Note 4 - Earnings (Loss) Per Share (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Weighted Average Number of Shares Outstanding, Basic (in Shares)	86,522,332	86,345,605
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in Shares)	82,069,096	97,669,227
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit	$ 0.045
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit	$ 0.69
Lower Range Limit [Member]
Investment Warrants, Exercise Price (in Dollars per share)	$ 0.25
Upper Range Limit [Member]
Investment Warrants, Exercise Price (in Dollars per share)	$ 0.60
Lower Range Limit [Member]
Debt Instrument, Convertible, Conversion Price (in Dollars per share)	$ 0.25
Upper Range Limit [Member]
Debt Instrument, Convertible, Conversion Price (in Dollars per share)	$ 0.50