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Note 11 - 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, 2019	Aug. 31, 2018
Fees	$ 5,727,579	$ 6,142,139
GERMANY
Fees	852,526	900,316
JAPAN
Fees	748,489	759,418
POLAND
Fees	704,942	775,319
SWEDEN
Fees	589,654	600,336
FRANCE
Fees	430,537	532,565
THAILAND
Fees	418,334	429,319
INDIA
Fees	350,171	365,018
KOREA, REPUBLIC OF
Fees	346,244	370,171
CZECH REPUBLIC
Fees	345,798	377,844
UNITED KINGDOM
Fees	319,671	352,585
FINLAND
Fees	281,296	320,501
Other Countries [Member]
Fees	$ 339,917	$ 358,747