XML 57 R46.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Note 7 - Loans - Troubled Debt Restructuring (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($)
Commercial Portfolio Segment [Member] |  |  |  |
No. of Loans | 7 | 2 | 11 | 3
Pre-Modification Recorded Investment | $ 18,258 | $ 306 | $ 23,102 | $ 1,156
Post-Modification Recorded Investment | 18,258 | 306 | 23,102 | 1,156
Charge-offs |  |  |  |
Special Reserve | $ 208 | $ 1 | $ 222 | $ 1
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
No. of Loans | 1 | 15 | 1 | 19
Pre-Modification Recorded Investment | $ 738 | $ 1,918 | $ 738 | $ 16,329
Post-Modification Recorded Investment | 738 | 1,918 | 738 | 16,329
Charge-offs |  |  |  |
Special Reserve |  |  |  | $ 38
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |
No. of Loans |  |  | 2 | 5
Pre-Modification Recorded Investment |  |  | $ 367 | $ 1,522
Post-Modification Recorded Investment |  |  | 367 | 1,374
Charge-offs |  |  |  | 148
Special Reserve |  |  |  | $ 45
No. of Loans | 8 | 17 | 14 | 27
Pre-Modification Recorded Investment | $ 18,996 | $ 2,224 | $ 24,207 | $ 19,007
Post-Modification Recorded Investment | 18,996 | 2,224 | 24,207 | 18,859
Charge-offs |  |  |  | 148
Special Reserve | $ 208 | $ 1 | $ 222 | $ 84

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: |