Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v2.4.1.9
Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Accounting Policies (Textual)    
Deposit in investment in subsidiary    $ 90,000us-gaap_DepositsAssetsNoncurrent
Impairment of goodwill and intangible assets 240,000us-gaap_GoodwillAndIntangibleAssetImpairment  
Amortization expenses 18,834us-gaap_InterestExpenseDebt  
Long-lived assets impaired other than goodwill and intangible assets 240,000us-gaap_OtherAssetImpairmentCharges  
Accumulated deficit $ (4,215,492)us-gaap_RetainedEarningsAccumulatedDeficit $ (2,569,223)us-gaap_RetainedEarningsAccumulatedDeficit
Gazania Investments [Member]    
Accounting Policies (Textual)    
Holding of African Graphite in its own subsidiary company in percentage 90.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
 
Namibian Centre [Member]    
Accounting Policies (Textual)    
Holding of African Graphite in its own subsidiary company in percentage 10.00%us-gaap_SubsidiaryOfLimitedLiabilityCompanyOrLimitedPartnershipOwnershipInterest
/ dei_LegalEntityAxis
= gpne_NamibianCentreMember