Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.23.3
Stock-Based Compensation (Tables)
9 Months Ended
Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock-Based Compensation Related to Stock Options and RSUs The following table presents the stock-based compensation related to stock option and RSU awards for the periods presented:
Three Months Ended September 30, Nine Months Ended September 30,
2023 2022 2023 2022
Stock options expense    
Cost of revenues $ 5 $ 3 $ 12 $ 13
Research and development 4 5 11 24
Selling, general and administrative 323 239 842 623
Total stock options expense $ 332 $ 247 $ 865 $ 660
Restricted stock units expense    
Cost of revenues $ 99 $ 98 $ 259 $ 205
Research and development 43 44 97 123
Selling, general and administrative 1,150 1,081 3,204 2,890
Total restricted stock units expense $ 1,292 $ 1,223 $ 3,560 $ 3,218
Total stock-based compensation $ 1,624 $ 1,470 $ 4,425 $ 3,878
Schedule of Unrecognized Expense for Stock Options and RSUs
The estimated unrecognized expense for stock options and RSUs not vested as of September 30, 2023, which will be recognized over the remaining requisite service period, is as follows:

Stock options unrecognized expense $ 2,371 
Stock options weighted-average remaining requisite service period (in years) 2.1
Restricted stock units unrecognized expense $ 6,964 
Restricted stock units weighted-average remaining requisite service period (in years) 1.7
Schedule of Stock Options Changes in the Company’s stock options for the nine months ended September 30, 2023 are presented in the table below.
Number of
Options
Weighted
Average
Exercise Price
per Share
Aggregate
Intrinsic
Value
(in thousands)
Weighted
Average
Remaining Life
(in years)
Outstanding at January 1, 2023 138,091 $ 45.60
Granted $
Exercised (9,502) $ 1.08
Forfeited (4,189) $ 14.52
Expired (1,093) $
Outstanding at September 30, 2023
123,307 $ 50.19 $ 7.3
Vested and exercisable at September 30, 2023
73,099 $ 38.69 $ 7.0
Schedule of Non-Vested Share Awards
Changes in the status of the Company’s non-vested stock option awards for the nine months ended September 30, 2023 are presented in the table below.
Non-vested
Shares Under
Option
Weighted
Average
Grant Date
Fair Value per
Share
Non-vested at January 1, 2023 73,939 $ 35.00
Granted $
Vested (18,691) $ 70.00
Forfeited (5,040) $ 36.39
Non-vested at September 30, 2023
50,208 $ 56.75
Schedule of Restricted Stock Awards
The Company grants RSU awards to employees that generally vest over 3 years. RSU awards are valued based on the closing market price of the Company’s common stock on the grant date.
Number of
RSUs
Weighted
Average
Grant Date
Fair Value per
Share
Outstanding at January 1, 2023 188,223 $ 71.40
Granted 239,189 $ 5.45
Vested (44,661) $ 86.30
Forfeited (38,219) $ 52.01
Outstanding at September 30, 2023
344,532 $ 25.78