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7. Leases (Details Narrative) (TransCanada Keystone, USD $) | 12 Months Ended
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Dec. 31, 2014
TransCanada Keystone |
Lease revenue | $ 240,000 us-gaap_OperatingLeasesIncomeStatementLeaseRevenue / us-gaap_LeaseArrangementTypeAxis = zero_TransCanadaMember

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- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39896-112707 + Details
Name: | us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration