Leases - Summary of Lease Cost and Information Related to the Right-of-Use Assets and Operating Lease Liabilities (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Lease cost
Average rent expense	$ 28,357	$ 62,085	$ 56,715	$ 124,140
Other information
Cash paid for amounts included in the measurement of operating lease liabilities	$ 29,145	$ 62,154	$ 58,290	$ 124,308
The weighted average remaining lease term and discount rate
Weighted-average remaining lease term - operating leases	1 year 29 days		1 year 29 days
Weighted-average discount rate - operating leases	13.28%		13.28%