Note 5 - Commitments and Contingencies (Details) - USD ($)	3 Months Ended
Jul. 31, 2018	Jul. 31, 2017
Details
Operating Leases, Rent Expense	$ 5,100	$ 3,694

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

No definition available.

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration