Stock Options and Stock Grants (Tables)

12 Months Ended

Dec. 31, 2012

Stock Options and Stock Grants [Abstract]

Assumptions used to calculate the Black-Scholes option pricing model for stock options granted

	Years Ended December 31,
	2012			2011
Weighted-average risk-free interest rates:		1.10	%		2.51	%
Dividend yield:		0.00	%		0.00	%

Weighted-average expected life of the option:		7 years			7 years
Weighted-average expected stock price volatility:		85.71	%		74.20	%
Weighted-average fair value of the options granted:	$	0.23		$	0.89

Summary of option activity

Options	Shares			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value
Outstanding on January 1, 2012		1,587,432		$	2.47
Granted		599,000		$	0.23
Forfeited or expired		(329,233	)		3.78
Outstanding on December 31, 2012		1,857,199		$	1.69		7.26	$	23,360
Exercisable on December 31, 2012		935,587		$	2.63		5.55		—
Shares available for grant		1,277,138