Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 9,164,275	$ 10,819,781
Accounts receivable	58,064	168,381
Prepaid expenses	127,084	60,041
Total current assets	9,349,423	11,048,203
Property and equipment, net	330,314	254,742
Other assets	518,775	362,081
Total assets	10,198,512	11,665,026
Current liabilities:
Accounts payable	323,366	175,679
Accrued expenses	852,994	554,691
Total current liabilities	1,176,360	730,370
Derivative financial instruments	7,486,485	8,765,628
Total liabilities	8,662,845	9,495,998
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.001 par value, 20,000,000 shares authorized, 78,100 and 95,600 shares outstanding at March 31, 2013 and December 31, 2012, respectively, designated as Series A Convertible Preferred Stock with liquidation preference of $780,100 and $956,000 at March 31, 2013 and December 31, 2012, respectively	78	96
Common stock, $0.0001 par value, 150,000,000 shares authorized, 15,516,191 and 15,478,177 issued and outstanding at March 31, 2013 and December 31, 2012, respectively	1,551	1,547
Additional paid-in capital	57,853,251	57,370,017
Deficit accumulated during development stage	(56,319,213)	(55,202,632)
Total stockholders' equity	1,535,667	2,169,028
Total liabilities and stockholders' equity	$ 10,198,512	$ 11,665,026