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Note 2 - Fair Value Measurements (Tables)
12 Months Ended
Sep. 30, 2023
Notes Tables  
Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]
  

September 30, 2023

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 
  

(In thousands)

 

Money market fund deposits

 $59,382  $-  $-  $59,382 

Mutual fund investments

  10   -   -   10 

Total

 $59,392  $-  $-  $59,392 

Amounts included in

                

Cash and cash equivalents

 $59,382  $-  $-  $59,382 

Investments in marketable securities

  10   -   -   10 

Total

 $59,392  $-  $-  $59,392 
  

September 30, 2022

 
  

Level 1

  

Level 2

  

Level 3

  

Total

 
  

(In thousands)

 

Money market fund deposits

 $54,225  $-  $-  $54,225 

Mutual fund investments

  9   -   -   9 

Total

 $54,234  $-  $-  $54,234 

Amounts included in

                

Cash and cash equivalents

 $54,225  $-  $-  $54,225 

Investments in marketable securities

  9   -   -   9 

Total

 $54,234  $-  $-  $54,234