Other Liabilities (Summary Of Other Liabilities Including Pension) (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Other Liabilities [Abstract]
Accrued pension	$ 583	$ 575
Security deposit payable	130	165
Other	32	34
Other current liabilities	745	774
Lease make-good provision	6,500	6,284
Accrued pension	1,398	1,747
Deferred rent liability	3,713	3,439
Environmental reserve	1,656	1,656
Other non-current liabilities	$ 13,267	$ 13,126