XML 67 R56.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 6 - Fair Value Measurements and Fair Value of Financial Instruments - Assets Measured on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Commercial Portfolio Segment [Member] |  |
Collateral dependent loans | $ 11,635 | $ 14,550
Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Collateral dependent loans | 0 | 0
Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Collateral dependent loans | 0 | 0
Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Collateral dependent loans | 11,635 | 14,550
Commercial Real Estate Portfolio Segment [Member] |  |
Collateral dependent loans | 10,428 | 17,264
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Collateral dependent loans | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Collateral dependent loans | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Collateral dependent loans | 10,428 | 17,264
Residential Portfolio Segment [Member] |  |
Collateral dependent loans | 1,363 | 1,392
Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Collateral dependent loans | 0 | 0
Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Collateral dependent loans | 0 | 0
Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Collateral dependent loans | $ 1,363 | $ 1,392

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

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
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_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: |