v2.4.0.8

Summary of Stock Option Activity (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014
Number of Shares
Beginning Balance	279,000
Granted
Exercised	(140,000)
Forfeited	(20,000)
Ending Balance	119,000
Options vested and expected to vest thereafter	119,000
Weighted Average Exercise Price
Beginning Balance	$ 3.31
Granted
Exercised	$ 1.13
Forfeited	$ 6.10
Ending Balance	$ 5.41
Options vested and expected to vest thereafter	$ 5.41
Weighted-Average Remaining Contractual Term
Outstanding, end of period	3 years 6 months
Options vested and expected to vest thereafter	3 years 6 months
Aggregate Intrinsic Value
Outstanding, end of period	$ 16,000
Options vested and expected to vest thereafter	$ 16,000

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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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 by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding.

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As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding 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 outstanding, 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 price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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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Number of share options (or share units) exercised during the current period.

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