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		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	$ 133,301		$ 133,301		$ 338,204
2023/2022	319,842		319,842		371,281
2022/2021	352,479		352,479		391,245
2021/2020	364,964		364,964		291,260
2020/2019	274,953		274,953		106,279
Prior	591,146		591,146		549,753
Revolving loans amortized cost	1,497,846		1,497,846		1,484,651
Revolving loans converted to term	169,578		169,578		122,016
Total net loans and leases	3,704,109		3,704,109		3,654,689
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			50		41
2023/2022			131		3
2022/2021			0		0
2021/2020			0		0
2020/2019			100		0
Prior			0		16
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	255	$ 15	281	$ 47	60
Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	133,148		133,148		335,552
2023/2022	317,377		317,377		368,807
2022/2021	348,217		348,217		386,267
2021/2020	364,919		364,919		290,200
2020/2019	272,852		272,852		104,248
Prior	578,672		578,672		536,012
Revolving loans amortized cost	1,476,916		1,476,916		1,475,423
Revolving loans converted to term	166,779		166,779		121,973
Total net loans and leases	3,658,880		3,658,880		3,618,482
Special Mention [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	0		0		2,500
2023/2022	2,465		2,465		2,474
2022/2021	4,262		4,262		4,978
2021/2020	11		11		1,060
2020/2019	2,101		2,101		2,026
Prior	11,748		11,748		11,931
Revolving loans amortized cost	19,885		19,885		9,228
Revolving loans converted to term	2,799		2,799		43
Total net loans and leases	43,271		43,271		34,240
Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	153		153		152
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	34		34		0
2020/2019	0		0		5
Prior	726		726		1,810
Revolving loans amortized cost	1,045		1,045		0
Revolving loans converted to term	0		0		0
Total net loans and leases	1,958		1,958		1,967
Real Estate [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	90,735		90,735		200,440
2023/2022	194,683		194,683		307,938
2022/2021	297,573		297,573		351,115
2021/2020	335,963		335,963		273,351
2020/2019	261,865		261,865		96,407
Prior	550,905		550,905		510,191
Revolving loans amortized cost	831,161		831,161		831,542
Revolving loans converted to term	129,019		129,019		98,297
Total net loans and leases	2,691,904		2,691,904		2,669,281
Real Estate [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	2,659,467		2,659,467		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	31,523		31,523		18,540
Real Estate [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
Total net loans and leases	914		914		1,310
Commercial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	44,140		44,140		121,418
2023/2022	118,495		118,495		171,566
2022/2021	167,481		167,481		221,708
2021/2020	212,230		212,230		143,502
2020/2019	138,838		138,838		67,505
Prior	302,688		302,688		263,560
Revolving loans amortized cost	265,197		265,197		250,687
Revolving loans converted to term	96,588		96,588		74,982
Total net loans and leases	1,345,657		1,345,657		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	44,140		44,140		121,418
2023/2022	118,495		118,495		169,171
2022/2021	167,481		167,481		221,708
2021/2020	212,230		212,230		143,502
2020/2019	138,838		138,838		67,505
Prior	302,518		302,518		261,344
Revolving loans amortized cost	263,727		263,727		249,087
Revolving loans converted to term	96,588		96,588		74,982
Total net loans and leases	1,344,017		1,344,017		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	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	170		170		2,216
Revolving loans amortized cost	1,470		1,470		1,600
Revolving loans converted to term	0		0		0
Total net loans and leases	1,640		1,640		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
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	16,595		16,595		37,849
2023/2022	36,868		36,868		71,367
2022/2021	69,600		69,600		40,848
2021/2020	39,312		39,312		51,039
2020/2019	49,188		49,188		14,028
Prior	170,770		170,770		175,527
Revolving loans amortized cost	322,578		322,578		328,105
Revolving loans converted to term	32,363		32,363		23,246
Total net loans and leases	737,274		737,274		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	16,595		16,595		37,849
2023/2022	36,868		36,868		71,367
2022/2021	69,600		69,600		40,848
2021/2020	39,312		39,312		50,445
2020/2019	47,087		47,087		12,008
Prior	159,697		159,697		165,267
Revolving loans amortized cost	305,970		305,970		328,105
Revolving loans converted to term	32,363		32,363		23,246
Total net loans and leases	707,492		707,492		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	2,101		2,101		2,020
Prior	11,073		11,073		9,715
Revolving loans amortized cost	16,608		16,608		0
Revolving loans converted to term	0		0		0
Total net loans and leases	29,782		29,782		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	0		0		545
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	0		0		545
Residential and Home Equity [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	24,213		24,213		41,173
2023/2022	39,320		39,320		62,505
2022/2021	58,992		58,992		88,559
2021/2020	84,421		84,421		78,810
2020/2019	73,839		73,839		13,299
Prior	75,872		75,872		71,104
Revolving loans amortized cost	46,371		46,371		44,463
Revolving loans converted to term	68		68		69
Total net loans and leases	403,096		403,096		399,982
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			29		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	29	0	29	14	14
Residential and Home Equity [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	24,213		24,213		41,173
2023/2022	39,320		39,320		62,505
2022/2021	58,992		58,992		88,559
2021/2020	84,421		84,421		78,810
2020/2019	73,839		73,839		13,299
Prior	75,063		75,063		70,339
Revolving loans amortized cost	46,165		46,165		44,463
Revolving loans converted to term	68		68		69
Total net loans and leases	402,081		402,081		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	101		101		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	101		101		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	708		708		765
Revolving loans amortized cost	206		206		0
Revolving loans converted to term	0		0		0
Total net loans and leases	914		914		765
Construction [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	5,787		5,787		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	1,575		1,575		0
Revolving loans amortized cost	197,015		197,015		208,287
Revolving loans converted to term	0		0		0
Total net loans and leases	205,877		205,877		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	5,787		5,787		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	1,575		1,575		0
Revolving loans amortized cost	197,015		197,015		208,287
Revolving loans converted to term	0		0		0
Total net loans and leases	205,877		205,877		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
Commercial & Industrial [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	18,779		18,779		51,662
2023/2022	43,748		43,748		25,822
2022/2021	22,730		22,730		26,598
2021/2020	18,132		18,132		7,659
2020/2019	4,339		4,339		4,123
Prior	7,443		7,443		7,150
Revolving loans amortized cost	386,183		386,183		357,021
Revolving loans converted to term	29,210		29,210		19,338
Total net loans and leases	530,564		530,564		499,373
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			0		0
2023/2022			100		0
2022/2021			0		0
2021/2020			0		0
2020/2019			100		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total			200		0
Commercial & Industrial [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	18,779		18,779		49,162
2023/2022	41,283		41,283		25,795
2022/2021	22,657		22,657		21,695
2021/2020	18,087		18,087		7,193
2020/2019	4,339		4,339		4,123
Prior	7,039		7,039		6,674
Revolving loans amortized cost	383,585		383,585		352,502
Revolving loans converted to term	26,454		26,454		19,295
Total net loans and leases	522,223		522,223		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	2,465		2,465		27
2022/2021	73		73		4,903
2021/2020	11		11		466
2020/2019	0		0		0
Prior	404		404		0
Revolving loans amortized cost	1,798		1,798		4,519
Revolving loans converted to term	2,756		2,756		43
Total net loans and leases	7,507		7,507		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	34		34		0
2020/2019	0		0		0
Prior	0		0		476
Revolving loans amortized cost	800		800		0
Revolving loans converted to term	0		0		0
Total net loans and leases	834		834		476
Agricultural [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	1,207		1,207		3,013
2023/2022	3,481		3,481		4,637
2022/2021	3,754		3,754		2,371
2021/2020	1,828		1,828		688
2020/2019	431		431		1,031
Prior	2,621		2,621		2,116
Revolving loans amortized cost	279,754		279,754		295,500
Revolving loans converted to term	11,349		11,349		4,381
Total net loans and leases	304,425		304,425		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	1,207		1,207		3,013
2023/2022	3,481		3,481		4,585
2022/2021	3,710		3,710		2,296
2021/2020	1,828		1,828		688
2020/2019	431		431		1,026
Prior	2,621		2,621		2,116
Revolving loans amortized cost	279,706		279,706		292,391
Revolving loans converted to term	11,306		11,306		4,381
Total net loans and leases	304,290		304,290		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	44		44		75
2021/2020	0		0		0
2020/2019	0		0		0
Prior	0		0		0
Revolving loans amortized cost	9		9		3,109
Revolving loans converted to term	43		43		0
Total net loans and leases	96		96		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	0		0		0
Revolving loans amortized cost	39		39		0
Revolving loans converted to term	0		0		0
Total net loans and leases	39		39		5
Commercial Leases [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	21,673		21,673		81,287
2023/2022	76,638		76,638		31,954
2022/2021	27,791		27,791		10,786
2021/2020	8,880		8,880		9,514
2020/2019	8,302		8,302		4,673
Prior	28,709		28,709		28,872
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	171,993		171,993		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	21,673		21,673		81,287
2023/2022	76,638		76,638		31,954
2022/2021	23,646		23,646		10,786
2021/2020	8,880		8,880		9,514
2020/2019	8,302		8,302		4,667
Prior	28,709		28,709		28,872
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	167,848		167,848		167,080
Commercial Leases [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	4,145		4,145		0
2021/2020	0		0		0
2020/2019	0		0		6
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	4,145		4,145		6
Commercial Leases [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
Consumer and Other [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	907		907		1,802
2023/2022	1,292		1,292		930
2022/2021	631		631		375
2021/2020	161		161		48
2020/2019	16		16		45
Prior	1,468		1,468		1,424
Revolving loans amortized cost	748		748		588
Revolving loans converted to term	0		0		0
Total net loans and leases	5,223		5,223		5,212
Financing Receivable, Current Period Gross Charge-offs [Abstract]
2024/2023			50		41
2023/2022			2		3
2022/2021			0		0
2021/2020			0		0
2020/2019			0		0
Prior			0		2
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	26	$ 15	52	$ 33	46
Consumer and Other [Member] | Pass [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	754		754		1,650
2023/2022	1,292		1,292		930
2022/2021	631		631		375
2021/2020	161		161		48
2020/2019	16		16		45
Prior	1,450		1,450		1,400
Revolving loans amortized cost	748		748		588
Revolving loans converted to term	0		0		0
Total net loans and leases	5,052		5,052		5,036
Consumer and Other [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
Consumer and Other [Member] | Substandard [Member]
Outstanding Loan Balances by Credit Quality Indicators and Vintage Year [Abstract]
2024/2023	153		153		152
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
2020/2019	0		0		0
Prior	18		18		24
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	$ 171		$ 171		$ 176