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v3.25.3

Employee Benefits - Additional information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Mar. 05, 2025 | Dec. 31, 2024
Defined Benefit Plan, Plan Assets, Contributions by Employer | $ 68,000 | $ 63,000 | $ 187,000 | $ 176,000 |  |
Deferred Compensation Liability Current and Noncurrent | 2,629,000 |  | 2,629,000 |  |  | $ 2,392,000
Salary Continuation Plan [Member] | Supplemental Employee Retirement Plan [Member] |  |  |  |  |  |
Liability, Defined Benefit Plan | $ 791,000 |  | $ 791,000 |  |  | 827,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.00% |  | 5.00% |  |  |
Annual benefit |  |  |  |  | $ 64,817,000 |
Defined Contribution Plan, Cost | $ 2,000 | 37,000 | $ 6,000 | 110,000 |  |
Deferred Directors Supplemental Retirement Plan [Member] | Supplemental Employee Retirement Plan [Member] |  |  |  |  |  |
Pension Cost (Reversal of Cost) | 18,000 | $ 14,000 | 54,000 | $ 44,000 |  |
Liability, Defined Benefit Plan | $ 634,000 |  | $ 634,000 |  |  | $ 611,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 6.25% |  | 6.25% |  |  | 6.25%
Defined Contribution Plan, Cost |  |  | $ 20,000 |  |  |
Previous final base fee, percentage |  |  | 70.00% |  |  |
Revised fixed annual retirement benefits, payable |  |  | $ 200,000 |  |  |
Deferred Compensation Liability Current and Noncurrent | $ 1,200,000 |  | $ 1,200,000 |  |  | $ 917,000

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (j)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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