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Common Shares - Summary Of Deferred Share Units Activity (Details) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended
	Mar. 31, 2020 USD ($) shares	May 31, 2019 USD ($) shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense | $			$ 913	$ 765
Deferred Stock Units (DSU) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of common shares issues for each DSU (at end of board members' team).		1
Unvested, Number of units, beginning of period (in shares) | shares			366,000	0
Granted, Number of units (in shares) | shares	360,000	366,000	360,000	366,000
Unvested, Number of units, end of period (in shares) | shares			726,000	366,000
Unvested, weighted average fair value, beginning of year (in dollars per share) | $ / shares			$ 0.57	$ 0
Granted, Weighted average fair value (in dollars per share) | $ / shares			0.58	0.57
Unvested, weighted average fair value, end of year (in dollars per share) | $ / shares			$ 0.57	$ 0.57
Allocated Share-based Compensation Expense | $	$ 209	$ 209	$ 209	$ 209

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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