Note 11 -loan Payable (Details) - USD ($)	3 Months Ended	6 Months Ended
Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2016	Oct. 31, 2015
Details
Interest expense related to short-term loans	$ 56,288	$ 112,245	$ 54,078	$ 91,457

Represents the monetary amount of Interest expense related to short-term loans, during the indicated time period.

No definition available.

Name:	fil_InterestExpenseRelatedToShortTermLoans
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration