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Exercise price per share or per unit of warrants or rights outstanding.

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Equity Investment in Unconsolidated Subsidiary - Additional Information (Details) - USD ($)		3 Months Ended
	Nov. 06, 2019	Mar. 31, 2021	Mar. 31, 2020
Schedule Of Equity Method Investments [Line Items]
Investment funded description		The Company subscribed to a $2.725 million investment into the Sponsor in March 2021 which it funded in May 2021.
Investment amount under sponser syndication		$ 5,660,000
Common Class A \| Private Placement
Schedule Of Equity Method Investments [Line Items]
Amount of share under private placement		$ 125,000,000
Shares issued under private placement		12,500,000
LGL Systems Acquisition Holdings Company, LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Contribution to fund purchase of private warrants	$ 3,350,000
Percentage of risk capital contributed to effect IPO		62.20%
Number of restricted and non-tradeable shares held		5,200,000
Proceeds from subscription of investment		$ 2,725,000
LGL Systems Acquisition Holdings Company, LLC [Member] \| L G L Systems Acquisition Corp
Schedule Of Equity Method Investments [Line Items]
Percentage of risk capital contributed to effect IPO		20.00%
Amount raised through offering		$ 172,500,000
Class of warrants held		5,200,000
LGL Systems Acquisition Holdings Company, LLC [Member] \| Private Placement
Schedule Of Equity Method Investments [Line Items]
Warrant exercise/ strike price		$ 11.50
LGL Systems Acquisition Holdings Company, LLC [Member] \| Class B Common Shares [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage of sponsorship owned		100.00%
LGL Systems Acquisition Holdings Company, LLC [Member] \| Common Stock [Member] \| Private Placement
Schedule Of Equity Method Investments [Line Items]
Warrant exercisable to purchase common stock		1
LGL Systems Acquisition Holdings Company, LLC [Member]
Schedule Of Equity Method Investments [Line Items]
Equity losses		$ 76,000	$ 39,000
Cumulative loss on investments		$ 354,000
LGL Systems Acquisition Holdings Company, LLC [Member] \| Minimum [Member]
Schedule Of Equity Method Investments [Line Items]
Percentage of sponsorship owned		10.00%