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Fair Value Measurements - Recurring Basis (Details) - Recurring - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Assets |  |
Cash and cash equivalents | $ 68,413 | $ 18,820
Short-term restricted cash | 45 |
Total assets | 68,458 | 18,820
Level 1 |  |
Assets |  |
Cash and cash equivalents | 68,413 | 18,820
Short-term restricted cash | 45 |
Total assets | 68,458 | 18,820
Level 2 |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Short-term restricted cash | 0 |
Total assets | 0 | 0
Level 3 |  |
Assets |  |
Cash and cash equivalents | 0 | 0
Short-term restricted cash | 0 |
Total assets | $ 0 | $ 0

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Investments which are not defined as or included in marketable (debt, equity, or other) securities whose use is restricted in whole or in part, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet. + References No definition available. + Details
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