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 9.
Stock-Based Compensation 
  
There
have been no material changes to the terms of our various equity incentive plans since the filing of our Annual Report on Form 10-K.
Refer to Note 13, “Stock-Based Compensation,” in our Annual Report on Form 10-K filed with the SEC on March 15, 2024
for more information. 
  
Stock-Based
Compensation 
  
Compensation
costs that have been included in our condensed consolidated statements of operations and comprehensive loss for all stock-based compensation
arrangements is set forth below: 
Schedule
of Stock Based Compensation  
  
    | Stock-based compensation | 
  | 
    2024 | 
  | 
  | 
    2023 | 
  | 
  | 
    2024 | 
  | 
  | 
    2023 | 
  | 
 
    |   | 
  | 
    Three Months Ended June 30, | 
  | 
  | 
    Six Months Ended June 30, | 
  | 
 
  
    | Stock-based compensation | 
  | 
    2024 | 
  | 
  | 
    2023 | 
  | 
  | 
    2024 | 
  | 
  | 
    2023 | 
  | 
 
  
    | Cost of revenues | 
  | 
    $ | 
49 | 
  | 
  | 
    $ | 
111 | 
  | 
  | 
    $ | 
94 | 
  | 
  | 
    $ | 
364 | 
  | 
 
  
    | Sales and marketing | 
  | 
      | 
17 | 
  | 
  | 
      | 
35 | 
  | 
  | 
      | 
31 | 
  | 
  | 
      | 
132 | 
  | 
 
  
    | General and administrative | 
  | 
      | 
570 | 
  | 
  | 
      | 
1,260 | 
  | 
  | 
      | 
1,126 | 
  | 
  | 
      | 
2,119 | 
  | 
 
  
    | Research and development | 
  | 
      | 
24 | 
  | 
  | 
      | 
56 | 
  | 
  | 
      | 
39 | 
  | 
  | 
      | 
209 | 
  | 
 
  
    | Total stock-based compensation | 
  | 
    $ | 
660 | 
  | 
  | 
    $ | 
1,462 | 
  | 
  | 
    $ | 
1,290 | 
  | 
  | 
    $ | 
2,824 | 
  | 
 
   
  
As
of June 30, 2024, there was approximately $1,313 of total unrecognized compensation cost related to our stock benefit plans. These unrecognized
compensation costs are expected to be recognized over an estimated weighted-average period of approximately 1.94 years. 
  
Restricted
Stock Units 
  
A
summary of our restricted stock unit activity for the six months ended June 30, 2024 is set forth below: 
Schedule
of Restricted Stock Unit Activity  
  
    |   | 
  | 
    Shares | 
  | 
  | 
    Weighted Average Grant Date Fair Value | 
  | 
 
  
    | Outstanding as of December 31, 2023 | 
  | 
      | 
96,808 | 
  | 
  | 
    $ | 
25.21 | 
  | 
 
  
    | Granted | 
  | 
      | 
84,081 | 
  | 
  | 
      | 
5.63 | 
  | 
 
  
    | Released | 
  | 
      | 
(110,570 | 
) | 
  | 
      | 
11.05 | 
  | 
 
  
    | Forfeited | 
  | 
      | 
(48 | 
) | 
  | 
      | 
46.50 | 
  | 
 
  
    | Outstanding as of June 30, 2024 | 
  | 
      | 
70,271 | 
  | 
  | 
    $ | 
24.05 | 
  | 
 
   
  
  
Stock
Options 
  
A
summary of our stock option activity under the 2018 Equity Incentive Plan (the “2018 Plan) and related information is as follows: 
Schedule of Stock Option Activity  
  
    |   | 
  | 
    
 Number of 
                                                                                Shares 
 | 
  | 
  | 
    
 Weighted 
                                                                                 Average  Exercise Price 
 | 
  | 
  | 
    
 Weighted 
                                                                                 Average  Remaining  Contractual Term  (years) 
 | 
  | 
  | 
    
 Aggregate  Intrinsic  Value 
 | 
  | 
 
  
    | Outstanding as of December 31, 2023 | 
  | 
      | 
2,500 | 
  | 
  | 
    $ | 
56.89 | 
  | 
  | 
      | 
4.2 | 
  | 
  | 
    $ | 
— | 
  | 
 
  
    | Granted | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Exercised | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Forfeited | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Outstanding as of June 30, 2024 | 
  | 
      | 
2,500 | 
  | 
  | 
    $ | 
56.89 | 
  | 
  | 
      | 
3.69 | 
  | 
  | 
    $ | 
— | 
  | 
 
  
    | Exercisable as of June 30, 2024 | 
  | 
      | 
2,500 | 
  | 
  | 
    $ | 
56.89 | 
  | 
  | 
      | 
3.69 | 
  | 
  | 
    $ | 
— | 
  | 
 
   
  
A
summary of our option activity under our 2009 Equity Incentive Plan (the “2009 Plan”) and related information is as follows: 
  
  
    |   | 
  | 
    
 Number of 
                                                                                Shares 
 | 
  | 
  | 
    
 Weighted 
                                                                                 Average   Exercise  Price 
 | 
  | 
  | 
    
 Weighted 
                                                                                 Average  Remaining  Contractual Term  (years) 
 | 
  | 
  | 
    
 Aggregate  Intrinsic  Value 
 | 
  | 
 
  
    | Outstanding as of December 31, 2023 | 
  | 
      | 
14,625 | 
  | 
  | 
    $ | 
39.67 | 
  | 
  | 
      | 
2.9 | 
  | 
  | 
    $ | 
— | 
  | 
 
  
    | Granted | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Exercised | 
  | 
      | 
— | 
  | 
  | 
      | 
— | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Forfeited | 
  | 
      | 
(8,802 | 
) | 
  | 
      | 
37.06 | 
  | 
  | 
      | 
  | 
  | 
  | 
      | 
  | 
  | 
 
  
    | Outstanding as of June 30, 2024 | 
  | 
      | 
5,823 | 
  | 
  | 
    $ | 
43.62 | 
  | 
  | 
      | 
2.97 | 
  | 
  | 
    $ | 
— | 
  | 
 
  
    | Exercisable as of June 30, 2024 | 
  | 
      | 
5,823 | 
  | 
  | 
    $ | 
43.62 | 
  | 
  | 
      | 
2.97 | 
  | 
  | 
    $ | 
— | 
  | 
 
   
  
Our
stock benefit plans had 204,170 and 86,837 shares of common stock reserved for future issuances under our equity incentive plans as of
June 30, 2024 and December 31, 2023, respectively. In addition, the shares of common stock reserved for issuance under the 2018 Plan
also will include any shares of common stock subject to stock options granted under the 2009 Plan, that expire or otherwise terminate
without having been exercised in full and shares of common stock issued pursuant to awards granted under the 2009 Plan that are forfeited.
As of June 30, 2024, the maximum number of shares of common stock that may be added to the 2018 Plan pursuant to the foregoing is 5,823. 
  
Furthermore,
there were 46,791 and 30,415 shares of common stock available for sale and reserved for issuance under our 2018 Employee Stock Purchase
Plan as of June 30, 2024 and December 31, 2023, respectively. 
  
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