Equity Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2013

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Option Activity under its Stock Plans

During the nine months ended September 30, 2013, the Company had the following option activities under its equity incentive plans:

				Outstanding Options
	Available for Grant			Shares			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Balance at December 31, 2012		1,567,902			5,292,738		$	7.38
Shares authorized		1,450,000
Granted		(935,650	)		935,650			14.09
Exercised		0			(624,548	)		3.68
Forfeited		232,636			(232,636	)		12.23
Balance at September 30, 2013		2,314,888			5,371,204		$	8.77		6.44 years	$	2,611,479