CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Supplemental Disclosure of Noncash Financing Activities:
Class of Warrant or Right, Outstanding	298
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.504
Additions To Debt Instrument Unamortized Discount	$ 33
Maximum [Member]
Supplemental Disclosure of Noncash Financing Activities:
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 1.595
Minimum [Member]
Supplemental Disclosure of Noncash Financing Activities:
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.504
Stock options
Supplemental Disclosure of Noncash Financing Activities:
Equity based employee compensation granted		24
Common stock withheld in exercise costs in shares		16
Common stock withheld in exercise costs		$ 32
Withholding of exercise cost in shares		2
Minimum statutory withholding payroll taxes withheld		$ 4
Common Stock issued upon exercise		6
Restricted Stock Unit
Supplemental Disclosure of Noncash Financing Activities:
Equity based employee compensation granted		829
Common stock withheld in exercise costs in shares		4
Common stock withheld in exercise costs		$ 7
Withholding of exercise cost in shares		315
Minimum statutory withholding payroll taxes withheld		$ 525
Common Stock issued upon exercise		510