Revenue - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) Customer	Jun. 30, 2020 USD ($) Customer	Jun. 30, 2021 USD ($) Customer	Jun. 30, 2020 USD ($) Customer	Dec. 31, 2020 USD ($)
Revenue Recognition [Line Items]
Number of customer | Customer	2	3	2	3
Percentage of revenue	45.40%	52.30%	46.10%	53.20%
Deferred contract costs	$ 100,000		$ 100,000		$ 100,000
Deferred revenue	253,846		253,846		$ 50,454
Selling, General and Administrative Expense [Member]
Revenue Recognition [Line Items]
Amortized deferred contract costs	$ 50,000	$ 52,500	$ 100,000	$ 108,750