v3.26.1
Note 9 - Related Party Transactions (Details Textual) - USD ($)
12 Months Ended
Aug. 01, 2022
Jan. 01, 2017
May 31, 2026
May 31, 2025
Apr. 23, 2026
Jun. 01, 2024
Accounts Receivable, after Allowance for Credit Loss           $ 4,423,951
Operating Lease, Payments     $ 609,000 $ 610,291    
Lease Agreement With Robert Rosene [Member]            
Operating Lease, Payments     $ 33,500      
Sale Leaseback Transaction, Net Book Value         $ 1,675,000  
Two Buildings [Member]            
Lessee, Operating Lease, Term of Contract (Month)     10 years      
Lessee, Operating Lease, Renewal Term     5 months      
Monthly Rent Expense, Monthly Increase Every Fifth Year, Percent     5.00%      
TriEnda Holdings LLC [Member]            
Related Party Transaction, Purchases from Related Party     $ 43,135 81,970    
Related Party Transaction, Purchases from Related Party     1,374,096 517,194    
Yorktown [Member] | Grinding and Pelletizing Equipment [Member]            
Weekly Rental Expenses     27,500      
Operating Lease, Expense     1,430,000 1,457,200    
Yorktown [Member] | Office Space Lease [Member]            
Operating Lease, Expense     75,000 75,000    
Lessee, Operating Lease, Term of Contract (Month)   6 years        
Monthly Rental Expense, Renewal   $ 6,250        
TriEnda Holdings LLC [Member]            
Accounts Receivable, after Allowance for Credit Loss     928,482 617,538    
Durakon Industries, Inc. [Member]            
Related Party Transaction, Purchases from Related Party     62,640 37,320    
Accounts Receivable, after Allowance for Credit Loss     0 37,320    
Green Plastic Pallets [Member]            
Related Party Transaction, Purchases from Related Party     319,005 367,965    
Accounts Receivable, after Allowance for Credit Loss     100,980 273,345    
GRE [ Member] | Two Buildings [Member]            
Lessee, Operating Lease, Term of Contract (Month) 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%          
Operating Lease, Payments     $ 534,000 $ 534,000