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Earnings Per Common Share (Weighted Average Number Of Shares Used In Computing Earnings Per Share) (Details)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Common Share [Abstract]
Average number of common shares outstanding	3,367,689	3,316,005
Effect of dilutive common stock	10,680	8,751
Average number of common shares outstanding used to calculate diluted earnings per share	3,378,369	3,324,756

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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