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Share Capital (Narrative) (Details) - USD ($) |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 15, 2021 | Nov. 16, 2022 | Sep. 19, 2022 | Apr. 30, 2021 | Mar. 23, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2022
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Options to purchase ADS cancelled |  |  |  |  |  | 1,240,120 | 1,712,275 |
2015 plan [Member] |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Number of ADSs issued |  |  |  |  |  | 172,276 |  |
Number of stock reserved for issuance |  |  |  |  |  | 28,443,060 |  |
Number Of Stock Adss Resvered For Issuance |  |  |  |  |  | 1,422,153 |  |
Number of ADSs options issuable outstanding |  |  |  |  |  | 1,173,037 |  |
Number of options issuable outstanding |  |  |  |  |  | 23,460,740 |  |
Number of ADSs vested and exercisable |  |  |  |  |  | 620,036 |  |
Number of options vested and exercisable |  |  |  |  |  | 12,400,720 |  |
Weighted average exercise price |  |  |  |  |  | $ 0.3 |  |
Weighted average exercise price of ADSs |  |  |  |  |  | $ 5.96 |  |
Number of shares issued |  |  |  |  |  | 3,445,520 |  |
Options to purchase ADS cancelled |  |  |  |  |  | 1,240,120 |  |
Options to purchase ordinary shares cancelled |  |  |  |  |  | 62,006 |  |
2017 plan [Member] |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Number of ADSs issued |  |  |  |  |  | 586,540 |  |
Number of stock reserved for issuance |  |  |  |  |  | 12,511,620 |  |
Number Of Stock Adss Resvered For Issuance |  |  |  |  |  | 625,581 |  |
Number of ADSs vested and exercisable |  |  |  |  |  | 21,377 |  |
Number of options vested and exercisable |  |  |  |  |  | 427,540 |  |
Weighted average exercise price |  |  |  |  |  | $ 0.35 |  |
Weighted average exercise price of ADSs |  |  |  |  |  | $ 6.98 |  |
Number of shares issued |  |  |  |  |  | 11,730,800 |  |
The Private Placement [Member] |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Proceeds from sale of ADS's | $ 45,500,000 |  |  |  | $ 4,500,000 |  |  |
Number of ADSs issued |  |  |  |  | 261,929 |  |  |
Number of warrants purchase ADS's |  |  |  |  | 2,619,270 |  |  |
Share price per share |  |  |  |  | $ 17.35 |  |  |
ATM agreement [Member] |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Aggregate offering price of at the market offering agreement |  |  |  | $ 75,000,000 |  | $ 18,125,000 |  |
Proceeds from sale of ADS's |  |  |  | $ 15,917,000 |  | $ 275,000 |  |
Number of ADSs issued |  |  |  | 699,806 |  | 130,505 |  |
Share price per share |  |  |  | $ 22.75 |  | $ 2.11 |  |
Repurchase Arrangement [Member] |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |
Repurchase of ADSs |  |  |  |  |  |  |  | $ 2,500,000
Number of shares repurchase of ADSs |  | 582,023 | 582,023 |  |  |  |  |
Weighted average price of repurchase of ADSs |  | $ 2.0848 |  |  |  |  |  |
Total consideration of repurchase of ADSs |  | $ 1,218,000 |  |  |  |  |  |

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