Note 12 - Segment and Geographic Information - Information by Geographic Location (Details) - USD ($)	3 Months Ended		9 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2026	May 31, 2025
Net sales	$ 24,215,662	$ 21,508,563	$ 69,521,265	$ 61,919,022
Poland	$ 1,033,786	$ 1,302,598	$ 3,028,942	$ 3,656,980
Poland	100.00%	100.00%	100.00%	100.00%
Inside the USA to Unaffiliated Customers [Member]
Net sales	$ 7,657,885	$ 7,341,392	$ 22,081,992	$ 21,492,193
POLAND
Poland	$ 228,036	$ 232,064	$ 650,926	$ 637,574
Poland	22.10%	17.80%	21.50%	17.40%
JAPAN
Poland	$ 158,629	$ 158,434	$ 427,787	$ 429,520
Poland	15.30%	12.20%	14.10%	11.70%
FINLAND
Poland	$ 124,349	$ 95,142	$ 375,096	$ 276,028
Poland	12.00%	7.30%	12.40%	7.60%
Joint Ventures in Which the Company is a Shareholder Directly and Indirectly Outside the USA [Member]
Net sales	$ 569,342	$ 630,653	$ 1,590,646	$ 1,802,906
THAILAND
Poland	$ 115,384	$ 87,957	$ 344,965	$ 242,212
Poland	11.20%	6.80%	11.40%	6.60%
UNITED KINGDOM
Poland	$ 92,325	$ 93,108	$ 289,228	$ 237,734
Poland	8.90%	7.20%	9.60%	6.50%
SWEDEN
Poland	$ 90,791	$ 111,138	$ 271,539	$ 295,873
Poland	8.80%	8.50%	9.00%	8.10%
Unaffiliated Customers Outside the USA [Member]
Net sales	$ 15,988,435	$ 13,536,518	$ 45,848,628	$ 38,623,923
CZECHIA
Poland	$ 89,434	$ 110,844	$ 243,323	$ 251,018
Poland	8.60%	8.50%	8.00%	6.90%
KOREA, REPUBLIC OF
Poland	$ 43,091	$ 83,697	$ 114,630	$ 217,668
Poland	4.20%	6.40%	3.80%	6.00%
GERMANY
Poland	$ 0	$ 218,943	$ 74,081	$ 626,999
Poland	0.00%	16.80%	2.40%	17.10%
Other Countries [Member]
Net sales	$ 3,448,899	$ 2,453,869	$ 10,215,532	$ 7,166,981
Poland	$ 91,747	$ 111,271	$ 237,367	$ 442,354
Poland	8.90%	8.50%	7.80%	12.10%