Note 11 - Segment and Geographic Information - Net Sales by Geographic Location (Details) - USD ($)	12 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Net sales	$ 79,902,952	$ 74,158,890
Inside the USA to Unaffiliated Customers [Member]
Net sales	28,554,354	25,301,067
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	3,401,910	2,968,089
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 47,946,688	$ 45,889,734