Note 10 - Regulatory Capital - Schedule of Regulatory Capital (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Total Capital (to Risk Weighted Assets)	$ 215,572	$ 212,992
Total Capital (to Risk Weighted Assets), Ratio	0.1389	0.1402
Total Capital (to Risk Weighted Assets), Capital Adequacy	$ 124,127	$ 121,525
Total Capital (to Risk Weighted Assets), Capital Adequacy, Ratio	0.08	0.08
Total Capital (to Risk Weighted Assets), Well Capitalized	$ 155,159	$ 151,907
Total Capital (to Risk Weighted Assets), Well Capitalized, Ratio	0.10	0.10
Tier 1 Capital (to Risk Weighted Assets)	$ 196,163	$ 193,968
Tier 1 Capital (to Risk Weighted Assets), Ratio	0.1264	0.1277
Tier 1 Capital (to Risk Weighted Assets), Capital Adequacy	$ 93,095	$ 91,144
Tier 1 Capital (to Risk Weighted Assets), Capital Adequacy, Ratio	0.06	0.06
Tier 1 Capital (to Risk Weighted Assets), Well Capitalized	$ 124,127	$ 121,525
Tier 1 Capital (to Risk Weighted Assets), Well Capitalized, Ratio	0.08	0.08
Common Equity Tier 1 Capital (to Risk Weighted Assets)	$ 196,163	$ 193,968
Common Equity Tier 1 Capital (to Risk Weighted Assets), Ratio	0.1264	0.1277
Common Equity Tier 1 Capital (to Risk Weighted Assets), Capital Adequacy	$ 69,821	$ 68,358
Common Equity Tier 1 Capital (to Risk Weighted Assets), Capital Adequacy, Ratio	0.045	0.045
Common Equity Tier 1 Capital (to Risk Weighted Assets), Well Capitalized	$ 100,853	$ 98,739
Common Equity Tier 1 Capital (to Risk Weighted Assets), Well Capitalized, Ratio	0.065	0.065
Tier 1 Capital (to Average Assets)	$ 196,163	$ 193,968
Tier 1 Capital (to Average Assets), Ratio	0.1252	0.1159
Tier 1 Capital (to Average Assets), Capital Adequacy	$ 62,691	$ 66,924
Tier 1 Capital (to Average Assets), Capital Adequacy, Ratio	0.04	0.04
Tier 1 Capital (to Average Assets), Well Capitalized	$ 78,364	$ 83,655
Tier 1 Capital (to Average Assets), Well Capitalized, Ratio	0.05	0.05