Benefit Plans (Stock Option Activity) (Details) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Outstanding	236,438	203,575
Weighted Average Exercise Price	$ 15.98	$ 16.96
Issued		44,600
Issued, Weighted Average Exercise Price		$ 10.31
Forfeited	(2,605)	(2,323)
Forfeited, Weighted Average Exercise Price	$ 9.69	$ 12.95
Expired	(19,215)	(9,414)
Expired, Weighted Average Exercise Price	$ 16.83	$ 11.16
Outstanding	214,618	236,438
Weighted Average Exercise Price	$ 15.98	$ 15.98

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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.

+ References

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

+ References

No definition available.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including 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 grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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