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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Loans and Leases [Abstract]
2025/2024	$ 157,663		$ 157,663		$ 186,156
2024/2023	155,737		155,737		312,394
2023/2022	297,207		297,207		342,235
2022/2021	327,120		327,120		357,849
2021/2020	345,492		345,492		267,105
Prior	778,088		778,088		577,824
Revolving loans amortized cost	1,326,153		1,326,153		1,469,488
Revolving loans converted to term	236,176		236,176		165,337
Total net loans and leases	3,623,636		3,623,636		3,678,388
2025/2024			18		294
2024/2023			3		206
2023/2022			249		0
2022/2021			473		44
2021/2020			87		100
Prior			12		214
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	569	$ 16	842	$ 26	858
Commercial [Member]
Loans and Leases [Abstract]
2025/2024	99,839		99,839		63,216
2024/2023	40,034		40,034		117,550
2023/2022	116,142		116,142		165,013
2022/2021	162,471		162,471		209,222
2021/2020	205,809		205,809		134,254
Prior	400,192		400,192		292,496
Revolving loans amortized cost	251,513		251,513		271,701
Revolving loans converted to term	127,119		127,119		99,819
Total net loans and leases	1,403,119		1,403,119		1,353,271
2025/2024			0		0
2024/2023			0		0
2023/2022			0		0
2022/2021			175		0
2021/2020			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	175	0	175	0	0
Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	24,231		24,231		24,877
2024/2023	24,286		24,286		36,693
2023/2022	36,158		36,158		69,209
2022/2021	66,061		66,061		38,847
2021/2020	37,313		37,313		48,551
Prior	196,697		196,697		174,312
Revolving loans amortized cost	285,801		285,801		326,451
Revolving loans converted to term	49,532		49,532		32,086
Total net loans and leases	720,079		720,079		751,026
2025/2024			0		0
2024/2023			0		0
2023/2022			180		0
2022/2021			0		0
2021/2020			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	180	0	180	0	0
Residential and Home Equity [Member]
Loans and Leases [Abstract]
2025/2024	16,018		16,018		33,036
2024/2023	31,201		31,201		37,378
2023/2022	34,473		34,473		57,760
2022/2021	52,726		52,726		82,936
2021/2020	79,272		79,272		72,304
Prior	138,113		138,113		73,048
Revolving loans amortized cost	49,602		49,602		47,872
Revolving loans converted to term	443		443		65
Total net loans and leases	401,848		401,848		404,399
2025/2024			0		0
2024/2023			0		29
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	0	29
Construction [Member]
Loans and Leases [Abstract]
2025/2024	0		0		5,774
2024/2023	2,700		2,700		0
2023/2022	0		0		1,000
2022/2021	900		900		0
2021/2020	0		0		0
Prior	1,375		1,375		1,375
Revolving loans amortized cost	153,127		153,127		186,754
Revolving loans converted to term	15,725		15,725		0
Total net loans and leases	173,827		173,827		194,903
2025/2024			0		0
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	0	0
Real Estate [Member]
Loans and Leases [Abstract]
2025/2024	140,088		140,088		126,903
2024/2023	98,221		98,221		191,621
2023/2022	186,773		186,773		292,982
2022/2021	282,158		282,158		331,005
2021/2020	322,394		322,394		255,109
Prior	736,377		736,377		541,231
Revolving loans amortized cost	740,043		740,043		832,778
Revolving loans converted to term	192,819		192,819		131,970
Total net loans and leases	2,698,873		2,698,873		2,703,599
Total	355	0	355	0
Commercial & Industrial [Member]
Loans and Leases [Abstract]
2025/2024	12,588		12,588		23,235
2024/2023	23,168		23,168		41,802
2023/2022	35,477		35,477		20,132
2022/2021	18,315		18,315		16,751
2021/2020	15,043		15,043		3,525
Prior	7,616		7,616		6,573
Revolving loans amortized cost	344,607		344,607		365,386
Revolving loans converted to term	34,733		34,733		26,999
Total net loans and leases	491,547		491,547		504,403
2025/2024			0		231
2024/2023			0		176
2023/2022			69		0
2022/2021			98		44
2021/2020			53		100
Prior			12		185
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	232	0	736
Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	197		197		2,831
2024/2023	3,233		3,233		2,820
2023/2022	2,483		2,483		2,625
2022/2021	2,315		2,315		1,708
2021/2020	1,272		1,272		393
Prior	2,527		2,527		2,471
Revolving loans amortized cost	240,799		240,799		270,631
Revolving loans converted to term	8,624		8,624		6,368
Total net loans and leases	261,450		261,450		289,847
2025/2024			0		0
2024/2023			0		0
2023/2022			0		0
2022/2021			200		0
2021/2020			34		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	200	0	234	0	0
Commercial Leases [Member]
Loans and Leases [Abstract]
2025/2024	3,693		3,693		31,977
2024/2023	30,399		30,399		74,956
2023/2022	71,552		71,552		25,961
2022/2021	23,990		23,990		8,314
2021/2020	6,740		6,740		8,065
Prior	30,360		30,360		26,182
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	166,734		166,734		175,455
2025/2024			0		0
2024/2023			0		0
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
Prior			0		0
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	0	0	0	0	0
Consumer and Other [Member]
Loans and Leases [Abstract]
2025/2024	1,097		1,097		1,210
2024/2023	716		716		1,195
2023/2022	922		922		535
2022/2021	342		342		71
2021/2020	43		43		13
Prior	1,208		1,208		1,367
Revolving loans amortized cost	704		704		693
Revolving loans converted to term	0		0		0
Total net loans and leases	5,032		5,032		5,084
2025/2024			18		63
2024/2023			3		1
2023/2022			0		0
2022/2021			0		0
2021/2020			0		0
Prior			0		29
Revolving loans amortized cost			0		0
Revolving loans converted to term			0		0
Total	14	$ 16	21	$ 26	93
Pass [Member]
Loans and Leases [Abstract]
2025/2024	157,530		157,530		185,995
2024/2023	155,737		155,737		310,007
2023/2022	296,328		296,328		336,887
2022/2021	323,281		323,281		357,813
2021/2020	338,207		338,207		265,006
Prior	774,577		774,577		571,556
Revolving loans amortized cost	1,313,779		1,313,779		1,449,550
Revolving loans converted to term	233,723		233,723		162,564
Total net loans and leases	3,593,162		3,593,162		3,639,378
Pass [Member] | Commercial [Member]
Loans and Leases [Abstract]
2025/2024	99,839		99,839		63,216
2024/2023	40,034		40,034		117,550
2023/2022	116,142		116,142		163,875
2022/2021	161,515		161,515		209,222
2021/2020	198,546		198,546		134,254
Prior	400,192		400,192		292,326
Revolving loans amortized cost	248,641		248,641		270,231
Revolving loans converted to term	127,119		127,119		99,819
Total net loans and leases	1,392,028		1,392,028		1,350,493
Pass [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	24,231		24,231		24,877
2024/2023	24,286		24,286		36,693
2023/2022	36,158		36,158		69,209
2022/2021	63,301		63,301		38,847
2021/2020	37,313		37,313		46,452
Prior	193,597		193,597		169,301
Revolving loans amortized cost	280,117		280,117		309,661
Revolving loans converted to term	49,532		49,532		32,086
Total net loans and leases	708,535		708,535		727,126
Pass [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
2025/2024	16,018		16,018		33,036
2024/2023	31,201		31,201		37,378
2023/2022	34,473		34,473		57,760
2022/2021	52,692		52,692		82,936
2021/2020	79,272		79,272		72,304
Prior	138,049		138,049		72,360
Revolving loans amortized cost	49,400		49,400		47,669
Revolving loans converted to term	443		443		65
Total net loans and leases	401,548		401,548		403,508
Pass [Member] | Construction [Member]
Loans and Leases [Abstract]
2025/2024	0		0		5,774
2024/2023	2,700		2,700		0
2023/2022	0		0		1,000
2022/2021	900		900		0
2021/2020	0		0		0
Prior	1,375		1,375		1,375
Revolving loans amortized cost	153,127		153,127		186,754
Revolving loans converted to term	15,725		15,725		0
Total net loans and leases	173,827		173,827		194,903
Pass [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
2025/2024	12,588		12,588		23,235
2024/2023	23,168		23,168		39,415
2023/2022	34,598		34,598		20,065
2022/2021	18,262		18,262		16,715
2021/2020	15,021		15,021		3,525
Prior	7,282		7,282		6,192
Revolving loans amortized cost	341,009		341,009		363,947
Revolving loans converted to term	32,323		32,323		24,269
Total net loans and leases	484,251		484,251		497,363
Pass [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	197		197		2,831
2024/2023	3,233		3,233		2,820
2023/2022	2,483		2,483		2,584
2022/2021	2,279		2,279		1,708
2021/2020	1,272		1,272		393
Prior	2,527		2,527		2,471
Revolving loans amortized cost	240,781		240,781		270,595
Revolving loans converted to term	8,581		8,581		6,325
Total net loans and leases	261,353		261,353		289,727
Pass [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
2025/2024	3,693		3,693		31,977
2024/2023	30,399		30,399		74,956
2023/2022	71,552		71,552		21,859
2022/2021	23,990		23,990		8,314
2021/2020	6,740		6,740		8,065
Prior	30,360		30,360		26,182
Revolving loans amortized cost	0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	166,734		166,734		171,353
Pass [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
2025/2024	964		964		1,049
2024/2023	716		716		1,195
2023/2022	922		922		535
2022/2021	342		342		71
2021/2020	43		43		13
Prior	1,195		1,195		1,349
Revolving loans amortized cost	704		704		693
Revolving loans converted to term	0		0		0
Total net loans and leases	4,886		4,886		4,905
Special Mention [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		2,280
2023/2022	879		879		5,348
2022/2021	2,849		2,849		3
2021/2020	7,263		7,263		2,099
Prior	3,498		3,498		5,647
Revolving loans amortized cost	12,154		12,154		19,277
Revolving loans converted to term	2,453		2,453		2,543
Total net loans and leases	29,096		29,096		37,197
Special Mention [Member] | Commercial [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		1,138
2022/2021	0		0		0
2021/2020	7,263		7,263		0
Prior	0		0		170
Revolving loans amortized cost	2,872		2,872		1,470
Revolving loans converted to term	0		0		0
Total net loans and leases	10,135		10,135		2,778
Special Mention [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	2,760		2,760		0
2021/2020	0		0		2,099
Prior	3,100		3,100		5,011
Revolving loans amortized cost	5,684		5,684		16,790
Revolving loans converted to term	0		0		0
Total net loans and leases	11,544		11,544		23,900
Special Mention [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
Prior	64		64		85
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	64		64		85
Special Mention [Member] | Construction [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	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
Special Mention [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		2,280
2023/2022	879		879		67
2022/2021	53		53		3
2021/2020	0		0		0
Prior	334		334		381
Revolving loans amortized cost	3,598		3,598		1,017
Revolving loans converted to term	2,410		2,410		2,500
Total net loans and leases	7,274		7,274		6,248
Special Mention [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		41
2022/2021	36		36		0
2021/2020	0		0		0
Prior	0		0		0
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	43		43		43
Total net loans and leases	79		79		84
Special Mention [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		4,102
2022/2021	0		0		0
2021/2020	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		4,102
Special Mention [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	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
Substandard [Member]
Loans and Leases [Abstract]
2025/2024	133		133		161
2024/2023	0		0		107
2023/2022	0		0		0
2022/2021	990		990		33
2021/2020	22		22		0
Prior	13		13		621
Revolving loans amortized cost	220		220		661
Revolving loans converted to term	0		0		230
Total net loans and leases	1,378		1,378		1,813
Substandard [Member] | Commercial [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	956		956		0
2021/2020	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	956		956		0
Substandard [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	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
Substandard [Member] | Residential and Home Equity [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	34		34		0
2021/2020	0		0		0
Prior	0		0		603
Revolving loans amortized cost	202		202		203
Revolving loans converted to term	0		0		0
Total net loans and leases	236		236		806
Substandard [Member] | Construction [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	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
Substandard [Member] | Commercial & Industrial [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		107
2023/2022	0		0		0
2022/2021	0		0		33
2021/2020	22		22		0
Prior	0		0		0
Revolving loans amortized cost	0		0		422
Revolving loans converted to term	0		0		230
Total net loans and leases	22		22		792
Substandard [Member] | Agricultural [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
Prior	0		0		0
Revolving loans amortized cost	18		18		36
Revolving loans converted to term	0		0		0
Total net loans and leases	18		18		36
Substandard [Member] | Commercial Leases [Member]
Loans and Leases [Abstract]
2025/2024	0		0		0
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	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
Substandard [Member] | Consumer and Other [Member]
Loans and Leases [Abstract]
2025/2024	133		133		161
2024/2023	0		0		0
2023/2022	0		0		0
2022/2021	0		0		0
2021/2020	0		0		0
Prior	13		13		18
Revolving loans amortized cost	0		0		0
Revolving loans converted to term	0		0		0
Total net loans and leases	$ 146		$ 146		$ 179