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BASIS OF PRESENTATION (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Product Information [Line Items]
Total Device revenue	$ 10,297	$ 7,573	$ 19,493	$ 14,450
Deferred Revenue					$ 900
Devices [Member]
Product Information [Line Items]
Purchased	720	488	1,310	713
Leased	1,568	1,185	2,953	2,548
Total Device revenue	$ 2,288	$ 1,673	$ 4,263	$ 3,261

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