Financing (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Debt Conversion [Line Items]
Preferred Stock, Face Value	$ 5,164	$ 5,164
Preferred Stock, Carrying Value	5,164	5,164
Preferred Stock, Embedded Conversion Feature	159	296
Preferred Stock, Common Stock Shares (in shares)	26,617,345	26,617,345
Series C Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Preferred Stock, Face Value	4,816	4,816
Preferred Stock, Carrying Value	4,816	4,816
Preferred Stock, Embedded Conversion Feature	148	276
Preferred Stock, Common Stock Shares (in shares)	24,823,015	24,823,015
Series D Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Preferred Stock, Face Value	348	348
Preferred Stock, Carrying Value	348	348
Preferred Stock, Embedded Conversion Feature	$ 11	$ 20
Preferred Stock, Common Stock Shares (in shares)	1,794,330	1,794,330