Note 18 - Segment Information - Segment Reporting Information (Details) - USD ($)	12 Months Ended
	Nov. 30, 2024		Nov. 30, 2023
Revenue from external customers	$ 24,499,371		$ 30,280,957
Gross profit	7,309,865		8,583,882
Income (loss) from operations	460,697		1,531,241
Total Assets	21,240,684		24,402,114
Capital expenditures (1)	724,679		841,784
Depreciation, Depletion and Amortization	868,004		774,365
Operating Segments [Member]
Revenue from external customers	24,499,000		30,281,000
Gross profit	7,310,000		8,584,000
Income (loss) from operations	461,000		1,531,000
Income (loss) before tax	(135,000)		1,089,000
Total Assets	21,241,000		23,347,000
Capital expenditures (1)	763,000	[1]	976,000	[2]
Depreciation, Depletion and Amortization	868,000		805,000
Operating Segments [Member] | Agricultural Products [Member]
Revenue from external customers	14,663,000		22,467,000
Gross profit	4,155,000		6,584,000
Income (loss) from operations	(1,510,000)		664,000
Income (loss) before tax	(2,065,000)		140,000
Total Assets	18,372,000		20,754,000
Capital expenditures (1)	587,000	[1]	781,000	[2]
Depreciation, Depletion and Amortization	617,000		521,000
Operating Segments [Member] | Modular Buildings [Member]
Revenue from external customers	9,836,000		7,814,000
Gross profit	3,155,000		2,000,000
Income (loss) from operations	1,971,000		867,000
Income (loss) before tax	1,930,000		949,000
Total Assets	2,869,000		2,593,000
Capital expenditures (1)	176,000	[1]	195,000	[2]
Depreciation, Depletion and Amortization	$ 251,000		$ 284,000

[1] FY 2024 capital expenditures include finance leased assets of $39,000 in the Agricultural Products segment.

[2] FY 2023 capital expenditures include finance leased assets of $118,000 in the Agricultural Products segment and $17,000 in the Modular Buildings segment.