Equity Incentive Plan - Summary of Company's Outstanding Restricted Common Stock (Detail) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) $ / shares shares
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		90,880
Expected future remaining compensation expense \| $	$ 1,275	$ 1,275
Expected future compensation expense, restricted shares remaining vesting period		2 years 6 months 7 days
Restricted Shares Awarded on March 3, 2021 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		2,095
Date of Award		Mar. 03, 2021
Expected future remaining compensation expense \| $	10	$ 10
Expected future compensation expense, restricted shares remaining vesting period		3 months
Restricted Shares Awarded on March 3, 2022 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		3,983
Date of Award		Mar. 03, 2022
Expected future remaining compensation expense \| $	61	$ 61
Expected future compensation expense, restricted shares remaining vesting period		1 year 3 months
Restricted Shares Awarded on March 14, 2023 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		8,702
Date of Award		Mar. 14, 2023
Expected future remaining compensation expense \| $	145	$ 145
Expected future compensation expense, restricted shares remaining vesting period		2 years 3 months
Restricted Shares Awarded on March 14, 2023 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		8,817
Date of Award		Mar. 14, 2023
Expected future remaining compensation expense \| $	47	$ 47
Expected future compensation expense, restricted shares remaining vesting period		3 months
Restricted Shares Awarded on March 12, 2024 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		18,982
Date of Award		Mar. 12, 2024
Expected future remaining compensation expense \| $	241	$ 241
Expected future compensation expense, restricted shares remaining vesting period		3 years 3 months
Restricted Shares Awarded on March 12, 2024 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		9,185
Date of Award		Mar. 12, 2024
Expected future remaining compensation expense \| $	88	$ 88
Expected future compensation expense, restricted shares remaining vesting period		1 year 3 months
Restricted Shares Awarded on September 9, 2024 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		858
Date of Award		Sep. 09, 2024
Expected future remaining compensation expense \| $	13	$ 13
Expected future compensation expense, restricted shares remaining vesting period		2 years
Restricted Shares Awarded on March 11, 2025 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		20,158
Date of Award		Mar. 11, 2025
Expected future remaining compensation expense \| $	372	$ 372
Expected future compensation expense, restricted shares remaining vesting period		4 years 3 months
Restricted Shares Awarded on March 11, 2025 [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Granted		18,100
Date of Award		Mar. 11, 2025
Expected future remaining compensation expense \| $	$ 298	$ 298
Expected future compensation expense, restricted shares remaining vesting period		2 years 3 months
Restricted Stock [Member]
Schedule Of Nonvested Stock Option Activity [Line Items]
Number of Restricted Shares, Nonvested at beginning of period	96,692	90,331
Number of Restricted Shares, Granted	0	39,587
Number of Restricted Shares, Vested	(1,492)	(34,718)
Number of Restricted Shares, Forfeited	(4,320)	(4,320)
Number of Restricted Shares, Nonvested at end of period	90,880	90,880
Weighted Average Grant Date Fair Value, Nonvested at beginning of period \| $ / shares	$ 19.69	$ 19.14
Weighted Average Grant Date Fair Value, Granted \| $ / shares	0	21.46
Weighted Average Grant Date Fair Value, Vested \| $ / shares	17.95	20.21
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	19.67	19.67
Weighted Average Grant Date Fair Value, Nonvested at end of period \| $ / shares	$ 19.72	$ 19.72

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
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-Name Accounting Standards Codification
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-Publisher FASB
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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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