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Quarterly Financial Data (unaudited) | 12 Months Ended
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Dec. 31, 2016
Quarterly Financial Data [Abstract] |
Quarterly Financial Information [Text Block] |
15. | Quarterly Financial Data (unaudited)
|  | Three month ended |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
|  | 2016 |  |  | 2016 |  |  | 2016 |  |  | 2016 |
|  | U.S. dollars in thousands, except for per share data |
Loss from operations |  | $ | (4,492) |  |  | $ | (3,722) |  |  | $ | (4,578) |  |  | $ | (3,074) |
Net loss |  |  | (4,594) |  |  |  | (3,685) |  |  |  | (4,670) |  |  |  | (3,073) |
Net loss attributable to Ordinary shareholders |  |  | (4,594) |  |  |  | (3,685) |  |  |  | (4,670) |  |  |  | (3,073) |
Net loss per share attributable to Ordinary shareholders - basic and diluted |  | $ | (0.32) |  |  | $ | (0.22) |  |  | $ | (0.28) |  |  | $ | (0.19) |
|  | Three month ended |
|  | March 31, |  |  | June 30, |  |  | September 30, |  |  | December 31, |
|  | 2015 |  |  | 2015 |  |  | 2015 |  |  | 2015 |
|  | U.S. dollars in thousands, except for per share data |
Loss from operations |  | $ | (3,318) |  |  | $ | (3,738) |  |  | $ | (3,587) |  |  | $ | (4,833) |
Net loss |  |  | (3,299) |  |  |  | (3,686) |  |  |  | (3,551) |  |  |  | (4,829) |
Net loss attributable to Ordinary shareholders |  |  | (3,299) |  |  |  | (3,686) |  |  |  | (3,551) |  |  |  | (4,829) |
Net loss per share attributable to Ordinary shareholders - basic and diluted |  | $ | (0.23) |  |  | $ | (0.26) |  |  | $ | (0.25) |  |  | $ | (0.34) |

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1570-108306 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e765-108305 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68064558&loc=d3e725-108305 + Details
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