Loans (Risk Category of Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 3,788,645	$ 3,007,926
Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	158,088	141,348
One year before current fiscal year	123,425	58,826
Two year before current fiscal year	41,375	61,110
Three year before current fiscal year	47,887	30,716
Four year before current fiscal year	20,002	17,321
Prior	56,065	51,934
Revolving Loans Amortized Cost Basis	173,264	131,750
Loans	620,106	493,005
Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	402,613	406,528
One year before current fiscal year	496,943	264,011
Two year before current fiscal year	266,563	172,601
Three year before current fiscal year	164,251	147,700
Four year before current fiscal year	143,819	157,144
Prior	457,532	355,996
Revolving Loans Amortized Cost Basis	35,163	26,697
Loans	1,966,884	1,530,677
Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	63,307	46,224
One year before current fiscal year	48,734	50,447
Two year before current fiscal year	54,049	28,048
Three year before current fiscal year	30,009	27,597
Four year before current fiscal year	24,168	31,811
Prior	108,974	84,741
Revolving Loans Amortized Cost Basis	88,172	89,282
Loans	417,413	358,150
Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20,057	19,689
One year before current fiscal year	14,461	12,706
Two year before current fiscal year	9,648	12,990
Three year before current fiscal year	8,901	5,599
Four year before current fiscal year	1,851	2,473
Prior	1,478	1,888
Revolving Loans Amortized Cost Basis	0	0
Loans	56,396	55,345
Pass | Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	156,318	141,133
One year before current fiscal year	117,648	57,477
Two year before current fiscal year	39,949	60,883
Three year before current fiscal year	46,505	29,005
Four year before current fiscal year	18,423	15,936
Prior	51,482	48,559
Revolving Loans Amortized Cost Basis	154,203	122,377
Loans	584,528	475,370
Pass | Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	398,631	404,175
One year before current fiscal year	490,747	264,011
Two year before current fiscal year	261,462	164,204
Three year before current fiscal year	162,701	131,746
Four year before current fiscal year	129,151	139,788
Prior	427,433	336,066
Revolving Loans Amortized Cost Basis	35,163	26,697
Loans	1,905,288	1,466,687
Pass | Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	62,673	44,510
One year before current fiscal year	47,682	45,101
Two year before current fiscal year	47,355	22,482
Three year before current fiscal year	25,431	24,187
Four year before current fiscal year	21,728	24,325
Prior	92,344	71,268
Revolving Loans Amortized Cost Basis	83,862	81,011
Loans	381,075	312,884
Pass | Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	20,057	19,689
One year before current fiscal year	14,461	12,706
Two year before current fiscal year	9,648	12,990
Three year before current fiscal year	8,901	5,599
Four year before current fiscal year	1,851	2,473
Prior	1,478	1,888
Revolving Loans Amortized Cost Basis	0	0
Loans	56,396	55,345
Special Mention | Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	56	115
One year before current fiscal year	148	128
Two year before current fiscal year	577	227
Three year before current fiscal year	78	649
Four year before current fiscal year	551	7
Prior	2,346	918
Revolving Loans Amortized Cost Basis	1,672	1,510
Loans	5,428	3,554
Special Mention | Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	3,982	2,279
One year before current fiscal year	1,568	0
Two year before current fiscal year	4,612	710
Three year before current fiscal year	135	14,426
Four year before current fiscal year	13,689	17,356
Prior	25,371	13,916
Revolving Loans Amortized Cost Basis	0	0
Loans	49,357	48,687
Special Mention | Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	634	1,714
One year before current fiscal year	842	5,346
Two year before current fiscal year	6,066	5,503
Three year before current fiscal year	4,149	3,025
Four year before current fiscal year	2,355	6,438
Prior	11,440	6,624
Revolving Loans Amortized Cost Basis	4,310	8,271
Loans	29,796	36,921
Special Mention | Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	0	0
Substandard | Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	1,714	100
One year before current fiscal year	5,629	1,221
Two year before current fiscal year	849	0
Three year before current fiscal year	1,304	1,062
Four year before current fiscal year	1,028	1,378
Prior	2,237	2,457
Revolving Loans Amortized Cost Basis	17,389	7,863
Loans	30,150	14,081
Substandard | Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	74
One year before current fiscal year	4,628	0
Two year before current fiscal year	489	7,687
Three year before current fiscal year	1,415	1,528
Four year before current fiscal year	979	0
Prior	4,728	6,014
Revolving Loans Amortized Cost Basis	0	0
Loans	12,239	15,303
Substandard | Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	210	0
Two year before current fiscal year	628	63
Three year before current fiscal year	429	385
Four year before current fiscal year	85	1,048
Prior	5,190	6,849
Revolving Loans Amortized Cost Basis	0	0
Loans	6,542	8,345
Substandard | Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	0	0
Doubtful | Commercial and Industrial Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	0	0
Doubtful | Commercial Real Estate Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	0	0
Doubtful | Agricultural Loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	0	0
Doubtful | Leases
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One year before current fiscal year	0	0
Two year before current fiscal year	0	0
Three year before current fiscal year	0	0
Four year before current fiscal year	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Loans	$ 0	$ 0