INCOME TAXES - Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ 10,899	$ 10,450	$ 2,203
State	2,019	2,101	1,031
Total current	12,918	12,551	3,234
Deferred:
Federal	(3,183)	(3,716)	117
State	(203)	(237)	22
Total deferred expense (benefit)	(3,386)	(3,953)	139
Income tax expense	$ 9,532	$ 8,598	$ 3,373