Note 10 - Shareholders Equity (Detail) - Warrants Outstanding and Exercisable	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Exercise Price (in Dollars per Item)	0.76	1.43	1.42	1.24
Number of Shares Outstanding	13,056,378	3,256,378	3,291,378	4,437,639
Number of Shares Exercisable	12,856,378
Warrants Outstanding [Member] | Exercise Price $0.01 [Member]
Weighted Average Remaining Contactual Life	2 years 255 days
Warrants Outstanding [Member] | Exercise Price $0.49 [Member]
Weighted Average Remaining Contactual Life	2 years
Warrants Outstanding [Member] | Exercise Price $0.54 [Member]
Weighted Average Remaining Contactual Life	2 years 73 days
Warrants Outstanding [Member] | Exercise Price $1.20 [Member]
Weighted Average Remaining Contactual Life	2 years 73 days
Warrants Outstanding [Member] | Exercise Price $1.97 [Member]
Weighted Average Remaining Contactual Life	73 days
Warrants Outstanding [Member]
Weighted Average Remaining Contactual Life	3 years 146 days
Warrants Exercisable [Member] | Exercise Price $0.01 [Member]
Weighted Average Remaining Contactual Life	2 years 255 days
Warrants Exercisable [Member] | Exercise Price $0.49 [Member]
Weighted Average Remaining Contactual Life	2 years
Warrants Exercisable [Member] | Exercise Price $0.54 [Member]
Weighted Average Remaining Contactual Life	2 years 73 days
Warrants Exercisable [Member] | Exercise Price $1.20 [Member]
Weighted Average Remaining Contactual Life	2 years 73 days
Warrants Exercisable [Member] | Exercise Price $1.97 [Member]
Weighted Average Remaining Contactual Life	73 days
Warrants Exercisable [Member]
Weighted Average Remaining Contactual Life	3 years 146 days
Exercise Price $0.01 [Member]
Exercise Price (in Dollars per Item)	0.01
Number of Shares Outstanding	300,000
Number of Shares Exercisable	300,000
Exercise Price $0.49 [Member]
Exercise Price (in Dollars per Item)	0.49
Number of Shares Outstanding	600,000
Number of Shares Exercisable	400,000
Exercise Price $0.54 [Member]
Exercise Price (in Dollars per Item)	0.54
Number of Shares Outstanding	9,800,000
Number of Shares Exercisable	9,800,000
Exercise Price $1.20 [Member]
Exercise Price (in Dollars per Item)	1.20
Number of Shares Outstanding	350,000
Number of Shares Exercisable	350,000
Exercise Price $1.97 [Member]
Exercise Price (in Dollars per Item)	1.97
Number of Shares Outstanding	2,006,378
Number of Shares Exercisable	2,006,378