INVESTMENT SECURITIES (Investment Portfolio Composition) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Available-for-sale
Amortized cost	$ 341,307	$ 367,747
Unrealized Gains	74	108
Unrealized Losses	30,300	29,928
Allowance for Credit Losses	(140)	(25)
Fair Value	310,941	337,902
Federal Home Loan Bank	3,000	3,200
Federal Reserve Bank stock	5,100	5,100
Held to Maturity
Amortized Cost	582,984	625,022
Unrealized Gains	4	13
Unrealized Losses	31,744	33,284
Fair Value	551,244	591,751
U.S. Government Treasury [Member]
Available-for-sale
Amortized cost	24,941	25,947
Unrealized Gains	0	1
Unrealized Losses	1,073	1,269
Allowance for Credit Losses	0	0
Fair Value	23,868	24,679
Held to Maturity
Amortized Cost	427,878	457,681
Unrealized Gains	0	0
Unrealized Losses	14,143	16,492
Fair Value	413,735	441,189
U.S. Government Agency [Member]
Available-for-sale
Amortized cost	133,562	152,983
Unrealized Gains	74	104
Unrealized Losses	7,531	8,053
Allowance for Credit Losses	0	0
Fair Value	126,105	145,034
States and Political Subdivisions [Member]
Available-for-sale
Amortized cost	43,302	43,951
Unrealized Gains	0	1
Unrealized Losses	4,669	4,861
Allowance for Credit Losses	(5)	(8)
Fair Value	38,628	39,083
Mortgage-Backed Securities [Member]
Available-for-sale
Amortized cost	69,810	73,015
Unrealized Gains	0	2
Unrealized Losses	11,283	9,714
Allowance for Credit Losses	0	0
Fair Value	58,527	63,303
Held to Maturity
Amortized Cost	155,106	167,341
Unrealized Gains	4	13
Unrealized Losses	17,601	16,792
Fair Value	137,509	150,562
Corporate Debt Securities [Member]
Available-for-sale
Amortized cost	61,596	63,600
Unrealized Gains	0	0
Unrealized Losses	5,744	6,031
Allowance for Credit Losses	(135)	(17)
Fair Value	55,717	57,552
Other Securities [Member]
Available-for-sale
Amortized cost	8,096	8,251
Unrealized Gains	0	0
Unrealized Losses	0	0
Allowance for Credit Losses	0	0
Fair Value	$ 8,096	$ 8,251

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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