Revenue recognition - Schedule of Disaggregation of Net Sales By Reporting Unit (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Net sales	$ 33,667	$ 40,355	$ 107,525	$ 118,122
Security Products
Disaggregation Of Revenue [Line Items]
Net sales	26,567	31,376	84,667	84,390
Marine Components
Disaggregation Of Revenue [Line Items]
Net sales	$ 7,100	$ 8,979	$ 22,858	$ 33,732

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.

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.

+ References

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+ Details