| Period ending | 31/12/2018 | 31/12/2017 | 31/12/2016 | 31/12/2015 |
| Net income | 6,220,000 | 2,394,000 | 3,920,000 | 4,442,000 |
| Operating activities, cash flow provided by or used in |
| Depreciation | 4,520,000 | 4,616,000 | 5,244,000 | 6,201,000 |
| Adjustments to net income | 1,735,000 | 4,458,000 | 3,813,000 | 2,163,000 |
| Changes in accounts receivable | -418,000 | 297,000 | -619,000 | -480,000 |
| Changes in liabilities | 230,000 | 254,000 | 278,000 | -37,000 |
| Changes in inventory | -911,000 | -145,000 | 206,000 | 805,000 |
| Changes in other operating activities | -1,281,000 | -2,132,000 | -2,590,000 | -290,000 |
| Total cash flow from operating activities | 10,922,000 | 6,451,000 | 10,376,000 | 12,538,000 |
| Investment activities, cash flow provided by or used in |
| Capital expenditure | -2,615,000 | -1,888,000 | -1,614,000 | -1,283,000 |
| Investments | 7,258,000 | 4,925,000 | -1,298,000 | 3,732,000 |
| Other cash flow from investment activities | 102,000 | 38,000 | 482,000 | 221,000 |
| Total cash flow from investment activities | 4,314,000 | 2,679,000 | -3,210,000 | -4,758,000 |
| Financing activities, cash flow provided by or used in |
| Dividends paid | -5,172,000 | -5,167,000 | -5,124,000 | -5,117,000 |
| Sale purchase of stock | - | - | - | - |
| Net borrowings | 837,000 | -1,129,000 | -1,307,000 | 3,492,000 |
| Other cash flow from financing activities | -325,000 | -195,000 | -118,000 | -61,000 |
| Total cash flow from financing activities | -13,160,000 | -10,006,000 | -9,044,000 | -5,387,000 |
| Effect of exchange rate changes | -205,000 | 457,000 | -131,000 | -1,310,000 |
| Change in cash and cash equivalents | 1,871,000 | -419,000 | -2,009,000 | 1,083,000 |