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Net Income per Common Share (Tables) | 9 Months Ended
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Sep. 30, 2013
Earnings Per Share [Abstract] |
Schedule of reconciliation of basic and diluted weighted average common shares outstanding | A reconciliation of the basic and diluted weighted average common shares outstanding is as follows:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
| 2013 |  | 2012 |  | 2013 |  | 2012
Weighted average common shares outstanding—basic | 15,199,802 |  |  | 14,846,249 |  |  | 15,109,311 |  |  | 14,742,855 |
Dilutive common shares issuable in connection with stock plans | 154,657 |  |  | 177,331 |  |  | 190,807 |  |  | 228,812 |
Weighted average common shares outstanding—diluted | 15,354,459 |  |  | 15,023,580 |  |  | 15,300,118 |  |  | 14,971,667 |

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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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