SECURITIES - Amortized Cost and Fair Value of Securities with Gross Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Available for sale:
Amortized Cost	$ 646,163	$ 669,014
Gross unrealized gains	541	1
Gross unrealized losses	(75,566)	(91,775)
Allowance for credit losses	0	0
Fair value	571,138	577,240
State and Municipal [Member]
Available for sale:
Amortized Cost	200,414	199,588
Gross unrealized gains	350	1
Gross unrealized losses	(25,617)	(26,292)
Allowance for credit losses	0	0
Fair value	175,147	173,297
Residential Mortgage-backed Securities [Member]
Available for sale:
Amortized Cost	308,335	321,021
Gross unrealized gains	118	0
Gross unrealized losses	(44,427)	(56,925)
Allowance for credit losses	0	0
Fair value	264,026	264,096
Commercial Mortgage-backed Securities [Member]
Available for sale:
Amortized Cost	47,584	46,601
Gross unrealized gains	0	0
Gross unrealized losses	(4,288)	(6,241)
Allowance for credit losses	0	0
Fair value	43,296	40,360
Commercial Collateralized Mortgage Obligations [Member]
Available for sale:
Amortized Cost	68,213	73,697
Gross unrealized gains	73	0
Gross unrealized losses	(197)	(214)
Allowance for credit losses	0	0
Fair value	68,089	73,483
Asset-backed and Other Amortizing Securities [Member]
Available for sale:
Amortized Cost	14,617	16,107
Gross unrealized gains	0	0
Gross unrealized losses	(912)	(1,526)
Allowance for credit losses	0	0
Fair value	13,705	14,581
Other Securities [Member]
Available for sale:
Amortized Cost	7,000	12,000
Gross unrealized gains	0	0
Gross unrealized losses	(125)	(577)
Allowance for credit losses	0	0
Fair value	$ 6,875	$ 11,423