Note 2 - Debt (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Total convertible debentures	$ 0	$ 11,144,000
Less: discount	0	(794,000)
Total convertible debentures, net of discount	0	10,350,000
Total short term convertible debentures, net of discount	0	10,350,000
Convertible Debt 1
Total convertible debentures	0	305,000
Convertible Debt 2
Total convertible debentures	0	64,000
Convertible Debt 3
Total convertible debentures	0	125,000
Convertible Debt 4
Total convertible debentures	0	140,000
Convertible Debt 5
Total convertible debentures	0	225,000
Convertible Debt 6
Total convertible debentures	0	425,000
Convertible Debt 7
Total convertible debentures	0	172,000
Convertible Debt 8
Total convertible debentures	0	3,140,000
Convertible Debt 9
Total convertible debentures	0	1,250,000
Convertible Debt 10
Total convertible debentures	0	2,175,000
Convertible Debt 11
Total convertible debentures	0	500,000
Convertible Debt 12
Total convertible debentures	0	330,000
Convertible Debt 13
Total convertible debentures	0	190,000
Convertible Debt 14
Total convertible debentures	0	200,000
Convertible Debt 15
Total convertible debentures	0	150,000
Convertible Debt 16
Total convertible debentures	0	1,503,000
Convertible Debt 17
Total convertible debentures	0	250,000
Convertible Debt 18
Total convertible debentures	0	0
Convertible Debt 19
Total convertible debentures	0	0
Convertible Debt 20
Total convertible debentures	0	0
Convertible Debt 21
Total convertible debentures	0	0
Convertible Debt 22
Total convertible debentures	$ 0	$ 0