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LEASE LIABILITIES - Maturity (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Operating lease obligations    
2021 $ 228  
2022 230  
2023 234  
2024 156  
Total 848  
Finance lease obligations    
2021 2,467  
2022 2,186  
2023 274  
2024 24  
Total 4,951  
Lease obligations    
2021 2,695  
2022 2,416  
2023 508  
2024 180  
Total 5,799  
Less: Imputed interest (303)  
Total $ 5,496 $ 7,133