ACQUISITIONS - Acquisition expenses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022
Business Acquisition [Line Items]
Total mergers and acquisitions expense	$ 154	$ 1,027
Salaries and employee benefits
Business Acquisition [Line Items]
Total mergers and acquisitions expense	98	479
Professional services
Business Acquisition [Line Items]
Total mergers and acquisitions expense	90	475
Technology and information systems
Business Acquisition [Line Items]
Total mergers and acquisitions expense	1	6
Data processing
Business Acquisition [Line Items]
Total mergers and acquisitions expense	(96)	(73)
Marketing
Business Acquisition [Line Items]
Total mergers and acquisitions expense	7	81
Other.
Business Acquisition [Line Items]
Total mergers and acquisitions expense	$ 54	$ 59