Contributed surplus - Fair value of share option awards (Details)					12 Months Ended
Feb. 03, 2020 Y $ / shares	Jun. 28, 2019 Y $ / shares	May 09, 2019 Y $ / shares	Mar. 27, 2019 Y $ / shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Calculation of fair value and assumptions
Fair value of stock options granted, per share \| $ / shares	$ 1.10	$ 1.13	$ 1.46	$ 1.44
Volatility assumption	46.12%	45.74%	46.48%	47.88%
Remaining life assumption \| Y	10	4.5	10	10
Expected dividend yield assumption	0.00%	0.00%	0.00%	0.00%
Forfeiture rate assumption	0.00%	0.00%	0.00%	0.00%
Annual risk-free interest rate assumption	2.02%	1.46%	1.68%	1.62%
Unrecognized compensation cost
Compensation cost not yet recognized \| $					$ 530,357	$ 292,877
Remaining average vesting period for unrecognized compensation					6 months 22 days	5 months 9 days

Calculation of fair value and assumptions abstract

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- Definition

The expected forfeiture rate used to calculate the fair value of the share options granted.

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No definition available.

+ Details

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans

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No definition available.

+ Details

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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

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No definition available.

+ Details

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- Definition

Unrecognized compensation cost abstract

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No definition available.

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- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2020-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2020-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2020-01-01

+ Details

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- Definition

The option life of share options granted.

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- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

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- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

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+ Details

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- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

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+ Details

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