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Consolidated Statements of Shareholders' Equity (Parentheticals) (USD $)
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12 Months Ended | ||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Dividends per share (in dollars per share) | $ 0.28 | $ 0.28 | $ 0.28 |
| X | ||||||||||
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- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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