Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2018	Dec. 31, 2017
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, authorized	100,000,000	100,000,000
Common stock, issued	8,517,132	6,234,910
Common stock, outstanding	8,517,132	6,234,910
Treasury stock	12	12
Series D Convertible Preferred Stock [Member]
Preferred stock, issued	4,725	4,725
Preferred stock, outstanding	4,725	4,725
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001
Series D-1 Convertible Preferred Stock [Member]
Preferred stock, issued	834	834
Preferred stock, outstanding	834	834
liquidation preference (in dollars per share)	$ 0.0001	$ 0.0001