v3.25.2
Note 9 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Debt Securities, Available-for-Sale, Excluding Accrued Interest $ 439,676 $ 437,735
Fair Value, Recurring [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 439,676 437,735
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 439,676 437,735
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
Residential Mortgage Backed Securities Issued by US Government Sponsored Enterprises [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 222,524 228,391
Residential Mortgage Backed Securities Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 222,524 228,391
Residential Mortgage Backed Securities Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
Residential Mortgage Backed Securities Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 222,524 228,391
Residential Mortgage Backed Securities Issued by US Government Sponsored Enterprises [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
Commercial Mortgage Backed Securities Issued by US Government Agencies [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 129,241 121,870
Commercial Mortgage Backed Securities Issued by US Government Agencies [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 129,241 121,870
Commercial Mortgage Backed Securities Issued by US Government Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
Commercial Mortgage Backed Securities Issued by US Government Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 129,241 121,870
Commercial Mortgage Backed Securities Issued by US Government Agencies [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
US States and Political Subdivisions Debt Securities [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 87,911 87,474
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 87,911 87,474
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 0 0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest 87,911 87,474
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]    
Debt Securities, Available-for-Sale, Excluding Accrued Interest $ 0 $ 0