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Revenue (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2020
Revenue |
Schedule of net product sales | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30,
​ |  | 2019 |  | 2020
​ |  | $ |  | $
​ | ​ | (Unaudited) | ​ | ​
Product revenue - gross | ​ | 3,420 | ​ | 20,415
Less: Rebate and sales return | ​ | — | ​ | (1,202)
Product revenue - net | ​ | 3,420 | ​ | 19,213
Schedule of disaggregation of net revenue | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Six months ended June 30,
​ |  | 2019 |  | 2020
​ |  | $ |  | $
​ | ​ | (Unaudited) | ​ | ​
ZEJULA | ​ | 1,925 | ​ | 13,791
OPTUNE | ​ | 1,495 | ​ | 5,422
Total product revenue - net | ​ | 3,420 | ​ | 19,213

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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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- Definition Tabular disclosure of net revenue. + References No definition available. + Details
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