LOANS AND ALLOWANCE FOR CREDIT LOSSES - Past due (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Current - 29 Days Past Due	$ 938,622	$ 902,853
Total	948,451	911,078
90 Days or Greater Past Due and Still Accruing Interest	756	1,065
Financial Asset, 30 to 59 Days Past Due
Total	4,636	2,182
Financing Receivables, 60 to 89 Days Past Due
Total	223	383
Financing Receivables, Equal to Greater than 90 Days Past Due
Total	4,970	5,660
Financial Asset, Past Due
Total	9,829	8,225
Real Estate
Current - 29 Days Past Due	842,363	803,890
Total	851,801	811,493
90 Days or Greater Past Due and Still Accruing Interest	756	1,065
Real Estate | Financial Asset, 30 to 59 Days Past Due
Total	4,247	2,155
Real Estate | Financing Receivables, 60 to 89 Days Past Due
Total	221	379
Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Total	4,970	5,069
Real Estate | Financial Asset, Past Due
Total	9,438	7,603
Agricultural
Current - 29 Days Past Due	939	671
Total	939	671
90 Days or Greater Past Due and Still Accruing Interest	0	0
Agricultural | Financial Asset, 30 to 59 Days Past Due
Total	0
Agricultural | Financing Receivables, 60 to 89 Days Past Due
Total		0
Agricultural | Financing Receivables, Equal to Greater than 90 Days Past Due
Total	0	0
Commercial and Industrial
Current - 29 Days Past Due	66,727	66,312
Total	67,105	66,909
90 Days or Greater Past Due and Still Accruing Interest	0	0
Commercial and Industrial | Financial Asset, 30 to 59 Days Past Due
Total	378	6
Commercial and Industrial | Financing Receivables, 60 to 89 Days Past Due
Total		0
Commercial and Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Total	0	591
Commercial and Industrial | Financial Asset, Past Due
Total	378	597
Consumer
Current - 29 Days Past Due	6,446	5,799
Total	6,459	5,824
90 Days or Greater Past Due and Still Accruing Interest	0	0
Consumer | Financial Asset, 30 to 59 Days Past Due
Total	11	21
Consumer | Financing Receivables, 60 to 89 Days Past Due
Total	2	4
Consumer | Financing Receivables, Equal to Greater than 90 Days Past Due
Total	0	0
Consumer | Financial Asset, Past Due
Total	13	25
State and Political Subdivisions
Current - 29 Days Past Due	22,147	26,181
Total	22,147	26,181
90 Days or Greater Past Due and Still Accruing Interest	0	0
State and Political Subdivisions | Financial Asset, 30 to 59 Days Past Due
Total	0
State and Political Subdivisions | Financing Receivables, 60 to 89 Days Past Due
Total		0
State and Political Subdivisions | Financing Receivables, Equal to Greater than 90 Days Past Due
Total	$ 0	$ 0