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Commitments and Contingencies - Supplemental Balance Sheet Information Related to Leases (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Operating Leases  
Operating lease right-of-use assets $ 4,437
Current maturities of long-term obligations 1,337
Long term obligations 3,178
Finance Leases  
Finance lease right-of-use assets 104
Current maturities of long-term obligations 24
Long term obligations $ 45