Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets (Details)

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Intangible Assets (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
Sep. 30, 2014
USD ($)
Sep. 30, 2015
USD ($)
product
Sep. 30, 2014
USD ($)
Sales and Marketing Expense        
Intangible assets        
Royalty fees included in sales and marketing expense $ 162,000 $ 93,000 $ 379,000 $ 238,000
Licensing Agreements        
Intangible assets        
License agreements extended period     60 days  
Minimum royalty of agreements     $ 12,500  
Milestone fee upon receiving a Phase II Small Business Innovation Research     $ 15,000  
Number of products under development | product     0  
Licensing Agreements | Minimum        
Intangible assets        
Royalty fees range under the license agreements     1.00%  
Licensing Agreements | Maximum        
Intangible assets        
Royalty fees range under the license agreements     3.00%  
Royalty stack cap for royalties paid to more than one licensor for sales of the same product     3.75%