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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	$ 23,842	$ 10,526	$ 23,767	$ 4,666	$ 4,666
Impact of adopting ASC 326				5,655
Charge-offs	(6)	0	(95)	0
Recoveries	26	97	45	99
Allowance for Credit Losses on PCD Acquired Loans	2,300		2,300
Provision for credit losses	126	(395)	271	(192)
Ending balance	26,288	10,228	26,288	10,228	23,767
ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Impact of adopting ASC 326				0
Agriculture and Farmland [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	12	208	12	279	279
Impact of adopting ASC 326				(190)
Charge-offs		0	0	0
Recoveries	0	0		0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	0	1	0	120
Ending balance	12	209	12	209	12
Construction [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,523	813	959	274	274
Impact of adopting ASC 326				513
Charge-offs	0	0	0	0
Recoveries	2	0	2	0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	316	(85)	880	(59)
Ending balance	1,841	728	1,841	728	959
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	2,962	930	2,940	583	583
Impact of adopting ASC 326				283
Charge-offs	(4)	0	(10)	0
Recoveries	6	0	8	0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	471	(201)	497	(137)
Ending balance	3,435	729	3,435	729	2,940
Multifamily [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,592	730	1,483	480	480
Impact of adopting ASC 326				340
Charge-offs	0	0		0
Recoveries	2	0	2	0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	320	(57)	429	(147)
Ending balance	1,914	673	1,914	673	1,483
Owner Occupied [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	5,738	1,593	6,572	635	635
Impact of adopting ASC 326				760
Charge-offs	0	0	(6)	0
Recoveries		0	1	0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	143	(34)	(686)	164
Ending balance	5,881	1,559	5,881	1,559	6,572
Non-owner Occupied [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	6,099	4,315	5,773	1,116	1,116
Impact of adopting ASC 326				3,195
Charge-offs	0	0	(54)	0
Recoveries	4	12	4	12
Allowance for Credit Losses on PCD Acquired Loans	2,300		2,300
Provision for credit losses	(377)	23	3	27
Ending balance	8,026	4,350	8,026	4,350	5,773
First Liens [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	4,675	1,508	4,778	1,029	1,029
Impact of adopting ASC 326				635
Charge-offs	0	0	0	0
Recoveries	6	27	13	28
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	(634)	(138)	(744)	(295)
Ending balance	4,047	1,397	4,047	1,397	4,778
Second Liens and Lines of Credit [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	1,071	402	1,072	218	218
Impact of adopting ASC 326				140
Charge-offs	0	0	0	0
Recoveries	3	58	10	59
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	(97)	(77)	(105)	(34)
Ending balance	977	383	977	383	1,072
Municipal [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	68	7	79	12	12
Impact of adopting ASC 326				(2)
Charge-offs	0	0	0	0
Recoveries		0		0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	(4)		(15)	(3)
Ending balance	64	7	64	7	79
Consumer [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance	102	20	99	40	40
Impact of adopting ASC 326				(19)
Charge-offs	(2)	0	(25)	0
Recoveries	3	0	5	0
Allowance for Credit Losses on PCD Acquired Loans	0		0
Provision for credit losses	(12)	2	12	1
Ending balance	$ 91	22	$ 91	22	99
Unallocated [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Beginning balance		0		0	$ 0
Charge-offs		0		0
Recoveries		0		0
Provision for credit losses		171		171
Ending balance		$ 171		$ 171