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Shareholders' Equity (Tables) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Shareholders' Equity [Abstract] |  |
Schedule of Composed Of Common Stock and Non-Voting Common Stock |  | The Company’s share capital as of December 31, 2022, and 2021, is composed of common stock and Non-voting common stock, of $0.0001 par value, as follows:
|  | December 31, 2022
|  | Authorized |  | Issued and outstanding
|  | Number of shares
Common stock |  | 30,000,000 |  | 17,379,861
Non-voting Common stock |  | 2,803,774 |  | —
|  | December 31, 2021
|  | Authorized |  | Issued and outstanding
|  | Number of shares
Common stock |  | 11,009,315 |  | 2,050,404
Non-voting Common stock |  | 2,803,774 |  | 1,783,773
Schedule of Awards Granted |  | During the year ended December 31, 2022, the following awards were granted:
Award Type (2015 Plan) |  | Number of Awards |  | Vesting Conditions |  | Expiration Date
Options |  | 167,779 |  | Over 4 years from grant date-25% every year |  | 10th anniversary of Grant Date
RSU |  | 592,000 |  | Over 3 years from grant date |  |
Schedule of Share Options, Granted to Employees, Directors, Under Option Plans | A summary of the Company’s share options, granted to employees, directors, under option plans is as follows:
|  | Number of options |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Life
Outstanding – January 1, 2023 (*) |  | 96,458 |  |  | $ | 4.89 |  | 5.34
Granted |  | 400 |  |  |  | 1.48 |  |
Exercised |  | (2,489 | ) |  | $ | 0.90 |  |
Expired and forfeited |  | (3,992 | ) |  | $ | 28.16 |  |
Outstanding – September 30, 2023 |  | 90,377 |  |  | $ | 3.94 |  | 4.44
Exercisable – September 30, 2023 |  | 77,759 |  |  | $ | 2.23 |  | 3.85
2) Restricted Stock Units (*): | A summary of the Company’s share option activity under option plans is as follows:
|  | Number of Options |  | Weighted- Average Exercise Price |  | Weighted Average Remaining Contractual Life
Outstanding – January 1, 2022 |  | 890,493 |  |  | $ | 0.1518 |  | 5.43
Granted |  | 167,779 |  |  | $ | 2.1964 |  |
Exercised |  | (77,749 | ) |  | $ | 0.0812 |  |
Expired and forfeited |  | (15,937 | ) |  | $ | 1.5089 |  |
Outstanding – December 31, 2022 |  | 964,586 |  |  | $ | 0.4891 |  | 5.34
Exercisable – December 31, 2022 |  | 771,956 |  |  | $ | 0.1476 |  | 4.36
|  | Number of Options |  | Weighted- Average Exercise Price |  | Weighted Average Remaining Contractual Life
Outstanding – January 1, 2021 |  | 879,251 |  |  | $ | 0.0874 |  | 6.25
Granted |  | 43,261 |  |  | $ | 1.3616 |  |
Exercised |  | (2,763 | ) |  | $ | 0.1058 |  |
Expired and forfeited |  | (29,256 | ) |  | $ | 0.0874 |  |
Outstanding – December 31, 2021 |  | 890,493 |  |  | $ | 0.1518 |  | 5.43
Exercisable – December 31, 2021 |  | 801,562 |  |  | $ | 0.276 |  | 5.10
Schedule of Ordinary Shares Issuable Upon Outstanding Options and Exercisable Options |  | The following table summarize information as of December 31, 2022, regarding the number of ordinary shares issuable upon outstanding options and exercisable options:
Exercise price |  | Options outstanding as of December 31, 2022 |  | Weighted average remaining contractual life (years) |  | Options exercisable as of December 31, 2022 |  | Weighted average remaining contractual life (years)
0.0644 |  | 312,357 |  | 2.61 |  | 312,357 |  | 2.61
0.1058 |  | 449,885 |  | 5.43 |  | 437,516 |  | 5.39
0.5780 |  | 88,431 |  | 9.96 |  | — |  | —
1.3616 |  | 38,912 |  | 8.41 |  | 15,472 |  | 8.41
4 |  | 75,001 |  | 9.2 |  | 6,611 |  | 9.7
Schedule of Fair Value of the Share Options Granted |  | Key assumptions used to estimate the fair value of the share options granted during the year ended December 31, 2022 and 2021 included:
|  | Year Ended December 31
|  | 2022 |  | 2021
Expected term of options (years) |  | 10 |  |  | 5.4 |
Expected common stock price volatility* |  | 54 | % |  | 58 | %
Expected dividend rate |  | 0 | % |  | 0 | %
Risk-free interest rate |  | 3.21 | % – 3.25% |  | 0.97 | %
* The expected volatility was based on the historical stock prices of publicly traded comparable companies.
Schedule of Share-Based Compensation Expense for Share Options |  | Share-based compensation expense for share options in the consolidated statement of comprehensive loss is summarized as follows:
|  | Year Ended December 31
|  | 2022 |  | 2021
Cost of revenues |  | 3 |  | 3
Research and development |  | 26 |  | 24
Sales and marketing |  | 11 |  | 16
General and administrative |  | 12 |  | 10
Total Share-based compensation expense |  | 52 |  | 53
Schedule of RSUs Outstanding | The following table summarize information as of September 30, 2023, regarding the number of RSUs outstanding:
|  | September 30 2023
|  | Number of RSUs |  | Weighted- Average Grant Date Fair Value
RSUs outstanding at the beginning of the year (*) |  | 59,200 |  |  | $ | 16.2
Granted during the period |  | 39,100 |  |  |  | 3.38
Vested during the period |  | (16,954 | ) |  |  | 18.1
Forfeited during the period |  | (8,400 | ) |  |  | 4.8
Outstanding as of September 30, 2023 |  | 72,945 |  |  | $ | 11.1
(*) Adjusted to reflect April 2023 reverse stock split, see note 3(f). | The following table summarize information as of December 31, 2022, regarding the number of RSUs outstanding:
|  | December 31, 2022
|  | Number of RSUs |  | Weighted- Average Grant Date Fair Value
RSUs outstanding at the beginning of the year |  | — |  |  | —
Granted during the year |  | 592,000 |  | $ | 1.62
Exercised during the year |  | — |  |  | —
Forfeited during the year |  | — |  |  | —
Outstanding at the end of the year |  | 592,000 |  | $ | 1.62
Schedule of Share-Based Compensation Expense for RSUs |  | Share-based compensation expense for RSUs in the consolidated statement of comprehensive loss is summarized as follows:
|  | Year Ended December 31
|  | 2022 |  | 2021
|  | U.S. dollars in thousands
Research and development |  | 21 |  | —
Sales and marketing |  | 12 |  | —
General and administrative |  | 135 |  | —
Total Share-based compensation expense |  | 168 |  | —

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