Other Liabilities (Summary Of Other Liabilities Including Pension) (Details) - USD ($) $ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| 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 |
| X | ||||||||||
- Definition Deferred Rent Liability, Noncurrent No definition available.
|
| X | ||||||||||
- Definition Environmental Reserve, Noncurrent No definition available.
|
| X | ||||||||||
- Definition Lease Make-good Provision No definition available.
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as current. Excludes other postretirement benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension plan, classified as noncurrent. Excludes other postretirement benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|