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Cash and Cash Equivalents (Tables)
 12 Months Ended
Sep. 30, 2022
Cash and Cash Equivalents [Abstract]  
Components of Cash and Cash Equivalents
Cash and cash equivalents are comprised of the following:
 
As of September 30,
   
2022
      2021  
Institutional money market funds
   
$
1,027
      $ 1,020  
Cash on hand, unrestricted
   
 
80,426
        48,751  
    
 
 
     
 
 
  
Total
   
$
81,453
      $ 49,771