| In millions, except per share items | Sep-30-22 | Sep-30-21 | Sep-30-20 | Sep-30-19 | Sep-30-18 | Sep-30-17 | Sep-30-16 | Sep-30-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | -9.6 | -0.7 | 9.2 | -7.5 | -7.2 | -14.2 | -11.3 | -2.9 |
| Depreciation and amortization [+] | 6.3 | 7.7 | 7.4 | 7.5 | 8.5 | 10.0 | 10.8 | 8.3 |
| Depreciation | 6.0 | 6.7 | 5.9 | 5.9 | 6.8 | 7.8 | 8.2 | 6.0 |
| Amortization of intangible assets | 0.3 | 1.0 | 1.5 | 1.6 | 1.7 | 2.2 | 2.6 | 2.2 |
| Asset impairment charges | | | | 8.3 | | | 4.2 | |
| Deferred taxes | 0.0 | -1.3 | -0.4 | -0.6 | -0.8 | 0.2 | 0.9 | -1.1 |
| Change in working capital [+] | 3.3 | 0.0 | -9.0 | 5.2 | -0.2 | 10.3 | 8.6 | -7.0 |
| Accounts receivable | 2.6 | 3.2 | 0.3 | 4.5 | -2.2 | -0.3 | 10.9 | -3.3 |
| Inventories | 0.4 | 2.0 | -4.7 | 1.0 | 1.5 | 8.1 | -0.3 | -3.6 |
| Accounts payable | 0.8 | -4.4 | -7.1 | 2.0 | 2.7 | -2.3 | 0.4 | 1.9 |
| Accrued expenses | -0.4 | -1.3 | 3.2 | 0.7 | -0.8 | 1.4 | -3.2 | -1.1 |
| Other | -0.1 | 0.5 | -0.8 | -3.1 | -1.4 | 3.4 | 0.8 | -0.9 |
| Other operating activities | 0.3 | -1.8 | -6.7 | -7.3 | 1.1 | 5.7 | -0.7 | |
| Cash from operations | 0.3 | 3.9 | 0.4 | 5.7 | 1.3 | 12.0 | 12.3 | -1.3 |
| |
| Capital expenditures [+] | -3.2 | -5.0 | -9.0 | -9.4 | -2.8 | -2.3 | -2.3 | -8.8 |
| Purchases of property and equipment | -3.2 | -5.0 | -9.0 | -9.4 | -2.8 | -2.3 | -2.3 | -8.8 |
| Sales of property and equipment | 0.0 | | | 0.3 | 3.5 | 0.1 | | 0.0 |
| Acquisitions | | | | | | | 0.3 | -17.0 |
| Other cash from investing | | 4.1 | 7.8 | 8.4 | | | | |
| Cash from investing | -3.2 | -0.9 | -1.2 | -0.8 | 0.7 | -2.3 | -2.1 | -25.8 |
| |
| Cash dividends paid | | | | | | | | -1.1 |
| Repurchase of common stock, net | | | | -0.1 | | | | |
| Financing costs | | 0.0 | | -0.1 | -0.3 | -0.6 | | -0.7 |
| Other cash from financing | 3.7 | -3.2 | 0.8 | -5.9 | -2.4 | -9.4 | -10.4 | 22.9 |
| Cash from financing | 3.7 | -3.1 | 0.8 | -5.9 | -2.1 | -8.8 | -10.4 | 22.5 |
| |
| Free cash flow | -2.9 | -1.1 | -8.6 | -3.7 | -1.5 | 9.7 | 9.9 | -10.1 |
| Per share (diluted) | ($0.50) | ($0.19) | ($1.48) | ($0.67) | ($0.28) | $1.76 | $1.81 | ($1.85) |
| |
| Cash paid for interest | -0.6 | -0.4 | -0.7 | -1.0 | -1.4 | -1.6 | -1.4 | -0.6 |
| Cash paid for income taxes | 0.0 | -0.1 | -0.1 | -0.1 | -0.1 | 1.3 | 2.9 | -0.7 |