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Fair Value Measurement - Assets and Liabilities on Recurring Basis (Details) $ in Thousands	Dec. 31, 2020 USD ($) shares
Liabilities
Warrants and rights outstanding (in shares) | shares	1,513,786
Fair Value, Recurring
Assets
Cash and cash equivalents	$ 5,877
Total fair value of assets measured on a recurring basis	5,877
Liabilities
Warrants	13,730
Total fair value of liabilities measured on a recurring basis	13,730
Level 1 | Fair Value, Recurring
Assets
Cash and cash equivalents	5,877
Total fair value of assets measured on a recurring basis	5,877
Liabilities
Warrants	0
Total fair value of liabilities measured on a recurring basis	0
Level 2 | Fair Value, Recurring
Assets
Cash and cash equivalents	0
Total fair value of assets measured on a recurring basis	0
Liabilities
Warrants	0
Total fair value of liabilities measured on a recurring basis	0
Level 3 | Fair Value, Recurring
Assets
Cash and cash equivalents	0
Total fair value of assets measured on a recurring basis	0
Liabilities
Warrants	13,730
Total fair value of liabilities measured on a recurring basis	$ 13,730

X

- 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=123874694&loc=d3e19207-110258

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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

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- Definition

Number of warrants or rights outstanding.

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- Definition

Fair value of financial and nonfinancial obligations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- Definition

Fair value portion of other liabilities.

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