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Restructuring (Tables)
 12 Months Ended
Dec. 31, 2023
Restructuring [Abstract]  
Restructuring Costs
The Company’s restructuring costs, primarily for cash severance and other severance costs, are allocated to the following operating expense categories as follows (in thousands):

   
Research and
Development
    
Selling,
general and
administrative
    
Total
  
Balance as of December 31, 2022
  
$
-
    
$
-
    
$
-
  
Restructuring charges incurred(1)
    
3,083
      
1,421
      
4,504
  
Cash payments and other adjustments(1)
    
(2,570
)
    
(1,415
)
    
(3,985
)
Balance as of December 31, 2023
  
$
513
    
$
6
    
$
519
  
Current liabilities
                  
$
519
  
Long-term liabilities
                    
-
  
Total liabilities as of December 31, 2023
                  
$
519
  

(1)
 		Restructuring charges incurred and Cash payments and other adjustments include non-cash charges related to stock-based compensation expenses.