PIPE TRANSACTION - Activity Related to Series A Preferred Stock (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance		$ 0
Ending Balance	53,998	0
Series A Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance	52,380
Dividends recorded for March 2015	453
Ending Balance	53,998
Issuance Costs | Series A Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion of discount	23
Warrant Value | Series A Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion of discount	19
Beneficial Conversion Feature | Series A Preferred Stock
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion of discount	$ 1,123