Income Taxes (Details Narrative) (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2010
Income Tax Disclosure [Abstract]
Statutory depletion carryforward	$ 4,300,000
Net operating loss carryforward	3,800,000
Expiration date, operating loss carryforward	2021
Deferred income tax benefit (expense)	31,504	27,960	(9,906)
Current income tax benefit			25,502
Uncertain tax positions
Unrecognized tax benefits at end of period	$ 677,000	$ 677,000	$ 670,000	$ 524,000