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Note 7 - Revenue (Details Textual) - USD ($)
9 Months Ended 12 Months Ended
Feb. 28, 2025
Feb. 29, 2024
May 31, 2025
May 31, 2024
Jun. 01, 2023
Contract with Customer, Liability     $ 22,964 $ 840,945 $ 23,007
Contract with Customer, Liability, Revenue Recognized Including Opening Balance     817,981 0  
Accounts Receivable, after Allowance for Credit Loss         $ 4,857,504
Pallets [Member]          
Contract with Customer, Liability, Revenue Recognized     $ 0 $ 818,000  
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Canada and Mexico [Member]          
Concentration Risk, Percentage 1.70% 1.60%