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Operating Leases - Operating Leases Amount Recognized (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Operating Leases, Rent Expense $ 504 $ 501
Long Term Operating Lease [Member]    
Operating Leases, Rent Expense 443 415
Short Term Operating Lease [Member]    
Operating Leases, Rent Expense $ 61 $ 86