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Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balances at May. 31, 2024 $ 1,346,000 $ 53,542,000 $ (102,000) $ (48,195,000) $ 6,591,000
Balance, shares at May. 31, 2024 2,103,154        
Foreign currency translation (6,000) (6,000)
Share-based compensation 77,000 77,000
Net income loss (1,316,000) (1,316,000)
Balances at Aug. 31, 2024 $ 1,346,000 53,619,000 (108,000) (49,511,000) 5,346,000
Balance, shares at Aug. 31, 2024 2,103,154        
Balances at May. 31, 2025 $ 203,000 57,175,000 (105,000) (53,168,000) 4,105,000
Balance, shares at May. 31, 2025 2,546,216        
Foreign currency translation 3,000 3,000
Net income loss 2,000 2,000
Net proceeds from sales of common stock $ 21,000 891,000 912,000
Net proceeds from ATM, shares 258,569        
Share-based compensation $ 1,000 132,000 133,000
Share-based compensation, shares 10,625        
Balances at Aug. 31, 2025 $ 225,000 $ 58,198,000 $ (102,000) $ (53,166,000) $ 5,155,000
Balance, shares at Aug. 31, 2025 2,815,410