Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Investments (Tables)

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Note 4 - Investments (Tables)
6 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
   

March 31, 2024

 

(In thousands)

 

Cost

   

Unrealized Gains

   

Unrealized Losses

   

Fair Value

 

Short-Term

                               

U.S. Treasury securities

  $ 124,960     $ 1     $ (81 )   $ 124,880  

Certificates of deposit

    2,221       -       (12 )     2,209  

Investment securities – short-term

  $ 127,181     $ 1     $ (93 )   $ 127,089  

Long-Term

                               

U.S Treasury securities

  $ 6,737     $ -     $ (442 )   $ 6,295  

Certificates of deposit

    248       -       (20 )     228  

Investment securities – long-term

  $ 6,985     $ -     $ (462 )   $ 6,523  
   

September 30, 2023

 

(In thousands)

 

Cost

   

Unrealized Gains

   

Unrealized Losses

   

Fair Value

 

Short-Term

                               

U.S treasury securities

  $ 122,534     $ -     $ (143 )   $ 122,391  

Certificates of deposit

    8,014       -       (119 )     7,895  

Investment securities – short-term

  $ 130,548     $ -     $ (262 )   $ 130,286  

Long-Term

                               

U.S treasury securities

  $ 6,719     $ -     $ (596 )   $ 6,123  

Certificates of deposit

    248       -       (28 )     220  

Investment securities – long-term

  $ 6,967     $ -     $ (624 )   $ 6,343  
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

  $ 124,880     $ (84 )   $ 6,295     $ (438 )

Certificates of deposit

    245       -       2,192       (32 )

Investment securities

  $ 125,125     $ (84 )   $ 8,487     $ (470 )
   

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

  $ 112,908     $ (131 )   $ 15,606     $ (608 )

Certificates of deposit

    245       -       7,870       (147 )

Investment securities

  $ 113,153     $ (131 )   $ 23,476     $ (755 )