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Fair Value of Financial Instruments (Tables)
 3 Months Ended
Dec. 31, 2025
Fair Value of Financial Instruments [Abstract]  
Schedule of Assets and Liabilities that were Measured at Fair Value on a Recurring Basis Our assets and liabilities that were measured at fair value on a recurring basis were as follows:
   December 31, 2025   September 30, 2025 
   Fair Value   Level I   Level II   Level III   Fair Value   Level I   Level II   Level III 
U.S. government securities  $17,000   $
-
   $17,000   $
   -
   $17,000   $
-
   $17,000   $
    -
 
Certificates of deposit   39,683    
-
    39,683    
-
    41,308    
-
    41,308    
-
 
Money market funds   5,572    5,572    
-
    
-
    5,518    5,518    
-
    
-
 
Total  $62,255   $5,572   $56,683   $
-
   $63,826   $5,518   $58,308   $
-
 
Schedule of Cash, Cash Equivalents and Investments Classified by Security Type

Our cash, cash equivalents and investments classified by security type as of December 31, 2025 and September 30, 2025 consisted of the following:

 

   December 31, 2025 
   Adjusted
Cost		   Gross
Unrealized
Gains		   Gross
Unrealized
Losses		   Fair Value   Cash and
Cash
Equivalents		   Short-Term
Investments		 
Cash  $266,239   $
-
   $
          -
   $266,239   $266,239   $
          -
 
U.S. government securities   16,644    356    
-
    17,000    
-
    17,000 
Certificates of deposit and time deposits   39,683    
-
    
-
    39,683    
-
    39,683 
Money market funds   5,572    
-
    
-
    5,572    5,572    
-
 
Total cash, cash equivalents and short-term investments  $328,138   $356   $
-
   $328,494   $271,811   $56,683 
   September 30, 2025 
   Adjusted
Cost		   Gross
Unrealized
Gains		   Gross
Unrealized
Losses		   Fair Value   Cash and
Cash
Equivalents		   Short-Term
Investments		 
Cash  $188,111   $
-
   $
          -
   $188,111   $188,111   $
          -
 
U.S. government securities   16,607    393    
-
    17,000    
-
    17,000 
Certificates of deposit and time deposits   41,308    
-
    
-
    41,308    
-
    41,308 
Money market funds   5,518    
-
    
-
    5,518    5,518    
-
 
Total cash, cash equivalents and short-term investments  $251,544   $393   $
-
   $251,937   $193,629   $58,308