Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details)
 12 Months Ended
Mar. 31, 2012
Y
Buildings [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life 40
Building improvements [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life minimum 5
Property, plant and equipment useful life maximum 10
Manufacturing machinery [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life 20
General equipment [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life minimum 5
Property, plant and equipment useful life maximum 10
Computer equipment, software, and software development [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life minimum 3
Property, plant and equipment useful life maximum 7
Office furniture and equipment [Member]
  
Property, plant and equipment estimated useful lives  
Property, plant and equipment useful life minimum 3
Property, plant and equipment useful life maximum 10