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Revenue recognition (Tables) | 9 Months Ended
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Sep. 30, 2025
Revenue recognition |
Schedule of Disaggregation of Net Sales by Reporting Unit | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Nine months ended
​ | ​ | September 30, | ​ | September 30,
​ |  | 2024 |  | 2025 |  | 2024 |  | 2025
​ | ​ | (In thousands)
Net sales: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Security Products | ​ | $ | 26,567 | ​ | $ | 30,266 | ​ | $ | 84,667 | ​ | $ | 91,179
Marine Components | ​ |  | 7,100 | ​ |  | 9,684 | ​ |  | 22,858 | ​ |  | 29,409
Total | ​ | $ | 33,667 | ​ | $ | 39,950 | ​ | $ | 107,525 | ​ | $ | 120,588
​

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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