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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2012
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | The calculations of basic and diluted earnings per share are as follows:
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
(In thousands except share and per share data) |  | 2012 |  | 2011 |  | 2012 |  | 2011
Basic |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 5,962 |  | $ | 5,739 |  | $ | 11,870 |  | $ | 11,458
Weighted-average common shares |  |  |  |  |  |  |  |  |  |  |  |
outstanding |  |  | 10,330,961 |  |  | 10,296,796 |  |  | 10,333,308 |  |  | 10,294,563
Basic earnings per share |  | $ | .58 |  | $ | .56 |  | $ | 1.15 |  | $ | 1.11
Diluted |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 5,962 |  | $ | 5,739 |  | $ | 11,870 |  | $ | 11,458
Weighted-average common shares |  |  |  |  |  |  |  |  |  |  |  |
outstanding |  |  | 10,330,961 |  |  | 10,296,796 |  |  | 10,333,308 |  |  | 10,294,563
Effect of dilutive restricted stock, stock |  |  |  |  |  |  |  |  |  |  |  |
options and stock appreciation rights |  |  | 167,057 |  |  | 142,314 |  |  | 163,345 |  |  | 140,923
Weighted-average common shares |  |  |  |  |  |  |  |  |  |  |  |
outstanding assuming dilution |  |  | 10,498,018 |  |  | 10,439,110 |  |  | 10,496,653 |  |  | 10,435,486
Diluted earnings per share |  | $ | .57 |  | $ | .55 |  | $ | 1.13 |  | $ | 1.10

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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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