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Common Shares - ATM Agreement (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 security | Jun. 30, 2020 USD ($) | Sep. 30, 2020 USD ($) shares | Sep. 30, 2020 USD ($) shares | Sep. 30, 2019 USD ($)
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 1,436,000 |
At-The-Market Offering Agreement [Member] | H. C. Wainwright And Co., LLC [Member] |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Threshold of aggregate sales proceeds |  | $ 10,000,000 |  |  |
Stock Issued During Period, Shares, New Issues | shares |  |  | 509,315 | 1,541,134 |
Proceeds from Issuance of Common Stock |  |  | $ 629,000 | $ 1,436,000 |
Offers or sales of common shares under Agreement to be made in Canada | security | 0 |  |  |  |
Offers or sales of common shares |  |  |  |  | $ 0

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