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Goodwill (Tables)
12 Months Ended
Mar. 31, 2016
Business Combination, Goodwill [Abstract]  
Schedule of Goodwill

 

Acquisitions  March 31,
   2015  2016
           
Electronic division  $393   $393 
Metallic division   317    317 
Foreign exchange differences   (1)   (1)
Impairment – electronic division   (392)   (392)
Impairment – metallic division   (317)   (317)
   $—     $—