XML 122 R107.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Stockholders' Equity and Regulatory Requirements (Details) | Jan. 31, 2019 | Dec. 31, 2016
--- | --- | ---
STOCKHOLDERS' EQUITY AND REGULATORY REQUIREMENTS (Details) [Line Items] |  |
Capital conservation buffer percentage rate |  | 0.625%
Increase capital conservation buffer percentage rate on each subsequent year |  | 0.625%
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets |  | 3.157%
Total Risk Based Capital Ratio |  | 3.003%
Subsequent Event [Member] |  |
STOCKHOLDERS' EQUITY AND REGULATORY REQUIREMENTS (Details) [Line Items] |  |
Capital conservation buffer percentage rate | 2.50% |

X
- Definition Capital conservation buffer percentage rate. + References No definition available. + Details
Name: | cnob_CapitalConservationBufferPercentageRate
Namespace Prefix: | cnob_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Increase capital conservation buffer percentage rate on each subsequent year. + References No definition available. + Details
Name: | cnob_IncreaseCapitalConservationBufferPercentageRateOnEachSubsequentYear
Namespace Prefix: | cnob_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Cutstom Element. + References No definition available. + Details
Name: | cnob_STOCKHOLDERSEQUITYANDREGULATORYREQUIREMENTSDetailsLineItems
Namespace Prefix: | cnob_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total risk based capital ratio. + References No definition available. + Details
Name: | cnob_TotalRiskBasedCapitalRatio
Namespace Prefix: | cnob_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The minimum Tier One Capital Ratio (Tier one capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958568-112826 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=35709795&loc=SL5958570-112826 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1H -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35709795&loc=d3e65071-112826 + Details
Name: | us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |