XML 90 R79.htm IDEA: XBRL DOCUMENT
v3.20.2

BORROWED FUNDS AND SUBORDINATED DEBT -Subordinated Debt Additional Information (Details) - USD ($) | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
6.25% maturing in June 2026 and redeemable at par in June 2021 |  |
Aggregate par value | $ 8,000,000 | $ 8,000,000
Stated interest rate | 6.25% | 6.25%
6.50% maturing in April 2027 and redeemable at par in April 2022 |  |
Aggregate par value | $ 6,500,000 | $ 6,500,000
Stated interest rate | 6.50% | 6.50%
6.50% maturing in July 2027 and redeemable at par in July 2022 |  |
Aggregate par value | $ 2,000,000 | $ 2,000,000
Stated interest rate | 6.50% | 6.50%

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cznc_SixPointTwoFivePercentSubordinateDebtMaturingInJune2026AndRedeemableAtParInJune2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cznc_SixPointFiveZeroPercentSubordinateDebtMaturingInApril2027AndRedeemableAtParInApril2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=cznc_SixPointFiveZeroPercentSubordinateDebtMaturingInJuly2027AndRedeemableAtParInJuly2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |