Quarterly report pursuant to sections 13 or 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
3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Revenue, Major Customer [Line Items]      
Revenue from External Customers $ 1,290 $ 1,893  
Property and equipment, net 201   230
North America
     
Revenue, Major Customer [Line Items]      
Revenue from External Customers 3 57  
Property and equipment, net 155   177
Europe
     
Revenue, Major Customer [Line Items]      
Revenue from External Customers 799 1,519  
Property and equipment, net 45   52
Other Regions
     
Revenue, Major Customer [Line Items]      
Revenue from External Customers 488 317  
Property and equipment, net $ 1   $ 1