XML 28 R18.htm IDEA: XBRL DOCUMENT v3.10.0.1
Other Assets (Tables)
9 Months Ended
Sep. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Assets
(in thousands) September 30, December 31
  2018 2017
Furniture and fixtures, net of accumulated depreciation   $   38    $   31 
Lik project equipment, net of accumulated depreciation 75  90 
Exploration bonds and other assets   4    4 
Total other assets $117  $125