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10. Oil and Gas Costs - Aggregate capitalized costs relating to our oil and gas property activities (Details) - USD ($)	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Extractive Industries [Abstract]
Proved oil and gas properties	$ 40,489,453	$ 35,386,751	$ 34,138,841
Unproved oil and gas properties:
subject to amortization	$ 73,990	$ 73,990	$ 170,487
not subject to amortization
total	$ 40,563,443	$ 35,460,741	$ 34,309,328
Less accumulated DD&A	19,752,994	18,395,619	17,249,803
Total	$ 20,810,449	$ 17,065,122	$ 17,059,525

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The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, to purchase, lease or otherwise acquire an unproved property, including costs of lease bonuses and options to purchase or lease properties, the portion of costs applicable to minerals when land including mineral rights is purchased in fee, brokers' fees, recording fees, legal costs, and other costs incurred in acquiring properties.

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Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities.

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The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs.

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The sum of capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation.

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Net amount of capitalized costs relating to oil and gas producing activities.

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Capitalized costs of proved properties incurred for any combination mineral interests acquisitions; wells and related equipment; support equipment and facilities; and uncompleted wells and equipment and other costs not previously disclosed within this table.

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