Stock Options and Restricted Stock - Summary of Activity for Restricted Stock Programs (Detail) - $ / shares		3 Months Ended						9 Months Ended			12 Months Ended
		Sep. 30, 2022		Jun. 30, 2022		Mar. 31, 2022		Sep. 30, 2022		Sep. 30, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, ending balance		744,306						744,306
Grant price per share, cancelled, lower limit						$ 4.89
Grant price per share, cancelled, upper limit				$ 7.25		$ 7.25
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares, beginning balance		744,687	[1]	745,270	[1]	493,326	[1]	493,326	[1]	416,140	416,140
Number of shares, granted						383,925		383,925		163,561	258,120
Number of shares, cancelled		(381)		(583)		(5,747)					(21,940)
Number of shares, vested	[2]					(126,234)					(158,994)
Number of shares, ending balance	[1]			744,687		745,270					493,326
Grant price per share, lower range limit beginning balance		$ 4.89	[1]	$ 4.89	[1]	$ 4.89	[1]	$ 4.89	[1]	$ 4.39	$ 4.39
Grant price per share, upper range limit beginning balance		8.40	[1]	8.40	[1]	8.40	[1]	8.40	[1]	7.25	7.25
Grant price per share, granted, lower limit											6.79
Grant price per share, granted, upper limit						7.68					8.40
Grant price per share, cancelled, lower limit		4.89		4.89		4.89					4.89
Grant price per share, cancelled, upper limit		8.40		8.40		8.40					7.25
Grant price per share, vested, lower limit	[2]					4.89					4.39
Grant price per share, vested, upper limit	[2]					7.25					7.25
Grant price per share, lower range limit ending balance		4.89		4.89	[1]	4.89	[1]	4.89			4.89	[1]
Grant price per share, upper range limit ending balance		8.40		8.40	[1]	8.40	[1]	8.40			8.40	[1]
Weighted average grant price beginning balance		7.34	[1]	7.34	[1]	6.87	[1]	6.87	[1]	$ 6.24	6.24
Weighted average grant price, granted						7.68					7.38
Weighted average grant price, cancelled		7.76		7.58		7.33					5.98
Weighted average grant price, vested	[2]					6.55					6.16
Weighted average grant price, ending balance		$ 7.34		$ 7.34	[1]	$ 7.34	[1]	$ 7.34			$ 6.87	[1]

[1] The aggregate fair value of the restricted stock was $5.2 million as of September 30, 2022. The remaining vesting period was 2.4 years at September 30, 2022.

[2] The aggregate fair value of the restricted stock vested was $0 and $1.0 million for the three and nine months ended September 30, 2022 and was $1.1 million for the year ended December 31, 2021.