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Commitments and Contingencies - Summary of Contractual Obligations (Detail) $ in Thousands | Dec. 31, 2020 USD ($)
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Contractual Obligation Fiscal Year Maturity Schedule [Line Items] |
Total | $ 167
Less than 1 year | 93
1-3 years | 74
Seattle Office Operating Lease [Member] |
Contractual Obligation Fiscal Year Maturity Schedule [Line Items] |
Total | 25
Less than 1 year | 25
Vancouver Office Operating Lease - New [Member] |
Contractual Obligation Fiscal Year Maturity Schedule [Line Items] |
Total | 142
Less than 1 year | 68
1-3 years | $ 74

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- Definition Contractual obligation fiscal year maturity schedule. + References No definition available. + Details
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Balance Type: | na
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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Definition Amount of contractual obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation to be paid in second and third fiscal years following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |