Stock-Based Compensation, Restricted Stock and Stock Options (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
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| Total stock-based compensation | $ 8,079,223 | $ 1,096,943 |
| Research and development expenses [Member] | ||
| Total stock-based compensation | 1,152,341 | 258,908 |
| Selling, general and administrative expenses [Member] | ||
| Total stock-based compensation | $ 6,926,882 | $ 838,035 |
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