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v3.20.2

Common Shares - ATM Agreement (Details) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 USD ($) security | Jun. 30, 2020 USD ($) shares | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($)
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Proceeds from Issuance of Common Stock |  |  | $ 807,000 |
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 |  | 1,031,819 |  |
Proceeds from Issuance of Common Stock |  | $ 807,000 |  |
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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