Long-Term Debt (Schedule Of Future Debt Payments) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Long-Term Debt [Line Items]
2016	$ 65
2017	52
2018	904
Total long-term debt	1,021	$ 889
Bank Credit Facility [Member]
Long-Term Debt [Line Items]
2018	869
Total long-term debt	869
Company Vehicles [Member]
Long-Term Debt [Line Items]
2016	65
2017	52
2018	35
Total long-term debt	$ 152