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v3.22.1

Share Capital (Narrative) (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 7 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 15, 2021 USD ($) | Apr. 30, 2021 USD ($) | Mar. 23, 2021 USD ($) $ / shares shares | May 30, 2020 USD ($) | Nov. 30, 2019 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 shares | May 30, 2020 ₪ / shares shares | Nov. 30, 2019 ₪ / shares shares | Sep. 30, 2019 ₪ / shares shares
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Options to purchase ADS cancelled |  |  |  |  |  |  |  | 1,712,275 | 10,804 |  |  |
2015 plan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of ADSs issued |  |  |  |  |  |  |  | 73,776 |  |  |  |
Number of stock option ADSs reversed for issuance |  |  |  |  |  |  |  | 1,422,153 |  |  |  |
Number of ADSs options issuable outstanding |  |  |  |  |  |  |  | 1,326,723 |  |  |  |
Number of ADSs vested and exercisable |  |  |  |  |  |  |  | 452,230 |  |  |  |
Weighted average exercise price | $ / shares |  |  |  |  |  |  |  | $ 2.75 |  |  |  |
Options to purchase ADS cancelled |  |  |  |  |  |  |  | 35,653 |  |  |  |
Series C Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred shares issued |  |  |  |  |  |  |  |  |  | 34,130 |  | 130,831
Preferred shares par value | ₪ / shares |  |  |  |  |  |  |  |  |  | ₪ 0.01 |  | ₪ 0.01
Proceeds from preferred shares | $ |  |  |  | $ 3,000 | $ 500 | $ 11,484 |  |  |  |  |  |
Investors [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from exercise of warrants | $ |  |  |  |  |  |  | $ 1,250 |  |  |  |  |
Investors [Member] | Series C Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred shares issued |  |  |  |  |  |  |  |  |  |  | 34,130 |
Preferred shares par value | ₪ / shares |  |  |  |  |  |  |  |  |  |  | ₪ 0.01 |
Proceeds from preferred shares | $ |  |  |  |  | $ 3,000 |  |  |  |  |  |  |
The Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of ADS's | $ | $ 45,500 |  | $ 4,500 |  |  |  |  |  |  |  |  |
Number of ADSs issued |  |  | 261,929 |  |  |  |  |  |  |  |  |
Number of warrants purchase ADS's |  |  | 2,619,270 |  |  |  |  |  |  |  |  |
Share price per share | $ / shares |  |  | $ 17.35 |  |  |  |  |  |  |  |  |
ATM agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Sale Of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of ADS's | $ |  | $ 75,000 |  |  |  |  |  | $ 15,917 |  |  |  |
Number of ADSs issued |  |  |  |  |  |  |  | 699,806 |  |  |  |
Share price per share | $ / shares |  |  |  |  |  |  |  | $ 22.75 |  |  |  |

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