Schedule of Fair Value of Financial Instruments (Details) - USD ($)	Jan. 31, 2016	Apr. 30, 2015
Marketable securities	$ 242,266	$ 359,857
Total assets at fair value	242,266	359,857
Level 1 [Member]
Marketable securities	242,266	359,857
Total assets at fair value	242,266	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