CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Common stock, par value per share $ 0.000666 $ 0.000666
Common stock, shares authorized 3,950,000,000 3,950,000,000
Common stock, shares issued 43,282,870 28,990,630
Common stock, shares outstanding 43,282,870 28,990,630
Convertible Preferred Stock [Member] | 7.5% Series A-1 Convertible Preferred Stock [Member]
   
Preferred stock, par or stated value per share $ 0.000666 $ 0.000666
Preferred stock, shares authorized 1,500,000 1,500,000
Preferred stock, shares issued 22,637 22,637
Preferred stock, shares outstanding 22,637 22,637
Convertible Preferred Stock [Member] | 7.5% Series A-2 Convertible Preferred Stock [Member]
   
Preferred stock, par or stated value per share $ 0.000666 $ 0.000666
Preferred stock, shares authorized 250,000 250,000
Preferred stock, shares issued 5,271 6,672
Preferred stock, shares outstanding 5,271 6,672
Convertible Preferred Stock [Member] | 7.5% Series B convertible preferred stock [Member]
   
Preferred stock, par or stated value per share $ 0.000666 $ 0.000666
Preferred stock, shares authorized 600,000 600,000
Preferred stock, shares issued 28,722 29,907
Preferred stock, shares outstanding 28,722 29,907