v3.26.1
Note 10 - Commitments and Contingencies (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Commitments And Contingencies Disclosure [Line Items]    
Allowance for credit losses on unused commitments $ 73,000 $ 76,000
Standby Letters of Credit [Member]    
Commitments And Contingencies Disclosure [Line Items]    
Financial instrument commitments expire within one year $ 11,817,000  
Maximum [Member]    
Commitments And Contingencies Disclosure [Line Items]    
Standby letters of credit expiration period 1 year  
Lessee leasing arrangements, operating leases, renewal term 10 years  
Minimum [Member]    
Commitments And Contingencies Disclosure [Line Items]    
Lessee leasing arrangements, operating leases, renewal term 5 years