STOCKHOLDERS' EQUITY (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Grants		732,869
Number of Options, Exercised		58,190
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Grants	0	733,000	0
Number of Options, Exercised		58,000
Number of Option, Forfeited/cancelled/expired/settled		1,825,000
Number of Options, Balance at End of Year	3,654,000	3,654,000		4,804,000
Number of Options, Vested and expected to vest	3,529,000	3,529,000
Number of Options, Unvested	1,206,000	1,206,000
Number of Options, Exercisable	2,448,000	2,448,000
Weighted-Average Exercise Price, Grants (in dollars per share)		$ 1.81
Weighted-Average Exercise Price, Exercised (in dollars per share)		1.41
Weighted-Average Exercise Price, Forfeited/cancelled/expired/settled (in dollars per share)		1.41
Weighted-Average Exercise Price, Balance at End of Year (in dollars per share)	$ 2.11	2.11		$ 1.89
Weighted-Average Exercise Price, Vested and expected to vest (in dollars per share)	2.12	2.12
Weighted-Average Exercise Price, Unvested (in dollars per share)	1.86	1.86
Weighted-Average Exercise Price, Exercisable (in dollars per share)	$ 2.24	$ 2.24
Weighted-Average Remaining Contractual Term, Outstanding (in years)		7 years 8 months 23 days		4 years 10 months 24 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest (in years)		7 years 8 months 5 days
Weighted-Average Remaining Contractual Term, Unvested (in years)		9 years 2 months 16 days
Weighted-Average Remaining Contractual Term, Exercisable (in years)		7 years
Aggregate Intrinsic Value, Outstanding	$ 708,000	$ 708,000		$ 795,000
Aggregate Intrinsic Value, Vested and expected to vest	681,000	681,000
Aggregate Intrinsic Value, Unvested	295,000	295,000
Aggregate Intrinsic Value, Exercisable	$ 412,000	$ 412,000