Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Schedule of Future Minimum Rental Payments for Operating Leases (Detail)

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Commitments and Contingencies - Schedule of Future Minimum Rental Payments for Operating Leases (Detail)
Dec. 31, 2018
USD ($)
Operating Leases Future Minimum Payments Due [Abstract]  
2019 $ 457,585
Total $ 457,585