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Asset Retirement Obligations - Rollforward of the asset retirement obligations (Details) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2012
Notes To Financial Statements (Details)
Carrying amount of asset retirement obligations as of April 1, 2012			$ 663,279
Liabilities incurred			18,437
Liabilities settled
Accretion expense	9,604	8,698	19,142	17,736
Carrying amount of asset retirement obligations as of September 30, 2012	700,858		700,858
Less: Current portion	50,000		50,000
Non-Current asset retirement obligation	$ 650,858		$ 650,858		$ 613,279

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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