Note 2 - Discontinued Operations - Components of Discontinued Operations (Details) - USD ($)		1 Months Ended	12 Months Ended
		Oct. 31, 2024	Nov. 30, 2024	Nov. 30, 2023
Current assets of discontinued operations			$ 0	$ 31,958
Other assets of discontinued operations			0	1,023,566
Current liabilities of discontinued operations			0	186,789
Sales			24,499,371	30,280,957
Cost of goods sold			17,189,506	21,697,075
Gross profit (loss)			7,309,865	8,583,882
Engineering			432,587	598,065
Selling			1,635,166	2,132,101
General and administrative			4,781,415	4,322,475
Total expenses			6,849,168	7,052,641
Loss from operations			460,697	1,531,241
Other			3,208	147,512
Total other income (expense)			(596,188)	(442,493)
Income (loss) before income taxes			517,171	(708,313)
Income tax expense (benefit)			115,330	(212,493)
Discontinued Operations [Member]
Inventory				18,013
Other current assets				13,945
Current assets of discontinued operations				31,958
Property, plant, and equipment, net				1,023,566
Other assets				0
Other assets of discontinued operations				1,023,566
Accounts payable				3,539
Current portion of long-term debt				160,599
Other current liabilities				22,651
Current liabilities of discontinued operations				186,789
Sales			0	2,030,714
Cost of goods sold			108,618	2,122,287
Gross profit (loss)			(108,618)	(91,573)
Engineering			0	0
Selling			253	156,682
General and administrative			9,012	413,857
Total expenses			9,265	570,539
Loss from operations			(117,883)	(662,112)
Interest expense			(49,188)	(61,516)
Gain (loss) on disposal of real estate			683,685	0
Other			558	15,315
Total other income (expense)			635,055	(46,201)
Income (loss) before income taxes			517,172	(708,313)
Income tax expense (benefit)			115,330	(212,493)
Net income (loss)			401,842	(495,820)
Discontinued Operations [Member] | Tools [Member]
Gain (loss) on disposal of real estate		$ 683,685
Income (loss) before income taxes			517,000	(708,000)
Revenue from external customers			0	2,031,000
Gross Profit			(109,000)	(92,000)
Income (loss) from operations			(118,000)	(662,000)
Total Assets			0	1,056,000
Capital expenditures	[1]		0	16,000
Depreciation & Amortization			$ 27,000	$ 135,000

[1] FY 2022 capital expenditures include $166,000 of finance leased assets.