FAIR VALUE - Schedule of Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
ASSETS
Debt securities available-for-sale	$ 695,532	$ 584,330
Debt securities held-to-maturity	212,570	229,694
LIABILITIES
Deposits held for sale	(89,923)	(88,119)
Carrying Amount
ASSETS
Cash and cash equivalents	602,460	527,896
Debt securities available-for-sale	695,532	584,330
Debt securities held-to-maturity	225,193	242,138
Equity securities	10,904	10,865
Loans held for sale	280	2,517
Net loans receivable	6,366,965	6,426,685
FHLB and other restricted stock holdings and investments	75,493	58,547
Interest rate swaps	5,198	5,873
Accrued interest receivable	34,148	34,324
LIABILITIES
Deposits	(7,140,276)	(7,027,109)
Short-term borrowings	(164,000)	(164,000)
Subordinated notes and debentures	(105,570)	(105,494)
Deposits held for sale	(89,923)	(88,119)
Interest rate swaps	(5,198)	(5,873)
Accrued interest payable	(8,648)	(7,324)
Fair Value
ASSETS
Cash and cash equivalents	602,460	527,896
Debt securities available-for-sale	695,532	584,330
Debt securities held-to-maturity	212,570	229,694
Equity securities	10,904	10,865
Loans held for sale	278	2,506
Net loans receivable	6,385,256	6,444,201
Interest rate swaps	5,198	5,873
Accrued interest receivable	34,148	34,324
LIABILITIES
Deposits	(7,135,307)	(7,024,319)
Short-term borrowings	(164,032)	(164,145)
Subordinated notes and debentures	(118,748)	(119,450)
Deposits held for sale	(89,847)	(88,074)
Interest rate swaps	(5,198)	(5,873)
Accrued interest payable	(8,648)	(7,324)
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value
ASSETS
Cash and cash equivalents	602,460	527,896
Debt securities available-for-sale	68,072	88,113
Debt securities held-to-maturity	53,676	58,483
Equity securities	8,905	8,782
Loans held for sale	0	0
Net loans receivable	0	0
Interest rate swaps	0	0
Accrued interest receivable	687	1,078
LIABILITIES
Deposits	(5,987,179)	(5,929,321)
Short-term borrowings	0	0
Subordinated notes and debentures	0	0
Deposits held for sale	(72,371)	(70,524)
Interest rate swaps	0	0
Accrued interest payable	0	0
Significant Other Observable Inputs (Level 2) | Fair Value
ASSETS
Cash and cash equivalents	0	0
Debt securities available-for-sale	627,460	496,217
Debt securities held-to-maturity	158,894	171,211
Equity securities	1,999	2,083
Loans held for sale	278	2,506
Net loans receivable	0	0
Interest rate swaps	5,198	5,873
Accrued interest receivable	3,108	2,911
LIABILITIES
Deposits	(1,148,128)	(1,094,998)
Short-term borrowings	(164,032)	(164,145)
Subordinated notes and debentures	(118,748)	(119,450)
Deposits held for sale	(17,476)	(17,550)
Interest rate swaps	(5,198)	(5,873)
Accrued interest payable	(8,648)	(7,324)
Significant Unobservable Inputs (Level 3) | Fair Value
ASSETS
Cash and cash equivalents	0	0
Debt securities available-for-sale	0	0
Debt securities held-to-maturity	0	0
Equity securities	0	0
Loans held for sale	0	0
Net loans receivable	6,385,256	6,444,201
Interest rate swaps	0	0
Accrued interest receivable	30,353	30,335
LIABILITIES
Deposits	0	0
Short-term borrowings	0	0
Subordinated notes and debentures	0	0
Deposits held for sale	0	0
Interest rate swaps	0	0
Accrued interest payable	$ 0	$ 0