ORGANIZATION (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	May 30, 2014 patent
Organization
Number of reportable segments | segment			1
Accumulated deficit	$ 361,164		$ 361,164		$ 343,591
Net loss	5,407	$ 6,675	17,573	$ 13,369
Cash	$ 15,466	$ 8,880	$ 15,466	$ 8,880	$ 22,978	$ 14,581
CTRM Business
Organization
Number of patents and patents applications acquired | patent							250