Stock-Based Compensation - Additional Information (Detail) - USD ($)	3 Months Ended				9 Months Ended
	Sep. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employees purchased, value	$ 118,471	$ 106,001	$ 78,732	$ 56,739
Stock-based compensation expense					$ 4,200,064	$ 1,865,520
2019 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Employees purchased, shares					24,100
Employees purchased, value					$ 200,000
Stock-based compensation expense	28,811,000,000				$ 300,000
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting Period					4 years
Stock option expiration Period					10 years
Unrecognized compensation cost, stock options	$ 11,300,000				$ 11,300,000
Unrecognized stock-based compensation expense, period for recognition					2 years 7 months 6 days
Number of Stock Options, Granted					1,075,700
Stock options granted, weighted-average exercise price					$ 15.07
Weighted-average grant date fair value of stock options granted					$ 12.38
Restricted Stock [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation expense, period for recognition					1 year 2 months 12 days
Unvested restricted stock, shares	94,181				94,181
Unrecognized compensation expense	$ 300,000				$ 300,000
Common stock issued as result of vesting of restricted stock					60,545
Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting Period					4 years
Unrecognized stock-based compensation expense, period for recognition					3 years 4 months 24 days
Unvested restricted stock, shares	207,529				207,529
Unrecognized compensation expense	$ 2,500,000				$ 2,500,000
Common stock issued as result of vesting of restricted stock					3,750
Shares granted					196,279