Properties And Equipment (Schedule Of Properties And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 28,322	$ 26,850
Less accumulated depreciation	(17,012)	(15,799)
Properties and equipment, net	11,310	11,051
Depreciation expense	1,200	1,000	$ 1,100
Land [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	268	268
Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	13,032	12,867
Construction In Progress [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross		271
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Properties and equipment, gross	$ 15,022	$ 13,444