Note 10 - Summary of Outstanding Contingent Stock Bonuses (Details)	Dec. 31, 2015 $ / shares shares
Stock Bonus Payable Upon Stock Price of $5.00 per Share [Member] | Stock Bonus [Member]
Share Price | $ / shares	$ 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 | $ / shares	$ 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 | $ / shares	$ 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	4,513,870