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Note 4 - Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($) | Oct. 31, 2025 | Oct. 31, 2024
--- | --- | ---
Property and equipment, gross | $ 38,627,946 | $ 38,550,925
Less accumulated amortization and depreciation | (32,038,429) | (31,669,568)
Property and equipment, net | 6,589,517 | 6,881,357
Land and Land Improvements [Member] |  |
Property and equipment, gross | 3,148,834 | 3,148,834
Building and Building Improvements [Member] |  |
Property and equipment, gross | 8,351,812 | 8,305,039
Machinery and Equipment [Member] |  |
Property and equipment, gross | 25,989,432 | 26,032,752
Furniture and Fixtures [Member] |  |
Property and equipment, gross | 876,648 | 902,012
Construction in Progress [Member] |  |
Property and equipment, gross | $ 261,220 | $ 162,288

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