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Earnings Per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2012
Earnings Per Common Share [Abstract] |
Weighted Average Number Of Shares Used In Computing Earnings Per Share |
| Three Months Ended | Nine Months Ended
| September 30, | September 30,
| 2012 | 2011 | 2012 | 2011
Average number of common shares outstanding | 3,341,050 | 3,302,082 | 3,328,065 | 3,287,943
Effect of dilutive common stock | 11,287 | 9,390 | 9,643 | 7,953
Average number of common shares outstanding |  |  |  |
used to calculate diluted earnings per share | 3,352,337 | 3,311,472 | 3,337,708 | 3,295,896

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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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