Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)	Feb. 28, 2025	May 31, 2024
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized (in shares)	20,750,000	20,750,000
Preferred Stock, Shares Issued (in shares)	29,000	50,000
Preferred Stock, Shares Outstanding (in shares)	29,000	50,000
Preferred Stock, Liquidation Preference, Value	$ 2,900,000	$ 5,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001	$ 0.0001
Common Stock, Shares Authorized (in shares)	5,000,000,000	5,000,000,000
Common Stock, Shares, Issued (in shares)	28,279,701	28,279,701
Common Stock, Shares, Outstanding (in shares)	27,759,709	28,279,701
Treasury Stock, Common, Shares (in shares)	519,992