ACQUISITIONS - Acquisition expenses (Details) $ in Thousands	Mar. 31, 2022 USD ($)
Business Acquisition [Line Items]
Total mergers and acquisitions expense	$ 527
Salaries and employee benefits
Business Acquisition [Line Items]
Total mergers and acquisitions expense	229
Professional services
Business Acquisition [Line Items]
Total mergers and acquisitions expense	112
Marketing
Business Acquisition [Line Items]
Total mergers and acquisitions expense	70
Data processing
Business Acquisition [Line Items]
Total mergers and acquisitions expense	115
Other.
Business Acquisition [Line Items]
Total mergers and acquisitions expense	$ 1