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Inventories, Net
3 Months Ended
Jun. 30, 2011
Notes To Financial Statements [Abstract]  
Inventories, Net
Inventories, Net


Inventories, net are stated at the lower of cost or market. We use the last-in, first-out (“LIFO”) and first-in, first-out cost methods. An actual valuation of inventory under the LIFO method is made only at the end of the fiscal year based on the inventory levels and costs at that time. Accordingly, interim LIFO calculations are based on management’s estimates of expected year-end inventory levels and are subject to the final fiscal year-end LIFO inventory valuation. Inventory costs include material, labor, and overhead. Inventories, net consisted of the following:
 
 
 
June 30,

2011
 
March 31,

2011
Raw materials
 
$
64,062


 
$
58,375


Work in process
 
25,086


 
16,928


Finished goods
 
105,900


 
92,041


Inventories, net
 
$
195,048


 
$
167,344