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Accounts receivable, net - Schedule of Accounts receivable, net (Detail) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Accounts Notes And Loans Receivable [Line Items]
Allowance for doubtful accounts	$ (70)	$ (70)
Total accounts receivable, net	18,030	14,113
Security Products
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net	14,352	12,149
Marine Components
Accounts Notes And Loans Receivable [Line Items]
Accounts receivable, net	$ 3,748	$ 2,034

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