Stockholders' Equity (Details Narrative) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Unamortized compensation cost	$ 7,260,000
Stock-based compensation	3,396	4
Preferred stock, shares designated	5,000,000		5,000,000
Fair value of stock options granted	$ 3,840
Series A Preferred Stock [Member]
Preferred stock, shares designated	500,000
Preferred stock, shares outstanding	0		0
Preferred stock, shares issued	0		0
Series I Preferred Stock [Member]
Preferred stock, shares outstanding	119,760
Series I Convertible Preferred Stock
Preferred stock, shares outstanding			119,760
Preferred stock, shares issued			119,760
Series H Convertible Preferred Stock [Member]
Preferred stock, shares outstanding	459,043		459,043
Preferred stock, shares issued	459,043		459,043
Series B Preferred Stock [Member]
Preferred stock, shares outstanding	1		1
Preferred stock, shares issued	1		1
Series C Convertible Preferred Stock [Member]
Preferred stock, shares outstanding	1		1
Preferred stock, shares issued	1		1
Series D Preferred Stock [Member]
Preferred stock, shares outstanding	18,000		1,227,582
Preferred stock, shares issued	18,000		1,227,582
Series F-1 Convertible Preferred Stock [Member]
Preferred stock, shares outstanding	156,250		156,250
Preferred stock, shares issued	156,250		156,250
Series D-1 Preferred [Member]
Preferred stock, shares outstanding	945,139		59,265
Preferred stock, shares issued	945,139		59,265