SHAREHOLDERS' EQUITY - OPTIONS ROLLFORWARD (Details) - Amended and Restated 2009 Stock Incentive Plan - Stock options, employees and directors - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Number of options
Options outstanding at beginning of period (in shares)	1,247,185
Options granted (in shares)	320,600
Options expired (in shares)	(600)
Options outstanding at end of period (in shares)	1,567,205	1,247,185
Options vested and expected to be vested at end of period (in shares)	1,544,330
Options vested at end of period (in shares)	756,437
Weighted average exercise price per share
Options outstanding at beginning of period (in dollars per share)	$ 4.40
Options outstanding at end of period (in dollars per share)	4.06	$ 4.40
Options vested and expected to be vested at end of period (in dollars per share)	4.08
Options vested at end of period (in dollars per share)	$ 3.99
Weighted average remaining contractual life
Weighted average remaining contractual life, Outstanding (in years)	6 years 2 months 27 days	5 years 9 months 11 days
Weighted average remaining contractual life, Vested and expected to be vested (in years)	6 years 2 months 9 days
Weighted average remaining contractual life, Vested (in years)	4 years 2 months 9 days
Aggregate intrinsic value
Aggregate intrinsic value, Outstanding at the end of the period	$ 170
Aggregate intrinsic value, Vested and expected to be vested	160
Maximum
Aggregate intrinsic value
Aggregate intrinsic value, Outstanding at the beginning of the period	$ 1
Aggregate intrinsic value, Outstanding at the end of the period		$ 1