Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	4,943,941	4,943,941
Common stock, shares outstanding	4,943,929	4,943,929
Treasury stock, shares	12	12
Series I Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued
Preferred stock, shares outstanding
liquidation preference (in dollars per share)	$ 167	$ 167
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued
Preferred stock, shares outstanding
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series C Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued
Preferred stock, shares outstanding
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series D Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued	4,725	4,725
Preferred stock, shares outstanding	4,725	4,725
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series D-1 Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued	834	834
Preferred stock, shares outstanding	834	834
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series F-1 Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued
Preferred stock, shares outstanding
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series H Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued		381,967
Preferred stock, shares outstanding		381,967
liquidation preference (in dollars per share)	$ 83.50	$ 83.50
Series J Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares issued
Preferred stock, shares outstanding
liquidation preference (in dollars per share)	$ 83.50	$ 0.0001
Series K Convertible Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001		$ 0.0001
Preferred stock, shares issued			1,240
Preferred stock, shares outstanding			1,240
liquidation preference (in dollars per share)	$ 1,000		$ 1,000