Condensed Consolidated Balance Sheets [Parenthetical] (USD $)	Jun. 30, 2012	Dec. 31, 2011
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	413,388
Preferred stock, shares outstanding	0	413,388
Preferred stock, liquidation preference per share (in dollars)	$ 0	$ 8,267,760
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	18,053,995	5,061,399
Common stock, shares outstanding	18,053,995	5,061,399