STOCKHOLDERS' EQUITY (Details) - Employee Stock Option [Member] - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding at Beginning of Year	3,712,000
Number of Options, Grants	0
Number of Options, Exercised	0
Number Of Option, Forfeited/cancelled/expired	56,000
Number of Options, Balance at End of Year	3,656,000	3,712,000
Number of Options, Vested and expected to vest	3,546,000
Number of Options, Unvested	756,000
Number of Options, Exercisable	2,900,000
Weighted-Average Exercise Price, Outstanding at Beginning of Year (in dollars per share)	$ 2.06
Weighted-Average Exercise Price, Grants (in dollars per share)	0
Weighted-Average Exercise Price, Exercised (in dollars per share)	0
Weighted-Average Exercise Price, Forfeited/cancelled/expired (in dollars per share)	3.27
Weighted-Average Exercise Price, Balance at End of Year (in dollars per share)	2.04	$ 2.06
Weighted-Average Exercise Price, Vested and expected to vest (in dollars per share)	2.03
Weighted-Average Exercise Price, Unvested (in dollars per share)	2.45
Weighted-Average Exercise Price, Exercisable (in dollars per share)	$ 1.94
Weighted-Average Remaining Contractual Term, Outstanding (in years)	4 years 11 months 16 days	5 years 2 months 12 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest (in years)	4 years 9 months 29 days
Weighted-Average Remaining Contractual Term, Unvested (in years)	9 years
Weighted-Average Remaining Contractual Term, Exercisable (in years)	3 years 10 months 24 days
Aggregate Intrinsic Value, Outstanding at Beginning of Year	$ 733,000
Aggregate Intrinsic Value, Outstanding at End of Year	94,800	$ 733,000
Aggregate Intrinsic Value, Vested and expected to vest	94,800
Aggregate Intrinsic Value, Unvested	0
Aggregate Intrinsic Value, Exercisable	$ 94,800