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Operating Leases (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Dec. 31, 2016
May 31, 2016
Deferred Rent Credit $ 801,058   $ 801,058   $ 822,130  
Operating leases, rent expense 223,337 $ 219,983 667,507 $ 557,262    
Security deposit paid $ 52,320   $ 52,320   $ 52,320  
Rockville            
Security deposit paid           $ 52,320