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Loan and Security Agreement (Details) - USD ($)
1 Months Ended 3 Months Ended
Nov. 30, 2015
Mar. 31, 2016
Dec. 31, 2015
Jun. 30, 2014
Debt Instrument [Line Items]        
Line of Credit, Current   $ 181,818    
Long-term Line of Credit, Noncurrent   1,462,260    
Long-term Line of Credit   1,636,359    
Amount borrowed included in current liabilities   5,850,051 $ 5,225,818  
Amount borrowed, long-term liabilities   10,373,081 $ 11,246,188  
Secured Debt [Member]        
Debt Instrument [Line Items]        
Interest Payable   623,182    
Interest Expense, Debt   $ 345,162    
Face value of term loan       $ 15,000,000
Debt Instrument, Interest Rate, Stated Percentage       7.07%
Number of common shares that can be purchased upon exercise of warrant   42,735   85,470
Exercise price of warrants (in USD per share)       $ 3.51
Exercisable term   10 years    
Value of warrants recorded as debt discount and additional paid in capital       $ 235,857
Amortized portion of final fee upon repayment   $ 1,050,000    
Amount borrowed included in current liabilities   5,752,026    
Amount borrowed, long-term liabilities   $ 8,827,028    
Secured Debt [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Pre-payment fees (as a percent)   1.00%    
Secured Debt [Member] | Maximum        
Debt Instrument [Line Items]        
Pre-payment fees (as a percent)   3.00%    
Line of Credit [Member]        
Debt Instrument [Line Items]        
Line of Credit Facility, Maximum Borrowing Capacity $ 2,000,000      
Interest Payable   $ 7,719    
Line of Credit Facility Period for Principal and Interest Payments after Date of Advance 36 months      
Debt Instrument, Repayment of Total Amount Outstanding, Percentage 7.00%      
Interest Expense, Debt   21,179    
Future minimum principal payments        
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   181,818    
Long-term Debt, Maturities, Repayments of Principal in Year Two   545,453    
Long-term Debt, Maturities, Repayments of Principal in Year Three   545,453    
Total principal   1,636,359    
Debt Instrument, Unamortized Premium   7,719    
Long-term Debt   1,644,078    
Line of Credit [Member] | Secured Debt [Member]        
Future minimum principal payments        
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months   5,752,026    
Long-term Debt, Maturities, Repayments of Principal in Year Two   6,172,134    
Long-term Debt, Maturities, Repayments of Principal in Year Three   2,155,976    
Total principal   14,080,136    
Debt Instrument, Unamortized Discount   (124,264)    
Debt Instrument, Unamortized Premium   623,182    
Long-term Debt   $ 14,579,054    
Line of Credit [Member] | Secured Debt [Member] | Minimum [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage   7.25%