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Disposal of Hydro Resources, Inc. (Details Narrative)
$ / shares in Units, $ in Thousands
Jan. 05, 2017
USD ($)
Dec. 05, 2016
USD ($)
shares
Mar. 31, 2017
USD ($)
Jan. 19, 2017
$ / shares
Dec. 05, 2016
CAD / shares
Warrant purchase price per share | $ / shares       $ 0.01  
Promissory note secured by mortgage over the projects     $ 5,500    
Churchrock Project [Member] | NSR Royalty [Member]          
Percentage of net smelter return royalty   4.00%      
Laramide's La Sal Project [Member]          
Number of option purchase   $ 3,000      
Option expire date   Jan. 05, 2018      
La Jara Mesa Project [Member]          
Number of option purchase   $ 5,000      
Option expire date   Jan. 05, 2018      
Laramide Resources Ltd [Member]          
Cash   $ 2,500      
Cash paid in advance   $ 250      
Warrant to purchase of common stock | shares   2,218,333      
Promissory note secured by mortgage over the projects   $ 5,000      
Debt instrument, term   3 years      
Percentage of debt interest rate   5.00%      
Promissory note due date description   Principal payments of approximately $1.5 million are due and payable on January 5 in each of 2018 and 2019, with the balance of $2.0 million due and payable on January 5, 2020      
Additional gain on fair value of warrants $ 500        
Future cash receipts discount percnetage 9.50%        
Laramide Resources Ltd [Member] | January 5 In Each of 2018 and 2019 [Member]          
Debt principal amount due   $ 1,500      
Laramide Resources Ltd [Member] | January 5, 2020 [Member]          
Debt principal amount due   2,000      
Laramide Resources Ltd [Member] | January 5, 2018 [Member]          
Repurchase of royalty cost   $ 4,950      
Laramide Resources Ltd [Member] | Churchrock Project [Member]          
Percentage of debt interest rate   10.00%      
Laramide Resources Ltd [Member] | CAD [Member]          
Warrant purchase price per share | CAD / shares         CAD 0.45