Property, Equipment and Leasehold Improvements - Schedule of Property, Equipment and Leasehold Improvements (Details) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Property Plant And Equipment [Line Items]
Property, equipment and leasehold improvements, gross	$ 17,072,870	$ 11,720,272
Less: accumulated depreciation and amortization	(5,360,467)	(3,264,861)
Property, equipment and leasehold improvements, net	11,712,403	8,455,411
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property, equipment and leasehold improvements, gross	10,677,953	8,045,179
Office Equipment
Property Plant And Equipment [Line Items]
Property, equipment and leasehold improvements, gross	1,388,459	865,888
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property, equipment and leasehold improvements, gross	$ 5,006,458	$ 2,809,205

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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