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 | -15.6 | -22.3 | -16.6 | 10.0 | -4.9 | -14.1 | -12.2 | -1.3 |
Depreciation and amortization [+] | 1.2 | 0.9 | 0.7 | 0.5 | 0.2 | 1.1 | 1.0 | 0.9 |
Depreciation | 1.2 | 0.9 | 0.7 | 0.5 | 0.2 | 1.1 | 1.0 | 0.9 |
Asset impairment charges | 5.0 | | | | | 6.3 | | |
Stock-based compensation | 3.2 | 3.9 | 5.6 | 2.9 | 3.4 | 2.7 | 5.7 | 7.9 |
Deferred taxes | -0.1 | -0.3 | -0.6 | 0.0 | -0.5 | | | |
Change in working capital [+] | 4.6 | 8.1 | 1.8 | -0.9 | -1.1 | 6.1 | 0.2 | -6.2 |
Accounts receivable | -1.0 | 0.9 | 0.9 | -1.9 | -1.2 | 0.1 | -0.6 | 1.2 |
Inventories | 0.2 | 1.7 | -1.4 | -0.1 | 1.0 | 1.3 | -2.5 | -9.2 |
Other current assets | 1.0 | 3.0 | -3.0 | -0.8 | -0.4 | 0.1 | 0.1 | 1.2 |
Accounts payable | | | | | | | | 0.2 |
Accrued expenses | | | | | | | | 0.2 |
Other | 4.4 | 2.5 | 5.3 | 1.9 | -0.6 | 4.6 | 3.1 | 0.2 |
Other operating activities | -5.9 | 2.4 | 6.9 | 0.0 | 6.5 | -4.1 | | |
Cash from operations | -7.5 | -7.3 | -2.2 | 12.6 | 3.6 | -2.1 | -4.2 | -6.7 |
|
Capital expenditures [+] | 0.0 | -1.1 | -1.1 | -0.9 | -0.5 | 0.0 | -0.1 | -0.4 |
Purchases of property and equipment | 0.0 | -1.1 | -1.1 | -0.9 | -0.5 | 0.0 | -0.1 | -0.4 |
Sales of property and equipment | | | | | | 0.0 | | |
Acquisitions | | | | | | -0.3 | -0.3 | |
Other cash from investing | | | | -0.4 | -1.5 | 1.1 | -1.4 | -0.9 |
Cash from investing | 0.0 | -1.1 | -1.1 | -1.2 | -2.0 | 0.9 | -1.7 | -1.4 |
|
Issuance of common stock, net | 4.4 | 0.2 | | | | | 2.5 | 8.2 |
Option exercises | | 0.2 | 0.5 | 0.5 | | | | |
Financing costs | -0.2 | | | | | | | |
Other cash from financing | -0.3 | 3.3 | 0.6 | -0.7 | 0.1 | 1.7 | 1.6 | |
Cash from financing | 4.4 | 3.3 | 0.0 | -1.2 | 0.1 | 1.7 | 4.2 | 8.2 |
|
Free cash flow | -7.5 | -8.4 | -3.4 | 11.7 | 3.2 | -2.1 | -4.3 | -7.2 |
Per share (diluted) | ($0.07) | ($0.08) | ($0.03) | $0.10 | $0.04 | ($0.04) | ($0.12) | ($0.23) |
|
Cash paid for interest | | | 0.0 | 0.2 | 0.2 | 0.3 | | 0.2 |
Cash paid for income taxes | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | | |