Consolidated Balance Sheets [Parenthetical] (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Series A Preferred Stock [Member]	Dec. 31, 2011 Series A Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]	Dec. 31, 2011 Series B Preferred Stock [Member]
Preferred stock, par value (in dollars per share)			$ 0.001	$ 0.001	$ 0.001	$ 0.001
Preferred stock, authorized			0	13,888,889	0	13,888,889
Preferred stock, issued			0	13,888,889	0	13,888,889
Preferred stock, outstanding			0	13,888,889	0	13,888,889
Preferred stock, liquidation preference per share (in dollars per share)				$ 1.80		$ 1.80
Accumulated preferred stock dividend (in dollars)				$ 5,412,329		$ 2,901,370
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized	25,000,000	65,000,000
Common stock, issued	16,526,885	3,329,666
Common stock, outstanding	16,526,885	3,329,666