Note 9 - Warrants (Tables)

9 Months Ended

Sep. 30, 2012

Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block]

	September 30, 2012			September 30, 2011
Stock Price	$	0.74		$	1.34
Exercise Price	$	2.56		$	2.56
Expected Volatility		112	%		101	%
Expected Dividend Yield	None			None
Expected Term (in years)		4.0			5.0
Risk-free Interest Rate		0.37	%		0.38	%

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

	2012				2011
	Warrants		Weighted Average Exercise Price		Warrants			Weighted Average Exercise Price
Outstanding at January 1,		2,476,654	$	2.49		1,757,115		$	4.61
Issued						1,800,000			2.56
Expired						(50,000	)		14.56
Warrant redemption						(972,590	)		3.28
Exercised
Outstanding at September 30,		2,476,654	$	2.49		2,534,525		$	2.74
Currently exercisable		2,476,654	$	2.49		2,534,525		$	2.74

Schedule of Stockholders Equity [Table Text Block]

			Warrants Outstanding and Exercisable
Range of Exercise Prices			Warrants		Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price
$1.00	to	$2.30		676,654		3.5	$	2.30
$2.31	to	$4.00		1,800,000		4.0		2.56
				2,476,654		4.1	$	2.49