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STOCK BASED COMPENSATION (Tables)

6 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based compensation expense

The following table shows total stock-based compensation expense included in the Condensed Consolidated Statements of Operations for the three and six months ended December 31, 2013 and 2012 (in thousands):

	Three Months Ended December 31,								Six Months Ended December 31,
	2013				2012				2013				2012
Cost of sales	$	148			$	104			$	292			$	185
Research and development	553				401				1,049				667
Sales, general and administrative	721				388				1,248				697
	$	1,422			$	893			$	2,589			$	1,549

Summary of option activity for the company's stock incentive plans

The following is a summary of option activity for the Company’s stock incentive plans for the six months ended December 31, 2013:

	Common Stock Options Outstanding
	Number of Shares			Weighted Average Exercise Price				Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
										(In thousands)
Balance, June 30, 2013	3,614,262			$	3.07
Exercised	(455,980	)		2.20
Forfeitures and cancellations	(107,318	)		10.55
Balance, December 31, 2013	3,050,964			$	2.93			5.65		$	131,270
Vested and expected to vest as of December 31, 2013	3,016,040			$	2.85			5.61		$	130,033
Vested and exercisable as of December 31, 2013	2,421,183			$	1.30			4.97		$	108,131

Fair value of employee stock options

For the three and six months ended December 31, 2012, the fair value of employee stock options was estimated using the following weighted average assumptions:

	Three And Six Months Ended December 31, 2012
Expected term	6.1 years
Expected volatility	52		%
Risk-free interest rate	0.8		%
Expected dividend yield	—
Weighted average grant date fair value	$	5.37

Activity of RSUs

The following table summarizes the activity of the RSUs made by the Company:

	Number of Shares			Weighted Average Grant Date Fair Value
Non-vested RSUs, June 30, 2013	744,906			$	14.74
RSUs granted	77,033			32.48
RSUs vested	(100,431	)		16.09
RSUs canceled	(188,905	)		14.98
Non-vested RSUs, December 31, 2013	532,603			$	16.96

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Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

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