CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Stockholders' equity
Series A convertible preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Series A convertible preferred stock, shares authorized (in shares)	2,000,000	2,000,000
Series A convertible preferred stock, shares issued (in shares)	107,172	107,172
Series A convertible preferred stock, shares outstanding (in shares)	107,172	107,172
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	500,000,000	500,000,000
Common stock, shares issued (in shares)	91,670,192	91,670,192
Common stock, shares outstanding (in shares)	91,670,192	91,670,192