XML 81 R67.htm IDEA: XBRL DOCUMENT
v3.6.0.2

Note 5 - Loans - Troubled Debt Restructuring (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
No. of Contracts | 30 | 28 | 14
Pre-Modification Outstanding Recorded Investment | $ 34,735 | $ 19,906 | $ 25,071
Post-Modification Outstanding Recorded Investment | 33,905 | 19,759 | 25,071
Specific Reserve | 1,780 | 752 | 5,600
Charge-offs | $ 830 | $ 148 |
Commercial Portfolio Segment [Member] |  |  |
No. of Contracts | 24 | 3 | 4
Pre-Modification Outstanding Recorded Investment | $ 30,215 | $ 1,181 | $ 10,539
Post-Modification Outstanding Recorded Investment | 29,385 | 1,181 | 10,539
Specific Reserve | 1,746 | 2 | 21
Charge-offs | $ 830 |  |
Commercial Real Estate Portfolio Segment [Member] |  |  |
No. of Contracts | 4 | 20 | 3
Pre-Modification Outstanding Recorded Investment | $ 4,153 | $ 17,204 | $ 11,817
Post-Modification Outstanding Recorded Investment | 4,153 | 17,204 | 11,817
Specific Reserve | 34 | 708 | 5,550
Charge-offs |  |  |
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |
No. of Contracts | 2 | 5 | 7
Pre-Modification Outstanding Recorded Investment | $ 367 | $ 1,521 | $ 2,715
Post-Modification Outstanding Recorded Investment | 367 | 1,374 | 2,715
Specific Reserve |  | 42 | 29
Charge-offs |  | $ 148 |

X
- Definition The amount of the special reserve related to financing receivables that have been modified by troubled debt restructurings. + References No definition available. + Details
Name: | caty_FinancingReceivableModificationsSpecialReserve
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Pre-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=caty_ResidentialMortgageAndEquityLinesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |