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Summary of Significant Accounting Policies - Fair Value Measurements (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Assets: |  |
Assets fair value | $ 5,484 | $ 5,389
Cash equivalents | Money Market Funds |  |
Assets: |  |
Assets fair value | 5,484 | 5,318
Short-term Investments | Asset-backed securities |  |
Assets: |  |
Assets fair value |  | 71
Level 1 |  |
Assets: |  |
Assets fair value | 5,484 | 5,318
Level 1 | Cash equivalents | Money Market Funds |  |
Assets: |  |
Assets fair value | 5,484 | 5,318
Level 2 |  |
Assets: |  |
Assets fair value | $ 0 | 71
Level 2 | Short-term Investments | Asset-backed securities |  |
Assets: |  |
Assets fair value |  | $ 71

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-2 + Details
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