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Inventories
12 Months Ended
Dec. 31, 2011
Inventories [Abstract]  
Inventories
Note 6.

Inventories

Inventories at December 31, 2011 and 2010 are summarized as follows:

   
2011
   
2010
 
   
In thousands
 
Finished goods
  $ 73,088     $ 71,634  
Work-in-process
    9,056       5,346  
Raw materials
    20,317       21,387  
Total inventories at current costs
    102,461       98,367  
Less:
                 
 
Current cost over LIFO stated values
    (10,183 )     (8,000 )
      $ 92,278     $ 90,367  

At December 31, 2011 and 2010, the LIFO carrying value of inventories for book purposes exceeded the LIFO value for tax purposes by approximately $14,636,000 and $11,973,000, respectively.  During 2011, liquidation of certain LIFO inventory layers carried at costs which were lower than the costs of current purchases.  The effect of these reductions in 2011 was to decrease cost of goods sold by $33,000.  During 2010, liquidation of LIFO layers carried at costs that were higher than current purchases resulted in an increase to cost of goods sold of $1,046,000.  During 2009, liquidation of LIFO layers carried at costs that were lower than current purchases resulted in a decrease to cost of goods sold of $34,000.