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Junior Subordinated Debt - Additional Information (Detail) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) trust office | Dec. 31, 2023 USD ($)
Class of Stock [Line Items] |  |
Number of subsidiary business trusts (in trusts) | trust | 5 |
Preferred stock, value issued | $ | $ 0 | $ 0
Interest deferral period | 5 years |
Number of loan production offices (in offices) | office | 2 |
VRB Subordinated - 5% | Senior Subordinated Notes |  |
Class of Stock [Line Items] |  |
Interest rate | 5.00% |
Current Coupon Rate | 5.00% |
Basis spread on variable rate | 4.90% |
North Valley Bancorp |  |
Class of Stock [Line Items] |  |
Number of subsidiary business trusts (in trusts) | trust | 3 |
Wholly owned subsidiaries |  |
Class of Stock [Line Items] |  |
Preferred stock, value issued | $ | $ 62,900 |

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