Share-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Summary of Stock Option Activity Stock option activity under the Plans for the periods presented is as follows:
 
    
Options Outstanding
  
    
Shares
Subject to
Options
Outstanding
     
Weighted-
Average
Exercise
Price
     
Weighted
Average
Remaining
Contractual
Life (Years)
     
Aggregate
Intrinsic
Value
  
Balance as of December 31, 2020
      215,625      $ 0.47        9.6        —    
Conversion of options due to business combination
      (11,322 )          
  
 
 
           
Balance as of January 1, 2021, as converted
      204,303      $ 0.50        
Granted
      1,277,540        10.75        
Exercised
      (3,000 )       0.50        
Forfeited
      (2,368 )       0.50                                          
  
 
 
     
 
 
     
 
 
     
 
 
  
Balance as of December 31, 2021
      1,476,475      $ 9.35        9.4      $ 884  
  
 
 
     
 
 
     
 
 
     
 
 
  
Schedule of Stock Options Awards Valuation Assumptions
The Black-Scholes option pricing model assumptions used in evaluating our awards to employees are as follows:
 
    
Year Ended
December 31,
2021
  
Expected Term (Years)
      6.02  
Expected Volatility
      42 % 
Risk-free interest rate
      1.22 % 
Dividend Yield
      —    
Summary of Equity-based Compensation Expense
Equity-based compensation expense in the statement of operations is summarized as follows:
 
    
Year Ended
December 31,
  
    
2021
     
2020
  
Research and development
    $ 250      $ 105  
Sales and marketing
      6        —    
General and administrative
      390        128  
  
 
 
     
 
 
  
Total equity-based compensation expense
    $ 646      $ 233