Financing (Details 4) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Debt Conversion [Line Items]
Gain (loss) from change in fair value of derivative liability	$ (17)	$ 29	$ (27)	$ 273
Series C Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Gain (loss) from change in fair value of derivative liability	(16)	27	(26)	255
Series D Convertible Preferred Stock [Member]
Debt Conversion [Line Items]
Gain (loss) from change in fair value of derivative liability	(1)	2	(1)	18
Debentures 2006 Series [Member]
Debt Conversion [Line Items]
Gain (loss) from change in fair value of derivative liability	$ 0	$ 0	$ 0	$ 0