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Accrued Expenses
3 Months Ended
Mar. 31, 2025
Payables and Accruals [Abstract]  
Accrued Expenses
7. Accrued Expenses
Accrued expenses as of March 31, 2025 and December 31, 2024 are comprised of the following (in thousands):
 
    
March 31,

2025
    
December 31,

2024
 
Payroll, benefits and related taxes, excluding severance benefits
   $ 5,413      $ 5,518  
Withholding tax attributable to intercompany interest income
     1,759        1,419  
Outside service fees
     1,115        1,221  
Others
     509        490  
  
 
 
    
 
 
 
Accrued expenses
   $ 8,796      $ 8,648