Share Capital - Summary of Calculation of Basic Earnings (loss) Per Share (Detail) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net earnings, Basic	$ 3,771,163	$ 4,679,921
Net earnings, Diluted	$ 3,771,163	$ 4,679,921
Weighted average number of common shares outstanding, Basic	71,536,310	72,582,733
Weighted average number of common shares outstanding, Diluted	72,697,539	74,085,172
Earnings per common share, Basic	$ 0.053	$ 0.064
Earnings per common share, Diluted	$ 0.052	$ 0.063
Options [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted average number of common shares outstanding, Basic	421,249	1,122,708
Share units [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted average number of common shares outstanding, Basic	739,980	379,731

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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