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Facility Lease - Lessee information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 46 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 31, 2021 ft² | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Oct. 31, 2018 USD ($) | Dec. 31, 2022 USD ($) | Sep. 30, 2021 ft² | Feb. 01, 2015 ft²
Lease |  |  |  |  |  |  |  |  |
Increase in operating lease right-of-use asset |  |  |  | $ 794 | $ 723 |  |  |  |
Increase in the operating lease liability |  |  |  | 911 | 777 |  |  |  |
Operating lease right-of-use asset |  | $ 1,423 |  | 1,423 |  |  | $ 2,217 |  |
Sublease income - related party |  |  | $ 147 | 56 | $ 439 |  |  |  |
Burlingame, California Office |  |  |  |  |  |  |  |  |
Lease |  |  |  |  |  |  |  |  |
Area of leased facility | ft² |  |  |  |  |  |  |  | 27,280 | 8,138
Lease term |  |  |  |  |  |  |  |  | 1 year
Landlord Provided Free Rent And Lease Incentives |  |  |  |  |  | $ 1,900 |  |  |
Area Of Property Subleased | ft² | 7,585 |  |  |  |  |  |  |  |
Sublease income - related party |  | $ 0 |  | $ 100 |  |  |  |  |

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- Definition Amount of increase (decrease) in operating lease liabilities. + References No definition available. + Details
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- Definition Amount of increase (decrease) in operating lease right of use asset. + References No definition available. + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-3 + Details
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- Definition Amount of lessee's right to use underlying asset under operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479041/842-20-45-1 + Details
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