CONDENSED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Stockholders' Equity:
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	140,000,000	140,000,000
Common Stock, shares issued (in shares)	107,050,609	106,206,488
Common Stock, shares outstanding (in shares)	107,050,609	106,206,488