Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Components of Intangible Assets (Details)

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Intangible Assets - Components of Intangible Assets (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Intangible assets consist of:          
Less: accumulated amortization $ (431,542)   $ (431,542)   $ (399,509)
Intangible assets, net 743,390   743,390   678,082
Amortization of Intangible Assets 16,000 $ 11,000 32,033 $ 22,710  
Licensing Agreements          
Intangible assets consist of:          
Finite-lived intangible assets, gross 907,545   $ 907,545   897,594
Licensing Agreements | Minimum          
Intangible assets consist of:          
Amortization period of intangible assets     17 years    
Licensing Agreements | Maximum          
Intangible assets consist of:          
Amortization period of intangible assets     20 years    
Patents          
Intangible assets consist of:          
Finite-lived intangible assets, gross $ 267,387   $ 267,387   $ 179,997
Amortization period of intangible assets     3 years    
Non-amortizable pending costs     $ 267,387