XML 47 R20.htm IDEA: XBRL DOCUMENT v2.4.0.8
ASSET RETIREMENT OBLIGATIONS (Tables)
9 Months Ended
Sep. 30, 2013
ASSET RETIREMENT OBLIGATIONS  
Schedule of change in the balance of the restoration and reclamation liability

 

 

Reserve for future restoration and reclamation costs, beginning of year

 

$

4,498,057

 

Additions and changes in cash flow estimates

 

584,025

 

Costs incurred

 

(1,269,663

)

Accretion expense

 

292,305

 

Reserve for future restoration and reclamation costs, end of period

 

$

4,104,724