DERIVATIVE INSTRUMENTS (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Feb. 29, 2016	Dec. 31, 2015
Derivative instruments
Derivatives (gain) loss	$ (241,000)	$ 1,047,000
Derivative instruments, fair value	1,073,000		$ 1,314,000
Other Income (Expense)
Derivative instruments
Derivatives (gain) loss	241,000	$ (1,000,000)
Warrants
Derivative instruments
Number of shares into which a warrant may be converted		587,950		395,716
Derivative instruments, fair value	$ 1,073,000	$ 2,954,000	$ 1,314,000		$ 1,907,000
Warrants | Public Offering, May 2014
Derivative instruments
Number of shares into which a warrant may be converted	1,750,156