Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Operating Lease, Weighted Average Discount Rate, Percent	14.70%
Operating Leases, Rent Expense	$ 667,618	$ 664,098
Restructuring Reserve	$ 400,000
Operating Lease, Weighted Average Remaining Lease Term	3 years
Waltham Lease [Member]
Operating Leased Assets [Line Items]
Operating lease, renewal term	5 years
Woburn Lease [Member]
Operating Leased Assets [Line Items]
Operating lease, renewal term	5 years
Month Rent [Member] | Waltham Lease [Member]
Operating Leased Assets [Line Items]
Operating Lease, Payments	$ 41,074
Month Rent [Member] | Woburn Lease [Member]
Operating Leased Assets [Line Items]
Operating Lease, Payments	$ 13,846