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Financing Arrangements - Schedule of Future Lease Payments under Capital Leases (Details)
$ in Thousands
Mar. 31, 2018
USD ($)
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
2018 $ 129
2019 27
2020 37
Total minimum lease payments 193
Less: amount representing interest (16)
Present value of minimum lease payments $ 177