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Allowance for Credit Losses - Financing Receivable and Allowance Element by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	$ 25,078	$ 24,829	$ 24,871	$ 23,999	$ 24,693	$ 24,030
Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	826		1,047	245
General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	21,053		20,714	20,870
Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	3,199		3,110	2,884
Commercial | Real estate owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	5,130	5,195	5,045	5,119	5,253	4,633
Commercial | Real estate owner occupied | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Commercial | Real estate owner occupied | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	4,396		4,355	4,484
Commercial | Real estate owner occupied | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	734		690	635
Commercial | Real estate non-owner occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	4,765	4,934	4,829	4,971	4,248	4,285
Commercial | Real estate non-owner occupied | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Commercial | Real estate non-owner occupied | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	4,127		4,237	4,387
Commercial | Real estate non-owner occupied | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	638		592	584
Commercial | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	419	436	944	807	922	1,978
Commercial | Construction | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Commercial | Construction | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	319		786	762
Commercial | Construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	100		158	45
Commercial | C&I
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	5,115	4,865	5,364	4,662	5,021	5,001
Commercial | C&I | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	740		1,047	223
Commercial | C&I | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	3,770		3,744	3,872
Commercial | C&I | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	605		573	567
Commercial | Multifamily
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	1,481	1,572	1,239	1,262	1,567	1,318
Commercial | Multifamily | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Commercial | Multifamily | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	1,304		1,108	1,129
Commercial | Multifamily | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	177		131	133
Commercial | Agriculture
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	673	666	605	613	428	0
Commercial | Agriculture | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Commercial | Agriculture | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	514		449	462
Commercial | Agriculture | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	159		156	151
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	288	267	262	266	180	334
Municipal | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Municipal | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	35		35	35
Municipal | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	253		227	231
Residential | Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	436	415	474	425	587	618
Residential | Construction | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Residential | Construction | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	380		414	411
Residential | Construction | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	56		60	14
Residential | Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	5,756	5,485	5,241	5,051	5,560	4,991
Residential | Term | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	86		0	22
Residential | Term | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	5,279		4,811	4,593
Residential | Term | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	391		430	436
Home Equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	849	823	686	663	744	626
Home Equity | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Home Equity | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	767		600	584
Home Equity | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	82		86	79
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	166	$ 171	182	160	$ 183	$ 246
Consumer | Specific Reserves on Loans Evaluated Individually
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	0		0	0
Consumer | General Reserves on Loans Based on Historical Loss Experience
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	162		175	151
Consumer | Reserves for Qualitative Factors
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Reserves	$ 4		$ 7	$ 9

X

- Definition

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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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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