v3.26.1
Note 7 - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure $ 172,446,000 $ 171,544,000
Commitments to Extend Credit [Member]    
Off-Balance-Sheet, Credit Loss, Liability 706,000 711,000
Standby Letters of Credit [Member] | Maximum [Member]    
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure $ 50,000 $ 50,000