Note 12 - Segment and Geographic Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Gross profit	$ 31,676,555	$ 33,786,362
Indirect cost of goods sold	(52,557,919)	(51,273,155)
Total joint venture operations	8,545,207	9,475,078
Selling expenses	(17,820,196)	(16,413,672)
General and administrative expenses	(14,792,988)	(14,176,494)
Research and development expenses	(5,038,281)	(4,802,791)
Interest income	308,054	118,827
Interest expense	(599,927)	(340,129)
Other income	752,971	0
Income before income tax expense	3,031,395	7,647,181
Indirect Cost of Goods Sold [Member]
Indirect cost of goods sold	(3,028,311)	(3,501,176)
Operating Segments [Member]
Gross profit	34,704,866	37,287,538
ZERUST [Member] | Operating Segments [Member]
Gross profit	26,953,091	29,468,741
NaturTec [Member] | Operating Segments [Member]
Gross profit	$ 7,751,775	$ 7,818,797