NOTE 4 - INVENTORIES (Details) - USD ($)	3 Months Ended	6 Months Ended
Oct. 31, 2021	Oct. 31, 2021
Details
Obsolete inventories wrotedown	$ 465,801	$ 653,505

Represents the monetary amount of Obsolete inventories wrotedown, during the indicated time period.

No definition available.

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