XML 66 R56.htm IDEA: XBRL DOCUMENT
v3.22.2

LOANS - Troubled Debt Restructurings (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 USD ($) loan | Jun. 30, 2022 USD ($) loan | Jun. 30, 2021 USD ($) loan
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 0 | 1 | 0 | 3
Troubled debt restructurings, post-modification recorded investment | $ | $ 0 | $ 116 | $ 0 | $ 152
Home equity lines of credit | Monthly Payment Reduction and Extended Maturity Date [Member] |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 0 | 1
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 0 | $ 24
Residential mortgage | Real estate loan | first liens | Reduced monthly payments for a fifteen-month period |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan | 0 | 1 | 0 | 1
Troubled debt restructurings, post-modification recorded investment | $ | $ 0 | $ 116 | $ 0 | $ 116
Residential mortgage | Real estate loan | first liens | Monthly Payment Reduction and Extended Maturity Date [Member] |  |  |  |
Troubled Debt Restructurings |  |  |  |
Troubled debt restructurings, number of contracts | loan |  |  | 0 | 1
Troubled debt restructurings, post-modification recorded investment | $ |  |  | $ 0 | $ 12

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_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_HomeEquityLineOfCredit1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_LienCategoryAxis=us-gaap_SeniorLienMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=cznc_ReducedMonthlyPaymentsForFifteenMonthPeriodMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |