Other Accrued Liabilities (Components Of Other Accrued Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Accrued Liabilities [Abstract]
Accrued professional fees	$ 64	$ 63
Pension	93	93
Postretirement benefit obligation	78	103
Deferred revenue - direct to consumer	1,336	614
Other	1,653	1,041
Other accrued liabilities, Total	$ 3,224	$ 1,914