CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Common stock, par value per share	$ 0.000666	$ 0.000666
Common stock, shares authorized	3,950,000,000us-gaap_CommonStockSharesAuthorized	3,950,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	82,480,600us-gaap_CommonStockSharesIssued	70,188,937us-gaap_CommonStockSharesIssued
Common stock, shares outstanding	82,480,600us-gaap_CommonStockSharesOutstanding	70,188,937us-gaap_CommonStockSharesOutstanding
Preferred stock, shares authorized	50,000,000us-gaap_PreferredStockSharesAuthorized	50,000,000us-gaap_PreferredStockSharesAuthorized
7.5% Series A-1 Convertible Preferred Stock
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	24,362	24,362
Preferred stock, shares outstanding	24,362	24,362
7.5% Series A-2 Convertible Preferred Stock
Preferred stock, par or stated value per share	$ 0.000666	$ 0.000666
Preferred stock, shares authorized	250,000	250,000
Preferred stock, shares issued	1,610	1,610
Preferred stock, shares outstanding	1,610	1,610
7.5% Series B Convertible Preferred Stock
Preferred stock, par or stated value per share	$ 0.000666	$ 0.000666
Preferred stock, shares authorized	600,000	600,000
Preferred stock, shares issued	22,676	24,193
Preferred stock, shares outstanding	22,676	24,193

Face amount or stated value per share of common stock.

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