Commitments and Contingencies - Additional Information (Detail)	1 Months Ended	6 Months Ended
	Nov. 30, 2017 ft²	Jun. 30, 2018 USD ($) ft²	Jun. 30, 2017 USD ($)
Loss Contingencies [Line Items]
Total operating leases rent expense | $		$ 58,662	$ 102,442
Non-cancellable future minimum operating lease payments | $		$ 366,957
Cincinnati, Ohio [Member]
Loss Contingencies [Line Items]
Area of lease property | ft²		7,580
Lease expiration date		Jul. 31, 2021
Dexter, MI [Member]
Loss Contingencies [Line Items]
Area of lease property | ft²	687
Lease expiration date	Oct. 31, 2019