| In millions, except per share items | Dec-31-20 | Dec-31-19 |
| | 10-K | 10-K |
| Assets | | |
| Current assets | | |
| Cash and cash equivalents | 219.9 | 16.0 |
| Accounts receivable | 1.0 | 1.0 |
| Prepaid expenses and other current assets | 3.1 | 3.0 |
| Total current assets | 223.9 | 20.0 |
| Property and equipment, net | 3.4 | 1.1 |
| Restricted cash | 0.5 | |
| Total assets | 227.9 | 21.0 |
| |
| Liabilities and stockholders’/members’ equity (deficit) | | |
| Current liabilities: | | |
| Accounts payable | 1.8 | 1.2 |
| Accrued expenses and other current liabilities | 3.3 | 1.5 |
| Current portion of deferred revenue | 3.8 | 4.4 |
| Total current liabilities | 8.9 | 7.0 |
| Deferred revenue, net of current portion | 3.8 | 6.1 |
| Long-term debt, net of issuance costs | | 3.7 |
| Other long-term liabilities | 0.5 | 0.1 |
| Total liabilities | 13.1 | 16.8 |
| |
| Commitments and contingencies (Note 8) | | |
| Redeemable convertible preferred shares, no par value; no shares authorized, issued or outstanding at December 31, 2020; 51,217,321 shares authorized and 35,524,212 shares issued and outstanding at December 31, 2019 | | 47.0 |
| |
| Stockholders’/Members’ equity (deficit) | | |
| Preferred stock, par value $.001 per share: authorized, 5,000,000 shares; none issued | | |
| Common stock value | | |
| Incentive shares, no par value; no shares authorized, issued or outstanding at December 31, 2020; 7,717,678 shares authorized and 946,751 shares issued and outstanding at December 31, 2019 | | 0.2 |
| Additional paid-in capital | 300.7 | |
| Accumulated deficit | -86.0 | -43.0 |
| Total stockholders’/members’ equity (deficit) | 214.7 | -42.8 |
| Total liabilities, redeemable convertible preferred stock/shares and stockholders’/members’ equity | 227.9 | 21.0 |