NOTE 6 - PROPERTY AND EQUIPMENT (Details) - USD ($)	3 Months Ended	9 Months Ended
Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Details
Total Depreciation Expense	$ 368,663	$ 349,535	$ 1,073,856	$ 976,095
Depreciation in Cost of Revenue	$ 317,272	$ 301,655	$ 916,444	$ 882,668

Represents the monetary amount of Depreciation in Cost of Revenue, during the indicated time period.

No definition available.

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