2.4.0.8041 - Disclosure - NOTE 3 - LOANS - (Table 7) (Detail)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_CommercialLoansMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00ContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$2false USDfalsefalse$Context_As_Of__31-Dec-2012_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_CommercialLoansMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2012-12-31T00:00:000001-01-01T00:00:00ContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse1false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_CommercialLoansMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseCommercialus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_CommercialLoansMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Commercial | Non Accruing TDRs2false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse22falsefalsefalse2truefalsefalse11falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts3false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction4false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension5false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse518000518USD$falsefalsefalse2truefalsefalse529000529USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension6false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse518000518USD$falsefalsefalse2truefalsefalse529000529USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total7false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_CommercialRealEstateOtherReceivableMember_FinancingReceivableTroubledDebtRestructuringAxis_AccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseReal estate - commercialus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstateOtherReceivableMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseAccruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_AccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate - commercial | Accruing TDRs8false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse55falsefalsefalse2truefalsefalse55falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts9false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2truefalsefalse202000202USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction10false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse199000199USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension11false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse11330001133USD$falsefalsefalse2truefalsefalse11480001148USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension12false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse13320001332USD$falsefalsefalse2truefalsefalse13500001350USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse5false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_CommercialRealEstateOtherReceivableMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseReal estate - commercialus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_CommercialRealEstateOtherReceivableMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate - commercial | Non Accruing TDRs14false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse11falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts15false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction16false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension17false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse290000290USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension18false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse290000290USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total19false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse6false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_RealEstateConstructionMember_FinancingReceivableTroubledDebtRestructuringAxis_AccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseReal estate - constructionus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_RealEstateConstructionMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseAccruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_AccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate - construction | Accruing TDRs20false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse22falsefalsefalse2truefalsefalse11falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts21false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction22false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse411000411USD$falsefalsefalse2truefalsefalse343000343USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension23false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension24false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse411000411USD$falsefalsefalse2truefalsefalse343000343USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total25false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse8false USDtruefalse$Context_As_Of__31-Dec-2012_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_RealEstateConstructionMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2012-12-31T00:00:000001-01-01T00:00:00falsefalseReal estate - constructionus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_RealEstateConstructionMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate - construction | Non Accruing TDRs26false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse22falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts27false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse327000327USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction28false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse7100071USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension29false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension30false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2truefalsefalse398000398USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total31false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse9false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_RealEstateMortgageMember_FinancingReceivableTroubledDebtRestructuringAxis_AccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseReal estate-mortgageus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_RealEstateMortgageMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseAccruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_AccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate-mortgage | Accruing TDRs32false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse22falsefalsefalse2truefalsefalse22falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts33false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction34false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse295000295USD$falsefalsefalse2truefalsefalse298000298USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension35false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse420000420USD$falsefalsefalse2truefalsefalse423000423USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension36false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse715000715USD$falsefalsefalse2truefalsefalse721000721USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total37false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse11false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_RealEstateMortgageMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseReal estate-mortgageus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_RealEstateMortgageMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Real estate-mortgage | Non Accruing TDRs38false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse11falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts39false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction40false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension41false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse201000201USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension42false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse201000201USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total43false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse12false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_InstallmentPortfolioSegmentMember_FinancingReceivableTroubledDebtRestructuringAxis_AccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseInstallmentus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_InstallmentPortfolioSegmentMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseAccruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_AccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Installment | Accruing TDRs44false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse11falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts45false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction46false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension47false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse2700027USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension48false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse2700027USD$falsefalsefalse2falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total49false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse13false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_InstallmentPortfolioSegmentMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseInstallmentus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_InstallmentPortfolioSegmentMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Installment | Non Accruing TDRs50false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse33falsefalsefalse2truefalsefalse44falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts51false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction52false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension53false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse8900089USD$falsefalsefalse2truefalsefalse120000120USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension54false 4novb_TroubledDebtRestructuringPostModificationRecordedInvestmentnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse8900089USD$falsefalsefalse2truefalsefalse120000120USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents post-modification recorded investment by troubled debt restructuring.No definition available.false2Total55false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse15false USDtruefalse$Context_As_Of__30-Jun-2013_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_OtherLoansPortfolioSegmentMember_FinancingReceivableTroubledDebtRestructuringAxis_NonAccruingTdrsMemberhttp://www.sec.gov/CIK0000353191instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseOtherus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisxbrldihttp://xbrl.org/2006/xbrldinovb_OtherLoansPortfolioSegmentMemberus-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxisexplicitMemberfalsefalseNon Accruing TDRsus-gaap_FinancingReceivableTroubledDebtRestructuringAxisxbrldihttp://xbrl.org/2006/xbrldinovb_NonAccruingTdrsMemberus-gaap_FinancingReceivableTroubledDebtRestructuringAxisexplicitMemberContractStandardhttp://www.novb.com/20130630Contractnovb0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Other | Non Accruing TDRs56false 4novb_TroubledDebtRestructuringNumberOfContractsnovb_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse22falsefalsefalse2truefalsefalse11falsefalsefalsexbrli:integerItemTypeintegerThis element represents information of number of contracts.No definition available.false256Number of contracts57false 4novb_TroubledDebtRestructuringRateReductionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction related to troubled debt restructuring.No definition available.false2Rate reduction58false 4novb_TroubledDebtRestructuringMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00  USD$falsefalsefalse2falsefalsefalse00  USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of Maturity extension related troubled debt restructuring.No definition available.false2Maturity extension59false 4novb_TroubledDebtRestructuringRateReductionAndMaturityExtensionnovb_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse7200072USD$falsefalsefalse2truefalsefalse2500025USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThis element represents amount of rate reduction and maturity extension related to troubled debt restructuring.No definition available.false2Rate reduction and maturity extension60false 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