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Note 3 - Receivables (Tables)
12 Months Ended
Jun. 30, 2025
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
  

2025

  

2024

 

Accounts receivable

 $4,375,463  $3,906,200 

Allowance for doubtful accounts

  (242,437)  (227,573)
  $4,133,026  $3,678,627