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Related Party Transactions (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
General and Administrative Expense | Related Party Lease Agreements        
Related Party Transaction [Line Items]        
SG&A expense $ 21 $ 21 $ 42 $ 42