Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Shareholders' Equity (Parentheticals)

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Consolidated Statements of Shareholders' Equity (Parentheticals) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dividends per share (in dollars per share) $ 0.28 $ 0.28 $ 0.28