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Net Income per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Earnings Per Share [Abstract] |
Computation of basic and diluted net income per common share | The computation of basic and diluted net income per common share is as follows:
| December 31,
| 2012 |  | 2011
Net income | $ | 8,190,000 |  |  | $ | 10,526,000 |
Weighted average common shares outstanding — basic | 7,104,000 |  |  | 6,954,000 |
Effect of dilutive securities | 275,000 |  |  | 346,000 |
Weighted average common and potentially issuable common shares outstanding — diluted | 7,379,000 |  |  | 7,300,000 |
Basic net income per common share | $ | 1.15 |  |  | $ | 1.51 |
Diluted net income per common share | $ | 1.11 |  |  | $ | 1.44 |

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to 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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