CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net loss	$ (1,980,593)us-gaap_NetIncomeLoss	$ (5,152,817)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash used by operating activities:
Depreciation and depletion expense	68,284	125,106
Day 1 Loss on embedded derivative	392,220	0
Gain on change in fair value of derivatives	(136,811)	0
Compensatory stock options	6,957us-gaap_StockOptionPlanExpense	24,813us-gaap_StockOptionPlanExpense
Gain on sale of partial interest in Kenya concession	(2,724,793)	0
Amortization of convertible debt discount	49,373	0
Amortization of debt issuance cost	41,216us-gaap_AmortizationOfFinancingCosts	0us-gaap_AmortizationOfFinancingCosts
Stock issued for services	20,001	0
Stock issued for board compensation	0erhe_StockIssuedForBoardCompensation	25,200erhe_StockIssuedForBoardCompensation
Changes in operating assets and liabilities:
Prepaid expenses and other	(139,366)	40,600
Accounts payable and other accrued liabilities	(2,229,309)	428,347
Accounts payable and accrued liabilities, related party	0	(55,844)
Net cash used by operating activities	(6,632,821)	(4,564,595)
Cash Flows From Investing Activities
Purchase of oil and gas concessions	(294,506)	(991,500)
Proceeds from sale of partial interest in Kenya concession	4,731,608	0
Proceeds from sale of certificates of deposit	2,186,182	0
Purchase of restricted certificate of deposit	0	(2,186,182)
Purchase of furniture and equipment	(72,193)	(279,687)
Net cash provided (used) by investing activities	6,551,091	(3,457,369)
Cash flows from financing activities:
Debt origination fees	(232,050)us-gaap_PaymentsOfDebtIssuanceCosts	0us-gaap_PaymentsOfDebtIssuanceCosts
Proceeds from sale of common stock, net of expenses	0	1,540,178
Proceeds from convertible debt	1,311,982us-gaap_ProceedsFromConvertibleDebt	0us-gaap_ProceedsFromConvertibleDebt
Net cash provided by financing activities	1,079,932	1,540,178
Net increase (decrease) in cash and cash equivalents	998,202	(6,481,786)
Cash and cash equivalents at beginning of period	1,184,204	7,665,990
Cash and cash equivalents at end of period	2,182,406	1,184,204
Non-cash investing and financing activities:
Unpaid increase in oil and gas concession fees	0	(4,000,000)
Unrealized gain (loss) in Investment in Exile Resources	107,877us-gaap_UnrealizedGainLossOnSecurities	22,612us-gaap_UnrealizedGainLossOnSecurities
Non-cash debt origination costs	668,946	0
Accounting for tainted warrants	$ 13,701erhe_AccountingForTaintedWarrants	$ 0erhe_AccountingForTaintedWarrants

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- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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The noncash expense that accounts for the value of stock or unit options distributed to employees as compensation.

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- Definition

Amount of unrealized gain (loss) recognized in the income statement on unsold other securities.

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