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OTHER SHORT-TERM BORROWINGS - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Repurchase agreements      
OTHER SHORT-TERM BORROWINGS      
Percentage of pass through for Mortgage Backed Securities 100.00%    
Carrying Amount $ 3,800    
Repurchase of securities 1,900    
Interest expense 3 $ 0 $ 0
AFX      
OTHER SHORT-TERM BORROWINGS      
Interest expense $ 226 $ 45 $ 1