XML 55 R41.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Deposits (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Disclosure Text Block [Abstract] |
Schedule Of Time Deposits [Table Text Block] | As of December 31, 2018, the contractual maturities of these time deposits were as follows (dollars in thousands):
2019 |  |  | 816,649 |
2020 |  |  | 360,259 |
2021 |  |  | 145,350 |
2022 |  |  | 32,532 |
2023 |  |  | 11,263 |
Total |  | $ | 1,366,053 |

X
- Definition Schedule Of Time Deposits [Table Text Block] + References No definition available. + Details
Name: | cnob_ScheduleOfTimeDepositsTableTextBlock
Namespace Prefix: | cnob_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration