STOCK BASED COMPENSATION (Tables)
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12 Months Ended |
Jun. 30, 2018 |
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| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
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| Stock-based compensation expense |
The following table shows total stock-based compensation expense included in the Consolidated Statements of Operations for fiscal 2018, 2017 and 2016 (in thousands): | | | | | | | | | | | | | | Years Ended June 30, | | 2018 |
| 2017 | | 2016 | Cost of revenues | $ | 360 |
| | $ | 264 |
| | $ | 448 |
| Research and development | 1,873 |
| | 1,861 |
| | 2,296 |
| Sales, general and administrative | 975 |
| | 660 |
| | 975 |
| | $ | 3,208 |
|
| $ | 2,785 |
| | $ | 3,719 |
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| Option activity for Company's stock incentive plans |
The following is a summary of option activity for the Company’s stock incentive plans for fiscal 2018, 2017 and 2016: | | | | | | | | | | | | | | | 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, 2015 | 2,301,144 |
| | $ | 2.38 |
| | 3.82 | | $ | 67,969 |
| Exercised | (171,263 | ) | | $ | 6.46 |
| | | | | Forfeitures and cancellations | (4,574 | ) | | $ | 13.82 |
| | | | | Balance, June 30, 2016 | 2,125,307 |
| | $ | 2.03 |
| | 2.65 | | $ | 77,850 |
| Exercised | (502,350 | ) | | $ | 2.86 |
| | | | | Forfeitures and cancellations | (1,356 | ) | | $ | 11.72 |
| | | | | Balance, June 30, 2017 | 1,621,601 |
| | $ | 1.76 |
| | 1.55 | | $ | 81,413 |
| Exercised | (1,484,110 | ) | | $ | 1.08 |
| | | | | Balance, June 30, 2018 | 137,491 |
| | $ | 9.15 |
| | 3.62 | | $ | 10,390 |
| Vested and expected to vest as of June 30, 2018 | 137,491 |
| | $ | 9.15 |
| | 3.62 | | $ | 10,390 |
| Vested and exercisable as of June 30, 2018 | 137,491 |
| | $ | 9.15 |
| | 3.62 | | $ | 10,390 |
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| Stock options outstanding by exercise price range |
Additional information regarding options outstanding as of June 30, 2018 is as follows: | | | | | | | | | | | | | Options Outstanding & Exercisable | | | Range of Exercise Prices | | Number of
Options | | Weighted
Average
Remaining
Contractual
Life (Years) | | Weighted
Average
Exercise
Price | $0.01 - $8.30 | | 36,878 |
| | 2.28 | | $ | 3.61 |
| $8.31 - $11.74 | | 84,514 |
| | 4.23 | | $ | 10.69 |
| $11.75 - $14.99 | | 11,673 |
| | 3.46 | | $ | 12.65 |
| $15.00 - $18.48 | | 2,676 |
| | 3.42 | | $ | 15.33 |
| $18.49 - $19.99 | | 1,750 |
| | 3.48 | | $ | 18.92 |
| | | 137,491 |
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| 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, 2016 | 400,635 |
| | $ | 26.95 |
| RSUs granted | 132,746 |
| | $ | 31.38 |
| RSUs vested | (141,159 | ) | | $ | 23.54 |
| RSUs canceled | (120,251 | ) | | $ | 31.84 |
| Non-vested RSUs, June 30, 2016 | 271,971 |
| | $ | 28.72 |
| RSUs granted | 72,023 |
| | $ | 55.33 |
| RSUs vested | (120,649 | ) | | $ | 25.29 |
| RSUs canceled | (42,972 | ) | | $ | 33.45 |
| Non-vested RSUs, June 30, 2017 | 180,373 |
| | $ | 40.51 |
| RSUs granted | 69,188 |
| | $ | 64.66 |
| RSUs vested | (78,358 | ) | | $ | 38.09 |
| RSUs canceled | (27,103 | ) | | $ | 41.45 |
| Non-vested RSUs, June 30, 2018 | 144,100 |
| | $ | 53.24 |
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