General form for registration of securities under the Securities Act of 1933

Consolidated Balance Sheets (Parenthetical)

v3.26.1
Consolidated Balance Sheets (Parenthetical) - $ / shares
shares in Thousands
Feb. 28, 2026
May 31, 2025
May 31, 2024
Preferred stock, par value $ 0.001 $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000 5,000 5,000
Common stock, par value $ 0.001 $ 0.001 $ 0.001
Common stock, shares authorized 2,250,000 2,250,000 1,750,000
Common stock, shares issued 1,358,242 1,249,460 1,059,002
Common stock, shares outstanding 1,357,956 1,249,174 1,058,559
Treasury stock, shares 286 286 443
Series B Convertible Preferred Stock      
Preferred stock, par value $ 0.001 $ 0.001 $ 0.001
Preferred stock, shares authorized 400 400 400
Preferred stock, shares issued 19 19 19
Preferred stock, shares outstanding 19 19 19
Series C Convertible Preferred Stock      
Preferred stock, par value $ 0.001 $ 0.001 $ 0.001
Preferred stock, shares authorized 8 8 8
Preferred stock, shares issued 6 6 6
Preferred stock, shares outstanding 6 6 6
Series D Convertible Preferred Stock      
Preferred stock, par value $ 0.001 $ 0.001 $ 0.001
Preferred stock, shares authorized 12 12 12
Preferred stock, shares issued 9 9 9
Preferred stock, shares outstanding 9 9 9