NOTE 5 - PROPERTY AND EQUIPMENT (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2020	Jan. 31, 2019
Details
Total Depreciation Expense	$ 333,339	$ 290,386	$ 901,684	$ 824,360
Depreciation in Cost of Revenue	223,228	238,102	720,560	700,618
Depreciation in General and administrative expenses	$ 110,111	$ 52,283	$ 181,124	$ 123,741