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Fair Value Measurement - Schedule of Financial Instruments Measured at Fair Value (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Assets
Short-term investments	$ 4,017
Recurring
Assets
Short-term investments	4,017
Recurring | Corporate Bonds
Assets
Short-term investments	4,017
Recurring | Level 2
Assets
Short-term investments	4,017
Recurring | Level 2 | Corporate Bonds
Assets
Short-term investments	$ 4,017

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
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-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

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