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Loans and ACL (Past due and current loans) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 1,367,724	$ 1,423,571
Financing Receivable, 90 Days or More Past Due, Still Accruing	26	19
Total commercial [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	249,220	244,894
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	220,884	221,510
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial and Industrial, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	28,336	23,384
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	552,234	547,447
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Real Estate, Owner Occupied, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	183,228	178,376
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Real Estate, Non-owner Occupied
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	206,976	208,118
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	93,845	92,497
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Real Estate, Multifamily, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	68,185	68,456
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,015	63,080
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Total agricultural [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	94,359	99,694
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Agricultural Mortgage, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	65,699	67,550
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Agricultural other [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	28,660	32,144
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Residential Mortgage
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	387,348	380,872
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Residential Real Estate, Senior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	337,542	332,743
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Residential Real Estate, Junior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	9,409	8,655
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Residential Real Estate, Home Equity Lines of Credit, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	40,397	39,474
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	81,548	87,584
Financing Receivable, 90 Days or More Past Due, Still Accruing	26	19
Consumer, Secured, Direct, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	33,220	35,050
Financing Receivable, 90 Days or More Past Due, Still Accruing	26	19
Consumer, Secured, Indirect, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	45,081	49,136
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Consumer, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	3,247	3,398
Financing Receivable, 90 Days or More Past Due, Still Accruing	0	0
Financial Asset, 30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total	5,202	5,271
Financial Asset, 30 to 59 Days Past Due [Member] | Total commercial [Member]
Financing Receivable, Past Due [Line Items]
Total	79	328
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	79	328
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial and Industrial, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Total	1,617	817
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate, Owner Occupied, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	26	25
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate, Non-owner Occupied
Financing Receivable, Past Due [Line Items]
Total	1,487	792
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	104	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate, Multifamily, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Total agricultural [Member]
Financing Receivable, Past Due [Line Items]
Total	57	0
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural Mortgage, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Agricultural other [Member]
Financing Receivable, Past Due [Line Items]
Total	57	0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Mortgage
Financing Receivable, Past Due [Line Items]
Total	3,243	3,875
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate, Senior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	3,163	3,846
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate, Junior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	19
Financial Asset, 30 to 59 Days Past Due [Member] | Residential Real Estate, Home Equity Lines of Credit, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	80	10
Financial Asset, 30 to 59 Days Past Due [Member] | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total	206	251
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer, Secured, Direct, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	3	15
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer, Secured, Indirect, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	197	232
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	6	4
Financial Asset, 60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Total	354	502
Financial Asset, 60 to 89 Days Past Due [Member] | Total commercial [Member]
Financing Receivable, Past Due [Line Items]
Total	50	50
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial and Industrial, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	50	50
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Total	304	304
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate, Owner Occupied, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	304	304
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate, Non-owner Occupied
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate, Multifamily, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Total agricultural [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural Mortgage, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Agricultural other [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Mortgage
Financing Receivable, Past Due [Line Items]
Total	0	148
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate, Senior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	148
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate, Junior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential Real Estate, Home Equity Lines of Credit, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer, Secured, Direct, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer, Secured, Indirect, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total	82	182
Financial Asset, Equal to or Greater than 90 Days Past Due | Total commercial [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial and Industrial, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate, Owner Occupied, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate, Non-owner Occupied
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate, Multifamily, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Total agricultural [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Agricultural Mortgage, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Agricultural other [Member]
Financing Receivable, Past Due [Line Items]
Total	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Mortgage
Financing Receivable, Past Due [Line Items]
Total	56	163
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Real Estate, Senior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	56	163
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Real Estate, Junior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Residential Real Estate, Home Equity Lines of Credit, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total	26	19
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer, Secured, Direct, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	26	19
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	26	19
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer, Secured, Indirect, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	0	0
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	0	0
Financial Asset, Not Past Due
Financing Receivable, Past Due [Line Items]
Total	1,362,086	1,417,616
Financial Asset, Not Past Due | Total commercial [Member]
Financing Receivable, Past Due [Line Items]
Total	249,091	244,516
Financial Asset, Not Past Due | Commercial and Industrial, Secured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	220,805	221,182
Financial Asset, Not Past Due | Commercial and Industrial, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	28,286	23,334
Financial Asset, Not Past Due | Commercial Real Estate
Financing Receivable, Past Due [Line Items]
Total	550,313	546,326
Financial Asset, Not Past Due | Commercial Real Estate, Owner Occupied, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	182,898	178,047
Financial Asset, Not Past Due | Commercial Real Estate, Non-owner Occupied
Financing Receivable, Past Due [Line Items]
Total	205,489	207,326
Financial Asset, Not Past Due | Commercial Real Estate, 1-4 Family Investor, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	93,741	92,497
Financial Asset, Not Past Due | Commercial Real Estate, Multifamily, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	68,185	68,456
Financial Asset, Not Past Due | Commercial Advances to Mortgage Brokers Segment [Member]
Financing Receivable, Past Due [Line Items]
Total	3,015	63,080
Financial Asset, Not Past Due | Total agricultural [Member]
Financing Receivable, Past Due [Line Items]
Total	94,302	99,694
Financial Asset, Not Past Due | Agricultural Mortgage, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	65,699	67,550
Financial Asset, Not Past Due | Agricultural other [Member]
Financing Receivable, Past Due [Line Items]
Total	28,603	32,144
Financial Asset, Not Past Due | Residential Mortgage
Financing Receivable, Past Due [Line Items]
Total	384,049	376,686
Financial Asset, Not Past Due | Residential Real Estate, Senior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	334,323	328,586
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	334,207	328,558
Financial Asset, Not Past Due | Residential Real Estate, Junior Lien, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	9,409	8,636
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	9,409	8,636
Financial Asset, Not Past Due | Residential Real Estate, Home Equity Lines of Credit, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	40,317	39,464
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	40,317	39,464
Financial Asset, Not Past Due | Total Consumer [Member]
Financing Receivable, Past Due [Line Items]
Total	81,316	87,314
Financial Asset, Not Past Due | Consumer, Secured, Direct, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	33,191	35,016
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	33,191	35,016
Financial Asset, Not Past Due | Consumer, Secured, Indirect, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	44,884	48,904
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	44,884	48,904
Financial Asset, Not Past Due | Consumer, Unsecured, Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total	3,241	3,394
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss	$ 3,241	$ 3,394

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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- Definition

Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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