| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | -18.9 | 14.2 | -5.7 | -7.5 | -14.1 | -8.2 | -2.4 | -3.2 |
| Depreciation and amortization [+] | 0.5 | 0.4 | 0.4 | 0.4 | 0.4 | 0.1 | | |
| Depreciation | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | |
| Amortization of intangible assets | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.1 | | |
| Asset impairment charges | | | | 1.3 | | 5.4 | | |
| Stock-based compensation | 15.4 | 0.7 | 1.2 | 0.7 | 7.8 | | | |
| Deferred taxes | 0.0 | | | | | | | |
| Change in working capital [+] | 5.1 | -3.6 | 0.1 | 0.3 | -0.1 | 0.3 | 2.1 | -0.1 |
| Accounts receivable | 0.0 | | | | | | | |
| Other current assets | 0.0 | | | | | | | |
| Accounts payable | 0.1 | 0.0 | 0.0 | 0.1 | -0.1 | 0.0 | 0.6 | |
| Accrued expenses | -0.1 | 0.1 | 0.2 | 0.1 | 0.0 | 0.4 | 1.4 | |
| Other | 5.1 | -3.8 | | 0.1 | -0.1 | 0.0 | 0.2 | -0.1 |
| Other operating activities | -2.4 | -12.1 | 3.0 | 3.1 | 3.8 | 1.7 | | -0.1 |
| Cash from operations | -0.3 | -0.3 | -0.9 | -1.7 | -2.2 | -0.7 | -0.3 | -3.2 |
| |
| Capital expenditures [+] | -0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Purchases of property and equipment | 0.0 | | | | | | | |
| Capitalized product costs | -0.1 | | | | | | | |
| Sales of property and equipment | | 0.0 | | 0.0 | -0.2 | | | |
| Purchases of intangible assets | | | | | | 0.0 | | |
| Acquisitions | | | | -0.1 | -0.4 | -0.4 | | |
| Other cash from investing | 0.1 | -0.1 | -0.2 | | | | | -8.2 |
| Cash from investing | 0.0 | -0.1 | -0.2 | -0.1 | -0.5 | -0.4 | 0.0 | -8.2 |
| |
| Issuance of common stock, net | | | | | | | | 0.0 |
| Other cash from financing | 0.5 | 0.5 | 1.1 | 1.7 | 2.7 | 1.2 | 0.3 | 11.5 |
| Cash from financing | 0.5 | 0.5 | 1.1 | 1.7 | 2.7 | 1.2 | 0.3 | 11.5 |
| |
| Free cash flow | -0.4 | -0.3 | -0.9 | -1.7 | -2.2 | -0.7 | -0.3 | -3.2 |
| Per share (diluted) | ($0.01) | ($0.01) | ($0.03) | ($0.07) | ($0.26) | ($0.10) | ($0.04) | ($12.96) |
| |
| Cash paid for interest | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | | | |