Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Unrecognized tax benefits — January 1	$ 442	$ 253	$ 471
Gross increases — current period tax positions		270	42
Gross decreases — expirations		(65)	(201)
Gross decreases — tax positions in prior period	(285)	(16)	(59)
Unrecognized tax benefits — December 31,	$ 157	$ 442	$ 253