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Commitments and Contingencies (Tables)
12 Months Ended
Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of future minimum rental payments under operating lease

Fiscal Year Ending March 31

   (In thousands)  

2019

   $ 1,984  

2020

     1,160  

2021

     303  

2022

     44  

2023

     11  
  

 

 

 
   $ 3,502