Schedule of Fair Value of Financial Instruments (Details) - USD ($)	Jul. 31, 2015	Apr. 30, 2015
Marketable securities	$ 257,811	$ 359,857
Total assets at fair value	257,811	359,857
Level 1 [Member]
Marketable securities	257,811	359,857
Total assets at fair value	257,811	359,857
Level 2 [Member]
Marketable securities	0	0
Total assets at fair value	0	0
Level 3 [Member]
Marketable securities	0	0
Total assets at fair value	$ 0	$ 0