v3.23.3

Share-Based Compensation (Tables) | 12 Months Ended
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Jun. 30, 2023
Share-Based Payment Arrangement [Abstract] |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | The following table summarizes the components of share-based compensation expense in the Consolidated Statements of Operations (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Year Ended
​ | ​ | June 30,
​ |  | 2023 |  | 2022
Research and development | ​ | $ | 149 | ​ | $ | 182
General and administrative | ​ |  | 2,714 | ​ |  | 3,776
Total | ​ | $ | 2,863 | ​ | $ | 3,958
Schedule of Stock Option Activity | The following table summarizes all stock option activity during the years ended June 30, 2023 and 2022: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ |  | Weighted- |  | ​ | ​
​ | ​ | ​ | ​ | Weighted- | ​ | average | ​ | ​ | ​
​ | ​ | ​ | ​ | average | ​ | Remaining | ​ | Aggregate
​ | ​ | Stock | ​ | Exercise | ​ | Contractual | ​ | Intrinsic Value
​ |  | Options |  | Price |  | Term (in years) |  | (in thousands)
Outstanding as of July 1, 2021 |  | 341,686 | ​ | $ | 32.75 |  | 8.8 | ​ | $ | 1,995
Granted |  | 313,568 | ​ | ​ | 27.50 |  | — | ​ |  | —
Exercised | ​ | (3,380) | ​ | ​ | 22.75 | ​ | — | ​ | ​ | —
Forfeited/expired |  | (30,068) | ​ | ​ | 35.00 |  | — | ​ |  | —
Outstanding as of June 30, 2022 |  | 621,806 | ​ | $ | 30.00 |  | 8.3 | ​ | $ | —
As of June 30, 2022, vested and expected to vest |  | 620,810 | ​ | $ | 30.00 |  | 8.3 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable as of June 30, 2022 |  | 197,404 | ​ | $ | 29.25 |  | 6.7 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Outstanding as of June 30, 2022 |  | 621,806 | ​ | $ | 30.00 |  | 8.3 | ​ | $ | —
Granted |  | 307,863 | ​ | ​ | 7.06 |  | — | ​ |  | —
Exercised | ​ | — | ​ | ​ | — | ​ | — | ​ | ​ | —
Forfeited/expired |  | (637,191) | ​ | ​ | 23.96 |  | — | ​ |  | —
Outstanding as of June 30, 2023 |  | 292,478 | ​ | $ | 19.18 |  | 8.5 | ​ | $ | —
As of June 30, 2023, vested and expected to vest |  | 292,431 | ​ | $ | 19.18 | ​ | 8.5 | ​ | $ | —
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable as of June 30, 2023 |  | 96,050 | ​ | $ | 29.17 |  | 7.9 | ​ | $ | —
​
Schedule of Stock Options Outstanding and Exercisable | The following table summarizes information about options outstanding and exercisable at June 30, 2023: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Options Outstanding and Exercisable
​ | ​ | ​ | ​ | Weighted- | ​ | Weighted- | ​ | ​
​ | ​ | ​ | ​ | Average | ​ | Average | ​ | ​
​ | ​ | Number | ​ | Remaining Life | ​ | Exercise | ​ | Number
​ | ​ | Outstanding |  | In Years |  | Price |  | Exercisable
Exercise prices: |  |  |  |  |  | ​ |  |  |
$7.00 - $11.50 |  | 151,309 |  | 9.1 | ​ | $ | 7.51 |  | 6,250
$17.35 - $26.03 |  | 29,674 |  | 7.9 | ​ | $ | 18.00 |  | 29,652
$26.50 - $39.75 | ​ | 95,495 | ​ | 7.9 | ​ | $ | 33.08 | ​ | 47,483
$41.25 - $61.88 | ​ | 16,000 | ​ | 7.4 | ​ | $ | 48.75 | ​ | 12,665
​ |  | 292,478 |  | 8.3 | ​ | $ | 28.31 |  | 96,050
​
Schedule of Fair Value of Options Granted using the Black-Scholes Option Pricing Model | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | 2023 | ​ | 2022
Weighted average risk-free interest rate | ​ | ​ | 3.21% - 3.61 | % | ​ | 0.80 - 2.52 | %
Dividend yield |  | ​ | 0 | % | ​ | 0 | %
Volatility |  | ​ | 115.52 - 116.93 | % | ​ | 119.16 - 120.34 | %
Expected term (in years) |  | ​ | 7 |  | ​ | 6 | ​

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