XML 49 R37.htm IDEA: XBRL DOCUMENT v3.10.0.1

Loans, Troubled Debt Restructurings Segregated by Class (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($) Loan	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2018 USD ($) Loan	Jun. 30, 2017 USD ($) Loan	Dec. 31, 2017 USD ($) Loan
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	13	14	29	18	43
Post-Modification Outstanding Balance	$ 2,467	$ 1,900	$ 4,465	$ 2,325	$ 5,547
Commitment to extend additional credit on loans modified in TDRs	$ 100		$ 100
Defaulted restructured loans, number of loans | Loan	2	0	2	0
Defaulted restructured loans, recorded balance	$ 42	$ 0	$ 42	$ 0
Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	2,467	1,458	3,467	1,883	5,105
Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 0	$ 442	$ 998	$ 442	$ 442
Commercial [Member] | Construction [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	2	2	4	2	2
Post-Modification Outstanding Balance	$ 411	$ 114	$ 458	$ 114	$ 114
Commercial [Member] | Construction [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	411	0	443	0	0
Commercial [Member] | Construction [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Construction [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 0	$ 114	$ 15	$ 114	$ 114
Commercial [Member] | Real Estate [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	8	4	17	5	15
Post-Modification Outstanding Balance	$ 1,773	$ 722	$ 3,542	$ 771	$ 2,391
Defaulted restructured loans, number of loans | Loan	1	0	1	0
Defaulted restructured loans, recorded balance	$ 17	$ 0	$ 17	$ 0
Commercial [Member] | Real Estate [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	1,773	530	2,559	579	2,199
Commercial [Member] | Real Estate [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Real Estate [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 0	$ 192	$ 983	$ 192	$ 192
Commercial [Member] | Other [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan	3	7	8	9	22
Post-Modification Outstanding Balance	$ 283	$ 218	$ 465	$ 271	$ 1,208
Defaulted restructured loans, number of loans | Loan	1	0	1	0
Defaulted restructured loans, recorded balance	$ 25	$ 0	$ 25	$ 0
Commercial [Member] | Other [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	283	82	465	135	1,072
Commercial [Member] | Other [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	0	0	0	0	0
Commercial [Member] | Other [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance	$ 0	$ 136	$ 0	$ 136	$ 136
Residential [Member] | Construction [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan		1		1	1
Post-Modification Outstanding Balance		$ 846		$ 846	$ 846
Residential [Member] | Construction [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		846		846	846
Residential [Member] | Construction [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		0		0	0
Residential [Member] | Construction [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance		$ 0		$ 0	$ 0
Residential [Member] | Real Estate [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Number of Loans | Loan				1	3
Post-Modification Outstanding Balance				$ 323	$ 988
Residential [Member] | Real Estate [Member] | Term Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance				323	988
Residential [Member] | Real Estate [Member] | Rate Modification [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance				0	0
Residential [Member] | Real Estate [Member] | Combination [Member]
Troubled Debt Restructurings Segregated by Class [Abstract]
Post-Modification Outstanding Balance				$ 0	$ 0

X

- References

No definition available.

+ Details

Name:	ctbi_FinancingReceivableModificationsTroubledDebtRestructuredLoansAbstract
Namespace Prefix:	ctbi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524

+ Details

Name:	us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Reflects the unfunded portion of contractual agreements to lend funds to borrowers for loans whose terms have been modified by troubled debt restructuring.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18794-111554

+ Details

Name:	us-gaap_LoansAndLeasesReceivableImpairedCommitmentToLend
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ExtendedMaturityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_ContractualInterestRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=ctbi_ExtendedMaturityAndRateReductionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: