SHAREHOLDERS' EQUITY (DEFICIT) - STOCK BASED COMPENSATION (Details) - USD ($)			12 Months Ended
	Oct. 05, 2016	Jul. 07, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Jan. 25, 2015	Jun. 18, 2009
Stock options, employees
Stock-based compensation
Threshold limit for reduction in exercise price (in dollars per share)		$ 3.61
Additional compensation due to fair value modification		$ 49,000
Compensation cost recorded from modification of equity-based arrangements				$ 5,000	$ 44,000
Options granted (in shares)			433,620
Stock options, directors.
Stock-based compensation
Options granted (in shares)	23,250
Options granted (in dollars per share)	$ 3.85
2009 Plan | Stock options, all inclusive recipients
Stock-based compensation
Shares authorized for issue under the plan					978,655		55,971
Vesting period			3 years
Expiration period			7 years
Shares available for future grant (in shares)						1,072,879
Amended and Restated 2009 Stock Incentive Plan
Stock-based compensation
Automatic annual increase in authorized number of ordinary shares available for future grant under stock option plan (as a percent)	4.00%
Minimum | Stock options, employees
Stock-based compensation
Options granted (in dollars per share)			$ 2.74
Maximum | Stock options, employees
Stock-based compensation
Options granted (in dollars per share)			$ 3.80