v3.26.3
Consolidated Statement of Changes in Stockholders' Deficit Unaudited - USD ($)
$ in Thousands
Total
Preferred stock
Common stock
Treasury stock
Additional paid-in capital
Accumulated deficit
Beginning balance at May. 31, 2025 $ (96,042)   $ 1,249   $ 790,495 $ (887,786)
Beginning balance (shares) at May. 31, 2025   34,000 1,249,460,000      
Beginning balance treasury stock (shares) at May. 31, 2025       286,000    
Issuance of stock for convertible note repayment 2,250   $ 8   2,242  
Issuance of stock for convertible note repayment (in shares)     7,462,000      
Stock option exercises 21       21  
Stock option exercises (in shares)     100,000      
Warrant exercises (in shares)     23,000      
Dividends accrued on Series C and D convertible preferred stock (373)       (373)  
Stock-based compensation 179       179  
Net loss (5,540)         (5,540)
Ending balance at Aug. 31, 2025 (99,505)   $ 1,257   792,564 (893,326)
Ending balance (shares) at Aug. 31, 2025   34,000 1,257,045,000      
Ending balance treasury stock (shares) at Aug. 31, 2025       286,000    
Beginning balance at May. 31, 2026 $ (109,718)   $ 1,374   819,393 (930,485)
Beginning balance (shares) at May. 31, 2026   34,000 1,373,803,000      
Beginning balance treasury stock (shares) at May. 31, 2026 286,000     286,000    
Issuance of stock for convertible note repayment $ 3,000   $ 14   2,986  
Issuance of stock for convertible note repayment (in shares)     13,524,000      
Stock issued for private offerings 28,426   $ 67   28,359  
Stock issued for private offerings (in shares)     67,313,000      
Dividends accrued on Series C and D convertible preferred stock (369)       (369)  
Stock-based compensation 524       524  
Net loss (19,936)         (19,936)
Ending balance at Aug. 31, 2026 $ (98,073)   $ 1,455   $ 850,893 $ (950,421)
Ending balance (shares) at Aug. 31, 2026   34,000 1,454,640,000      
Ending balance treasury stock (shares) at Aug. 31, 2026 286,000     286,000