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Derivative Liability (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]        
Balance at beginning      
Initial value of derivative liability     1,055  
Change in fair value of derivative liability $ 270 349
Foreign currency translation     35  
Balance at end $ 1,439   $ 1,439