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Revenue from contracts with customers (Tables) | 12 Months Ended
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Dec. 31, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of revenue |
|  | 2018 |
|  | US$’000 |
Fixed price |  |  | 20,104 |
Excess of billings over costs |
|  | 2018 |  |  | 2017 |
|  | US$’000 |  |  | US$’000 |
Costs incurred and estimated earnings on uncompleted contracts |  |  | 6,354 |  |  |  | 6,342 |
Billings on uncompleted contracts |  |  | (6,825 | ) |  |  | (7,868 | )
Excess of billings over costs incurred and estimated earnings |  |  | (471 | ) |  |  | (1,526 | )
|  | 2018 |  |  | 2017 |
|  | US$’000 |  |  | US$’000 |
Costs and estimated earnings in excess of billings on uncompleted contracts |  |  | 899 |  |  |  | 194 |
Billings in excess of costs and estimated earnings on uncompleted contracts |  |  | (1,370 | ) |  |  | (1,720 | )
Net amount of billings in excess of costs and estimated earnings on uncompleted contracts |  |  | (471 | ) |  |  | (1,526 | )

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- Definition Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings. + References No definition available. + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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