| In millions, except per share items | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 | Jun-30-13 | Mar-31-13 | Dec-31-12 | Sep-30-12 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Net income | 4.9 | 6.9 | 7.3 | 5.7 | -2.6 | -22.5 | -32.6 | -37.4 |
| Depreciation and amortization [+] | 1.5 | 1.5 | | -3.0 | -1.0 | 1.0 | 3.0 | 11.7 |
| Depreciation | 1.5 | 1.5 | | -3.0 | 0.6 | 1.4 | 2.3 | 3.1 |
| Amortization of intangible assets | | | | | | | 5.3 | 8.6 |
| Stock-based compensation | 2.2 | 2.3 | 2.4 | 2.2 | 2.7 | 3.1 | 3.0 | 2.5 |
| Change in working capital [+] | 0.0 | -6.4 | -12.0 | -13.5 | -6.7 | -4.4 | 2.8 | 9.3 |
| Accounts receivable | -0.9 | -0.7 | -2.2 | 2.1 | 3.4 | 0.9 | 0.4 | -1.3 |
| Inventories | -2.1 | -0.8 | -0.4 | -0.5 | -2.0 | -3.6 | -4.0 | 0.2 |
| Other current assets | -1.1 | -2.0 | -2.1 | -1.9 | -0.6 | 0.7 | | 1.0 |
| Accounts payable | 4.6 | -0.9 | -4.2 | -9.9 | -6.2 | -2.6 | 3.6 | 8.1 |
| Other | -0.6 | -2.0 | -3.0 | -3.3 | -1.3 | 0.2 | 3.2 | 1.3 |
| Other operating activities | 0.8 | 1.2 | 1.3 | 5.8 | 4.0 | 14.1 | 14.3 | 8.2 |
| Cash from operations | 9.3 | 5.4 | 0.6 | -2.8 | -3.6 | -8.7 | -9.5 | -5.8 |
| |
| Capital expenditures | -2.5 | -1.2 | -1.1 | -1.2 | -1.3 | -1.7 | -2.6 | -2.5 |
| Purchases of property and equipment | -2.5 | -1.2 | -1.1 | -1.2 | -1.3 | -1.7 | -2.6 | -2.5 |
| Purchases of short-term investments, net | | -7.7 | -7.4 | -2.1 | 0.8 | 2.2 | 5.5 | 5.0 |
| Purchases of short-term investments | -14.2 | -16.0 | -14.4 | -9.7 | -7.2 | -4.9 | -5.6 | |
| Sales of short-term investments | 8.8 | 8.3 | 7.0 | 7.6 | 8.0 | 7.1 | 11.1 | 10.6 |
| Other cash from investing | | | 2.0 | | | | 10.4 | 9.5 |
| Cash from investing | -5.9 | -7.0 | -6.5 | -1.9 | 9.9 | 11.0 | 13.4 | 12.1 |
| |
| Option exercises | 2.9 | 3.7 | 4.4 | 4.1 | 2.9 | 2.0 | | 1.3 |
| Other cash from financing | 1.0 | 1.9 | 3.0 | 6.4 | 3.7 | 2.5 | 2.7 | -0.1 |
| Cash from financing | -1.9 | -1.8 | -1.4 | 2.3 | 0.9 | 0.4 | 1.7 | -1.4 |
| |
| Free cash flow | 6.8 | 4.2 | -0.4 | -4.0 | -4.9 | -10.4 | -12.0 | -8.3 |
| Per share (diluted) | $0.15 | $0.09 | ($0.01) | ($0.09) | ($0.11) | ($0.23) | ($0.27) | ($0.18) |
| |
| Cash paid for interest | 0.4 | 0.4 | 0.4 | 0.4 | 0.3 | 0.2 | | 0.3 |