XML 71 R61.htm IDEA: XBRL DOCUMENT
v3.23.2

Note 9 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022
Balance | $ 144,884 | $ 145,786 | $ 146,485 | $ 136,157 | $ 136,157
Provision/(reversal) for expected credit losses | 12,205 | 2,768 | 15,460 | 12,107 |
Charge-offs | (2,483) | (51) | (10,390) | (272) | (5,490)
Recoveries | 503 | 269 | 3,554 | 780 |
Net (charge-offs)/recoveries | (1,980) | 218 | (6,836) | 508 |
Balance | 155,109 | 148,772 | 155,109 | 148,772 | 146,485
Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 13,575 | 6,404 | 8,730 | 7,100 | 7,100
Provision/(reversal) for expected credit losses | (3,050) | (268) | 1,795 | (964) |
Balance | 10,525 | 6,136 | 10,525 | 6,136 | 8,730
Commercial Portfolio Segment [Member] |  |  |  |  |
Balance | 45,975 | 44,738 | 49,435 | 43,394 | 43,394
Provision/(reversal) for expected credit losses | 6,514 | 4,208 | 6,454 | 5,414 |
Charge-offs | (2,352) | (50) | (6,263) | (271) | (3,222)
Recoveries | 442 | 175 | 953 | 534 |
Net (charge-offs)/recoveries | (1,910) | 125 | (5,310) | 263 |
Balance | 50,579 | 49,071 | 50,579 | 49,071 | 49,435
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 8,275 | 3,177 | 4,840 | 3,725 | 3,725
Provision/(reversal) for expected credit losses | (1,291) | (373) | 2,144 | (921) |
Balance | 6,984 | 2,804 | 6,984 | 2,804 | 4,840
Real Estate Construction Portfolio Segment [Member] |  |  |  |  |
Balance | 10,900 | 7,436 | 10,417 | 6,302 | 6,302
Provision/(reversal) for expected credit losses | 1,851 | (160) | 2,334 | 968 |
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 6 |
Net (charge-offs)/recoveries | 0 | 0 | 0 | 6 |
Balance | 12,751 | 7,276 | 12,751 | 7,276 | 10,417
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 5,215 | 3,227 | 3,890 | 3,375 | 3,375
Provision/(reversal) for expected credit losses | (1,674) | 79 | (349) | (69) |
Balance | 3,541 | 3,306 | 3,541 | 3,306 | 3,890
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |
Balance | 70,367 | 63,878 | 68,366 | 61,081 | 61,081
Provision/(reversal) for expected credit losses | 3,249 | 4,634 | 6,712 | 7,336 |
Charge-offs | (130) | 0 | (4,120) | 0 | (2,091)
Recoveries | 61 | 88 | 2,589 | 183 |
Net (charge-offs)/recoveries | (69) | 88 | (1,531) | 183 |
Balance | 73,547 | 68,600 | 73,547 | 68,600 | 68,366
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 85 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | (85) | 26 | 0 | 26 |
Balance | 0 | 26 | 0 | 26 | 0
Residential Mortgage and Equity Lines Portfolio Segment [Member] |  |  |  |  |
Balance | 17,633 | 29,630 | 18,232 | 25,379 | 25,379
Provision/(reversal) for expected credit losses | 581 | (5,945) | (30) | (1,745) |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 6 | 12 | 57 |
Net (charge-offs)/recoveries | 0 | 6 | 12 | 57 |
Balance | 18,214 | 23,691 | 18,214 | 23,691 | 18,232
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0 | 0 | 0 |
Balance | 0 | 0 | 0 | 0 | 0
Installment and Other Loans [Member ] |  |  |  |  |
Balance | 9 | 104 | 35 | 1 | 1
Provision/(reversal) for expected credit losses | 10 | 31 | (10) | 134 |
Charge-offs | (1) | (1) | (7) | (1) | (177)
Recoveries | 0 | 0 | 0 | 0 |
Net (charge-offs)/recoveries | (1) | (1) | (7) | (1) |
Balance | 18 | 134 | 18 | 134 | 35
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member] |  |  |  |  |
Balance | 0 | 0 | 0 | 0 | 0
Provision/(reversal) for expected credit losses | 0 | 0 | 0 | 0 |
Balance | $ 0 | $ 0 | $ 0 | $ 0 | $ 0

X
- Definition Financing Receivable, Allowance For Credit Losses, Net Charge-Offs + References No definition available. + Details
Name: | caty_FinancingReceivableAllowanceForCreditLossesNetChargeOffs
Namespace Prefix: | caty_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) -Publisher SEC Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(4) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-79 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(3) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(2) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 + Details
Name: | us-gaap_ProvisionForLoanLeaseAndOtherLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=caty_RealEstateConstructionPortfolioSegmentMember
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: |

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