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Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Current assets    
Cash and cash equivalents $ 14,775 $ 18,574
Marketable securities 27,168 1,034
Trade and other receivables 962 1,253
Inventories 15,238 16,550
Prepaid expenses and other assets 1,105 780
Mineral properties held for sale 0 5,000
Total current assets 59,248 43,191
Notes receivable and other 1,823 903
Plant and equipment, net 30,616 33,076
Mineral properties, net 83,539 83,539
Intangible assets, net 0 2,502
Restricted cash 21,555 22,127
Total assets 196,781 185,338
Current liabilities    
Accounts payable and accrued liabilities 5,516 6,449
Current portion of asset retirement obligation 32 32
Current portion of loans and borrowings 0 3,414
Deferred revenue 2,434 0
Total current liabilities 7,982 9,895
Warrant liabilities 7,396 3,376
Asset retirement obligation 19,399 18,248
Loans and borrowings 17,251 24,077
Total liabilities 52,028 55,596
Equity    
Share capital Common shares, without par value, unlimited shares authorized; shares issued and outstanding 71,962,817 at September 30, 2017 and 66,205,153 at December 31, 2016 462,319 430,383
Accumulated deficit (324,298) (306,813)
Accumulated other comprehensive income 2,946 2,289
Total shareholders' equity 140,967 125,859
Non-controlling interests 3,786 3,883
Total equity 144,753 129,742
Total liabilities and equity 196,781 185,338
Commitments and contingencies (Note 12)