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	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	$ 106,114		$ 106,114		$ 338,204
2023/2022	325,440		325,440		371,281
2022/2021	358,183		358,183		391,245
2021/2020	374,776		374,776		291,260
2020/2019	282,097		282,097		106,279
Prior	613,624		613,624		549,753
Revolving loans amortized cost	1,451,645		1,451,645		1,484,651
Revolving loans converted to term	170,491		170,491		122,016
Total net loans and leases	3,682,370		3,682,370		3,654,689
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			26		41
2023/2022			0		3
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		16
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	16	$ 9	26	$ 32	60
Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	105,343		105,343		335,552
2023/2022	323,159		323,159		368,807
2022/2021	352,650		352,650		386,267
2021/2020	374,719		374,719		290,200
2020/2019	281,297		281,297		104,248
Prior	600,639		600,639		536,012
Revolving loans amortized cost	1,430,776		1,430,776		1,475,423
Revolving loans converted to term	170,385		170,385		121,973
Total net loans and leases	3,638,968		3,638,968		3,618,482
Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	583		583		2,500
2023/2022	2,281		2,281		2,474
2022/2021	5,533		5,533		4,978
2021/2020	19		19		1,060
2020/2019	800		800		2,026
Prior	11,280		11,280		11,931
Revolving loans amortized cost	20,825		20,825		9,228
Revolving loans converted to term	106		106		43
Total net loans and leases	41,427		41,427		34,240
Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	188		188		152
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	38		38		0
2020/2019	0		0		5
Prior	1,705		1,705		1,810
Revolving loans amortized cost	44		44		0
Revolving loans converted to term	0		0		0
Total net loans and leases	1,975		1,975		1,967
Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	0		0		0
Real Estate [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	67,338		67,338		200,440
2023/2022	196,509		196,509		307,938
2022/2021	300,780		300,780		351,115
2021/2020	343,675		343,675		273,351
2020/2019	267,408		267,408		96,407
Prior	570,481		570,481		510,191
Revolving loans amortized cost	815,107		815,107		831,542
Revolving loans converted to term	127,779		127,779		98,297
Total net loans and leases	2,689,077		2,689,077		2,669,281
Real Estate [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	2,656,853		2,656,853		2,649,431
Real Estate [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	30,968		30,968		18,540
Real Estate [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	1,256		1,256		1,310
Real Estate [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	0		0		0
Commercial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	35,410		35,410		121,418
2023/2022	119,248		119,248		171,566
2022/2021	168,498		168,498		221,708
2021/2020	218,406		218,406		143,502
2020/2019	140,794		140,794		67,505
Prior	315,309		315,309		263,560
Revolving loans amortized cost	263,052		263,052		250,687
Revolving loans converted to term	94,997		94,997		74,982
Total net loans and leases	1,355,714		1,355,714		1,314,928
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total			0		0
Commercial [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	35,410		35,410		121,418
2023/2022	119,248		119,248		169,171
2022/2021	167,224		167,224		221,708
2021/2020	218,406		218,406		143,502
2020/2019	140,794		140,794		67,505
Prior	314,708		314,708		261,344
Revolving loans amortized cost	261,582		261,582		249,087
Revolving loans converted to term	94,966		94,966		74,982
Total net loans and leases	1,352,338		1,352,338		1,308,717
Commercial [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		2,395
2022/2021	1,274		1,274		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	601		601		2,216
Revolving loans amortized cost	1,470		1,470		1,600
Revolving loans converted to term	31		31		0
Total net loans and leases	3,376		3,376		6,211
Commercial [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Commercial [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	7,854		7,854		37,849
2023/2022	36,895		36,895		71,367
2022/2021	70,359		70,359		40,848
2021/2020	39,370		39,370		51,039
2020/2019	50,197		50,197		14,028
Prior	174,682		174,682		175,527
Revolving loans amortized cost	314,061		314,061		328,105
Revolving loans converted to term	32,710		32,710		23,246
Total net loans and leases	726,128		726,128		742,009
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total			0		0
Agricultural [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	7,854		7,854		37,849
2023/2022	36,895		36,895		71,367
2022/2021	70,359		70,359		40,848
2021/2020	39,370		39,370		50,445
2020/2019	49,397		49,397		12,008
Prior	163,571		163,571		165,267
Revolving loans amortized cost	297,948		297,948		328,105
Revolving loans converted to term	32,710		32,710		23,246
Total net loans and leases	698,104		698,104		729,135
Agricultural [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		594
2020/2019	800		800		2,020
Prior	10,565		10,565		9,715
Revolving loans amortized cost	16,113		16,113		0
Revolving loans converted to term	0		0		0
Total net loans and leases	27,478		27,478		12,329
Agricultural [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	546		546		545
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	546		546		545
Agricultural [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Residential and Home Equity [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	18,275		18,275		41,173
2023/2022	40,366		40,366		62,505
2022/2021	60,423		60,423		88,559
2021/2020	85,899		85,899		78,810
2020/2019	76,417		76,417		13,299
Prior	78,914		78,914		71,104
Revolving loans amortized cost	46,196		46,196		44,463
Revolving loans converted to term	72		72		69
Total net loans and leases	406,562		406,562		399,982
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		14
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	14	14
Residential and Home Equity [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	18,275		18,275		41,173
2023/2022	40,366		40,366		62,505
2022/2021	60,423		60,423		88,559
2021/2020	85,899		85,899		78,810
2020/2019	76,417		76,417		13,299
Prior	78,090		78,090		70,339
Revolving loans amortized cost	46,196		46,196		44,463
Revolving loans converted to term	72		72		69
Total net loans and leases	405,738		405,738		399,217
Residential and Home Equity [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	114		114		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	114		114		0
Residential and Home Equity [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	710		710		765
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	710		710		765
Residential and Home Equity [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Construction [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	5,799		5,799		0
2023/2022	0		0		2,500
2022/2021	1,500		1,500		0
2021/2020	0		0		0
2020/2019	0		0		1,575
Prior	1,576		1,576		0
Revolving loans amortized cost	191,798		191,798		208,287
Revolving loans converted to term	0		0		0
Total net loans and leases	200,673		200,673		212,362
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	0	0
Construction [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	5,799		5,799		0
2023/2022	0		0		2,500
2022/2021	1,500		1,500		0
2021/2020	0		0		0
2020/2019	0		0		1,575
Prior	1,576		1,576		0
Revolving loans amortized cost	191,798		191,798		208,287
Revolving loans converted to term	0		0		0
Total net loans and leases	200,673		200,673		212,362
Construction [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Construction [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Construction [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Commercial & Industrial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	16,131		16,131		51,662
2023/2022	45,590		45,590		25,822
2022/2021	23,980		23,980		26,598
2021/2020	19,488		19,488		7,659
2020/2019	5,506		5,506		4,123
Prior	8,577		8,577		7,150
Revolving loans amortized cost	351,812		351,812		357,021
Revolving loans converted to term	27,760		27,760		19,338
Total net loans and leases	498,844		498,844		499,373
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total			0		0
Commercial & Industrial [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	16,131		16,131		49,162
2023/2022	43,309		43,309		25,795
2022/2021	23,956		23,956		21,695
2021/2020	19,431		19,431		7,193
2020/2019	5,506		5,506		4,123
Prior	8,150		8,150		6,674
Revolving loans amortized cost	349,189		349,189		352,502
Revolving loans converted to term	27,728		27,728		19,295
Total net loans and leases	493,400		493,400		486,439
Commercial & Industrial [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		2,500
2023/2022	2,281		2,281		27
2022/2021	24		24		4,903
2021/2020	19		19		466
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	2,623		2,623		4,519
Revolving loans converted to term	32		32		43
Total net loans and leases	4,979		4,979		12,458
Commercial & Industrial [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	38		38		0
2020/2019	0		0		0
Prior	427		427		476
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	465		465		476
Commercial & Industrial [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		0
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	1,212		1,212		3,013
2023/2022	3,668		3,668		4,637
2022/2021	3,974		3,974		2,371
2021/2020	1,967		1,967		688
2020/2019	522		522		1,031
Prior	2,652		2,652		2,116
Revolving loans amortized cost	283,935		283,935		295,500
Revolving loans converted to term	14,952		14,952		4,381
Total net loans and leases	312,882		312,882		313,737
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total			0		0
Agricultural [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	1,212		1,212		3,013
2023/2022	3,668		3,668		4,585
2022/2021	3,926		3,926		2,296
2021/2020	1,967		1,967		688
2020/2019	522		522		1,026
Prior	2,650		2,650		2,116
Revolving loans amortized cost	283,272		283,272		292,391
Revolving loans converted to term	14,909		14,909		4,381
Total net loans and leases	312,126		312,126		310,496
Agricultural [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		52
2022/2021	48		48		75
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	619		619		3,109
Revolving loans converted to term	43		43		0
Total net loans and leases	710		710		3,236
Agricultural [Member] \| Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		5
Prior	2		2		0
Revolving loans amortized cost	44		44		0
Revolving loans converted to term	0		0		0
Total net loans and leases	46		46		5
Agricultural [Member] \| Doubtful [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	0		0		0
Commercial Leases [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	20,561		20,561		81,287
2023/2022	78,190		78,190		31,954
2022/2021	28,721		28,721		10,786
2021/2020	9,465		9,465		9,514
2020/2019	8,634		8,634		4,673
Prior	30,298		30,298		28,872
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	175,869		175,869		167,086
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	0	0
Commercial Leases [Member] \| Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	19,978		19,978		81,287
2023/2022	78,190		78,190		31,954
2022/2021	24,534		24,534		10,786
2021/2020	9,465		9,465		9,514
2020/2019	8,634		8,634		4,667
Prior	30,298		30,298		28,872
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	171,099		171,099		167,080
Commercial Leases [Member] \| Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	583		583		0
2023/2022	0		0		0
2022/2021	4,187		4,187		0
2021/2020	0		0		0

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