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Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2012

Weighted-Average Assumptions used in Calculations of Fair Value

The following table summarizes weighted-average assumptions used in our calculations of fair value for the six months ended June 30, 2012:

		Black-Scholes-Merton				Monte Carlo Simulation
Volatility			100	%			94	%
Expected life of options (in years)			6				6
Risk-free interest rate			0.92	%			1.64	%
Dividend yield			0	%			0	%
Forfeiture rate			0	%			0	%

X

- Definition

Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	duration