Shareholders' Equity And Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) $ / shares shares
Shareholders' Equity and Stock-based Compensation [Abstract]
Number of Shares, Outstanding	1,324,000
Number of Shares, Options forfeited or cancelled
Number of Shares, Options expired	(60,000)
Number of Shares, Options granted	180,000
Number of Shares, Options exercised	(1,000)
Number of Shares, Outstanding	1,443,000
Number of Shares, Exercisable	1,083,000
Number of Shares, Available for future grant at December 31, 2015	490,000
Number of Shares, Available for future grant at September 30, 2016	371,000
Weighted-average Exercise Price, Outstanding | $ / shares	$ 6.36
Weighted-average Exercise Price, Options forfeited or cancelled | $ / shares
Weighted-average Exercise Price, Options expired	5.81
Weighted-average Exercise Price, Options granted | $ / shares	$ 7.08
Weighted-average Exercise Price, Options exercised | $ / shares	3.16
Weighted-average Exercise Price, Outstanding | $ / shares	6.47
Weighted-average Exercise Price, Exercisable | $ / shares	$ 6.38
Aggregate Intrinsic Value, Outstanding | $	$ 988
Aggregate Intrinsic Value, Exercisable | $	$ 933