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, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	$ 19,181	$ 18,450
Individually evaluated for impairment	1,972	102
Total Allowance for Credit Losses - Loans for impairment	21,153	18,552	$ 17,304	$ 15,815
Collectively evaluated for impairment	2,236,955	1,709,724
Individually evaluated for impairment	12,881	11,969
Loans acquired with deteriorated credit quality for impairment		3,306
Total Loans	2,248,836	1,724,999
Residential [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	310,199
Commercial [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	1,092,887
Construction [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Total Loans	195,826
Real Estate Loans [Member] | Residential [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	2,285	1,052
Individually evaluated for impairment	69	4
Total Allowance for Credit Losses - Loans for impairment	2,354	1,056	1,147	1,174
Collectively evaluated for impairment	358,358	209,869
Individually evaluated for impairment	1,632	335
Loans acquired with deteriorated credit quality for impairment		9
Total Loans	359,990	210,213
Real Estate Loans [Member] | Commercial [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	9,033	10,063
Individually evaluated for impairment	145	57
Total Allowance for Credit Losses - Loans for impairment	9,178	10,120	8,099	6,216
Collectively evaluated for impairment	1,090,217	869,038
Individually evaluated for impairment	2,670	5,675
Loans acquired with deteriorated credit quality for impairment		1,856
Total Loans	1,092,887	876,569
Real Estate Loans [Member] | Agricultural [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	3,247	4,565
Individually evaluated for impairment	17	24
Total Allowance for Credit Losses - Loans for impairment	3,264	4,589	4,729	4,953
Collectively evaluated for impairment	311,500	306,793
Individually evaluated for impairment	3,302	5,380
Loans acquired with deteriorated credit quality for impairment		1,441
Total Loans	314,802	313,614
Real Estate Loans [Member] | Construction [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	1,664	801
Individually evaluated for impairment	286	0
Total Allowance for Credit Losses - Loans for impairment	1,950	801	434	122
Collectively evaluated for impairment	193,469	80,691
Individually evaluated for impairment	2,357	0
Loans acquired with deteriorated credit quality for impairment		0
Total Loans	195,826	80,691
Consumer [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	557	131
Individually evaluated for impairment	939	4
Total Allowance for Credit Losses - Loans for impairment	1,496	135	262	321
Collectively evaluated for impairment	60,377	86,646
Individually evaluated for impairment	939	4
Loans acquired with deteriorated credit quality for impairment		0
Total Loans	61,316	86,650
Other Commercial Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	1,713	1,027
Individually evaluated for impairment	516	13
Total Allowance for Credit Losses - Loans for impairment	2,229	1,040	1,023	1,226
Collectively evaluated for impairment	134,472	63,120
Individually evaluated for impairment	1,696	102
Loans acquired with deteriorated credit quality for impairment		0
Total Loans	136,168	63,222
Other Agricultural Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	270	489
Individually evaluated for impairment	0	0
Total Allowance for Credit Losses - Loans for impairment	270	489	558	864
Collectively evaluated for impairment	30,388	34,359
Individually evaluated for impairment	285	473
Loans acquired with deteriorated credit quality for impairment		0
Total Loans	30,673	34,832
State and Political Subdivision Loans [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	45	322
Individually evaluated for impairment	0	0
Total Allowance for Credit Losses - Loans for impairment	45	322	281	479
Collectively evaluated for impairment	57,174	59,208
Individually evaluated for impairment	0	0
Loans acquired with deteriorated credit quality for impairment		0
Total Loans	57,174	59,208
Unallocated [Member]
Loans And Leases Receivable, Allowance For Loan Losses [Abstract]
Collectively evaluated for impairment	367
Individually evaluated for impairment	0
Total Allowance for Credit Losses - Loans for impairment	367	$ 0	$ 771	$ 460
Collectively evaluated for impairment	0
Individually evaluated for impairment	0
Total Loans	$ 0