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Segment Information (Long-Lived Assets By Country) (Details) - USD ($)
$ in Thousands
Aug. 31, 2022
Aug. 31, 2021
Segment Reporting Information [Line Items]    
Long-Lived Assets $ 27,219 $ 31,629
United States/Canada [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 24,179 27,038
China [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 1,375 2,133
Japan [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 983 1,238
United Kingdom [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 425 702
Australia [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets 155 160
Germany, Switzerland, And Austria [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets $ 102 120
Singapore [Member]    
Segment Reporting Information [Line Items]    
Long-Lived Assets   $ 238