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v2.4.1.9

Borrowings (Narrative) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Available-for-sale Securities Pledged as Collateral | $ 102,994 us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral | $ 94,352 us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available | 276,614 us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable |
Advances from Federal Home Loan Banks | 22,089 us-gaap_AdvancesFromFederalHomeLoanBanks |
FHLB of Pittsburgh [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 143,614 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = nwfl_FhlbOfPittsburghMember |
Line of Credit Facility, Fair Value of Amount Outstanding | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_FhlbOfPittsburghMember | 13,414 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_FhlbOfPittsburghMember
Atlantic Central Bankers Bank [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 7,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = nwfl_AtlanticCentralBankersBankMember |
Line of Credit Facility, Fair Value of Amount Outstanding | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_AtlanticCentralBankersBankMember | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_AtlanticCentralBankersBankMember
PNC Bank [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 16,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = nwfl_PncBankMember |
Line of Credit Facility, Fair Value of Amount Outstanding | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_PncBankMember | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_PncBankMember
Zion Bank [Member] |  |
Line of Credit Facility, Maximum Borrowing Capacity | 17,000 us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = nwfl_ZionBankMember |
Line of Credit Facility, Fair Value of Amount Outstanding | 0 us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = nwfl_ZionBankMember |
Securities Sold under Agreements to Repurchase [Member] |  |
Available-for-sale Securities Pledged as Collateral | 28,914 us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral / us-gaap_ShortTermDebtTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember | 40,065 us-gaap_AvailableForSaleSecuritiesPledgedAsCollateral / us-gaap_ShortTermDebtTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember
Security Owned and Pledged as Collateral, Fair Value | $ 28,437 us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue / us-gaap_ShortTermDebtTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember | $ 38,733 us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue / us-gaap_ShortTermDebtTypeAxis = us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember

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- Definition Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 + Details
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- Definition The fair value of available-for-sale securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5086-111524 + Details
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- Definition Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Subparagraph b -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22 (b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13 -Subparagraph 3(a) -Article 9 + Details
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- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=34720971&loc=SL6224234-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 + Details
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