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Stock-based Compensation - Summary of Share-Based Compensation Recognized (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Share-based compensation expense | $ 247 | $ 127
Research and Development [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Share-based compensation expense | 32 | 40
General and Administrative [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Share-based compensation expense | $ 215 | $ 87

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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