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Other Liabilities (Summary Of Other Liabilities Including Pension) (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Other Liabilities [Abstract] |  |
Accrued pension | $ 684 | $ 684
Security deposit payable | 88 | 68
Finance lease liabilities | 20 | 28
Other | 32 | 33
Other current liabilities | 824 | 813
Lease make-good provision | 6,124 | 6,131
Accrued pension | 3,017 | 3,138
Deferred rent liability | 2,412 | 2,484
Environmental reserve | 1,656 | 1,656
Lease liability | 5,900 | 5,900
Acquired leases | 10 | 11
Other non-current liabilities | $ 19,119 | $ 19,320

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- Definition Acquired Leases, Noncurrent + References No definition available. + Details
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