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Fair Value of Financial Instruments (Tables)
 12 Months Ended
Dec. 31, 2023
Fair Value of Financial Instruments [Abstract]  
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis as of December 31, 2023 and 2022 and the basis for that measurement (in thousands):
   December 31, 2023 
   Fair Value   Level 1   Level 2   Level 3 
Assets:                
Money market funds (1)  $1   $
—
   $
—
   $
—
 
                     
Liabilities:                    
Warrant liability  $1,748   $
—
   $
—
   $1,748 
   December 31, 2022 
   Fair Value   Level 1   Level 2   Level 3 
Assets:                
Money market funds (1)  $73   $
—
   $
—
   $
—
 
Corporate notes and commercial paper  $1,078   $
—
   $1,078   $
—
 
                     
Liabilities:                    
Warrant liability  $2,079   $
—
   $
—
   $2,079 
(1)Included in cash and cash equivalents
Schedule of Determination of Fair Value for its Financial Assets The following table represents the Company’s determination of fair value for its financial assets (cash equivalents and investments) (in thousands):
   December 31, 2023 
       Unrealized   Unrealized   Fair 
   Cost   Gains   Losses   Value 
Cash and cash equivalents  $1,583   $
—
   $
—
   $1,583 
   December 31, 2022 
       Unrealized   Unrealized   Fair 
   Cost   Gains   Losses   Value 
Cash and cash equivalents  $1,828   $
    —
   $
—
   $1,828 
Short-term investments   1,103    
—
    (25)   1,078 
   $2,931   $
—
   $(25)  $2,906