Consolidated Condensed Balance Sheets (Unaudited) (Parentheticals) - USD ($)	Sep. 30, 2023	Jun. 30, 2023
Accounts Receivable, Allowance for Credit Loss, Current	$ 194,656	$ 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
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)	18,171,068	18,309,051
Common Stock, Shares, Outstanding, Ending Balance (in shares)	18,171,068	18,309,051
Series B Preferred Stock [Member]
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 Outstanding (in shares)	212,402	212,402
Preferred Stock, Shares Issued (in shares)	212,402	212,402