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Operating Leases - Operating Leases Amount Recognized (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Operating Leases, Rent Expense $ 478 $ 538 $ 982 $ 1,079
Long Term Operating Lease [Member]        
Operating Leases, Rent Expense 421 453 864 907
Short Term Operating Lease [Member]        
Operating Leases, Rent Expense $ 57 $ 85 $ 118 $ 172