Note 4 - Contingent Liabilities (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jul. 31, 2013	Oct. 31, 2015	Apr. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Loss Contingency, Damages Awarded, Value	$ 37,574
Loss Contingency Accrual, Period Increase (Decrease)		$ 6,543
Loss Contingency Accrual		$ 47,260	$ 48,960