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Income Taxes - Reconciliation of the provision for income taxes to income taxes computed (Details) (USD $)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Income Tax Disclosure [Abstract]      
Tax expense at federal statutory rate $ (70,678) [1] $ 102,691 [1] $ 47,634 [1]
Statutory depletion carryforward    (155,734) (86,221)
Effect of graduated rates 3,391 (16,940) (3,074)
Revision of prior year estimates    4,314 44,503
Permanent differences 35,783 30,210 (17,309)
Other    7,499 (1,129)
Total income tax benefit $ (31,504) $ (27,960) $ (15,596)
Effective income tax rate (1500.00%) (900.00%) (1100.00%)
[1] The federal statutory rate was 34% for fiscal years ending March 31, 2013, 2012 and 2011.