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Debentures (Details 1)
$ in Thousands
Dec. 31, 2020
CAD ($)
Debentures Details1 [Line Items]  
2021 $ 2,054
2022 2,183
2023 19,971
2024 19,234
Long-term debentures due and payable 43,442
Principal component of quarterly payment [member]  
Debentures Details1 [Line Items]  
2021 2,054
2022 2,183
2023 3,294
2024 941
Long-term debentures due and payable 8,472
Principal due on maturity [member]  
Debentures Details1 [Line Items]  
2023 16,677
2024 18,293
Long-term debentures due and payable $ 34,970