Commitments and Contingent Liabilities - Summary of Unfunded Fixed Rate Loan Commitments (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	$ 22,228
Over One Year But Less Than Five Years	14,206
Over Five Years	7,347
Total	43,781
Interest rate less than or equal to 4.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	18,141
Over One Year But Less Than Five Years	4,203
Over Five Years	4,369
Total	26,713
Interest rate between 4.00% and 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	0
Over One Year But Less Than Five Years	7,437
Over Five Years	107
Total	7,544
Interest rate greater than or equal to 5.00%
Schedule Of Disclosure Of Unfunded Fixed Rate Loan Commitments [Line Items]
Due in One Year Or Less	4,087
Over One Year But Less Than Five Years	2,566
Over Five Years	2,871
Total	$ 9,524