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Note 13 - Segment and Geographic Information - Fees for Services Provided to Joint Ventures by Geographic Location as a Percentage of Total Fees (Details) - USD ($)
 12 Months Ended
Aug. 31, 2022
Aug. 31, 2021
Fees $ 5,767,682 $ 5,964,260
Percentage of Total Fees 100.00% 100.00%
GERMANY    
Fees $ 834,725 $ 920,902
Percentage of Total Fees 14.50% 15.40%
POLAND    
Fees $ 730,523 $ 798,570
Percentage of Total Fees 12.70% 13.40%
JAPAN    
Fees $ 669,371 $ 826,403
Percentage of Total Fees 11.60% 13.90%
FRANCE    
Fees $ 448,579 $ 435,032
Percentage of Total Fees 7.80% 7.30%
SWEDEN    
Fees $ 447,441 $ 528,755
Percentage of Total Fees 7.80% 8.90%
THAILAND    
Fees $ 344,649 $ 399,563
Percentage of Total Fees 6.00% 6.70%
UNITED KINGDOM    
Fees $ 342,488 $ 316,786
Percentage of Total Fees 5.90% 5.30%
FINLAND    
Fees $ 340,783 $ 298,663
Percentage of Total Fees 5.90% 5.00%
CZECHIA    
Fees $ 300,257 $ 377,395
Percentage of Total Fees 5.20% 6.30%
KOREA, REPUBLIC OF    
Fees $ 270,309 $ 317,042
Percentage of Total Fees 4.70% 5.30%
INDONESIA    
Fees $ 156,476 $ 122,513
Percentage of Total Fees 2.70% 2.10%
INDIA    
Fees $ 0 $ 392,074
Percentage of Total Fees 0.00% 6.60%
Other Countries [Member]    
Fees $ 882,081 $ 230,562
Percentage of Total Fees 15.20% 3.80%