Condensed Consolidated Balance Sheet (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Accumulated depreciation, property and equipment	$ 4,384,508	$ 4,249,183
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	600,000,000	600,000,000
Common stock, shares issued	293,771,206	293,164,786
Common stock, shares outstanding	293,771,206	293,164,786