OPERATING SEGMENTS - Schedule of Other Operating Segment Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Reporting Information [Line Items]
Depreciation and amortization expense	$ 111	$ 182	$ 301	$ 362
Interest expense, net	254	238	517	475
Operating Segments
Segment Reporting Information [Line Items]
Depreciation and amortization expense	111	182	301	362
Interest expense, net	191	214	392	438
Unallocated Amount
Segment Reporting Information [Line Items]
Depreciation and amortization expense	0	0	0	0
Interest expense, net	$ 63	$ 24	$ 125	$ 37