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Note 6 - Related Party Transactions (Details Textual) - USD ($)
6 Months Ended
Aug. 01, 2022
Jan. 01, 2017
Nov. 30, 2025
Nov. 30, 2024
May 31, 2025
TriEnda Holdings LLC [Member]          
Related Party Transaction, Purchases from Related Party     $ 500 $ 45,526  
Related Party Transaction, Purchases from Related Party     48,769 348,884  
Yorktown [Member] | Grinding and Pelletizing Equipment [Member]          
Weekly Rental Expenses     27,500    
Operating Lease, Expense     715,000 715,000  
Yorktown [Member] | Office Space Lease [Member]          
Operating Lease, Expense     37,500 37,500  
Lessee, Operating Lease, Term of Contract   6 years      
Monthly Rental Expense, Renewal   $ 6,250      
Greystone Real Estate L L C [Member] | Manufacturing Facilities Lease [Member]          
Operating Lease, Expense     267,000 267,000  
Lessee, Operating Lease, Term of Contract 10 years        
Lessee, Operating Lease, Renewal Term 5 years        
Monthly Rent Expense $ 44,500        
Monthly Rent Expense, Monthly Increase Every Fifth Year, Percent 5.00%        
TriEnda Holdings LLC [Member]          
Accounts Receivable, after Allowance for Credit Loss     468,559   $ 617,538
Green Plastic Pallets [Member]          
Related Party Transaction, Purchases from Related Party     160,650 $ 139,230  
Accounts Receivable, after Allowance for Credit Loss     $ 93,995   $ 273,345