Fair Value Measurements - Common stock warrant liability (Details) - Evolv Technologies Holdings Inc [Member] - Common Stock Warrant $ in Thousands |
3 Months Ended |
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Mar. 31, 2021
USD ($)
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| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | |
| Balance at beginning | $ 1 |
| Change in fair value | 736 |
| Balance at ending | $ 737 |
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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 gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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