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Stock-based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Summary of Share Option Plan | The following is a summary of the status of the Company’s share option plan as of December 31, 2021, as well as changes during the years:
|  | December 31, 2021 |
|  | Number of Options |  |  | Weighted- Average Exercise price |
Options outstanding at the beginning of the year |  |  | 15,955,892 |  |  | $ | 0.71 |
Granted during the year |  |  | 1,662,897 |  |  | $ | 0.90 |
Exercised during the year |  |  | (1,722,880 | ) |  | $ | 0.72 |
Forfeited during the year |  |  | (446,396 | ) |  | $ | 0.84 |
Outstanding at the end of the year |  |  | 15,449,513 |  |  | $ | 0.73 |
Options exercisable at year-end |  |  | 11,449,733 |  |  | $ | 0.68 |
Summary of Share Options Outstanding | The following table summarizes information about share options outstanding as of December 31, 2021:
Outstanding as of December 31, 2021 |  |  | Exercisable as of December 31, 2021 |
Range of exercise prices |  | Number outstanding |  |  | Weighted average remaining contractual term |  |  | Weighted average exercise price |  |  | Aggregate intrinsic value (U.S. dollars in thousands) |  |  | Number Exercisable |  |  | Weighted average remaining contractual term |  |  | Weighted Average exercise price |  |  | Aggregate intrinsic value (U.S. dollars in thousands) |
$0.15-$0.86 |  |  | 15,403,350 |  |  |  | 6.12 |  |  | $ | 0.72 |  |  |  | 107,517 |  |  |  | 11,416,017 |  |  |  | 5.29 |  |  | $ | 0.67 |  |  |  | 80,243 |
$1.87 |  |  | 5,963 |  |  |  | 9.03 |  |  | $ | 1.87 |  |  |  | 35 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
$2.10 |  |  | 33,126 |  |  |  | 2.69 |  |  | $ | 2.10 |  |  |  | 186 |  |  |  | 33,126 |  |  |  | 2.69 |  |  | $ | 2.10 |  |  |  | 186 |
$9.07 |  |  | 7,074 |  |  |  | 9.95 |  |  | $ | 9.07 |  |  |  | — |  |  |  | 590 |  |  |  | 9.95 |  |  | $ | 9.07 |  |  |  | — |
Summary of Options Granted Estimate the Fair Value of Stock-Based Compensation Award | The following assumptions were used for options granted during the year in order to estimate the fair value of stock-based compensation awards:
|  | 2021 |  |  | 2020 |
Expected term |  |  | 6-10 |  |  |  | 6-10 |
Expected volatility |  |  | 46.71%-50.7% |  |  |  | 48.15 | %
Expected dividend rate |  |  | 0 | % |  |  | 0 | %
Risk-free rate |  |  | 0.61%-1.74 | % |  |  | 0.42%-1.69 | %
Summary of Stock Options Expenses | The following table presents the classification of the stock options expenses for the periods indicated:
|  | Year Ended December 31 |
|  | 2021 |  |  | 2020 |  |  | 2019 |
|  | U.S. dollars in thousands |
Cost of revenue |  |  | 158 |  |  |  | 178 |  |  |  | 180 |
Research and development |  |  | 1,684 |  |  |  | 1,267 |  |  |  | 1,266 |
Selling, general and administrative |  |  | 7,981 |  |  |  | 3,884 |  |  |  | 1,418 |
Total stock-based compensation -Stock Options |  |  | 9,823 |  |  |  | 5,329 |  |  |  | 2,864 |
Summary of the RSU's | The following is a summary of the status of the Company’s RSU’s as of December 31, 2021, as well as changes during the year:
|  | December 31, 2021
|  | Number of RSUs |  |  | Weighted- Average Grant Date Fair Value
RSUs outstanding at the beginning of the year |  |  | — |  |  | —
Granted during the year |  |  | 133,384 |  |  | $7.89
Exercised during the year |  |  | — |  |  | —
Forfeited during the year |  |  | — |  |  | —
Outstanding at the end of the year |  |  | 133,384 |  |  | $7.89
RSUs exercisable at year-end |  |  | 616 |  |  | $7.89
Summary of Share-based Payment Arrangement, Restricted Stock Units Exercise Price Range |
Outstanding as of December 31, 2021 |  |  | Exercisable as of December 31, 2021 |
Range of exercise prices |  |  | Number outstanding |  |  | Weighted average remaining contractual term |  |  | Weighted average exercise price |  |  | Aggregate intrinsic value (U.S. dollars in thousands) |  |  | Number Exercisable |  |  | Weighted average remaining contractual term |  |  | Weighted Average exercise price |  |  | Aggregate intrinsic value (U.S. dollars in thousands) |
$ | 7.89 |  |  |  | 133,384 |  |  |  | 9.96 |  |  | $ | 7.89 |  |  | $ | 76 |  |  |  | 616 |  |  |  | 9.96 |  |  | $ | 7.89 |  |  |  | ( | *)
(*) Less than $1 thousand
Summary of Classification of RSU's Expenses | The following table presents the classification of RSU’s expenses for the periods indicated:
|  | Year Ended December 31 |
|  | 2021 |  |  | 2020 |  |  | 2019 |
|  | U.S. dollars in thousands |
Cost of revenue |  |  | 6 |  |  |  | — |  |  |  | — |
Research and development |  |  | 22 |  |  |  | — |  |  |  | — |
Selling, general and administrative |  |  | 18 |  |  |  | — |  |  |  | — |
Total stock-based compensation-RSUs |  |  | 46 |  |  |  | — |  |  |  | — |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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