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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (DEFICIENCY) - USD ($)
$ in Thousands
Total
Common Stock
Treasury Stock
Additional Paid-in Capital
Non-Controlling Interest
Accumulated Deficit
Beginning balance (in shares) at Apr. 30, 2024   13,714,099        
Beginning balance at Apr. 30, 2024 $ (1,903) $ 14 $ (708) $ 83,384   $ (84,593)
Beginning balance (in shares) at Apr. 30, 2024     120,333      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation 258     258 $ 30  
Net income (loss) 1,313         1,313
Ending balance (in shares) at Jul. 31, 2024   13,714,099        
Ending balance at Jul. 31, 2024 $ (332) $ 14 $ (708) 83,642   (83,280)
Ending balance (in shares) at Jul. 31, 2024     120,333      
Beginning balance (in shares) at Apr. 30, 2025 13,777,170 13,897,503        
Beginning balance at Apr. 30, 2025 $ 3,772 $ 14 $ (708) 84,358 0 (79,892)
Beginning balance (in shares) at Apr. 30, 2025     120,333      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Stock-based compensation 208     178    
Issuance of common stock on exercise of stock options (in shares)   11,251        
Issuance of common stock on exercise of stock options 24     24    
Net income (loss) (466)         (466)
Net income (loss) $ (466)          
Ending balance (in shares) at Jul. 31, 2025 13,788,421 13,908,754        
Ending balance at Jul. 31, 2025 $ 3,538 $ 14 $ (708) $ 84,560 $ 30 $ (80,358)
Ending balance (in shares) at Jul. 31, 2025     120,333