Note 12 - Segment and Geographic Information - Cost of Goods Sold by Segment (Details) - USD ($)	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Cost of goods sold	$ 52,557,919	$ 51,273,155
Direct Cost of Goods Sold [Member] | ZERUST [Member]
Cost of goods sold	35,535,306	33,623,834
Direct Cost of Goods Sold [Member] | NaturTec [Member]
Cost of goods sold	13,994,302	14,148,145
Indirect Cost of Goods Sold [Member]
Cost of goods sold	$ 3,028,311	$ 3,501,176