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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | There were no anti-dilutive shares in the three months ended March 31, 2013 and 2012. The calculations of basic and diluted earnings per share are as follows:
|  | Three Months Ended
|  | March 31,
(In thousands except share and per share data) |  | 2013 |  | 2012
Basic |  |  |  |  |  |
Net income |  | $ | 6,032 |  | $ | 5,908
Weighted-average common shares outstanding |  |  | 11,422,028 |  |  | 11,369,221
Basic earnings per share |  | $ | .53 |  | $ | .52
Diluted |  |  |  |  |  |
Net income |  | $ | 6,032 |  | $ | 5,908
Weighted-average common shares outstanding |  |  | 11,422,028 |  |  | 11,369,221
Effect of dilutive restricted stock, stock options and stock appreciation |  |  |  |  |  |
rights |  |  | 174,866 |  |  | 175,597
Weighted-average common shares outstanding assuming dilution |  |  | 11,596,894 |  |  | 11,544,818
Diluted earnings per share |  | $ | .52 |  | $ | .51

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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