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Note 6 - Debt (Tables)
3 Months Ended
Jul. 31, 2015
Notes Tables  
Schedule of Debt [Table Text Block]
 
 
July 31, 2015
 
 
April 30, 2015
 
                 
Total debt
  $ 125,000     $ 150,000  
Current portion of long-term debt
    (100,000 )     (100,000 )
Long-term debt
  $ 25,000     $ 50,000