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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2012
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]  
Property and Equipment, Estimated Useful Life
Property and equipment are carried at cost. Depreciation and amortization is computed on the straight-line method over the estimated useful lives of the assets, or the life of the lease, whichever is shorter, as follows:

 
Estimated
 
Useful Life
Building and Building Improvements
20 – 40 years
Mining equipment
2 – 7 years
Office and shop furniture and equipment
3 – 7 years
Vehicles
5 years