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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Stock-Based Compensation [Abstract]

Summary of the combined activity under all of the stock option plans

		Number of Options Outstanding				Weighted Average Exercise Price
Outstanding at January 1, 2012			19,324			$	92.19
Granted			1,505,000				4.29
Cancelled or expired			(8,124	)			69.36
Exercised			---				---
Outstanding at September 30, 2012			1,516,200			$	5.06

Summary of assumptions used to value stock options granted to employees and directors

		For the Nine
		Months Ended September 30, 2012

Annual dividend yield			--
Expected life (years)			3.85
Risk-free interest rate			0.43% - 0.58%
Expected volatility			177% - 186%

Stock based compensation expense related to stock options and warrants

		Three months ended September 30, 2011				Three months ended September 30, 2012
Stock-based compensation		$	45			$	606

		Nine months ended September 30, 2011				Nine months ended September 30, 2012				Remaining unamortized expense at September 30, 2012
Stock-based compensation		$	517			$	2,957			$	3,222

Summary of all warrant activity

		September 30, 2012
Outstanding and exercisable		Warrants				Weighted Average Exercise Price				Weighted Average Remaining Contractual Life
January 1, 2012			5,405,606			$	0.57				3.56
Issued			--			$	--				--
Expired/forfeited			(62,384	)			1.25				--
Exercised			(343,817	)		$	1.03				--
Outstanding and exercisable, September 30, 2012			4,999,405			$	1.60				1.63

Summary of outstanding warrants to purchase common stock

Description		Issue Date				Exercise Price				Shares				Expiration Date

August 2009 Employee Warrants		8/25/2009				$	0.50				240,000			8/25/2016
January 2010 Investor Warrant		1/28/2010				$	1.00				40,000			1/28/2013
2007 Debt Extension Warrants		9/22/2010				$	1.00				16,000			9/22/2015
September 2010 Repricing Warrant		9/28/2010				$	1.38				4,000			9/28/2013
October 2010 Repricing Warrants		10/18/2010				$	1.38				2,312,362			10/18/2013
October 2010 Employee Warrants		10/15/2010				$	1.38				1,400,000			10/15/2013
December 2010 Employee Warrants		12/3/2010				$	1.63				200,000			12/3/2015
January 2011 Employee Warrant		1/21/2011				$	2.00				20,000			1/21/2014
February 2011 Legal Advisor Warrant		2/22/2011				$	2.00				80,000			2/22/2016
March 2011 Investor Warrants		3/9/2011				$	3.13				612,943			3/9/2016
March 2011 Investor Warrants		4/7/2011				$	3.13				34,100			4/7/2016
May 2011 Consultant Warrant		5/17/2011				$	4.05				20,000			5/17/2014
September 2011 Employee Warrant		9/12/2011				$	3.90				20,000			9/12/2014
Total Warrants Outstanding											4,999,405