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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
Nov. 30, 2024
May 31, 2024
Common stock, par value (in dollars per share) $ 0.001 $ 0.001
Common stock, shares authorized (in shares) 400,000,000 400,000,000
Common stock, shares issued (in shares) 225,846,268 144,083,944
Common stock, shares outstanding (in shares) 216,555,069 139,051,142
Treasury stock (in shares) (9,291,199) (5,032,802)
Series E Preferred Stock    
Temporary equity, par value (in dollars per share) $ 0.001 $ 0.001
Temporary equity, shares authorized (in shares) 2,000,000 2,000,000
Temporary equity, shares issued (in shares) 301,673 0
Temporary equity outstanding (in shares) 301,673 0
Series F Preferred Stock    
Temporary equity, par value (in dollars per share) $ 0.001 $ 0.001
Temporary equity, shares authorized (in shares) 53,191 0
Temporary equity, shares issued (in shares) 53,191 0
Temporary equity outstanding (in shares) 43,000 0
Series E-1 Preferred Stock    
Temporary equity, par value (in dollars per share) $ 0.001 $ 0.001
Temporary equity, shares authorized (in shares) 62,500 0
Temporary equity, shares issued (in shares) 6,359 0
Temporary equity outstanding (in shares) 6,359 0