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LEASES - Maturities of lease liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Maturities of lease liabilities - Operating Leases    
2022 $ 2,613  
2023 1,762  
2024 1,152  
2025 871  
2026 186  
Total lease payments 6,584  
Less imputed interest (583)  
Total 6,001 $ 6,882
Maturities of lease liabilities - Finance Leases    
2022 399  
2023 43  
2024 11  
2025 8  
Total lease payments 461  
Less imputed interest (5)  
Total $ 456 $ 196