Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Consolidated Balance Sheets [Abstract]
Convertible preferred stock, par value per share	$ 0.01	$ 0.01
Convertible preferred stock, shares authorized	1,468,750	1,468,750
Convertible preferred stock, shares issued	73,332	73,332
Convertible preferred stock, shares outstanding	73,332	73,332
Convertible preferred stock, liquidation preference	$ 3,222,368
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	16,765,347	16,524,723
Common stock, shares outstanding	16,765,347	16,524,723