Fair Value Measurement - Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	$ 100,005,558	$ 28,277,386
Contingent consideration liability (see Note 8)	5,390,000	2,750,000
Fair Value, Measurements, Recurring [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	100,005,558	28,277,386
Contingent consideration liability (see Note 8)	5,390,000	2,750,000
Warrant liability	10,000	10,000
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	100,005,558	28,277,386
Fair Value, Measurements, Recurring [Member] | Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration liability (see Note 8)	5,390,000	2,750,000
Warrant liability	10,000	10,000
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	90,389,473	8,034,640
Money Market Funds [Member] | Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	$ 90,389,473	$ 8,034,640