STOCK-BASED COMPENSATION (Stock Option Award Activity) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
Number of Options outstanding
Outstanding at the beginning of the year (in shares)	1,082,490	801,690
Granted (in shares)	252,500	488,300
Exercised (in shares)	(4,692)
Forfeited (in shares)	(75,018)	(174,572)
Outstanding at the end of the reporting period (in shares)	1,255,280	1,082,490
Number of Options Exercisable
Exercisable at the beginning of the year (in shares)	704,303	419,174
Vested (in shares)	(161,404)	(457,338)
Forfeited (in shares)	(17,996)	(139,281)
Exercisable at the end of the reporting period (in shares)	843,019	704,303
Weighted Average Exercise Price Outstanding
Outstanding at the beginning of period (in dollars per share)	$ 4.87	$ 5.25
Granted (in dollars per share)	4.54	4.62
Exercised (in dollars per share)	2.10
Forfeited (in dollars per share)	4.72	6.40
Outstanding at the end of the reporting period (in dollars per share)	4.82	4.87
Weighted Average Exercise Price Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)	5.08	5.94
Vested exercisable (in dollars per share)	4.69	4.57
Canceled/Forfeited (in dollars per share)	4.72	6.65
Exercisable at the end of the reporting period (in dollars per share)	5.02	5.08
Weighted Average Grant Date Fair Value Outstanding
Outstanding at the beginning of the reporting period (in dollars per share)	3.00	3.32
Options granted (in dollars per share)	3.09	2.79
Exercised (in dollars per share)	1.75
Forfeited (in dollars per share)	2.89	4.18
Outstanding at the end of the reporting period (in dollars per share)	3.03	3.00
Weighted Average Grant Date Fair Value Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)	3.17	3.86
Vested options exercisable (in dollars per share)	$ 2.89	2.77
Exercised (in dollars per share)	$ 1.75
Forfeited options exercisable (in dollars per share)	$ 2.84	4.38
Exercisable at the end of the reporting period (in dollars per share)	$ 3.13	$ 3.17
Weighted Average Remaining Life In Years Outstanding
Outstanding at the end of the reporting period (in years)	7 years 9 months	8 years 4 months 17 days	7 years 4 months 24 days
Granted, Weighted average remaining life (in years)	9 years 1 month 28 days	9 years 6 months 4 days
Weighted Average Remaining Life Exercisable
Exercisable at the end of the reporting period (in years)	7 years 2 months 23 days	8 years 1 month 24 days	6 years
Vested, Weighted average remaining live (in years)	7 years 6 months 22 days	8 years 7 months 24 days
Non-vested restricted stock unit awards
Number of Options outstanding
Granted (in shares)	252,500	488,300
Exercised (in shares)		(32,928)
Outstanding at the end of the reporting period (in shares)	1,255,280
Number of Options Exercisable
Exercisable at the end of the reporting period (in shares)	843,019
Weighted Average Exercise Price Outstanding
Exercised (in dollars per share)		$ 2.37
Weighted Average Grant Date Fair Value Outstanding
Exercised (in dollars per share)		$ 1.41
Weighted Average Remaining Life Exercisable
Exercisable at the end of the reporting period (in years)	7 years 2 months 23 days