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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Statement Of Financial Position [Abstract]    
Common stock, no par value $ 0 $ 0
Common stock, shares authorized 6,500,000 6,500,000
Common stock, shares issued 5,200,000 5,200,000
Common stock, shares outstanding 5,200,000 5,200,000
Treasury Stock, shares 539,062 510,742
Unearned Stock Awards, shares 32,040 30,670