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Inventories
3 Months Ended
Sep. 30, 2012
Inventories [Abstract]  
Inventories
(4)           Inventories

Inventories comprise the following:
 
 
       
September 30,
 
June 30,
       
2012
 
2012
Finished goods
$
47,525
 
41,550
Work in process
 
403
 
403
Raw materials
 
71,302
 
62,957
Parts and supplies
 
14,890
 
14,531
 
Total
$
134,120
 
119,441
 
At September 30, 2012, $127,279 in inventory is valued using the first-in, first-out method and $6,841 using the average cost method. At June 30, 2012, $112,418 in inventory is valued using the first-in, first-out method and $7,023 using the average cost method.