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Commitments and Contingencies - Additional Information (Detail) |  |  |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 09, 2024 | Dec. 16, 2022 | Nov. 19, 2018 USD ($) ft² | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($)
Other Commitments [Line Items] |  |  |  |  |  |  |
Consolidated rent expense |  |  |  | $ 30,000 | $ 29,000 | $ 61,000 | $ 58,000
Indemnification obligations |  |  |  | $ 0 |  | 0 |
Expenses related to indemnification issues |  |  |  |  |  | $ 0 |
Vancouver Office Operating Lease [Member] | Vancouver, British Columbia [Member] |  |  |  |  |  |  |
Other Commitments [Line Items] |  |  |  |  |  |  |
Lease agreement commencement date | Feb. 01, 2025 | Feb. 01, 2023 | Feb. 01, 2019 |  |  |  |
Area of office space leased | ft² |  |  | 2,367 |  |  |  |
Operating lease, term of contract |  |  | 4 years |  |  |  |
Lessee, Operating Lease, Existence of Option to Extend [true false] |  | true |  |  |  |  |
Operating lease, extension term | 2 years | 2 years |  |  |  |  |
Annual rent expense |  |  | $ 100,000 |  |  |  |

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- Definition The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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- Definition Indicates (true false) whether lessee has option to extend operating lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 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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