Note 13 - Segment and Geographic Information - Total Long-lived Assets by Geographic Distribution (Details) - USD ($)	May 31, 2022	Aug. 31, 2021
Total long-lived assets	$ 12,789,072	$ 12,531,031
CHINA
Total long-lived assets	5,528,663	5,110,071
Other Countries [Member]
Total long-lived assets	617,674	453,199
UNITED STATES
Total long-lived assets	$ 6,642,735	$ 6,967,761