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Nature of Banking Activities and Significant Accounting Policies (Weighted Average Number of Shares Used In Computing Earnings Per Share) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Average number of common shares outstanding (in shares)	3,438,348us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	3,386,467us-gaap_WeightedAverageNumberOfSharesOutstandingBasic	3,333,235us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of dilutive common stock (in shares)	8,470us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	11,275us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment	10,037us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment
Average number of common shares outstanding used to calculate diluted earnings per share (in shares)	3,446,818us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	3,397,742us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding	3,343,272us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding

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- Definition

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

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257



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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.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 10

-URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1448-109256



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