Stock Options and Restricted Stock - Summary of Activity for Stock Option Programs (Detail) - $ / shares		3 Months Ended						12 Months Ended
		Sep. 30, 2022		Jun. 30, 2022		Mar. 31, 2022		Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options beginning balance		1,081,609	[1]	1,083,712	[1]	1,111,687		951,669
Granted		0		0		0		317,398
Cancelled		(486)		(2,103)		(4,783)		(113,310)
Exercised	[2]	0		0		(23,192)		(44,070)
Number of options ending balance		1,081,123	[1]	1,081,609	[1]	1,083,712	[1]	1,111,687
Options exercisable		552,056						320,922
Exercise price per share, lower range limit beginning balance		$ 2.14	[1]	$ 2.14	[1]	$ 2.14		$ 2.14
Exercise price per share, upper range limit beginning balance		12.55	[1]	12.55	[1]	12.55		12.55
Exercise price per share, granted		0				0		6.79
Exercise price per share, lower range limit ending balance		2.14	[1]	2.14	[1]	2.14	[1]	2.14
Exercise price per share, upper range limit ending balance		12.55	[1]	12.55	[1]	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		6.53	[1]	6.53	[1]	6.41		6.41
Weighted average exercise price, granted						0		6.79
Weighted average exercise price, cancelled		6.07		6.37		5.69		6.64
Weighted average exercise price, exercised	[2]					6.53		5.58
Weighted average exercise price, ending balance		6.53	[1]	6.53	[1]	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		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		$ 7.25		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 September 30, 2022 and the related exercise price of the underlying options, was $0.6 million for outstanding options and $0.3 million for exercisable options as of September 30, 2022. The remaining contractual life was 7.3 years for outstanding options and 6.8 years for exercisable options at September 30, 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 $0 and less than $0.1 million for the three and nine months ended September 30, 2022 and was $0.2 million for the year ended December 31, 2021.