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Subsequent Event - Additional Information (Details) - USD ($) | Mar. 19, 2021 | Nov. 06, 2019
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LGL Systems Acquisition Holdings Company, LLC [Member] |  |
Subsequent Event [Line Items] |  |
Contribution to fund purchase of private warrants |  | $ 3,350,000
Subsequent Event [Member] | IronNet Cybersecurity, Inc. [Member] |  |
Subsequent Event [Line Items] |  |
Number of sponsorship owned, shares | 5,660,000 |
Class of warrants held | 12,500,000 |
Subsequent Event [Member] | PIPE [Member] |  |
Subsequent Event [Line Items] |  |
Aggregate loan amount to cover expense related to SPAC IPO pursuant to promissory note | $ 125,000,000 |
Subsequent Event [Member] | LGL Systems Acquisition Holdings Company, LLC [Member] |  |
Subsequent Event [Line Items] |  |
Contribution to fund purchase of private warrants | $ 2,725,000 |

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- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Definition Cumulative number of shares issued or sold by the subsidiary or equity method investee on all stock transactions. + References No definition available. + Details
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