Leases - Summary of Lease Cost and Information Related to the Right-of-Use Assets and Operating Lease Liabilities (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lease cost
Average rent expense	$ 28,357	$ 62,086	$ 85,072	$ 186,226
Other information
Cash paid for amounts included in the measurement of operating lease liabilities	$ 29,625	$ 62,634	$ 87,915	$ 186,942
The weighted average remaining lease term and discount rate
Weighted-average remaining lease term – operating leases	9 months 29 days		9 months 29 days
Weighted-average discount rate – operating leases	13.28%		13.28%