Earnings per Common Share - Computation of Basic and Diluted Earnings per Common Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2025	Mar. 31, 2024
Basic
Net income	$ 10,168	$ 6,360
Less allocation of earnings and dividends to participating securities	44	227
Net income available to common shareholders-basic	$ 10,124	$ 6,133
Weighted average common shares outstanding	15,488,813	15,695,963
Less average participating securities	66,711	561,344
Weighted average number of shares outstanding used in the calculation of basic earnings per common share	15,422,102	15,134,619
Earnings per common share:
Basic	$ 0.66	$ 0.41
Diluted	$ 0.66	$ 0.41

Earning per share basic and diluted abstract.

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Weighted average number of common shares outstanding.

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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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This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method.

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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) from continuing operations 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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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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