Employee Benefits (Summary Of Activity In Stock Option Plans) (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Options
Outstanding Options, Beginning Balance	185,410	249,700	317,180
Outstanding Options, Granted	0	0	0
Outstanding Options, Exercised	(10,160)	(17,800)	0
Outstanding Options, Forfeited	(6,500)	(1,750)	(44,680)
Outstanding Options, Expired	(11,580)	(44,740)	(22,800)
Outstanding Options, Ending Balance	157,170	185,410	249,700
Weighted- Average Exercise Price (WAEP)
Outstanding, Weighted-Average Exercise Price, Beginning Balance	$ 19.59	$ 18.98	$ 18.17
Outstanding, Weighted-Average Exercise Price, Granted	$ 0.00	$ 0.00	$ 0.00
Outstanding, Weighted-Average Exercise Price, Exercised	$ 6.98	$ 5.37	$ 0.00
Outstanding, Weighted-Average Exercise Price, Forfeited	$ 24.44	$ 19.69	$ 0.00
Outstanding, Weighted-Average Exercise Price, Expired	$ 16.64	$ 21.83	$ 0.00
Outstanding, Weighted-Average Exercise Price, Ending Balance	$ 20.43	$ 19.59	$ 18.98
Exercisable Options, Ending Balance	156,170	182,810	245,500
Exercisable Options, Weighted-Average Exercise Price, Ending Balance	$ 20.54	$ 19.82	$ 19.24

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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