Operating Leases -Schedule of Supplemental Balance Sheet related To Lease (Detail) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Disclosure of Operating Leases [Line Items]
Operating lease right-of-use assets	$ 730,284	$ 793,252
Other current liabilities	306,677	300,518
Operating lease liabilities, net of current portion	568,421	$ 647,532
Total operating lease liabilities	$ 875,098
Weighted average remaining lease term			2 years 8 months 12 days
Weighted average discount rate	4.81%