FAIR VALUE - Summary of Assets Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	$ 3,200	$ 3,300
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	5,026	5,864
Mortgage servicing rights		536
Fair Value, Measurements, Nonrecurring | Commercial real estate | Owner occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	807	1,664
Fair Value, Measurements, Nonrecurring | Commercial real estate | Non-owner occupied residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	106	31
Fair Value, Measurements, Nonrecurring | Acquisition and development | Commercial and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	748	832
Fair Value, Measurements, Nonrecurring | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	2,547	2,494
Fair Value, Measurements, Nonrecurring | Residential mortgage | First lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	812	834
Fair Value, Measurements, Nonrecurring | Residential mortgage | Home equity - lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	6	9
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Mortgage servicing rights		0
Fair Value, Measurements, Nonrecurring | Level 1 | Commercial real estate | Owner occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Commercial real estate | Non-owner occupied residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Acquisition and development | Commercial and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Residential mortgage | First lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 1 | Residential mortgage | Home equity - lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Mortgage servicing rights		0
Fair Value, Measurements, Nonrecurring | Level 2 | Commercial real estate | Owner occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Commercial real estate | Non-owner occupied residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Acquisition and development | Commercial and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Residential mortgage | First lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 2 | Residential mortgage | Home equity - lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	0	0
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	5,026	5,864
Mortgage servicing rights		536
Fair Value, Measurements, Nonrecurring | Level 3 | Commercial real estate | Owner occupied
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	807	1,664
Fair Value, Measurements, Nonrecurring | Level 3 | Commercial real estate | Non-owner occupied residential
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	106	31
Fair Value, Measurements, Nonrecurring | Level 3 | Acquisition and development | Commercial and land development
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	748	832
Fair Value, Measurements, Nonrecurring | Level 3 | Commercial and industrial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	2,547	2,494
Fair Value, Measurements, Nonrecurring | Level 3 | Residential mortgage | First lien
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	812	834
Fair Value, Measurements, Nonrecurring | Level 3 | Residential mortgage | Home equity - lines of credit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total individually evaluated loans	$ 6	$ 9