Accounts payable and accrued liabilities - Accounts payable and accrued liabilities (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Accrued liabilities:
Employee benefits	$ 4,819	$ 10,712
Deferred revenue	104	559
Insurance	269	289
Taxes other than on income	453	285
Advances from customers	162	267
Customer tooling	254	145
Other	562	340
Total accounts payable and accrued liabilities	9,697	15,745
Security Products
Accounts payable:
Accounts payable	2,358	2,514
Marine Components
Accounts payable:
Accounts payable	643	$ 634
Corporate
Accounts payable:
Accounts payable	$ 73