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Share-based Compensation (Tables) | 12 Months Ended
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Jun. 30, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract] |
Summary of Stock Option Activities | The following table summarizes the Company's stock option activities:
|  |  |  |  | Weighted |  |
|  |  | Weighted |  | Average |  |
|  |  | Average |  | Remaining |  |
| Number of |  | Exercise Price |  | Contractual |  | Aggregate
| Shares |  | Per Share |  | Term (in years) |  | Intrinsic Value
Outstanding at June 30, 2017 | 1,053,367 |  |  | $ | 10.98 |  |  | 4.43 |  |  |
Granted | — |  |  | $ | — |  |  |  |  |
Exercised | (166,389 | ) |  | $ | 11.00 |  |  |  |  | $ | 959,257 |
Canceled or forfeited | — |  |  | $ | — |  |  |  |  |
Outstanding at June 30, 2018 | 886,978 |  |  | $ | 10.97 |  |  | 4.03 |  |
Granted | — |  |  | $ | — |  |  |  |  |
Exercised | (10,500 | ) |  | $ | 10.50 |  |  |  |  | $ | 43,415 |
Canceled or forfeited | — |  |  | $ | — |  |  |  |  |
Outstanding at June 30, 2019 | 876,478 |  |  | $ | 10.98 |  |  | 3.06 |  |  |
Granted | — |  |  | $ | — |  |  |  |  |
Exercised | (2,500 | ) |  | $ | 10.50 |  |  |  |  | $ | 4,726 |
Canceled or forfeited | (230,000 | ) |  | $ | 17.11 |  |  |  |  |
Outstanding at June 30, 2020 | 643,978 |  |  | $ | 8.79 |  |  | 2.89 |  | $ | 1,544,664 |
Options vested and expected to vest | 643,978 |  |  | $ | 8.79 |  |  | 2.89 |  | $ | 1,544,664 |
Exercisable at June 30, 2020 | 643,978 |  |  | $ | 8.79 |  |  | 2.89 |  | $ | 1,544,664 |
Shares Authorized under Stock Option Plans, by Exercise Price Range | Information with respect to stock options outstanding and exercisable as of June 30, 2020 is as follows:
|  | Options Outstanding |  | Options Exercisable
Range of Exercise Prices |  | Number Outstanding |  | Weighted-Average Remaining Contractual Life (Years) |  | Weighted-Average Exercise Price |  | Number Exercisable |  | Weighted-Average Exercise Price
$7.21 - $7.21 |  | 6,875 |  |  | 3.58 |  | $ | 7.21 |  |  | 6,875 |  |  | $ | 7.21 |
$7.44 - $7.44 |  | 331,139 |  |  | 3.71 |  | $ | 7.44 |  |  | 331,139 |  |  | $ | 7.44 |
$7.56 - $9.19 |  | 132,150 |  |  | 3.14 |  | $ | 8.47 |  |  | 132,150 |  |  | $ | 8.47 |
$9.90 - $12.68 |  | 168,000 |  |  | 1.11 |  | $ | 11.64 |  |  | 168,000 |  |  | $ | 11.64 |
$12.91 - $12.91 |  | 5,814 |  |  | 0.79 |  | $ | 12.91 |  |  | 5,814 |  |  | $ | 12.91 |
$7.21 - $12.91 |  | 643,978 |  |  | 2.89 |  | $ | 8.79 |  |  | 643,978 |  |  | $ | 8.79 |
Restricted Stock Units Activity | The following table summarizes the Company's TRSU activities:
|  | Number of Restricted Stock Units |  | Weighted Average Grant Date Fair Value Per Share |  | Weighted Average Remaining Recognition Period (Years) |  | Aggregate Intrinsic Value
Nonvested at June 30, 2017 |  | 974,365 |  |  | $ | 13.51 |  |  | 1.68 |  | $ | 16,244,748 |
Granted |  | 482,397 |  |  | $ | 16.46 |  |  |  |  |
Vested |  | (468,051 | ) |  | $ | 13.24 |  |  |  |  |
Forfeited |  | (69,688 | ) |  | $ | 14.25 |  |  |  |  |
Nonvested at June 30, 2018 |  | 919,023 |  |  | $ | 15.14 |  |  | 1.62 |  | $ | 13,086,888 |
Granted |  | 527,022 |  |  | $ | 11.28 |  |  |  |  |
Vested |  | (499,954 | ) |  | $ | 13.09 |  |  |  |  |
Forfeited |  | (39,750 | ) |  | $ | 13.82 |  |  |  |  |
Nonvested at June 30, 2019 |  | 906,341 |  |  | $ | 14.09 |  |  | 1.62 |  | $ | 8,465,225 |
Granted |  | 505,440 |  |  | $ | 8.51 |  |  |  |  |
Vested |  | (455,893 | ) |  | $ | 13.53 |  |  |  |  |
Forfeited |  | (23,750 | ) |  | $ | 13.19 |  |  |  |  |
Nonvested at June 30, 2020 |  | 932,138 |  |  | $ | 11.36 |  |  | 1.66 |  | 10,141,661 |
The following table summarizes the Company's PRSU activities:
|  | Number of Performance-based Restricted Stock Units |  | Weighted Average Grant Date Fair Value Per Share |  | Weighted Average Remaining Recognition Period (Years) |  | Aggregate Intrinsic Value
Nonvested at June 30, 2017 |  | 170,000 |  |  | $ | 17.58 |  |  | 2.21 |  | $ | 2,833,900 |
Granted |  | 298,050 |  |  | $ | 16.22 |  |  |  |  |
Vested |  | (38,247 | ) |  | $ | 17.58 |  |  |  |  |
Forfeited |  | (7,503 | ) |  | $ | 17.26 |  |  |  |  |
Nonvested at June 30, 2018 |  | 422,300 |  |  | $ | 16.63 |  |  | 2.06 |  | $ | 6,013,552 |
Granted |  | 291,750 |  |  | $ | 11.18 |  |  |  |  |
Vested |  | (111,623 | ) |  | $ | 16.68 |  |  |  |  |
Forfeited |  | (5,703 | ) |  | $ | 16.78 |  |  |  |  |
Nonvested at June 30, 2019 |  | 596,724 |  |  | $ | 13.95 |  |  | 1.88 |  | $ | 5,573,402 |
Granted |  | 155,000 |  |  | $ | 7.36 |  |  |  |  |
Vested |  | (110,659 | ) |  | $ | 16.68 |  |  |  |  |
Forfeited |  | (298,290 | ) |  | $ | 11.32 |  |  |  |  |
Nonvested at June 30, 2020 |  | 342,775 |  |  | $ | 12.38 |  |  | 1.60 |  | 3,729,392 |
Employee Stock Purchase Plan, Valuation Assumptions | The ESPP is compensatory and results in compensation expense. The fair values of common shares to be issued under the ESPP were determined using the Black-Scholes option pricing model with the following assumptions:
| Year Ended June 30,
| 2020 |  | 2019 |  | 2018
Volatility rate | 46.4% - 58.3% |  | 40.1% - 40.7% |  | 42.1% - 45.3%
Risk-free interest rate | 0.2% - 1.6% |  | 2.1% - 2.9% |  | 1.4% - 2.6%
Expected term | 1.3 years |  | 1.3 years |  | 1.3 years
Dividend yield | —% |  | —% |  | —%
Share-based Compensation, Allocation of Recognized Period Costs | Share-based Compensation Expenses The total share-based compensation expense related to TRSU, PSUs, MSUs, stock options and ESPP described above, recognized in the consolidated statements of operations for the years presented was as follows:
| Year Ended June 30,
| 2020 |  | 2019 |  | 2018
| (in thousands)
Cost of goods sold | $ | 1,530 |  |  | $ | 1,963 |  |  | $ | 1,641 |
Research and development | 2,895 |  |  | 2,453 |  |  | 1,855 |
Selling, general and administrative | 6,029 |  |  | 8,761 |  |  | 7,916 |
| $ | 10,454 |  |  | $ | 13,177 |  |  | $ | 11,412 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 + Details
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- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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