Note 12 - Segment and Geographic Information - Information by Geographic Location (Details) - USD ($)	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Net sales	$ 84,234,474	$ 85,059,517
Total Fees	$ 5,006,151	$ 5,251,782
Total Fees percentage	100.00%	100.00%
Inside the USA to Unaffiliated Customers [Member]
Net sales	$ 29,547,889	$ 30,492,665
GERMANY
Total Fees	$ 846,281	$ 828,932
Total Fees percentage	16.90%	15.80%
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	$ 2,368,099	$ 2,228,894
POLAND
Total Fees	$ 840,467	$ 849,736
Total Fees percentage	16.80%	16.20%
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 52,318,486	$ 52,337,958
JAPAN
Total Fees	$ 647,573	$ 582,674
Total Fees percentage	12.90%	11.10%
FINLAND
Total Fees	$ 411,268	$ 395,515
Total Fees percentage	8.20%	7.50%
UNITED KINGDOM
Total Fees	$ 404,342	$ 375,150
Total Fees percentage	8.10%	7.10%
THAILAND
Total Fees	$ 371,175	$ 332,148
Total Fees percentage	7.40%	6.30%
SWEDEN
Total Fees	$ 330,205	$ 445,560
Total Fees percentage	6.60%	8.50%
FRANCE
Total Fees	$ 320,546	$ 485,627
Total Fees percentage	6.40%	9.20%
CZECHIA
Total Fees	$ 303,869	$ 338,195
Total Fees percentage	6.10%	6.40%
KOREA, REPUBLIC OF
Total Fees	$ 186,669	$ 258,314
Total Fees percentage	3.70%	4.90%
INDONESIA
Total Fees	$ 137,125	$ 166,053
Total Fees percentage	2.70%	3.20%
Other Countries [Member]
Net sales	$ 9,255,207	$ 12,137,925
Total Fees	$ 206,631	$ 193,877
Total Fees percentage	4.20%	3.70%