Note 12 - Segment Reporting (Details) - Summary of Valuation and Qualifying Accounts - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Allowance for doubtful accounts, excluding provision for credit notes
Balance at beginning of period	$ 125,766	$ 91,226
Charged to (recovered) costs and expenses	2,813	(34,540)
Balance at end period	$ 122,953	$ 125,766