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Earnings Per Share (Reconciliation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income	$ 4,311	$ 3,873	$ 8,717	$ 7,754
Weighted average common shares outstanding
Basic	6,021,316	5,973,758	6,015,257	5,963,704
Effect of dilutive employee stock options	64,985	90,655	68,110	86,418
Diluted	6,086,301	6,064,413	6,083,367	6,050,122
Anti-dilutive options excluded from earnings per share calculation	75,763	10,950	80,263	11,197
Per Common Share Data:
Basic earnings per share	$ 0.72	$ 0.65	$ 1.45	$ 1.30
Diluted earnings per share	$ 0.71	$ 0.64	$ 1.43	$ 1.28

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Per Common Share Data [Abstract]

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Weighted Average Common Shares Outstanding [Abstract]

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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