ 113,451	$ 108,975
Tier 1 capital (to risk-weighted assets), Capital Adequacy Purposes, Ratio	0.06	0.06
Tier 1 capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Amount	$ 151,269	$ 145,300
Tier 1 capital (to risk-weighted assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Ratio	0.08	0.08
Tier 1 capital (to average assets)	$ 276,847	$ 294,553
Tier 1 capital (to average assets), Actual, Amount	0.1208	0.1466
Tier 1 capital (to average assets), Capital Adequacy Purposes, Amount	$ 91,708	$ 80,375
Tier 1 capital (to average assets), Capital Adequacy Purposes, Ratio	0.04	0.04
Tier 1 capital (to average assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Amount	$ 114,635	$ 100,469
Tier 1 capital (to average assets), To Be Well Capitalized Under the Prompt Corrective Action Provision, Ratio	0.05	0.05

Common equity tier one capital required for capital adequacy to risk weighted assets.

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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
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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