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Asset Retirement Obligations - Rollforward of the asset retirement obligations (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013
Notes to Financial Statements
Carrying amount of asset retirement obligations as of April 1, 2013	$ 813,412
Liabilities incurred	2,895
Liabilities settled	(97)
Accretion expense	10,917	9,538
Carrying amount of asset retirement obligations as of June 30, 2013	827,127
Less: Current portion	50,000
Non-Current asset retirement obligation	$ 777,127		$ 763,412

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.

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- 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.

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