Assets Held For Sale (Summary Of Assets Held For Sale) (Details) $ in Thousands	Mar. 31, 2025 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Cost	$ 3,006
Accumulated Depreciation	(2,640)
Net Book Value	366
Buildings & Building Improvements [Member] | Huntingburg, Indiana [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Long Lived Assets Held-for-sale [Line Items]
Cost	2,981
Accumulated Depreciation	(2,615)
Net Book Value	366
Land & Land Improvements [Member] | Huntingburg, Indiana [Member] | Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Long Lived Assets Held-for-sale [Line Items]
Cost	25
Accumulated Depreciation	$ (25)