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Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)
9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Consolidated Statements of Stockholders' Equity [Abstract]    
Exercise of stock options, shares 4,807  
Cash Dividends-Common Stock per share $ 0.21 $ 0.21
Sale of treasury shares to 401(k), Shares 9,071 10,663
Sale of treasury shares to deferred compensation plan, Shares 4,565 5,320