| Quarterly Key Indicators | Q2/2023 | Q1/2023 | Q4/2022 | Q3/2022 | Q2/2022 |
| Net sales, M€ | 9.5 | 8.9 | 10.1 | 10.4 | 9.6 |
| Operating result before depreciation (EBITDA), M€ | 0.9 | 0.8 | 1.2 | 1.9 | 2.1 |
| Operating result (EBIT), M€ | 0.4 | 0.3 | 0.7 | 1.4 | 1.6 |
| of net sales, % | 4% | 4% | 7% | 13% | 17% |
| Profit/loss before taxes, M€ | 0.3 | 0.3 | 0.7 | 1.3 | 1.6 |
| of net sales, % | 4% | 3% | 7% | 13% | 17% |
| Net profit/loss for the period, M€ | 0.3 | 0.3 | -0.1 | 1.3 | 1.6 |
| of net sales, % | 4% | 3% | -1% | 13% | 17% |
| Received orders | 5.4 | 13.7 | 4.8 | 9.5 | 9.6 |
| Order book at the end of period | 15.0 | 19.1 | 14.3 | 19.6 | 20.5 |
| Equity ratio, % | 68% | 73% | 69% | 68% | 67% |
| Gearing, % | 15% | 2% | 8% | 5% | 11% |
| Gross investments in fixed assets, M€ | 0.8 | 0.4 | 0.7 | 0.6 | 0.3 |
| of net sales, % | 8% | 4% | 7% | 6% | 4% |
| Personnel, end of the quarter | 167 | 156 | 156 | 144 | 148 |
| Earnings/share (EPS), € | 0.05 | 0.04 | -0.02 | 0.20 | 0.23 |
| Equity/share, € | 3.08 | 3.24 | 3.19 | 3.20 | 3.00 |
