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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Current assets:    
Cash and cash equivalents $ 2,066 $ 1,904
Short-term investments (Note 2) 18,132 21,975
Other investments, at fair value (Note 2) 4,214 4,994
Other current assets 577 648
Total current assets 24,989 29,521
Non-current assets:    
Mineral properties (Note 3) 3,874 3,874
Plant and equipment, net (Note 4) 7,891 8,213
Total non-current assets 11,765 12,087
Total assets 36,754 41,608
Current liabilities:    
Accounts payable 152 252
Accrued liabilities and other 878 481
Provision for environmental liability 322 350
Total current liabilities 1,352 1,083
Total liabilities 1,352 1,083
Commitments and contingencies – (Note 6)
Shareholders' equity:    
Common shares, no par value - unlimited shares authorized; shares outstanding: 2017 - 98,196,308 and 2016 - 97,786,608 (Note 5) 455,870 455,443
Accumulated other comprehensive income (loss) (6) 15
Accumulated deficit (420,462) (414,933)
Total shareholders' equity 35,402 40,525
Total liabilities and shareholders' equity $ 36,754 $ 41,608