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Note 6 - Other Assets
3 Months Ended
Jun. 30, 2016
Notes to Financial Statements  
Other Assets Disclosure [Text Block]
6. Other Assets
 
Other assets consist of the following (in thousands):
 
 
 
June 30,
 
 
March 31,
 
 
 
2016
 
 
2016
 
 
 
(unaudited)
 
Marketable equity securities
  $ 1,879     $ 1,749  
Auction rate preferred securities
    350       350  
Long-term equity method investments
    11,250       10,977  
Other items
    692       686  
Total
  $ 14,171     $ 13,762