v2.4.0.8

10. Share-Based Compensation (Details-Option activity) (Options, USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Options
Number of Shares
Outstanding, beginning balance	1,468,000
Granted	108,000
Exercised	(91,000)
Forfeited	(14,000)
Expired
Outstanding, ending balance	1,471,848
Exericsable, ending balance	301,000
Vested and expected to vest	1,347,000
Weighted Average Exercise Price
Outstanding, beginning balance	$ 8.38
Granted	$ 13.84
Exercised	$ 5.99
Forfeited	$ 8.43
Expired	$ 6.75
Outstanding, ending balance	$ 8.93
Exericsable, ending balance	$ 6.35
Vested and expected to vest	$ 8.84
Weighted Average Remaining Contractual Life
Outstanding, ending balance	8 years 6 months 23 days
Exercisable	6 years 9 months 19 days
Vested and expected to vest	8 years 6 months 5 days
Aggregate Intrinsic Value
Outstanding, beginning balance	$ 9,731
Exercised	1,447
Forfeited	209
Expired	1
Outstanding, ending balance	20,992
Exercisable	5,069
Vested and expected to vest	$ 19,342

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Net number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of fully vested and expected to vest options that are exercisable.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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Weighted average remaining contractual term for fully vested and expected to vest options that are exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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