Earnings Per Share - Calculation of Basic Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income	$ 5,682	$ 5,359	$ 6,001	$ 6,466	$ 11,041	$ 12,467
Less: distributed earnings allocated to participating securities	(36)		(31)		(72)	(62)
Less: undistributed earnings allocated to participating securities	(32)		(35)		(57)	(69)
Net earnings available to common shareholders	$ 5,614		$ 5,935		$ 10,912	$ 12,336
Weighted average common shares outstanding including participating securities	13,681,501		13,632,440		13,676,333	13,624,094
Less: average unvested restricted shares	(164,228)		(150,065)		(160,367)	(143,163)
Weighted average common shares outstanding	13,517,273		13,482,375		13,515,966	13,480,931
Basic earnings per share	$ 0.42		$ 0.44		$ 0.81	$ 0.92
Diluted earnings per share	$ 0.42		$ 0.44		$ 0.81	$ 0.92

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.

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