Note 11 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Net sales	$ 20,181,675	$ 19,952,766
Inside the USA to Unaffiliated Customers [Member]
Net sales	12,097,843	7,478,161
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	851,452	633,465
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 7,232,380	$ 11,841,140