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Other Liabilities (Summary Of Other Liabilities Including Pension) (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Dec. 31, 2025
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Other Liabilities [Abstract] |  |
Accrued pension | $ 583 | $ 575
Security deposit payable | 165 | 165
Other | 34 | 34
Other current liabilities | 782 | 774
Lease make-good provision | 6,458 | 6,284
Accrued pension | 1,541 | 1,747
Deferred rent liability | 3,531 | 3,439
Environmental reserve | 1,656 | 1,656
Other non-current liabilities | $ 13,186 | $ 13,126

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