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Cash and cash equivalents and Restricted cash (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Jun. 30, 2022
Dec. 31, 2021
Cash and cash equivalents [abstract]        
Cash on hand $ 53 $ 36    
Cash at banks 53,181 52,797    
Total $ 53,234 $ 52,833 $ 43,638 $ 45,213