Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Revenues	$ 5,140,955	$ 5,723,394
Cost of goods sold	3,644,446	4,249,870
Gross profit	1,496,509	1,473,524
Expenses
Engineering	85,230	160,353
Selling	349,977	462,759
General and administrative	1,058,817	1,230,494
Total expenses	1,494,024	1,853,606
Income (loss) from operations	2,485	(380,082)
Other income (expense):
Interest expense	(75,688)	(165,639)
Other	2,794	8,685
Total other expense	(72,894)	(156,954)
Loss from continuing operations before income taxes	(70,409)	(537,036)
Income tax benefit	(14,652)	(112,777)
Loss from continuing operations	(55,757)	(424,259)
Discontinued Operations (Note 3)
Loss from discontinued operations before income taxes	0	(49,902)
Income tax benefit	0	(9,121)
Net income (loss) on discontinued operations	0	(40,781)
Net loss	$ (55,757)	$ (465,040)