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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2022
Fair Value of Financial Instruments [Abstract]  
Schedule of financial assets and liabilities that are measured and carried at fair value
   December 31, 2022 
   Level 1   Level 2   Level 3   Total 
Cash Equivalents                    
Money market funds(a)  $13,284   $
-
   $
-
   $13,284 
Corporate bonds(a)   
-
    2,523    
-
    2,523 
Restricted cash, non-current                    
Money market funds(b)   745    
-
    
-
    745 
Marketable debt securities                    
Corporate bonds(c)   
-
    78,129    
-
    78,129 
Total  $14,029   $80,652   $
-
   $94,681 

 

   December 31, 2021 
   Level 1   Level 2   Level 3   Total 
Cash Equivalents                    
Money market funds(a)  $26,323   $
-
   $
-
   $26,323 
Restricted cash, non-current                    
Money market funds(b)   745    
-
    
-
    745 
Marketable debt securities                    
Corporate bonds(c)   
-
    94,972    
-
    94,972 
Total  $27,068   $94,972   $
-
   $122,040 

 

  (a) Money market funds and corporate debt securities with original maturities of 90 days or less are included within Cash and cash equivalents in the Consolidated Balance Sheets.
     
  (b) Restricted Money market funds are included within Restricted Cash, non-current in the Consolidated Balance Sheets.
     
  (c) Corporate debt securities with original maturities greater than 90 days are included within Marketable securities in the Consolidated Balance Sheets and classified as current or noncurrent based upon whether the maturity of the financial asset is less than or greater than 12 months.