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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Consolidated Statements of Stockholders' Equity [Abstract]    
Redemption of preferred stock   9,750
Restricted stock compensation, shares 18,079  
Exercise of stock options, net of tax and exercise price   14,696
Cash Dividends-Common Stock per share $ 0.07 $ 0.07
Sale of treasury shares to 401(k), Shares 2,040 2,926
Sale of treasury shares to deferred compensation plan, Shares 1,014 1,474