XML 109 R93.htm IDEA: XBRL DOCUMENT
v3.24.0.1

LOANS AND RELATED ALLOWANCE FOR CREDIT LOSSES, Trouble Debt Restructuring (Details) | 12 Months Ended
--- | ---
Dec. 31, 2022 USD ($) Contract | Dec. 31, 2021 USD ($) Contract
Recidivism receivables [Abstract] |  |
Recidivism | $ 0 | $ 0
Interest Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 0 | 0
Pre-modification outstanding recorded investment | $ 0 | $ 0
Post-modification outstanding recorded investment | $ 0 | $ 0
Term Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 7 | 8
Pre-modification outstanding recorded investment | $ 3,446,000 | $ 3,559,000
Post-modification outstanding recorded investment | $ 3,446,000 | $ 3,559,000
Real Estate Loans [Member] | Home Equity [Member] | Interest Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 0 |
Pre-modification outstanding recorded investment | $ 0 |
Post-modification outstanding recorded investment | $ 0 |
Real Estate Loans [Member] | Home Equity [Member] | Term Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 1 |
Pre-modification outstanding recorded investment | $ 8,000 |
Post-modification outstanding recorded investment | $ 8,000 |
Real Estate Loans [Member] | Commercial [Member] | Interest Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 0 | 0
Pre-modification outstanding recorded investment | $ 0 | $ 0
Post-modification outstanding recorded investment | $ 0 | $ 0
Real Estate Loans [Member] | Commercial [Member] | Term Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 4 | 4
Pre-modification outstanding recorded investment | $ 2,301,000 | $ 1,469,000
Post-modification outstanding recorded investment | $ 2,301,000 | $ 1,469,000
Real Estate Loans [Member] | Agricultural [Member] | Interest Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 0 | 0
Pre-modification outstanding recorded investment | $ 0 | $ 0
Post-modification outstanding recorded investment | $ 0 | $ 0
Real Estate Loans [Member] | Agricultural [Member] | Term Modification [Member] |  |
Financing receivable modifications [Abstract] |  |
Number of contracts | Contract | 2 | 4
Pre-modification outstanding recorded investment | $ 1,137,000 | $ 2,090,000
Post-modification outstanding recorded investment | $ 1,137,000 | $ 2,090,000

X
- References No definition available. + Details
Name: | czfs_FinancingReceivableModificationsAbstract
Namespace Prefix: | czfs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | czfs_SubsequentDefaultAbstract
Namespace Prefix: | czfs_
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 -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-42 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount, before troubled debt restructuring, of financing receivable to be modified. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-33 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortized cost of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 44 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-44 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-34 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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

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

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

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