XML 30 R30.htm IDEA: XBRL DOCUMENT v2.4.0.6
Property, Plant and Equipment (Tables)
6 Months Ended
Sep. 30, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Property, plant and equipment consisted of the following:

   
September 30, 2012
  
March 31, 2012
 
Gross property, plant and equipment
 $1,034,224  $1,092,703 
Accumulated depreciation
  (662,147)  (680,644)
Net property, plant and equipment
 $372,077  $412,059