Condensed Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022
Sales	$ 9,007,874	$ 7,275,353	$ 16,902,659	$ 12,888,420
Cost of goods sold	6,662,313	5,082,195	12,222,882	9,503,119
Gross profit	2,330,654	2,193,158	4,679,777	3,385,301
Expenses
Engineering	140,497	143,943	268,793	278,014
Selling	576,836	630,772	1,171,101	1,117,928
General and administrative	1,194,711	1,097,350	2,272,686	2,105,143
Total expenses	1,912,044	1,872,065	3,712,580	3,501,085
Income (loss) from operations	418,610	321,093	967,196	(115,784)
Other income (expense):
Interest expense	(163,021)	(97,392)	(290,527)	(174,096)
Other	132,513	(1,454)	144,905	(3,005)
Total other income (expense)	(30,428)	(98,846)	(145,622)	(177,101)
Income (loss) before income taxes	388,183	222,247	821,574	(292,885)
Income tax expense	81,518	46,894	172,700	(61,749)
Net Income (loss)	$ 306,664	$ 175,353	$ 648,874	$ (231,136)