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v3.22.2.2

Equity Incentive Plans (Tables) | 12 Months Ended
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Jun. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | ​ | ​ |  | Weighted
​ | ​ | ​ | ​ | ​ | ​ | ​ | Average
​ | ​ | ​ | ​ | Weighted | ​ | Remaining
​ | ​ | Number of | ​ | Average | ​ | Contractual
​ | ​ | Options | ​ | Exercise Price | ​ | Life in Years
Outstanding June 30, 2021 |  | 109,588 | ​ | $ | 14.52 |  | 8.07
Forfeited/Cancelled |  | (15,569) | ​ | ​ | 7.98 |  |
Expired |  | (13,642) | ​ | ​ | 9.65 |  |
Outstanding at June 30, 2022 |  | 80,377 | ​ | $ | 16.61 |  | 7.77
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at June 30, 2022 |  | 54,649 | ​ | $ | 20.58 |  | 7.77
Stock options outstanding | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ |  |  |  | ​ | ​ |  | Weighted |  |  |  | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Average | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Remaining | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | Weighted | ​ | Contractual | ​ | ​ | ​ | ​ | ​
Range of | ​ | Number of | ​ | Average | ​ | Life of | ​ | Number of | ​ | Weighted
Exercise | ​ | Options | ​ | Exercise | ​ | Options | ​ | Options | ​ | Average
Prices | ​ | Outstanding | ​ | Price | ​ | Outstanding | ​ | Exercisable | ​ | Exercise Price
$ | 6.2 - 9.70 |  | 38,998 | ​ | $ | 6.44 |  | 7.65 |  | 19,882 | ​ | $ | 6.50
$ | 9.80 - 14.70 |  | 41,225 | ​ | $ | 14.13 |  | 7.90 |  | 34,613 | ​ | $ | 14.28
$ | 2,800.00 - 4,200.00 |  | 154 | ​ | $ | 3,255.06 |  | 3.80 |  | 154 | ​ | $ | 3,255.06
​ | ​ |  | 80,377 | ​ | $ | 16.61 |  | 7.77 |  | 54,649 | ​ | $ | 20.58
Restricted stock activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average Grant
​ | ​ | Number of | ​ | Date Fair
​ | ​ | Shares | ​ | Value
Unvested at June 30, 2021 |  | 1,955,268 | ​ | $ | 7.83
Granted |  | 295,000 | ​ | ​ | 3.67
Vested |  | (642,696) | ​ | ​ | 6.81
Unvested at June 30, 2022 |  | 1,607,572 | ​ | $ | 7.47
Restricted stock units activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average Grant
​ | ​ | Number of | ​ | Date Fair
​ | ​ | Shares | ​ | Value
Unvested at June 30, 2021 |  | 78,318 | ​ | $ | 7.20
Granted | ​ | 170,000 | ​ | ​ | 1.29
Vested |  | (15,396) | ​ | ​ | 6.20
Forfeited | ​ | (62,922) | ​ | ​ | 7.44
Unvested at June 30, 2022 |  | 170,000 | ​ | $ | 1.29
Stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended
​ | ​ | June 30,
​ | ​ | 2022 |  | 2021
​ | ​ | (In thousands)
Cost of sales | ​ | $ | 31 | ​ | $ | 16
Research and development | ​ | ​ | 536 | ​ | ​ | 68
Selling and marketing | ​ | ​ | 24 | ​ | ​ | 27
General and Administrative | ​ |  | 4,657 | ​ |  | 3,463
Total stock-based compensation expense | ​ | $ | 5,248 | ​ | $ | 3,574

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