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Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Current assets    
Cash and cash equivalents $ 6,623 $ 18,574
Trade and other receivables 2,233 1,253
Inventories 16,827 16,550
Prepaid expenses and other assets 1,591 1,814
Mineral properties held for sale 5,000 5,000
Total current assets 32,274 43,191
Notes receivable and other 659 903
Plant and equipment, net 32,251 33,076
Mineral properties, net 83,539 83,539
Intangible assets, net 2,502 2,502
Restricted cash 21,572 22,127
Total assets 172,797 185,338
Current liabilities    
Accounts payable and accrued liabilities 5,144 6,449
Current portion of asset retirement obligation 32 32
Current portion of loans and borrowings 3,463 3,414
Total current liabilities 8,639 9,895
Warrant liabilities 2,928 3,376
Asset retirement obligation 18,684 18,248
Loans and borrowings 22,885 24,077
Total liabilities 53,136 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 431,818 430,383
Accumulated deficit (317,635) (306,813)
Accumulated other comprehensive income 1,602 2,289
Total shareholders' equity 115,785 125,859
Non-controlling interests 3,876 3,883
Total equity 119,661 129,742
Total liabilities and equity 172,797 185,338
Commitments and contingencies (Note 12)