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SEGMENTED REPORTING (Tables)
 12 Months Ended
Dec. 31, 2018
Disclosure of Segmented Reporting [Abstract]  
Disclosure And Detailed Information About Revenue From Segments [Text Block]
As at and for the year ended December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
GK Mine
 
 
KNP*
 
 
Total
 
 
 
 
 
 
 
 
 
 
 
Sales
 
$
310,969
 
 
$
-
 
 
$
310,969
 
Cost of sales:
 
 
 
 
 
 
 
 
 
 
 
 
Production costs
 
 
117,908
 
 
 
-
 
 
 
117,908
 
Cost of acquired diamonds
 
 
32,611
 
 
 
-
 
 
 
32,611
 
Depreciation and depletion
 
 
79,419
 
 
 
-
 
 
 
79,419
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Earnings from mine operations
 
 
81,031
 
 
 
-
 
 
 
81,031
 
Exploration and evaluation expenses
 
 
3,511
 
 
 
4,693
 
 
 
8,204
 
Selling, general and administrative expenses
 
 
14,391
 
 
 
48
 
 
 
14,439
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating income (loss)
 
 
63,129
 
 
 
(4,741
)
 
 
58,388
 
Net finance (expenses) income
 
 
(40,567
)
 
 
3
 
 
 
(40,564
)
Derivative losses
 
 
(247
)
 
 
-
 
 
 
(247
)
Foreign exchange losses
 
 
(32,473
)
 
 
(1
)
 
 
(32,474
)
Other income
 
 
81
 
 
 
-
 
 
 
81
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net loss before taxes
 
$
(10,077
)
 
$
(4,739
)
 
$
(14,816
)
 
 
 
 
 
 
 
 
 
 
 
 
 
Total assets
 
$
810,901
 
 
$
168,976
 
 
$
979,877
 
Total liabilities
 
$
515,246
 
 
$
516
 
 
$
515,762
 
 
*From the date of acquisition April 13, 2018 (Note 6)