Fair Value Measurement - Summary of Changes in Fair Value of Level 3 Financial Liabilities on Recurring Basis (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2021 |
Dec. 31, 2020 |
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||
| Gain on revaluation of warrants issued in 2021, June 2020, December 2019, and May 2019 equity financings | $ (3,962) | $ 3,056 |
| Warrant Liability | ||
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||
| Beginning balance | 6,037 | |
| Initial fair value of warrants in connection with 2021 financing | 1,936 | |
| Gain on revaluation of warrants issued in 2021, June 2020, December 2019, and May 2019 equity financings | (3,962) | |
| Reclassification of warrant liability to equity upon exercise of warrants | (2,461) | |
| Ending balance | $ 1,550 | $ 6,037 |
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- Definition Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Liability Value, Reclassification No definition available.
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- Definition Gain (Loss) On Warrant Liability No definition available.
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of issuances of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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