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Leaseus-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_PropertySubjectToOperatingLeaseMemberus-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxisexplicitMemberfalsefalseSQN Fund IIus-gaap_BusinessAcquisitionAxisxbrldihttp://xbrl.org/2006/xbrldisqnf_SQNAlternativeInvestmentFundIILLCMemberus-gaap_BusinessAcquisitionAxisexplicitMemberfalsefalseFurniture and fixturesus-gaap_MajorPropertyClassAxisxbrldihttp://xbrl.org/2006/xbrldisqnf_FurnitureAndFixtures4Memberus-gaap_MajorPropertyClassAxisexplicitMemberfalsefalseGBPus-gaap_CurrencyAxisxbrldihttp://xbrl.org/2006/xbrldicurrency_GBPus-gaap_CurrencyAxisexplicitMemberGBPStandardhttp://www.xbrl.org/2003/iso4217GBPiso42170GBPGBP£1false 4us-gaap_DescriptionOfLessorLeasingArrangementsOperatingLeasesus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse0090%falsefalsefalse6falsefalsefalse0090%falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringA general description of the nature of the existing leasing arrangements of a lessor for all operating leases including, but not limited to: (1) guarantees or indemnities; (2) restrictions imposed by lease arrangements; (3) unusual provisions or conditions; (4) contingent rentals; and (5) lease expiration dates.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6452767&loc=d3e37045-112695 false0Percentage of leased ownership purchased2false 4sqnf_LeaseTransactionAmountsqnf_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse11500001150000USD$falsetruefalse4truefalsefalse508725508725USD$falsetruefalse5truefalsefalse11550001155000USD$falsetruefalse6truefalsefalse310000310000USD$falsetruefalse7truefalsefalse140402140402USD$falsetruefalse8truefalsefalse8886288862GBP£falsetruefalse9truefalsefalse5918659186USD$falsetruefalse10truefalsefalse3745937459GBP£falsetruefalse11truefalsefalse273048273048USD$falsetruefalse12truefalsefalse172815172815GBP£falsetruefalsexbrli:monetaryItemTypemonetaryAmount represents the purchase price paid for the direct finance lease.No definition available.false2Purchase price3false 4us-gaap_SecurityDepositLiabilityus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalse1truefalsefalse349288349288falsefalsefalse2truefalsefalse297176297176falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse171000171000falsefalsefalse6truefalsefalse2900029000falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents money paid in advance to protect the provider of a product or service, such as a lessor, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.15(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 false2Security deposits payable4false 4sqnf_DescriptionOfLessorLeasingArrangementsOperatingLeasesTermOfContractsqnf_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse0060 monthsfalsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00Remaining term which expires on February 13, 2015 falsefalsefalse6falsefalsefalse00Remaining term which expires on March 13, 2015 falsefalsefalse7falsefalsefalse00Remaining term through November 30, 2013falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00Three months remaining on its initial lease termfalsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00Remaining term of 21 monthsfalsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringDescription of operating lease term of the lessor's leasing arrangement.No definition available.false0Description of lease term5false 4us-gaap_CapitalLeasesFutureMinimumPaymentsDueus-gaap_truecreditinstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse2054720547falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse1622016220falsefalsefalse6truefalsefalse37773777falsefalsefalse7truefalsefalse1559315593falsefalsefalse8truefalsefalse1025310253falsefalsefalse9truefalsefalse1757617576falsefalsefalse10truefalsefalse1155711557falsefalsefalse11truefalsefalse3195831958falsefalsefalse12truefalsefalse2101421014falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of minimum lease payments for capital leases.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 false2Monthly lease payments6false 4us-gaap_PropertySubjectToOrAvailableForOperatingLeaseNumberOfUnitsus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse1000010000falsefalsefalse4truefalsefalse50005000falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:decimalItemTypedecimalThe number of units (items of property) under operating lease arrangements.No definition available.false256Number of storage bins7false 4sqnf_SecurityDepositLiabilityRefundedsqnf_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse297176297176falsefalsefalse4truefalsefalse148588148588falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents money refunded to protect the provider of a product or service, such as a lesser, against damage or nonpayment by the buyer or tenant (lessee) during the term of the agreement. Such damages may include physical damage to the property, theft of property, and other contractual breaches. Security deposits held may be interest or noninterest bearing.No definition available.false2Lease security deposit refunded8false 4sqnf_NetSalesPriceOfLeasedAssetsDisposedsqnf_falsedebitdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse360137360137falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryNet sale proceeds from the dispostion of leased assets.No definition available.false2Net sales price of leased assets disposed of9false 4us-gaap_OperatingLeasesIncomeStatementInitialDirectCostsus-gaap_truedebitdurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse4264142641USD$falsetruefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6falsefalsefalse00falsefalsefalse7falsefalsefalse00falsefalsefalse8falsefalsefalse00falsefalsefalse9falsefalsefalse00falsefalsefalse10falsefalsefalse00falsefalsefalse11falsefalsefalse00falsefalsefalse12falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryCosts that are essential to acquiring the lease and would not otherwise have been incurred without the lease agreement, including evaluating the lessee's credit condition, guarantees, and collateral and costs incurred negotiating, processing, and closing the lease agreement.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=6748888&loc=d3e40246-112709 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=6748888&loc=d3e40588-112709 false2Lease initial direct costsfalseInvestment in Equipment Subject to Operating Leases (Details Narrative)NoRoundingUnKnownUnKnownUnKnowntruefalsetrueSheethttp://sqncapital.com/role/InvestmentInEquipmentSubjectToOperatingLeasesDetailsNarrative129