Description of business - Additional Information (Detail) - USD ($) |
6 Months Ended | |||||
|---|---|---|---|---|---|---|
Jun. 30, 2020 |
Mar. 31, 2020 |
Dec. 31, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| Description Of Business [Abstract] | ||||||
| Shareholders' deficiency | $ 2,083,970 | |||||
| Comprehensive income (loss) | 1,911,242 | |||||
| Working capital deficiency | 21,746,851 | |||||
| Cash and cash equivalents | $ 28,689,757 | $ 1,760,219 | $ 814,492 | $ 10,320,183 | $ 23,610,440 | $ 11,471,243 |
| X | ||||||||||
- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The increase (decrease) in working capital. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Comprehensive income (loss). No definition available.
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- Definition Description of business [abstract]. No definition available.
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- Definition Increase (decrease) in shareholder's equity. No definition available.
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