Employee Benefits - Additional Information (Detail) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2023	Dec. 31, 2022	Oct. 01, 2021
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation plan accumulated liability			$ 1,273,000	$ 1,216,000
Deferred compensation cost noninterest expense			91,000	128,000
Deferred compensation plans benefit payments			$ 214,000	121,000
Employee stock purchase plan, shares			454,000
Deferred compensation common stock shares reserved for issuance Employee stock purchase plan			475,000
Deferred compensation plan percentage of lower of fair market value of shares Employee stock purchase plan			95.00%
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation plan value of shares limit to purchase Employee stock purchase plan			$ 25,000,000
Deferred compensation plan percentage of purchase limit of annual salary Employee stock purchase plan			10.00%
401(k) Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of employee contribution match to vested					50.00%
Employee's contribution, percentage	6.00%
Contribution expense			$ 344,000	$ 278,000
Defined Contribution Plan, Description			Effective October 1, 2021, the Company matches 50 percent of the first 6 percent of the employee's contribution, and this match is immediately vested.
401(k) Plan [Member] | W-2 Wages [Member]
Defined Benefit Plan Disclosure [Line Items]
Non elective contribution percentage		4.00%		3.00%
Discretionary contribution Percentage				6.00%
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution expense			$ 653,000	$ 469,000
Deferred compensation plan accumulated liability			$ 1,978,000	$ 1,650,000