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Note 13 - Comprehensive Income (Tables)
12 Months Ended
Mar. 31, 2016
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
 
 
Foreign
Currency
Translation
 
 
AOCI
 
Balance at March 31, 2013
  $ --     $ --  
Unrealized losses arising during the year
    --       --  
Balance at March 31, 2014
    --       --  
Unrealized losses arising during the year
    (234 )     (234 )
Balance at March 31, 2015
    (234 )     (234 )
Unrealized losses arising during the year
    (917 )     (917 )
Balance at March 31, 2016
  $ (1,151 )   $ (1,151 )