| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Total Revenues | 0.1 | 0.1 | 0.0 | 0.0 | 0.6 | 0.6 | 0.1 | 0.0 |
| Total Revenues growth | -84.1% | -78.1% | -74.9% | -45.9% | 67.6% | 242.8% | 717.3% | 86.3% |
| Costs and Expenses | | | | | | | | |
| Costs of revenue | 0.7 | 0.5 | 0.5 | 0.4 | 0.6 | 0.5 | 0.7 | 0.7 |
| Research, development and manufacturing operations | 0.8 | 1.7 | 1.6 | 1.5 | 1.5 | 1.4 | 1.4 | 1.1 |
| Selling, general and administrative | 1.2 | 1.6 | 1.2 | 1.9 | 0.9 | 0.8 | 1.1 | 0.9 |
| Share-based compensation | 0.6 | 1.4 | 1.7 | 3.8 | | | | |
| Depreciation and amortization | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Total Costs and Expenses | 3.3 | 5.1 | 4.9 | 7.7 | 2.9 | 2.8 | 3.2 | 2.7 |
| Loss from Operations | -3.2 | -5.0 | -4.9 | -7.7 | -2.3 | -2.2 | -3.2 | -2.7 |
| Operating margin | -3111.0% | -4045.3% | -38793.8% | -120594.4% | -358.0% | -390.5% | -6271.8% | -22694.1% |
| |
| Other Income/(Expense) | | | | | | | | |
| Other income/(expense), net | | 0.0 | 0.0 | 0.0 | 0.0 | | -0.2 | 0.1 |
| Interest expense | -0.8 | -1.1 | -0.3 | -0.3 | 0.0 | -2.1 | -0.2 | -0.2 |
| |
| Change in fair value of derivatives and gain/(loss) on extinguishment of liabilities, net | | | | | | | | |
| Total Other Income/(Expense) | -0.8 | -1.1 | -0.3 | -0.2 | 0.0 | -2.1 | -0.4 | 0.1 |
| Income/(Loss) on Equity Method Investments | 0.0 | | 0.0 | 0.0 | | 0.0 | | |
| Net Income/(Loss) | -3.9 | -6.1 | -5.2 | -7.9 | -2.3 | -4.3 | -3.6 | -2.6 |
| |
| Net Income/(Loss) Per Share (Basic) | ($0.33) | ($0.17) | ($0.15) | ($0.24) | ($0.08) | ($0.20) | ($0.89) | ($0.67) |
| Net Income/(Loss) Per Share (Diluted) | ($0.33) | ($0.17) | ($0.17) | ($0.24) | ($0.08) | ($0.20) | ($0.89) | ($0.67) |
| |
| Weighted Average Common Shares Outstanding (Basic) | 46.9 | 35.6 | 29.8 | 33.2 | 30.6 | 21.7 | 3.9 | 3.8 |
| Weighted Average Common Shares Outstanding (Diluted) | 46.9 | 35.6 | 29.8 | 33.2 | 30.6 | 21.7 | 3.9 | 3.8 |
| |
| Other Comprehensive Income/(Loss) | | | | | | | | |
| Foreign currency translation gain/(loss) | 0.0 | 0.0 | | 0.0 | 0.0 | 0.0 | | |
| Net Comprehensive Income/(Loss) | -3.9 | -6.1 | -5.2 | -7.9 | -2.3 | -4.3 | -3.6 | -2.6 |