Note 12 - Commitments and Contingencies (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) ft²	Dec. 31, 2014 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Area of Real Estate Property (in Square Feet) | ft²	1,800
Operating Leases, Rent Expense, Monthly Amount	$ 1,045
Operating Leases, Rent Expense	$ 13,585	$ 11,675
Number of Ongoing Studies	0
Obligations to Pay Third Parties, Clinical Studies Expense	$ 0
Loss Contingency, Pending Claims, Number	0