Fair Value Measurements - Changes In Fair Values of Convertible Preferred Stock Warrants and Common Stock Warrants, Classified as Level 3 Financial Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Beginning balance	$ 306	$ 314
Fair value of warrants issued in connection with debt financing	128	128
Change in fair value	164	156
Ending balance	$ 598	$ 598

Fair value, measurement with unobservable inputs reconciliation, recurring basis, fair value of warrants issued in connection with debt financing.

No definition available.

+ Details

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- References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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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.

+ References

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