v2.4.0.6

Summary of Stock Option Activity (Detail) (USD $)	9 Months Ended
	Sep. 30, 2012
Number of Shares
Beginning Balance	546,001
Granted	8,000
Exercised	(3,334)
Forfeited	(117,667)
Ending Balance	433,000
Exercisable	425,000
Options vested and expected to vest thereafter	433,000
Weighted Average Exercise Price
Beginning Balance	$ 4.54
Granted	$ 1.80
Exercised	$ 0.90
Forfeited	$ 7.90
Ending Balance	$ 3.60
Exercisable	$ 3.64
Options vested and expected to vest thereafter	$ 3.60
Weighted-Average Remaining Contractual Term
Outstanding, beginning of period	0 years
Granted	0 years
Exercised	0 years
Forfeited	0 years
Outstanding, end of period	2 years 3 months 18 days
Exercisable	2 years 4 months 24 days
Options vested and expected to vest thereafter	2 years 3 months 18 days
Aggregate Intrinsic Value
Granted
Exercised
Forfeited
Outstanding, end of period	174,000
Exercisable	172,000
Options vested and expected to vest thereafter	$ 174,000

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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 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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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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