WARRANTS (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2018	Dec. 31, 2017
Warrants to purchase common stock issued and outstanding
Number of Warrants		86,419
Weighted average exercise price		$ 248.92
Weighted average life in years		2 years 11 months 16 days
Common Stock
Warrants to purchase common stock issued and outstanding
Warrants for purchase of common stock (in shares)			23,102
Common Stock | Public Offering, March 2016
Warrants to purchase common stock issued and outstanding
Warrants for purchase of common stock (in shares)	85,869
Equity issuance (in price per unit)	$ 187.25
Warrants. | Public Offering, March 2016
Warrants to purchase common stock issued and outstanding
Warrant Exercise Price	250.00
Equity issuance (in price per unit)	$ 0.25
Percentage of warrant exercises price over public offering price	133.00%
Fair value of warrants
Fair value of warrants	$ 11,726
Expected volatility (as a percent)	112.80%
Risk-free interest rate (as a percent)	1.34%
Expected term (in years)	5 years
Expected dividend yield (as a percent)	0.00%
Common Stock And Warrants | Public Offering, March 2016
Warrants to purchase common stock issued and outstanding
Number of shares issued (in shares)	171,734
Proceeds from issuance of common stock and warrants	$ 29,905
Equity | Derivative with Exercise Price One
Warrants to purchase common stock issued and outstanding
Warrants Issued Year		2012
Number of Warrants		243
Warrant Exercise Price		$ 166.00
Expiration date		Oct. 05, 2019
Equity | Derivative with Exercise Price Three
Warrants to purchase common stock issued and outstanding
Warrants Issued Year		2016
Number of Warrants		85,869
Warrant Exercise Price		$ 250.00
Expiration date		Mar. 18, 2021
Liability | Derivative with Exercise Price Two
Warrants to purchase common stock issued and outstanding
Warrants Issued Year		2014
Number of Warrants		307
Warrant Exercise Price		$ 11.75
Expiration date		May 09, 2019
Liability | Common Stock | Derivative with Exercise Price Two
Warrants to purchase common stock issued and outstanding
Warrants for purchase of common stock (in shares)		307	537
Liability | Warrants. | Derivative with Exercise Price Two
Fair value of warrants
Expected volatility (as a percent)		109.00%	82.00%
Risk-free interest rate (as a percent)		2.09%	1.91%
Expected term (in years)		1 year 1 month 6 days	1 year 4 months 24 days