Note 12 - Segment and Geographic Information - Information by Geographic Location (Details) - USD ($)	3 Months Ended	6 Months Ended
Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
Net sales	$ 19,072,066	$ 20,842,538	$ 40,410,459	$ 41,024,213
Total Fees	$ 1,070,263	$ 1,303,059	$ 2,354,382	$ 2,552,018
Total Fees percentage	100.00%	100.00%	100.00%	100.00%
Inside the USA to Unaffiliated Customers [Member]
Net sales	$ 6,668,183	$ 6,840,855	$ 14,150,801	$ 14,073,236
GERMANY
Total Fees	$ 201,728	$ 206,740	$ 408,056	$ 412,383
Total Fees percentage	18.80%	15.90%	17.30%	16.20%
POLAND
Total Fees	$ 185,499	$ 217,786	$ 405,510	$ 415,803
Total Fees percentage	17.30%	16.70%	17.20%	16.30%
JAPAN
Total Fees	$ 122,548	$ 111,995	$ 271,086	$ 248,076
Total Fees percentage	11.50%	8.60%	11.50%	9.70%
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	$ 545,484	$ 611,926	$ 1,172,245	$ 1,463,377
SWEDEN
Total Fees	$ 96,133	$ 102,984	$ 163,061	$ 213,520
Total Fees percentage	9.00%	7.90%	6.90%	8.40%
FINLAND
Total Fees	$ 69,923	$ 95,748	$ 201,382	$ 199,492
Total Fees percentage	6.50%	7.30%	8.60%	7.80%
THAILAND
Total Fees	$ 86,721	$ 90,264	$ 180,886	$ 169,702
Total Fees percentage	8.10%	6.90%	7.70%	6.60%
UNITED KINGDOM
Total Fees	$ 68,804	$ 55,101	$ 185,029	$ 118,251
Total Fees percentage	6.40%	4.20%	7.90%	4.60%
FRANCE
Total Fees	$ 70,040	$ 195,176	$ 149,104	$ 317,142
Total Fees percentage	6.50%	15.00%	6.30%	12.40%
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 11,858,399	$ 13,389,757	$ 25,087,413	$ 25,487,600
CZECHIA
Total Fees	$ 61,340	$ 84,789	$ 133,972	$ 162,601
Total Fees percentage	5.70%	6.50%	5.70%	6.40%
KOREA, REPUBLIC OF
Total Fees	$ 27,320	$ 63,381	$ 95,021	$ 138,338
Total Fees percentage	2.60%	4.90%	4.00%	5.40%
Other Countries [Member]
Net sales	$ 2,283,035	$ 3,812,566	$ 4,713,112	$ 6,373,323
Total Fees	$ 80,207	$ 79,095	$ 161,275	$ 156,710
Total Fees percentage	7.60%	6.10%	6.90%	6.10%