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8. Stockholders’ Equity (Tables)
 6 Months Ended
Sep. 30, 2016
Stockholders' Equity Note [Abstract]  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] A summary of the Company’s common stock warrant activity for the period from April 1, 2016 through September 30, 2016 is presented below:

 
  
Warrants Outstanding
(in thousands)
    
Weighted Average
Exercise Price
    
Aggregate Intrinsic Value
(in thousands)
  
Outstanding, April 1, 2016
    
444
    
$
6.45
    
$
7
  
Granted
    
-
      
-
          
Exercised
    
12
      
2.10
          
Expired
    
-
      
-
          
Outstanding, September 30, 2016
    
432
    
$
6.57
    
$
91
  
Schedule of Stockholders Equity [Table Text Block] As of September 30, 2016, the Company had the following outstanding warrants to purchase shares of its common stock:

   
Weighted Average
  
Warrants Outstanding
(in thousands)
  
Exercise Price
  
Remaining Life (Years)
  
 
38
    
$
2.10
      
2.02
  
 
394
    
$
7.00
      
0.53
  
 
432
    
$
6.57
      
0.66