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Common Shares - Summary Of Deferred Share Units Activity (Details) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2019 USD ($) shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense | $		$ 765	$ 982
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
Granted, Number of units (in shares) | shares	366,000	366,000
Unvested, Number of units, end of period (in shares) | shares		366,000
Granted, Weighted average fair value (in dollars per share) | $ / shares		$ 0.57
Unvested, weighted average fair value, end of year (in dollars per share) | $ / shares		$ 0.57
Allocated Share-based Compensation Expense | $	$ 209	$ 209

X

- Definition

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

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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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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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