Shareholders' Equity And Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) - Jun. 30, 2015 - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	Total
Shareholders' Equity and Stock-Based Compensation [Abstract]
Number of Shares, Outstanding at December 31, 2014	1,313
Number of Shares, Options forfeited or cancelled
Number of Shares, Options expired
Number of Shares, Options granted	170
Number of Shares, Options exercised	(18)
Number of Shares, Outstanding at June 30, 2015	1,465
Number of Shares, Exercisable at June 30, 2015	1,117
Number of Shares, Available for future grant at December 31, 2014	175
Number of Shares, Available for future grant at June 30, 2015	460
Weighted-average Exercise Price, Outstanding at December 31, 2014	$ 5.86
Weighted-average Exercise Price, Options forfeited or cancelled
Weighted-average Exercise Price, Options expired
Weighted-average Exercise Price, Options granted	$ 7.14
Weighted-average Exercise Price, Options exercised	3.12
Weighted-average Exercise Price, Outstanding at June 30, 2015	6.05
Weighted-average Exercise Price, Exercisable at June 30, 2015	$ 6.08
Aggregate Intrinsic Value, Outstanding at June 30, 2015	$ 2,442
Aggregate Intrinsic Value, Exercisable at June 30, 2015	$ 2,886