BUSINESS SEGMENT - Schedule of Revenue by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 12,094	$ 9,762
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	8,653	7,336
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 3,441	$ 2,426