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Property, Plant, and Equipment, net (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 31, 2017
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Property, Plant and Equipment [Abstract]          
Net book value, equipment no longer to be utilized $ 600        
Proceeds from disposal of property, plant and equipment $ 100     $ 77 $ 339
Impairments of equipment   $ 0 $ 0 $ 0 $ 468