Consolidated Balance Sheets - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 67,493,047	$ 27,293,798
Accounts receivable	98,736	56,694
Prepaid expenses and other assets	789,285	369,259
Total current assets	68,381,068	27,719,751
Property and equipment, net	2,690,579	840,387
Other assets	374,004	336,708
Total Assets	71,445,651	28,896,846
Current liabilities:
Accounts payable	1,040,868	747,799
Accrued expenses	1,934,411	1,841,808
Current portion of long-term debt	5,225,818	1,898,548
Total current liabilities	8,201,097	4,488,155
Long-term debt, less current portion	11,246,188	13,053,117
Derivative financial instruments	3,297,077	3,006,021
Total liabilities	$ 22,744,362	$ 20,547,293
Commitments and contingencies
Stockholders’ equity
Preferred stock, $0.001 par value, 20,000,000 shares authorized, 60,600 shares outstanding at each of December 31, 2015 and 2014, designated as Series A Convertible Preferred Stock with liquidation preference of $606,000 at each of December 31, 2015 and 2014	$ 60	$ 60
Common stock, $0.0001 par value, 150,000,000 shares authorized at December 31, 2015 and 2014; 29,737,601 and 18,915,793 issued and outstanding at December 31, 2015 and 2014, respectively	2,974	1,891
Additional paid-in capital	157,585,498	89,739,511
Accumulated deficit	(108,887,243)	(81,391,909)
Total stockholders’ equity	48,701,289	8,349,553
Total Liabilities and Stockholders’ Equity	$ 71,445,651	$ 28,896,846