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Common Shares - ATM Agreement (Details) - At-The-Market Offering Agreement [Member] - H. C. Wainwright And Co., LLC [Member] - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Subsidiary, Sale of Stock [Line Items] |  |  |
Threshold of aggregate sales proceeds | $ 10,000 |  |
Offers or sales of common shares under Agreement to be made in Canada | $ 0 |  |
Commission rate (as a percent) | 2.00% |  |
Reimbursement of certain legal expenses | $ 50 |  |
Additional accounting, legal and regulatory costs incurred | $ 156 |  |
Offers or sales of common shares |  | $ 0 | $ 0

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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 The amount of additional accounting, legal and regulatory costs incurred relating to at-the-market agreement by the entity. + References No definition available. + Details
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- Definition The percentage of commission rate per agreement of the gross sales price per share of common stock sold. + References No definition available. + Details
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- Definition The amount for offers or sales of common shares under the at-the-market agreement. + References No definition available. + Details
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- Definition The amount for offers or sales of common shares under the at-the-market agreement that will be made in Canada. + References No definition available. + Details
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- Definition The threshold for aggregate sales proceeds relating to an at-the-market offering agreement of the entity. + References No definition available. + Details
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- Details
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- Details
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