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Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Based Compensation Expense

The stock-based compensation expense is as follows:

 

   2022   2021 
   For the Year Ended 
   December 31 
   2022   2021 
Research and development  $18   $159 
Sales and marketing   68    188 
General and administrative   1,426    673 
Cost of revenues   39    65 
Total  $1,551   $1,085 
Schedule of Stock Option Activity

Stock option activity for the years ended December 31, 2022 and 2021 is as follows and reflects the 1-for-10 Reverse Stock Split that became effective on September 15, 2021:

 

       Weighted average exercise price   Weighted average remaining contractual life   Aggregate Intrinsic 
   Options   per share   (in years)   Value* 
Outstanding at January 1, 2021   144,303   $36.37    7.82   $24 
Options granted   0   $            
Options exercised   (707)  $7.50           
Options forfeited   (23,171)  $27.55           
Options cancelled   (25,012)  $29.60           
Outstanding at December 31, 2021   95,413   $40.00    6.73   $0 
                     
Options granted   4,414,419   $0.44           
Options exercised   0   $            
Options forfeited   (15,303)  $33.65           
Options cancelled   (18,314)  $49.67           
Outstanding at December 31, 2022   4,476,215   $0.95    9.76   $         358 
                     
Vested and expected to vest at December 31, 2022   4,476,215   $0.95    9.76   $358 
Exercisable at December 31, 2022   54,839   $39.45    5.27   $0 

 

*The intrinsic value is calculated as the difference between the exercise price and the fair value of the common stock on the balance sheet date.
Schedule of Fair Value Option grants

The fair value of option grants made during the years ended December 31, 2022, was estimated using the following Black-Scholes option pricing model assumptions:

 

   2022 
Expected dividend yield   0%
Risk-free interest rate   4.04%
Expected volatility   116%
Expected life (in years)   6.8 
Schedule of Outstanding Restricted Stock Units

The following table summarized the outstanding RSU’s as of December 31, 2022:

 

   RSU’s 
Outstanding at January 1, 2021   347,108 
Granted   840,983 
Released   (286,542)
Forfeited   (40,661)
Outstanding at December 31, 2022   860,888