Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Feb. 29, 2024	Feb. 28, 2023
Sales	$ 5,723,394	$ 7,086,864
Cost of goods sold	4,249,870	4,899,990
Gross profit	1,473,524	2,186,874
Expenses
Engineering	160,353	128,295
Selling	462,759	531,461
General and administrative	1,230,494	983,672
Total expenses	1,853,606	1,643,428
Income from operations	(380,082)	543,446
Other income (expense):
Interest expense	(165,639)	(111,813)
Other	8,685	11,993
Total other expense	(156,954)	(99,820)
Income (loss) from continuing operations before income taxes	(537,036)	443,626
Income tax expense (benefit)	(112,777)	93,331
Income (loss) from continuing operations	(424,259)	350,295
Discontinued Operations (Note 3)
Loss from discontinued operations before income taxes	(49,902)	(10,234)
Income tax benefit	(9,121)	(2,149)
Loss on discontinued operations	(40,781)	(8,085)
Net income (loss)	$ (465,040)	$ 342,210