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DISPOSITION OF DISCONTINUED OPERATIONS - BRALORNE GOLD MINES LTD (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure of detailed information about property, plant and equipment [line items]      
Revenue from mining operations $ 31,746 $ 34,116 $ 33,359
Cost of sales 32,016 27,850 22,106
Mine operating income (loss) (270) 6,266 11,253
Operating expenses (income) 286 359 464
Accretion of reclamation provision 1,338    
Other items 103 (245) (106)
Net loss before income taxes (2,968) 2,064 5,436
Income taxes 633 (407) (2,771)
Net loss from discontinued operations and on disposal (31,461) 1,626 2,522
Continuing Operations To Discontinued Operations [Member]      
Disclosure of detailed information about property, plant and equipment [line items]      
Revenue from mining operations
Cost of sales
Mine operating income (loss)
Operating expenses (income) 16 (45) (14)
Accretion of reclamation provision 217 256 154
Gain on sale of assets 2 (175)
Other items 1 (5) 3
Loss on disposition 28,890
Net loss before income taxes (29,126) (31) (143)
Income taxes
Net loss from discontinued operations and on disposal $ (29,126) $ (31) $ (143)