Accounting policies (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of consolidated subsidiaries | The following entities were consolidated as of December 31, 2017:
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| Schedule of fair value of financial assets and liabilities | The following table sets forth by level within the fair value hierarchy our financial assets and liabilities that were accounted for at fair value on a recurring basis:
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| Schedule of changes in financial liabilities | A summary of changes in financial liabilities for the years ended December 31, 2017 and 2016 was as follows:
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| Schedule of Assumptions Used to Value Convertible Notes | The fair value of the outstanding warrants was calculated using the Monte-Carlo simulation Model with the following assumptions at inception and on subsequent valuation date:
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