SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Anti-Dilutive Shares Excluded from Calculation or EPS) (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Earnings Per Share, or EPS
Number of anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	6,101,177	6,798,269
Common stock warrants
Earnings Per Share, or EPS
Number of anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	3,465,256	4,491,568
Common stock options
Earnings Per Share, or EPS
Number of anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	1,080,152	904,798
Restricted stock units
Earnings Per Share, or EPS
Number of anti-dilutive shares excluded from the calculation of diluted net loss per share attributable to common stockholders	1,555,769	1,401,903