CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 43,995,642	$ 27,293,798
Accounts receivable	59,391	56,694
Prepaid expenses and other assets	418,040	369,259
Total current assets	44,473,073	27,719,751
Property and equipment, net	1,022,534	840,387
Other assets	336,708	336,708
Total Assets	45,832,315	28,896,846
Current liabilities:
Accounts payable	484,709	747,799
Accrued expenses	1,755,803	1,841,808
Current portion of long-term debt	3,064,734	1,898,548
Total current liabilities	5,305,246	4,488,155
Long-term debt, less current portion	12,011,645	13,053,117
Derivative financial instruments	4,952,749	3,006,021
Total Liabilities	22,269,640	20,547,293
Commitments and contingencies (Note 8)
Stockholders' equity
Preferred stock, $0.001 par value, 20,000,000 shares authorized; 60,600 shares outstanding at March 31, 2015 and December 31, 2014: designated as Series A Convertible Preferred Stock with liquidation preference of $606,000 at March 31, 2015 and December 31, 2014	60	60
Common stock, $0.0001 par value, 150,000,000 shares authorized; 24,307,291 and 18,902,782 shares issued and outstanding at March 31, 2015 and December 31,2014, respectvely	2,431	1,891
Additional paid-in capital	112,132,535	89,739,511
Accumulated deficit	(88,572,351)	(81,391,909)
Total stockholders' equity	23,562,675	8,349,553
Total liabilities and stockholders' equity	$ 45,832,315	$ 28,896,846