CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2013	Dec. 31, 2012
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	57,988,100	48,466,267
Common stock, shares outstanding	57,988,100	48,466,267
Preferred stock, shares authorized	50,000,000	50,000,000
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	23,499	23,499
Preferred stock, shares outstanding	23,499	23,499
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	3,471	5,271
Preferred stock, shares outstanding	3,471	5,271
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	27,329	28,399
Preferred stock, shares outstanding	27,329	28,399