STOCK BASED COMPENSATION (Details) - USD ($)					12 Months Ended
	Jan. 04, 2017	Jun. 06, 2016	Feb. 05, 2016	Feb. 04, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Shares
Outstanding, beginning (in shares)					3,206,916	2,873,582
Options granted (in shares)					500,000	570,000
Options exercised (in shares)				(100,000)	0	(100,000)
Options cancelled/forfeited/expired (in shares)					(526,499)	(136,666)
Outstanding, ending (in shares)					3,180,417	3,206,916	2,873,582
Vested (in shares)					1,959,167	2,044,104
Exercisable (in shares)					1,959,167	2,044,104
Weighted Average Exercise Price
Outstanding, beginning - weighted average exercise price (in dollars per share)					$ 4.33	$ 4.99
Options granted - weighted average exercise price (in dollars per share)					1.01	1.38
Options exercised - weighted average exercise price (in dollars per share)					(0.00)	(0.50)
Options cancelled/forfeited/expired - weighted average exercise price (in dollars per share)					(14.00)	(8.64)
Outstanding, ending - weighted average exercise price (in dollars per share)					2.21	4.33	$ 4.99
Vested - weighted average exercise price (in dollars per share)					2.55	4.05
Exercisable - weighted average exercise price (in dollars per share)					$ 2.55	$ 4.05
Weighted Average Remaining Contractual Life (in Years)
Outstanding - weighted average remaining contractual life					4 years 7 months 15 days	5 years 9 months 18 days	5 years 11 months 8 days
Options granted - weighted average remaining contractual life					8 years 1 month 12 days	9 years 8 months 19 days
Vested - weighted average remaining contractual life					4 years 5 months 12 days	4 years 3 months 15 days
Exercisable - weighted average remaining contractual life					4 years 5 months 12 days	4 years 3 months 15 days
Grant Date Fair Value
Outstanding, beginning - grant date fair value					$ 2,966,028	$ 2,585,341
Options granted - grant date fair value					363,089	622,115
Options exercised - grant date fair value					0	(27,753)
Options cancelled/forfeited/expired - grant date fair value					(30,921)	(213,675)
Outstanding, ending - grant date fair value					3,298,196	2,966,028	$ 2,585,341
Vested - grant date fair value					1,885,850	1,295,727
Exercisable - grant date fair value					$ 1,885,850	$ 1,295,727
2013 Stock Incentive Plan | Stock option
Shares
Options granted (in shares)	20,000	170,000	100,000
Weighted Average Exercise Price
Options granted - weighted average exercise price (in dollars per share)	$ 1.31	$ 1.39	$ 1.73