Condensed Consolidated Statements of Income (unaudited) - USD ($)	3 Months Ended
	Aug. 31, 2023	Aug. 31, 2022
Condensed Consolidated Statements of Income (unaudited)
Sales, net	$ 9,923,628	$ 9,090,699
Cost of goods sold	5,539,052	5,598,942
Gross profit	4,384,576	3,491,757
Research and development costs	129,074	375,346
Selling, general and administrative expenses	2,335,957	1,938,038
Operating income	1,919,545	1,178,373
Other income, net	361,318	39,998
Income before provision for income taxes	2,280,863	1,218,371
Provision for income taxes	433,000	216,000
Net income	$ 1,847,863	$ 1,002,371
Basic and diluted earnings per common share	$ 0.52	$ 0.29