Schedule of Fair Value of Financial Instruments (Details) - USD ($)	Apr. 30, 2016	Apr. 30, 2015
Marketable securities	$ 255,824	$ 359,857
Total assets at fair value	255,824	359,857
Level 1 [Member]
Marketable securities	255,824	359,857
Total assets at fair value	255,824	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