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Note 3 - Investments (Tables)
12 Months Ended
Sep. 30, 2024
Notes Tables  
Investment Holdings, Schedule of Investments [Table Text Block]
  

Cost

  Gross Unrealized Gains  Gross Unrealized Losses  

Total

 
  

(In thousands)

 

2024

                

Mutual fund investments

 $10  $1  $-  $11 

Total

  10   1   -   11 

2023

                

Mutual fund investments

 $9  $1  $-  $10 

Total

  9   1   -   10