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Stock-Based Compensation - Narrative (Details) | 1 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 30, 2020 shares | Sep. 30, 2022 USD ($) $ / shares shares | Sep. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) scheme $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Number of share based stock schemes | scheme |  |  |  | 5 |
Shares granted in period (in shares) | shares | 151,068 |  |  |  |
Vesting period |  |  |  | 10 years |
Compensation expense |  | $ 2,067,000 | $ 1,790,000 | $ 2,531,000 | $ 2,392,000
Unrecognized compensation costs |  | $ 3,835,000 |  | $ 6,120,000 |
Weighted-average grant date fair value of options granted (usd per share) | $ / shares |  |  |  | $ 6.29 | $ 3.99
Options |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Unrecognized cost, recognition period |  | 2 years 3 months 7 days |  | 2 years 8 months 12 days |
RSAs |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award requisite service period |  | 3 years |  | 3 years |
Compensation expense |  | $ 0 | $ 0 | $ 0 | $ 0
Unrecognized cost, recognition period |  | 10 years |  | 10 years |
Unvested shares outstanding (in shares) | shares |  | 579,660 |  | 580,000 | 325,000
Unvested shares weighted average fair value (usd per share) | $ / shares |  | $ 4.72 |  | $ 4.72 | $ 4.68
Minimum |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award requisite service period |  | 2 years |  | 2 years |
Maximum |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] |  |  |  |  |
Award requisite service period |  | 5 years |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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