XML 133 R120.htm IDEA: XBRL DOCUMENT
v3.22.4

Note 20 - Fair Value Measurements and Fair Value of Financial Instruments - Significant Unobservable Inputs for Assets Measured on Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] $ in Thousands | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
--- | --- | ---
Commercial Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | $ 14,550 | $ 13,399
Commercial Real Estate Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | 17,264 | 20,185
Residential Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | 1,392 | 2,794
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | 14,550 | 13,399
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Average Transfer Price as Price to Unpaid Principal Balance [Member] |  |
Collateral dependent loans, fair value | $ 14,028 | $ 12,193
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Average Transfer Price as Price to Unpaid Principal Balance [Member] | Minimum [Member] |  |
Collateral dependent loans, rate | 0.65 | 0.48
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Average Transfer Price as Price to Unpaid Principal Balance [Member] | Maximum [Member] |  |
Collateral dependent loans, rate | 0.96 | 0.73
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Average Transfer Price as Price to Unpaid Principal Balance [Member] | Weighted Average [Member] |  |
Collateral dependent loans, rate | 0.67 | 0.49
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, fair value | $ 522 | $ 1,206
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Minimum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.10 | 0.10
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Maximum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.13 | 0.35
Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Weighted Average [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.03 | 0.06
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | $ 17,264 | $ 20,185
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, fair value | $ 17,264 | $ 20,185
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Minimum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.20 | 0.20
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Maximum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0 | 0.15
Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Weighted Average [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.15 | 0.06
Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member] |  |
Collateral dependent loans, fair value | $ 1,392 | $ 2,794
Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, fair value | $ 1,392 | $ 2,794
Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Minimum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.21 | 0.15
Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Maximum [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.39 | 0.39
Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member] | Measurement Input, Comparability Adjustment [Member] | Weighted Average [Member] | Appraisals of Collateral Value [Member] |  |
Collateral dependent loans, rate | 0.22 | 0.05

X
- Definition Fair value portion of impaired financing receivable. + References No definition available. + Details
Name: | cnob_ImpairedFinancingReceivableFairValueDisclosure
Namespace Prefix: | cnob_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Value of input used to measure impaired loan. + References No definition available. + Details
Name: | cnob_ImpairedLoansMeasurementInput
Namespace Prefix: | cnob_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
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_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
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_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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