Consolidated Statements of Operations - USD ($)	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018
Sales	$ 22,889,173	$ 19,726,793
Cost of goods sold	18,961,260	16,215,237
Gross profit	3,927,913	3,511,556
Expenses:
Engineering	479,345	640,430
Selling	1,602,006	1,936,147
General and administrative	3,343,443	3,438,981
Impairment of Assets		591,268
Total expenses	5,424,794	6,606,826
(Loss) from operations	(1,496,881)	(3,095,270)
Other income (expense):
Interest expense	(358,174)	(304,566)
Other	86,235	(446,629)
Total other income (expense)	(271,939)	(751,195)
Income (Loss)	(1,768,820)	(3,846,465)
Income tax (benefit)	(349,234)	(510,416)
(Loss) from continuing operations	(1,419,586)	(3,336,049)
Discontinued Operations
Loss from operations of discontinued segment		(67,177)
Income tax benefit		(16,324)
Loss on discontinued operations		(50,853)
Net (Loss)	$ (1,419,586)	$ (3,386,902)
Net Income (Loss) per share - Basic:
Continuing Operations (in dollars per share)	$ (0.33)	$ (0.80)
Discontinued Operations (in dollars per share)		(0.01)
Net Income (Loss) per share (in dollars per share)	(0.33)	(0.81)
Net Income (Loss) per share - Diluted:
Continuing Operations (in dollars per share)	(0.33)	(0.80)
Discontinued Operations (in dollars per share)		(0.01)
Net Income (Loss) per share (in dollars per share)	$ (0.33)	$ (0.81)
Weighted average outstanding shares used to compute basic net loss per share (in shares)	4,277,375	4,202,836
Weighted average outstanding shares used to compute diluted net loss per share (in shares)	4,277,375	4,202,836