Note 11 - Income Taxes: Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($)	12 Months Ended
	Apr. 30, 2017	Apr. 30, 2016
Details
U.S. Operations Income Loss	$ (1,826,809)	$ (1,345,518)
Chinese Operations Income Loss	(2,071,215)	(3,446,085)
Total Income Loss	$ (3,898,024)	$ (4,791,603)