9. Sales: Disaggregation of Sales Revenue (Details) - USD ($)		12 Months Ended
		May 31, 2024	May 31, 2023
Sales, net (Note 9)	[1]	$ 44,582,807	$ 40,199,354
Structural
Sales, net (Note 9)		14,406,863	20,642,326
Aerospace / Defense
Sales, net (Note 9)		26,675,321	15,568,695
Industrial
Sales, net (Note 9)		$ 3,500,623	$ 3,988,333

[1] Note 9