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Condensed Consolidated Statements Of Cash Flows - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Cash flows from operating activities:    
Net income/(loss) for the period $ 1,011 $ (18,926)
Adjustments to reconcile net income/(loss) for the period to net cash provided by/(used in) operations    
Depreciation and amortization 694 863
Stock-based compensation 817 1,126
(Gain)/loss on disposal of marketable securities (12) (24)
Write-down of marketable securities and long-term investments   138
Gain on disposal of mineral property (1,958)  
Write-down of value-added tax receivable 572  
Write-down of non-current assets   5,563
Loss on other investments 1,593 4,112
Other non-cash items   (162)
Change in working capital account items:    
Other current assets 316 492
Accounts payable, accrued liabilities and other (24) (240)
Net cash provided by/(used in) operating activities 3,009 (7,058)
Cash flows from investing activities:    
Proceeds from sale of marketable securities 41 60
Proceeds from sale of other investments, net 2,772 10,560
Acquisition of short-term investments, net of dispositions (11,990)  
Additions to plant and equipment (134) (7)
Proceeds from option/sale agreements, net 3,490 1,028
Net cash (used in)/provided by investing activities (5,821) 11,641
Cash flows from financing activities:    
Repayment of debt   (6,344)
Net cash used in financing activities   (6,344)
Net decrease in cash and cash equivalents (2,812) (1,761)
Cash and cash equivalents, beginning of period 3,714 5,475
Cash and cash equivalents, end of period $ 902 $ 3,714