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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Current assets    
Cash and cash equivalents $ 14,640 $ 18,574
Available-for-sale Securities, Debt Securities 27,061 1,034
Trade and other receivables, net 1,191 1,253
Inventories, net 16,550 16,550
Prepaid expenses and other assets 1,411 780
Mineral properties held for sale 0 5,000
Total current assets 60,853 43,191
Investments accounted for at fair value 1,107 903
Inventories, net 1,772 0
Plant and equipment, net 29,843 33,076
Mineral properties, net 83,539 83,539
Intangible assets, net 0 2,502
Restricted cash 19,652 22,127
Total assets 196,766 185,338
Current liabilities    
Accounts payable and accrued liabilities 7,921 6,449
Current portion of Warrant liabilities 662 0
Current portion of asset retirement obligation 270 32
Current portion of loans and borrowings 0 3,414
Total current liabilities 8,853 9,895
Warrant liabilities 5,621 3,376
Deferred revenue 2,724 2,474
Asset retirement obligation 18,834 18,248
Loans and borrowings 15,880 24,077
Total liabilities 51,912 58,070
Equity    
Share capital Common shares, without par value, unlimited shares authorized; shares issued and outstanding 74,366,824 at December 31, 2017 and 66,205,153 at December 31, 2016 469,303 430,383
Accumulated deficit (332,058) (309,287)
Accumulated other comprehensive income 3,843 2,289
Total shareholders' equity 141,088 123,385
Non-controlling interests 3,766 3,883
Total equity 144,854 127,268
Total liabilities and equity 196,766 185,338
Commitments and contingencies (Note 18)