Note 5 - Stockholders' Equity (Detail) - Stock Purchase Warrant Transactions (USD $)	9 Months Ended
	Sep. 30, 2012
Outstanding at December 31, 2011 (in Shares)	1,870,559
Outstanding at December 31, 2011	$ 7.96
Exercised (in Shares)	0
Exercised	$ 0
Forfeited or expired (in Shares)	(57,000)
Forfeited or expired	$ 7.00
Outstanding at September 30, 2012 (in Shares)	11,225,559
Outstanding at September 30, 2012	$ 2.06
Exercisable at September 30, 2012 (in Shares)	8,288,526
Exercisable at September 30, 2012	$ 2.44
Series A Warrants [Member]
Number of Shares (in Dollars)	$ 2,933,333	[1]
Weighted Average Exercise Price	$ 1.00	[1]
Series B Warrants [Member]
Number of Shares (in Dollars)	2,933,333	[1]
Weighted Average Exercise Price	$ 0.75	[1]
Series C Warrants [Member]
Number of Shares (in Dollars)	2,933,333	[1]
Weighted Average Exercise Price	$ 1.00	[1]
Other Warrants [Member]
Number of Shares (in Dollars)	$ 612,001	[2]
Weighted Average Exercise Price	$ 1.00	[2]

[1] See discussion under "Series A Convertible Preferred Stock" above.

[2] See discussion under "Common Stock" above.