v3.26.3
Note 8 - Fair Value - Schedule of Financial Assets and Liabilities at Fair Value Measured on Recurring Basis (Details) - USD ($)
Oct. 30, 2026
Sep. 30, 2026
Dec. 31, 2025
Investment securities   $ 1,403,531,000 $ 1,343,457,000
Interest Rate Swap [Member]      
Derivative asset $ 4,800,000   911,000
Forward sales contract $ 4,800,000   911,000
Forward Sales Contract [Member]      
Derivative asset   209,000 0
Forward sales contract   (0) 15,000
Interest Rate Contract [Member]      
Derivative asset   0 71,000
Forward sales contract   33,000 (0)
Fair Value, Recurring [Member]      
Investment securities   1,403,531,000 1,343,457,000
Equity securities   488,000 370,000
Loans held for sale   3,144,000 1,516,000
Fair Value, Recurring [Member] | Fair Value Hedging [Member]      
Forward sales contract     529,000
Fair Value, Recurring [Member] | Interest Rate Swap [Member]      
Derivative asset   4,786,000 911,000
Forward sales contract   4,786,000 911,000
Fair Value, Recurring [Member] | Forward Sales Contract [Member]      
Forward sales contract   209,000 15,000
Fair Value, Recurring [Member] | Interest Rate Contract [Member]      
Derivative asset   33,000 71,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
Equity securities   488,000 370,000
Loans held for sale   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value Hedging [Member]      
Forward sales contract     0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]      
Derivative asset   0 0
Forward sales contract   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Forward Sales Contract [Member]      
Forward sales contract   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member] | Interest Rate Contract [Member]      
Derivative asset   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   1,403,045,000 1,342,239,000
Equity securities   0 0
Loans held for sale   3,144,000 1,516,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value Hedging [Member]      
Forward sales contract     529,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]      
Derivative asset   4,786,000 911,000
Forward sales contract   4,786,000 911,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Sales Contract [Member]      
Forward sales contract   209,000 15,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Contract [Member]      
Derivative asset   33,000 71,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   486,000 1,218,000
Equity securities   0 0
Loans held for sale   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value Hedging [Member]      
Forward sales contract     0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]      
Derivative asset   0 0
Forward sales contract   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Forward Sales Contract [Member]      
Forward sales contract   0 0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] | Interest Rate Contract [Member]      
Derivative asset   0 0
US Treasury and Government [Member]      
Investment securities   3,925,000 95,295,000
US Treasury and Government [Member] | Fair Value, Recurring [Member]      
Investment securities   3,925,000 95,295,000
US Treasury and Government [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
US Treasury and Government [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   3,925,000 95,295,000
US Treasury and Government [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   0 0
US States and Political Subdivisions Debt Securities [Member]      
Investment securities   572,295,000 503,697,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]      
Investment securities   572,295,000 503,697,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   572,295,000 503,697,000
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   0 0
Corporate Debt Securities [Member]      
Investment securities   25,403,000 13,045,000
Corporate Debt Securities [Member] | Fair Value, Recurring [Member]      
Investment securities   25,403,000 13,045,000
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   24,917,000 11,827,000
Corporate Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   486,000 1,218,000
Collateralized Mortgage-Backed Securities [Member]      
Investment securities   565,445,000 547,134,000
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]      
Investment securities   565,445,000 547,134,000
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   565,445,000 547,134,000
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   0 0
Collateralized Mortgage Obligations [Member]      
Investment securities   234,852,000 182,216,000
Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member]      
Investment securities   234,852,000 182,216,000
Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   234,852,000 182,216,000
Collateralized Mortgage Obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   0 0
Small Business Administration [Member]      
Investment securities   1,611,000 2,070,000
Small Business Administration [Member] | Fair Value, Recurring [Member]      
Investment securities   1,611,000 2,070,000
Small Business Administration [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Investment securities   0 0
Small Business Administration [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Investment securities   1,611,000 2,070,000
Small Business Administration [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Investment securities   $ 0 $ 0