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Note 5 - Other Assets
3 Months Ended
Jun. 30, 2015
Notes to Financial Statements  
Other Assets Disclosure [Text Block]
5. Other Assets
 
Other assets consist of the following (in thousands):
 
 
 
June 30,
 
 
March 31,
 
 
 
2015
 
 
2015
 
 
 
(unaudited)
 
Marketable equity securities
  $ 1,545     $ 1,737  
Auction rate preferred securities
    350       350  
Long-term equity investments
    11,042       11,041  
Other items
    734       576  
Total
  $ 13,671     $ 13,704