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11. RESTRICTED CASH AND INVESTMENTS (Tables)
 12 Months Ended
Dec. 31, 2017
Restricted Cash And Investments Tables  
Restricted cash and investments
        At December 31   At December 31
(in thousands)       2017   2016
             
Cash and cash equivalents     $ 2,431 $ 277
Investments       7,281   2,037
      $ 9,712 $ 2,314
             
Restricted cash and investments-by item:            
Elliot Lake reclamation trust fund     $ 2,431 $ 2,213
Letters of credit facility pledged assets       7,174   -
Letters of credit additional collateral       107   101
      $ 9,712 $ 2,314