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Property, Plant and Equipment (Tables)
3 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment consisted of the following:
 
 
June 30, 2012
 
 
March 31, 2012
 
Gross property, plant and equipment
 
$
1,068,581
 
 
$
1,092,703
 
Less accumulated depreciation
 
 
(674,022
)
 
 
(680,644
)
Net property, plant and equipment
 
$
394,559
 
 
$
412,059