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Segment Information (Long-Lived Assets By Country) (Details) - USD ($)
$ in Thousands
Aug. 31, 2017
Aug. 31, 2016
Segment Reporting Information [Line Items]    
Long-Lived Assets $ 36,655 $ 29,796
United States/Canada [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 33,146 27,288
Japan [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 2,350 2,045
Australia [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 466 349
China [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 301  
United Kingdom [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 240 $ 114
Singapore [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets $ 152