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Refers to period of mortgage on residential real estate, measured in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Real estate loans serviced for Freddie Mac and Fannie Mae, which are not included in the consolidated balance sheet.

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Real estate loans sold to Freddie Mac and Fannie Mae without recourse which are not included in the consolidated balance sheet.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of unamortized loan commitment, origination, and other costs (fees) on financing receivable recognized as adjustment to yield. Excludes financing receivable covered under loss sharing agreement.

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Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES, Primary Segments Portfolio and Accretable Yield for PCI Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	$ 2,313,242	$ 2,248,836
Allowance for Credit Losses	21,699	21,153	$ 18,552	$ 17,304
Net loans	2,291,543	2,227,683
Net unamortized loan fees and costs	2,587	2,843
Real estate loans serviced for Freddie Mac and Fannie Mae	193,507	203,709
Real estate loans sold to Freddie Mac and Fannie Mae without recourse	184,578	193,548
Portfolio balance under MPF	8,929	10,161
First-loss position for MPF maintained by FHLB	168
Credit enhancement for MPF by FHLB	$ 229
First Mortgage [Member] \| Minimum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate	15 years
First Mortgage [Member] \| Maximum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate	30 years
Second Mortgage [Member] \| Maximum [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Period of mortgage on real estate	15 years
Residential [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	$ 301,735	310,199
Commercial [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	1,121,435	1,092,887
Construction [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	164,326	195,826
Real Estate Loans [Member] \| Residential [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	351,398	359,990
Allowance for Credit Losses	1,940	2,354	1,056	1,147
Real Estate Loans [Member] \| Commercial [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	1,121,435	1,092,887
Allowance for Credit Losses	9,174	9,178	10,120	8,099
Real Estate Loans [Member] \| Agricultural [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	327,722	314,802
Allowance for Credit Losses	3,529	3,264	4,589	4,729
Real Estate Loans [Member] \| Construction [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	164,326	195,826
Allowance for Credit Losses	1,402	1,950	801	434
Consumer [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	133,207	61,316
Allowance for Credit Losses	1,405	1,496	135	262
Other Commercial Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	131,310	136,168
Allowance for Credit Losses	3,699	2,229	1,040	1,023
Other Agricultural Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	29,662	30,673
Allowance for Credit Losses	133	270	489	558
State and Political Subdivision Loans [Member]
Segments of loan portfolio and allowance for loan losses [Abstract]
Total loans	54,182	57,174
Allowance for Credit Losses	$ 61	$ 45	$ 322	$ 281