Note 12 - Summary of Outstanding Contingent Stock Bonuses (Details) - $ / shares	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Stock Bonus Payable Upon Stock Price of $5.00 per Share [Member] | Stock Bonus [Member]
Share Price	$ 5
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	50,000
Stock Bonus Payable Upon Stock Price of $10.00 per Share [Member] | Stock Bonus [Member]
Share Price	$ 10
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	40,000
Stock Bonus Payable Upon Stock Price of $20.00 per Share [Member] | Stock Bonus [Member]
Share Price	$ 20
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	27,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	4,225,537	4,413,870	4,258,870