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STOCK BASED COMPENSATION (Tables) | 9 Months Ended
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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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- Definition 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 + Details
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- Definition 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 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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