Stock-Based Compensation (Summary Of Information Regarding Stock Option Plans) (Details) (USD $)	9 Months Ended
Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding, beginning of year, Number of Shares,	55,751
Options expired, Number of Shares	(12,729)
Options outstanding, end of quarter, Number of Shares	43,022
Options exercisable, end of quarter, Number of Shares	43,022
Options outstanding, beginning of year, Weighted Average Exercise Price per Share,	$ 12.48
Options expired, Weighted Average Exercise Price per Share	$ 10.59
Options outstanding, end of quarter, Weighted Average Exercise Price per Share	$ 13.04
Options exercisable, end of quarter, Weighted Average Exercise Price per Share	$ 13.04
Options outstanding, end of quarter, Weighted Average Contractual Term	9 months 4 days
Options exercisable, end of quarter, Weighted Average Contractual Term	9 months 4 days
Options outstanding, end of quarter, Aggregate Intrinsic Value
Options exercisable, end of quarter, Aggregate Intrinsic Value
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option price range at end of quarter	$ 8.99
Option price range for exercisable shares	$ 8.99
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option price range at end of quarter	$ 16.45
Option price range for exercisable shares	$ 16.45

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

+ References

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- Definition

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.

+ References

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)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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.

+ References

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

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

+ References

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)(iv)(4)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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-Publisher FASB

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-Topic 718

-SubTopic 10

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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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-Publisher FASB

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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 exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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