Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts Receivable, Current (in dollars)	$ 0	$ 0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	5,000,000,000	5,000,000,000
Common stock, shares issued	3,345,017,232	2,106,035,882
Common stock, shares outstanding	3,345,017,232	2,106,035,882
Treasury stock, shares	2,012	2,012
Series C Convertible Preferred Stock [Member]
Convertible preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	27,000	27,000
Convertible preferred stock, shares issued	4,840	4,840
Convertible preferred stock, shares outstanding	4,840	4,840
Convertible preferred stock, liquidation value (in dollars)	4,840	4,840
Series D Convertible Preferred Stock [Member]
Convertible preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	25,000	25,000
Convertible preferred stock, shares issued	3,481	3,481
Convertible preferred stock, shares outstanding	3,481	3,481
Convertible preferred stock, liquidation value (in dollars)	$ 348	$ 348