Note 12 - Stockholders' (Deficit) - Warrants Activity (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Balance (in shares)	22,900,000	48,463,517
Issued (in shares)	4,970,000	3,800,000
Exercised (in shares)	0	0
Cancelled (in shares)		(29,363,517)
Expired/forfeited (in shares)	(10,000)	0
Balance (in shares)	27,860,000	22,900,000
Warrants exercisable at June 30, 2016 (in shares)	27,860,000	22,900,000
Weighted average fair value of warrants granted during 2016	$ 0.15