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Intangible Assets and Goodwill (Tables)
 9 Months Ended
May 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Intangible Assets and Goodwill
As of
 
May 31, 2018
 
August 31, 2017
 
 
Gross
Amount
 
Accumulated
Amortization
 
Gross
Amount
 
Accumulated
Amortization
Amortizing assets
 
 
 
 
 
 
 
 
Product and process technology
 
$
573

 
$
(347
)
 
$
756

 
$
(477
)
Non-amortizing assets
 
 
 
 
 
 
 
 
In-process R&D
 
108

 
—

 
108

 
—

 
 
 
 
 
 
 
 
 
Total intangible assets
 
$
681

 
$
(347
)
 
$
864

 
$
(477
)
 
 
 
 
 
 
 
 
 
Goodwill
 
$
1,228

 
 
 
$
1,228