Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Service Agreements (Details)

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Commitments and Contingencies - Service Agreements (Details) - USD ($)
3 Months Ended
Aug. 06, 2015
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2011
Commitments and Contingencies        
Term of agreement 5 years      
Commitment extension period   18 months    
Amount required to pay for execution of the agreement       $ 151,318
License fees paid   $ 419,000 $ 317,000