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SHARE CAPITAL (Schedule of Effect of Share-based Compensation Statements of Operations) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based compensation | $ 1,217 | $ 2,552 | $ 4,654
Research and Development Expense [Member] |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based compensation | 431 | 1,028 | 2,708
General and Administrative Expense [Member] |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |
Share-based compensation | $ 786 | $ 1,524 | $ 1,946

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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