Earnings Per Share (Reconciliations And Calculations Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended			36 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income	$ 12,125	$ 15,131	$ 15,194
Weighted average common shares outstanding	6,326,000	6,303,000	6,259,000
Dilutive effect of common stock equivalents	18,000	13,000	12,000
Weighted average common and common equivalent shares outstanding	6,344,000	6,316,000	6,271,000
Basic earnings per common share	$ 1.92	$ 2.40	$ 2.43
Diluted earnings per common share	$ 1.91	$ 2.40	$ 2.42
Average stock options outstanding which were not included in the calculation of diluted earnings per share				0