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Other Obligations (Details) - Capital lease obligations
$ in Thousands
Jun. 30, 2017
USD ($)
Future payments on capital equipment lease obligation payments  
2017 $ 1,595
2018 2,341
2019 1,689
2020 882
Total 6,507
Less: interest 271
Total principal payments 6,235
Less: current portion 2,552
Capital equipment lease obligations, net of current portion $ 3,684