Segment Information (Long-Lived Assets By Countries) (Details) - USD ($) $ in Thousands	Aug. 31, 2020	Aug. 31, 2019
Segment Reporting Information [Line Items]
Long-lived assets	$ 32,428	$ 33,777
United States/Canada [Member]
Segment Reporting Information [Line Items]
Long-lived assets	28,327	31,129
Japan [Member]
Segment Reporting Information [Line Items]
Long-lived assets	1,537	1,456
China [Member]
Segment Reporting Information [Line Items]
Long-lived assets	1,307	441
United Kingdom [Member]
Segment Reporting Information [Line Items]
Long-lived assets	720	207
Germany, Switzerland, And Austria [Member]
Segment Reporting Information [Line Items]
Long-lived assets	240	10
Singapore [Member]
Segment Reporting Information [Line Items]
Long-lived assets	158	370
Australia [Member]
Segment Reporting Information [Line Items]
Long-lived assets	$ 139	$ 164