Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 27,799,387	$ 10,819,781
Accounts receivable	69,566	168,381
Prepaid expenses and other assets	129,393	60,041
Total current assets	27,998,346	11,048,203
Property and equipment, net	740,307	254,742
Other assets	411,912	362,081
Total assets	29,150,565	11,665,026
Current liabilities:
Accounts payable	158,982	175,679
Accrued expenses	1,054,096	554,691
Current portion of long-term debt	147,618
Total current liabilities	1,360,696	730,370
Long-term debt, less current portion	370,431
Derivative financial instruments	6,281,284	8,765,628
Total liabilities	8,012,411	9,495,998
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred stock, $0.001 par value, 20,000,000 shares authorized, 60,600 and 95,600 shares outstanding at September 30, 2013 and December 31, 2012, respectively, designated as Series A Convertible Preferred Stock with liquidation preference of $606,000 and $956,000 at September 30, 2013 and December 31, 2012, respectively	60	96
Common stock, $0.0001 par value, 150,000,000 shares authorized,18,891,949 and 15,478,177 issued and outstanding at September 30, 2013 and December 31, 2012, respectively	1,889	1,547
Additional paid-in capital	87,141,485	57,370,017
Deficit accumulated during development stage	(66,005,280)	(55,202,632)
Total stockholders' equity	21,138,154	2,169,028
Total liabilities and stockholders' equity	$ 29,150,565	$ 11,665,026