Annual report pursuant to section 13 and 15(d)

Segment Geographic Information on Sales and Net Property and Equipment (Detail)

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Segment Geographic Information on Sales and Net Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Revenue, Major Customer [Line Items]    
Revenue from External Customers $ 6,025 $ 7,230
Property and equipment, net 148 230
North America
   
Revenue, Major Customer [Line Items]    
Revenue from External Customers 60 215
Property and equipment, net 77 177
Europe
   
Revenue, Major Customer [Line Items]    
Revenue from External Customers 3,441 4,977
Property and equipment, net 15 52
Other Regions
   
Revenue, Major Customer [Line Items]    
Revenue from External Customers 2,524 2,038
Property and equipment, net $ 56 $ 1