SEGMENT AND GEOGRAPHIC DATA Geographic Data Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Revenue	$ 25,762	$ 17,127	$ 68,363	$ 50,357
Net assets	33,958	41,373	33,958	41,373
United Kingdon
Segment Reporting Information [Line Items]
Revenue	4,295	4,194	12,794	11,558
Net assets	2,358	3,713	2,358	3,713
Australia
Segment Reporting Information [Line Items]
Revenue	15,325	7,026	37,382	23,141
Net assets	2,737	3,485	2,737	3,485
United States
Segment Reporting Information [Line Items]
Revenue	3,219	3,295	9,759	10,110
Net assets	23,387	28,486	23,387	28,486
Other
Segment Reporting Information [Line Items]
Revenue	2,923	2,612	8,428	5,548
Net assets	$ 5,476	$ 5,689	$ 5,476	$ 5,689