Shareholders' Equity (Summary Of Stock Option Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Number of Shares, outstanding - beginning of year	398,893	535,333	463,433
Number of Shares, Granted	86,000	159,750	156,000
Number of Shares, Exercised	(2,333)	(56,000)	(32,100)
Number of Shares, Expired	(4,000)	(16,000)	(12,000)
Number of Shares, Forfeited	(138,810)	(224,190)	(40,000)
Number of Shares, outstanding - end of period	339,750	398,893	535,333
Number of Shares, exercisable - end of period	130,688	160,143	249,333
Weighted Average Exercise Price per Share, outstanding - beginning of year	$ 7.95	$ 9.58	$ 9.11
Weighted Average Exercise Price per Share, Granted	$ 6.82	$ 5.12	$ 10.21
Weighted Average Exercise Price per Share, Exercised	$ 3.65	$ 2.17	$ 3.29
Weighted Average Exercise Price per Share, expired	$ 9.00	$ 15.00	$ 15.70
Weighted Average Exercise Price per Share, Forfeited	$ 10.28	$ 10.74	$ 9.79
Weighted Average Exercise Price per Share, outstanding - end of period	$ 6.73	$ 7.95	$ 9.58
Weighted Average Exercise Price per Share, exercisable - end of period	$ 7.71	$ 9.84	$ 8.81