Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Convertible preferred stock, par value	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	1,468,750	1,468,750
Convertible preferred stock, issued	73,332	284,844
Convertible preferred stock, outstanding	73,332	284,844
Convertible preferred stock, liquidation preference	$ 3,222,368
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	18,750,000	18,750,000
Common stock, issued	10,577,632	6,563,076
Common stock, outstanding	10,577,632	6,563,076