Segment Information - Schedule of Revenue by Principal Product Lines (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Entity Wide Information Revenue From External Customer [Line Items]
Revenue	$ 16,028	$ 14,556
Security Surveillance
Entity Wide Information Revenue From External Customer [Line Items]
Revenue	6,491	8,251
Automotive
Entity Wide Information Revenue From External Customer [Line Items]
Revenue	$ 9,537	$ 6,305

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details