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Inventories
3 Months Ended
Mar. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
Inventories
 
Inventories valued at LIFO cost represented 58% and 56% of total inventory at March 31, 2013 and December 31, 2012, respectively.  The excess of current cost over LIFO valued inventories was $8,975,000 at March 31, 2013 and December 31, 2012.  Inventory obsolescence reserves were $8,663,000 at March 31, 2013 and $9,099,000 at December 31, 2012.  The decrease in reserve for obsolescence resulted from the Company's quarterly review in the normal course of business.  Net inventories consist of the following:
 
 
(in thousands)
March 31,
2013
December 31,
2012
 
 
 
 
 
 
 
Finished goods
 
$
94,225

 
 
$
93,095

 
Work in process
 
9,234

 
 
7,922

 
Raw materials
 
14,765

 
 
7,741

 
 
 
$
118,224

 
 
$
108,758

 

 
An actual valuation of inventory under the LIFO method can be made only at the end of each year based on the inventory levels and costs at that time.  Accordingly, interim LIFO must necessarily be based, to some extent, on management's estimates at each quarter end.