Quarterly report [Sections 13 or 15(d)]

Note 4 - Investments (Tables)

v3.25.1
Note 4 - Investments (Tables)
 6 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
   

March 31, 2025

  

(In thousands)

  

Amortized Cost

    

Unrealized Gains

    

Unrealized Losses

    

Fair Value

  

Short-Term

                                

U.S. Treasury securities

  

$

 83,110    

$

 133    

$

 (101

)

  

$

 83,142  

Investment securities – short-term

  

$

 83,110    

$

 133    

$

 (101

)

  

$

 83,142  

Long-Term

                                

U.S. Treasury securities

  

$

 41,151    

$

 64    

$

 (98

)

  

$

 41,117  

Certificates of deposit

     248       -       (9

)

     239  

Investment securities – long-term

  

$

 41,399    

$

 64    

$

 (107

)

  

$

 41,356  
   

September 30, 2024

  

(In thousands)

  

Amortized 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

  

$

 19,669    

$

 (43

)

  

$

 6,613    

$

 (156

)

Certificates of deposit

     -       -       239       (9

)

Investment securities

  

$

 19,669    

$

 (43

)

  

$

 6,852    

$

 (165

)
   

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 )