| Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
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For the Years Ended December 31:
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2013
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2012
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2011
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Allocation of earnings:
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Net income
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$
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30,515
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$
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4,063
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$
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34,157
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Income allocated to participating securities
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(687
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)
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(49
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)
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(30
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)
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Income allocated to common shares outstanding
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$
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29,828
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$
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4,014
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$
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34,127
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Weighted average common shares outstanding
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19,913
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19,420
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19,238
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Basic earnings per share
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1.50
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0.21
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1.77
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Stock options assumed exercised
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721
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454
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685
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Weighted average diluted common shares and potential common share equivalents outstanding
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20,634
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19,874
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19,923
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Diluted earnings per share
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1.45
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0.20
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1.71
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