Stock-Based Compensation - Summary of Stock Options Activity (Detail) - USD ($)	3 Months Ended	12 Months Ended
Mar. 31, 2022	Dec. 31, 2021
Stock Option Grants
Beginning Balance	599,383
Exercised	(129,437)
Forfeited	(18,247)
Ending Balance	451,699	599,383
Exercisable at March 31, 2022	177,546
Unrecognized compensation cost (inclusive of directors' options)	$ 885,607
Weighted Average Exercise Price
Beginning Balance	$ 13.80
Exercised	14.38
Forfeited	16.26
Ending Balance	13.53	$ 13.80
Exercisable at March 31, 2022	$ 14.61
Weighted Average Remaining Contractual Term and Aggregate Intrinsic Value
Weighted Average Remaining Contractual Term	7 years 9 months	8 years 6 months
Weighted Average Remaining Contractual Term, Exercisable	7 years
Aggregate Intrinsic Value, Outstanding	$ 5,817,936
Aggregate Intrinsic Value, Exercisable	$ 2,095,529
Stock Options [Member]
Stock Option Grants
Weighted average remaining recognition period (years)	2 years 1 month 17 days

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Amount of cost to be recognized for option under share-based payment arrangement.