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22. SUPPLEMENTAL FINANCIAL INFORMATION (Tables)
 12 Months Ended
Dec. 31, 2017
Supplemental Financial Information Tables  
Operating expenses for continuing operations
(in thousands)           2017   2016
               
Cost of goods and services sold:                
Operating Overheads:                
Mining, other development expense         $ (813) $ (689)
Milling, conversion expense           (2,993)   (2,414)
Less absorption:                
-Mineral properties           39   39
Cost of services           (6,528)   (6,957)
Inventory-non cash adjustments           (119)   -
Cost of goods and services sold           (10,414)   (10,021)
Reclamation asset amortization           (146)   (140)
Reclamation liability adjustments (note 15)           (56)   (461)
Operating expenses         $ (10,616) $ (10,622)
Other income (expense) for continuing operations
(in thousands)           2017   2016
               
Gains (losses) on:                
Disposal of property, plant and equipment         $ 21 $ (162)
Investment fair value through profit (loss)       1,891   1,473
Extinguishment of toll milling contract liability (note 16)       679   -
Other           (381)   (405)
Other income (expense)         $ 2,210 $ 906
Finance income (expense) for continuing operations
(in thousands)           2017   2016
               
Interest income         $ 203 $ 177
Interest expense           (5)   (3)
Accretion expense-reclamation obligations           (999)   (903)
Accretion expense-post-employment benefits           (57)   (82)
Finance expense         $ (858) $ (811)
Depreciation expense
(in thousands)           2017   2016
               
Continuing operations:                
Operating expenses:                
Mining, other development expense         $ (5) $ (13)
Milling, conversion expense           (2,989)   (2,411)
Cost of services           (234)   (268)
Exploration and evaluation           (95)   (60)
General and administrative           (34)   (34)
Discontinued operations           -   (26)
Depreciation expense-gross         $ (3,357) $ (2,812)
Employee benefits expense
(in thousands)           2017   2016
               
Continuing operations:                
Salaries and short-term employee benefits         $ (6,229) $ (6,200)
Share-based compensation           (969)   (341)
Termination benefits           (20)   (46)
Discontinued operations           -   (269)
Employee benefits expense-gross         $ (7,218) $ (6,856)
Change in non-cash working capital items
(in thousands)           2017   2016
                 
Change in non-cash working capital items:                
Trade and other receivables         $ (1,251) $ 2,519
Inventories           (312)   (67)
Prepaid expenses and other assets           (82)   13
Accounts payable and accrued liabilities           495   (724)
Change in non-cash working capital items         $ (1,150) $ 1,741
Supplemental cash flow disclosure
(in thousands)           2017   2016
                 
Supplemental cash flow disclosure:                
Interest paid         $ (5) $ (3)
Income taxes paid           -   -