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Inventories
3 Months Ended
Mar. 31, 2012
Inventories

(2) Inventories

 

Inventories are valued at the lower of cost or market using the first-in, first-out (FIFO) method. The Company adjusts its excess and obsolescence reserve at least on a quarterly basis. Excess inventories are quantities of items that exceed anticipated sales or usage for a reasonable period. The Company has guidelines for calculating provisions for excess inventories based on the number of months of inventories on hand compared to anticipated sales or usage. Management uses its judgment to forecast sales or usage and to determine what constitutes a reasonable period. Inventory cost includes material, labor and overhead. Inventories consisted of the following:

 

 

    March 31,     December 31,  
    2012     2011  
                 
 Raw materials   $ 74,002     $ 72,308  
 Work-in-progress     15,733       14,723  
 Finished goods     30,616       33,615  
 Total inventories, net   $ 120,351     $ 120,645