SEGMENT AND GEOGRAPHIC DATA - Geographic Data Reporting (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 25,413	$ 25,762	$ 74,117	$ 68,363
Net assets	32,058		32,058		$ 33,958
United Kingdon
Segment Reporting Information [Line Items]
Revenue	3,151	4,295	9,629	12,794
Net assets	3,397		3,397		2,358
Australia
Segment Reporting Information [Line Items]
Revenue	18,085	15,325	50,082	37,382
Net assets	4,581		4,581		2,737
United States
Segment Reporting Information [Line Items]
Revenue	1,620	3,219	6,393	9,759
Net assets	18,388		18,388		23,387
Other
Segment Reporting Information [Line Items]
Revenue	2,557	$ 2,923	8,013	$ 8,428
Net assets	$ 5,692		$ 5,692		$ 5,476