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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
CURRENT ASSETS:    
Accounts receivable, allowances for discounts and doubtful accounts $ 6,124 $ 6,709
Stockholders' equity:    
Common stock, par value (in dollars per share) $ 2.00 $ 2.00
Common stock, shares authorized (in shares) 30,000,000 30,000,000
Common stock, shares issued (in shares) 23,936,036 23,936,036
Treasury stock - at cost (in shares) 1,117,104 1,116,155