PREMISES AND EQUIPMENT - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
PREMISES AND EQUIPMENT [Abstract]
Premises and equipment, gross	$ 126,637	$ 124,752
Less accumulated depreciation	(75,074)	(71,801)
Premises and equipment, net	51,563	52,951
Land [Member]
PREMISES AND EQUIPMENT [Abstract]
Premises and equipment, gross	9,304	9,514
Buildings and Improvements [Member]
PREMISES AND EQUIPMENT [Abstract]
Premises and equipment, gross	66,476	66,707
Furniture and Equipment [Member]
PREMISES AND EQUIPMENT [Abstract]
Premises and equipment, gross	48,435	47,166
Construction in Process [Member]
PREMISES AND EQUIPMENT [Abstract]
Premises and equipment, gross	$ 2,422	$ 1,365