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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
9 Months Ended
Jan. 31, 2015
Schedule of Fair Value of Financial Instruments [Table Text Block]
    January 31, 2015     April 30, 2014  
    Level 1     Level 2     Level 3     Total     Level 1     Level 2     Level 3     Total  
                                                 
Marketable securities $ 352,775   $ — $       $ 352,775   $   $ — $       $  
Total assets at fair value $ 352,775   $ — $       $ 352,775   $   $ — $       $