XML 145 R129.htm IDEA: XBRL DOCUMENT v3.3.1.900

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of Fair Value on a non-recurring basis - Impaired Loans [Member] - Appraisals Of Collateral Valuation Technique [Member]	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Commercial Portfolio Segment [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Valuation Technique	Appraisals of collateral value	Appraisals of collateral value
Commercial Portfolio Segment [Member] | Minimum [Member] | Market Capitalization [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	4.00%	4.00%
Commercial Portfolio Segment [Member] | Minimum [Member] | Sales [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	0.00%	0.00%
Commercial Portfolio Segment [Member] | Maximum [Member] | Market Capitalization [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	8.00%	8.00%
Commercial Portfolio Segment [Member] | Maximum [Member] | Sales [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	15.00%	15.00%
Commercial Real Estate Portfolio Segment [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Valuation Technique	Appraisals of collateral value	Appraisals of collateral value
Commercial Real Estate Portfolio Segment [Member] | Minimum [Member] | Market Capitalization [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	8.00%	8.00%
Commercial Real Estate Portfolio Segment [Member] | Maximum [Member] | Market Capitalization [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	12.00%	12.00%

X

- Definition

Cutstom Element.

+ References

No definition available.

+ Details

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

X

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Description of the inputs and valuation technique(s) used to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementsValuationTechniques
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_ValuationTechniqueAxis=cnob_AppraisalsOfCollateralValuationTechniqueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=cnob_MarketCapitalizationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_SalesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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