XML 43 R33.htm IDEA: XBRL DOCUMENT v3.19.2
Other Assets - Other Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Furniture and fixtures, net of accumulated depreciation $ 33 $ 36
Lik project equipment, net of accumulated depreciation 60 70
Exploration bonds and other assets 4 4
Office lease asset 64
Total other assets $ 161 $ 110