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v3.23.1

Segment information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Revenue | $ 14,949 | $ 21,388 | $ 13,357
Operating income / (loss) | 114 | 771 | (272)
Depreciation | 33 | 38 | 49
Capital expenditures, gross | 7 | 4 | 11
Assets | 19,363 | 21,250 |
Liabilities | 4,557 | 6,449 |
Trading and Manufacturing |  |  |
Revenue | 9,332 | 9,619 | 9,476
Operating income / (loss) | (246) | 130 | 941
Depreciation | 28 | 32 | 39
Capital expenditures, gross | 2 | 1 | 2
Assets | 13,637 | 7,969 |
Liabilities | 1,300 | 3,428 |
Engineering |  |  |
Revenue | 5,617 | 11,769 | 3,881
Operating income / (loss) | 590 | 846 | (1,027)
Depreciation | 5 | 6 | 10
Capital expenditures, gross | 5 | 3 | 9
Assets | 5,726 | 13,281 |
Liabilities | 3,257 | 3,021 |
Unallocated Corporate Expenses |  |  |
Operating income / (loss) | $ (230) | $ (205) | $ (186)

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