Convertible Preferred Stock - Preferred Stock (Details) - Evolv Technologies Holdings, Inc. - USD ($) $ / shares in Units, $ in Millions |
1 Months Ended | 2 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2020 |
Feb. 29, 2020 |
Dec. 31, 2019 |
Oct. 31, 2019 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2020 |
Jun. 30, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Temporary Equity [Line Items] | ||||||||||
| Number of shares issued and sold | 8,486,175 | 8,486,175 | 63,785,925 | |||||||
| Series B-1 Preferred Stock | ||||||||||
| Temporary Equity [Line Items] | ||||||||||
| Number of shares issued and sold | 50,632,353 | 8,486,175 | 13,153,572 | |||||||
| Purchase price | $ 0.3653 | $ 0.3653 | $ 0.3653 | $ 0.3653 | $ 0.3653 | |||||
| Aggregate proceeds from issuance | $ 4.8 | $ 18.5 | $ 3.1 | $ 3.1 | ||||||
| Issuance costs | $ 0.1 | $ 0.1 | $ 0.0 | $ 0.9 | $ 0.1 | |||||
| Conversion of convertible note into Series B-1 convertible preferred stock | 18,056,296 | 8,486,175 | ||||||||
| Conversion price | $ 0.3653 | $ 0.3653 | $ 0.3105 | $ 0.3653 | $ 0.3653 | |||||
| Settlement of principal and accrued interest | $ 5.6 | |||||||||
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- Definition Represents the price per share of temporary equity at the time of issuance. No definition available.
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- Definition Number of new stock classified as temporary equity issued during the period. No definition available.
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow from issuance of callable preferred stock which is identified as being convertible to another type of financial security at the option of the issuer or the holder. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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