INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Income tax expense (benefit) allocated to comprehensive income (loss)	$ 229	$ 14	$ 73
Operating loss carryforward, valuation allowance	862	1,284	$ 1,452
State
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	18,697	21,918
Tax credit carryforward	$ 3,778	$ 4,049