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v3.23.1

Equity Incentive Plans (Tables) | 9 Months Ended
--- | ---
Mar. 31, 2023
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, 2022 |  | 3,899 | ​ | $ | 209.70 |  | 7.77
Granted |  | 49,212 | ​ | ​ | 4.00 |  |
Forfeited/Cancelled |  | (152) | ​ | ​ | 126.84 |  |
Expired |  | (175) | ​ | ​ | 131.45 |  |
Outstanding at March 31, 2023 |  | 52,784 | ​ | $ | 18.42 |  | 9.31
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at March 31, 2023 |  | 2,920 | ​ | $ | 227.28 |  | 6.44
​ ​
Restricted stock activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average Grant
​ | ​ | Number of | ​ | Date Fair
​ | ​ | Shares | ​ | Value
Unvested at June 30, 2022 |  | 80,373 | ​ | $ | 148.91
Granted |  | 6,825 | ​ | ​ | 3.79
Vested |  | (36,695) | ​ | ​ | 135.41
Forfeited/Cancelled | ​ | (6,689) | ​ | ​ | 135.66
Unvested at March 31, 2023 |  | 43,814 | ​ | $ | 139.63
​ ​
Restricted stock units activity | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  |  |  | ​ | ​
​ | ​ | ​ | ​ | Weighted
​ | ​ | ​ | ​ | Average Grant
​ | ​ | Number of | ​ | Date Fair
​ | ​ | Shares | ​ | Value
Unvested at June 30, 2022 |  | 8,500 | ​ | $ | 25.88
Vested |  | (2,580) | ​ | ​ | 26.85
Unvested at March 31, 2023 |  | 5,920 | ​ | $ | 25.42
​ ​
Stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended
​ | ​ | March 31, | ​ | March 31,
​ |  | 2023 |  | 2022 | ​ | 2023 |  | 2022
​ | ​ | (in thousands)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Cost of sales | ​ | $ | 4 | ​ | $ | 7 | ​ | $ | 12 | ​ | $ | 24
Research and development | ​ | ​ | 2 | ​ | ​ | 73 | ​ | ​ | 25 | ​ | ​ | 467
Selling and marketing | ​ | ​ | 3 | ​ | ​ | 23 | ​ | ​ | 9 | ​ | ​ | 51
General and administrative | ​ |  | 893 | ​ |  | 1,167 | ​ |  | 5,100 | ​ |  | 3,476
Total stock-based compensation expense | ​ | $ | 902 | ​ | $ | 1,270 | ​ | $ | 5,146 | ​ | $ | 4,018

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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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&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 https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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