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Business and Significant Accounting Policies (Details Narrative) (USD $)
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 31, 2014
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jul. 29, 2014
May 19, 2014
Jan. 28, 2014
Dec. 31, 2013
Jun. 18, 2013
Jul. 21, 2010
Jun. 27, 2006
Accounting Policies [Abstract]                        
Amount borrowed in short-term margin loans against holding of Kinross shares                 $ 802,000      
Proceeds from sale of 20,000 Kinross shares sold   82,000                    
Shares of Kinross owned           480,000            
Value of Kinross shares owned at a market price of $4.14 per share           1,990,000            
Anglo Platinum interest earned                     0.51  
Loss in unconsolidated subsidiary   28,000   153,000                
Equity investment in unconsolidated subsidiary       0                
Unrecognized losses related to 49% interest in unconsolidated subsidiary   181,000   181,000                
Stock option expense for the amortization of grant date fair value   56,000 68,000 112,000 192,000              
Options available under 2006 Stock Option Incentive Plan                       2,800,000
Awards at Cdn$2.40 voluntarily cancelled under 2006 Plan               1,797,000        
Options expired             264,000          
Proceeds from options exercised of 112,500 shares at Cdn$1.55 176,000   176,000   176,000              
Proceeds from options exercised of 5,000 shares at Cdn$1.49     $ 7,000   $ 7,000              
Options available for award under 2013 Solitario Exploration and Royalty Corp. Omnibus Stock and Incentive Plan                   1,750,000    
Options granted from 2013 plan as part of severance pay       50,562                
Options granted at an exercise price of $1.14 per share     120,000   120,000              
Potentially dilutive shares related to options excluded from earnings per share   1,758,000 2,600,900 1,758,000 2,600,900              
Shares related to warrants excluded from earnings per share   1,624,748 1,624,748