STOCK-BASED COMPENSATION (Stock Option Award Activity) (Details) - $ / shares	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Number of Options outstanding
Exercised (in shares)			(4,692)
Common stock options
Number of Options outstanding
Outstanding at the beginning of the year (in shares)				1,255,280
Granted (in shares)	25,000	110,000		127,000	227,500
Exercised (in shares)				0
Forfeited (in shares)				(43,677)
Outstanding at the end of the reporting period (in shares)	1,338,603			1,338,603		1,255,280
Number of Options Exercisable
Exercisable at the beginning of the year (in shares)				843,019
Vested (in shares)				(129,372)
Forfeited (in shares)				(15,242)
Exercisable at the end of the reporting period (in shares)	957,149			957,149		843,019
Weighted Average Exercise Price Outstanding
Outstanding at the beginning of period (in dollars per share)				$ 4.82
Granted (in dollars per share)				2.72
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)	$ 4.63			4.63		$ 4.82
Weighted Average Exercise Price Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)				5.02
Vested exercisable (in dollars per share)				4.07
Forfeited (in dollars per share)				4.57
Exercisable at the end of the reporting period (in dollars per share)	4.90			4.90		5.02
Weighted Average Grant Date Fair Value Outstanding
Outstanding at the beginning of the reporting period (in dollars per share)				3.03
Granted (in dollars per share)				1.83
Exercised (in dollars per share)				0.00
Forfeited (in dollars per share)				2.90
Outstanding at the end of the reporting period (in dollars per share)	2.92			2.92		3.03
Weighted Average Grant Date Fair Value Exercisable
Exercisable at the beginning of the reporting period (in dollars per share)				3.13
Vested options exercisable (in dollars per share)				2.57
Exercised options exercisable (in dollars per share)				0.00
Forfeited options exercisable (in dollars per share)				2.76
Exercisable at the end of the reporting period (in dollars per share)	$ 3.06			$ 3.06		$ 3.13
Weighted Average Remaining Life In Years Outstanding
Outstanding Weighted Average Remaining Life (in years)				7 years 1 month 6 days		7 years 9 months
Granted (in years)				9 years 7 months 2 days
Weighted Average Remaining Life Exercisable
Weighted Average Remaining Life In Years				6 years 5 months 27 days		7 years 2 months 23 days
Granted (in years)				7 years 2 months 19 days