INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Allowance for credit losses	$ 7,060	$ 3,402
Deferred compensation	920	857
Bonus accrual	422	399
Deferred loan fees, net	259	0
Accretion of acquisition allowance	112	183
Other real estate owned	2	134
Other	437	420
Total deferred tax assets	9,212	5,395
Deferred tax liabilities:
Unrealized gain on available for sale securities	(3,717)	(526)
Premises and equipment	(2,721)	(2,353)
Prepaid expenses	(343)	(270)
Deferred loan costs, net	0	(137)
Intangibles	(350)	(470)
Other	(42)	(101)
Total deferred tax liabilities	(7,173)	(3,857)
Net deferred tax asset	$ 2,039	$ 1,538