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Inventories
3 Months Ended
Mar. 31, 2013
Inventory Disclosure [Abstract]  
Inventory Disclosure [Text Block]

(2) Inventories

 

Inventories are valued at the lower of cost (using either the first-in, first-out (“FIFO”) or average cost methods) or market. The Company evaluates and adjusts as necessary its excess and obsolescence reserve at a minimum 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 consist of the following:

 

    March 31,     December 31,  
    2013     2012  
             
Raw materials   $ 66,641     $ 64,340  
Work-in-progress     16,752       13,621  
Finished goods     19,722       18,071  
Total inventories, net   $ 103,115     $ 96,032  

 

Inventory valued using the FIFO method was $61,284 and $57,004 at March 31, 2013 and December 31, 2012, respectively. Inventory valued using the average cost method was $41,831 and $39,028 at March 31, 2013 and December 31, 2012, respectively.