Shareholders' Equity And Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2013
Shareholders' Equity And Stock-Based Compensation [Abstract]
Number of Shares, Outstanding at December 31, 2012	1,244
Number of Shares, Options granted	192
Number of Shares, Options exercised	(2)
Number of Shares, Outstanding at June 30, 2013	1,434
Number of Shares, Exercisable at June 30, 2013	1,063
Number of Shares, Available for future grant at December 31, 2012	359
Number of Shares, Available for future grant at June 30, 2013	167
Weighted-average Exercise Price, Outstanding at December 31, 2012	$ 5.97
Weighted-average Exercise Price, Options granted	$ 4.06
Weighted-average Exercise Price, Options exercised	$ 2.41
Weighted-average Exercise Price, Outstanding at June 30, 2013	$ 5.72
Weighted-average Exercise Price, Exercisable at June 30, 2013	$ 6.02
Aggregate Intrinsic Value, Outstanding at June 30, 2013	$ 251
Aggregate Intrinsic Value, Exercisable at June 30, 2013	$ 251