Note 11 - Segment and Geographic Information - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees (Details) - USD ($)	3 Months Ended
	Nov. 30, 2020	Nov. 30, 2019
Fees	$ 1,336,561	$ 1,358,325
Percentage of Total Fees	100.00%	100.00%
GERMANY
Fees	$ 228,826	$ 212,101
Percentage of Total Fees	17.10%	15.60%
POLAND
Fees	$ 189,410	$ 194,978
Percentage of Total Fees	14.20%	14.40%
JAPAN
Fees	$ 179,962	$ 163,929
Percentage of Total Fees	13.50%	12.10%
FRANCE
Fees	$ 105,907	$ 93,631
Percentage of Total Fees	7.90%	6.90%
SWEDEN
Fees	$ 90,489	$ 109,506
Percentage of Total Fees	6.80%	8.10%
THAILAND
Fees	$ 89,932	$ 102,334
Percentage of Total Fees	6.70%	7.50%
INDIA
Fees	$ 88,208	$ 82,960
Percentage of Total Fees	6.60%	6.10%
KOREA, REPUBLIC OF
Fees	$ 85,079	$ 76,032
Percentage of Total Fees	6.40%	5.60%
FINLAND
Fees	$ 76,283	$ 67,942
Percentage of Total Fees	5.70%	5.00%
CZECHIA
Fees	$ 69,353	$ 89,014
Percentage of Total Fees	5.20%	6.60%
UNITED KINGDOM
Fees	$ 61,915	$ 85,478
Percentage of Total Fees	4.60%	6.30%
Other Countries [Member]
Fees	$ 71,197	$ 80,421
Percentage of Total Fees	5.30%	5.90%