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ACQUISITIONS - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Jun. 30, 2021
Dec. 31, 2020
Business Acquisition [Line Items]          
Goodwill $ 30,400 $ 30,400 $ 30,588 $ 24,191 $ 24,191
Acquisition cost $ 347 $ 874      
Teton Financial Services          
Business Acquisition [Line Items]          
Purchase consideration     51,319    
Goodwill     $ 6,209