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Other Assets (Details Narrative) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Other Assets (Details Narrative) - USD ($) $ in Thousands	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Exploration equipment at Lik project	$ 100	$ 100
Depreciation recorded on Lik assets	$ 5	$ 5
Units of Vendetta			7,240,000
Cost of Vendetta Units			$ 289
Vendetta warrants exercised and shares received	5,000,000	7,240,000	7,240,000
Amount paid to exercise Vendetta Warrants	$ 411	$ 578	$ 578