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LEASES - Maturities of operating lease liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
LEASES    
2022 $ 3,906  
2023 2,963  
2024 2,073  
2025 1,358  
2026 1,009  
Thereafter 719  
Total lease payments 12,028  
Less imputed interest (915)  
Present value of lease liabilities $ 11,113 $ 11,979