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Stockholders' Equity (Tables) | 9 Months Ended
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Mar. 31, 2020
Stockholders' Equity |
Schedule of stock-based compensation expense in the consolidated statements of operations | ​ We recorded stock-based compensation expense in the consolidated statements of operations as follows (in thousands): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​ | Nine Months Ended March 31,
​ |  | 2019 |  | 2020 |  | 2019 |  | 2020
Cost of goods sold | ​ | $ | 182 | ​ | $ | 189 | ​ | $ | 539 | ​ | $ | 517
Selling, general and administrative | ​ | ​ | 5,543 | ​ | ​ | 5,520 | ​ |  | 18,487 | ​ |  | 17,153
Research and development | ​ | ​ | 163 | ​ | ​ | 129 | ​ |  | 488 | ​ |  | 427
Stock-based compensation expense | ​ | $ | 5,888 | ​ | $ | 5,838 | ​ | $ | 19,514 | ​ | $ | 18,097
​
Summary of stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted Average | ​ | Weighted-Average | ​ | Aggregate
​ | ​ | Number of | ​ | Exercise | ​ | Remaining Contractual | ​ | Intrinsic Value
​ |  | Options |  | Price |  | Term |  | (in thousands)
Outstanding at June 30, 2019 |  | 515,884 | ​ | $ | 33.74 | ​ | ​ | ​ | ​ | ​
Granted |  | 13,263 | ​ | ​ | 101.31 | ​ | ​ | ​ | ​ | ​
Exercised |  | (201,003) | ​ | ​ | 20.45 | ​ | ​ | ​ | ​ | ​
Expired or forfeited |  | (1,092) | ​ | ​ | 85.37 | ​ | ​ | ​ | ​ | ​
Outstanding at March 31, 2020 |  | 327,052 | ​ | ​ | 44.47 |  | 2.7 years | ​ | $ | 8,867
Exercisable at March 31, 2020 |  | 295,525 | ​ | ​ | 39.85 |  | 2.0 years | ​ | ​ | 8,867
​
Summary of RSU award activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted-
​ | ​ | ​ | ​ | Average
​ |  | Shares |  | Fair Value
Nonvested at June 30, 2019 |  | 521,140 | ​ | $ | 73.97
Granted |  | 300,998 | ​ | ​ | 88.26
Vested |  | (388,756) | ​ | ​ | 68.60
Forfeited |  | (13,907) | ​ | ​ | 83.24
Nonvested at March 31, 2020 |  | 419,475 | ​ | ​ | 88.89
​

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