v3.21.2

Property, plant and equipment (Parenthetical) (Details) $ in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 HKD ($) | Dec. 31, 2019 HKD ($) | Dec. 31, 2020 HKD ($) | Dec. 31, 2019 HKD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Long-term bank loan |  |  |  |  | $ 6,040 | $ 6,255
Luk Lai Ching Kimmy |  |  |  |  |  |
Shareholding percentage held | 4.20% | 5.30% | 4.20% | 5.27% |  |
Asset Pledged as Collateral [Member] | OCBC Wing Hang Bank Limited [Member] |  |  |  |  |  |
Long-term bank loan | $ 50,000 | $ 50,000 | $ 50,000 | $ 50,000 | 6,410 | 6,410
Asset Pledged as Collateral [Member] | United Overseas Bank Limited [Member] |  |  |  |  |  |
Long-term bank loan | $ 127,540 | $ 127,540 | $ 127,540 | $ 127,540 | 16,350 | 16,350
Leasehold land and buildings | OCBC Wing Hang Bank Limited [Member] |  |  |  |  |  |
Carrying value |  |  |  |  | 47,670 | 50,240
Leasehold land and buildings | United Overseas Bank Limited [Member] |  |  |  |  |  |
Carrying value |  |  |  |  | $ 4,370 | $ 4,720

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