Accounting For Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012
Accounting For Stock-Based Compensation [Abstract]
Options Outstanding, Outstanding, Beginning of period	515,987
Options Outstanding, Granted	182,916
Options Outstanding, Exercised	(5,625)
Options Outstanding, Expired	(143,188)
Options Outstanding, Forfeited	(5,937)
Options Outstanding, Outstanding, End of period	544,153
Options Outstanding, Exercisable, End of period	300,029
Weighted-Average Exercise Price Per Share, Outstanding, Beginning of period	$ 10.07
Weighted-Average Exercise Price Per Share, Granted	$ 7.38
Weighted-Average Exercise Price Per Share, Exercised	$ 4.99
Weighted-Average Exercise Price Per Share, Expired	$ 12.21
Weighted-Average Exercise Price Per Share, Forfeited	$ 7.54
Weighted-Average Exercise Price Per Share, Outstanding, End of period	$ 8.68
Weighted-Average Exercise Price Per Share, Exercisable, End of period	$ 9.44