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Consolidated Condensed Balance Sheets (Unaudited) (Parentheticals) - USD ($)
Dec. 31, 2023
Jun. 30, 2023
Accounts Receivable, Allowance for Credit Loss, Current $ 219,163 $ 170,103
Preferred Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, Shares Authorized (in shares) 30,000,000 30,000,000
Preferred Stock, Shares Authorized (in shares) 30,000,000 30,000,000
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) 18,158,730 18,309,051
Common Stock, Shares, Outstanding, Ending Balance (in shares) 18,158,730 18,309,051
Series B Preferred Stock [Member]    
Preferred Stock, Shares Authorized (in shares) 700,000 700,000
Preferred Stock, Shares Authorized (in shares) 700,000 700,000
Preferred Stock, Shares Outstanding (in shares) 625,375 625,375
Preferred Stock, Shares Issued (in shares) 625,375 625,375
Series B-1 Preferred Stock [Member]    
Preferred Stock, Shares Authorized (in shares) 550,000 550,000
Preferred Stock, Shares Authorized (in shares) 550,000 550,000
Preferred Stock, Shares Outstanding (in shares) 142,309 212,402
Preferred Stock, Shares Issued (in shares) 142,309 212,402