In millions, except per share items | Dec-05-22 | Dec-05-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| 8-K | 8-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
Net income | 6.4 | -4.4 | 1.2 | 1.8 | -2.7 | -10.0 | -6.9 | -6.2 |
Depreciation and amortization [+] | | | 5.6 | 5.0 | 3.9 | 3.1 | 2.6 | 2.3 |
Depreciation | | | 5.4 | 4.9 | 3.9 | 3.1 | 2.6 | 2.3 |
Amortization of intangible assets | | | 0.2 | 0.1 | 0.1 | | | |
Asset impairment charges | | | 0.2 | | 0.7 | | | |
Stock-based compensation | | | 4.5 | 3.1 | 2.5 | 0.6 | 0.1 | 0.1 |
Change in working capital [+] | | | -0.1 | -0.3 | 0.2 | -6.8 | 3.8 | 0.1 |
Accounts receivable | | | | | | | 0.3 | -1.8 |
Other current assets | | | -0.3 | -0.2 | -0.8 | -0.2 | -0.1 | -0.1 |
Accounts payable | | | -0.2 | -0.2 | -0.3 | 0.3 | 0.4 | 0.1 |
Accrued expenses | | | 0.6 | 0.1 | -0.2 | 1.5 | 1.0 | 0.3 |
Deferred revenues | | | | | | | | 1.6 |
Other | | | -0.2 | 0.0 | 1.6 | -8.4 | 2.1 | |
Other operating activities | | | -0.2 | 4.2 | -6.0 | 16.4 | 2.7 | 0.2 |
Cash from operations | | | 11.2 | 13.7 | -1.4 | 3.4 | 2.3 | -3.5 |
|
Capital expenditures | | | -4.1 | -4.8 | -8.4 | -6.4 | -4.5 | -2.2 |
Purchases of property and equipment | | | -4.1 | -4.8 | -8.4 | -6.4 | -4.5 | -2.2 |
Acquisitions | | | -14.6 | | -1.7 | | | |
Other cash from investing | | | -0.1 | -0.1 | 0.0 | -0.1 | -0.1 | 0.0 |
Cash from investing | | | -18.8 | -4.9 | -10.2 | -6.5 | -4.6 | -2.2 |
|
Issuance of common stock, net | | | -1.6 | 4.5 | | 32.4 | | |
Option exercises | | | 1.0 | 1.3 | 1.5 | 0.4 | 0.0 | 0.0 |
Financing costs | | | | | | 0.0 | 0.0 | -0.3 |
Other cash from financing | | | 1.7 | 2.3 | 3.9 | -13.3 | 2.0 | 8.4 |
Cash from financing | | | -1.0 | 5.5 | 2.4 | 18.8 | 2.0 | 8.6 |
|
Free cash flow | | | 7.2 | 8.9 | -9.8 | -3.0 | -2.2 | -5.7 |
Per share (diluted) | | | $0.61 | $0.75 | ($0.93) | ($0.49) | ($1.38) | ($3.64) |
|
Cash paid for interest | | | | | | 1.2 | 1.2 | 0.4 |
Cash paid for income taxes | | | | 0.1 | 0.1 | | | |