FAIR VALUE DISCLOSURES, Assets (Liabilities) Measured at Fair Value on Recurring and Non-Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Securities available for sale [Abstract]
Securities available for sale	$ 570,000		$ 577,240
Mortgage servicing rights	25,134	$ 24,906	26,292	$ 26,426	$ 26,843	$ 26,569
State and Municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	165,591		173,297
Residential Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	266,874		264,096
Commercial Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	41,220		40,360
Commercial Collateralized Mortgage Obligations [Member]
Securities available for sale [Abstract]
Securities available for sale	70,651		73,483
Other Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	11,648		11,423
Recurring [Member]
Securities available for sale [Abstract]
Asset-backed and other amortizing securities	14,016		14,581
Loans held for sale (mandatory)	15,020		13,791
Mortgage servicing rights	25,134		26,292
Asset derivatives	$ 11,979		$ 15,998
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets		Other assets
Liability derivatives	$ (162)		$ (12)
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities		Accrued expenses and other liabilities
Recurring [Member] | State and Municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	$ 165,591		$ 173,297
Recurring [Member] | Residential Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	266,874		264,096
Recurring [Member] | Commercial Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	41,220		40,360
Recurring [Member] | Commercial Collateralized Mortgage Obligations [Member]
Securities available for sale [Abstract]
Securities available for sale	70,651		73,483
Recurring [Member] | Other Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	11,648		11,423
Recurring [Member] | Level 1 [Member]
Securities available for sale [Abstract]
Asset-backed and other amortizing securities	0		0
Loans held for sale (mandatory)	0		0
Mortgage servicing rights	0		0
Asset derivatives	0		0
Liability derivatives	0		0
Recurring [Member] | Level 1 [Member] | State and Municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 1 [Member] | Residential Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 1 [Member] | Commercial Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 1 [Member] | Commercial Collateralized Mortgage Obligations [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 1 [Member] | Other Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 2 [Member]
Securities available for sale [Abstract]
Asset-backed and other amortizing securities	14,016		14,581
Loans held for sale (mandatory)	15,020		13,791
Mortgage servicing rights	0		0
Asset derivatives	11,979		15,998
Liability derivatives	(162)		(12)
Recurring [Member] | Level 2 [Member] | State and Municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	165,591		173,297
Recurring [Member] | Level 2 [Member] | Residential Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	266,874		264,096
Recurring [Member] | Level 2 [Member] | Commercial Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	41,220		40,360
Recurring [Member] | Level 2 [Member] | Commercial Collateralized Mortgage Obligations [Member]
Securities available for sale [Abstract]
Securities available for sale	70,651		73,483
Recurring [Member] | Level 2 [Member] | Other Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	11,648		11,423
Recurring [Member] | Level 3 [Member]
Securities available for sale [Abstract]
Asset-backed and other amortizing securities	0		0
Loans held for sale (mandatory)	0		0
Mortgage servicing rights	25,134		26,292
Asset derivatives	0		0
Liability derivatives	0		0
Recurring [Member] | Level 3 [Member] | State and Municipal [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 3 [Member] | Residential Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 3 [Member] | Commercial Mortgage-backed Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 3 [Member] | Commercial Collateralized Mortgage Obligations [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Recurring [Member] | Level 3 [Member] | Other Securities [Member]
Securities available for sale [Abstract]
Securities available for sale	0		0
Non-recurring [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Loans held for investment	5,661		20,566
Non-recurring [Member] | Level 1 [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Loans held for investment	0		0
Non-recurring [Member] | Level 2 [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Loans held for investment	0		0
Non-recurring [Member] | Level 3 [Member]
Assets measured at fair value on a non-recurring basis [Abstract]
Loans held for investment	$ 5,661		$ 20,566