XML 84 R50.htm IDEA: XBRL DOCUMENT
v3.20.1

Note 7 - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Allowance for loan losses | $ 9,836 | $ 9,309
Allowance for loan losses, charge-offs | (48) | (111)
Allowance for loan losses, recoveries | 14 | 15
Allowance for loan losses, provision | 1,528 | (957)
Allowance for loan losses | 11,330 | 8,256
Residential Portfolio Segment [Member] |  |
Allowance for loan losses | 4,182 | 3,986
Allowance for loan losses, charge-offs | 0 | (74)
Allowance for loan losses, recoveries | 3 | 4
Allowance for loan losses, provision | 198 | 75
Allowance for loan losses | 4,383 | 3,991
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Senior Lien [Member] |  |
Allowance for loan losses | 3,405 | 3,156
Allowance for loan losses, charge-offs | 0 | (50)
Allowance for loan losses, recoveries | 1 | 1
Allowance for loan losses, provision | 166 | 71
Allowance for loan losses | 3,572 | 3,178
Residential Portfolio Segment [Member] | Real Estate Loan [Member] | Junior Lien [Member] |  |
Allowance for loan losses | 384 | 325
Allowance for loan losses, charge-offs | 0 | (24)
Allowance for loan losses, recoveries | 1 | 0
Allowance for loan losses, provision | 29 | 28
Allowance for loan losses | 414 | 329
Residential Portfolio Segment [Member] | Home Equity Line of Credit 1 [Member] |  |
Allowance for loan losses | 276 | 302
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 1 | 3
Allowance for loan losses, provision | 1 | (19)
Allowance for loan losses | 278 | 286
Residential Portfolio Segment [Member] | Construction Loans [Member] |  |
Allowance for loan losses | 117 | 203
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 2 | (5)
Allowance for loan losses | 119 | 198
Commercial Portfolio Segment [Member] |  |
Allowance for loan losses | 4,788 | 4,591
Allowance for loan losses, charge-offs | (17) | 0
Allowance for loan losses, recoveries | 0 | 2
Allowance for loan losses, provision | 1,318 | (1,149)
Allowance for loan losses | 6,089 | 3,444
Commercial Portfolio Segment [Member] | Real Estate Loan [Member] |  |
Allowance for loan losses | 1,921 | 2,538
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 11 | (651)
Allowance for loan losses | 1,932 | 1,887
Commercial Portfolio Segment [Member] | Construction Loans [Member] |  |
Allowance for loan losses | 966 | 110
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 4 | 4
Allowance for loan losses | 970 | 114
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member] |  |
Allowance for loan losses | 1,391 | 1,553
Allowance for loan losses, charge-offs | (17) | 0
Allowance for loan losses, recoveries | 0 | 2
Allowance for loan losses, provision | 1,271 | (486)
Allowance for loan losses | 2,645 | 1,069
Commercial Portfolio Segment [Member] | Loans Secured by Farmland [Member] |  |
Allowance for loan losses | 158 | 102
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | (14) | (4)
Allowance for loan losses | 144 | 98
Commercial Portfolio Segment [Member] | Multifamily 5 or More Residential [Member] |  |
Allowance for loan losses | 156 | 114
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 43 | (2)
Allowance for loan losses | 199 | 112
Commercial Portfolio Segment [Member] | Agricultural Loans [Member] |  |
Allowance for loan losses | 41 | 46
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | (2) | (3)
Allowance for loan losses | 39 | 43
Commercial Portfolio Segment [Member] | Other Commercial Loans [Member] |  |
Allowance for loan losses | 155 | 128
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 5 | (7)
Allowance for loan losses | 160 | 121
Consumer Portfolio Segment [Member] |  |
Allowance for loan losses | 281 | 233
Allowance for loan losses, charge-offs | (31) | (37)
Allowance for loan losses, recoveries | 11 | 9
Allowance for loan losses, provision | 12 | 31
Allowance for loan losses | 273 | 236
Unallocated Financing Receivables [Member] |  |
Allowance for loan losses | 585 | 499
Allowance for loan losses, charge-offs | 0 | 0
Allowance for loan losses, recoveries | 0 | 0
Allowance for loan losses, provision | 0 | 86
Allowance for loan losses | $ 585 | $ 585

X
- Definition Amount of (credit) provision related to estimated loss from loan transactions. + References No definition available. + Details
Name: | cznc_CreditProvisionForLoanAndLeaseLosses
Namespace Prefix: | cznc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_LienCategoryAxis=us-gaap_JuniorLienMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
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_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=cznc_Multifamily5OrMoreResidentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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