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Organization and Business Operations (Details) (USD $)
3 Months Ended 35 Months Ended 1 Months Ended 0 Months Ended 11 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Aug. 01, 2012
AWP
Jul. 31, 2011
AWP
Sharing agreement
acre
item
Aug. 01, 2012
AWP
Karlsson
Nov. 30, 2011
AWP
Karlsson
Operating Agreement
acre
item
Organization and Business Operations              
Amount of cash contributions made             $ 11,000,000
Number of private sections             8
Number of Arizona state sections on which permits are held             42
Area transferred in exchange for equity interest (in acres)             31,000
Ownership percentage       50.00%     50.00%
Number of private mineral estate sections covered         101    
Area of private mineral leases related to private mineral estates covered (in acres)         63,000    
Ownership percentage acquired from Karlsson Group           50.00%  
Net loss 1,534,000 (3,321,000) (130,043,000)        
Working capital deficit $ 22,300,000   $ 22,300,000