STOCK-BASED COMPENSATION (Stock Option Award Activity) (Details) - Common stock options - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2016
Number of Options outstanding
Outstanding at the beginning of the year (in shares)	1,082,490
Granted (in shares)	37,500	150,880
Exercised (in shares)	0
Forfeited (in shares)	(39,838)
Outstanding at the end of the reporting period (in shares)	1,080,152
Number of Options Exercisable
Exercisable at the beginning of the year (in shares)	704,303
Vested (in shares)	(37,470)
Forfeited (in shares)	0
Exercisable at the end of the reporting period (in shares)	741,773
Weighted Average Exercise Price Outstanding
Outstanding at the beginning of period (in dollars per share)	$ 4.87
Granted (in dollars per share)	5.57
Exercised (in dollars per share)	0.00
Forfeited (in dollars per share)	4.56
Outstanding at the end of the reporting period (in dollars per share)	4.90
Weighted Average Exercise Price Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)	5.08
Vested exercisable (in dollars per share)	4.73
Forfeited (in dollars per share)	0.00
Exercisable at the end of the reporting period (in dollars per share)	5.06
Weighted Average Grant Date Fair Value Outstanding
Outstanding at the beginning of the reporting period (in dollars per share)	3.00
Granted (in dollars per share)	3.77
Exercised (in dollars per share)	0.00
Forfeited (in dollars per share)	2.74
Outstanding at the end of the reporting period (in dollars per share)	3.03
Weighted Average Grant Date Fair Value Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)	3.17
Vested options exercisable (in dollars per share)	2.86
Exercised options exercisable (in dollars per share)	0.00
Forfeited options exercisable (in dollars per share)	0.00
Exercisable at the end of the reporting period (in dollars per share)	$ 3.15
Weighted Average Remaining Life In Years Outstanding
Outstanding Weighted Average Remaining Life (in years)	8 years 11 days		8 years 4 months 17 days
Granted (in years)	9 years 9 months 29 days
Weighted Average Remaining Life Exercisable
Exercisable, Weighted Average Remaining Life	7 years 8 months 19 days		8 years 1 month 24 days
Granted (in years)	7 years 10 months 2 days