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7. Income Taxes - Income tax provision (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Notes to Financial Statements
Current income tax expense	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit	$ 0us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred income tax expense (benefit)	(13,856)us-gaap_DeferredIncomeTaxExpenseBenefit	9,474us-gaap_DeferredIncomeTaxExpenseBenefit	(21,759)us-gaap_DeferredIncomeTaxExpenseBenefit	(42,783)us-gaap_DeferredIncomeTaxExpenseBenefit
Total income tax provision	$ (13,856)us-gaap_IncomeTaxExpenseBenefit	$ 9,474us-gaap_IncomeTaxExpenseBenefit	$ (21,759)us-gaap_IncomeTaxExpenseBenefit	$ (42,783)us-gaap_IncomeTaxExpenseBenefit
Effective tax rate	(7.00%)	10.00%	(24.00%)	(17.00%)

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.