v3.26.1
FAIR VALUE MEASUREMENT AND DISCLOSURE (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financial assets:    
Trading securities $ 4,948 $ 5,747
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 892,153 930,401
Loans held for sale 13,866 14,965
Financial liabilities:    
Debt Securities, Trading 4,948 5,747
Obligations of states and political subdivisions    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 5,272 5,275
MBS issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 663,253 684,389
CMO issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 207,134 224,373
Fair Value, Measurements, Recurring    
Financial assets:    
Trading securities 4,948 5,747
Loans held for sale 13,890 15,040
Financial liabilities:    
Debt Securities, Trading 4,948 5,747
Fair Value, Measurements, Recurring | Obligations of states and political subdivisions    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 5,272 5,275
Fair Value, Measurements, Recurring | MBS issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 663,253 684,389
Fair Value, Measurements, Recurring | CMO issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 207,134 224,373
Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 16,494 16,364
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring    
Financial assets:    
Trading securities 4,948 5,747
Loans held for sale 0 0
Financial liabilities:    
Debt Securities, Trading 4,948 5,747
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | MBS issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | CMO issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring    
Financial assets:    
Trading securities 0 0
Loans held for sale 13,890 15,040
Financial liabilities:    
Debt Securities, Trading 0 0
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 5,272 5,275
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | MBS issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 663,253 684,389
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | CMO issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 207,134 224,373
Observable Market Data (Level 2) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 16,494 16,364
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring    
Financial assets:    
Trading securities 0 0
Loans held for sale 0 0
Financial liabilities:    
Debt Securities, Trading 0 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Obligations of states and political subdivisions    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | MBS issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | CMO issued or guaranteed by U.S. government-sponsored enterprises    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring | Corporate Bond Securities [Member]    
Financial assets:    
Available-for-sale securities, at fair value (amortized cost of $937,123 and $972,686, respectively) 0 0
Interest Rate Lock Commitments [Member] | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 163 100
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 41 20
Interest Rate Lock Commitments [Member] | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Interest Rate Lock Commitments [Member] | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 163 100
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 41 20
Interest Rate Lock Commitments [Member] | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Forward delivery commitments | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 150 134
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 20 44
Forward delivery commitments | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Forward delivery commitments | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 150 134
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 20 44
Forward delivery commitments | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Customer loan swaps | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 9,522 9,087
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 9,549 9,127
Customer loan swaps | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Customer loan swaps | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 9,522 9,087
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 9,549 9,127
Customer loan swaps | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring    
Financial assets:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value 0 0
Financial liabilities:    
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value 0 0
Interest rate contracts    
Financial assets:    
Fair Value 9,308 8,381
Financial liabilities:    
Derivative Liability 258 2,923
Interest rate contracts | Fair Value, Measurements, Recurring    
Financial assets:    
Fair Value 9,308 8,381
Financial liabilities:    
Derivative Liability 258 2,923
Interest rate contracts | Readily Available Market Prices (Level 1) | Fair Value, Measurements, Recurring    
Financial assets:    
Fair Value 0 0
Financial liabilities:    
Derivative Liability 0 0
Interest rate contracts | Observable Market Data (Level 2) | Fair Value, Measurements, Recurring    
Financial assets:    
Fair Value 9,308 8,381
Financial liabilities:    
Derivative Liability 258 2,923
Interest rate contracts | Company Determined Fair Value (Level 3) | Fair Value, Measurements, Recurring    
Financial assets:    
Fair Value 0 0
Financial liabilities:    
Derivative Liability $ 0 $ 0