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Gold Prepay Loan (Tables)
12 Months Ended
Dec. 31, 2020
Financial Instruments [Abstract]  
Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments
For the year ended December 31, 2020For the year ended December 31, 2019
$$
Opening balance6,842 17,380 
Increase in principal of gold prepay loan15,500 — 
Gold deliveries(11,674)(13,996)
Interests (965)(832)
Change in fair value5,454 4,290 
Closing balance15,157 6,842 
Disclosure of detailed information about financial assets
Based on the gold delivery schedule, current and non-current portions of the gold prepay loan are as follows:
December 31, 2020December 31, 2019
$$
Total15,157 6,842 
Less: current portion(6,920)(6,842)
Non-current portion8,237 —