Note 6 - Share-based Compensation (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Prepaid expenses and other current assets	$ 117,770	$ 172,939
Director
Stock Issued During Period, Shares, Issued for Services	30,000
Issue price	$ 4.00
Stock Issued During Period, Value, Issued for Services	$ 240,000
Allocated Share-based Compensation Expense	60,000
Prepaid expenses and other current assets	$ 60,000