SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	$ 45,712	$ 28,146	$ 76,366	$ 57,657
Cost of revenue	27,847	15,734	45,053	32,702
Gross profit	$ 17,865	$ 12,412	$ 31,313	$ 24,955
Gross margin	39.10%	44.10%	41.00%	43.30%
Operating loss	$ (4,454)	$ (566)	$ (9,073)	$ (641)
Total assets	376,899		376,899		$ 244,424
North America
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	28,982	26,396	56,631	54,888
Cost of revenue	16,222	14,446	31,368	30,634
Gross profit	$ 12,760	$ 11,950	$ 25,263	$ 24,254
Gross margin	44.00%	45.30%	44.60%	44.20%
Operating loss	$ (3,067)	$ (265)	$ (7,161)	$ (158)
Total assets	119,475		119,475		219,402
International
Segment Reporting, Other Significant Reconciling Item [Line Items]
Total revenue	16,730	1,750	19,735	2,769
Cost of revenue	11,625	1,288	13,685	2,068
Gross profit	$ 5,105	$ 462	$ 6,050	$ 701
Gross margin	30.50%	26.40%	30.70%	25.30%
Operating loss	$ (1,387)	$ (301)	$ (1,912)	$ (483)
Total assets	$ 257,424		$ 257,424		$ 25,022