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v2.4.1.9

Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Interest Income |  |  |
Interest and fees on loans | $ 31,217 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 32,819 us-gaap_InterestAndFeeIncomeLoansAndLeases | $ 35,354 us-gaap_InterestAndFeeIncomeLoansAndLeases
Interest on interest-bearing deposits | 262 us-gaap_InterestIncomeDepositsWithFinancialInstitutions | 213 us-gaap_InterestIncomeDepositsWithFinancialInstitutions | 240 us-gaap_InterestIncomeDepositsWithFinancialInstitutions
Interest on securities – taxable | 6,798 us-gaap_InterestIncomeSecuritiesTaxable | 6,585 us-gaap_InterestIncomeSecuritiesTaxable | 6,460 us-gaap_InterestIncomeSecuritiesTaxable
Interest on securities – nontaxable | 5,826 us-gaap_InterestIncomeSecuritiesTaxExempt | 6,388 us-gaap_InterestIncomeSecuritiesTaxExempt | 6,463 us-gaap_InterestIncomeSecuritiesTaxExempt
Total interest income | 44,103 us-gaap_InterestAndDividendIncomeOperating | 46,005 us-gaap_InterestAndDividendIncomeOperating | 48,517 us-gaap_InterestAndDividendIncomeOperating
Interest Expense |  |  |
Interest on deposits | 4,899 us-gaap_InterestExpenseOtherDomesticDeposits | 5,955 us-gaap_InterestExpenseOtherDomesticDeposits | 7,887 us-gaap_InterestExpenseOtherDomesticDeposits
Total interest expense | 4,899 us-gaap_InterestExpenseDeposits | 5,955 us-gaap_InterestExpenseDeposits | 7,887 us-gaap_InterestExpenseDeposits
Net interest income | 39,204 us-gaap_InterestIncomeExpenseNet | 40,050 us-gaap_InterestIncomeExpenseNet | 40,630 us-gaap_InterestIncomeExpenseNet
Provision for loan losses | 1,641 us-gaap_ProvisionForLoanAndLeaseLosses | 1,531 us-gaap_ProvisionForLoanAndLeaseLosses | 3,134 us-gaap_ProvisionForLoanAndLeaseLosses
Net interest income after provision for loan losses | 37,563 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 38,519 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 37,496 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss
Noninterest Income |  |  |
Service charges on deposit accounts | 2,434 us-gaap_FeesAndCommissionsDepositorAccounts | 2,563 us-gaap_FeesAndCommissionsDepositorAccounts | 2,594 us-gaap_FeesAndCommissionsDepositorAccounts
Other service charges and fees | 187 us-gaap_FeesAndCommissionsOther | 225 us-gaap_FeesAndCommissionsOther | 243 us-gaap_FeesAndCommissionsOther
Credit card fees | 3,631 us-gaap_FeesAndCommissionsCreditCards | 3,330 us-gaap_FeesAndCommissionsCreditCards | 3,278 us-gaap_FeesAndCommissionsCreditCards
Trust income | 1,213 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities | 1,150 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities | 1,313 us-gaap_FeesAndCommissionsFiduciaryAndTrustActivities
BOLI income | 711 us-gaap_BankOwnedLifeInsuranceIncome | 739 us-gaap_BankOwnedLifeInsuranceIncome | 814 us-gaap_BankOwnedLifeInsuranceIncome
Other income | 868 us-gaap_NoninterestIncomeOtherOperatingIncome | 997 us-gaap_NoninterestIncomeOtherOperatingIncome | 669 us-gaap_NoninterestIncomeOtherOperatingIncome
Realized securities gains (losses), net | 2 us-gaap_GainLossOnSaleOfSecuritiesNet | (46)us-gaap_GainLossOnSaleOfSecuritiesNet | 60 us-gaap_GainLossOnSaleOfSecuritiesNet
Total noninterest income | 9,046 us-gaap_NoninterestIncome | 8,958 us-gaap_NoninterestIncome | 8,971 us-gaap_NoninterestIncome
Noninterest Expense |  |  |
Salaries and employee benefits | 11,691 us-gaap_LaborAndRelatedExpense | 11,978 us-gaap_LaborAndRelatedExpense | 12,005 us-gaap_LaborAndRelatedExpense
Occupancy, furniture and fixtures | 1,722 us-gaap_OccupancyNet | 1,616 us-gaap_OccupancyNet | 1,589 us-gaap_OccupancyNet
Data processing and ATM | 1,643 us-gaap_InformationTechnologyAndDataProcessing | 1,700 us-gaap_InformationTechnologyAndDataProcessing | 1,593 us-gaap_InformationTechnologyAndDataProcessing
FDIC assessment | 533 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 554 us-gaap_FederalDepositInsuranceCorporationPremiumExpense | 475 us-gaap_FederalDepositInsuranceCorporationPremiumExpense
Credit card processing | 2,593 nksh_CreditCardProcessing | 2,546 nksh_CreditCardProcessing | 2,442 nksh_CreditCardProcessing
Intangible assets amortization | 1,075 us-gaap_AmortizationOfIntangibleAssets | 1,078 us-gaap_AmortizationOfIntangibleAssets | 1,083 us-gaap_AmortizationOfIntangibleAssets
Net costs of other real estate owned | 369 nksh_NetCostsOfOtherRealEstateOwned | 296 nksh_NetCostsOfOtherRealEstateOwned | 208 nksh_NetCostsOfOtherRealEstateOwned
Franchise taxes | 1,182 nksh_TaxOther | 1,083 nksh_TaxOther | 901 nksh_TaxOther
Other operating expenses | 3,709 us-gaap_OtherNoninterestExpense | 3,519 us-gaap_OtherNoninterestExpense | 3,179 us-gaap_OtherNoninterestExpense
Total noninterest expense | 24,517 us-gaap_NoninterestExpense | 24,370 us-gaap_NoninterestExpense | 23,475 us-gaap_NoninterestExpense
Income before income taxes | 22,092 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 23,107 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 22,992 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income tax expense | 5,178 us-gaap_IncomeTaxExpenseBenefit | 5,317 us-gaap_IncomeTaxExpenseBenefit | 5,245 us-gaap_IncomeTaxExpenseBenefit
Net income | $ 16,914 us-gaap_NetIncomeLoss | $ 17,790 us-gaap_NetIncomeLoss | $ 17,747 us-gaap_NetIncomeLoss
Basic net income per common share (in Dollars per share) | $ 2.43 us-gaap_EarningsPerShareBasic | $ 2.56 us-gaap_EarningsPerShareBasic | $ 2.56 us-gaap_EarningsPerShareBasic
Fully diluted net income per common share (in Dollars per share) | $ 2.43 us-gaap_EarningsPerShareDiluted | $ 2.55 us-gaap_EarningsPerShareDiluted | $ 2.55 us-gaap_EarningsPerShareDiluted

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- Definition Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance. + 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 210.9-04.14) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Income earned from credit card services including late, over limit, and annual fees. This item excludes interest income earned on credit card balances and transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: 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 (d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: 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 (d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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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 Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy. + 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) -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 net gain (loss) realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity. + 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(h)) -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 -Subparagraph h -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 3 -Article 7 + Details
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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. + 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 210.9-04.1-5) -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, 2 , 3, 4, 5 -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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