Stock Options and Restricted Stock - Summary of Activity for Unvested Options Outstanding (Detail) - $ / shares	3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Number of options beginning balance	262,260	262,260	513,423	513,423
Number of options, granted	0	0	0		0
Number of options, cancelled	0	0	(2,951)
Number of options, vested	0	0	(248,212)
Number of options ending balance	262,260	262,260	262,260	262,260	513,423
Exercise price per share beginning balance, Lower limit	$ 4.89	$ 4.89	$ 4.89	$ 4.89
Exercise price per share beginning balance, Upper limit	7.25	7.25	7.25	7.25
Exercise price per share, Cancelled, Lower limit			4.89
Exercise price per share, Cancelled, Upper limit	0	0	7.25
Exercise price per share, Vested, Lower limit			4.89
Exercise price per share, Vested, Upper limit	0	0	7.25
Exercise price per share ending balance, Lower limit	4.89	4.89	4.89	4.89	$ 4.89
Exercise price per share ending balance, Upper limit	7.25	7.25	7.25	7.25	7.25
Weighted average exercise price	6.49	6.49	6.52	6.52
Weighted average exercise price, cancelled	0	0	5.53
Weighted average exercise price, vested	0	0	6.55
Weighted average exercise price	$ 6.49	$ 6.49	$ 6.49	$ 6.49	$ 6.52