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GOODWILL AND INTANGIBLE ASSETS - Changes in Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Goodwill [Roll Forward]    
Beginning of year $ 21,824 $ 21,824
Acquired goodwill 0 0
End of year $ 21,824 $ 21,824