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STOCKHOLDERS' EQUITY (Details 1) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Grants		732,869
Number of Options, Exercised	15,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding at Beginning of Year	3,569,000
Number of Options, Grants	0
Number of Options, Exercised	15,000
Number of Option, Forfeited/cancelled/expired/settled	5,000
Number of Options, Balance at End of Year	3,549,000		3,569,000
Number of Options, Vested and expected to vest	3,518,000
Number of Options, Unvested	187,000
Number of Options, Exercisable	3,362,000
Weighted-Average Exercise Price, Outstanding at Beginning of Year (in dollars per share)	$ 2.12
Weighted-Average Exercise Price, Grants (in dollars per share)	0
Weighted-Average Exercise Price, Exercised (in dollars per share)	1.90
Weighted-Average Exercise Price, Forfeited/cancelled/expired/settled (in dollars per share)	1.90
Weighted-Average Exercise Price, Balance at End of Year (in dollars per share)	2.12		$ 2.12
Weighted-Average Exercise Price, Vested and expected to vest (in dollars per share)	2.12
Weighted-Average Exercise Price, Unvested (in dollars per share)	1.90
Weighted-Average Exercise Price, Exercisable (in dollars per share)	$ 2.13
Weighted-Average Remaining Contractual Term, Outstanding (in years)	6 years 11 months 8 days		7 years 2 months 8 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest (in years)	6 years 11 months 1 day
Weighted-Average Remaining Contractual Term, Unvested (in years)	8 years 5 months 1 day
Weighted-Average Remaining Contractual Term, Exercisable (in years)			6 years 10 months 6 days
Aggregate Intrinsic Value, Outstanding	$ 462,000		$ 130,000
Aggregate Intrinsic Value, Vested and expected to vest	458,000
Aggregate Intrinsic Value, Unvested	19,000
Aggregate Intrinsic Value, Exercisable	$ 443,000

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