XML 63 R51.htm IDEA: XBRL DOCUMENT
v3.25.1

Note 6 - Loans and the Allowance for Credit Losses - Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Gross loans | $ 8,206,343 | $ 8,280,482
Real Estate [Member] |  |
Gross loans | 35,618 | 43,054
Other Collateral Pledged [Member] |  |
Gross loans | 9,118 | 9,222
Collateral Pledged [Member] |  |
Gross loans | 44,736 | 52,276
Commercial Portfolio Segment [Member] |  |
Gross loans | 1,492,920 | 1,532,730
Commercial Portfolio Segment [Member] | Real Estate [Member] |  |
Gross loans | 2,264 | 2,308
Commercial Portfolio Segment [Member] | Other Collateral Pledged [Member] |  |
Gross loans | 9,118 | 9,222
Commercial Portfolio Segment [Member] | Collateral Pledged [Member] |  |
Gross loans | 11,382 | 11,530
Commercial Real Estate Portfolio Segment [Member] |  |
Gross loans | 5,837,671 | 5,880,679
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] |  |
Gross loans | 29,109 | 36,486
Commercial Real Estate Portfolio Segment [Member] | Other Collateral Pledged [Member] |  |
Gross loans | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Collateral Pledged [Member] |  |
Gross loans | 29,109 | 36,486
Commercial Construction Portfolio Segment [Member] |  |
Gross loans | 617,593 | 616,246
Commercial Construction Portfolio Segment [Member] | Real Estate [Member] |  |
Gross loans | 2,204 | 2,204
Commercial Construction Portfolio Segment [Member] | Other Collateral Pledged [Member] |  |
Gross loans | 0 | 0
Commercial Construction Portfolio Segment [Member] | Collateral Pledged [Member] |  |
Gross loans | 2,204 | 2,204
Residential Portfolio Segment [Member] |  |
Gross loans | 256,555 | 249,691
Residential Portfolio Segment [Member] | Real Estate [Member] |  |
Gross loans | 2,041 | 2,056
Residential Portfolio Segment [Member] | Other Collateral Pledged [Member] |  |
Gross loans | 0 | 0
Residential Portfolio Segment [Member] | Collateral Pledged [Member] |  |
Gross loans | $ 2,041 | $ 2,056

X
- Definition Amortized cost, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_FinancingReceivableBeforeAllowanceForCreditLossAndFee
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=cnob_OtherCollateralPledgedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_CollateralPledgedMember
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=cnob_CommercialConstructionPortfolioSegmentMember
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: |