Accounts payable and accrued liabilities - Accounts payable and accrued liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accrued liabilities:
Employee benefits	$ 6,862	$ 10,712
Deferred revenue	461	559
Insurance	334	289
Taxes other than on income	344	285
Advances from customers	133	267
Customer tooling	347	145
Professional services	533
Other	359	340
Total accounts payable and accrued liabilities	13,164	15,745
Security Products
Accounts payable:
Accounts payable	3,103	2,514
Marine Components
Accounts payable:
Accounts payable	680	$ 634
Corporate
Accounts payable:
Accounts payable	$ 8