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Segment Reporting (Tables)
 12 Months Ended
Dec. 31, 2012
Segment Reporting [Abstract]  
Segment Reporting Information
(in thousands) Year ended December 31, 2012
  Mt Hamilton Exploration Corporate and
Other		 Consolidated
Exploration expense $ 300  $ 1,686  $       -    $ 1,986 
Interest expense 184  -   234  418 
Other (1) 58  798  986  1,842 
Pre-tax income (loss) $ 542  $ 2,484  $ 1,220  $ 4,246 
Total assets (2)(3) $14,236  $ 1,467  $ 7,780  $24,483 
Capital Expenditures $  3,789  $        3  $      62  $  3,854