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Accounts payable and accrued liabilities - Accounts payable and accrued liabilities (Detail) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Accrued liabilities: |  |
Employee benefits | $ 10,712 | $ 10,489
Deferred revenue | 559 | 243
Insurance | 289 | 255
Taxes other than on income | 285 | 279
Advances from customers | 267 | 298
Customer tooling | 145 | 135
Other | 340 | 382
Total accounts payable and accrued liabilities | 15,745 | 15,618
Security Products |  |
Accounts payable: |  |
Accounts payable | 2,514 | 2,663
Marine Components |  |
Accounts payable: |  |
Accounts payable | $ 634 | $ 874

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