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Accrued Liabilities
6 Months Ended
Jun. 30, 2011
Accrued Liabilities [Abstract]  
ACCRUED LIABILITIES
NOTE 3 — ACCRUED LIABILITIES
Accrued liabilities consist of the following:
                 
    June 30,     December 31,  
In Thousands of Dollars   2011     2010  
 
Sales volume discounts payable
  $ 15,397     $ 14,997  
Property taxes payable
    1,363       2,648  
Commissions payable
    2,638       2,290  
Accrued salaries
    1,891       2,591  
Other accrued liabilities
    680       665  
 
       
 
  $ 21,969     $ 23,191