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Related party disclosures (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Related party disclosures [Line Items] |  |
Tax ID | Total | Foreign
Currency |  | US$
Current payables to related parties | $ 475 | $ 9
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign | Foreign
Nature | Joint venture | Joint venture
Country of origin | China | China
Currency |  | US$
Covalent Lithium Pty Ltd [Member] |  |
Related party disclosures [Line Items] |  |
Tax ID | Foreign |
Nature | Joint venture | Joint venture
Country of origin | Australia | Australia
Currency | Australian dollar | Australian dollar
Current payables to related parties | $ 232 | $ 9
SQM Star Qingdao Corp Nutrition Co., Ltd. [Member] |  |
Related party disclosures [Line Items] |  |
Nature | Joint venture |
Country of origin | China |
Currency | USD |
Current payables to related parties | $ 243 | $ 0

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