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Common Shares - Summary Of Deferred Share Units Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	May 31, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense		$ 148	$ 271	$ 615	$ 855
Deferred Stock Units (DSU) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, Number of units (in shares)	366,000			366,000
Unvested, Number of units, end of period (in shares)		366,000		366,000
Granted, Weighted average fair value (in dollars per share)				$ 0.57
Unvested, weighted average fair value, end of year (in dollars per share)		$ 0.57		$ 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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-Publisher FASB
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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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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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