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BUSINESS SEGMENT (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
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Sep. 30, 2012
Mar. 31, 2013
BUSINESS SEGMENT          
Number of reportable segments     1    
Segment information          
Net revenue $ 3,839 $ 3,156 $ 7,564 $ 6,440  
Long-lived assets 32,865   32,865   32,912
Europe
         
Segment information          
Net revenue 972 790 2,110 1,809  
Long-lived assets 389   389   405
United States
         
Segment information          
Net revenue 2,867 2,366 5,454 4,631  
Long-lived assets $ 32,476   $ 32,476   $ 32,507