Note 2 - Summary of Significant Accounting Policies (Details) - Allowance for Doubtful Account Summary - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Allowance for Doubtful Account Summary [Abstract]
Beginning of period	$ 116,834	$ 186,085	$ 186,085
Bad debt expense	(148)	$ (20,374)	14,939
Write-offs	(24,548)		(84,190)
End of period	$ 92,138		$ 116,834