^[2]

2.58%

Employee Stock Option Granted [Member] | Minimum [Member]

^[3]

51.38%

^[2]

1.40%

Outside Director Stock Options Granted [Member]

^[3]

48.67%

Weighted-average fair value per option

$ 4.66

$ 2.27

^[2]

2.08%

Outside Director Stock Options Granted [Member] | Maximum [Member]

^[3]

54.28%

Dividend yield

0.00%

Expected option life

^[1]

10 years

^[2]

1.61%

Outside Director Stock Options Granted [Member] | Minimum [Member]

^[3]

56.68%

^[2]

0.59%

^[3]

55.83%

[1]	The expected option life is based on historical exercises and post-vesting data.
[2]	The risk-free interest rate is based on the U.S. Treasury yield in effect at the grant date over the expected term of the option.
[3]	The expected volatility is based on historical volatility from our traded Common Stock over the expected term of the option.

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

No definition available.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

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