XML 45 R56.htm IDEA: XBRL DOCUMENT
v3.19.3

Fair Value Measurements, Quantitative Information (Details) - Appraised Collateral Values [Member] $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) | Dec. 31, 2018 USD ($)
Impaired Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired Loans | $ 5,637 | $ 5,815
Impaired Loans [Member] | Minimum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Holding period | 0 months | 6 months
Impaired Loans [Member] | Maximum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Holding period | 12 months | 12 months
Impaired Loans [Member] | Weighted Average [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Holding period | 11 months 20 days | 11 months 18 days
Impaired Loans [Member] | Discount for Time Since Appraisal [Member] | Minimum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 0 | 0
Impaired Loans [Member] | Discount for Time Since Appraisal [Member] | Maximum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 1 | 1
Impaired Loans [Member] | Discount for Time Since Appraisal [Member] | Weighted Average [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 0.2017 | 0.1922
Impaired Loans [Member] | Selling Costs [Member] | Minimum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 0.05 | 0.05
Impaired Loans [Member] | Selling Costs [Member] | Maximum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 0.12 | 0.12
Impaired Loans [Member] | Selling Costs [Member] | Weighted Average [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired loans, Measurement input | 0.0890 | 0.0870
Other Real Estate Owned [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Impaired Loans | $ 3,386 | $ 532
Other Real Estate Owned [Member] | Discount for Time Since Appraisal [Member] | Minimum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Other real estate owned, Measurement input | 0.06 | 0.2
Other Real Estate Owned [Member] | Discount for Time Since Appraisal [Member] | Maximum [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Other real estate owned, Measurement input | 0.67 | 0.65
Other Real Estate Owned [Member] | Discount for Time Since Appraisal [Member] | Weighted Average [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Abstract] |  |
Other real estate owned, Measurement input | 0.1558 | 0.3144

X
- Definition Holding period, used as an input to measure fair value. + References No definition available. + Details
Name: | czfs_FairValueInputsHoldingPeriod
Namespace Prefix: | czfs_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of input used to measure investment in impaired loans at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References No definition available. + Details
Name: | czfs_ImpairedLoansMeasurementInput
Namespace Prefix: | czfs_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_OtherRealEstateOwnedMeasurementInput
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=czfs_ImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=czfs_AppraisedCollateralValuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputCostToSellMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=czfs_OtherRealEstateOwnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |