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STOCK BASED COMPENSATION (Tables)

9 Months Ended

Mar. 31, 2017

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 Consolidated Statements of Operations for the three and nine months ended March 31, 2017 and 2016 (in thousands):

	Three Months Ended March 31,								Nine Months Ended March 31,
	2017				2016				2017				2016
Cost of revenues	$	39			$	114			$	213			$	341
Research and development	421				566				1,362				1,770
Sales, general and administrative	141				202				519				755
	$	601			$	882			$	2,094			$	2,866

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 nine months ended March 31, 2017:

	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, 2016	2,125,307			$	2.03			2.65		$	77,850
Exercised	(496,800	)		$	2.81
Forfeitures and cancellations	(1,356	)		$	11.72
Balance, March 31, 2017	1,627,151			$	1.78			1.80		$	78,878
Vested and expected to vest as of March 31, 2017	1,627,150			$	1.78			1.80		$	78,878
Vested and exercisable as of March 31, 2017	1,626,889			$	1.78			1.80		$	78,869

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 Per Share
Non-vested RSUs, June 30, 2016	271,971			$	28.72
RSUs granted	72,023			$	55.33
RSUs vested	(109,124	)		$	24.71
RSUs canceled	(42,685	)		$	33.44
Non-vested RSUs, March 31, 2017	192,185			$	39.53

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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