Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:



	Year Ended December 31,
	2012	2011	2010
Weighted average expected life (years)	4.5 - 6.0	5.0 - 9.0	9.0
Risk-free interest rate	0.6% - 1.0%	0.9% - 3.3%	3.1%
Expected volatility	245% - 310%	86% - 98%	105%
Expected dividend yield	—%	—%	—%

Schedule of Stock Option Activity

A summary of stock option activity for the three years ended December 31, 2012 is as follows:



	Options		Weighted- Average Exercise Price per Share		Weighted-Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding on January 1, 2010	2,130,440		$	0.40
Granted	25,000		0.36
Exercised	(306,900	)	0.15
Forfeited/Canceled	(650,150	)	0.63
Outstanding on December 31, 2010	1,198,390		0.30
Granted	57,000		0.25
Exercised	—		—
Forfeited/Canceled	(64,820	)	0.50
Outstanding on December 31, 2011	1,190,570		0.33
Granted	116,800		0.24
Exercised	—		—
Forfeited/Canceled	(446,110	)	0.18
Outstanding on December 31, 2012	861,260		$	0.40	4.4	$	1,000
Exercisable on December 31, 2012	661,500		$	0.41	3.5	$	1,000

Schedule of Nonvested Share Activity

A summary of the status of the Company’s non-vested stock options as of December 31, 2012, and changes during the year then ended, is presented below:



	Shares		Weighted Average Grant Date Fair Value per Share
Non-vested stock options January 1, 2012	179,910		$	0.44
Non-vested stock options granted	116,800		0.24
Vested stock options	(80,170	)	0.47
Forfeited stock options	(16,780	)	0.17
Non-vested stock options at December 31, 2012	199,760		0.29

Schedule of Grant Date Intrinsic Value

Additional information related to stock options granted, vested and exercised for the three years ended December 31, 2012 is a follows:



	Year Ended December 31,
	2012		2011		2010
Grant date fair value of stock options granted	$	27,663	$	11,879	$	8,100
Grant date fair value of stock options vested	37,814		53,871		90,810
Intrinsic value of stock options exercised	—		—		47,151