Note 2 - Summary of Significant Accounting Policies: Accounts Receivable (Details) - USD ($)	9 Months Ended
Jan. 31, 2018	Jan. 31, 2017	Apr. 30, 2017
Details
Allowance for Doubtful Accounts Receivable	$ 1,111,599		$ 1,182,632
Recovery of bad debt reserve	$ 216,910
Bad debt expenses		$ 55,145

Represents the monetary amount of Allowance for Doubtful Accounts Receivable, as of the indicated date.

No definition available.

Name:	fil_AllowanceForDoubtfulAccountsReceivable1
Namespace Prefix:	fil_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant