BALANCE SHEETS (UNAUDITED) (Parenthenticals) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	185,683,100	179,831,987
Common stock, shares outstanding	185,683,100	179,831,987