Allowance for Credit Losses - Activity by Class (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 24,030	$ 16,723	$ 16,723
Charge offs	(96)	(76)	(437)
Recoveries	174	51	204
Provision (credit)	99	550	1,330
Ending balance	24,207	23,458	24,030
Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		6,210	6,210
Commercial \| Real estate owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,633	6,116	6,116
Charge offs	0	(39)	(40)
Recoveries	100	0	2
Provision (credit)	447	79	241
Ending balance	5,180	4,470	4,633
Commercial \| Real estate owner occupied \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(1,686)	(1,686)
Commercial \| Real estate non-owner occupied
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,285	0	0
Charge offs	0	0	0
Recoveries	0	0	75
Provision (credit)	(20)	107	(105)
Ending balance	4,265	4,422	4,285
Commercial \| Real estate non-owner occupied \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		4,315	4,315
Commercial \| Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,978	821	821
Charge offs	0	0	0
Recoveries	0	0	0
Provision (credit)	(1,158)	20	214
Ending balance	820	1,784	1,978
Commercial \| Construction \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		943	943
Commercial \| C&I
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,001	3,097	3,097
Charge offs	0	0	(153)
Recoveries	23	2	3
Provision (credit)	59	94	409
Ending balance	5,083	4,838	5,001
Commercial \| C&I \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		1,645	1,645
Commercial \| Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	1,318	0	0
Charge offs	0	0	0
Recoveries	0	0	0
Provision (credit)	189	22	134
Ending balance	1,507	1,206	1,318
Commercial \| Multifamily \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		1,184	1,184
Commercial \| Agriculture
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	0
Charge offs	0
Recoveries	0
Provision (credit)	392
Ending balance	392		0
Municipal
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	334	162	162
Charge offs	0	0	0
Recoveries	0	0	0
Provision (credit)	(140)	13	40
Ending balance	194	307	334
Municipal \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		132	132
Residential
Allowance for Loan and Lease Losses [Roll Forward]
Charge offs		0
Residential \| Construction
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	618	199	199
Charge offs	0	0	0
Recoveries	0	0	0
Provision (credit)	(56)	15	(316)
Ending balance	562	949	618
Residential \| Construction \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		735	735
Residential \| Term
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,991	2,559	2,559
Charge offs	0	0	0
Recoveries	25	2	14
Provision (credit)	338	169	540
Ending balance	5,354	4,608	4,991
Residential \| Term \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		1,878	1,878
Home Equity
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	626	1,029	1,029
Charge offs	0	0	(50)
Recoveries	3	4	13
Provision (credit)	48	26	90
Ending balance	677	603	626
Home Equity \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(456)	(456)
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	246	1,062	1,062
Charge offs	(96)	(37)	(194)
Recoveries	23	43	97
Provision (credit)	0	5	83
Ending balance	173	271	246
Consumer \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		(802)	(802)
Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 0	1,678	1,678
Charge offs		0	0
Recoveries		0	0
Provision (credit)		0	0
Ending balance		0	0
Unallocated \| Impact of adopting ASC 326
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		$ (1,678)	$ (1,678)

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

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