Note 13 - Schedule of Outstanding Warrants (Details) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Balance, Warrants (in shares)	225,000	400,000
Warrants, Balance, Weighted average Price (in dollars per share)	$ 2.13	$ 1.85
Warrant, Balance, Weighted Average Remaining Contractual Life	244 days	1 year 29 days	1 year 175 days
Expired, Warrants (in shares)	(150,000)	(175,000)
Warrants, Expired, Weighted average Price (in dollars per share)	$ (2.40)	$ (1.49)
Balance, Warrants (in shares)	75,000	225,000	400,000
Warrants, Balance, Weighted average Price (in dollars per share)	$ 1.60	$ 2.13	$ 1.85