Other Payables and Accruals (Details) - HKD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Other Payables And Accruals [Line Items] | ||
| Accrued salaries, wages and bonus | $ 58 | $ 372 |
| Accrued audit and professional fees | 977 | 1,143 |
| Accrued sundries expenses | 43 | 1,194 |
| Other payables | 3,612 | 3,429 |
| Other Accrued Liabilities, Current | $ 4,690 | $ 6,138 |