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Note 16 - Segment Information - Segment Reporting Information (Details) - USD ($) | 12 Months Ended
--- | ---
Nov. 30, 2020 | Nov. 30, 2019
Revenues, Total | $ 22,409,123 | $ 22,889,173
Income (loss) from operations | (3,909,634) | (1,496,881)
Total Assets | 18,803,013 | 19,346,938
Capital expenditures | 693,414 | 447,025
Depreciation, Depletion and Amortization, Total | 818,234 | 1,003,541
Operating Segments [Member] |  |
Revenues, Total | 22,409,000 | 22,889,000
Income (loss) from operations | (3,910,000) | (1,497,000)
Income (loss) before tax | (2,960,000) | (1,769,000)
Total Assets | 18,803,000 | 19,347,000
Capital expenditures | 693,000 | 447,000
Depreciation, Depletion and Amortization, Total | 818,000 | 1,004,000
Operating Segments [Member] | Agricultural Products [Member] |  |
Revenues, Total | 13,085,000 | 13,508,000
Income (loss) from operations | (2,318,000) | (1,599,000)
Income (loss) before tax | (1,723,000) | (1,843,000)
Total Assets | 12,785,000 | 13,169,000
Capital expenditures | 499,000 | 257,000
Depreciation, Depletion and Amortization, Total | 481,000 | 503,000
Operating Segments [Member] | Modular Buildings [Member] |  |
Revenues, Total | 6,993,000 | 7,260,000
Income (loss) from operations | (1,295,000) | 208,000
Income (loss) before tax | (1,058,000) | 220,000
Total Assets | 3,310,000 | 3,584,000
Capital expenditures | 146,000 | 147,000
Depreciation, Depletion and Amortization, Total | 205,000 | 372,000
Operating Segments [Member] | Tools [Member] |  |
Revenues, Total | 2,331,000 | 2,121,000
Income (loss) from operations | (297,000) | (106,000)
Income (loss) before tax | (179,000) | (146,000)
Total Assets | 2,708,000 | 2,594,000
Capital expenditures | 48,000 | 43,000
Depreciation, Depletion and Amortization, Total | $ 132,000 | $ 129,000

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