Consolidated Statements of Stockholders' Equity (Deficit) (An Exploration Stage Company) (Unaudited) (Parenthetical)
6 Months Ended 12 Months Ended
Dec. 31, 2011
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Jun. 30, 2006
Jun. 30, 2004
Jun. 30, 2007
2004 Stock Option Plan
Jun. 30, 2006
2004 Stock Option Plan
Jun. 30, 2005
2004 Stock Option Plan
Jun. 30, 2010
2006 Stock Option Plan
Jun. 30, 2009
2006 Stock Option Plan
Jun. 30, 2008
2006 Stock Option Plan
Jun. 30, 2007
2006 Stock Option Plan
Jun. 30, 2006
Normal Warrants
Jun. 30, 2006
Special Warrants
Issuance of shares and warrants in lieu of debt repayment, shares           175,398                  
Issuance of shares on cashless exercise of options, shares           694,306                  
Sale of shares, shares   33,875,000 9,960,351 10,000,000                      
Issuance of options under stock option plan, options                 140,000            
Amortization of options under stock option plan, options 1,100,000 800,000         140,000 140,000 140,000 465,000 465,000 465,000 465,000    
Issuance of shares and options in lieu of debt repayment, options         2,000,000                    
Sale of warrants, warrants                           2,000,000 1,000,000