Note 13 - 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	6 Months Ended
Feb. 28, 2022	Feb. 28, 2021	Feb. 28, 2022	Feb. 28, 2021
Fees	$ 1,246,909	$ 1,462,684	$ 2,505,767	$ 2,799,245
Percentage of Total Fees	100.00%	100.00%	100.00%	100.00%
GERMANY
Fees	$ 216,992	$ 231,917	$ 435,422	$ 460,744
Percentage of Total Fees	17.40%	15.90%	17.40%	16.50%
POLAND
Fees	$ 172,700	$ 210,943	$ 349,626	$ 400,353
Percentage of Total Fees	13.90%	14.40%	14.00%	14.30%
JAPAN
Fees	$ 151,933	$ 181,493	$ 318,740	$ 361,455
Percentage of Total Fees	12.20%	12.40%	12.70%	12.90%
FRANCE
Fees	$ 115,663	$ 97,638	$ 231,958	$ 203,545
Percentage of Total Fees	9.30%	6.70%	9.30%	7.30%
SWEDEN
Fees	$ 99,178	$ 146,896	$ 207,248	$ 237,385
Percentage of Total Fees	8.00%	10.00%	8.30%	8.50%
UNITED KINGDOM
Fees	$ 86,736	$ 71,759	$ 126,800	$ 163,298
Percentage of Total Fees	7.00%	4.90%	5.10%	5.80%
THAILAND
Fees	$ 87,918	$ 107,377	$ 181,663	$ 133,674
Percentage of Total Fees	7.10%	7.30%	7.20%	4.80%
KOREA, REPUBLIC OF
Fees	$ 64,173	$ 78,220	$ 175,472	$ 197,309
Percentage of Total Fees	5.10%	5.30%	7.00%	7.00%
FINLAND
Fees	$ 85,426	$ 71,496	$ 165,599	$ 147,779
Percentage of Total Fees	6.90%	4.90%	6.60%	5.30%
CZECHIA
Fees	$ 69,386	$ 89,538	$ 139,483	$ 158,891
Percentage of Total Fees	5.60%	6.10%	5.60%	5.70%
Other Countries [Member]
Fees	$ 96,804	$ 175,407	$ 173,756	$ 334,811
Percentage of Total Fees	7.50%	12.00%	6.80%	12.00%