LOANS AND ALLOWANCE FOR CREDIT LOSSES - Portfolio Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	$ 1,246,114		$ 1,196,018
Less: Allowance for credit losses	(16,610)	$ (12,943)	(11,519)	$ (10,856)	$ (10,139)	$ (10,088)
Net loans	1,229,504		1,184,499
Residential Real Estate [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	436,933		417,920
Less: Allowance for credit losses	(2,346)	(2,316)	(2,793)	(2,873)	(2,693)	(2,684)
Commercial Real Estate [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Less: Allowance for credit losses	(8,110)	(7,275)	(5,331)	(4,228)	(3,789)	(3,653)
Commercial Real Estate [Member] \| Owner-occupied [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	113,909		114,724
Commercial Real Estate [Member] \| Nonowner-occupied [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	301,616		269,285
Commercial Real Estate [Member] \| Construction [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	92,223		86,028
Commercial and Industrial [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	165,867		167,099
Less: Allowance for credit losses	(4,620)	(1,650)	(1,738)	(1,835)	(1,705)	(1,536)
Consumer [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Less: Allowance for credit losses	(1,534)	$ (1,702)	(1,657)	$ (1,920)	$ (1,952)	$ (2,215)
Consumer [Member] \| Automobile [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	31,865		37,277
Consumer [Member] \| Home Equity [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	54,806		50,605
Consumer [Member] \| Other [Member]
LOANS AND ALLOWANCE FOR CREDIT LOSSES [Abstract]
Total loans	$ 48,895		$ 53,080