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Note 12 - Subsequent Events	3 Months Ended
Note 12 - Subsequent Events	Jul. 31, 2019
Notes to Financial Statements
Subsequent Events [Text Block]	12. Subsequent Events: The Company evaluated its July 31, 2019 financial statements for subsequent events through the filing date of this report. The Company is not aware of any subsequent events that would require recognition or disclosure in the financial statements.