Note 9 - Warrants

6 Months Ended

Jun. 30, 2013

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

Note 9.  Warrants

Warrants Issued to Investors

The fair value of the warrants was determined using the Monte Carlo Simulation model and the following weighted average assumptions were used:

	June 30, 2013			June 30, 2012
Stock Price	$	2.22		$	3.12
Exercise Price	$	14.93		$	14.93
Expected Volatility		76	%		110	%
Expected Dividend Yield	None			None
Expected Term (in years)		2.9			3.9
Risk-free Interest Rate		0.66	%		0.39	%

As of June 30, 2013, the value of the warrant liabilities was $100,000 and the change in fair value during the first six months of 2013 was a loss of $10,000. The loss was recorded as other expense in the statement of operations.

Warrant activity for the six months ended June 30, 2013 and 2012 is summarized as follows:

	2013				2012
			Weighted				Weighted
			Average				Average
			Exercise				Exercise
	Warrants		Price		Warrants		Price
Outstanding at January 1,		412,776	$	14.93		412,776	$	14.93
Issued
Expired
Warrant redemption
Exercised
Outstanding at June 30,		412,776	$	14.93		412,776	$	14.93
Currently exercisable		412,776	$	14.93		412,776	$	14.93

The following table summarizes information about warrants outstanding at June 30, 2013:

Warrants Outstanding and Exercisable
						Weighted
						Average		Weighted
						Remaining		Average
Range of						Contractual		Exercise
Exercise Prices				Warrants		Life (Years)		Price
$	13.80				112,776		2.9	$	13.80
$	13.86	to	$24.00		300,000		3.0		15.36
					412,776		2.9	$	14.93

 The warrants expire on various dates ranging to September 2016.