Annual report pursuant to Section 13 and 15(d)

Loans Payable - Term Loans (Details)

v3.3.1.900
Loans Payable - Term Loans (Details) - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Long Term Debt      
Interest rate (as a percent) 6.50%    
Amortization of debt discount and issuance costs $ 124,572 $ 25,417  
Carrying value 18,185,898 1,692,884  
Interest expense 334,365 70,650  
Minimum net cash proceeds from strategic partnerships as a condition to extend the date for payments 50,000,000    
Fees      
Facility fee     $ 175,000
Debt Instrument Amendment Fee 20,000    
Loan and security agreement      
Long Term Debt      
Face amount     35,000,000
Term Loan A      
Long Term Debt      
Face amount     2,000,000
Deferred financing fees     106,545
Debt discount     (225,988)
Term Loan B      
Long Term Debt      
Face amount 16,500,000    
Deferred financing fees 87,500    
Debt discount (44,058)    
Term Loan C      
Long Term Debt      
Face amount 16,500,000    
Term Loans A and B      
Long Term Debt      
Gross proceeds 18,500,000    
Debt discount (168,501)    
Debt issuance costs (145,601)    
Carrying value 18,185,898    
Interest expense $ 164,667 $ 36,833  
Fees      
Prepayment fee as a percent of total amount prepaid if prepayment occurs prior to the first anniversary of the funding 3.00%    
Prepayment fee as a percent of total amount prepaid if prepayment occurs between the first and second anniversary of the funding 2.00%    
Prepayment fee as a percent of total amount prepaid if prepayment occurs on or after the second anniversary of the funding 1.00%    
Minimum      
Fees      
Final payment fee due upon that last payment date of the amounts borrowed under the agreement subject to adjustment (as a percent) 6.10%    
Maximum      
Fees      
Final payment fee due upon that last payment date of the amounts borrowed under the agreement subject to adjustment (as a percent) 7.00%    
Three Point      
Fees      
Facility fee     $ 65,000
Three Point | Term Loan B      
Fees      
Facility fee $ 87,500    
Three Point | Term Loan C      
Fees      
Additional fee if draws are made on term loans $ 87,500    
Warrants      
Warrants      
Exercise price (in dollars per share) $ 10.6190   $ 5.8610
Warrants | Common Stock | Term Loan B      
Warrants      
Number of shares called upon exercise of warrants (in shares) 34,961    
Warrants | Common Stock | Maximum      
Warrants      
Number of shares called upon exercise of warrants (in shares) 20,161    
Warrants | Common Stock | Lenders and Placement Agent      
Warrants      
Number of shares called upon exercise of warrants (in shares)     7,678