XML 196 R137.htm IDEA: XBRL DOCUMENT
v3.20.4

FAIR VALUE MEASUREMENTS AND FAIR VALUES OF FINANCIAL INSTRUMENTS - Level 3 Valuation Techniques Nonrecurring (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | $ 8,082,000 | $ 3,375,000
Related allowance | 925,000 | 1,051,000
Nonrecurring fair value measurements |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 7,157,000 | 2,324,000
Related allowance | 925,000 | 1,051,000
Foreclosed assets held for sale | 1,338,000 | 2,886,000
Real estate loan |  |
Valuation Techniques and the Unobservable Inputs |  |
Related allowance | 416,000 | 678,000
Residential mortgage |  |
Valuation Techniques and the Unobservable Inputs |  |
Foreclosed assets held for sale | 80,000 | 292,000
Residential mortgage | Real estate loan |  |
Valuation Techniques and the Unobservable Inputs |  |
Related allowance | 153,000 | 176,000
Commercial | Real estate loan |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 6,501,000 | 0
Related allowance | 691,000 | 0
Commercial | Commercial and industrial |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 72,000 | 904,000
Related allowance | 72,000 | 149,000
Commercial | Loans secured by farm land |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 0 | 478,000
Related allowance | 0 | 48,000
Impaired Loans |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 8,082,000 | 3,375,000
Related allowance | 925,000 | 1,051,000
Fair value | 7,157,000 | 2,324,000
Impaired Loans | Valuation, Market Approach | Residential mortgage | Real estate loan |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 1,509,000 | 732,000
Related allowance | 162,000 | 176,000
Fair value | $ 1,347,000 | $ 556,000
Impaired Loans | Valuation, Market Approach | Residential mortgage | Real estate loan | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate | 31.00% | 30.00%
Impaired Loans | Valuation, Market Approach | Commercial | Real estate loan |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance |  | $ 478,000
Related allowance |  | 48,000
Fair value |  | $ 430,000
Impaired Loans | Valuation, Market Approach | Commercial | Real estate loan | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate |  | 46.00%
Impaired Loans | Valuation, Market Approach | Commercial | Commercial and industrial |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | $ 6,501,000 | $ 106,000
Related allowance | 691,000 | 89,000
Fair value | 5,810,000 | 17,000
Impaired Loans | Valuation, Market Approach | Commercial | Commercial and industrial | Measurement Input Discount To Borrowers Financial Statement Value Member |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance | 72,000 | 798,000
Related allowance | 72,000 | 60,000
Fair value |  | $ 738,000
Fair value | $ 0 |
Impaired Loans | Valuation, Market Approach | Commercial | Commercial and industrial | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate | 28.00% | 69.00%
Impaired Loans | Valuation, Market Approach | Commercial | Commercial and industrial | Weighted average | Measurement Input Discount To Borrowers Financial Statement Value Member |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate | 100.00% | 15.00%
Impaired Loans | Valuation, Market Approach | Commercial | Loans secured by farm land |  |
Valuation Techniques and the Unobservable Inputs |  |
Recorded investment - with allowance |  | $ 1,261,000
Related allowance |  | 678,000
Fair value |  | $ 583,000
Impaired Loans | Valuation, Market Approach | Commercial | Loans secured by farm land | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate |  | 47.00%
Foreclosed Assets Held For Sale |  |
Valuation Techniques and the Unobservable Inputs |  |
Foreclosed assets held for sale | $ 1,338,000 | $ 2,886,000
Valuation allowance | 0 | 0
Fair value | 1,338,000 | 2,886,000
Foreclosed Assets Held For Sale | Valuation, Market Approach | Land Receivable |  |
Valuation Techniques and the Unobservable Inputs |  |
Foreclosed assets held for sale |  | 70,000
Valuation allowance |  | 0
Fair value |  | $ 70,000
Foreclosed Assets Held For Sale | Valuation, Market Approach | Land Receivable | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate |  | 53.00%
Foreclosed Assets Held For Sale | Valuation, Market Approach | Commercial Real Estate Receivables |  |
Valuation Techniques and the Unobservable Inputs |  |
Foreclosed assets held for sale | 1,258,000 | $ 2,524,000
Valuation allowance | 0 | 0
Fair value | $ 1,258,000 | $ 2,524,000
Foreclosed Assets Held For Sale | Valuation, Market Approach | Commercial Real Estate Receivables | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate | 44.00% | 39.00%
Foreclosed Assets Held For Sale | Valuation, Market Approach | Residential mortgage |  |
Valuation Techniques and the Unobservable Inputs |  |
Foreclosed assets held for sale | $ 80,000 | $ 292,000
Valuation allowance | 0 | 0
Fair value | $ 80,000 | $ 292,000
Foreclosed Assets Held For Sale | Valuation, Market Approach | Residential mortgage | Weighted average |  |
Valuation Techniques and the Unobservable Inputs |  |
Discount rate | 36.00% | 46.00%

X
- Definition The fair value of foreclosed real estate. + References No definition available. + Details
Name: | cznc_ForeclosedRealEstateFairValue
Namespace Prefix: | cznc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of impaired loans. + References No definition available. + Details
Name: | cznc_ImpairedLoansFairValue
Namespace Prefix: | cznc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References No definition available. + Details
Name: | cznc_ModelingPeriodRate
Namespace Prefix: | cznc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5162-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4437-111522 + Details
Name: | us-gaap_RealEstateAcquiredThroughForeclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition For each period for which an income statement is required, disclosure of the changes in the allowance, including balances at end of period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10(4)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_RealEstateOwnedValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_RealEstateLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_CommercialAndIndustrialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_LoansSecuredByFarmlandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=cznc_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_MarketApproachValuationTechniqueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=cznc_MeasurementInputDiscountToBorrowersFinancialStatementValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=cznc_ForeclosedAssetsHeldForSaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_LandReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_CommercialRealEstateReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |