XML 63 R50.htm IDEA: XBRL DOCUMENT v3.21.2

LOANS - Impaired Loans (Details)	Sep. 30, 2021 USD ($) borrower property	Dec. 31, 2020 USD ($)
LOANS
Unpaid Principal Balance - with no allowance	$ 16,667,000	$ 13,211,000
Recorded Investment - with no allowance	10,789,000	9,736,000
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	7,225,000	8,082,000
Recorded investment - with allowance	7,225,000	8,082,000
Related Allowance - with allowance	883,000	925,000
Unpaid Principal Balance	23,892,000	21,293,000
Recorded Investment	18,014,000	17,818,000
Commercial
LOANS
Recorded Investment	3,496,000
Commercial | Real estate loan
LOANS
Unpaid Principal Balance - with no allowance	7,068,000	7,168,000
Recorded Investment - with no allowance	4,823,000	5,398,000
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	6,480,000	6,501,000
Recorded investment - with allowance	6,480,000	6,501,000
Related Allowance - with allowance	672,000	691,000
Commercial | Commercial and industrial
LOANS
Unpaid Principal Balance - with no allowance	5,930,000	1,781,000
Recorded Investment - with no allowance	3,526,000	1,287,000
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	72,000	72,000
Recorded investment - with allowance	72,000	72,000
Related Allowance - with allowance	72,000	72,000
Commercial | Loans secured by farm land
LOANS
Unpaid Principal Balance - with no allowance	84,000	84,000
Recorded Investment - with no allowance	84,000	84,000
Related Allowance - with no allowance	0	0
Commercial | Multi-family (5 or more) residential
LOANS
Unpaid Principal Balance - with no allowance	2,734,000	2,770,000
Recorded Investment - with no allowance	1,578,000	1,614,000
Related Allowance - with no allowance	$ 0	0
Residential mortgage
LOANS
Number borrowers collateralized by one property with specific allowance | borrower	2
Number of properties collateralized each loan | property	1
Residential mortgage | Real estate loan
LOANS
Related Allowance - with allowance	$ 139,000	153,000
Residential mortgage | Real estate loan | first liens
LOANS
Unpaid Principal Balance - with no allowance	786,000	1,248,000
Recorded Investment - with no allowance	760,000	1,248,000
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	374,000	1,200,000
Recorded investment - with allowance	374,000	1,200,000
Related Allowance - with allowance	0	9,000
Residential mortgage | Real estate loan | junior liens
LOANS
Unpaid Principal Balance - with no allowance	65,000	160,000
Recorded Investment - with no allowance	18,000	105,000
Related Allowance - with no allowance	0	0
Unpaid Principal Balance - with allowance	299,000	309,000
Recorded investment - with allowance	299,000	309,000
Related Allowance - with allowance	$ 139,000	$ 153,000

X

- Definition

Amount of allowance for credit losses not related to recorded investment.

+ References

No definition available.

+ Details

Name:	cznc_ImpairedFinancingReceivableNoRelatedAllowance
Namespace Prefix:	cznc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Number of properties that collateralized loans of borrowers.

+ References

No definition available.

+ Details

Name:	cznc_LoanCollateralPropertyNumber
Namespace Prefix:	cznc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of borrowers collateralized by one property and with specific allowance

+ References

No definition available.

+ Details

Name:	cznc_NumberOfBorrowersCollateralizedByOnePropertyWithSpecificAllowance
Namespace Prefix:	cznc_
Data Type:	xbrli:integerItemType
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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of investment of impaired financing receivables with related allowance for credit losses and without 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_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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 unpaid principal balance of impaired financing receivables with related allowance for credit losses and without 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 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of investment in impaired financing receivables for which there is no 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_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of unpaid principal balance of impaired financing receivables for which there is no 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 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

Unpaid principal balance of 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 15
-Subparagraph (a)(4)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

+ Details

Name:	us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
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_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_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
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: