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Computation of Earnings Per Share (Schedule of Earnings Per Share) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
12 Months Ended | |||||||
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Computation of earnings per share | ||||||||
| Average number of common shares outstanding for basic calculation | 7,694,392 | 7,604,303 | 7,572,841 | |||||
| Average potential effect of shares in the Directors Plan | 168,948 | [1] | 195,063 | [1] | 194,634 | [1] | ||
| Average number of common shares outstanding used to calculate diluted earnings per common share | 7,863,340 | 7,799,366 | 7,767,475 | |||||
| Net income | $ 12,510 | $ 12,206 | $ 10,210 | |||||
| Earnings per share | ||||||||
| Basic | $ 1.63 | $ 1.61 | $ 1.35 | |||||
| Diluted | $ 1.59 | $ 1.56 | $ 1.31 | |||||
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