Shareholders' Equity And Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Shareholders' Equity And Stock-Based Compensation [Abstract]
Number of Shares, Outstanding	1,407,000
Number of Shares, Options forfeited or cancelled	(37,000)
Number of Shares, Options expired	(20,000)
Number of Shares, Options granted	137,000
Number of Shares, Options exercised	(175,000)
Number of Shares, Outstanding	1,312,000
Number of Shares, Exercisable	1,016,000
Number of Shares, Available for future grant at December 31, 2013	182,000
Number of Shares, Available for future grant at June 30, 2014	200,000
Weighted-average Exercise Price, Outstanding	$ 5.75
Weighted-average Exercise Price, Options forfeited or cancelled	$ 4.49
Weighted-average Exercise Price, Options expired	14.70
Weighted-average Exercise Price, Options granted	$ 4.76
Weighted-average Exercise Price, Options exercised	$ 3.91
Weighted-average Exercise Price, Outstanding	$ 5.80
Weighted-average Exercise Price, Exercisable	$ 6.08
Aggregate Intrinsic Value, Outstanding at June 30, 2014	$ 4,457
Aggregate Intrinsic Value, Exercisable	$ 3,348