v3.25.2
Note 6 - Fair Value Measurements - Assets and Liabilities at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Securities available for sale, at fair value $ 590,021 $ 601,898
Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value 0 0
Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value 590,021 601,898
Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value 0 0
US Government Agencies Debt Securities [Member]    
Securities available for sale, at fair value 303,421 311,124
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value 0 0
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value 303,421 311,124
US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value 0 0
US States and Political Subdivisions Debt Securities [Member]    
Securities available for sale, at fair value 148,236 145,734
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value 0 0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value 148,236 145,734
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value 0 0
Collateralized Mortgage-Backed Securities [Member]    
Securities available for sale, at fair value 132,538 138,298
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value 0 0
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value 132,538 138,298
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value 0 0
Corporate Debt Securities [Member]    
Securities available for sale, at fair value 5,826 5,743
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value 0 0
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value 5,826 5,743
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value $ 0 0
US Treasury Securities [Member]    
Securities available for sale, at fair value   999
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]    
Securities available for sale, at fair value   0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]    
Securities available for sale, at fair value   999
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]    
Securities available for sale, at fair value   $ 0