LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES, Allowance for Credit Losses - Loans and Amortized Cost Basis of Loans Under CECL Methodology (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	$ 19,796	$ 19,181
Individually evaluated for impairment	1,903	1,972
Total Allowance for Credit Losses - Loans for impairment	21,699	21,153	$ 18,552	$ 17,304
Collectively evaluated for impairment	2,287,674	2,235,955
Individually evaluated for impairment	25,568	12,881
Total Loans	2,313,242	2,248,836
Residential [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	301,735	310,199
Commercial [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	1,121,435	1,092,887
Construction [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	164,326	195,826
Real Estate Loans [Member] \| Residential [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	1,902	2,285
Individually evaluated for impairment	38	69
Total Allowance for Credit Losses - Loans for impairment	1,940	2,354	1,056	1,147
Collectively evaluated for impairment	349,909	358,358
Individually evaluated for impairment	1,489	1,632
Total Loans	351,398	359,990
Real Estate Loans [Member] \| Commercial [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	9,070	9,033
Individually evaluated for impairment	104	145
Total Allowance for Credit Losses - Loans for impairment	9,174	9,178	10,120	8,099
Collectively evaluated for impairment	1,105,847	1,090,217
Individually evaluated for impairment	15,588	2,670
Total Loans	1,121,435	1,092,887
Real Estate Loans [Member] \| Agricultural [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	3,529	3,247
Individually evaluated for impairment	0	17
Total Allowance for Credit Losses - Loans for impairment	3,529	3,264	4,589	4,729
Collectively evaluated for impairment	323,660	311,500
Individually evaluated for impairment	4,062	3,302
Total Loans	327,722	314,802
Real Estate Loans [Member] \| Construction [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	1,402	1,664
Individually evaluated for impairment	0	286
Total Allowance for Credit Losses - Loans for impairment	1,402	1,950	801	434
Collectively evaluated for impairment	164,043	193,469
Individually evaluated for impairment	283	2,357
Total Loans	164,326	195,826
Consumer [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	391	557
Individually evaluated for impairment	1,014	939
Total Allowance for Credit Losses - Loans for impairment	1,405	1,496	135	262
Collectively evaluated for impairment	132,180	60,377
Individually evaluated for impairment	1,027	939
Total Loans	133,207	61,316
Other Commercial Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	2,952	1,713
Individually evaluated for impairment	747	516
Total Allowance for Credit Losses - Loans for impairment	3,699	2,229	1,040	1,023
Collectively evaluated for impairment	128,728	134,472
Individually evaluated for impairment	2,582	1,696
Total Loans	131,310	136,168
Other Agricultural Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	133	270
Individually evaluated for impairment	0	0
Total Allowance for Credit Losses - Loans for impairment	133	270	489	558
Collectively evaluated for impairment	29,125	30,388
Individually evaluated for impairment	537	285
Total Loans	29,662	30,673
State and Political Subdivision Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	61	45
Individually evaluated for impairment	0	0
Total Allowance for Credit Losses - Loans for impairment	61	45	322	281
Collectively evaluated for impairment	54,182	57,174
Individually evaluated for impairment	0	0
Total Loans	54,182	57,174
Unallocated [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	356	367
Individually evaluated for impairment	0	0
Total Allowance for Credit Losses - Loans for impairment	356	367	$ 0	$ 771
Collectively evaluated for impairment	0	0
Individually evaluated for impairment	0	0
Total Loans	$ 0	$ 0

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