v3.19.3
Property and Equipment, net - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Property, Plant and Equipment [Abstract]        
Depreciation and amortization expense $ 278,182 $ 391,246 $ 814,984 $ 1,169,801