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Other Obligations (Details) - Capital lease obligations
$ in Thousands
Sep. 30, 2017
USD ($)
Future payments on capital equipment lease obligation payments  
2017 $ 1,010
2018 2,236
2019 1,689
2020 879
Total 5,814
Less: interest 226
Total principal payments 5,588
Less: current portion 2,555
Capital equipment lease obligations, net of current portion $ 3,033