v3.23.1
STOCK BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of stock-based compensation expense
         
  

Three Months Ended

March 31,

 
   2023   2022 
Research and development  $328   $244 
General and administrative   525    429 
Selling and Marketing   74    53 
Total  $927   $726 
Schedule of stock option activity
                  
   

Number of

Shares

  

Weighted-

Average

Exercise

Prices per Share

  

Weighted-
Average

Remaining

Contractual

Term (In Years)

   Intrinsic
Value
 
Outstanding at January 1, 2023    3,009   $7.07           
Granted    375   $6.56           
Exercised    (10)  $3.90           
Outstanding at March 31, 2023    3,374   $7.02    5.38   $2,430 
Exercisable at March 31, 2023    2,649   $6.49    4.40   $2,121 
Schedule of restricted stock option activity
                 
   

Number of

Shares

   

Weighted-Average

Grant Date Fair Value per Share

 
Outstanding at January 1, 2023     340     $ 10.78  
Granted     297     $ 6.56  
Vested     (55 )   $ 7.62  
Outstanding non-vested shares at March 31, 2023     582     $ 8.93