Stock Options and Restricted Stock - Summary of Activity for Stock Option Programs (Detail) - $ / shares		3 Months Ended		12 Months Ended
		Mar. 31, 2022		Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options beginning balance		1,111,687		951,669	[1]
Granted		0		317,398
Cancelled		(4,783)		(113,310)
Exercised	[2]	(23,192)		(44,070)
Number of options ending balance		1,083,712	[1]	1,111,687
Options exercisable		554,119		320,922
Exercise price per share, lower range limit beginning balance		$ 2.14		$ 2.14	[1]
Exercise price per share, upper range limit beginning balance		12.55		12.55	[1]
Exercise price per share, granted		0		6.79
Exercise price per share, lower range limit ending balance		2.14	[1]	2.14
Exercise price per share, upper range limit ending balance		12.55	[1]	12.55
Exercise price per share, option exercisable lower range limit		2.14		2.14
Exercise price per share, option exercisable upper range limit		12.55		12.55
Weighted average exercise price, beginning balance		6.41		6.41	[1]
Weighted average exercise price, granted		0		6.79
Weighted average exercise price, cancelled		5.69		6.64
Weighted average exercise price, exercised	[2]	6.53		5.58
Weighted average exercise price, ending balance		6.53	[1]	6.41
Weighted average exercise price, options exercisable		6.54		6.53
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price per share, cancelled		4.89		4.89
Exercise price per share, exercised	[2]	4.89		5.21
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price per share, cancelled		7.25		11.53
Exercise price per share, exercised	[2]	$ 7.25		$ 7.25

[1] The aggregate intrinsic value, which represents the difference between the price of the Company’s common stock at March 31, 2022 and the related exercise price of the underlying options, was $2.2 million for outstanding options and $1.1 million for exercisable options as of March 31, 2022. The remaining contractual life was 7.8 years for outstanding options and 7.3 years for exercisable options at March 31, 2022.

[2] The aggregate intrinsic value, which represents the difference between the price of the Company’s common stock at the exercise date and the related exercise price of the underlying options, was less than $0.1 million for the three months ended March 31, 2022 and 2021.