XML 32 R47.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Investment Securities (Schedule of Unrealized Losses Not Recognized in Income) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2014 | Dec. 31, 2013
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | $ 57,445 | $ 91,251
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (1,224) | (2,600)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 4,968 | 4,512
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (479) | (437)
Investment Securities Available-for-Sale: Total, fair value | 62,413 | 95,763
Investment Securities Available-for-Sale: Total, unrealized losses | (1,703) | (3,037)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 87,941 | 128,093
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (1,478) | (5,112)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 17,543 | 9,257
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | (725) | (732)
Investment Securities Held-to-Maturity: Total, fair value | 105,484 | 137,350
Investment Securities Held-to-Maturity: Total, unrealized losses | (2,203) | (5,844)
Temporarily Impaired Securities, Total Fair Value | 167,897 | 233,113
Temporarily Impaired Securities, Total Unrealized Losses | (3,906) | (8,881)
Temporarily Impaired Securities, Less than 12 Months, Fair Value | 145,386 | 219,344
Temporarily Impaired Securities, Less than 12 Months, unrealized losses | (2,702) | (7,712)
Temporarily Impaired Securities, 12 months or longer, Fair Value | 22,511 | 13,769
Temporarily Impaired Securities, 12 months or longer, unrealized losses | (1,204) | (1,169)
U.S. treasury notes [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 13,896 | 13,519
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (465) | (825)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 0 | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Available-for-Sale: Total, fair value | 13,896 | 13,519
Investment Securities Available-for-Sale: Total, unrealized losses | (465) | (825)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 27,793 | 27,037
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (315) | (1,019)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 0 | 0
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Held-to-Maturity: Total, fair value | 27,793 | 27,037
Investment Securities Held-to-Maturity: Total, unrealized losses | (315) | (1,019)
Federal agency obligations [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 19,032 | 17,200
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (275) | (655)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 476 | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (39) | 0
Investment Securities Available-for-Sale: Total, fair value | 19,508 | 17,200
Investment Securities Available-for-Sale: Total, unrealized losses | (314) | (655)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 5,751 | 13,197
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (71) | (388)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 0 | 295
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | 0 | (1)
Investment Securities Held-to-Maturity: Total, fair value | 5,751 | 13,492
Investment Securities Held-to-Maturity: Total, unrealized losses | (71) | (389)
Commercial mortgage-backed securities [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 2,963 | 2,924
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (116) | (157)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 0 | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Available-for-Sale: Total, fair value | 2,963 | 2,924
Investment Securities Available-for-Sale: Total, unrealized losses | (116) | (157)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 1,402 | 1,395
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (39) | (62)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 0 | 0
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Held-to-Maturity: Total, fair value | 1,402 | 1,395
Investment Securities Held-to-Maturity: Total, unrealized losses | (39) | (62)
Residential mortgage-backed securities [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 5,344 | 18,293
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (102) | (229)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 0 | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Available-for-Sale: Total, fair value | 5,344 | 18,293
Investment Securities Available-for-Sale: Total, unrealized losses | (102) | (229)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 2,125 | 2,182
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (35) | (64)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 0 | 0
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Held-to-Maturity: Total, fair value | 2,125 | 2,182
Investment Securities Held-to-Maturity: Total, unrealized losses | (35) | (64)
Obligations of U.S. states and political subdivisions [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value |  | 4,199
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses |  | (55)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value |  | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses |  | 0
Investment Securities Available-for-Sale: Total, fair value |  | 4,199
Investment Securities Available-for-Sale: Total, unrealized losses |  | (55)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 39,474 | 57,072
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (960) | (2,957)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 17,543 | 8,962
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | (725) | (731)
Investment Securities Held-to-Maturity: Total, fair value | 57,017 | 66,034
Investment Securities Held-to-Maturity: Total, unrealized losses | (1,685) | (3,688)
Trust preferred securities [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 0 | 4,031
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | 0 | (211)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 1,278 | 1,275
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (296) | (299)
Investment Securities Available-for-Sale: Total, fair value | 1,278 | 5,306
Investment Securities Available-for-Sale: Total, unrealized losses | (296) | (510)
Corporate bonds and notes [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 11,440 | 30,533
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (112) | (448)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 1,947 | 1,965
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (36) | (34)
Investment Securities Available-for-Sale: Total, fair value | 13,387 | 32,498
Investment Securities Available-for-Sale: Total, unrealized losses | (148) | (482)
Investment Securities Held-to-Maturity: Less than 12 months, fair value | 11,396 | 27,210
Investment Securities Held-to-Maturity: Less than 12 months, unrealized losses | (58) | (622)
Investment Securities Held-to-Maturity: 12 months or longer, fair value | 0 | 0
Investment Securities Held-to-Maturity: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Held-to-Maturity: Total, fair value | 11,396 | 27,210
Investment Securities Held-to-Maturity: Total, unrealized losses | (58) | (622)
Certificates of Deposit [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 415 | 552
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (9) | (20)
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 0 | 0
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | 0 | 0
Investment Securities Available-for-Sale: Total, fair value | 415 | 552
Investment Securities Available-for-Sale: Total, unrealized losses | (9) | (20)
Equity securities [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 0 | 0
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | 0 | 0
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 292 | 287
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (84) | (89)
Investment Securities Available-for-Sale: Total, fair value | 292 | 287
Investment Securities Available-for-Sale: Total, unrealized losses | (84) | (89)
Mutual funds and money market funds [Member] |  |
Schedule of Investments [Line Items] |  |
Investment Securities Available-for-Sale: Less than 12 months, fair value | 4,355 | 0
Investment Securities Available-for-Sale: Less than 12 months, unrealized losses | (145) | 0
Investment Securities Available-for-Sale: 12 Months or Longer, fair value | 975 | 985
Investment Securities Available-for-Sale: 12 months or longer, unrealized losses | (24) | (15)
Investment Securities Available-for-Sale: Total, fair value | 5,330 | 985
Investment Securities Available-for-Sale: Total, unrealized losses | $ (169) | $ (15)

X
- Definition Temporarily Impaired Securities, 12 months or longer, Aggregate losses + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecurities12MonthsOrLongerAggregateLosses
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Temporarily Impaired Securities, 12 months or longer, Fair Value + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecurities12MonthsOrLongerFairValue
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Temporarily Impaired Securities, Less than 12 Months, Aggregate Losses + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecuritiesLessThan12MonthsAggregateLosses
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Temporarily Impaired Securities, Less than 12 Months, Fair Value + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecuritiesLessThan12MonthsFairValue
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Temporarily Impaired Securities, Total Fair Value + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecuritiesTotalFairValue
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Temporarily Impaired Securities, Total Unrealized Losses + References No definition available. + Details
Name: | cnbc_TemporarilyImpairedSecuritiesTotalUnrealizedLosses
Namespace Prefix: | cnbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unrealized loss on securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized loss on investments in held-to-maturity securities that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldtomaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of unrealized loss on investments in held-to-maturity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionAggregateLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the fair value of securities categorized as held-to-maturity which are in an unrealized loss position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unrealized loss before deducting unrealized gain on investments in held-to-maturity securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldtomaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents the fair value of securities categorized as held-to-maturity that have been in a continuous unrealized loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the fair value of securities categorized as held-to-maturity securities that have been in a continuous unrealized loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_ScheduleOfInvestmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration