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Consolidated Balance Sheets (Parentheticals) - $ / shares
Apr. 30, 2024
Apr. 30, 2023
Preferred Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, Shares Authorized (in shares) 1,000,000 1,000,000
Preferred Stock, Shares Outstanding (in shares) 0 0
Preferred Stock, Shares Issued (in shares) 0 0
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Common Stock, Shares Authorized (in shares) 50,000,000 50,000,000
Common Stock, Shares, Issued (in shares) 13,727,013 13,701,468
Common Stock, Shares, Outstanding (in shares) 6,394,675 6,373,404
Treasury Stock, Common, Shares (in shares) 7,332,338 7,328,064