Allowance for Credit Losses - Summary of Allowance for Credit Losses by Loan Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	$ 26,619	$ 23,842	$ 26,435	$ 23,767	$ 23,767
Charge-offs	(49)	(6)	(141)	(95)
Charges-offs on PCD acquired loans	(2,018)		(2,018)
Recoveries	9	26	20	45
Allowance for Credit Losses on PCD Acquired Loans		2,300		2,300
Provision for credit losses	90	126	355	271
Ending balance	24,651	26,288	24,651	26,288	26,435
Agriculture and Farmland [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	10	12	11	12	12
Charge-offs	0	0	0	0
Charges-offs on PCD acquired loans	0		0
Recoveries	0	0	0	0
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	(1)	0	(2)	0
Ending balance	9	12	9	12	11
Construction [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,360	1,523	893	959	959
Charge-offs	0	0	0	0
Charges-offs on PCD acquired loans	0		0
Recoveries	2	2	3	2
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	116	316	582	880
Ending balance	1,478	1,841	1,478	1,841	893
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	4,403	2,962	4,093	2,940	2,940
Charge-offs	0	(4)	(74)	(10)
Charges-offs on PCD acquired loans	0		0
Recoveries	0	6	4	8
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	(161)	471	219	497
Ending balance	4,242	3,435	4,242	3,435	4,093
Multifamily [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,813	1,592	1,805	1,483	1,483
Charge-offs	0	0	0	0
Charges-offs on PCD acquired loans	0		0
Recoveries	0	2	0	2
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	66	320	74	429
Ending balance	1,879	1,914	1,879	1,914	1,805
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	5,339	5,738	5,611	6,572	6,572
Charge-offs	0	0	0	(6)
Charges-offs on PCD acquired loans	0		0
Recoveries	1	0	1	1
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	423	143	151	(686)
Ending balance	5,763	5,881	5,763	5,881	5,611
Non-owner Occupied [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	9,050	6,099	9,345	5,773	5,773
Charge-offs	(35)	0	(35)	(54)
Charges-offs on PCD acquired loans	(2,018)		(2,018)
Recoveries	0	4	0	4
Allowance for Credit Losses on PCD Acquired Loans		2,300		2,300
Provision for credit losses	(273)	(377)	(568)	3
Ending balance	6,724	8,026	6,724	8,026	9,345
First Liens [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	3,299	4,675	3,395	4,778	4,778
Charge-offs	(3)	0	(3)	0
Charges-offs on PCD acquired loans	0		0
Recoveries	5	6	9	13
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	(74)	(634)	(174)	(744)
Ending balance	3,227	4,047	3,227	4,047	3,395
Second Liens and Lines of Credit [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,208	1,071	1,154	1,072	1,072
Charge-offs	0	0	0	0
Charges-offs on PCD acquired loans	0		0
Recoveries	0	3	1	10
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	(20)	(97)	33	(105)
Ending balance	1,188	977	1,188	977	1,154
Municipal [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	36	68	48	79	79
Charge-offs	0	0	0	0
Charges-offs on PCD acquired loans	0		0
Recoveries	0	0	0
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	1	(4)	(11)	(15)
Ending balance	37	64	37	64	48
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	101	102	80	99	99
Charge-offs	(11)	(2)	(29)	(25)
Charges-offs on PCD acquired loans	0
Recoveries	1	3	2	5
Allowance for Credit Losses on PCD Acquired Loans		0		0
Provision for credit losses	13	(12)	51	12
Ending balance	$ 104	$ 91	$ 104	$ 91	$ 80