XML 81 R69.htm IDEA: XBRL DOCUMENT v3.20.2

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of Fair Value on a non-recurring basis - Impaired Loans [Member] $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Commercial Portfolio Segment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 13,024
Commercial Real Estate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	1,722
Commercial construction [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	2,632	$ 2,286
Non-recurring [Member] | Commercial Portfolio Segment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 13,024
Valuation Techniques	Market approach (100%)
Unobservable Input	Average transfer price as a price to unpaid principal balance
Non-recurring [Member] | Commercial Portfolio Segment [Member] | Market approach [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market range	63
Non-recurring [Member] | Commercial Portfolio Segment [Member] | Market approach [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market range	62
Non-recurring [Member] | Commercial Portfolio Segment [Member] | Market approach [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Market range	68
Non-recurring [Member] | Commercial Real Estate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 1,722
Valuation Techniques	Appraisals of collateral value
Unobservable Input	Adjustment for comparable sales
Non-recurring [Member] | Commercial Real Estate [Member] | Sales comparison approach [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	(8.00%)
Non-recurring [Member] | Commercial Real Estate [Member] | Sales comparison approach [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	(25.00%)
Non-recurring [Member] | Commercial Real Estate [Member] | Sales comparison approach [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	20.00%
Non-recurring [Member] | Commercial construction [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 2,632	$ 2,286
Valuation Techniques	Appraisals of collateral value	Appraisals of collateral value
Unobservable Input	Adjustment for comparable sales	Comparable sales
Non-recurring [Member] | Commercial construction [Member] | Sales comparison approach [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	(3.00%)	3.00%
Non-recurring [Member] | Commercial construction [Member] | Sales comparison approach [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	(13.00%)	0.00%
Non-recurring [Member] | Commercial construction [Member] | Sales comparison approach [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	6.00%	5.00%
Non-recurring [Member] | Residential Real Estate Portfolio Segment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 214	$ 240
Valuation Techniques	Appraisals of collateral value	Appraisals of collateral value
Unobservable Input	Adjustment for comparable sales	Comparable sales
Non-recurring [Member] | Residential Real Estate Portfolio Segment [Member] | Sales comparison approach [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	0.00%	9.00%
Non-recurring [Member] | Residential Real Estate Portfolio Segment [Member] | Sales comparison approach [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	(3.00%)	2.00%
Non-recurring [Member] | Residential Real Estate Portfolio Segment [Member] | Sales comparison approach [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Capitalization rate	11.00%	14.00%

X

- Definition

Description of fair value unobservable input.

+ References

No definition available.

+ Details

Name:	cnob_FairValueUnobservableInput
Namespace Prefix:	cnob_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Description of fair value valuation techniques.

+ References

No definition available.

+ Details

Name:	cnob_FairValueValuationTechniques
Namespace Prefix:	cnob_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Capitalization rate.

+ References

No definition available.

+ Details

Name:	cnob_MarketCapitalizationRate
Namespace Prefix:	cnob_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Market range.

+ References

No definition available.

+ Details

Name:	cnob_MarketMeasurementInput
Namespace Prefix:	cnob_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=cnob_ImpairedLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
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=us-gaap_ConstructionMember
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_ValuationTechniqueAxis=cnob_MarketApproachMember
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:	us-gaap_ValuationTechniqueAxis=cnob_SalesComparisonApproachMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: