Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation (Tables)

v3.23.1
Stock-based Compensation (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]  
Summary of Shares Available for Future Grant The 2014 Plan has since been amended and restated with approval by the stockholders to increase the maximum number of shares issuable, as shown in the table below:
Original share pool 137 
2015 increase 111 
June 2017 increase 67 
December 2017 increase (ratified in June 2018) 293 
2019 increase 233 
March 2020 increase 333 
December 2020 increase 800 
June 2022 increase 550 
Total share authorized for grant as of December 31, 2022 2,524 
Shares available for future grant under the 2014 Plan was as follows:
Shares Available For Grant
Available as of December 31, 2021 587 
Share pool increase 550 
Granted (1,499)
Forfeited 243 
Expired 169 
Available as of December 31, 2022 50 
Summary of Stock Option Activity
A summary of the stock option activity during the year ended December 31, 2022 is presented below:
Options
Outstanding		 Weighted
Average
Exercise
Price		 Weighted
Average
Remaining
Contractual
Life (Years)		 Aggregate
Intrinsic
Value
Outstanding at beginning of year 491  $ 32.53 
Forfeited (51) $ 12.66 
Expired (170) $ 29.86 
Outstanding at end of year 270  $ 37.96  5.26 $ — 
Vested and expected to vest 270  $ 37.96  5.26 $ — 
Exercisable at year end 261  $ 38.93  5.21 $ — 
The following table summarizes information about stock options outstanding as of December 31, 2022:
Options Outstanding Options Exercisable
Range of
Exercise
Prices		 Number of
Shares		 Weighted-Average
Remaining
Contractual Life
(Years)		 Weighted
Average
Price		 Number of
Shares		 Weighted
Average
Price
$5.55 - $9.15
 98  7 $ 6.66  90  $ 6.51 
$16.95 - $27.90
 60  5.36 $ 23.52  59  $ 23.52 
$30.75 - $85.50
 74  4.87 $ 39.75  75  $ 39.75 
$101.85 - $229.95
 38  1.85 $ 138.41  37  $ 138.41 
270  5.26 $ 37.96  261  $ 38.93 
Schedule of Unvested Restricted Stock Units Activity
Combined RSU and PSU activity for the year ended December 31, 2022 is summarized below:
Number of
Shares
 Weighted
Average Grant-
Date Fair Value
Unvested as of January 1, 2022 655  $ 5.63 
Granted 1,499  $ 1.76 
Vested (579) $ 3.93 
Forfeited (192) $ 5.52 
Unvested as of December 31, 2022 1,383  $ 2.17 
Schedule of Stock-based Compensation Expense Related to Stock Options and RSUs Granted to Employees and Non-employees Stock-based compensation expense related to stock options, RSUs and PSUs was recorded as follows:
Years Ended December 31,
2022 2021
Sales and marketing $ 263  $ 450 
Research and development 339  270 
General and administrative 1,944  1,609 
$ 2,546  $ 2,329