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Note 4 - Property and Equipment, Net (Tables)
 3 Months Ended
Jun. 30, 2017
Notes Tables  
Property, Plant and Equipment [Table Text Block]
 
 
June 30,
 
 
March 31,
 
 
 
201
7
 
 
201
7
 
 
 
(in thousands)
 
Computers and software
   $
351
     $
360
  
Furniture and equipment
    
251
      
316
  
Leasehold improvements
    
44
      
59
  
     
646
      
735
  
Less: accumulated depreciation
    
(562
)
    
(650
)
                 
Total property and equipment, net
   $
84
     $
85