Short-term investments |
12 Months Ended |
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Dec. 31, 2021 | |
Cash and Cash Equivalents [Abstract] | |
Short-term investments [Text Block] |
4. Short-term investments As at December 31, 2021, short-term investments consisted of investments in mutual funds of $6 million (2020 - $1 million (CAD$1.3 million)) and are with a Canadian financial institution having a high credit rating. |