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Equity Incentive Plan - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected future compensation expense	$ 1,295		$ 1,295
Weighted average remaining life of grants related to unvested awards not yet recognized			2 years 4 months 13 days
Restricted Stock [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vesting service period			3 years
Restricted Stock [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vesting service period			5 years
2014 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares under stock option plan authorized for issuance					375,000
Number of shares available for grant under stock option plan	60,049		60,049
Options granted			0	0
Share based compensation expense	$ 191	$ 153
Expected future compensation expense	$ 1,296		$ 1,296
Weighted average remaining life of grants related to unvested awards not yet recognized			2 years 4 months 13 days