Stockholders' Equity and Redeemable Convertible Preferred Stock (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Common stock shares issued	2,539,859	1,505,773
Stock Options 2014 Plan [Member]
Stock based compensation	$ 200	$ 12,600
Vested options outstanding	183,410
Fair value of stock options granted	$ 35,636
Weighted average remaining vesting period	4 days
Estimated future stock-based compensation expense	$ 4
Stock Options 2013 Plan [Member]
Vested options outstanding	105,610
Fair value of stock options granted	$ 41,758
Stock Options 2012 Plan [Member]
Vested options outstanding	360
Fair value of stock options granted	$ 161
Series K Preferred Stock [Member]
Preferred stock, shares issued	1,240	0
Preferred stock, shares outstanding	1,240	0
Dividend on preferred paid	$ 323,000
Series J Convertible Preferred Stock [Member]
Convertible Preferred Stock		10,000,000
Preferred Stock converted into common stock during period		526,315
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series I Convertible Preferred Stock [Member]
Preferred stock, shares issued	35,514	35,514
Preferred stock, shares outstanding	35,514	35,514
Series H Convertible Preferred Stock [Member]
Preferred stock, shares issued	381,967	439,043
Preferred stock, shares outstanding	381,967	439,043
Series F-1 Convertible Preferred Stock [Member]
Convertible Preferred Stock		156,250
Preferred Stock converted into common stock during period		8,223
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Series D-1 Convertible Preferred Stock [Member]
Convertible Preferred Stock		1,281,288
Preferred Stock converted into common stock during period		674,362
Convertible Preferred Stock exchanged		1,222,857
Preferred stock, shares issued	834	834
Preferred stock, shares outstanding	834	834
Series D Preferred Stock [Member]
Preferred stock, shares issued	4,725	4,725
Preferred stock, shares outstanding	4,725	4,725
Series C Convertible Preferred Stock [Member]
Convertible Preferred Stock			229,336
Preferred Stock converted into common stock during period			229,336
Convertible Preferred Stock exchanged			12,070
Preferred stock, shares issued	0	1
Preferred stock, shares outstanding	0	1
Series A Preferred Stock [Member]
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Restricted Stock Awards One [Member]
Stock based compensation		$ 11,400
Vested options outstanding		264
Fair value of stock options granted	$ 28,000
Restricted Stock Awards [Member]
Stock based compensation	$ 2	$ 37
Common stock shares issued	42,106
Vested options outstanding	262	395