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DEBT (Principal Commitments) (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
DEBT [Abstract]    
2020 $ 5,733  
2021 1,913  
2022 121,879  
2023 1,846  
2024 1,813  
Thereafter 83,197  
Net premium and debt issue costs (7,272)  
Total $ 223,653 $ 201,816