v2.4.0.8

Mineral Property Rights (Details Narrative) (USD $)	12 Months Ended
Mineral Property Rights (Details Narrative) (USD $)	Aug. 31, 2012	Aug. 31, 2011	May 31, 2015	May 31, 2014	May 31, 2013	May 24, 2013	Jun. 22, 2012	May 31, 2012	Oct. 27, 2011	May 31, 2011
Extractive Industries [Abstract]
Cash payments required under option agreement	$ 25,000	$ 75,000		$ 100,000	$ 150,000			$ 25,000		$ 75,000
Shares issued under agreement				500,000	500,000		750,000		250,000	500,000
Net Smelter Royalty										3.00%
Work Program Commitment, in years										4
Total work program expenditures										1,000,000
Work program expenditures required each year			400,000	300,000	200,000			100,000
Cash payments made towards option		75,000
Shares issued under option agreement	1,000,000	500,000
Fair Market Value, shares issued under agreement	105,000	175,000
Impairment on mineral property	130,000	250,000
Exploration Expense, paid to GeoXplor	$ 122,858	$ 104,823
Number of days to cure default						30

- Definition

Cash payments to comply with Option on Mineral property, each period

+ References

No definition available.

+ Details

Name:	NECA_CashPaymentsTowardsOptionInYear
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash payments required under terms of Mineral Property Option

+ References

No definition available.

+ Details

Name:	NECA_CashPaymentsUnderOptionAgreementTerms
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Exploration expenses, mining, paid to GeoXplor,

+ References

No definition available.

+ Details

Name:	NECA_ExplorationExpenseMiningGeoXplor
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair market value, shares issued for option on mineral property, year one

+ References

No definition available.

+ Details

Name:	NECA_FairMarketValueSharesIssuedForOptionInYear
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Impairment on mineral property

+ References

No definition available.

+ Details

Name:	NECA_ImpairmentOnMineralProperty
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net Smelter Royalty payable to Optionor, Mineral Property

+ References

No definition available.

+ Details

Name:	NECA_NetSmelterRoyaltyPercent
Namespace Prefix:	NECA_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of days from default notice to cure default

+ References

No definition available.

+ Details

Name:	NECA_NumberDaysToCureDefault
Namespace Prefix:	NECA_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Shares to be issued to comply with option on Mineral Property, each period

+ References

No definition available.

+ Details

Name:	NECA_SharesIssuedTowardsOptionInYear
Namespace Prefix:	NECA_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Shares issued under terms of Mineral property option agreements

+ References

No definition available.

+ Details

Name:	NECA_SharesIssuedUnderOptionAgreementTerms
Namespace Prefix:	NECA_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Work Program Expenditure, Total expenditures required

+ References

No definition available.

+ Details

Name:	NECA_TotalWorkProgramExpenditures
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Work program commitment, number of years

+ References

No definition available.

+ Details

Name:	NECA_WorkProgramCommitmentInYears
Namespace Prefix:	NECA_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Annual work program committment, in dollars

+ References

No definition available.

+ Details

Name:	NECA_WorkProgramExpendituresByYear
Namespace Prefix:	NECA_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_ExtractiveIndustriesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

NEW AMERICA ENERGY CORP. 10-Q