INCOME TAXES - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Deferred tax assets:
Allowance for loan losses	$ 3,402	$ 3,077
Deferred compensation	857	770
Unrealized loss on available for sale securities	0	1,464
Bonus accrual	399	328
Accretion of acquisition allowance	183	327
Other real estate owned	134	65
Other	420	484
Total deferred tax assets	5,395	6,515
Deferred tax liabilities:
Unrealized gain on available for sale securities	(526)	0
Premises and equipment	(2,353)	(2,334)
Prepaid expenses	(270)	(179)
Deferred loan costs, net	(137)	(118)
Intangibles	(470)	(590)
Other	(101)	(85)
Total deferred tax liabilities	(3,857)	(3,306)
Net deferred tax asset	$ 1,538	$ 3,209