Note 11 - Segment and Geographic Information - Total Long-lived Assets by Geographic Distribution (Details) - USD ($)	Nov. 30, 2020	Aug. 31, 2020
Total long-lived assets	$ 7,224,297	$ 7,110,789
CHINA
Total long-lived assets	367,953	376,088
Other Countries [Member]
Total long-lived assets	420,228	172,833
UNITED STATES
Total long-lived assets	$ 6,436,116	$ 6,561,868