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v3.22.2.2

General - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 26, 2022 | Jul. 20, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Retained Earnings Accumulated Deficit |  |  | $ (447,341) |  | $ (420,976)
Proceeds from issuance of private placement |  |  | $ 4,896 | $ 0 |
Subsequent Event [Member] | XNCM [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Market value of listed securities | $ 35 |  |  |  |
Cut off date on or before which compliance with the requirement of market value of listed securities is considered | Apr. 24, 2023 |  |  |  |
Number of additional days for complying with the requirement of market value of listed securities | 180 days |  |  |  |
Subsequent Event [Member] | Maximum [Member] | XNCM [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Consecutive days for complying with the requirement of market value of listed securities | 20 days |  |  |  |
Subsequent Event [Member] | Minimum [Member] | XNCM [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Consecutive days for complying with the requirement of market value of listed securities | 10 days |  |  |  |
Private Placement [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Sale Of stock price per share |  | $ 3.98 |  |  |
Proceeds from issuance of private placement |  | $ 5,000 |  |  |
Private Placement [Member] | Common Stock [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Stock issued during period shares |  | 690,954 |  |  |
Private Placement [Member] | PreFundedWarrants [Member] |  |  |  |  |
OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPolicies [Line Items] |  |  |  |  |
Class of warrants and rights issued during the period |  | 566,751 |  |  |
Class of warrants and rights issued, price per warrant |  | $ 3.97 |  |  |
Exercise price of warrant |  | $ 0.01 |  |  |

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