Accounts Payable and Accrued Liabilities |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accounts Payable And Accrued Liabilities Current [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Accounts Payable and Accrued Liabilities |
5. Accounts Payable and Accrued Liabilities
The components of Accounts payable and accrued liabilities are as follows:
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