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Interim Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Income Statement [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Research and development expenses, net | $ 623 |  | $ 339 |  | $ 1,753 |  | $ 900 |  | $ 1,100 |  | $ 901 |
General and administrative expenses | 1,130 |  | 896 |  | 3,407 |  | 2,830 |  | 4,167 |  | 8,734 |
Operating loss | (1,753) |  | (1,235) |  | (5,160) |  | (3,730) |  | (5,267) |  | (9,635) |
Financing income (expenses), net | 4 |  | 48 |  | 49 |  | (2,272) |  | 2,322 |  | 28 |
Net loss | $ (1,749) |  | $ (1,187) |  | $ (5,111) |  | $ (6,002) |  | $ (7,589) |  | $ (9,663) |
Net loss per share, basic and diluted | $ (0.58) | [1] | $ (0.45) | [1] | $ (1.69) | [1] | $ (2.25) | [1] | $ (2.67) | [2] | $ (5.94) | [2]
Weighted-average number of common shares outstanding, basic and diluted | 2,947,633 | [1] | 2,383,327 | [1] | 2,876,020 | [1] | 2,061,331 | [1] | 2,201,992 | [3] | 963,047 | [3]
[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 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.
[3] | 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.

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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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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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