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Loans, Primary Segments Portfolio and Accretable Yield for PCI Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	$ 1,595,376		$ 1,595,376		$ 1,441,533
Individually evaluated for impairment	12,776		12,776		15,533
Loans acquired with deteriorated credit quality	3,607		3,607		3,802
Collectively evaluated for impairment	1,578,993		1,578,993		1,422,198
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Allowance for loan losses	17,570		17,570		17,304
Individually evaluated for impairment	129		129		121
Allowance for loan losses related to loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	17,441		17,441		17,183
Loans and Leases Receivable, Net Amount [Abstract]
Net loans	1,577,806		1,577,806		1,424,229
Net loans, individually evaluated for impairment	12,647		12,647		15,412
Net loans, loans acquired with deteriorated credit quality	3,607		3,607		3,802
Net loans, collectively evaluated for impairment	1,561,552		1,561,552		1,405,015
Loans originated					24,300
Outstanding principal balances	0		0		6,800
Maximum amount of loan forgiven by guidance from SBA			150
Changes in the accretable yield for purchased credit-impaired loans [Roll Forward]
Balance at beginning of period	395	$ 688	370	$ 788	788
Reclassification of non-accretable discount	0	0	228	0
Accretion	(117)	(104)	(320)	(204)
Balance at end of period	278	$ 584	278	$ 584	370
Loans acquired with specific evidence of deterioration in credit quality [Abstract]
Outstanding balance	6,432		6,432		6,159
Carrying amount	3,607		$ 3,607		3,802
Minimum [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Number of days past for loan to be considered impaired, Minimum			90 days
First Mortgage [Member] | Minimum [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Period of mortgage on real estate			15 years
First Mortgage [Member] | Maximum [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Period of mortgage on real estate			30 years
Second Mortgage [Member] | Maximum [Member]
Loans and Leases Receivable, Net Amount [Abstract]
Period of mortgage on real estate			15 years
Real Estate Loans [Member] | Residential [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	203,323		$ 203,323		201,097
Individually evaluated for impairment	676		676		620
Loans acquired with deteriorated credit quality	10		10		14
Collectively evaluated for impairment	202,637		202,637		200,463
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	11		11		12
Collectively evaluated for impairment	1,004		1,004		1,135
Real Estate Loans [Member] | Commercial [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	798,528		798,528		687,338
Individually evaluated for impairment	5,842		5,842		8,381
Loans acquired with deteriorated credit quality	2,035		2,035		2,145
Collectively evaluated for impairment	790,651		790,651		676,812
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	77		77		61
Collectively evaluated for impairment	9,139		9,139		8,038
Real Estate Loans [Member] | Agricultural [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	313,700		313,700		312,011
Individually evaluated for impairment	5,225		5,225		5,355
Loans acquired with deteriorated credit quality	1,562		1,562		1,643
Collectively evaluated for impairment	306,913		306,913		305,013
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	26		26		14
Collectively evaluated for impairment	4,458		4,458		4,715
Real Estate Loans [Member] | Construction [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	71,414		71,414		55,036
Individually evaluated for impairment	0		0		0
Loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	71,414		71,414		55,036
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	563		563		434
Consumer [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	50,319		50,319		25,858
Individually evaluated for impairment	0		0		0
Loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	50,319		50,319		25,858
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	464		464		262
Other Commercial Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	65,772		65,772		74,585
Individually evaluated for impairment	169		169		186
Loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	65,603		65,603		74,399
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	15		15		34
Collectively evaluated for impairment	1,158		1,158		989
Other Agricultural Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	32,870		32,870		39,852
Individually evaluated for impairment	864		864		991
Loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	32,006		32,006		38,861
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	446		446		558
State and Political Subdivision Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total financing receivables	59,450		59,450		45,756
Individually evaluated for impairment	0		0		0
Loans acquired with deteriorated credit quality	0		0		0
Collectively evaluated for impairment	59,450		59,450		45,756
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	323		323		$ 281
MidCoast Community Bancorp, Inc [Member]
Loans acquired with specific evidence of deterioration in credit quality [Abstract]
Carrying amount	$ 3,333		$ 3,333

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Amount of reclassified non-accretable discount recognized for the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities, with evidence of deterioration of credit quality.

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