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Other Assets (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Other assets $ 161 $ 159
Furniture and Fixtures    
Other assets 35 39
Lik Project Equipment    
Other assets 35 50
Office Lease Asset    
Other assets 17 45
Vendetta Warrants    
Other assets 70 21
Exploration Bonds and Other Assets    
Other assets $ 4 $ 4