Consolidated Balance Sheets (USD $)
Mar. 31, 2015
Dec. 31, 2014
Current assets    
Cash and equivalents $ 209,118,117 $ 99,113,378
Receivables 14,217,911 2,350,052
Prepaid expenses 2,518,301 3,387,883
Total current assets 225,854,329 104,851,313
Furniture, fixtures and equipment, net 140,793 113,146
Deposits 346,228 346,228
Total assets 226,341,350 105,310,687
Current liabilities    
Accounts payable 10,851,558 11,893,790
Accrued expenses 524,785 1,002,496
Accrued payroll and benefits 564,253 1,595,882
Current portion of long-term debt 5,021,005 3,593,536
Total current liabilities 16,961,601 18,085,704
Deferred revenue 11,325,946 11,325,946
Long-term debt 13,634,979 14,878,114
Total liabilities 41,922,526 44,289,764
Commitments and contingencies (Note 4)      
Shareholders' Equity    
Preferred stock; $.001 par value; 5,000,000 shares authorized; no shares issued or outstanding at December 31, 2014 and March 31, 2015      
Common stock; $.001 par value; 80,000,000 shares authorized; 37,474,944 and 43,587,346 issued and outstanding at December 31, 2014 and March 31, 2015, respectively 43,588 37,475
Additional paid-in capital 429,701,219 288,892,951
Accumulated deficit (245,325,983) (227,909,503)
Total shareholders’ equity 184,418,824 61,020,923
Total liabilities and shareholders’ equity $ 226,341,350 $ 105,310,687