XML 47 R36.htm IDEA: XBRL DOCUMENT v3.7.0.1
Basis of Presentation - Additional Information (Details)
3 Months Ended 12 Months Ended
May 12, 2017
USD ($)
Mar. 31, 2017
USD ($)
Customer
Mar. 31, 2016
Customer
Dec. 31, 2016
USD ($)
Customer
Significant Accounting Policies [Line Items]        
Accumulated deficit   $ 121,422,318   $ 115,606,044
Available cash, cash equivalents and investments in short term available-for-sale securities, amount   5,400,000    
Current liabilities   10,057,344   10,020,991
Long-term liabilities   3,827,095   $ 5,389,137
Maximum | Accounting Standards Update 2016-02 | Office and Equipment Leases        
Significant Accounting Policies [Line Items]        
Gross-up amount of leases effect in balance sheets   $ 3,000,000    
Sales Revenue, Net | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Number of customers | Customer   3 3  
Sales Revenue, Net | Customer Concentration Risk | Customer One        
Significant Accounting Policies [Line Items]        
Sales revenue percentage   21.00% 32.00%  
Sales Revenue, Net | Customer Concentration Risk | Customer Two        
Significant Accounting Policies [Line Items]        
Sales revenue percentage   20.00% 22.00%  
Sales Revenue, Net | Customer Concentration Risk | Customer Three        
Significant Accounting Policies [Line Items]        
Sales revenue percentage   17.00% 9.00%  
Accounts Receivable | Customer Concentration Risk        
Significant Accounting Policies [Line Items]        
Number of customers | Customer   2   2
Accounts Receivable | Customer Concentration Risk | Customer One        
Significant Accounting Policies [Line Items]        
Sales revenue percentage   24.00%   28.00%
Accounts Receivable | Customer Concentration Risk | Customer Two        
Significant Accounting Policies [Line Items]        
Sales revenue percentage   21.00%   15.00%
Subsequent Event | Sales Agreement        
Significant Accounting Policies [Line Items]        
Net proceeds from issuance of common stock $ 9,600,000      
Subsequent Event | Sales Agreement | Cantor Fitzgerald & Co        
Significant Accounting Policies [Line Items]        
Net proceeds from issuance of common stock $ 9,600,000      
NuvoGen | Term Loan Agreement        
Significant Accounting Policies [Line Items]        
Long-term liabilities   $ 12,300,000