Preferred Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred Stock, shares authorized	7,500	7,500	7,500
Preferred Stock, shares issued	32	32	53
Preferred Stock, shares outstanding	32	32	53
Preferred Stock stated value (in dollars per share)	$ 0.0001	$ 0.0001	$ 0.0001
Accrued dividends	$ 33	$ 33	$ 40
Conversion price below this fair value of the common stock (in dollars per share)		$ 1.16
Series B-1 Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, shares authorized	100	100
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Series A-2 Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, shares authorized	7,500	7,500
Preferred Stock, shares issued	32	32
Preferred Stock, shares outstanding	32	32
Preferred Stock stated value (in dollars per share)	$ 7,500	$ 7,500
Conversion of preferred stock (in dollars per share)	$ 2.9835	$ 2.9835	$ 2.9844
Convertible preferred stock, shares issued upon conversion	2,514	2,514
Preferred stock, cumulative dividend percentage rate (per annum)		5.00%
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, shares authorized	4,000	4,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, shares authorized	5,000,000	5,000,000
Preferred Stock [Member] | Series A-2 Preferred Stock [Member]
Class of Stock [Line Items]
Number of preferred shares converted (shares)	21	21
Preferred dividends converted to common stock	$ 22	$ 22
Common stock issued upon conversion of preferred stock and dividends (shares)		(21)
Common Stock [Member]
Class of Stock [Line Items]
Common stock issued upon conversion of preferred stock and dividends (shares)	60,497	60,000