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Accounts payable and accrued liabilities | 12 Months Ended
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Dec. 31, 2024
Accounts payable and accrued liabilities [Abstract] |
Accounts payable and accrued liabilities | Note 7 – Accounts payable and accrued liabilities: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, | ​ | December 31,
​ |  | 2023 |  | 2024
​ | ​ | (In thousands)
Accounts payable: |  | ​ |  |  | ​ |
Security Products | ​ | $ | 2,514 | ​ | $ | 3,016
Marine Components | ​ |  | 634 | ​ |  | 671
Accrued liabilities: | ​ |  |  | ​ |  |
Employee benefits | ​ |  | 10,712 | ​ |  | 9,794
Taxes other than on income | ​ |  | 285 | ​ |  | 295
Insurance | ​ |  | 289 | ​ |  | 280
Professional services | ​ | ​ | — | ​ | ​ | 263
Customer tooling | ​ |  | 145 | ​ |  | 147
Advances from customers | ​ | ​ | 267 | ​ | ​ | 100
Deferred revenue | ​ | ​ | 559 | ​ | ​ | 97
Other | ​ |  | 340 | ​ |  | 308
Total | ​ | $ | 15,745 | ​ | $ | 14,971
​

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