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Financial Risk Management and Derivatives (Tables)
12 Months Ended
Mar. 31, 2017
Financial Risk Management and Derivatives [Abstract]  
Schedule of derivative instruments on consolidated statements of income
The following shows the effect of the Company’s derivative instruments on its consolidated statements of income:
 
  
Gain (Loss) Recognized within General and Administrative Expenses
 
Derivatives Not Designated as
 
Years Ended March 31,
 
Hedging Instruments
 
2017
  
2016
  
2015
 
          
Forward foreign currency exchange contracts
 
$
843,000
  
$
777,000
  
$
(1,034,000
)