Costs and Estimated Earnings on Uncompleted Contracts (Narrative) (Details) - Customer Concentration Risk [Member] - Contract with Customer [Member] - customer |
3 Months Ended | 12 Months Ended |
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Mar. 31, 2026 |
Dec. 31, 2025 |
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| Concentration Risk [Line Items] | ||
| Number of significant customers | 2 | 2 |
| Two Largest Customers [Member] | ||
| Concentration Risk [Line Items] | ||
| Concentration risk percentage | 94.70% | 95.40% |
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- Definition Number of significant customers. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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