Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock, Common
Equity, Attributable to Parent, Beginning Balance at May. 31, 2023		$ 102,127	$ 10,947,089	$ 42,128,256	$ (3,084,742)
Issuance of shares for employee stock purchase plan		3	2,880
Issuance of shares for employee stock option plan		38	15,761		(15,799)
Equity, Attributable to Parent, Ending Balance at Aug. 31, 2023	$ 51,943,476	102,168	10,965,730	43,976,119	(3,100,541)
Net income	1,847,863			1,847,863
Equity, Attributable to Parent, Beginning Balance at May. 31, 2024	51,246,686	104,056	12,959,531	51,127,018	(12,943,919)
Issuance of shares for employee stock purchase plan		1	2,426
Issuance of shares for employee stock option plan		19	8,567		0
Equity, Attributable to Parent, Ending Balance at Aug. 31, 2024	53,924,354	$ 104,076	$ 12,970,524	53,793,673	$ (12,943,919)
Net income	$ 2,666,655			$ 2,666,655