Annual report [Section 13 and 15(d), not S-K Item 405]

Note 3 - Investments (Tables)

v3.25.3
Note 3 - Investments (Tables)
 12 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
   

September 30, 2025

  

(In thousands)

  

Cost

    

Unrealized Gains

    

Unrealized Losses

    

Fair Value

  

Short-Term

                                

U.S treasury securities

  

$

 84,192    

$

 119    

$

 (70

)

  

$

 84,241  

Certificates of deposit

     248       -       (5 )     243  

Investment securities – short-term

  

$

 84,440    

$

 119    

$

 (75

)

  

$

 84,484  

Long-Term

                                

U.S treasury securities

  

$

 59,794    

$

 62    

$

 (34

)

   $ 59,822  

Investment securities – long-term

  

$

 59,794    

$

 62    

$

 (34

)

  

$

 59,822  
   

September 30, 2024

  

(In thousands)

  

Cost

    

Unrealized Gains

    

Unrealized Losses

    

Fair Value

  

Short-Term

                                

U.S treasury securities

  

$

 113,987    

$

 382    

$

 (45

)

  

$

 114,324  

Certificates of deposit

     500       1       -       501  

Investment securities – short-term

  

$

 114,487    

$

 383    

$

 (45

)

  

$

 114,825  

Long-Term

                                

U.S treasury securities

  

$

 24,514    

$

 -    

$

 (245

)

  

$

 24,269  

Certificates of deposit

     248       -       (12

)

     236  

Investment securities – long-term

  

$

 24,762    

$

 -    

$

 (257

)

  

$

 24,505  
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]
   

In Unrealized Loss Position For Less Than 12 Months

    

In Unrealized Loss Position For Greater Than 12 Months

  

(In thousands)

  

Fair Value

    

Gross Unrealized Losses

    

Fair Value

    

Gross Unrealized Losses

  

U.S treasury securities

  

$

 40,330    

$

 (36

)

  

$

 24,380    

$

 (68

)

Certificates of deposit

     -       -       243       (5

)

Investment securities

  

$

 40,330    

$

 (36

)

  

$

 24,623    

$

 (73

)
   

In Unrealized Loss Position For Less Than 12 Months

    

In Unrealized Loss Position For Greater Than 12 Months

  

(In thousands)

  

Fair Value

    

Gross Unrealized Losses

    

Fair Value

    

Gross Unrealized Losses

  

U.S treasury securities

   $ 19,719     $ (39 )   $ 6,500     $ (250 )

Certificates of deposit

     -       -       236       (12 )

Investment securities

   $ 19,719     $ (39 )   $ 6,736     $ (262 )