Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Related parties	$ 1,000	$ 1,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	62,316,502	59,451,836
Common stock, shares outstanding	62,316,502	59,451,836
Series C Convertible Preferred Stock [Member]
Preferred stock, par value	$ 50.00	$ 50.00
Preferred stock, shares authorized	14,400	14,400
Preferred stock, shares issued	10,434	10,434
Preferred stock, shares outstanding	10,434	10,434
Series D Convertible Preferred Stock [Member]
Preferred stock, par value	$ 50.00	$ 50.00
Preferred stock, shares authorized	7,000	7,000
Preferred stock, shares issued	250	250
Preferred stock, shares outstanding	250	250
Preferred stock shares vested
Other Series Preferred Stock [Member]
Preferred stock, par value	$ 50.00	$ 50.00
Preferred stock, shares authorized	974,260	974,260
Preferred stock, shares issued