Floating interest rate on subordinated debentures.

No definition available.

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- Definition

Percentage rate added to LIBOR.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Cutstom Element.

+ References

No definition available.

+ Details

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- Definition

Value of subordinated debentures received by Trust.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

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Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Balance Type:	debit
Period Type:	instant

- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=cnob_FixedToFloatingRateSubordinated2018NotesMember
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- Details

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Subordinated Debentures (Details) - USD ($) $ in Millions			1 Months Ended	6 Months Ended
Subordinated Debentures (Details) - USD ($) $ in Millions	Jun. 10, 2020	Jan. 11, 2018	Jun. 30, 2015	Jun. 30, 2020
Fixed-to-floating Rate Subordinated Notes [Member]
Subordinated Debentures (Details) [Line Items]
Proceeds from Issuance of Debt			$ 50.0
Debt Instrument, Term			5 years
Debt Instrument, Maturity Date			Jul. 01, 2025
Debt Instrument, Interest Rate, Stated Percentage			5.75%
Debt Instrument, Description of Variable Rate Basis			three-month LIBOR rate plus 393 basis points
Subordinated Debt from Trust [Member]
Subordinated Debentures (Details) [Line Items]
Value of subordinated debentures received by Trust				$ 5.0
Percentage Rate Added to Libor				2.85%
Floating interest rate on subordinated debentures				3.61%
Proceeds from Issuance of Debt				$ 5.2
Debt Instrument, Maturity Date				Jan. 23, 2034
Fixed-to-floating Rate Subordinated 2018 Notes [Member]
Subordinated Debentures (Details) [Line Items]
Percentage Rate Added to Libor		2.84%
Proceeds from Issuance of Debt		$ 75.0
Debt Instrument, Interest Rate, Stated Percentage		5.20%
Debt Instrument, Description of Variable Rate Basis		three-month LIBOR rate plus 284 basis points
Unamortized debt issuance costs				$ 1.1
Fixed-to-floating Rate Subordinated 2020 Notes [Member]
Subordinated Debentures (Details) [Line Items]
Proceeds from Issuance of Debt	$ 75.0
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Debt Instrument, Description of Variable Rate Basis	Three-Month Term SOFR (as defined in the Second Supplemental Indenture), plus 560.5 basis points
Unamortized debt issuance costs				$ 1.6