v3.19.3
Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($)
Sep. 30, 2019
Dec. 31, 2018
Accrued Liabilities, Current [Abstract]    
Accrued compensation expenses $ 1,969,293 $ 1,832,630
Accrued professional services 206,157 76,224
Accrued royalties 80,096 119,630
Accrued other 1,176,455 871,645
Total $ 3,432,001 $ 2,900,129