Product and Geographic Information - Revenues by Geography (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020
Revenues by geographic area
Revenues	$ 4,735	$ 6,068
Maximum percentage of total net revenues	5.00%	5.00%
United States
Revenues by geographic area
Revenues	$ 1,550	$ 2,429
Netherlands
Revenues by geographic area
Revenues	1,274	1,009
Ireland
Revenues by geographic area
Revenues	8	862
Japan
Revenues by geographic area
Revenues	504	477
Taiwan
Revenues by geographic area
Revenues	155	366
Germany
Revenues by geographic area
Revenues	380	238
China
Revenues by geographic area
Revenues	256	105
Other (individually less than 5% of total net revenues)
Revenues by geographic area
Revenues	$ 608	$ 582