INCOME TAXES - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation Allowance [Line Items]
Tax expense from discontinued operations	$ (600,000)	$ 23,000,000	$ 11,000,000
Valuation allowances	16,800,000	18,300,000
Deductible from state and foreign temporary tax differences	300,000
Undistributed earnings of its foreign subsidiaries	200,000
Uncertain tax positions	0
Unrecognized tax benefits, accrued interest and penalties	0	$ 0	$ 0
Foreign
Valuation Allowance [Line Items]
Net operating loss	(9,000,000)
Tax credit carryforward, amount	1,700,000
Net operating loss carryforwards, valuation allowance	9,000,000
Tax credit carryforward, valuation allowance	1,700,000
State
Valuation Allowance [Line Items]
Operating loss carryforwards utilized in period	(2,800,000)
Net operating loss carryforwards, valuation allowance	5,800,000
French tax authority
Valuation Allowance [Line Items]
Tax expense from discontinued operations	$ (600,000)