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INVESTMENTS - Amounts Due to and and Due from Vasconia (Details) - Grupo Vasconia S.A.B. - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Prepaid expenses and other current assets    
Schedule of Equity Method Investments [Line Items]    
Amounts due from Vasconia $ 69 $ 55
Accrued expenses and Accounts payable    
Schedule of Equity Method Investments [Line Items]    
Amounts due to Vasconia $ (58) $ (91)