Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Sales	$ 5,613,066	$ 5,400,572
Cost of goods sold	4,420,922	4,357,894
Gross profit	1,192,144	1,042,678
Expenses:
Engineering	134,071	121,391
Selling	487,156	472,974
General and administrative	1,007,793	816,836
Total expenses	1,629,020	1,411,201
Income (Loss) from operations	(436,876)	(368,523)
Other income (expense):
Interest expense	(76,704)	(58,684)
Other	(1,552)	27,657
Total other income (expense)	(78,256)	(31,027)
Income (Loss) before income taxes	(515,132)	(399,550)
Income tax expense (benefit)	(108,643)	(84,312)
Net Income (Loss)	$ (406,489)	$ (315,238)