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Basic and Diluted Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Jun. 30, 2018 | [1] | Jun. 30, 2017 | [1] | Sep. 30, 2018 | Sep. 30, 2017 | [1] | Dec. 31, 2017 | Dec. 31, 2016
Earnings Per Share [Abstract] |  |  |  |  |  |  |  |  |
Net loss attributable to shareholders of the company |  |  | $ (5,111) |  | $ (6,002) | $ 7,589 | [2] | $ 9,663 | [2]
Net loss attributable to shareholders of preferred shares |  |  | (226) |  | (1,442) | (1,582) | [2] | (3,954) | [2]
Net loss used in the calculation of basic net loss per share |  |  | $ (4,885) |  | $ (4,560) | $ 6,007 | [2] | $ 5,709 | [2]
Net loss per share | $ (0.58) | $ (0.45) | $ (1.69) | [1] | $ (2.25) | $ (2.67) | [3] | $ (5.94) | [3]
Weighted average number of common shares | 2,947,633 | 2,383,327 | 2,876,020 | [1] | 2,061,331 | 2,201,992 | [2] | 963,047 | [2]
[1] | September 30, 2017 share data represents the number of shares adjusted to retroactively reflect the 1:15 reverse stock split effected on September 4, 2018.
[2] | December 31 2017 and 2016 shares data represents the number of shares adjusted to retroactively reflect the 1:15 Reverse Split effected on September 4, 2018.
[3] | December 31 2017 and 2016 share data represents the number of shares adjusted to retroactively reflect the 1:15 reverse Stock Split effected on September 4, 2018, as discussed in Note 1.

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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=109260490&loc=d3e1337-109256 + Details
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