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Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
INTEREST INCOME |  |  |
Loans receivable, including fees | $ 23,841 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 24,576 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 25,494 us-gaap_InterestAndFeeIncomeLoansAndLeases
Securities: Taxable | 2,032 us-gaap_InterestIncomeSecuritiesTaxable | 1,662 us-gaap_InterestIncomeSecuritiesTaxable | 1,950 us-gaap_InterestIncomeSecuritiesTaxable
Securities: Tax exempt | 1,888 us-gaap_InterestIncomeSecuritiesTaxExempt | 1,995 us-gaap_InterestIncomeSecuritiesTaxExempt | 1,938 us-gaap_InterestIncomeSecuritiesTaxExempt
Other | 7 us-gaap_OtherInterestAndDividendIncome | 26 us-gaap_OtherInterestAndDividendIncome | 32 us-gaap_OtherInterestAndDividendIncome
Total interest income | 27,768 us-gaap_InterestAndDividendIncomeOperating | 28,259 us-gaap_InterestAndDividendIncomeOperating | 29,414 us-gaap_InterestAndDividendIncomeOperating
INTEREST EXPENSE |  |  |
Deposits | 2,463 us-gaap_InterestExpenseDomesticDeposits | 2,848 us-gaap_InterestExpenseDomesticDeposits | 3,660 us-gaap_InterestExpenseDomesticDeposits
Short-term borrowings | 77 us-gaap_InterestExpenseShortTermBorrowings | 66 us-gaap_InterestExpenseShortTermBorrowings | 53 us-gaap_InterestExpenseShortTermBorrowings
Other borrowings | 668 us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm | 684 us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm | 937 us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm
Total Interest Expense | 3,208 us-gaap_InterestExpense | 3,598 us-gaap_InterestExpense | 4,650 us-gaap_InterestExpense
Net Interest Income | 24,560 us-gaap_InterestIncomeExpenseNet | 24,661 us-gaap_InterestIncomeExpenseNet | 24,764 us-gaap_InterestIncomeExpenseNet
PROVISION FOR LOAN LOSSES | 1,680 us-gaap_ProvisionForLoanAndLeaseLosses | 2,400 us-gaap_ProvisionForLoanAndLeaseLosses | 2,450 us-gaap_ProvisionForLoanAndLeaseLosses
Net Interest Income after Provision for Loan Losses | 22,880 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 22,261 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 22,314 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss
OTHER INCOME |  |  |
Service charges and fees | 2,350 us-gaap_FeesAndCommissionsDepositorAccounts | 2,412 us-gaap_FeesAndCommissionsDepositorAccounts | 2,237 us-gaap_FeesAndCommissionsDepositorAccounts
Income from fiduciary activities | 437 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities | 379 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities | 355 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities
Net realized gains on sales of securities | 1,170 us-gaap_GainLossOnSaleOfSecuritiesNet | 881 us-gaap_GainLossOnSaleOfSecuritiesNet | 1,419 us-gaap_GainLossOnSaleOfSecuritiesNet
Gains on sale of loans and servicing rights | 132 us-gaap_GainLossOnSalesOfLoansNet | 112 us-gaap_GainLossOnSalesOfLoansNet | 211 us-gaap_GainLossOnSalesOfLoansNet
Earnings and proceeds on bank owned life insurance | 685 us-gaap_BankOwnedLifeInsuranceIncome | 1,386 us-gaap_BankOwnedLifeInsuranceIncome | 539 us-gaap_BankOwnedLifeInsuranceIncome
Other | 336 us-gaap_NoninterestIncomeOtherOperatingIncome | 445 us-gaap_NoninterestIncomeOtherOperatingIncome | 445 us-gaap_NoninterestIncomeOtherOperatingIncome
Total other income | 5,110 us-gaap_NoninterestIncome | 5,615 us-gaap_NoninterestIncome | 5,206 us-gaap_NoninterestIncome
OTHER EXPENSES |  |  |
Salaries and employee benefits | 8,616 us-gaap_LaborAndRelatedExpense | 8,447 us-gaap_LaborAndRelatedExpense | 8,403 us-gaap_LaborAndRelatedExpense
Occupancy | 1,676 us-gaap_OccupancyNet | 1,598 us-gaap_OccupancyNet | 1,539 us-gaap_OccupancyNet
Furniture and equipment | 441 us-gaap_EquipmentExpense | 538 us-gaap_EquipmentExpense | 456 us-gaap_EquipmentExpense
Data processing related operations | 929 us-gaap_InformationTechnologyAndDataProcessing | 891 us-gaap_InformationTechnologyAndDataProcessing | 897 us-gaap_InformationTechnologyAndDataProcessing
Federal Deposit Insurance Corporation insurance assessment | 420 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 444 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 398 us-gaap_FederalDepositInsuranceCorporationPremiumExpense
Advertising | 224 us-gaap_AdvertisingExpense | 208 us-gaap_AdvertisingExpense | 222 us-gaap_AdvertisingExpense
Professional fees | 671 us-gaap_ProfessionalFees | 626 us-gaap_ProfessionalFees | 811 us-gaap_ProfessionalFees
Postage and telephone | 414 nwfl_PostageAndTelephoneExpense | 435 nwfl_PostageAndTelephoneExpense | 424 nwfl_PostageAndTelephoneExpense
Taxes, other than income | 649 us-gaap_TaxesExcludingIncomeAndExciseTaxes | 710 us-gaap_TaxesExcludingIncomeAndExciseTaxes | 599 us-gaap_TaxesExcludingIncomeAndExciseTaxes
Foreclosed real estate owned | 1,555 us-gaap_ForeclosedRealEstateExpense | 567 us-gaap_ForeclosedRealEstateExpense | 217 us-gaap_ForeclosedRealEstateExpense
Amortization of Intangible Assets | 121 us-gaap_AmortizationOfIntangibleAssets | 137 us-gaap_AmortizationOfIntangibleAssets | 153 us-gaap_AmortizationOfIntangibleAssets
Other | 2,011 us-gaap_OtherNoninterestExpense | 2,104 us-gaap_OtherNoninterestExpense | 1,962 us-gaap_OtherNoninterestExpense
Total other expenses | 17,727 us-gaap_NoninterestExpense | 16,705 us-gaap_NoninterestExpense | 16,081 us-gaap_NoninterestExpense
Income before Income Taxes | 10,263 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 11,171 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 11,439 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
INCOME TAX EXPENSE | 2,606 us-gaap_IncomeTaxExpenseBenefit | 2,706 us-gaap_IncomeTaxExpenseBenefit | 3,036 us-gaap_IncomeTaxExpenseBenefit
Net Income | $ 7,657 us-gaap_NetIncomeLoss | $ 8,465 us-gaap_NetIncomeLoss | $ 8,403 us-gaap_NetIncomeLoss
EARNINGS PER SHARE |  |  |
BASIC EARNINGS PER SHARE | $ 2.10 us-gaap_EarningsPerShareBasic | $ 2.33 us-gaap_EarningsPerShareBasic | $ 2.33 us-gaap_EarningsPerShareBasic
DILUTED EARNINGS PER SHARE | $ 2.10 us-gaap_EarningsPerShareDiluted | $ 2.33 us-gaap_EarningsPerShareDiluted | $ 2.33 us-gaap_EarningsPerShareDiluted

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- Definition Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans and (2) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13 (a)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 + Details
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- Definition The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.1) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 9 + Details
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- Definition The aggregate interest expense incurred on all domestic deposits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.6) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 6 -Article 9 + Details
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- Definition The aggregate interest expense incurred on short-term borrowings including commercial paper and Federal funds purchased and securities sold under agreements to repurchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.7) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 7 -Article 9 + Details
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