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Short-term investments (Narrative) (Details) - CAD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Short Term Investments [Line Items]
Short-term investment	$ 20,704	$ 10,000
Secured senior loan [Member]
Short Term Investments [Line Items]
Short-term investment	$ 15,900	$ 10,000
Interest rate, investment	7.00%
Notes receivable [Member]
Short Term Investments [Line Items]
Short-term investment	$ 4,800
Notes receivable [Member] | Minimum [Member]
Short Term Investments [Line Items]
Interest rate, investment	10.50%
Notes receivable [Member] | Maximum [Member]
Short Term Investments [Line Items]
Interest rate, investment	12.00%

X

- Definition

The amount of current investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

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- Definition

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+ References

No definition available.

+ Details

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