Loans and Leases, Outstanding Loan and Lease Balances Held-for-Investment by Segment and Class, Credit Quality Indicators, Vintage Year by Class of Financing Receivable and Current Period Gross Charge-Offs by Year of Origination (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	$ 338,204	$ 407,778
2022/2021	371,281	429,879
2021/2020	391,245	318,280
2020/2019	291,260	121,080
2019/2018	106,279	174,562
Prior	549,753	476,340
Revolving loans amortized cost	1,606,667	1,584,442
Total net loans and leases	3,654,689	3,512,361
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	41	40
2022/2021	3	6
2021/2020	0	177
2020/2019	0	247
2019/2018	0	82
Prior	16	29
Revolving loans amortized cost	0	0
Total	60	581
Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	335,552	407,542
2022/2021	368,807	429,816
2021/2020	386,267	318,280
2020/2019	290,200	118,352
2019/2018	104,248	170,628
Prior	536,012	468,509
Revolving loans amortized cost	1,597,396	1,569,403
Total net loans and leases	3,618,482	3,482,530
Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	2,500	0
2022/2021	2,474	63
2021/2020	4,978	0
2020/2019	1,060	2,717
2019/2018	2,026	3,820
Prior	11,931	1,115
Revolving loans amortized cost	9,271	14,537
Total net loans and leases	34,240	22,252
Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	152	236
2022/2021	0	0
2021/2020	0	0
2020/2019	0	11
2019/2018	5	114
Prior	1,810	6,716
Revolving loans amortized cost	0	502
Total net loans and leases	1,967	7,579
Real Estate [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	200,440	330,589
2022/2021	307,938	373,379
2021/2020	351,115	291,641
2020/2019	273,351	105,148
2019/2018	96,407	145,881
Prior	510,191	446,325
Revolving loans amortized cost	929,839	908,580
Total net loans and leases	2,669,281	2,601,543
Real Estate [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	2,649,431	2,578,045
Real Estate [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	18,540	16,426
Real Estate [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	1,310	7,072
Commercial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	121,418	194,698
2022/2021	171,566	234,478
2021/2020	221,708	150,203
2020/2019	143,502	71,333
2019/2018	67,505	88,952
Prior	263,560	219,778
Revolving loans amortized cost	325,669	360,872
Total net loans and leases	1,314,928	1,320,314
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	170
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	170
Commercial [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	121,418	194,698
2022/2021	169,171	234,478
2021/2020	221,708	150,203
2020/2019	143,502	71,333
2019/2018	67,505	85,132
Prior	261,344	218,261
Revolving loans amortized cost	324,069	360,272
Total net loans and leases	1,308,717	1,314,377
Commercial [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	2,395	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	3,820
Prior	2,216	1,115
Revolving loans amortized cost	1,600	600
Total net loans and leases	6,211	5,535
Commercial [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	402
Revolving loans amortized cost	0	0
Total net loans and leases	0	402
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	37,849	67,044
2022/2021	71,367	42,546
2021/2020	40,848	54,893
2020/2019	51,039	17,710
2019/2018	14,028	50,297
Prior	175,527	150,061
Revolving loans amortized cost	351,351	344,387
Total net loans and leases	742,009	726,938
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	0
Agricultural [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	37,849	67,044
2022/2021	71,367	42,546
2021/2020	40,848	54,893
2020/2019	50,445	15,074
2019/2018	12,008	50,186
Prior	165,267	144,052
Revolving loans amortized cost	351,351	336,132
Total net loans and leases	729,135	709,927
Agricultural [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	594	2,636
2019/2018	2,020	0
Prior	9,715	0
Revolving loans amortized cost	0	8,255
Total net loans and leases	12,329	10,891
Agricultural [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	111
Prior	545	6,009
Revolving loans amortized cost	0	0
Total net loans and leases	545	6,120
Residential and Home Equity [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	41,173	66,847
2022/2021	62,505	96,354
2021/2020	88,559	86,545
2020/2019	78,810	14,530
2019/2018	13,299	6,632
Prior	71,104	76,455
Revolving loans amortized cost	44,532	40,390
Total net loans and leases	399,982	387,753
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	14	25
Revolving loans amortized cost	0	0
Total	14	25
Residential and Home Equity [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	41,173	66,847
2022/2021	62,505	96,354
2021/2020	88,559	86,545
2020/2019	78,810	14,530
2019/2018	13,299	6,632
Prior	70,339	76,155
Revolving loans amortized cost	44,532	40,308
Total net loans and leases	399,217	387,371
Residential and Home Equity [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	0	0
Residential and Home Equity [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	765	300
Revolving loans amortized cost	0	82
Total net loans and leases	765	382
Construction [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	2,000
2022/2021	2,500	1
2021/2020	0	0
2020/2019	0	1,575
2019/2018	1,575	0
Prior	0	31
Revolving loans amortized cost	208,287	162,931
Total net loans and leases	212,362	166,538
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	0
Construction [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	2,000
2022/2021	2,500	1
2021/2020	0	0
2020/2019	0	1,575
2019/2018	1,575	0
Prior	0	31
Revolving loans amortized cost	208,287	162,763
Total net loans and leases	212,362	166,370
Construction [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	0	0
Construction [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	168
Total net loans and leases	0	168
Commercial and Industrial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	51,662	34,410
2022/2021	25,822	36,909
2021/2020	26,598	12,325
2020/2019	7,659	8,245
2019/2018	4,123	7,168
Prior	7,150	5,684
Revolving loans amortized cost	376,359	374,017
Total net loans and leases	499,373	478,758
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	246
2019/2018	0	78
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	324
Commercial and Industrial [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	49,162	34,410
2022/2021	25,795	36,846
2021/2020	21,695	12,325
2020/2019	7,193	8,245
2019/2018	4,123	7,167
Prior	6,674	5,679
Revolving loans amortized cost	371,797	373,765
Total net loans and leases	486,439	478,437
Commercial and Industrial [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	2,500	0
2022/2021	27	63
2021/2020	4,903	0
2020/2019	466	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	4,562	0
Total net loans and leases	12,458	63
Commercial and Industrial [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	1
Prior	476	5
Revolving loans amortized cost	0	252
Total net loans and leases	476	258
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	3,013	5,378
2022/2021	4,637	3,083
2021/2020	2,371	989
2020/2019	688	1,526
2019/2018	1,031	638
Prior	2,116	2,071
Revolving loans amortized cost	299,881	300,840
Total net loans and leases	313,737	314,525
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	0
Agricultural [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	3,013	5,378
2022/2021	4,585	3,083
2021/2020	2,296	989
2020/2019	688	1,515
2019/2018	1,026	636
Prior	2,116	2,071
Revolving loans amortized cost	296,772	295,158
Total net loans and leases	310,496	308,830
Agricultural [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	52	0
2021/2020	75	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	3,109	5,682
Total net loans and leases	3,236	5,682
Agricultural [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	11
2019/2018	5	2
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	5	13
Commercial Leases [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	81,287	35,689
2022/2021	31,954	15,874
2021/2020	10,786	13,050
2020/2019	9,514	5,985
2019/2018	4,673	20,560
Prior	28,872	20,491
Revolving loans amortized cost	0	0
Total net loans and leases	167,086	111,649
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total	0	0
Commercial Leases [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	81,287	35,689
2022/2021	31,954	15,874
2021/2020	10,786	13,050
2020/2019	9,514	5,904
2019/2018	4,667	20,560
Prior	28,872	20,491
Revolving loans amortized cost	0	0
Total net loans and leases	167,080	111,568
Commercial Leases [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	81
2019/2018	6	0
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	6	81
Commercial Leases [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	0	0
Consumer and Other [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	1,802	1,712
2022/2021	930	634
2021/2020	375	275
2020/2019	48	176
2019/2018	45	315
Prior	1,424	1,769
Revolving loans amortized cost	588	1,005
Total net loans and leases	5,212	5,886
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2023/2022	41	40
2022/2021	3	6
2021/2020	0	7
2020/2019	0	1
2019/2018	0	4
Prior	2	4
Revolving loans amortized cost	0	0
Total	46	62
Consumer and Other [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	1,650	1,476
2022/2021	930	634
2021/2020	375	275
2020/2019	48	176
2019/2018	45	315
Prior	1,400	1,769
Revolving loans amortized cost	588	1,005
Total net loans and leases	5,036	5,650
Consumer and Other [Member] | Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	0	0
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	0	0
Revolving loans amortized cost	0	0
Total net loans and leases	0	0
Consumer and Other [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2023/2022	152	236
2022/2021	0	0
2021/2020	0	0
2020/2019	0	0
2019/2018	0	0
Prior	24	0
Revolving loans amortized cost	0	0
Total net loans and leases	$ 176	$ 236