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GOODWILL AND INTANGIBLE ASSETS - Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Estimated amortization expense    
2022 $ 124  
2023 124  
2024 124  
2025 105  
Intangible assets, net $ 477 $ 973