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Note 6 - Fair Value Measurements (Tables)
12 Months Ended
Sep. 30, 2023
Notes Tables  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]

(In thousands)

 

Total

   

Quoted Prices

in Active

Markets

(Level 1)

   

Observable

Inputs

(Level 2)

 

As of September 30, 2023:

                       

Current assets:

                       

Cash equivalents

  $ 125,805     $ 125,805     $ -  

Other assets:

                       

Cash surrender value of life insurance policies

    10,586       -       10,586  

Total

  $ 136,391     $ 125,805     $ 10,586  
                         

As of October 1, 2022:

                       

Current assets:

                       

Cash equivalents

  $ 48,045     $ 48,045     $ -  

Other assets:

                       

Cash surrender value of life insurance policies

    9,938       -       9,938  

Total

  $ 57,983     $ 48,045     $ 9,938