XML 13 R25.htm IDEA: XBRL DOCUMENT

ASSET RETIREMENT OBLIGATIONS (Details) (USD $)	3 Months Ended		6 Months Ended
ASSET RETIREMENT OBLIGATIONS (Details) (USD $)	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Change in the balance of the restoration and reclamation liability
Reserve for future restoration and reclamation costs beginning of period			$ 4,735,759
Additions and changes in cash flow estimates			656,859
Costs incurred			(879,269)
Accretion/amortization of asset retirement obligations	23,624	30,820	46,743	69,019
Reserve for future restoration and reclamation costs at end of period	$ 4,560,092		$ 4,560,092

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

+ References+ Details

- Definition

Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

+ References+ Details