Cathay General Bancorp (CATY) 10-K 28 Feb 23 2022 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Feb. 15, 2023	Jun. 30, 2022
Document Information [Line Items]
Entity Central Index Key	0000861842
Entity Registrant Name	Cathay General Bancorp
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-31830
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-4274680
Entity Address, Address Line One	777 North Broadway
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90012
City Area Code	213
Local Phone Number	625-4700
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	CATY
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 2,768,182,154
Entity Common Stock, Shares Outstanding		72,556,149
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Location	Los Angeles, California

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and due from banks	$ 195,440	$ 134,141
Short-term investments and interest-bearing deposits	966,962	2,315,563
Securities available-for-sale (amortized cost of $1,622,173 in 2022 and $1,126,867 in 2021)	1,473,348	1,127,309
Loans	18,254,024	16,342,479
Less: Allowance for loan losses	(146,485)	(136,157)
Unamortized deferred loan fees, net	(6,641)	(4,321)
Loans, net	18,100,898	16,202,001
Equity securities	22,158	22,319
Federal Home Loan Bank stock	17,250	17,250
Other real estate owned, net	4,067	4,368
Affordable housing investments and alternative energy partnerships, net	327,128	299,211
Premises and equipment, net	94,776	99,402
Customers’ liability on acceptances	2,372	8,112
Accrued interest receivable	82,428	56,994
Goodwill	375,696	372,189
Other intangible assets, net	5,757	4,627
Right-of-use assets- operating leases	29,627	27,834
Other assets	250,069	195,403
Total assets	21,947,976	20,886,723
Deposits:
Non-interest-bearing demand deposits	4,168,989	4,492,054
Interest-bearing deposits:
NOW deposits	2,509,736	2,522,442
Money market deposits	3,812,724	4,611,579
Savings deposits	1,000,460	915,515
Time deposits	7,013,370	5,517,252
Total deposits	18,505,279	18,058,842
Advances from the Federal Home Loan Bank	485,000	20,000
Other borrowings for affordable housing investments	22,600	23,145
Long-term debt	119,136	119,136
Acceptances outstanding	2,372	8,112
Lease liabilities - operating leases	32,518	30,694
Other liabilities	307,031	180,543
Total liabilities	19,473,936	18,440,472
Commitments and contingencies
Stockholders’ Equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 91,090,614 issued and 72,742,151 outstanding at December 31, 2022, and 90,871,860 issued and 75,750,862 outstanding at December 31, 2021	911	909
Additional paid-in-capital	981,119	972,474
Accumulated other comprehensive income/(loss), net	(102,295)	(3,065)
Retained earnings	2,244,856	1,985,168
Treasury stock, at cost (18,348,463 shares at December 31, 2022, and 15,120,998 shares at December 31, 2021)	(650,551)	(509,235)
Total equity	2,474,040	2,446,251
Total liabilities and equity	$ 21,947,976	$ 20,886,723

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities available-for-sale, amortized cost	$ 1,622,173	$ 1,126,867
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	91,090,614	90,871,860
Common stock, shares outstanding (in shares)	72,742,151	75,750,862
Treasury stock shares (in shares)	18,348,463	15,120,998

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest and Dividend Income
Loan receivable	$ 801,981	$ 649,224	$ 677,193
Investment securities	28,240	14,151	20,599
Federal Home Loan Bank stock	1,103	991	952
Deposits with banks	19,957	2,145	1,830
Total interest and dividend income	851,281	666,511	700,574
Interest Expense
Time deposits	56,354	40,542	111,629
Other deposits	48,942	21,259	25,396
Advances from the Federal Home Loan Bank	5,880	1,182	5,299
Long-term debt	5,546	5,773	5,791
Deferred payments from acquisition	0	0	115
Short-term borrowings	862	0	234
Total interest expense	117,584	68,756	148,464
Net interest income before provision/(reversal) for credit losses	733,697	597,755	552,110
Provision/(reversal) for credit losses	(14,543)	16,008	(57,500)
Net interest income after provision/(reversal) for credit losses	719,154	613,763	494,610
Non-Interest Income
Net gains/(losses) from equity securities	392	(1,426)	(1,148)
Securities gains, net	0	853	1,695
Letters of credit commissions	6,351	7,103	6,741
Other operating income	27,112	27,433	20,054
Total non-interest income	56,814	54,603	42,820
Non-Interest Expense
Salaries and employee benefits	142,546	132,795	124,022
Occupancy expense	22,808	20,318	20,634
Computer and equipment expense	13,603	13,549	11,133
Professional services expense	28,237	23,666	21,856
Data processing service expense	13,181	13,607	14,897
FDIC and State assessments	8,037	7,132	8,999
Marketing expense	6,863	6,913	5,224
Other real estate owned expense/(income)	127	343	(3,091)
Amortization of investments in low income housing and alternative energy partnerships	42,065	45,447	58,225
Amortization of core deposit premium	1,892	687	687
Cost associated with debt redemption	0	732	693
Acquisition, integration and reorganization costs	4,127	1,425	0
Other operating expense	19,946	19,909	20,186
Total non-interest expense	303,432	286,523	283,465
Income before income tax expense	472,536	381,843	253,965
Income tax expense	111,894	83,539	25,105
Net income	360,642	298,304	228,860
Other Comprehensive Income/(Loss), Net of Tax:
Net holding (losses)/gains on securities available-for-sale	(105,043)	(11,989)	6,486
Loss, net of taxes (1)	5,813	3,614	(3,478)
Total other comprehensive income/(loss), net of tax	(99,230)	(8,375)	3,008
Total comprehensive income/(loss)	$ 261,412	$ 289,929	$ 231,868
Net Income Per Common Share
Basic (in dollars per share)	$ 4.85	$ 3.81	$ 2.88
Diluted (in dollars per share)	4.83	3.80	2.87
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)	$ 1.36	$ 1.27	$ 1.24
Average Common Shares Outstanding:
Basic (in shares)	74,337,265	78,268,369	79,584,560
Diluted (in shares)	74,664,735	78,570,638	79,777,847
Deposit Account [Member]
Non-Interest Income
Non-Interest Income	$ 6,523	$ 5,584	$ 4,949
Asset Management [Member]
Non-Interest Income
Non-Interest Income	$ 16,436	$ 15,056	$ 10,529

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands		Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock Outstanding [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Additional Paid-in Capital [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Treasury Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Balance (in shares) at Dec. 31, 2019								79,729,419
Beginning balance, loss, net of tax at Dec. 31, 2019								$ 900	$ 950,466	$ 2,302	$ 1,659,153	$ (318,538)	$ 2,294,283
Dividend Reinvestment Plan (in shares)								358,157					358,157
Dividend Reinvestment Plan								$ 4	9,773	0	0	0	$ 9,777
Restricted stock units vested (in shares)								189,557
Restricted stock units vested								$ 2	0	0	0	0	2
Shares withheld related to net share settlement of RSUs								$ 0	(1,911)	0	0	0	(1,911)
Stock issued to directors (in shares)								31,110
Stock issued to directors								$ 0	800	0	0	0	800
Purchases of treasury stock (in shares)								(799,978)
Purchases of treasury stock								$ 0	0	0	0	(23,593)	(23,593)
Stock -based compensation								0	5,606	0	0	0	5,606
Cash dividends								0	0	0	(98,688)	0	(98,688)
Other comprehensive income/(loss)								0	0	3,008	0	0	3,008
Net income								$ 0	0	0	228,860	0	228,860
Balance (in shares) at Dec. 31, 2020								79,508,265
Ending balance, loss, net of tax (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2020	[1]	$ 0	$ 0	$ 0	$ (3,139)	$ 0	$ (3,139)
Ending balance, loss, net of tax at Dec. 31, 2020								$ 906	964,734	5,310	1,789,325	(342,131)	$ 2,418,144
Dividend Reinvestment Plan (in shares)								84,011					84,011
Dividend Reinvestment Plan								$ 1	3,562	0	0	0	$ 3,563
Restricted stock units vested (in shares)								123,893
Restricted stock units vested								$ 2	0	0	0	0	2
Shares withheld related to net share settlement of RSUs								$ 0	(2,632)	0	0	0	(2,632)
Stock issued to directors (in shares)								20,750
Stock issued to directors								$ 0	850	0	0	0	850
Purchases of treasury stock (in shares)								(3,986,057)
Purchases of treasury stock								$ 0	0	0	0	(167,104)	(167,104)
Stock -based compensation								0	5,960	0	0	0	5,960
Cash dividends								0	0	0	(99,322)	0	(99,322)
Other comprehensive income/(loss)								0	0	(8,375)	0	0	(8,375)
Net income								$ 0	0	0	298,304	0	298,304
Balance (in shares) at Dec. 31, 2021								75,750,862
Ending balance, loss, net of tax at Dec. 31, 2021								$ 909	972,474	(3,065)	1,985,168	(509,235)	$ 2,446,251
Dividend Reinvestment Plan (in shares)								86,501					86,501
Dividend Reinvestment Plan								$ 1	3,718	0	0	0	$ 3,719
Restricted stock units vested (in shares)								112,473
Restricted stock units vested								$ 1	0	0	0	0	1
Shares withheld related to net share settlement of RSUs								$ 0	(2,905)	0	0	0	(2,905)
Stock issued to directors (in shares)								19,780
Stock issued to directors								$ 0	849	0	0	0	$ 849
Purchases of treasury stock (in shares)								(3,227,465)					(3,227,465)
Purchases of treasury stock								$ 0	0	0	0	(141,315)	$ (141,315)
Stock -based compensation								0	6,983	0	0	0	6,983
Cash dividends								0	0	0	(100,955)	0	(100,955)
Other comprehensive income/(loss)								0	0	(99,230)	0	0	(99,230)
Net income								$ 0	0	0	360,642	0	360,642
Balance (in shares) at Dec. 31, 2022								72,742,151
Ending balance, loss, net of tax at Dec. 31, 2022								$ 911	$ 981,119	$ (102,295)	$ 2,244,855	$ (650,550)	$ 2,474,040
[1]Represents the impact of the adoption of Accounting Standards Update ASU 2016-13, Financial Instruments - Credit Losses (Topic 326) on January 1, 2021.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Retained Earnings [Member]
Cash dividends (in dollars per share)	$ 1.36	$ 1.27	$ 1.24
Cash dividends (in dollars per share)	$ 1.36	$ 1.27	$ 1.24

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income	$ 360,642	$ 298,304	$ 228,860
Adjustments to reconcile net income to net cash provided by operating activities:
Provision/(reversal) for credit losses	14,543	(16,008)	57,500
Provision for losses on other real estate owned	0	17	717
Deferred tax (benefit)/ provision	(2,088)	9,168	(9,486)
Depreciation and amortization	9,958	7,956	7,660
Amortization of right-of-use asset	9,845	8,160	8,852
Change in operating lease liabilities	(4,629)	(2,790)	(2,389)
Net gains on sale and transfers of other real estate owned	(6)	(57)	(4,216)
Net gains on sale of loans	(1)	(357)	(413)
Proceeds from sale of loans	33	5,351	11,098
Originations of loans held for sale	0	(4,994)	(10,685)
Loss on sales or disposal of fixed assets	67	55	45
Amortization of alternative energy partnerships, venture capital and other investments	42,065	45,447	58,131
Net gain on sales and calls of securities	(101)	(853)	(1,695)
Amortization/accretion of security premiums/discount, net	2,465	7,865	8,617
Unrealized loss/(gain) on equity securities	(291)	2,036	1,148
Stock-based compensation and stock issued to officers as compensation	7,832	6,810	6,406
Net change in accrued interest receivable and other assets	(80,411)	(34,196)	(21,247)
Net change in other liabilities	107,467	2,403	(18,948)
Net cash provided by operating activities	467,390	334,317	319,955
Cash Flows from Investing Activities
Purchase of investment securities available-for-sale	(711,707)	(560,140)	(434,165)
Proceeds from repayment, maturity, and call of investment securities available-for-sale	213,936	424,386	734,485
Proceeds from sale of investment securities available-for-sale	0	21,102	117,249
Proceeds from sale of equity securities	553	0	3,112
Purchase of Federal Home Loan Bank stock	(9,776)	0	(840)
Redemption of Federal Home Loan Bank stock	9,776	0	1,680
Net increase in loans	(1,272,268)	(715,862)	(583,136)
Purchase of premises and equipment	(3,390)	(3,728)	(5,778)
Benefits received on bank owned life insurance	4,013	2,752	0
Proceeds from sales of other real estate owned	307	795	4,308
Net increase in investment in affordable housing and alternative energy partnerships	(6,995)	(29,229)	(79,119)
Acquisitions, net of cash acquired	(73,882)	0	0
Net cash used for investing activities	(1,849,433)	(859,924)	(242,204)
Cash Flows from Financing Activities
(Decrease)/increase in deposits	(128,803)	1,949,728	1,417,310
Advances from Federal Home Loan Bank	465,000	50,000	1,450,000
Repayment of Federal Home Loan Bank borrowings	0	(180,000)	(1,970,000)
Cash dividends paid	(100,955)	(99,322)	(98,688)
Purchase of treasury stock	(141,316)	(167,104)	(23,593)
Repayment of short-term borrowings	0	0	(25,683)
Repayment of other borrowings	0	0	(7,663)
Proceeds from shares issued under Dividend Reinvestment Plan	3,720	3,563	9,777
Taxes paid related to net share settlement of RSUs	(2,905)	(2,632)	(1,911)
Net cash provided by financing activities	94,741	1,554,233	749,549
(Decrease)/Increase in cash, cash equivalents, and restricted cash	(1,287,302)	1,028,626	827,300
Cash, cash equivalents, and restricted cash, beginning of the year	2,449,704	1,421,078	593,778
Cash, cash equivalents, and restricted cash, end of the period	1,162,402	2,449,704	1,421,078
Supplemental Cash Flow Information
Interest	105,521	75,486	162,434
Income taxes	96,881	92,691	45,371
Non-cash investing and financing activities:
Net change in unrealized holding (loss)/gain on securities available-for-sale, net of tax	(105,042)	(11,989)	6,486
Net change in unrealized holding gain/(loss) on cash flow hedge derivatives	5,813	3,614	(3,478)
Transfers to other real estate owned from loans held for investment	0	205	0
Loans transferred from held-for investment to loans held for sale	$ 32	$ 0	$ 0

Note 1 - Summary of Significant

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Significant Accounting Policies [Text Block]	1. Summary of Significant Accounting Policies The accompanying Consolidated Financial Statements include the accounts of Cathay General Bancorp (the “Bancorp”), a Delaware corporation, its wholly-owned subsidiaries, Cathay Bank (the “Bank”), a California state-chartered bank, ten Organization and Background The Bancorp’s primary business is to act as the holding company for the Bank. The Bank is a commercial bank, servicing primarily the individuals, professionals, and small to medium-sized businesses in the local markets in which its branches are located. Its operations include the acceptance of checking, savings, and time deposits, and the making of commercial, real estate, and consumer loans. The Bank also offers trade financing, letters of credit, wire transfer, foreign currency spot and forward contracts, Internet banking, investment services, and other customary banking services to its clients. The Bank owns 100% of the common securities of Cathay Holdings LLC. Use of Estimates. Concentrations. December 31, 2022, December 31, 2022, Securities Available for Sale. January 1, 2021, 2016 13, 1 2 not Interest income includes amortization of premiums and discounts as an adjustment of yield on a level-yield basis. Premiums on callable debt securities are amortized to their earliest call date. Gains and losses on sales are recorded on the trade date and determined using the specific identification method. A debt security is placed on nonaccrual status at the time any principal or interest payments become delinquent by 90 not No Allowance for Credit Losses on Available for Sale Securities. first not not not Changes in the allowance for credit losses are recorded as provision for credit loss expense. Losses are charged against the allowance when management believes the uncollectability of an available-for-sale security is confirmed or when either of the criteria regarding intent or requirement to sell is met. The amortized cost of the Company’s AFS debt securities exclude accrued interest, which is included in “accrued interest receivable” on the Consolidated Balance Sheets. The Company has made an accounting policy election not Trading securities Investment in Federal Home Loan Bank ( FHLB ) Stock. December 31, 2022, 2021. December 31, 2022, Loans Held for Investment. 360 Generally, loans are placed on nonaccrual status when they become 90 not not not Loans held for sale Allowance for Credit Losses ( ACL ) on Loans Held for Investment. 2016 13, Financial Instruments Credit Losses (Topic 326 January 1, 2021 The ACL on loans held for investment is the combination of the allowance for loan losses and the reserve for unfunded loan commitments. The allowance for loan losses is reported as a reduction of the amortized cost basis of loans, while the reserve for unfunded loan commitments is included within "other liabilities" on the Consolidated Balance Sheets. The amortized cost basis of loans does not Under the Company’s CECL approach, management estimates the ACL using relevant available information from internal and external sources, relating to past events, GDP, unemployment rates, CRE and home price indexes, and reasonable and supportable economic forecasts that vary by loan portfolio. We use economic forecasts from Moody’s Analytics in this process. The economic forecast is updated monthly; therefore, the one one not one Under the CECL methodology, quantitative and qualitative loss factors are applied to our population of loans on a collective pool basis when similar risk characteristics exist. When loans do not not may one 1 2 not Under the Company’s CECL methodology, nine three six six 2007 fourth 2020. fourth 2007 fourth 2020. The Company’s CECL methodology utilizes an eight four 1 10th 3 90th four six The Company’s CECL methodology estimates expected credit losses over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: (i) management has a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual borrower or (ii) the extension or renewal options are included in the original or modified contract at the reporting date and are not The simplified approach portfolios include Small Business Administration (“SBA”) loans, Home Equity Lines of Credit (“HELOCs”) and cash-secured loans, which are not three first eight four Under the Company’s CECL methodology, the qualitative portion of the reserve on pooled loans represents management’s judgment of additional considerations to account for internal and external risk factors that are not may not The Company’s CECL methodology requires a significant amount of management judgment in determining the appropriate allowance for credit losses. Several of the steps in the methodology involve judgment and are subjective in nature including, among other things: segmenting the loan portfolio; determining the period over which loss history to consider; selecting predictive econometric regression models that use appropriate macroeconomic variables; determining the methodology to forecast prepayments; selecting the most appropriate economic forecast scenario; determining the length of the R&S forecast and reversion periods; estimating expected utilization rates on unfunded loan commitments; and assessing relevant and appropriate qualitative factors. In addition, the CECL methodology is dependent on economic forecasts that are inherently imprecise and will change from period to period. Although the allowance for credit losses is considered by management to be appropriate, there can be no Management believes the allowance for credit losses is appropriate for the CECL in our loan portfolio and associated unfunded commitments, and the risk ratings and inherent loss rates currently assigned are reasonable and appropriate as of the reporting date. Individually Evaluated Loans not no may one 90 Prior to January 1, 2021, • Specific allowance: For impaired loans, we provide specific allowances for loans that are not may • General allowance: The unclassified portfolio is segmented on a group basis. Segmentation is determined by loan types and common risk characteristics. The non-impaired loans are grouped into 19 two ten one one one one one one one fourth 2016, five eight first 2009 forty-eight fourth 2020. five Troubled Debt Restructured Loan ( TDR ). may six The allowance for credit loss on a TDR is measured using the same method as all other loans held for investment, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit loss is determined by discounting the expected future cash flows at the original interest rate of the loan. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) as extended by the Consolidated Appropriation Act, 2021 19 not March 1, 2020, January 1, 2022 not 30 December 31, 2019. Unfunded Loan Commitments. not 14 The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company, using the same loss factors as used for the allowance for loan losses. The reserve for unfunded loan commitments uses the expected historical usage rate of the unfunded commitments during the contractual life of the commitments. The allowance for unfunded commitments is included in “other liabilities” on the Consolidated Balance Sheets. Changes in the allowance for unfunded commitments are included in the provision for loan losses. Letter of Credit Fees Other Real Estate Owned ( OREO ). Investments in Affordable Housing Partnerships and Other Tax Credit Investments. 6 December 31, 2022, ten ten Investments in Venture Capital. Premises and Equipment. Type Estimated Useful Life (years) Buildings 15 to 45 Building improvements 5 to 20 Furniture, fixtures, and equipment 3 to 25 Leasehold improvements Shorter of useful lives or the terms of the leases Improvements are capitalized and amortized to occupancy expense based on the above table. Construction in process is carried at cost and includes land acquisition cost, architectural fees, general contractor fees, capitalized interest and other costs related directly to the construction of a property. Goodwill and Other Intangible Assets. December 31 may not no December 31, 2022 2021. Other intangible assets. Bank-Owned Life Insurance. Stock-Based Compensation. Derivatives 815 not third not Foreign Exchange Forwards and Foreign Currency Option Contracts. not Income Taxes. not not Comprehensive Income/(loss). Net Income per Common Share Foreign Currency Translation. Statement of Cash Flows three Segment Reporting. one Recent Accounting Pronouncements In March 2020, No. 2020 04, 848 No. 2020 04 March 12, 2020, December 31, 2022 2022 06 December 31, 2024 no 848. December 31, 2024. January 2021, 2021 01 848 may 2020 04 2021 01 January 1, 2021. not In March 2022, 2022 01, 815 not 2022 01 one 2022 01 2022 01 January 1, 2023 2022 01 not In March 2022, 2022 02, 326 2022 02 310 40, 2022 02 326 20, 2022 02 January 1, 2023 2022 02 not In June 2022, 2022 03, 820 2022 03 not not 2022 03 2022 03 January 1, 2024 2022 03 not

Note 2 - Business Combinations

Note 2 - Business Combinations	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	2. Business Combinations The Company’s subsidiary bank, Cathay Bank completed the purchase of HSBC Bank USA, National Association’s West Coast mass retail market consumer banking business and retail business banking business on February 7, 2022. The assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the February 7, 2022 one The fair value of the assets and the liabilities acquired as of February 7, 2022 Balance Sheet (In thousands) Assets: Cash and cash equivalents $ 473 Loans 641,839 Right-of-use assets - operating leases 6,453 Core deposit intangible 3,138 Other 561 Total assets $ 652,464 Liabilities assumed: Deposits $ 575,163 Lease liabilities 6,453 Total liabilities assumed $ 581,616 Net assets acquired $ 70,848 Total cash paid at closing $ 74,355 Goodwill $ 3,507

Note 3 - Cash, Cash Equivalents

Note 3 - Cash, Cash Equivalents and Restricted Cash	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Cash and Cash Equivalents Disclosure [Text Block]	3. Cash, Cash Equivalents and Restricted Cash The Company manages its cash and cash equivalents based upon the Company’s operating, investment, and financing activities. Cash and cash equivalents, for the purpose of reporting cash flows, consist of cash and due from banks and short-term investments and interest-bearing deposits. Cash and due from banks include cash on hand, cash items in transit, cash due from the Federal Reserve Bank of San Francisco (“FRBSF”) and other financial institutions. Short-term investments and interest-bearing deposits include cash placed with other banks with original maturity of three The Company had average excess balance with FRBSF of $1.24 billion and $1.61 billion as of December 31, 2022 2021, December 31, 2022 December 31, 2021, December 31, 2022 December 31, 2021, December 31, 2022 December 31, 2021,

Note 4 - Investment Securities

Note 4 - Investment Securities	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	4. Investment Securities Investment Securities. December 31, 2022 December 31, 2021: As of December 31, 2022 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ 241,611 $ — $ 1,111 $ 240,500 U.S. government agency entities 63,347 384 121 63,610 U.S. government sponsored entities 30,000 — — 30,000 Mortgage-backed securities 993,883 194 126,983 867,094 Collateralized mortgage obligations 34,552 — 3,491 31,061 Corporate debt securities 258,780 112 17,809 241,083 Total $ 1,622,173 $ 690 $ 149,515 $ 1,473,348 As of December 31, 2021 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ — $ — $ — $ — U.S. government agency entities 86,475 1,169 135 87,509 Mortgage-backed securities 886,614 9,465 7,414 888,665 Collateralized mortgage obligations 9,547 — 430 9,117 Corporate debt securities 144,231 441 2,654 142,018 Total $ 1,126,867 $ 11,075 $ 10,633 $ 1,127,309 The amortized cost and fair value of securities available-for-sale as of December 31, 2022, may may Securities Available-for-Sale As of December 31, 2022 Amortized Cost Fair Value (In thousands) Due in one year or less $ 311,603 $ 310,050 Due after one year through five years 213,395 196,616 Due after five years through ten years 168,767 159,448 Due after ten years 928,408 807,234 Total $ 1,622,173 $ 1,473,348 Proceeds from the sale of investment securities were $0, $21.1 million and $117.2 million for the years ended December 31, 2022, 2021 2020, December 31, 2022, 2021 2020, Allowance for Credit Losses The securities that were in an unrealized loss position as of December 31, 2022, 1 The Company concluded the unrealized losses were primarily attributed to yield curve movement, together with widened liquidity spreads and credit spreads. The issuers have not, no not no December 31, 2022 2021, no December 31, 2022 2021. December 31, 2020, no The tables below show the related fair value and the gross unrealized losses of the Company’s investment portfolio, aggregated by investment category and the length of time that individual securities have been in a continuous unrealized loss position as of December 31, 2022, December 31, 2021: As of December 31, 2022 Less than 12 months 12 months or longer Total Fair Gross Unrealized Fair Gross Unrealized Fair Gross Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ 240,500 $ 1,111 $ — $ — $ 240,500 $ 1,111 U.S. government agency entities — — 1,806 121 1,806 121 Mortgage-backed securities 394,123 33,042 452,739 93,941 846,862 126,983 Collateralized mortgage obligations 24,427 1,614 6,634 1,877 31,061 3,491 Corporate debt securities 109,995 3,256 100,977 14,553 210,972 17,809 Total $ 769,045 $ 39,023 $ 562,156 $ 110,492 $ 1,331,201 $ 149,515 As of December 31, 2021 Less than 12 months 12 months or longer Total Fair Gross Unrealized Fair Gross Unrealized Fair Gross Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ — $ — $ — $ — $ — $ — U.S. government agency entities — — 2,337 135 2,337 135 Mortgage-backed securities 527,276 6,659 6,496 755 533,772 7,414 Collateralized mortgage obligations 8,989 417 128 13 9,117 430 Corporate debt securities 103,720 2,122 19,468 532 123,188 2,654 Total $ 639,985 $ 9,198 $ 28,429 $ 1,435 $ 668,414 $ 10,633 As of December 31, 2022 no December 31, 2021, Securities available-for-sale having a carrying value of $145.7 million and $30.5 million as of December 31, 2022, December 31, 2021, Equity securities were $22.2 million as of December 31, 2022, December 31, 2021. December 31, 2022 2021, December 31, 2020.

Note 5 - Loans

Note 5 - Loans	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	5. Loans Most of the Company’s business activities are with clients located in the high-density Asian-populated areas of Southern and Northern California; New York City, New York; Houston and Dallas, Texas; Seattle, Washington; Boston, Massachusetts; Chicago, Illinois; Edison, New Jersey; Rockville, Maryland; and Las Vegas, Nevada. The Company also has loan clients in Hong Kong. The Company has no The following table presents the composition of the Company’s loans as of December 31, 2022, 2021, As of December 31, 2022 2021 (In thousands) Loans: Commercial loans $ 3,318,778 $ 2,982,399 Real estate construction loans 559,372 611,031 Commercial mortgage loans 8,793,685 8,143,272 Residential mortgage loans 5,252,952 4,182,006 Equity lines 324,548 419,487 Installment and other loans 4,689 4,284 Gross loans 18,254,024 16,342,479 Less: Allowance for loan losses (146,485 ) (136,157 ) Unamortized deferred loan fees (6,641 ) (4,321 ) Total loans, net $ 18,100,898 $ 16,202,001 The Company pledged real estate loans of $13.07 billion as of December 31, 2022, December 31, 2021, December 31, 2022, December 31, 2021, Loans serviced for others as of December 31, 2022, December 31, 2021, The Company has entered into transactions with its directors, executive officers, or principal holders of its equity securities, or the associates of such persons (“Related Parties”). All loans to Related Parties were current as of December 31, 2022 2021. December 31, 2022 2021 (In thousands) Balance at beginning of year $ 38,532 $ 51,288 Additional loans made 25,050 29,182 Payment received (30,365 ) (41,938 ) Balance at end of year $ 33,217 $ 38,532 As of December 31, 2022, December 31, 2021, December 31, 2022 2021, December 31, 2022, 2021 2020. December 31, 2022 December 31, 2021. The following tables present the average balance and interest income recognized on non-accrual loans for the periods indicated: For the year ended December 31, 2022 Average Recorded Investment Interest Income Recognized (In thousands) Commercial loans $ 28,109 $ 4 Commercial mortgage loans 28,983 405 Residential mortgage and equity lines 14,251 26 Installment and other loans 28 — Total $ 71,371 $ 435 For the year ended December 31, 2021 Average Recorded Investment Interest Income Recognized (In thousands) Commercial loans $ 21,453 $ — Real estate construction loans 3,805 — Commercial mortgage loans 38,047 1,044 Residential mortgage and equity lines 9,435 30 Total $ 72,740 $ 1,074 The following table presents non-accrual loans and the related allowance as of December 31, 2022 2021: As of December 31, 2022 Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance: Commercial loans $ 27,341 $ 12,949 $ — Commercial mortgage loans 37,697 32,205 — Residential mortgage and equity lines 9,626 8,978 — Installment and other loans 9 8 — Subtotal $ 74,673 $ 54,140 $ — With allocated allowance: Commercial loans $ 14,643 $ 12,823 $ 3,734 Commercial mortgage loans 1,896 1,891 207 Residential mortgage and equity lines — — — Subtotal $ 16,539 $ 14,714 $ 3,941 Total non-accrual loans $ 91,212 $ 68,854 $ 3,941 As of December 31, 2021 Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance: Commercial loans $ 15,879 $ 11,342 $ — Commercial mortgage loans 24,437 21,209 — Residential mortgage and equity lines 6,020 5,850 — Subtotal $ 46,336 $ 38,401 $ — With allocated allowance: Commercial loans $ 14,294 $ 5,217 $ 894 Commercial mortgage loans 17,930 16,964 3,631 Residential mortgage and equity lines 6,048 5,264 22 Subtotal $ 38,272 $ 27,445 $ 4,547 Total non-accrual loans $ 84,608 $ 65,846 $ 4,547 The following table is a summary of non-accrual loans as of December 31, 2022, 2021, 2020 As of December 31, 2022 2021 2020 (In thousands) Non-accrual portfolio loans $ 68,854 $ 65,846 $ 67,684 Contractual interest due 4,620 4,032 3,093 Interest recognized 435 1,074 1,008 Net interest foregone $ 4,185 $ 2,958 $ 2,085 The following tables present the aging of the loan portfolio by type as of December 31, 2022, December 31, 2021: As of December 31, 2022 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Non-accrual Loans Total Past Due Loans Not Past Due Total Type of Loans: (In thousands) Commercial loans $ 8,192 $ 3,235 $ 10,208 $ 25,772 $ 47,407 $ 3,271,371 $ 3,318,778 Real estate construction loans — — — — — 559,372 559,372 Commercial mortgage loans 25,772 — 1,372 34,096 61,240 8,732,445 8,793,685 Residential mortgage loans and equity lines 47,043 5,685 — 8,978 61,706 5,515,794 5,577,500 Installment and other loans 5 1 — 8 14 4,675 4,689 Total loans $ 81,012 $ 8,921 $ 11,580 $ 68,854 $ 170,367 $ 18,083,657 $ 18,254,024 As of December 31, 2021 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Non-accrual Loans Total Past Due Loans Not Past Due Total Type of Loans: (In thousands) Commercial loans $ 4,294 $ 9,877 $ 1,439 $ 16,558 $ 32,168 $ 2,950,231 $ 2,982,399 Real estate construction loans — — — — — 611,031 611,031 Commercial mortgage loans 8,389 — — 38,173 46,562 8,096,710 8,143,272 Residential mortgage loans 20,129 3,138 — 11,115 34,382 4,567,111 4,601,493 Installment and other loans — — — — — 4,284 4,284 Total loans $ 32,812 $ 13,015 $ 1,439 $ 65,846 $ 113,112 $ 16,229,367 $ 16,342,479 A TDR is a formal modification of the terms of a loan when the lender, for economic or legal reasons related to the borrower’s financial difficulties, grants a concession to the borrower. The concessions may six The allowance for credit loss on a TDR is measured using the same method as all other loans held for investment, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit loss is determined by discounting the expected future cash flows at the original interest rate of the loan. The Company establishes a specific reserve for individually evaluated loans that do not Although the Company took steps to incorporate the impact of the COVID- 19 As of December 31, 2022, December 31, 2021. December 31, 2022, seven thousand three thousand December 31, 2021. 2022, December 31, 2022, 2022: Loans Modified as TDRs During the Year Ended December 31, 2022 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve (1) Charge-offs (Dollars in thousands) Commercial loans 4 $ 6,115 $ 6,115 $ 427 $ — Commercial mortgage loans 3 3,676 3,669 — — Residential mortgage and equity lines 8 2,189 2,162 — — Total 15 $ 11,980 $ 11,946 $ 427 $ — ( 1 The following table presents TDRs that were modified during 2021, December 31, 2021, 2021: Loans Modified as TDRs During the Year Ended December 31, 2021 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve Charge-offs (Dollars in thousands) Commercial loans 3 $ 2,150 $ 2,150 $ — $ — Residential mortgage and equity lines 2 3 3 — — Total 5 $ 2,153 $ 2,153 $ — $ — The following table presents TDRs that were modified during 2020, December 31, 2020, 2020: Loans Modified as TDRs During the Year Ended December 31, 2020 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve Charge-off (Dollars in thousands) Commercial loans 5 $ 5,417 $ 5,417 $ — $ — Total 5 $ 5,417 $ 5,417 $ — $ — A summary of TDRs by type of concession and by type of loans as of December 31, 2022, December 31, 2021, December 31, 2022 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 2,588 $ — $ — $ 2,588 Commercial mortgage loans 2,791 — 5,855 8,646 Residential mortgage loans 2,181 445 1,285 3,911 Total accruing TDRs $ 7,560 $ 445 $ 7,140 $ 15,145 December 31, 2022 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 3,629 $ — $ — $ 3,629 Commercial mortgage loans 1,098 — — 1,098 Residential mortgage loans 1,621 — — 1,621 Total non-accrual TDRs $ 6,348 $ — $ — $ 6,348 December 31, 2021 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 3,368 $ — $ — $ 3,368 Commercial mortgage loans 438 5,522 168 6,128 Residential mortgage loans 1,464 249 1,628 3,341 Total accruing TDRs $ 5,270 $ 5,771 $ 1,796 $ 12,837 December 31, 2021 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 7,717 $ — $ — $ 7,717 Residential mortgage loans 458 — — 458 Total non-accrual TDRs $ 8,175 $ — $ — $ 8,175 Modifications of the loan terms in the twelve December 31, 2022, three twelve We expect that the TDRs on accruing status as of December 31, 2022, The Company considers a loan to be in payment default once it is 60 to 90 days contractually past due under the modified terms. The Company did not twelve December 31, 2022. Under the Company’s internal underwriting policy, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification in order to determine whether a borrower is experiencing financial difficulty. As of December 31, 2022, no The CARES Act, signed into law on March 27, 2020, 2021, 19 March 1, 2020 January 1, 2022 not 30 December 31, 2019. 19 19 As part of the on-going monitoring of the credit quality of our loan portfolio, the Company utilizes a risk grading matrix to assign a risk rating to each loan. Loans are risk rated based on analysis of the current state of the borrower’s credit quality. The analysis of credit quality includes a review of sources of repayment, the borrower’s current financial and liquidity status and other relevant information. The risk rating categories can be generally described by the following grouping for non-homogeneous loans: ● Pass/Watch ● Special Mention not may ● Substandard may not not ● Doubtful may ● Loss no The following table summarizes the Company’s loan held for investment as of December 31, 2022 2021, Loans Amortized Cost Basis by Origination Year December 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Revolving Converted to Term Loans Total (In thousands) Commercial loans Pass/Watch $ 488,748 $ 446,647 $ 180,226 $ 119,355 $ 107,896 $ 106,649 $ 1,753,509 $ 6,560 $ 3,209,590 Special Mention 1,212 4,696 2,818 68 308 4,354 41,110 — 54,566 Substandard 25 12,750 342 4,859 2,766 6,985 22,084 133 49,944 Doubtful — — — 1,504 2,185 — 234 — 3,923 Total $ 489,985 $ 464,093 $ 183,386 $ 125,786 $ 113,155 $ 117,988 $ 1,816,937 $ 6,693 $ 3,318,023 YTD period charge-offs $ 96 $ 587 $ 120 $ 71 $ 1,786 $ 360 $ 202 $ — $ 3,222 YTD period recoveries (8 ) — (39 ) — (254 ) (335 ) (1,829 ) — (2,465 ) Net $ 88 $ 587 $ 81 $ 71 $ 1,532 $ 25 $ (1,627 ) $ — $ 757 Real estate construction loans Pass/Watch $ 99,798 $ 264,197 $ 113,312 $ 20,479 $ 3,067 $ — $ — $ — $ 500,853 Special Mention — 360 9,449 11,643 22,945 — — — 44,397 Substandard — — — 1,736 9,309 — — — 11,045 Total $ 99,798 $ 264,557 $ 122,761 $ 33,858 $ 35,321 $ — $ — $ — $ 556,295 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (6 ) — — (6 ) Net $ — $ — $ — $ — $ — $ (6 ) $ — $ — $ (6 ) Commercial mortgage loans Pass/Watch $ 2,087,650 $ 1,728,607 $ 975,953 $ 1,094,505 $ 908,748 $ 1,420,982 $ 178,116 $ — $ 8,394,561 Special Mention 22,150 57,015 25,593 32,119 17,999 63,782 1,600 — 220,258 Substandard 12,320 7,861 14,392 19,972 34,899 81,844 2,631 — 173,919 Total $ 2,122,120 $ 1,793,483 $ 1,015,938 $ 1,146,596 $ 961,646 $ 1,566,608 $ 182,347 $ — $ 8,788,738 YTD period charge-offs $ — $ — $ — $ — $ 2,091 $ — $ — $ — $ 2,091 YTD period recoveries — — — (240 ) — (7 ) (111 ) — (358 ) Net $ — $ — $ — $ (240 ) $ 2,091 $ (7 ) $ (111 ) $ — $ 1,733 Residential mortgage loans Pass/Watch $ 1,228,391 $ 964,799 $ 580,990 $ 600,786 $ 417,565 $ 1,444,320 $ — $ — $ 5,236,851 Special Mention — — 33 — 752 905 — — 1,690 Substandard 206 762 2,028 1,966 1,799 8,785 — — 15,546 Total $ 1,228,597 $ 965,561 $ 583,051 $ 602,752 $ 420,116 $ 1,454,010 $ — $ — $ 5,254,087 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (45 ) — — (45 ) Net $ — $ — $ — $ — $ — $ (45 ) $ — $ — $ (45 ) Equity lines Pass/Watch $ 731 $ — $ — $ — $ — $ — $ 302,825 $ 21,460 $ 325,016 Special Mention 5 — — — — — — — 5 Substandard 12 — — — — — 1,043 220 1,275 Total $ 748 $ — $ — $ — $ — $ — $ 303,868 $ 21,680 $ 326,296 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — (11 ) (16 ) (27 ) Net $ — $ — $ — $ — $ — $ — $ (11 ) $ (16 ) $ (27 ) Installment and other loans Pass/Watch $ 1,792 $ 2,152 $ — $ — $ — $ — $ — $ — $ 3,944 Total $ 1,792 $ 2,152 $ — $ — $ — $ — $ — $ — $ 3,944 YTD period charge-offs $ 115 $ — $ — $ — $ — $ — $ 62 $ — $ 177 YTD period recoveries (2 ) — — — — — (2 ) — (4 ) Net $ 113 $ — $ — $ — $ — $ — $ 60 $ — $ 173 Total loans $ 3,943,040 $ 3,489,846 $ 1,905,136 $ 1,908,992 $ 1,530,238 $ 3,138,606 $ 2,303,152 $ 28,373 $ 18,247,383 Net charge-offs/(recoveries) $ 201 $ 587 $ 81 $ (169 ) $ 3,623 $ (33 ) $ (1,689 ) $ (16 ) $ 2,585 Loans Amortized Cost Basis by Origination Year December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Converted to Term Loans Total (In thousands) Commercial loans Pass/Watch $ 606,770 $ 268,756 $ 183,468 $ 142,419 $ 80,701 $ 100,496 $ 1,437,463 $ 7,433 $ 2,827,506 Special Mention 395 780 1,138 1,645 3,157 — 40,761 49 47,925 Substandard 450 5,879 22,513 16,423 14,309 5,221 34,713 5,716 105,224 Doubtful — — — — — — 900 — 900 Total $ 607,615 $ 275,415 $ 207,119 $ 160,487 $ 98,167 $ 105,717 $ 1,513,837 $ 13,198 $ 2,981,555 YTD period charge-offs $ — $ 1,478 $ 507 $ 366 $ — $ 50 $ 17,650 $ — $ 20,051 YTD period recoveries — (1 ) (29 ) (124 ) — (191 ) (1,361 ) — (1,706 ) Net $ — $ 1,477 $ 478 $ 242 $ — $ (141 ) $ 16,289 $ — $ 18,345 Real estate construction loans Pass/Watch $ 199,188 $ 188,782 $ 125,316 $ 24,548 $ — $ — $ — $ — $ 537,834 Special Mention — 23,107 27,672 17,374 — — — — 68,153 Substandard — — 1,919 — — — — — 1,919 Total $ 199,188 $ 211,889 $ 154,907 $ 41,922 $ — $ — $ — $ — $ 607,906 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (76 ) — — (76 ) Net $ — $ — $ — $ — $ — $ (76 ) $ — $ — $ (76 ) Commercial mortgage loans Pass/Watch $ 1,893,807 $ 1,201,825 $ 1,253,548 $ 1,031,191 $ 727,916 $ 1,313,882 $ 198,869 $ — $ 7,621,038 Special Mention 45,719 59,182 49,796 103,101 61,105 60,448 750 — 380,101 Substandard 1,110 — 13,483 42,803 1,580 76,906 3,297 — 139,179 Total $ 1,940,636 $ 1,261,007 $ 1,316,827 $ 1,177,095 $ 790,601 $ 1,451,236 $ 202,916 $ — $ 8,140,318 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — (240 ) — — (28 ) (111 ) — (379 ) Net $ — $ — $ (240 ) $ — $ — $ (28 ) $ (111 ) $ — $ (379 ) Residential mortgage loans Pass/Watch $ 978,375 $ 622,999 $ 678,775 $ 502,325 $ 453,992 $ 929,846 $ — $ — $ 4,166,312 Special Mention — 46 1,576 1,064 836 438 — — 3,960 Substandard 1,684 147 2,698 2,574 862 5,255 — — 13,220 Total $ 980,059 $ 623,192 $ 683,049 $ 505,963 $ 455,690 $ 935,539 $ — $ — $ 4,183,492 YTD period charge-offs $ — $ — $ — $ — $ 3 $ — $ — $ — $ 3 YTD period recoveries — — — — — (208 ) — — (208 ) Net $ — $ — $ — $ — $ 3 $ (208 ) $ — $ — $ (205 ) Equity lines Pass/Watch $ — $ — $ — $ — $ — $ 5 $ 389,069 $ 30,025 $ 419,099 Substandard — — — — — — 1,230 273 1,503 Total $ — $ — $ — $ — $ — $ 5 $ 390,299 $ 30,298 $ 420,602 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — (10 ) (64 ) (74 ) Net $ — $ — $ — $ — $ — $ — $ (10 ) $ (64 ) $ (74 ) Installment and other loans Pass/Watch $ 4,117 $ 168 $ — $ — $ — $ — $ — $ — $ 4,285 Total $ 4,117 $ 168 $ — $ — $ — $ — $ — $ — $ 4,285 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — — — — Net $ — $ — $ — $ — $ — $ — $ — $ — $ — Total loans $ 3,731,615 $ 2,371,671 $ 2,361,902 $ 1,885,467 $ 1,344,458 $ 2,492,497 $ 2,107,052 $ 43,496 $ 16,338,158 Net charge-offs/(recoveries) $ — $ 1,477 $ 238 $ 242 $ 3 $ (453 ) $ 16,168 $ (64 ) $ 17,611 Revolving loans that are converted to term loans presented in the table above are excluded from the term loans by vintage year columns. The following table details activity in the allowance for loan losses by portfolio segment for the years ended December 31, 2022, 2021. one not Real Estate Commercial Residential Installment Commercial Construction Mortgage Mortgage and Other Loans Loans Loans and Equity Lines Loans Total (In thousands) 2021 Beginning Balance $ 68,742 $ 30,854 $ 49,205 $ 17,737 $ — $ 166,538 Impact of ASU 2016-13 adoption $ (31,466 ) $ (24,307 ) $ 34,993 $ 19,211 $ 9 $ (1,560 ) Allowance for loan losses, January 1, 2021 $ 37,276 $ 6,547 $ 84,198 $ 36,948 $ 9 $ 164,978 Provision/(reversal) for loan losses 24,463 (321 ) (23,401 ) (11,943 ) (8 ) (11,210 ) Charge-offs (20,051 ) — — (3 ) — (20,054 ) Recoveries 1,706 76 284 377 — 2,443 Net (Charge-offs)/Recoveries $ (18,345 ) $ 76 $ 284 $ 374 $ — $ (17,611 ) 2021 Ending Balance $ 43,394 $ 6,302 $ 61,081 $ 25,379 $ 1 $ 136,157 Provision/(reversal) for loan losses 6,798 4,109 9,018 (7,219 ) 207 12,913 Charge-offs (3,222 ) — (2,091 ) — (177 ) (5,490 ) Recoveries 2,465 6 358 72 4 2,905 Net (Charge-offs)/Recoveries $ (757 ) $ 6 $ (1,733 ) $ 72 $ (173 ) $ (2,585 ) 2022 Ending Balance $ 49,435 $ 10,417 $ 68,366 $ 18,232 $ 35 $ 146,485 Allowance for unfunded credit commitments, January 1, 2021 $ 8,038 $ 3,825 $ 35 $ — $ — $ 11,898 Provision/(reversal) for possible credit losses (4,313 ) (450 ) (35 ) — — (4,798 ) Allowance for unfunded credit commitments 2021 Ending Balance $ 3,725 $ 3,375 $ — $ — $ — $ 7,100 Provision/(reversal) for possible credit losses 1,115 515 — — — 1,630 Allowance for unfunded credit commitments 2022 Ending Balance $ 4,840 $ 3,890 $ — $ — $ — $ 8,730 Residential mortgage loans in process of formal foreclosure proceedings were $456 thousand as of December 31, 2022, December 31, 2021.

Note 6 - Investments in Afforda

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Investments in Affordable Housing [Text Block]	6. Investments in Affordable Housing and Alternative Energy Partnerships The Company holds ownership interests in a number of limited partnerships that were formed to develop and operate housing for lower-income tenants throughout the United States and alternative energy partnerships that qualify for energy tax credits. The Company evaluates its interests in these partnerships to determine whether they meet the definition of a Variable Interest Entity (“VIE”) and whether the Company is required to consolidate these entities. A VIE is consolidated by its primary beneficiary, which is the party that has both (i) the power to direct the activities that most significantly impact the economic performance of the VIE and (ii) a variable interest that could potentially be significant to the VIE. To determine whether or not 810, not ten not not not The investment in these entities approximates the maximum exposure to loss as a result of the Company’s involvement with these unconsolidated entities. The balance of the Company’s investments in these entities was $327.1 million and $299.2 million as of December 31, 2022, 2021, The Company’s investments in these partnerships, net, are presented in the table below: As of December 31, 2022 2021 (In thousands) Investments in affordable housing partnerships, net $ 289,920 $ 287,517 Other borrowings for affordable housing limited partnerships $ 22,600 $ 23,145 Investments in affordable housing and alternative energy partnerships, unfunded commitments $ 133,491 $ 107,652 Investments in alternative energy tax credit partnerships, net $ 37,208 $ 11,694 As of December 31, 2022, ten December 31, 2022, December 31, 2021. December 31, 2022 2021, December 31, 2022 2021, As of December 31, 2022, Amount Year Ending December 31, (In thousands) 2023 $ 78,897 2024 $ 33,154 2025 $ 14,076 2026 $ 1,678 2027 $ 1,533 Thereafter $ 4,153 Total unfunded commitments $ 133,491 Each of the partnerships must meet regulatory requirements for affordable housing and alternative energy projects, including long-term minimum compliance periods (such as a 15 may not December 31, 2022. not three not 2022 2021, The following table summarizes the Company’s usage of affordable housing and other tax credits including energy tax credits. As of December 31, 2022 2021 2020 (In thousands) Affordable housing and other tax credits recognized $ 29,524 $ 26,459 $ 23,273 Alternative energy tax credits recognized $ 4,707 $ 6,337 $ 29,706

Note 7 - Premises and Equipment

Note 7 - Premises and Equipment	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	7. Premises and Equipment Premises and equipment consisted of the following as of December 31, 2022, December 31, 2021: As of December 31, 2022 2021 (In thousands) Land and land improvements $ 42,566 $ 42,475 Building and building improvements 81,613 81,290 Furniture, fixtures and equipment 65,872 62,138 Leasehold improvement 18,009 17,862 Construction in process 375 2,453 208,435 206,218 Less: Accumulated depreciation 113,659 106,816 Premises and equipment, net $ 94,776 $ 99,402 The amount of depreciation included in operating expense was $8.0 million, $7.7 million and $7.0 million for the years ended December 31, 2022, 2021 2020,

Note 8 - Goodwill and Other Int

Note 8 - Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	8. Goodwill and Other Intangible Assets Goodwill. December 31, 2022 December 31, 2021. February 7, 2022. 1 not December 31, 2022 2021. Core Deposit Intangibles. 2022. December 31, 2022 2021: December 31, 2022 2021 (In thousands) Gross balance $ 10,562 $ 7,424 Accumulated amortization (4,291 ) (3,317 ) Impairment (918 ) — Net carrying balance $ 5,353 $ 4,107 There was $918 thousand in impairment write-downs on core deposit intangibles for the year ended December 31, 2022 No December 31, 2021 2020. The Company amortizes the core deposit intangibles based on the projected useful lives of the related deposits. The amortization expense related to the core deposit intangible assets was $1.9 million, $687 thousand and $687 thousand for the years ended December 31, 2022, 2021 2020, Amount (In thousands) 2023 $ 1,001 2024 $ 1,001 2025 $ 946 2026 $ 870 2027 $ 870 thereafter $ 665 Total $ 5,353

Note 9 - Deposits

Note 9 - Deposits	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Deposit Liabilities Disclosures [Text Block]	9. Deposits The following table displays deposit balances as of December 31, 2022, December 31, 2021: As of December 31, 2022 2021 (In thousands) Deposits Non-interest-bearing demand deposits $ 4,168,989 $ 4,492,054 Interest bearing demand deposits 2,509,736 2,522,442 Money market deposits 3,812,724 4,611,579 Savings deposits 1,000,460 915,515 Time deposits 7,013,370 5,517,252 Total deposits $ 18,505,279 $ 18,058,842 Time deposits outstanding as of December 31, 2022, Expected Maturity Date at December 31, 2023 2024 2025 2026 2027 Thereafter Total (In thousands) Time deposits $ 6,926,121 $ 79,376 $ 5,094 $ 591 $ 2,168 $ 20 $ 7,013,370 Accrued interest payable on client deposits was $13.2 million, $1.7 million, and $8.5 million as of December 31, 2022, 2021 2020, December 31, 2022, 2021, 2020: Year Ended December 31, 2022 2021 2020 (In thousands) Interest bearing demand $ 8,176 $ 2,249 $ 2,816 Money market accounts 39,913 18,241 21,574 Saving accounts 853 769 1,006 Time deposits 56,354 40,542 111,629 Total $ 105,296 $ 61,801 $ 137,025 The aggregate amount of domestic time deposits in denominations that meet or exceed the current FDIC insurance limit of $250 December 31, 2022, 2021, December 31, 2022, 2021, $250

Note 10 - Borrowed Funds

Note 10 - Borrowed Funds	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Debt Disclosure [Text Block]	10. Borrowed Funds There were no outstanding securities sold under agreements to repurchase at December 31, 2022, December 31, 2021. Securities sold under agreements to repurchase, if any, are accounted for as collateralized financing transactions and recorded at the amounts at which the securities were sold. No 2022, 2021, 2020. As of December 31, 2022, 2022 2021. December 31, 2022, December 31, 2021. December 31, 2022, January 2023, May 2023 September 2024. Other Liabilities. November 23, 2004, December 31, 2005, January 1 first first seventh 2004 November 23, 2014, ten March 13, 2014, December 31, 2013 January 1 first first seventh March 28, 2019, five Interest of $116 thousand during 2022, 2021, 2020 December 31, 2022, December 31, 2021. We established three 2003 two 2007 twenty may not, As of December 31, 2022 2021, December 31, 2022, 2021 2020, 2022 2022.

Note 11 - Capital Resources

Note 11 - Capital Resources	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	11. Capital Resources Total equity was $2.47 billion as of December 31, 2022, December 31, 2021, 2022, 2021, 2020. The Company completed its September 2021 first 2022. On May 26th, 2022, 2022, The five not not May 19, 2010, 2 May 19, 2010, $15.0 December 31, 2009, 1 December 31, 2022, 2021, $15.0 no 1 The table below summarizes the outstanding Junior Subordinated Notes issued by the Company to each trust as of December 31, 2022 2021: As of December 31, 2022 Principal Not Current Date of Payable/ Issuance Balance of Redeemable Stated Annualized Interest Rate Distribution Trust Name Date Notes Until Maturity Coupon Rate Rate Change Date (Dollars in thousands) Cathay Capital Trust I June 26, $ 20,619 June 30, June 30, 3-month 6.82 % December 29, March 30 2003 2008 2033 LIBOR 2022 June 30 + 3.15% September 30 December 30 Cathay Statutory Trust I September 17, 20,619 September 17, September 17, 3-month 6.53 % December 18, March 17 2003 2008 2033 LIBOR 2022 June 17 + 3.00% September 17 December 17 Cathay Capital Trust II December 30, 12,887 March 30, March 30, 3-month 6.57 % December 29, March 30 2003 2009 2034 LIBOR 2022 June 30 + 2.90% September 30 December 30 Cathay Capital Trust III March 28, 46,392 June 15, June 15, 3-month 4.77 % December 14, March 15 2007 2012 2037 LIBOR 2022 June 15 + 1.48% September 15 December 15 Cathay Capital Trust IV May 31, 18,619 September 6, September 6, 3-month 4.54 % December 5, March 6 2007 2012 2037 LIBOR 2022 June 6 + 1.4% September 6 December 6 Total Junior Subordinated Notes $ 119,136 As of December 31, 2021 Principal Not Current Date of Payable/ Issuance Balance of Redeemable Stated Annualized Interest Rate Distribution Trust Name Date Notes Until Maturity Coupon Rate Rate Change Date (Dollars in thousands) Cathay Capital Trust I June 26, $ 20,619 June 30, June 30, 3-month 3.37 % December 31, March 31 2003 2008 2033 LIBOR 2021 June 30 + 3.15% September 30 December 31 Cathay Statutory Trust I September 17, 20,619 September 17, September 17, 3-month 3.22 % December 17, March 17 2003 2008 2033 LIBOR 2021 June 17 + 3.00% September 17 December 17 Cathay Capital Trust II December 30, 12,887 March 30, March 30, 3-month 3.12 % December 31, March 31 2003 2009 2034 LIBOR 2021 June 30 + 2.90% September 30 December 31 Cathay Capital Trust III March 28, 46,392 June 15, June 15, 3-month 1.68 % December 15, March 15 2007 2012 2037 LIBOR 2021 June 15 + 1.48% September 15 December 15 Cathay Capital Trust IV May 31, 18,619 September 6, September 6, 3-month 1.58 % December 6, March 7 2007 2012 2037 LIBOR 2021 June 6 + 1.4% September 6 December 6 Total Junior Subordinated Notes $ 119,136

Note 12 - Income Taxes

Note 12 - Income Taxes	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Income Tax Disclosure [Text Block]	12. Income Taxes For the years ended December 31, 2022, 2021, 2020, Year Ended December 31, 2022 2021 2020 (In thousands) Current: Federal $ 57,029 $ 29,955 $ (2,196 ) State 56,953 44,416 36,787 Total Current $ 113,982 $ 74,371 $ 34,591 Deferred: Federal $ (1,776 ) $ 5,986 $ (3,234 ) State (312 ) 3,182 (6,252 ) Total Deferred $ (2,088 ) $ 9,168 $ (9,486 ) Total income tax expense $ 111,894 $ 83,539 $ 25,105 Temporary differences between the amounts reported in the financial statements and the tax basis of assets and liabilities give rise to deferred taxes. Net deferred tax assets as of December 31, 2022 2021, As of December 31, 2022 2021 (In thousands) Deferred Tax Assets Loan loss allowance, due to differences in computation of bad debts $ 47,673 $ 43,895 Accrual for bonuses 2,591 4,935 Non-accrual interest 1,572 1,117 Write-down on equity securities and venture capital investments 1,975 2,000 State tax 6,251 4,691 Unrealized loss on interest rate swaps — 1,394 Unrealized loss on securities available-for-sale, net 40,400 — Tax credits carried forward 9,136 9,136 Net operating loss carried forward 5,916 8,732 Other, net 4,711 3,765 Gross deferred tax assets $ 120,225 $ 79,665 Deferred Tax Liabilities Deferred loan costs $ (10,025 ) $ (9,936 ) Depreciation and amortization (2,856 ) (3,150 ) Unrealized gain on interest rate swaps (1,364 ) — Unrealized gain on securities available-for-sale, net — (3,823 ) OREO Installment Sale — (1,273 ) Dividends on Federal Home Loan Bank common stock (981 ) (978 ) Other, net (3,506 ) (2,168 ) Gross deferred tax liabilities $ (18,732 ) $ (21,328 ) Net deferred tax assets $ 101,493 $ 58,337 Amounts for the current year are based upon estimates and assumptions and could vary from amounts shown on the tax returns as filed. As of December 31, 2022, 382 December 31, 2022, 382 $8.8 2022 $7.3 not 2030. December 31, 2022, not 2028. In assessing the realization of deferred tax assets, management considers whether it is more likely than not not not The Company had current income tax receivables of $16.7 million as of December 31, 2022, December 31, 2021. The Company’s tax returns are open for audits by the Internal Revenue Service back to 2019 2018. 2017 July 2020 not twelve not Income tax expense results in effective tax rates that differ from the statutory federal income tax rate for the years indicated as follows: Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Tax provision at Federal statutory rate $ 99,233 21.0 % $ 80,187 21.0 % $ 53,333 21.0 % State income taxes, net of Federal income tax benefit 44,837 9.5 37,602 9.8 23,602 9.3 Excess deduction for stock option and RSUs (140 ) — (20 ) — 264 0.1 Low income housing and other tax credits (34,231 ) (7.2 ) (32,795 ) (8.6 ) (52,979 ) (20.8 ) Other, net 2,195 0.4 (1,435 ) (0.3 ) 885 0.3 Total income tax expense $ 111,894 23.7 % $ 83,539 21.9 % $ 25,105 9.9 %

Note 13 - Stockholders' Equity

Note 13 - Stockholders' Equity and Earnings Per Share	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Earnings Per Share [Text Block]	13. Stockholders Equity and Earnings per Share As a bank holding company, the Bancorp’s ability to pay dividends will depend upon the dividends it receives from the Bank and on the income it may may Under California banking law, the Bank may not, three December 31, 2022, December 31,2021. Activity in accumulated other comprehensive income, net of tax, and reclassification out of accumulated other comprehensive income for the years ended December 31, 2022, 2021 2022 2021 Pre-tax Tax expense/ (benefit) Net-of-tax Pre-tax Tax expense/ (benefit) Net-of-tax Beginning balance, loss, net of tax (In thousands) Securities available-for-sale $ 211 $ 12,200 Cash flow hedge derivatives (3,276 ) (6,890 ) Total $ (3,065 ) $ 5,310 Net unrealized gains/(losses) arising during the period Securities available-for-sale $ (149,124 ) $ (44,081 ) $ (105,043 ) $ (16,167 ) $ (4,779 ) $ (11,388 ) Cash flow hedge derivatives 10,864 3,211 7,653 5,131 1,517 3,614 Total (138,260 ) (40,870 ) (97,390 ) (11,036 ) (3,262 ) (7,774 ) Reclassification adjustment for net gains in net income Securities available-for-sale — — — (853 ) (252 ) (601 ) Cash flow hedge derivatives (2,612 ) (772 ) (1,840 ) — — — Total (2,612 ) (772 ) (1,840 ) (853 ) (252 ) (601 ) Total other comprehensive income/(loss) Securities available-for-sale (149,124 ) (44,081 ) (105,043 ) (17,020 ) (5,031 ) (11,989 ) Cash flow hedge derivatives 8,252 2,439 5,813 5,131 1,517 3,614 Total $ (140,872 ) $ (41,642 ) $ (99,230 ) $ (11,889 ) $ (3,514 ) $ (8,375 ) Ending balance, gain/(loss), net of tax Securities available-for-sale $ (104,832 ) $ 211 Cash flow hedge derivatives 2,537 (3,276 ) Total $ (102,295 ) $ (3,065 ) The Board of Directors of the Bancorp is authorized to issue preferred stock in one may may may no The following is the reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for the years as indicated: Year Ended December 31, 2022 2021 2020 Per Per Per Income Shares Share Income Shares Share Income Shares Share (Numerator) (Denominator) Amount (Numerator) (Denominator) Amount (Numerator) (Denominator) Amount (In thousands, except shares and per share data) Net income $ 360,642 $ 298,304 $ 228,860 Basic EPS, income $ 360,642 74,337,265 $ 4.85 $ 298,304 78,268,369 $ 3.81 $ 228,860 79,584,560 $ 2.88 Effect of dilutive stock options and RSU 327,470 302,269 193,287 Diluted EPS, income $ 360,642 74,664,735 $ 4.83 $ 298,304 78,570,638 $ 3.80 $ 228,860 79,777,847 $ 2.87

Note 14 - Commitments and Conti

Note 14 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	14. Commitments and Contingencies Legal Proceedings. not In accordance with ASC 450, may not may Lending not The Company’s exposure to credit loss in the event of non-performance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. Unless noted otherwise, the Company does not Financial instruments for which contract amounts represent the amount of credit risk include the following: As of December 31, 2022 2021 (In thousands) Commitments to extend credit $ 3,630,304 $ 3,297,362 Standby letters of credit 315,821 266,490 Commercial letters of credit 29,416 16,652 Total $ 3,975,541 $ 3,580,504 Commitments to extend credit are agreements to lend to a client provided there is no not As of December 31, 2022, not no As of December 31, 2022, December 31, 2021 Commercial letters of credit and bill of lading guarantees are issued to facilitate domestic and foreign trade transactions while standby letters of credit are issued to make payments on behalf of clients if certain specified future events occur. The credit risk involved in issuing letters of credit and bill of lading guarantees is essentially the same as that involved in making loans to clients.

Note 15 - Leases

Note 15 - Leases	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Lessee, Operating Leases [Text Block]	15. Leases The Company enters into operating leases in the normal course of business primarily for branch offices, office spaces and certain equipment. The Company may ROU assets and lease liabilities are recognized at the lease commencement date based on the estimated present value of the lease payments over the lease term. The Company uses its incremental borrowing rate to determine the present value of its lease liabilities. The Company has elected to not not 12 not December 31, 2022 2021. The following table represents the operating lease amounts reported on the Consolidated Balance Sheets and other supplemental information as of December 31, 2022, December 31, 2021: December 31, 2022 December 31, 2021 (Dollars in millions) Operating Leases: ROU assets $ 29.6 $ 27.8 Lease liabilities $ 32.5 $ 30.7 Weighted-average remaining lease term (in years) 4.0 4.4 Weighted-average discount rate 2.90 % 2.61 % Operating cash flows from operating leases $ 11.4 $ 9.9 ROU assets obtained in exchange for lease obligations $ 5.9 $ 6.0 Operating lease expense is recognized on a straight-line basis over the lease term. Operating lease expense was $13.1 million, $11.6 million and $11.7 million for the years ended December 31, 2022, 2021 2020, The following table presents a maturity analysis of the Company’s operating lease liabilities as of December 31, 2022: As of December 31, 2022 Operating Leases (In thousands) 2023 $ 10,833 2024 $ 8,415 2025 $ 5,702 2026 $ 4,587 2027 $ 2,991 Thereafter $ 1,955 Total lease payments $ 34,483 Less amount of payment representing interest (1,965 ) Total present value of lease payments $ 32,518

Note 16 - Financial Derivatives

Note 16 - Financial Derivatives	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	16. Financial Derivatives The Company does not may may may The Company follows ASC Topic 815 not third not The Company offers various interest rate derivative contracts to its clients. When derivative transactions are executed with its clients, the derivative contracts are offset by paired trades with third not not third December 31, 2022 2021, third December 31, 2022, December 31, 2022 In May 2014, ten five ten June 2014 June 2024, three December 31, 2022 December 31, 2022, 2021, not The notional amount and net unrealized loss of the Company’s cash flow derivative financial instruments as of December 31, 2022, December 31, 2021, December 31, 2022 December 31, 2021 Cash flow swap hedges: ($ in thousands) Notional $ — $ 119,136 Weighted average fixed rate-pay 0.00 % 2.61 % Weighted average variable rate-receive 0.00 % 0.16 % Loss, net of taxes (1) $ — $ (3,276 ) Year ended December 31, 2022 December 31, 2021 Periodic net settlement of swaps (2) $ 772 $ 2,949 ( 1 ( 2 As of December 31, 2022, three ten December 31, 2022, 2021, not The Company has designated as a partial-term hedging election $669.7 million and $404.4 million notional as last-of-layer hedge on pools of loans with a notational value of $1.2 billion and $748.6 million as of December 31, 2022 2021, not 1 1 December 31, 2022 2021, Interest rate swap contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have a strong credit profile and be approved by the Company’s Board of Directors. The Company’s credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps by each counterparty. Credit exposure may December 31, 2022, December 31, 2021. The notional amount and net unrealized loss of the Company’s fair value derivative financial instruments as of December 31, 2022, December 31, 2021, December 31, 2022 December 31, 2021 Fair value swap hedges: ($ in thousands) Notional $ 874,034 $ 729,280 Weighted average fixed rate-pay 2.12 % 2.65 % Weighted average variable rate spread 0.68 % 1.31 % Weighted average variable rate-receive 2.61 % 1.43 % Net gain/(loss) (1) $ 38,589 $ (1,013 ) Year ended December 31, 2022 December 31, 2021 Periodic net settlement of SWAPs (2) $ 3,107 $ (9,345 ) ( 1 ( 2 Included in the total notional amount of $874.0 million of the fair value interest rate contracts entered into with financial counterparties as of December 31, 2022, December 31, 2022. The Company enters into foreign exchange forward contracts with various counterparties to mitigate the risk of fluctuations in foreign currency exchange rates for foreign exchange certificates of deposit or foreign exchange contracts entered into with our clients. These contracts are not The notional amount and fair value of the Company’s derivative financial instruments not December 31, 2022, December 31, 2021, December 31, 2022 December 31, 2021 Derivative financial instruments not designated as hedging instruments: (In thousands) Notional amounts: Option contracts $ — $ 676 Forward, and swap contracts with positive fair value $ 72,996 $ 181,997 Forward, and swap contracts with negative fair value $ 170,213 $ 51,782 Fair value: Option contracts $ — $ 3 Forward, and swap contracts with positive fair value $ 448 $ 1,113 Forward, and swap contracts with negative fair value $ (942 ) $ (327 )

Note 17 - Fair Value Measuremen

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Fair Value Disclosures [Text Block]	17. Fair Value Measurements and Fair Value of Financial Instruments The Company uses fair value to measure certain assets and liabilities on a recurring basis, primarily securities available for-sale and derivatives. For assets measured at the lower of cost or fair value, the fair value measurement criteria may may not The Company used valuation methodologies to measure assets at fair value under ASC Topic 820 825, 2016 01 2018 03, not one three ● Level 1 ● Level 2 not not ● Level 3 The classification of assets and liabilities within the hierarchy is based on whether inputs to the valuation methodology used are observable or unobservable, and the significance of those inputs in the fair value measurement. The Company’s assets and liabilities are classified in their entirety based on the lowest level of input that is significant to their fair value measurements as follows: Financial assets and liabilities measured at fair value on a recurring basis The Company uses the following methodologies to measure the fair value of its financial assets and liabilities on a recurring basis: Securities Available for Sale and Equity Securities 1 2 Warrants 3 Currency Option Contracts and Foreign Exchange Contracts 2 Interest Rate Swaps third 2 The following tables present the Company’s hierarchy for its assets and liabilities measured at fair value on a recurring basis as of December 31, 2022, December 31, 2021: As of December 31, 2022 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value Assets (In thousands) Securities available-for-sale U.S. Treasury securities $ 240,500 $ — $ — $ 240,500 U.S. government agency entities — 63,610 — 63,610 U.S. government sponsored entities — 30,000 — 30,000 Mortgage-backed securities — 867,094 — 867,094 Collateralized mortgage obligations — 31,061 — 31,061 Corporate debt securities — 241,083 — 241,083 Total securities available-for-sale 240,500 1,232,848 — 1,473,348 Equity securities Mutual funds 5,509 — — 5,509 Preferred stock of government sponsored entities 1,289 — — 1,289 Other equity securities 15,360 — — 15,360 Total equity securities 22,158 — — 22,158 Warrants — — 50 50 Interest rate swaps — 44,443 — 44,443 Foreign exchange contracts — 448 — 448 Total assets $ 262,658 $ 1,277,739 $ 50 $ 1,540,447 Liabilities Interest rate swaps $ — $ 51,864 $ — $ 51,864 Foreign exchange contracts — 942 — 942 Total liabilities $ — $ 52,806 $ — $ 52,806 As of December 31, 2021 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value Assets (In thousands) Securities available-for-sale U.S. Treasury securities $ — $ — $ — $ — U.S. government agency entities — 87,509 — 87,509 Mortgage-backed securities — 888,665 — 888,665 Collateralized mortgage obligations — 9,117 — 9,117 Corporate debt securities — 142,018 — 142,018 Total securities available-for-sale — 1,127,309 — 1,127,309 Equity securities Mutual funds 6,230 — — 6,230 Preferred stock of government sponsored entities 1,811 — — 1,811 Other equity securities 14,278 — — 14,278 Total equity securities 22,319 — — 22,319 Warrants — — 23 23 Interest rate swaps — 10,090 — 10,090 Foreign exchange contracts — 1,113 — 1,113 Total assets $ 22,319 $ 1,138,512 $ 23 $ 1,160,854 Liabilities Interest rate swaps $ — $ 12,642 $ — $ 12,642 Foreign exchange contracts — 327 — 327 Total liabilities $ — $ 12,969 $ — $ 12,969 Assets measured at estimated fair value on a non-recurring basis. Certain assets or liabilities are required to be measured at estimated fair value on a nonrecurring basis subsequent to initial recognition. Generally, these adjustments are the result of lower-of-cost-or-fair value or other impairment write-downs of individual assets. In determining the estimated fair values during the period, the Company determined that substantially all the changes in estimated fair value were due to declines in market conditions versus instrument specific credit risk. For the year ended December 31, 2022, December 31, 2021, no For financial assets measured at fair value on a nonrecurring basis that were still reflected in the Consolidated Balance Sheets as of December 31, 2022, 2021, December 31, 2022, December 31, 2021, As of December 31, 2022 Total Losses Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2022 December 31, 2021 Assets (In thousands) Non-accrual loans by type: Commercial loans $ — $ — $ 12,950 $ 12,950 $ 1,786 $ 1,012 Commercial mortgage loans — — 32,205 32,205 2,091 — Residential mortgage and equity lines — — 8,978 8,978 — — Installment and other loans — — 8 8 — — Total non-accrual loans — — 54,141 54,141 3,877 1,012 Other real estate owned (1) — — 4,328 4,328 — 17 Investments in venture capital — — 689 689 268 143 Total assets $ — $ — $ 59,158 $ 59,158 $ 4,145 $ 1,172 ( 1 As of December 31, 2021 Total Losses/(Gains) Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2021 December 31, 2020 Assets (In thousands) Non-accrual loans by type: Commercial loans $ — $ — $ 4,327 $ 4,327 $ 1,012 $ 7,012 Commercial mortgage loans — — 13,335 13,335 — — Residential mortgage and equity lines — — 5,243 5,243 — — Total non-accrual loans — — 22,905 22,905 1,012 7,012 Other real estate owned (1) — — 4,589 4,589 17 717 Investments in venture capital — — 952 952 143 107 Total assets $ — $ — $ 28,446 $ 28,446 $ 1,172 $ 7,836 ( 1 The significant unobservable inputs used in the fair value measurement of collateral for collateral-dependent non-accrual loans was primarily based on the appraised value of collateral adjusted by estimated sales cost and commissions. The Company generally obtains new appraisal reports on an annual basis. As the Company’s primary objective in the event of default would be to monetize the collateral to settle the outstanding balance of the loan, less marketable collateral would receive a larger discount. The Company is using borrower specific collateral discounts with various discount levels for accounts receivable and inventory collateral. The fair value of non-accrual loans was calculated based on the net realizable fair value of the collateral or the observable market price of the most recent sale or quoted price from loans held for sale. The Company does not 2 12 3 The significant unobservable inputs used in the fair value measurement of OREO was primarily based on the appraised value of OREO adjusted by estimated sales cost and commissions. The Company applies estimated sales cost and commission ranging from 3% to 6% of collateral value of impaired loans, quoted price or loan sale price of loans held for sale, and appraised value of OREOs. The significant unobservable inputs in the Black-Scholes option pricing model for the fair value of warrants are the expected life of warrant ranging from one six Fair value estimates were made at specific points in time, based on relevant market information and information about the financial instrument. Because no The following tables present carrying amounts and estimated fair values of certain financial instruments as of the dates indicated: December 31, 2022 December 31, 2021 Carrying Carrying Amount Fair Value Amount Fair Value (In thousands) Financial Assets Cash and due from banks $ 195,440 $ 195,440 $ 134,141 $ 134,141 Short-term investments 966,962 966,962 2,315,563 2,315,563 Securities available-for-sale 1,473,348 1,473,348 1,127,309 1,127,309 Loans, net 18,100,898 17,944,588 16,202,001 16,499,869 Equity securities 22,158 22,158 22,319 22,319 Investment in Federal Home Loan Bank stock 17,250 17,250 17,250 17,250 Warrants 50 50 23 23 Notional Notional Amount Fair Value Amount Fair Value Foreign exchange contracts $ 72,996 $ 448 $ 181,997 $ 1,113 Interest rate swaps 817,615 44,443 904,635 10,090 Financial Liabilities Carrying Carrying Amount Fair Value Amount Fair Value Deposits $ 18,505,279 $ 18,572,387 $ 18,058,842 $ 18,051,720 Advances from Federal Home Loan Bank 485,000 482,737 20,000 21,279 Other borrowings 22,600 18,385 23,145 18,945 Long-term debt 119,136 68,231 119,136 62,274 Notional Notional Amount Fair Value Amount Fair Value Option contracts $ — $ — $ 676 $ 3 Foreign exchange contracts 170,213 942 51,782 327 Interest rate swaps 595,426 51,864 872,400 12,642 Notional Notional Amount Fair Value Amount Fair Value Off-Balance Sheet Financial Instruments Commitments to extend credit $ 3,630,304 $ (14,797 ) $ 3,297,362 $ (12,594 ) Standby letters of credit 315,821 (2,738 ) 266,490 (2,640 ) Other letters of credit 29,416 (33 ) 16,652 (13 ) Bill of lading guarantees — — — — The following tables present the level in the fair value hierarchy for the estimated fair values of certain financial instruments as of December 31, 2022, December 31, 2021. As of December 31, 2022 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 195,440 $ 195,440 $ — $ — Short-term investments 966,962 966,962 — — Securities available-for-sale 1,473,348 240,500 1,232,848 — Loans, net 17,944,588 — — 17,944,588 Equity securities 22,158 22,158 — — Investment in Federal Home Loan Bank stock 17,250 — 17,250 — Warrants 50 — — 50 Financial Liabilities Deposits 18,572,387 — — 18,572,387 Advances from Federal Home Loan Bank 482,737 — 482,737 — Other borrowings 18,385 — — 18,385 Long-term debt 68,231 — 68,231 — As of December 31, 2021 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 134,141 $ 134,141 $ — $ — Short-term investments 2,315,563 2,315,563 — — Securities available-for-sale 1,127,309 — 1,127,309 — Loans, net 16,499,869 — — 16,499,869 Equity securities 22,319 22,319 — — Investment in Federal Home Loan Bank stock 17,250 — 17,250 — Warrants 23 — — 23 Financial Liabilities Deposits 18,051,720 — — 18,051,720 Advances from Federal Home Loan Bank 21,279 — 21,279 — Other borrowings 18,945 — — 18,945 Long-term debt 62,274 — 62,274 —

Note 18 - Revenue from Contract

Note 18 - Revenue from Contracts with Customers	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	18. Revenue from Contracts with Clients The Company’s revenue from contracts with clients consists primarily of service charges and fees related to deposit accounts and wealth management fees. The new standard did not no The following is a summary of revenue from contracts with clients that are in-scope and not 606: Year Ended December 31, 2022 2021 2020 (In thousands) Non-interest income, in-scope: Fees and service charges on deposit accounts $ 9,394 $ 8,618 $ 7,965 Wealth management fees 16,436 15,056 10,529 Other service fees (1) 16,349 15,400 13,742 Total in-scope non-interest income 42,179 39,074 32,236 Noninterest income, not in-scope (2) 14,635 15,529 10,584 Total non-interest income $ 56,814 $ 54,603 $ 42,820 ( 1 Other service fees comprise of fees related to letters of credit, wire fees, fees on foreign exchange transactions and other immaterial individual revenue streams. ( 2 These amounts primarily represent revenue from contracts with customers that are out of the scope of ASC 606. The major revenue streams by fee type that are within the scope of ASC 606 Fees and Services Charges on Deposit Accounts Fees and service charges on deposit accounts include charges for analysis, overdraft, cash checking, ATM, and safe deposit activities executed by our deposit clients, as well as interchange income earned through card payment networks for the acceptance of card-based transactions. Fees earned from our deposit clients are governed by contracts that provide for overall custody and access to deposited funds and other related services and can be terminated at will by either party. Fees received from deposit clients for the various deposit activities are recognized as revenue once the performance obligations are met. The adoption of ASU 2014 09 no Wealth Management Fees The Company employs financial consultants to provide investment planning services for clients including wealth management services, asset allocation strategies, portfolio analysis and monitoring, investment strategies, and risk management strategies. The fees the Company earns are variable and are generally received monthly. The Company recognizes revenue for the services performed at quarter end based on actual transaction details received from the broker dealer the Company engages. Practical Expedients and Exemptions The Company applies the practical expedient in ASC 606 10 50 14 not one one In addition, given the short-term nature of the Company’s contracts, the Company also applies the practical expedient in ASC 606 10 32 18 not one

Note 19 - Employee Benefit Plan

Note 19 - Employee Benefit Plans	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	19. Employee Benefit Plans Employee Stock Ownership Plan. two 1,000 two not 2004 not June 17, 2004, 2022, 2021, 2020, 2022, 2021, 2020. 2022, 2021, 2020. December 31, 2022, 401 1997, 401 March 1, 1997. one 21 first may not may October 1, 2022, three three June 1, 2018, first first 30 2022, 2021, 2020. may Bank-Owned Life Insurance. December 31, 2022 2021,

Note 20 - Equity Incentive Plan

Note 20 - Equity Incentive Plans	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Share-Based Payment Arrangement [Text Block]	20. Equity Incentive Plans Pursuant to the Company’s 2005 May 2015, may As of December 31, 2022, 2005 In addition to stock options, the Company also grants restricted stock units (“RSUs”) that are generally granted at no three one three may may Performance-based RSUs are granted at the target amount of awards. Based on the Company’s attainment of specified performance goals and consideration of market conditions, the number of shares that vest can be adjusted to a minimum of zero three Compensation costs for the time-based awards are based on the quoted market price of the Company’s stock at the grant date. Compensation costs associated with performance-based RSUs are based on grant date fair value, which considers both market and performance conditions. Compensation costs of both time-based and performance-based awards are recognized on a straight-line basis from the grant date until the vesting date of each grant. The following table presents RSU activity for 2022, 2021, 2020: Time-Based RSUs Performance-Based RSUs Weighted-Average Weighted-Average Grant Date Grant Date Shares Fair Value Shares Fair Value Balance at December 31, 2019 273,200 35.90 297,744 32.65 Granted 110,495 21.79 212,369 22.96 Vested (80,654 ) 25.34 (193,240 ) 21.68 Forfeited (10,371 ) 39.04 (14,071 ) 39.08 Balance at December 31, 2020 292,670 33.37 302,802 32.55 Granted 63,467 41.18 113,764 37.13 Vested (96,869 ) 41.72 (76,292 ) 41.69 Forfeited (23,324 ) 29.92 (7,768 ) 40.85 Balance at December 31, 2021 235,944 32.38 332,506 31.82 Granted 67,652 46.69 112,393 40.24 Vested (89,386 ) 40.92 (81,934 ) 44.52 Forfeited (12,151 ) 34.07 — — Balance at December 31, 2022 202,059 33.29 362,965 31.56 The compensation expense recorded for RSUs was $7.0 million in 2022, 2021, 2020. December 31, 2022, 2021, December 31, 2022,

Note 21 - Condensed Financial I

Note 21 - Condensed Financial Information of Cathay General Bancorp	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	21. Condensed Financial Information of Cathay General Bancorp The condensed financial information of the Bancorp as of December 31, 2022, December 31, 2021, December 31, 2022, 2021, 2020 Balance Sheets As of December 31, 2022 2021 (In thousands, except share and per share data) Assets Cash $ 14,902 $ 19,629 Cash pledged as margin for interest rate swaps — 1,071 Short-term certificates of deposit 334 333 Equity securities 16,360 15,627 Investment in Cathay Bank subsidiary 2,566,266 2,530,850 Investment in non-bank subsidiary 764 807 Other assets 4,385 4,691 Total assets $ 2,603,011 $ 2,573,008 Liabilities Junior subordinated debt $ 119,136 $ 119,136 Other liabilities 9,835 7,621 Total liabilities 128,971 126,757 Commitments and contingencies — — Stockholders' equity Common stock, $ 0.01 100,000,000 91,090,614 72,742,151 90,871,860 75,750,862 911 909 Additional paid-in-capital 981,119 972,474 Accumulated other comprehensive loss, net (102,295 ) (3,065 ) Retained earnings 2,244,856 1,985,168 Treasury stock, at cost ( 18,348,463 15,120,998 (650,551 ) (509,235 ) Total equity 2,474,040 2,446,251 Total liabilities and equity $ 2,603,011 $ 2,573,008 Statements of Operations Year Ended December 31, 2022 2021 2020 (In thousands) Cash dividends from Cathay Bank $ 232,773 $ 230,000 $ 146,000 Interest income 30 36 49 Interest expense 5,560 5,773 5,906 Non-interest Income/(loss) 1,018 3,117 (435 ) Non-interest expense 3,937 3,224 4,846 Income before income tax expense 224,324 224,156 134,862 Income tax expense (2,885 ) (1,810 ) (3,692 ) Income before undistributed earnings of subsidiaries 227,209 225,966 138,554 Undistributed earnings of subsidiary 133,433 72,338 90,306 Net income $ 360,642 $ 298,304 $ 228,860 Statements of Cash Flows Year Ended December 31, 2022 2021 2020 (In thousands) Cash flows from Operating Activities Net income $ 360,642 $ 298,304 $ 228,860 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed earnings of subsidiaries (133,433 ) (72,338 ) (90,306 ) Loss/(gain) on equity securities (733 ) (122 ) 641 Write-downs on venture capital and other investments 268 73 107 (Gain)/loss in fair value of warrants (27 ) — 18 Stock issued to directors as compensation 849 850 800 Net change in accrued interest receivable and other assets (434 ) 1,918 (1,182 ) Net change in other liabilities 8,532 4,934 (9,853 ) Net cash provided by operating activities 235,664 233,619 129,085 Cash flows from Investment Activities Proceeds from liquidation of subsidiary — — 2,399 Proceeds from sale of equity securities — — 3,112 Venture capital and other investments (5 ) 357 116 Net cash (used)/provided by investment activities (5 ) 357 5,627 Cash flows from Financing Activities Repayment of long-term debt — — (7,644 ) Cash dividends paid (100,955 ) (99,322 ) (98,688 ) Proceeds from shares issued under the Dividend Reinvestment Plan 3,719 3,563 9,777 Taxes paid related to net share settlement of RSUs (2,905 ) (2,632 ) (1,911 ) Purchase of treasury stock (141,316 ) (167,104 ) (23,593 ) Net cash used in financing activities (241,457 ) (265,495 ) (122,059 ) Increase/(decrease) in cash, cash equivalents and restricted cash (5,798 ) (31,519 ) 12,653 Cash, cash equivalents, and restricted cash, beginning of the year 20,700 52,219 39,566 Cash, cash equivalents, and restricted cash, end of the period $ 14,902 $ 20,700 $ 52,219

Note 22 - Dividend Reinvestment

Note 22 - Dividend Reinvestment Plan	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Dividend Reinvestment Plan [Text Block]	22. Dividend Reinvestment Plan The Company has a Dividend Reinvestment Plan which allows for participants’ reinvestment of cash dividends and certain optional additional investments in the Bancorp’s common stock. Shares issued under the plan and the consideration received were 86,501 shares for $3.7 million in 2022, 2021, 2020.

Note 23 - Regulatory Matters

Note 23 - Regulatory Matters	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Regulatory Capital Requirements under Banking Regulations [Text Block]	23. Regulatory Matters The Bank is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can result in certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts, and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. The Federal Deposit Insurance Corporation has established five 1 1 1 December 31, 2022, 2021, The Bancorp’s and the Bank’s capital and leverage ratios as of December 31, 2022, December 31, 2021, Actual Minimum Capital Required - Basel III Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2022 (In thousands) Common Equity Tier 1 to Risk-Weighted Assets Cathay General Bancorp $ 2,182,066 12.21 $ 1,250,914 7.00 $ 1,161,563 6.50 Cathay Bank 2,276,830 12.75 1,250,461 7.00 1,161,142 6.50 Tier 1 Capital to Risk-Weighted Assets Cathay General Bancorp 2,182,066 12.21 1,518,967 8.50 1,429,616 8.00 Cathay Bank 2,276,830 12.75 1,518,417 8.50 1,429,098 8.00 Total Capital to Risk-Weighted Assets Cathay General Bancorp 2,452,781 13.73 1,876,371 10.50 1,787,020 10.00 Cathay Bank 2,432,045 13.61 1,875,691 10.50 1,786,373 10.00 Leverage Ratio Cathay General Bancorp 2,182,066 10.08 865,470 4.00 1,081,838 5.00 Cathay Bank 2,276,830 10.53 864,918 4.00 1,081,148 5.00 Actual Minimum Capital Required - Basel III Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2021 (In thousands) Common Equity Tier 1 to Risk-Weighted Assets Cathay General Bancorp $ 2,056,601 12.80 $ 1,124,381 7.00 $ 1,044,068 6.50 Cathay Bank 2,137,925 13.32 1,123,721 7.00 1,043,455 6.50 Tier 1 Capital to Risk-Weighted Assets Cathay General Bancorp 2,056,601 12.80 1,365,320 8.50 1,285,007 8.00 Cathay Bank 2,137,925 13.32 1,364,519 8.50 1,284,253 8.00 Total Capital to Risk-Weighted Assets Cathay General Bancorp 2,315,358 14.41 1,686,572 10.50 1,606,259 10.00 Cathay Bank 2,281,182 14.21 1,685,582 10.50 1,605,316 10.00 Leverage Ratio Cathay General Bancorp 2,056,601 10.40 791,226 4.00 989,033 5.00 Cathay Bank 2,137,925 10.82 790,430 4.00 988,037 5.00

Note 24 - Balance Sheet Offsett

Note 24 - Balance Sheet Offsetting	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Supplemental Balance Sheet Disclosures [Text Block]	24. Balance Sheet Offsetting Certain financial instruments, including resell and repurchase agreements, securities lending arrangements and derivatives, may may not Financial instruments that are eligible for offset in the Consolidated Balance Sheets, as of December 31, 2022, December 31, 2021, Gross Amounts Not Offset in the Balance Sheet Gross Amounts Recognized Gross Amounts Offset in the Balance Sheet Net Amounts Presented in the Balance Sheet Financial Instruments Collateral Posted Net Amount December 31, 2022 (In thousands) Assets: Derivatives $ 90,451 $ 46,008 $ 44,443 $ — $ 42,930 $ 1,513 Liabilities: Derivatives $ 51,864 $ — $ 51,864 $ — $ — $ 51,864 December 31, 2021 Assets: Derivatives $ 10,090 $ — $ 10,090 $ — $ — $ 10,090 Liabilities: Derivatives $ 15,748 $ (3,106 ) $ 12,642 $ — $ — $ 12,642

Note 25 - Subsequent Events

Note 25 - Subsequent Events	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Subsequent Events [Text Block]	25. Subsequent Events On February 16, 2023, first 2023 March 9, 2023 February 27, 2023 On February 21, 2023, May 2022 The Company has evaluated the effect of events that have occurred subsequent to December 31, 2022, none

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	Use of Estimates.
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations. December 31, 2022, December 31, 2022,
Marketable Securities, Policy [Policy Text Block]	Securities Available for Sale. January 1, 2021, 2016 13, 1 2 not Interest income includes amortization of premiums and discounts as an adjustment of yield on a level-yield basis. Premiums on callable debt securities are amortized to their earliest call date. Gains and losses on sales are recorded on the trade date and determined using the specific identification method. A debt security is placed on nonaccrual status at the time any principal or interest payments become delinquent by 90 not No
Allowance for Credit Losses on Available for Sale Debt Securities [Policy Text Block]	Allowance for Credit Losses on Available for Sale Securities. first not not not Changes in the allowance for credit losses are recorded as provision for credit loss expense. Losses are charged against the allowance when management believes the uncollectability of an available-for-sale security is confirmed or when either of the criteria regarding intent or requirement to sell is met. The amortized cost of the Company’s AFS debt securities exclude accrued interest, which is included in “accrued interest receivable” on the Consolidated Balance Sheets. The Company has made an accounting policy election not Trading securities
Investment in Federal Home Loan Bank Stock [Policy Text Block]	Investment in Federal Home Loan Bank ( FHLB ) Stock. December 31, 2022, 2021. December 31, 2022,
Financing Receivable, Held-for-investment [Policy Text Block]	Loans Held for Investment. 360 Generally, loans are placed on nonaccrual status when they become 90 not not not
Financing Receivable, Held-for-sale [Policy Text Block]	Loans held for sale
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Credit Losses ( ACL ) on Loans Held for Investment. 2016 13, Financial Instruments Credit Losses (Topic 326 January 1, 2021 The ACL on loans held for investment is the combination of the allowance for loan losses and the reserve for unfunded loan commitments. The allowance for loan losses is reported as a reduction of the amortized cost basis of loans, while the reserve for unfunded loan commitments is included within "other liabilities" on the Consolidated Balance Sheets. The amortized cost basis of loans does not Under the Company’s CECL approach, management estimates the ACL using relevant available information from internal and external sources, relating to past events, GDP, unemployment rates, CRE and home price indexes, and reasonable and supportable economic forecasts that vary by loan portfolio. We use economic forecasts from Moody’s Analytics in this process. The economic forecast is updated monthly; therefore, the one one not one Under the CECL methodology, quantitative and qualitative loss factors are applied to our population of loans on a collective pool basis when similar risk characteristics exist. When loans do not not may one 1 2 not Under the Company’s CECL methodology, nine three six six 2007 fourth 2020. fourth 2007 fourth 2020. The Company’s CECL methodology utilizes an eight four 1 10th 3 90th four six The Company’s CECL methodology estimates expected credit losses over the contractual term of the loans, adjusted for expected prepayments when appropriate. The contractual term excludes expected extensions, renewals, and modifications unless either of the following applies: (i) management has a reasonable expectation at the reporting date that a troubled debt restructuring will be executed with an individual borrower or (ii) the extension or renewal options are included in the original or modified contract at the reporting date and are not The simplified approach portfolios include Small Business Administration (“SBA”) loans, Home Equity Lines of Credit (“HELOCs”) and cash-secured loans, which are not three first eight four Under the Company’s CECL methodology, the qualitative portion of the reserve on pooled loans represents management’s judgment of additional considerations to account for internal and external risk factors that are not may not The Company’s CECL methodology requires a significant amount of management judgment in determining the appropriate allowance for credit losses. Several of the steps in the methodology involve judgment and are subjective in nature including, among other things: segmenting the loan portfolio; determining the period over which loss history to consider; selecting predictive econometric regression models that use appropriate macroeconomic variables; determining the methodology to forecast prepayments; selecting the most appropriate economic forecast scenario; determining the length of the R&S forecast and reversion periods; estimating expected utilization rates on unfunded loan commitments; and assessing relevant and appropriate qualitative factors. In addition, the CECL methodology is dependent on economic forecasts that are inherently imprecise and will change from period to period. Although the allowance for credit losses is considered by management to be appropriate, there can be no Management believes the allowance for credit losses is appropriate for the CECL in our loan portfolio and associated unfunded commitments, and the risk ratings and inherent loss rates currently assigned are reasonable and appropriate as of the reporting date. Individually Evaluated Loans not no may one 90 Prior to January 1, 2021, • Specific allowance: For impaired loans, we provide specific allowances for loans that are not may • General allowance: The unclassified portfolio is segmented on a group basis. Segmentation is determined by loan types and common risk characteristics. The non-impaired loans are grouped into 19 two ten one one one one one one one fourth 2016, five eight first 2009 forty-eight fourth 2020. five
Troubled Debt Restructuring [Policy Text Block]	Troubled Debt Restructured Loan ( TDR ). may six The allowance for credit loss on a TDR is measured using the same method as all other loans held for investment, except when the value of a concession cannot be measured using a method other than the discounted cash flow method. When the value of a concession is measured using the discounted cash flow method, the allowance for credit loss is determined by discounting the expected future cash flows at the original interest rate of the loan. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) as extended by the Consolidated Appropriation Act, 2021 19 not March 1, 2020, January 1, 2022 not 30 December 31, 2019.
Loan Commitments, Policy [Policy Text Block]	Unfunded Loan Commitments. not 14 The Company estimates expected credit losses over the contractual period in which the Company is exposed to credit risk via a contractual obligation to extend credit, unless that obligation is unconditionally cancellable by the Company, using the same loss factors as used for the allowance for loan losses. The reserve for unfunded loan commitments uses the expected historical usage rate of the unfunded commitments during the contractual life of the commitments. The allowance for unfunded commitments is included in “other liabilities” on the Consolidated Balance Sheets. Changes in the allowance for unfunded commitments are included in the provision for loan losses.
Letter of Credit Fees [Policy Text Block]	Letter of Credit Fees
Real Estate Owned, Valuation Allowance, Policy [Policy Text Block]	Other Real Estate Owned ( OREO ).
Investments In Affordable Housing [Policy Text Block]	Investments in Affordable Housing Partnerships and Other Tax Credit Investments. 6 December 31, 2022, ten ten
Investments in Venture Capital [Policy Text Block]	Investments in Venture Capital.
Property, Plant and Equipment, Policy [Policy Text Block]	Premises and Equipment. Type Estimated Useful Life (years) Buildings 15 to 45 Building improvements 5 to 20 Furniture, fixtures, and equipment 3 to 25 Leasehold improvements Shorter of useful lives or the terms of the leases Improvements are capitalized and amortized to occupancy expense based on the above table. Construction in process is carried at cost and includes land acquisition cost, architectural fees, general contractor fees, capitalized interest and other costs related directly to the construction of a property.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Other Intangible Assets. December 31 may not no December 31, 2022 2021.
Intangible Assets, Finite-Lived, Policy [Policy Text Block]	Other intangible assets.
Bank-Owned Life Insurance [Policy text Block]	Bank-Owned Life Insurance.
Share-Based Payment Arrangement [Policy Text Block]	Stock-Based Compensation.
Derivatives, Policy [Policy Text Block]	Derivatives 815 not third not
Foreign Exchanged Forwards and Foreign Currency Option Contracts [Policy Text Block]	Foreign Exchange Forwards and Foreign Currency Option Contracts. not
Income Tax, Policy [Policy Text Block]	Income Taxes. not not
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income/(loss).
Earnings Per Share, Policy [Policy Text Block]	Net Income per Common Share
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Translation.
Cash and Cash Equivalents, Policy [Policy Text Block]	Statement of Cash Flows three
Segment Reporting, Policy [Policy Text Block]	Segment Reporting. one
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting Pronouncements In March 2020, No. 2020 04, 848 No. 2020 04 March 12, 2020, December 31, 2022 2022 06 December 31, 2024 no 848. December 31, 2024. January 2021, 2021 01 848 may 2020 04 2021 01 January 1, 2021. not In March 2022, 2022 01, 815 not 2022 01 one 2022 01 2022 01 January 1, 2023 2022 01 not In March 2022, 2022 02, 326 2022 02 310 40, 2022 02 326 20, 2022 02 January 1, 2023 2022 02 not In June 2022, 2022 03, 820 2022 03 not not 2022 03 2022 03 January 1, 2024 2022 03 not

Note 1 - Summary of Significa_2

Note 1 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Estimated Useful Lives of Assets [Table Text Block]	Type Estimated Useful Life (years) Buildings 15 to 45 Building improvements 5 to 20 Furniture, fixtures, and equipment 3 to 25 Leasehold improvements Shorter of useful lives or the terms of the leases

Note 2 - Business Combinations

Note 2 - Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	Balance Sheet (In thousands) Assets: Cash and cash equivalents $ 473 Loans 641,839 Right-of-use assets - operating leases 6,453 Core deposit intangible 3,138 Other 561 Total assets $ 652,464 Liabilities assumed: Deposits $ 575,163 Lease liabilities 6,453 Total liabilities assumed $ 581,616 Net assets acquired $ 70,848 Total cash paid at closing $ 74,355 Goodwill $ 3,507

Note 4 - Investment Securities

Note 4 - Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]	As of December 31, 2022 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ 241,611 $ — $ 1,111 $ 240,500 U.S. government agency entities 63,347 384 121 63,610 U.S. government sponsored entities 30,000 — — 30,000 Mortgage-backed securities 993,883 194 126,983 867,094 Collateralized mortgage obligations 34,552 — 3,491 31,061 Corporate debt securities 258,780 112 17,809 241,083 Total $ 1,622,173 $ 690 $ 149,515 $ 1,473,348 As of December 31, 2021 Gross Gross Amortized Unrealized Unrealized Cost Gains Losses Fair Value (In thousands) Securities Available-for-Sale U.S. treasury securities $ — $ — $ — $ — U.S. government agency entities 86,475 1,169 135 87,509 Mortgage-backed securities 886,614 9,465 7,414 888,665 Collateralized mortgage obligations 9,547 — 430 9,117 Corporate debt securities 144,231 441 2,654 142,018 Total $ 1,126,867 $ 11,075 $ 10,633 $ 1,127,309
Investments Classified by Contractual Maturity Date [Table Text Block]	Securities Available-for-Sale As of December 31, 2022 Amortized Cost Fair Value (In thousands) Due in one year or less $ 311,603 $ 310,050 Due after one year through five years 213,395 196,616 Due after five years through ten years 168,767 159,448 Due after ten years 928,408 807,234 Total $ 1,622,173 $ 1,473,348
Schedule of Unrealized Loss on Investments [Table Text Block]	As of December 31, 2022 Less than 12 months 12 months or longer Total Fair Gross Unrealized Fair Gross Unrealized Fair Gross Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ 240,500 $ 1,111 $ — $ — $ 240,500 $ 1,111 U.S. government agency entities — — 1,806 121 1,806 121 Mortgage-backed securities 394,123 33,042 452,739 93,941 846,862 126,983 Collateralized mortgage obligations 24,427 1,614 6,634 1,877 31,061 3,491 Corporate debt securities 109,995 3,256 100,977 14,553 210,972 17,809 Total $ 769,045 $ 39,023 $ 562,156 $ 110,492 $ 1,331,201 $ 149,515 As of December 31, 2021 Less than 12 months 12 months or longer Total Fair Gross Unrealized Fair Gross Unrealized Fair Gross Unrealized Value Losses Value Losses Value Losses (In thousands) Securities Available-for-Sale U.S. treasury securities $ — $ — $ — $ — $ — $ — U.S. government agency entities — — 2,337 135 2,337 135 Mortgage-backed securities 527,276 6,659 6,496 755 533,772 7,414 Collateralized mortgage obligations 8,989 417 128 13 9,117 430 Corporate debt securities 103,720 2,122 19,468 532 123,188 2,654 Total $ 639,985 $ 9,198 $ 28,429 $ 1,435 $ 668,414 $ 10,633

Note 5 - Loans (Tables)

Note 5 - Loans (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	As of December 31, 2022 2021 (In thousands) Loans: Commercial loans $ 3,318,778 $ 2,982,399 Real estate construction loans 559,372 611,031 Commercial mortgage loans 8,793,685 8,143,272 Residential mortgage loans 5,252,952 4,182,006 Equity lines 324,548 419,487 Installment and other loans 4,689 4,284 Gross loans 18,254,024 16,342,479 Less: Allowance for loan losses (146,485 ) (136,157 ) Unamortized deferred loan fees (6,641 ) (4,321 ) Total loans, net $ 18,100,898 $ 16,202,001
Schedule of Related Party Transactions [Table Text Block]	December 31, 2022 2021 (In thousands) Balance at beginning of year $ 38,532 $ 51,288 Additional loans made 25,050 29,182 Payment received (30,365 ) (41,938 ) Balance at end of year $ 33,217 $ 38,532
Impaired Financing Receivables [Table Text Block]	For the year ended December 31, 2022 Average Recorded Investment Interest Income Recognized (In thousands) Commercial loans $ 28,109 $ 4 Commercial mortgage loans 28,983 405 Residential mortgage and equity lines 14,251 26 Installment and other loans 28 — Total $ 71,371 $ 435 For the year ended December 31, 2021 Average Recorded Investment Interest Income Recognized (In thousands) Commercial loans $ 21,453 $ — Real estate construction loans 3,805 — Commercial mortgage loans 38,047 1,044 Residential mortgage and equity lines 9,435 30 Total $ 72,740 $ 1,074
Schedule Of Impaired Loans And Related Allowance And Charge Off [Table Text Block]	As of December 31, 2022 Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance: Commercial loans $ 27,341 $ 12,949 $ — Commercial mortgage loans 37,697 32,205 — Residential mortgage and equity lines 9,626 8,978 — Installment and other loans 9 8 — Subtotal $ 74,673 $ 54,140 $ — With allocated allowance: Commercial loans $ 14,643 $ 12,823 $ 3,734 Commercial mortgage loans 1,896 1,891 207 Residential mortgage and equity lines — — — Subtotal $ 16,539 $ 14,714 $ 3,941 Total non-accrual loans $ 91,212 $ 68,854 $ 3,941 As of December 31, 2021 Unpaid Principal Balance Recorded Investment Allowance (In thousands) With no allocated allowance: Commercial loans $ 15,879 $ 11,342 $ — Commercial mortgage loans 24,437 21,209 — Residential mortgage and equity lines 6,020 5,850 — Subtotal $ 46,336 $ 38,401 $ — With allocated allowance: Commercial loans $ 14,294 $ 5,217 $ 894 Commercial mortgage loans 17,930 16,964 3,631 Residential mortgage and equity lines 6,048 5,264 22 Subtotal $ 38,272 $ 27,445 $ 4,547 Total non-accrual loans $ 84,608 $ 65,846 $ 4,547
Financing Receivable, Nonaccrual [Table Text Block]	As of December 31, 2022 2021 2020 (In thousands) Non-accrual portfolio loans $ 68,854 $ 65,846 $ 67,684 Contractual interest due 4,620 4,032 3,093 Interest recognized 435 1,074 1,008 Net interest foregone $ 4,185 $ 2,958 $ 2,085
Financing Receivable, Past Due [Table Text Block]	As of December 31, 2022 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Non-accrual Loans Total Past Due Loans Not Past Due Total Type of Loans: (In thousands) Commercial loans $ 8,192 $ 3,235 $ 10,208 $ 25,772 $ 47,407 $ 3,271,371 $ 3,318,778 Real estate construction loans — — — — — 559,372 559,372 Commercial mortgage loans 25,772 — 1,372 34,096 61,240 8,732,445 8,793,685 Residential mortgage loans and equity lines 47,043 5,685 — 8,978 61,706 5,515,794 5,577,500 Installment and other loans 5 1 — 8 14 4,675 4,689 Total loans $ 81,012 $ 8,921 $ 11,580 $ 68,854 $ 170,367 $ 18,083,657 $ 18,254,024 As of December 31, 2021 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due Non-accrual Loans Total Past Due Loans Not Past Due Total Type of Loans: (In thousands) Commercial loans $ 4,294 $ 9,877 $ 1,439 $ 16,558 $ 32,168 $ 2,950,231 $ 2,982,399 Real estate construction loans — — — — — 611,031 611,031 Commercial mortgage loans 8,389 — — 38,173 46,562 8,096,710 8,143,272 Residential mortgage loans 20,129 3,138 — 11,115 34,382 4,567,111 4,601,493 Installment and other loans — — — — — 4,284 4,284 Total loans $ 32,812 $ 13,015 $ 1,439 $ 65,846 $ 113,112 $ 16,229,367 $ 16,342,479
Schedule Of Troubled Debt Restructurings [Table Text Block]	Loans Modified as TDRs During the Year Ended December 31, 2022 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve (1) Charge-offs (Dollars in thousands) Commercial loans 4 $ 6,115 $ 6,115 $ 427 $ — Commercial mortgage loans 3 3,676 3,669 — — Residential mortgage and equity lines 8 2,189 2,162 — — Total 15 $ 11,980 $ 11,946 $ 427 $ — Loans Modified as TDRs During the Year Ended December 31, 2021 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve Charge-offs (Dollars in thousands) Commercial loans 3 $ 2,150 $ 2,150 $ — $ — Residential mortgage and equity lines 2 3 3 — — Total 5 $ 2,153 $ 2,153 $ — $ — Loans Modified as TDRs During the Year Ended December 31, 2020 No. of Contracts Pre-Modification Outstanding Recorded Investment Post-Modification Outstanding Recorded Investment Specific Reserve Charge-off (Dollars in thousands) Commercial loans 5 $ 5,417 $ 5,417 $ — $ — Total 5 $ 5,417 $ 5,417 $ — $ —
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	December 31, 2022 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 2,588 $ — $ — $ 2,588 Commercial mortgage loans 2,791 — 5,855 8,646 Residential mortgage loans 2,181 445 1,285 3,911 Total accruing TDRs $ 7,560 $ 445 $ 7,140 $ 15,145 December 31, 2021 Accruing TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 3,368 $ — $ — $ 3,368 Commercial mortgage loans 438 5,522 168 6,128 Residential mortgage loans 1,464 249 1,628 3,341 Total accruing TDRs $ 5,270 $ 5,771 $ 1,796 $ 12,837
Non Accrual Troubled Debt Restructurings [Table Text Block]	December 31, 2022 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 3,629 $ — $ — $ 3,629 Commercial mortgage loans 1,098 — — 1,098 Residential mortgage loans 1,621 — — 1,621 Total non-accrual TDRs $ 6,348 $ — $ — $ 6,348 December 31, 2021 Non-accrual TDRs Payment Deferral Rate Reduction Rate Reduction and Payment Deferral Total (In thousands) Commercial loans $ 7,717 $ — $ — $ 7,717 Residential mortgage loans 458 — — 458 Total non-accrual TDRs $ 8,175 $ — $ — $ 8,175
Loan Held for Investment by Loan Portfolio Segments, Internal Risk Ratings and Vintage Year [Table Text Block]	Loans Amortized Cost Basis by Origination Year December 31, 2022 2022 2021 2020 2019 2018 Prior Revolving Loans Revolving Converted to Term Loans Total (In thousands) Commercial loans Pass/Watch $ 488,748 $ 446,647 $ 180,226 $ 119,355 $ 107,896 $ 106,649 $ 1,753,509 $ 6,560 $ 3,209,590 Special Mention 1,212 4,696 2,818 68 308 4,354 41,110 — 54,566 Substandard 25 12,750 342 4,859 2,766 6,985 22,084 133 49,944 Doubtful — — — 1,504 2,185 — 234 — 3,923 Total $ 489,985 $ 464,093 $ 183,386 $ 125,786 $ 113,155 $ 117,988 $ 1,816,937 $ 6,693 $ 3,318,023 YTD period charge-offs $ 96 $ 587 $ 120 $ 71 $ 1,786 $ 360 $ 202 $ — $ 3,222 YTD period recoveries (8 ) — (39 ) — (254 ) (335 ) (1,829 ) — (2,465 ) Net $ 88 $ 587 $ 81 $ 71 $ 1,532 $ 25 $ (1,627 ) $ — $ 757 Real estate construction loans Pass/Watch $ 99,798 $ 264,197 $ 113,312 $ 20,479 $ 3,067 $ — $ — $ — $ 500,853 Special Mention — 360 9,449 11,643 22,945 — — — 44,397 Substandard — — — 1,736 9,309 — — — 11,045 Total $ 99,798 $ 264,557 $ 122,761 $ 33,858 $ 35,321 $ — $ — $ — $ 556,295 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (6 ) — — (6 ) Net $ — $ — $ — $ — $ — $ (6 ) $ — $ — $ (6 ) Commercial mortgage loans Pass/Watch $ 2,087,650 $ 1,728,607 $ 975,953 $ 1,094,505 $ 908,748 $ 1,420,982 $ 178,116 $ — $ 8,394,561 Special Mention 22,150 57,015 25,593 32,119 17,999 63,782 1,600 — 220,258 Substandard 12,320 7,861 14,392 19,972 34,899 81,844 2,631 — 173,919 Total $ 2,122,120 $ 1,793,483 $ 1,015,938 $ 1,146,596 $ 961,646 $ 1,566,608 $ 182,347 $ — $ 8,788,738 YTD period charge-offs $ — $ — $ — $ — $ 2,091 $ — $ — $ — $ 2,091 YTD period recoveries — — — (240 ) — (7 ) (111 ) — (358 ) Net $ — $ — $ — $ (240 ) $ 2,091 $ (7 ) $ (111 ) $ — $ 1,733 Residential mortgage loans Pass/Watch $ 1,228,391 $ 964,799 $ 580,990 $ 600,786 $ 417,565 $ 1,444,320 $ — $ — $ 5,236,851 Special Mention — — 33 — 752 905 — — 1,690 Substandard 206 762 2,028 1,966 1,799 8,785 — — 15,546 Total $ 1,228,597 $ 965,561 $ 583,051 $ 602,752 $ 420,116 $ 1,454,010 $ — $ — $ 5,254,087 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (45 ) — — (45 ) Net $ — $ — $ — $ — $ — $ (45 ) $ — $ — $ (45 ) Equity lines Pass/Watch $ 731 $ — $ — $ — $ — $ — $ 302,825 $ 21,460 $ 325,016 Special Mention 5 — — — — — — — 5 Substandard 12 — — — — — 1,043 220 1,275 Total $ 748 $ — $ — $ — $ — $ — $ 303,868 $ 21,680 $ 326,296 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — (11 ) (16 ) (27 ) Net $ — $ — $ — $ — $ — $ — $ (11 ) $ (16 ) $ (27 ) Installment and other loans Pass/Watch $ 1,792 $ 2,152 $ — $ — $ — $ — $ — $ — $ 3,944 Total $ 1,792 $ 2,152 $ — $ — $ — $ — $ — $ — $ 3,944 YTD period charge-offs $ 115 $ — $ — $ — $ — $ — $ 62 $ — $ 177 YTD period recoveries (2 ) — — — — — (2 ) — (4 ) Net $ 113 $ — $ — $ — $ — $ — $ 60 $ — $ 173 Total loans $ 3,943,040 $ 3,489,846 $ 1,905,136 $ 1,908,992 $ 1,530,238 $ 3,138,606 $ 2,303,152 $ 28,373 $ 18,247,383 Net charge-offs/(recoveries) $ 201 $ 587 $ 81 $ (169 ) $ 3,623 $ (33 ) $ (1,689 ) $ (16 ) $ 2,585 Loans Amortized Cost Basis by Origination Year December 31, 2021 2021 2020 2019 2018 2017 Prior Revolving Loans Revolving Converted to Term Loans Total (In thousands) Commercial loans Pass/Watch $ 606,770 $ 268,756 $ 183,468 $ 142,419 $ 80,701 $ 100,496 $ 1,437,463 $ 7,433 $ 2,827,506 Special Mention 395 780 1,138 1,645 3,157 — 40,761 49 47,925 Substandard 450 5,879 22,513 16,423 14,309 5,221 34,713 5,716 105,224 Doubtful — — — — — — 900 — 900 Total $ 607,615 $ 275,415 $ 207,119 $ 160,487 $ 98,167 $ 105,717 $ 1,513,837 $ 13,198 $ 2,981,555 YTD period charge-offs $ — $ 1,478 $ 507 $ 366 $ — $ 50 $ 17,650 $ — $ 20,051 YTD period recoveries — (1 ) (29 ) (124 ) — (191 ) (1,361 ) — (1,706 ) Net $ — $ 1,477 $ 478 $ 242 $ — $ (141 ) $ 16,289 $ — $ 18,345 Real estate construction loans Pass/Watch $ 199,188 $ 188,782 $ 125,316 $ 24,548 $ — $ — $ — $ — $ 537,834 Special Mention — 23,107 27,672 17,374 — — — — 68,153 Substandard — — 1,919 — — — — — 1,919 Total $ 199,188 $ 211,889 $ 154,907 $ 41,922 $ — $ — $ — $ — $ 607,906 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — (76 ) — — (76 ) Net $ — $ — $ — $ — $ — $ (76 ) $ — $ — $ (76 ) Commercial mortgage loans Pass/Watch $ 1,893,807 $ 1,201,825 $ 1,253,548 $ 1,031,191 $ 727,916 $ 1,313,882 $ 198,869 $ — $ 7,621,038 Special Mention 45,719 59,182 49,796 103,101 61,105 60,448 750 — 380,101 Substandard 1,110 — 13,483 42,803 1,580 76,906 3,297 — 139,179 Total $ 1,940,636 $ 1,261,007 $ 1,316,827 $ 1,177,095 $ 790,601 $ 1,451,236 $ 202,916 $ — $ 8,140,318 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — (240 ) — — (28 ) (111 ) — (379 ) Net $ — $ — $ (240 ) $ — $ — $ (28 ) $ (111 ) $ — $ (379 ) Residential mortgage loans Pass/Watch $ 978,375 $ 622,999 $ 678,775 $ 502,325 $ 453,992 $ 929,846 $ — $ — $ 4,166,312 Special Mention — 46 1,576 1,064 836 438 — — 3,960 Substandard 1,684 147 2,698 2,574 862 5,255 — — 13,220 Total $ 980,059 $ 623,192 $ 683,049 $ 505,963 $ 455,690 $ 935,539 $ — $ — $ 4,183,492 YTD period charge-offs $ — $ — $ — $ — $ 3 $ — $ — $ — $ 3 YTD period recoveries — — — — — (208 ) — — (208 ) Net $ — $ — $ — $ — $ 3 $ (208 ) $ — $ — $ (205 ) Equity lines Pass/Watch $ — $ — $ — $ — $ — $ 5 $ 389,069 $ 30,025 $ 419,099 Substandard — — — — — — 1,230 273 1,503 Total $ — $ — $ — $ — $ — $ 5 $ 390,299 $ 30,298 $ 420,602 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — (10 ) (64 ) (74 ) Net $ — $ — $ — $ — $ — $ — $ (10 ) $ (64 ) $ (74 ) Installment and other loans Pass/Watch $ 4,117 $ 168 $ — $ — $ — $ — $ — $ — $ 4,285 Total $ 4,117 $ 168 $ — $ — $ — $ — $ — $ — $ 4,285 YTD period charge-offs $ — $ — $ — $ — $ — $ — $ — $ — $ — YTD period recoveries — — — — — — — — — Net $ — $ — $ — $ — $ — $ — $ — $ — $ — Total loans $ 3,731,615 $ 2,371,671 $ 2,361,902 $ 1,885,467 $ 1,344,458 $ 2,492,497 $ 2,107,052 $ 43,496 $ 16,338,158 Net charge-offs/(recoveries) $ — $ 1,477 $ 238 $ 242 $ 3 $ (453 ) $ 16,168 $ (64 ) $ 17,611
Financing Receivable, Allowance for Credit Loss [Table Text Block]	Real Estate Commercial Residential Installment Commercial Construction Mortgage Mortgage and Other Loans Loans Loans and Equity Lines Loans Total (In thousands) 2021 Beginning Balance $ 68,742 $ 30,854 $ 49,205 $ 17,737 $ — $ 166,538 Impact of ASU 2016-13 adoption $ (31,466 ) $ (24,307 ) $ 34,993 $ 19,211 $ 9 $ (1,560 ) Allowance for loan losses, January 1, 2021 $ 37,276 $ 6,547 $ 84,198 $ 36,948 $ 9 $ 164,978 Provision/(reversal) for loan losses 24,463 (321 ) (23,401 ) (11,943 ) (8 ) (11,210 ) Charge-offs (20,051 ) — — (3 ) — (20,054 ) Recoveries 1,706 76 284 377 — 2,443 Net (Charge-offs)/Recoveries $ (18,345 ) $ 76 $ 284 $ 374 $ — $ (17,611 ) 2021 Ending Balance $ 43,394 $ 6,302 $ 61,081 $ 25,379 $ 1 $ 136,157 Provision/(reversal) for loan losses 6,798 4,109 9,018 (7,219 ) 207 12,913 Charge-offs (3,222 ) — (2,091 ) — (177 ) (5,490 ) Recoveries 2,465 6 358 72 4 2,905 Net (Charge-offs)/Recoveries $ (757 ) $ 6 $ (1,733 ) $ 72 $ (173 ) $ (2,585 ) 2022 Ending Balance $ 49,435 $ 10,417 $ 68,366 $ 18,232 $ 35 $ 146,485 Allowance for unfunded credit commitments, January 1, 2021 $ 8,038 $ 3,825 $ 35 $ — $ — $ 11,898 Provision/(reversal) for possible credit losses (4,313 ) (450 ) (35 ) — — (4,798 ) Allowance for unfunded credit commitments 2021 Ending Balance $ 3,725 $ 3,375 $ — $ — $ — $ 7,100 Provision/(reversal) for possible credit losses 1,115 515 — — — 1,630 Allowance for unfunded credit commitments 2022 Ending Balance $ 4,840 $ 3,890 $ — $ — $ — $ 8,730

Note 6 - Investments in Affor_2

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Investments in Affordable Housing and Alternative Energy Partnerships [Table Text Block]	As of December 31, 2022 2021 (In thousands) Investments in affordable housing partnerships, net $ 289,920 $ 287,517 Other borrowings for affordable housing limited partnerships $ 22,600 $ 23,145 Investments in affordable housing and alternative energy partnerships, unfunded commitments $ 133,491 $ 107,652 Investments in alternative energy tax credit partnerships, net $ 37,208 $ 11,694
Unfunded Commitments Future Estimated Payments [Table Text Block]	Amount Year Ending December 31, (In thousands) 2023 $ 78,897 2024 $ 33,154 2025 $ 14,076 2026 $ 1,678 2027 $ 1,533 Thereafter $ 4,153 Total unfunded commitments $ 133,491
Usage of Affordable Housing and Other Tax Credits Including Energy Tax Credit [Table Text Block]	As of December 31, 2022 2021 2020 (In thousands) Affordable housing and other tax credits recognized $ 29,524 $ 26,459 $ 23,273 Alternative energy tax credits recognized $ 4,707 $ 6,337 $ 29,706

Note 7 - Premises and Equipme_2

Note 7 - Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Property, Plant and Equipment [Table Text Block]	As of December 31, 2022 2021 (In thousands) Land and land improvements $ 42,566 $ 42,475 Building and building improvements 81,613 81,290 Furniture, fixtures and equipment 65,872 62,138 Leasehold improvement 18,009 17,862 Construction in process 375 2,453 208,435 206,218 Less: Accumulated depreciation 113,659 106,816 Premises and equipment, net $ 94,776 $ 99,402

Note 8 - Goodwill and Other I_2

Note 8 - Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Finite-Lived Intangible Assets [Table Text Block]	December 31, 2022 2021 (In thousands) Gross balance $ 10,562 $ 7,424 Accumulated amortization (4,291 ) (3,317 ) Impairment (918 ) — Net carrying balance $ 5,353 $ 4,107
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Amount (In thousands) 2023 $ 1,001 2024 $ 1,001 2025 $ 946 2026 $ 870 2027 $ 870 thereafter $ 665 Total $ 5,353

Note 9 - Deposits (Tables)

Note 9 - Deposits (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Summary of Deposits [Table Text Block]	As of December 31, 2022 2021 (In thousands) Deposits Non-interest-bearing demand deposits $ 4,168,989 $ 4,492,054 Interest bearing demand deposits 2,509,736 2,522,442 Money market deposits 3,812,724 4,611,579 Savings deposits 1,000,460 915,515 Time deposits 7,013,370 5,517,252 Total deposits $ 18,505,279 $ 18,058,842
Schedule of Maturities for Time Deposits [Table Text Block]	Expected Maturity Date at December 31, 2023 2024 2025 2026 2027 Thereafter Total (In thousands) Time deposits $ 6,926,121 $ 79,376 $ 5,094 $ 591 $ 2,168 $ 20 $ 7,013,370
Summary of Interest Expense on Deposits [Table Text Block]	Year Ended December 31, 2022 2021 2020 (In thousands) Interest bearing demand $ 8,176 $ 2,249 $ 2,816 Money market accounts 39,913 18,241 21,574 Saving accounts 853 769 1,006 Time deposits 56,354 40,542 111,629 Total $ 105,296 $ 61,801 $ 137,025

Note 11 - Capital Resources (Ta

Note 11 - Capital Resources (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Subordinated Borrowing [Table Text Block]	As of December 31, 2022 Principal Not Current Date of Payable/ Issuance Balance of Redeemable Stated Annualized Interest Rate Distribution Trust Name Date Notes Until Maturity Coupon Rate Rate Change Date (Dollars in thousands) Cathay Capital Trust I June 26, $ 20,619 June 30, June 30, 3-month 6.82 % December 29, March 30 2003 2008 2033 LIBOR 2022 June 30 + 3.15% September 30 December 30 Cathay Statutory Trust I September 17, 20,619 September 17, September 17, 3-month 6.53 % December 18, March 17 2003 2008 2033 LIBOR 2022 June 17 + 3.00% September 17 December 17 Cathay Capital Trust II December 30, 12,887 March 30, March 30, 3-month 6.57 % December 29, March 30 2003 2009 2034 LIBOR 2022 June 30 + 2.90% September 30 December 30 Cathay Capital Trust III March 28, 46,392 June 15, June 15, 3-month 4.77 % December 14, March 15 2007 2012 2037 LIBOR 2022 June 15 + 1.48% September 15 December 15 Cathay Capital Trust IV May 31, 18,619 September 6, September 6, 3-month 4.54 % December 5, March 6 2007 2012 2037 LIBOR 2022 June 6 + 1.4% September 6 December 6 Total Junior Subordinated Notes $ 119,136 As of December 31, 2021 Principal Not Current Date of Payable/ Issuance Balance of Redeemable Stated Annualized Interest Rate Distribution Trust Name Date Notes Until Maturity Coupon Rate Rate Change Date (Dollars in thousands) Cathay Capital Trust I June 26, $ 20,619 June 30, June 30, 3-month 3.37 % December 31, March 31 2003 2008 2033 LIBOR 2021 June 30 + 3.15% September 30 December 31 Cathay Statutory Trust I September 17, 20,619 September 17, September 17, 3-month 3.22 % December 17, March 17 2003 2008 2033 LIBOR 2021 June 17 + 3.00% September 17 December 17 Cathay Capital Trust II December 30, 12,887 March 30, March 30, 3-month 3.12 % December 31, March 31 2003 2009 2034 LIBOR 2021 June 30 + 2.90% September 30 December 31 Cathay Capital Trust III March 28, 46,392 June 15, June 15, 3-month 1.68 % December 15, March 15 2007 2012 2037 LIBOR 2021 June 15 + 1.48% September 15 December 15 Cathay Capital Trust IV May 31, 18,619 September 6, September 6, 3-month 1.58 % December 6, March 7 2007 2012 2037 LIBOR 2021 June 6 + 1.4% September 6 December 6 Total Junior Subordinated Notes $ 119,136

Note 12 - Income Taxes (Tables)

Note 12 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 2022 2021 2020 (In thousands) Current: Federal $ 57,029 $ 29,955 $ (2,196 ) State 56,953 44,416 36,787 Total Current $ 113,982 $ 74,371 $ 34,591 Deferred: Federal $ (1,776 ) $ 5,986 $ (3,234 ) State (312 ) 3,182 (6,252 ) Total Deferred $ (2,088 ) $ 9,168 $ (9,486 ) Total income tax expense $ 111,894 $ 83,539 $ 25,105
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	As of December 31, 2022 2021 (In thousands) Deferred Tax Assets Loan loss allowance, due to differences in computation of bad debts $ 47,673 $ 43,895 Accrual for bonuses 2,591 4,935 Non-accrual interest 1,572 1,117 Write-down on equity securities and venture capital investments 1,975 2,000 State tax 6,251 4,691 Unrealized loss on interest rate swaps — 1,394 Unrealized loss on securities available-for-sale, net 40,400 — Tax credits carried forward 9,136 9,136 Net operating loss carried forward 5,916 8,732 Other, net 4,711 3,765 Gross deferred tax assets $ 120,225 $ 79,665 Deferred Tax Liabilities Deferred loan costs $ (10,025 ) $ (9,936 ) Depreciation and amortization (2,856 ) (3,150 ) Unrealized gain on interest rate swaps (1,364 ) — Unrealized gain on securities available-for-sale, net — (3,823 ) OREO Installment Sale — (1,273 ) Dividends on Federal Home Loan Bank common stock (981 ) (978 ) Other, net (3,506 ) (2,168 ) Gross deferred tax liabilities $ (18,732 ) $ (21,328 ) Net deferred tax assets $ 101,493 $ 58,337
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 2022 2021 2020 (Dollars in thousands) Tax provision at Federal statutory rate $ 99,233 21.0 % $ 80,187 21.0 % $ 53,333 21.0 % State income taxes, net of Federal income tax benefit 44,837 9.5 37,602 9.8 23,602 9.3 Excess deduction for stock option and RSUs (140 ) — (20 ) — 264 0.1 Low income housing and other tax credits (34,231 ) (7.2 ) (32,795 ) (8.6 ) (52,979 ) (20.8 ) Other, net 2,195 0.4 (1,435 ) (0.3 ) 885 0.3 Total income tax expense $ 111,894 23.7 % $ 83,539 21.9 % $ 25,105 9.9 %

Note 13 - Stockholders' Equit_2

Note 13 - Stockholders' Equity and Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	2022 2021 Pre-tax Tax expense/ (benefit) Net-of-tax Pre-tax Tax expense/ (benefit) Net-of-tax Beginning balance, loss, net of tax (In thousands) Securities available-for-sale $ 211 $ 12,200 Cash flow hedge derivatives (3,276 ) (6,890 ) Total $ (3,065 ) $ 5,310 Net unrealized gains/(losses) arising during the period Securities available-for-sale $ (149,124 ) $ (44,081 ) $ (105,043 ) $ (16,167 ) $ (4,779 ) $ (11,388 ) Cash flow hedge derivatives 10,864 3,211 7,653 5,131 1,517 3,614 Total (138,260 ) (40,870 ) (97,390 ) (11,036 ) (3,262 ) (7,774 ) Reclassification adjustment for net gains in net income Securities available-for-sale — — — (853 ) (252 ) (601 ) Cash flow hedge derivatives (2,612 ) (772 ) (1,840 ) — — — Total (2,612 ) (772 ) (1,840 ) (853 ) (252 ) (601 ) Total other comprehensive income/(loss) Securities available-for-sale (149,124 ) (44,081 ) (105,043 ) (17,020 ) (5,031 ) (11,989 ) Cash flow hedge derivatives 8,252 2,439 5,813 5,131 1,517 3,614 Total $ (140,872 ) $ (41,642 ) $ (99,230 ) $ (11,889 ) $ (3,514 ) $ (8,375 ) Ending balance, gain/(loss), net of tax Securities available-for-sale $ (104,832 ) $ 211 Cash flow hedge derivatives 2,537 (3,276 ) Total $ (102,295 ) $ (3,065 )
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year Ended December 31, 2022 2021 2020 Per Per Per Income Shares Share Income Shares Share Income Shares Share (Numerator) (Denominator) Amount (Numerator) (Denominator) Amount (Numerator) (Denominator) Amount (In thousands, except shares and per share data) Net income $ 360,642 $ 298,304 $ 228,860 Basic EPS, income $ 360,642 74,337,265 $ 4.85 $ 298,304 78,268,369 $ 3.81 $ 228,860 79,584,560 $ 2.88 Effect of dilutive stock options and RSU 327,470 302,269 193,287 Diluted EPS, income $ 360,642 74,664,735 $ 4.83 $ 298,304 78,570,638 $ 3.80 $ 228,860 79,777,847 $ 2.87

Note 14 - Commitments and Con_2

Note 14 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Fair Value, off-Balance-Sheet Risks [Table Text Block]	As of December 31, 2022 2021 (In thousands) Commitments to extend credit $ 3,630,304 $ 3,297,362 Standby letters of credit 315,821 266,490 Commercial letters of credit 29,416 16,652 Total $ 3,975,541 $ 3,580,504

Note 15 - Leases (Tables)

Note 15 - Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Operating Lease, Assets and Liabilities, Weighted Average Remaining Terms and Discount Rate [Table Text Block]	December 31, 2022 December 31, 2021 (Dollars in millions) Operating Leases: ROU assets $ 29.6 $ 27.8 Lease liabilities $ 32.5 $ 30.7 Weighted-average remaining lease term (in years) 4.0 4.4 Weighted-average discount rate 2.90 % 2.61 % Operating cash flows from operating leases $ 11.4 $ 9.9 ROU assets obtained in exchange for lease obligations $ 5.9 $ 6.0
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	As of December 31, 2022 Operating Leases (In thousands) 2023 $ 10,833 2024 $ 8,415 2025 $ 5,702 2026 $ 4,587 2027 $ 2,991 Thereafter $ 1,955 Total lease payments $ 34,483 Less amount of payment representing interest (1,965 ) Total present value of lease payments $ 32,518

Note 16 - Financial Derivativ_2

Note 16 - Financial Derivatives (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	December 31, 2022 December 31, 2021 Cash flow swap hedges: ($ in thousands) Notional $ — $ 119,136 Weighted average fixed rate-pay 0.00 % 2.61 % Weighted average variable rate-receive 0.00 % 0.16 % Loss, net of taxes (1) $ — $ (3,276 ) Year ended December 31, 2022 December 31, 2021 Periodic net settlement of swaps (2) $ 772 $ 2,949
Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	December 31, 2022 December 31, 2021 Fair value swap hedges: ($ in thousands) Notional $ 874,034 $ 729,280 Weighted average fixed rate-pay 2.12 % 2.65 % Weighted average variable rate spread 0.68 % 1.31 % Weighted average variable rate-receive 2.61 % 1.43 % Net gain/(loss) (1) $ 38,589 $ (1,013 ) Year ended December 31, 2022 December 31, 2021 Periodic net settlement of SWAPs (2) $ 3,107 $ (9,345 )
Derivatives Not Designated as Hedging Instruments [Table Text Block]	December 31, 2022 December 31, 2021 Derivative financial instruments not designated as hedging instruments: (In thousands) Notional amounts: Option contracts $ — $ 676 Forward, and swap contracts with positive fair value $ 72,996 $ 181,997 Forward, and swap contracts with negative fair value $ 170,213 $ 51,782 Fair value: Option contracts $ — $ 3 Forward, and swap contracts with positive fair value $ 448 $ 1,113 Forward, and swap contracts with negative fair value $ (942 ) $ (327 )

Note 17 - Fair Value Measurem_2

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	As of December 31, 2022 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value Assets (In thousands) Securities available-for-sale U.S. Treasury securities $ 240,500 $ — $ — $ 240,500 U.S. government agency entities — 63,610 — 63,610 U.S. government sponsored entities — 30,000 — 30,000 Mortgage-backed securities — 867,094 — 867,094 Collateralized mortgage obligations — 31,061 — 31,061 Corporate debt securities — 241,083 — 241,083 Total securities available-for-sale 240,500 1,232,848 — 1,473,348 Equity securities Mutual funds 5,509 — — 5,509 Preferred stock of government sponsored entities 1,289 — — 1,289 Other equity securities 15,360 — — 15,360 Total equity securities 22,158 — — 22,158 Warrants — — 50 50 Interest rate swaps — 44,443 — 44,443 Foreign exchange contracts — 448 — 448 Total assets $ 262,658 $ 1,277,739 $ 50 $ 1,540,447 Liabilities Interest rate swaps $ — $ 51,864 $ — $ 51,864 Foreign exchange contracts — 942 — 942 Total liabilities $ — $ 52,806 $ — $ 52,806 As of December 31, 2021 Fair Value Measurements Using Total at Level 1 Level 2 Level 3 Fair Value Assets (In thousands) Securities available-for-sale U.S. Treasury securities $ — $ — $ — $ — U.S. government agency entities — 87,509 — 87,509 Mortgage-backed securities — 888,665 — 888,665 Collateralized mortgage obligations — 9,117 — 9,117 Corporate debt securities — 142,018 — 142,018 Total securities available-for-sale — 1,127,309 — 1,127,309 Equity securities Mutual funds 6,230 — — 6,230 Preferred stock of government sponsored entities 1,811 — — 1,811 Other equity securities 14,278 — — 14,278 Total equity securities 22,319 — — 22,319 Warrants — — 23 23 Interest rate swaps — 10,090 — 10,090 Foreign exchange contracts — 1,113 — 1,113 Total assets $ 22,319 $ 1,138,512 $ 23 $ 1,160,854 Liabilities Interest rate swaps $ — $ 12,642 $ — $ 12,642 Foreign exchange contracts — 327 — 327 Total liabilities $ — $ 12,969 $ — $ 12,969
Fair Value Measurements, Nonrecurring [Table Text Block]	As of December 31, 2022 Total Losses Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2022 December 31, 2021 Assets (In thousands) Non-accrual loans by type: Commercial loans $ — $ — $ 12,950 $ 12,950 $ 1,786 $ 1,012 Commercial mortgage loans — — 32,205 32,205 2,091 — Residential mortgage and equity lines — — 8,978 8,978 — — Installment and other loans — — 8 8 — — Total non-accrual loans — — 54,141 54,141 3,877 1,012 Other real estate owned (1) — — 4,328 4,328 — 17 Investments in venture capital — — 689 689 268 143 Total assets $ — $ — $ 59,158 $ 59,158 $ 4,145 $ 1,172 As of December 31, 2021 Total Losses/(Gains) Fair Value Measurements Using Total at For the Twelve Months Ended Level 1 Level 2 Level 3 Fair Value December 31, 2021 December 31, 2020 Assets (In thousands) Non-accrual loans by type: Commercial loans $ — $ — $ 4,327 $ 4,327 $ 1,012 $ 7,012 Commercial mortgage loans — — 13,335 13,335 — — Residential mortgage and equity lines — — 5,243 5,243 — — Total non-accrual loans — — 22,905 22,905 1,012 7,012 Other real estate owned (1) — — 4,589 4,589 17 717 Investments in venture capital — — 952 952 143 107 Total assets $ — $ — $ 28,446 $ 28,446 $ 1,172 $ 7,836
Fair Value, by Balance Sheet Grouping [Table Text Block]	December 31, 2022 December 31, 2021 Carrying Carrying Amount Fair Value Amount Fair Value (In thousands) Financial Assets Cash and due from banks $ 195,440 $ 195,440 $ 134,141 $ 134,141 Short-term investments 966,962 966,962 2,315,563 2,315,563 Securities available-for-sale 1,473,348 1,473,348 1,127,309 1,127,309 Loans, net 18,100,898 17,944,588 16,202,001 16,499,869 Equity securities 22,158 22,158 22,319 22,319 Investment in Federal Home Loan Bank stock 17,250 17,250 17,250 17,250 Warrants 50 50 23 23 Notional Notional Amount Fair Value Amount Fair Value Foreign exchange contracts $ 72,996 $ 448 $ 181,997 $ 1,113 Interest rate swaps 817,615 44,443 904,635 10,090 Financial Liabilities Carrying Carrying Amount Fair Value Amount Fair Value Deposits $ 18,505,279 $ 18,572,387 $ 18,058,842 $ 18,051,720 Advances from Federal Home Loan Bank 485,000 482,737 20,000 21,279 Other borrowings 22,600 18,385 23,145 18,945 Long-term debt 119,136 68,231 119,136 62,274 Notional Notional Amount Fair Value Amount Fair Value Option contracts $ — $ — $ 676 $ 3 Foreign exchange contracts 170,213 942 51,782 327 Interest rate swaps 595,426 51,864 872,400 12,642 Notional Notional Amount Fair Value Amount Fair Value Off-Balance Sheet Financial Instruments Commitments to extend credit $ 3,630,304 $ (14,797 ) $ 3,297,362 $ (12,594 ) Standby letters of credit 315,821 (2,738 ) 266,490 (2,640 ) Other letters of credit 29,416 (33 ) 16,652 (13 ) Bill of lading guarantees — — — —
Schedule Of Fair Value Of Financial Instruments [Table Text Block]	As of December 31, 2022 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 195,440 $ 195,440 $ — $ — Short-term investments 966,962 966,962 — — Securities available-for-sale 1,473,348 240,500 1,232,848 — Loans, net 17,944,588 — — 17,944,588 Equity securities 22,158 22,158 — — Investment in Federal Home Loan Bank stock 17,250 — 17,250 — Warrants 50 — — 50 Financial Liabilities Deposits 18,572,387 — — 18,572,387 Advances from Federal Home Loan Bank 482,737 — 482,737 — Other borrowings 18,385 — — 18,385 Long-term debt 68,231 — 68,231 — As of December 31, 2021 Estimated Fair Value Measurements Level 1 Level 2 Level 3 (In thousands) Financial Assets Cash and due from banks $ 134,141 $ 134,141 $ — $ — Short-term investments 2,315,563 2,315,563 — — Securities available-for-sale 1,127,309 — 1,127,309 — Loans, net 16,499,869 — — 16,499,869 Equity securities 22,319 22,319 — — Investment in Federal Home Loan Bank stock 17,250 — 17,250 — Warrants 23 — — 23 Financial Liabilities Deposits 18,051,720 — — 18,051,720 Advances from Federal Home Loan Bank 21,279 — 21,279 — Other borrowings 18,945 — — 18,945 Long-term debt 62,274 — 62,274 —

Note 18 - Revenue from Contra_2

Note 18 - Revenue from Contracts with Customers (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Disaggregation of Revenue [Table Text Block]	Year Ended December 31, 2022 2021 2020 (In thousands) Non-interest income, in-scope: Fees and service charges on deposit accounts $ 9,394 $ 8,618 $ 7,965 Wealth management fees 16,436 15,056 10,529 Other service fees (1) 16,349 15,400 13,742 Total in-scope non-interest income 42,179 39,074 32,236 Noninterest income, not in-scope (2) 14,635 15,529 10,584 Total non-interest income $ 56,814 $ 54,603 $ 42,820

Note 20 - Equity Incentive Pl_2

Note 20 - Equity Incentive Plans (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]	Time-Based RSUs Performance-Based RSUs Weighted-Average Weighted-Average Grant Date Grant Date Shares Fair Value Shares Fair Value Balance at December 31, 2019 273,200 35.90 297,744 32.65 Granted 110,495 21.79 212,369 22.96 Vested (80,654 ) 25.34 (193,240 ) 21.68 Forfeited (10,371 ) 39.04 (14,071 ) 39.08 Balance at December 31, 2020 292,670 33.37 302,802 32.55 Granted 63,467 41.18 113,764 37.13 Vested (96,869 ) 41.72 (76,292 ) 41.69 Forfeited (23,324 ) 29.92 (7,768 ) 40.85 Balance at December 31, 2021 235,944 32.38 332,506 31.82 Granted 67,652 46.69 112,393 40.24 Vested (89,386 ) 40.92 (81,934 ) 44.52 Forfeited (12,151 ) 34.07 — — Balance at December 31, 2022 202,059 33.29 362,965 31.56

Note 21 - Condensed Financial_2

Note 21 - Condensed Financial Information of Cathay General Bancorp (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Condensed Balance Sheet [Table Text Block]	As of December 31, 2022 2021 (In thousands, except share and per share data) Assets Cash $ 14,902 $ 19,629 Cash pledged as margin for interest rate swaps — 1,071 Short-term certificates of deposit 334 333 Equity securities 16,360 15,627 Investment in Cathay Bank subsidiary 2,566,266 2,530,850 Investment in non-bank subsidiary 764 807 Other assets 4,385 4,691 Total assets $ 2,603,011 $ 2,573,008 Liabilities Junior subordinated debt $ 119,136 $ 119,136 Other liabilities 9,835 7,621 Total liabilities 128,971 126,757 Commitments and contingencies — — Stockholders' equity Common stock, $ 0.01 100,000,000 91,090,614 72,742,151 90,871,860 75,750,862 911 909 Additional paid-in-capital 981,119 972,474 Accumulated other comprehensive loss, net (102,295 ) (3,065 ) Retained earnings 2,244,856 1,985,168 Treasury stock, at cost ( 18,348,463 15,120,998 (650,551 ) (509,235 ) Total equity 2,474,040 2,446,251 Total liabilities and equity $ 2,603,011 $ 2,573,008
Condensed Income Statement [Table Text Block]	Year Ended December 31, 2022 2021 2020 (In thousands) Cash dividends from Cathay Bank $ 232,773 $ 230,000 $ 146,000 Interest income 30 36 49 Interest expense 5,560 5,773 5,906 Non-interest Income/(loss) 1,018 3,117 (435 ) Non-interest expense 3,937 3,224 4,846 Income before income tax expense 224,324 224,156 134,862 Income tax expense (2,885 ) (1,810 ) (3,692 ) Income before undistributed earnings of subsidiaries 227,209 225,966 138,554 Undistributed earnings of subsidiary 133,433 72,338 90,306 Net income $ 360,642 $ 298,304 $ 228,860
Condensed Cash Flow Statement [Table Text Block]	Year Ended December 31, 2022 2021 2020 (In thousands) Cash flows from Operating Activities Net income $ 360,642 $ 298,304 $ 228,860 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed earnings of subsidiaries (133,433 ) (72,338 ) (90,306 ) Loss/(gain) on equity securities (733 ) (122 ) 641 Write-downs on venture capital and other investments 268 73 107 (Gain)/loss in fair value of warrants (27 ) — 18 Stock issued to directors as compensation 849 850 800 Net change in accrued interest receivable and other assets (434 ) 1,918 (1,182 ) Net change in other liabilities 8,532 4,934 (9,853 ) Net cash provided by operating activities 235,664 233,619 129,085 Cash flows from Investment Activities Proceeds from liquidation of subsidiary — — 2,399 Proceeds from sale of equity securities — — 3,112 Venture capital and other investments (5 ) 357 116 Net cash (used)/provided by investment activities (5 ) 357 5,627 Cash flows from Financing Activities Repayment of long-term debt — — (7,644 ) Cash dividends paid (100,955 ) (99,322 ) (98,688 ) Proceeds from shares issued under the Dividend Reinvestment Plan 3,719 3,563 9,777 Taxes paid related to net share settlement of RSUs (2,905 ) (2,632 ) (1,911 ) Purchase of treasury stock (141,316 ) (167,104 ) (23,593 ) Net cash used in financing activities (241,457 ) (265,495 ) (122,059 ) Increase/(decrease) in cash, cash equivalents and restricted cash (5,798 ) (31,519 ) 12,653 Cash, cash equivalents, and restricted cash, beginning of the year 20,700 52,219 39,566 Cash, cash equivalents, and restricted cash, end of the period $ 14,902 $ 20,700 $ 52,219

Note 23 - Regulatory Matters (T

Note 23 - Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	Actual Minimum Capital Required - Basel III Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2022 (In thousands) Common Equity Tier 1 to Risk-Weighted Assets Cathay General Bancorp $ 2,182,066 12.21 $ 1,250,914 7.00 $ 1,161,563 6.50 Cathay Bank 2,276,830 12.75 1,250,461 7.00 1,161,142 6.50 Tier 1 Capital to Risk-Weighted Assets Cathay General Bancorp 2,182,066 12.21 1,518,967 8.50 1,429,616 8.00 Cathay Bank 2,276,830 12.75 1,518,417 8.50 1,429,098 8.00 Total Capital to Risk-Weighted Assets Cathay General Bancorp 2,452,781 13.73 1,876,371 10.50 1,787,020 10.00 Cathay Bank 2,432,045 13.61 1,875,691 10.50 1,786,373 10.00 Leverage Ratio Cathay General Bancorp 2,182,066 10.08 865,470 4.00 1,081,838 5.00 Cathay Bank 2,276,830 10.53 864,918 4.00 1,081,148 5.00 Actual Minimum Capital Required - Basel III Required to be Considered Well Capitalized Capital Amount Ratio Capital Amount Ratio Capital Amount Ratio December 31, 2021 (In thousands) Common Equity Tier 1 to Risk-Weighted Assets Cathay General Bancorp $ 2,056,601 12.80 $ 1,124,381 7.00 $ 1,044,068 6.50 Cathay Bank 2,137,925 13.32 1,123,721 7.00 1,043,455 6.50 Tier 1 Capital to Risk-Weighted Assets Cathay General Bancorp 2,056,601 12.80 1,365,320 8.50 1,285,007 8.00 Cathay Bank 2,137,925 13.32 1,364,519 8.50 1,284,253 8.00 Total Capital to Risk-Weighted Assets Cathay General Bancorp 2,315,358 14.41 1,686,572 10.50 1,606,259 10.00 Cathay Bank 2,281,182 14.21 1,685,582 10.50 1,605,316 10.00 Leverage Ratio Cathay General Bancorp 2,056,601 10.40 791,226 4.00 989,033 5.00 Cathay Bank 2,137,925 10.82 790,430 4.00 988,037 5.00

Note 24 - Balance Sheet Offse_2

Note 24 - Balance Sheet Offsetting (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]	Gross Amounts Not Offset in the Balance Sheet Gross Amounts Recognized Gross Amounts Offset in the Balance Sheet Net Amounts Presented in the Balance Sheet Financial Instruments Collateral Posted Net Amount December 31, 2022 (In thousands) Assets: Derivatives $ 90,451 $ 46,008 $ 44,443 $ — $ 42,930 $ 1,513 Liabilities: Derivatives $ 51,864 $ — $ 51,864 $ — $ — $ 51,864 December 31, 2021 Assets: Derivatives $ 10,090 $ — $ 10,090 $ — $ — $ 10,090 Liabilities: Derivatives $ 15,748 $ (3,106 ) $ 12,642 $ — $ — $ 12,642

Note 1 - Summary of Significa_3

Note 1 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020
Number Of Limited Partnerships In Housing Investments			10
Percentage of Subsidiaries Common Securities Owned by Parent Company			100%
Gross Loans Comprised of Commercial Mortgage Loans Percentage	48.20%
Residential Mortgages Properties Percentage	28.80%
Gross Loans Comprised of Commercial Loans Percentage	18.20%
Federal Home Loan Bank Stock | $	$ 17,250	$ 17,250
Federal Home Loan Bank Stock Shares (in shares) | shares	172,500
Minimum Stock Requirement on Outstanding Federal Home Loan Bank Borrowings Shares (in shares) | shares	150,000
Variable Interest Entity, Primary Beneficiary, Number of Entities	10
Goodwill, Impairment Loss | $	$ 0	$ 0
Number of Reportable Segments	1
California [Member]
Residential Mortgages Properties Percentage	47.30%

Note 1 - Summary of Significa_4

Note 1 - Summary of Significant Accounting Policies - Estimated Useful Lives of Assets (Details)	12 Months Ended
	Dec. 31, 2022
Minimum [Member] | Building [Member]
Assets, estimated useful life (Year)	15 years
Minimum [Member] | Building Improvements [Member]
Assets, estimated useful life (Year)	5 years
Minimum [Member] | Furniture Fixtures and Equipment [Member]
Assets, estimated useful life (Year)	3 years
Maximum [Member] | Building [Member]
Assets, estimated useful life (Year)	45 years
Maximum [Member] | Building Improvements [Member]
Assets, estimated useful life (Year)	20 years
Maximum [Member] | Furniture Fixtures and Equipment [Member]
Assets, estimated useful life (Year)	25 years

Note 2 - Business Combination_2

Note 2 - Business Combinations (Details Textual) $ in Thousands	Feb. 07, 2022 USD ($)
HSBC Bank USA [Member]
Number Of Branch Locations	10
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financing Receivable	$ 646,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposit Liabilities	$ 575,163

Note 2 - Business Combination_3

Note 2 - Business Combinations - Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	Feb. 07, 2022	Dec. 31, 2022	Dec. 31, 2021
Goodwill		$ 375,696	$ 372,189
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member]
Cash and cash equivalents	$ 473
Loans	641,839
Right-of-use assets - operating leases	6,453
Core deposit intangible	3,138
Other	561
Total assets	652,464
Deposits	575,163
Lease liabilities	6,453
Total liabilities assumed	581,616
Net assets acquired	70,848
Total cash paid at closing	74,355
Goodwill	$ 3,507

Note 3 - Cash, Cash Equivalen_2

Note 3 - Cash, Cash Equivalents and Restricted Cash (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022
Average Excess Balances Maintained With Federal Reserve Bank	$ 1,240,000	$ 1,610,000
Margin Deposit Assets	88,900	24,300
Restricted Cash, Total	25,400	690
Bank [Member]
Restricted Cash, Total	$ 8,200	$ 5,900	$ 0

Note 4 - Investment Securitie_2

Note 4 - Investment Securities (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Proceeds from Sale of Debt Securities, Available-for-Sale	$ 0	$ 21,102	$ 117,249
Debt Securities, Available-for-Sale, Realized Gain	$ 101	853	1,700
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	195
Pledged Investment Securities	$ 145,700	30,500
Equity Securities, FV-NI, Current	22,158	22,319
Equity Securities, Net Realized Loss From Decrease in Fair Value	$ 291	$ 1,400	$ 1,100
Collateralized Mortgage-Backed Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	159	70
Corporate Debt Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	22	12
US Treasury Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	6
Collateralized Mortgage Obligations [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	5	3
US Government Corporations and Agencies Securities [Member]
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions	3	3

Note 4 - Investment Securitie_3

Note 4 - Investment Securities - Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Investment securities available for sale, amortized cost	$ 1,622,173	$ 1,126,867
Investment securities available for sale, gross unrealized gains	690	11,075
Investment securities available for sale, gross unrealized losses	149,515	10,633
Securities available-for-sale	1,473,348	1,127,309
US Treasury Securities [Member]
Investment securities available for sale, amortized cost	241,611	0
Investment securities available for sale, gross unrealized gains	0	0
Investment securities available for sale, gross unrealized losses	1,111	0
Securities available-for-sale	240,500	0
US Government Corporations and Agencies Securities [Member]
Investment securities available for sale, amortized cost	63,347	86,475
Investment securities available for sale, gross unrealized gains	384	1,169
Investment securities available for sale, gross unrealized losses	121	135
Securities available-for-sale	63,610	87,509
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale, amortized cost	30,000
Investment securities available for sale, gross unrealized gains	0
Investment securities available for sale, gross unrealized losses	0
Securities available-for-sale	30,000
Collateralized Mortgage-Backed Securities [Member]
Investment securities available for sale, amortized cost	993,883	886,614
Investment securities available for sale, gross unrealized gains	194	9,465
Investment securities available for sale, gross unrealized losses	126,983	7,414
Securities available-for-sale	867,094	888,665
Collateralized Mortgage Obligations [Member]
Investment securities available for sale, amortized cost	34,552	9,547
Investment securities available for sale, gross unrealized gains	0	0
Investment securities available for sale, gross unrealized losses	3,491	430
Securities available-for-sale	31,061	9,117
Corporate Debt Securities [Member]
Investment securities available for sale, amortized cost	258,780	144,231
Investment securities available for sale, gross unrealized gains	112	441
Investment securities available for sale, gross unrealized losses	17,809	2,654
Securities available-for-sale	$ 241,083	$ 142,018

Note 4 - Investment Securitie_4

Note 4 - Investment Securities - Investments by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Due in one year or less, Amortized Cost	$ 311,603
Due in one year or less, Fair Value	310,050
Due after one year through five years, Amortized Cost	213,395
Due after one year through five years, Fair Value	196,616
Due after five years through ten years, Amortized Cost	168,767
Due after five years through ten years, Fair Value	159,448
Due after ten years, Amortized Cost	928,408
Due after ten years, Fair Value	807,234
Total, Amortized Cost	1,622,173	$ 1,126,867
Total, Fair Value	$ 1,473,348	$ 1,127,309

Note 4 - Investment Securitie_5

Note 4 - Investment Securities - Temporarily Impaired Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Temporarily impaired securities, less than 12 months, fair value	$ 769,045	$ 639,985
Temporarily impaired securities, less than 12 months, unrealized losses	39,023	9,198
Temporarily impaired securities, 12 months or longer, fair value	562,156	28,429
Temporarily impaired securities, 12 months or longer, unrealized losses	110,492	1,435
Temporarily impaired securities, total fair value	1,331,201	668,414
Temporarily impaired securities, total unrealized losses	149,515	10,633
US Treasury Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	240,500	0
Temporarily impaired securities, less than 12 months, unrealized losses	1,111	0
Temporarily impaired securities, 12 months or longer, fair value	0	0
Temporarily impaired securities, 12 months or longer, unrealized losses	0	0
Temporarily impaired securities, total fair value	240,500	0
Temporarily impaired securities, total unrealized losses	1,111	0
US Government Corporations and Agencies Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	0	0
Temporarily impaired securities, less than 12 months, unrealized losses	0	0
Temporarily impaired securities, 12 months or longer, fair value	1,806	2,337
Temporarily impaired securities, 12 months or longer, unrealized losses	121	135
Temporarily impaired securities, total fair value	1,806	2,337
Temporarily impaired securities, total unrealized losses	121	135
Collateralized Mortgage-Backed Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	394,123	527,276
Temporarily impaired securities, less than 12 months, unrealized losses	33,042	6,659
Temporarily impaired securities, 12 months or longer, fair value	452,739	6,496
Temporarily impaired securities, 12 months or longer, unrealized losses	93,941	755
Temporarily impaired securities, total fair value	846,862	533,772
Temporarily impaired securities, total unrealized losses	126,983	7,414
Collateralized Mortgage Obligations [Member]
Temporarily impaired securities, less than 12 months, fair value	24,427	8,989
Temporarily impaired securities, less than 12 months, unrealized losses	1,614	417
Temporarily impaired securities, 12 months or longer, fair value	6,634	128
Temporarily impaired securities, 12 months or longer, unrealized losses	1,877	13
Temporarily impaired securities, total fair value	31,061	9,117
Temporarily impaired securities, total unrealized losses	3,491	430
Corporate Debt Securities [Member]
Temporarily impaired securities, less than 12 months, fair value	109,995	103,720
Temporarily impaired securities, less than 12 months, unrealized losses	3,256	2,122
Temporarily impaired securities, 12 months or longer, fair value	100,977	19,468
Temporarily impaired securities, 12 months or longer, unrealized losses	14,553	532
Temporarily impaired securities, total fair value	210,972	123,188
Temporarily impaired securities, total unrealized losses	$ 17,809	$ 2,654

Note 5 - Loans (Details Textual

Note 5 - Loans (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Asset, Total	$ 181,400,000	$ 141,500,000
Impaired Financing Receivable, Recorded Investment	68,854,000	65,846,000
Impaired Financing Receivable, Average Recorded Investment	71,371,000	72,740,000
Impaired Financing Receivable, Interest Income, Accrual Method	$ 435,000	$ 1,074,000	$ 1,000,000
Percentage Of Charge Off To Contractual Balances For Impaired Loans	14.10%	10.70%
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve	$ 427,000	$ 0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	0
Financing Receivable, Troubled Debt Restructuring, Commitment to Lend	$ 0
Minimum [Member]
Period Loan Is In Payment Default (Day)	60 days
Maximum [Member]
Period Loan Is In Payment Default (Day)	90 days
Nonaccrual Loans [Member]
Impaired Financing Receivable, Recorded Investment	$ 68,900,000	65,800,000
Accruing Troubled Debt Restructuring [Member]
Financing Receivable, Troubled Debt Restructuring	15,100,000	12,800,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve	0	7,000
Non-accruing Troubled Debt Restructuring [Member]
Financing Receivable, Troubled Debt Restructuring	6,300,000	8,200,000
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve	427,000	3,000
Residential Portfolio Segment [Member]
Servicing Asset, Total	80,200,000	92,100,000
Repossessed Assets, Total	456,000	2,000,000
Commercial Real Estate Portfolio Segment [Member]
Servicing Asset, Total	51,600,000	17,000,000
Impaired Financing Receivable, Average Recorded Investment	28,983,000	38,047,000
Impaired Financing Receivable, Interest Income, Accrual Method	405,000	1,044,000
Commercial Construction Loans [Member]
Servicing Asset, Total	2,500,000	30,100,000
Commercial Portfolio Segment [Member]
Servicing Asset, Total	47,100,000	2,300,000
Impaired Financing Receivable, Average Recorded Investment	28,109,000	21,453,000
Impaired Financing Receivable, Interest Income, Accrual Method	4,000	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Specific Reserve	427,000	0	$ 0
Real Estate Loan [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	13,070,000,000	11,540,000,000
Commercial Loans [Member]
Loans Pledged with Federal Reserve Bank	$ 583,000	$ 773,000,000

Note 5 - Loans - Components of

Note 5 - Loans - Components of Loans in Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans	$ 18,254,024	$ 16,342,479
Less: Allowance for loan losses	(146,485)	(136,157)	$ (166,538)
Unamortized deferred loan fees, net	(6,641)	(4,321)
Loans, net	18,100,898	16,202,001
Commercial Portfolio Segment [Member]
Loans	3,318,778	2,982,399
Less: Allowance for loan losses	(49,435)	(43,394)	(68,742)
Real Estate Construction Portfolio Segment [Member]
Loans	559,372	611,031
Less: Allowance for loan losses	(10,417)	(6,302)	(30,854)
Commercial Real Estate Portfolio Segment [Member]
Loans	8,793,685	8,143,272
Less: Allowance for loan losses	(68,366)	(61,081)	(49,205)
Residential Portfolio Segment [Member]
Loans	5,252,952	4,182,006
Equity Lines Portfolio Segment [Member]
Loans	324,548	419,487
Installment and Other Loans [Member ]
Loans	4,689	4,284
Less: Allowance for loan losses	$ (35)	$ (1)	$ 0

Note 5 - Loans - Loans to Relat

Note 5 - Loans - Loans to Related Parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Balance at beginning of year	$ 38,532	$ 51,288
Additional loans made	25,050	29,182
Payment received	(30,365)	(41,938)
Balance at end of year	$ 33,217	$ 38,532

Note 5 - Loans - Average Balanc

Note 5 - Loans - Average Balance and Interest Income Recognized Related to Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Average Recorded Investment	$ 71,371	$ 72,740
Interest Income Recognized	435	1,074	$ 1,000
Commercial Portfolio Segment [Member]
Average Recorded Investment	28,109	21,453
Interest Income Recognized	4	0
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	28,983	38,047
Interest Income Recognized	405	1,044
Real Estate Construction Portfolio Segment [Member]
Average Recorded Investment		3,805
Interest Income Recognized		0
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Average Recorded Investment	14,251	9,435
Interest Income Recognized	26	$ 30
Installment and Other Loans [Member ]
Average Recorded Investment	28
Interest Income Recognized	$ 0

Note 5 - Loans - Impaired Loans

Note 5 - Loans - Impaired Loans and Related Allowance for Credit Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loans with no related allowance, unpaid principal balance	$ 74,673	$ 46,336
Loans with no related allowance, recorded investment	54,140	38,401
Loans with related allowance, unpaid principal balance	16,539	38,272
Loans with related allowance, recorded investment	14,714	27,445
Allowance	3,941	4,547
Unpaid principal balance	91,212	84,608
Recorded investment	68,854	65,846
Commercial Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	27,341	15,879
Loans with no related allowance, recorded investment	12,949	11,342
Loans with related allowance, unpaid principal balance	14,643	14,294
Loans with related allowance, recorded investment	12,823	5,217
Allowance	3,734	894
Commercial Real Estate Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	37,697	24,437
Loans with no related allowance, recorded investment	32,205	21,209
Loans with related allowance, unpaid principal balance	1,896	17,930
Loans with related allowance, recorded investment	1,891	16,964
Allowance	207	3,631
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans with no related allowance, unpaid principal balance	9,626	6,020
Loans with no related allowance, recorded investment	8,978	5,850
Loans with related allowance, unpaid principal balance	0	6,048
Loans with related allowance, recorded investment	0	5,264
Allowance	0	$ 22
Installment and Other Loans [Member ]
Loans with no related allowance, unpaid principal balance	9
Loans with no related allowance, recorded investment	$ 8

Note 5 - Loans - Non-accrual Lo

Note 5 - Loans - Non-accrual Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Non-accrual portfolio loans	$ 68,854	$ 65,846	$ 67,684
Interest Income Recognized	435	1,074	1,000
Nonaccrual Loans [Member]
Interest Income Recognized	4,620	4,032	3,093
Interest recognized	435	1,074	1,008
Net interest foregone	$ 4,185	$ 2,958	$ 2,085

Note 5 - Loans - Aging of Loan

Note 5 - Loans - Aging of Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loans	$ 18,254,024	$ 16,342,479
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	81,012	32,812
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	8,921	13,015
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	11,580	1,439
Financial Asset, Past Due [Member]
Loans	170,367	113,112
Non-accrual loans	68,854	65,846
Financial Asset, Not Past Due [Member]
Loans	18,083,657	16,229,367
Commercial Portfolio Segment [Member]
Loans	3,318,778	2,982,399
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	8,192	4,294
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	3,235	9,877
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	10,208	1,439
Commercial Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans	47,407	32,168
Non-accrual loans	25,772	16,558
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	3,271,371	2,950,231
Real Estate Construction Portfolio Segment [Member]
Loans	559,372	611,031
Real Estate Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0	0
Real Estate Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Real Estate Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Real Estate Construction Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans	0	0
Non-accrual loans	0	0
Real Estate Construction Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	559,372	611,031
Commercial Real Estate Portfolio Segment [Member]
Loans	8,793,685	8,143,272
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	25,772	8,389
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	1,372	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans	61,240	46,562
Non-accrual loans	34,096	38,173
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	8,732,445	8,096,710
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Loans	5,577,500	4,601,493
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	47,043	20,129
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	5,685	3,138
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, Past Due [Member]
Loans	61,706	34,382
Non-accrual loans	8,978	11,115
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	5,515,794	4,567,111
Installment and Other Loans [Member ]
Loans	4,689	4,284
Installment and Other Loans [Member ] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	5	0
Installment and Other Loans [Member ] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	1	0
Installment and Other Loans [Member ] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Installment and Other Loans [Member ] | Financial Asset, Past Due [Member]
Loans	14	0
Non-accrual loans	8	0
Installment and Other Loans [Member ] | Financial Asset, Not Past Due [Member]
Loans	$ 4,675	$ 4,284

Note 5 - Loans - Troubled Debt

Note 5 - Loans - Troubled Debt Restructuring (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
No. of Contracts	15	5	5
Pre-Modification Outstanding Recorded Investment	$ 11,980	$ 2,153	$ 5,417
Post-Modification Outstanding Recorded Investment	11,946	2,153	5,417
Specific Reserve	427	0	0
Charge-offs	$ 0	$ 0	$ 0
Commercial Portfolio Segment [Member]
No. of Contracts	4	3	5
Pre-Modification Outstanding Recorded Investment	$ 6,115	$ 2,150	$ 5,417
Post-Modification Outstanding Recorded Investment	6,115	2,150	5,417
Specific Reserve	427	0	0
Charge-offs	$ 0	$ 0	$ 0
Commercial Mortgage Loans [Member]
No. of Contracts	3
Pre-Modification Outstanding Recorded Investment	$ 3,676
Post-Modification Outstanding Recorded Investment	3,669
Specific Reserve	0
Charge-offs	$ 0
Residential Mortgage and Equity Lines Portfolio Segment [Member]
No. of Contracts	8	2
Pre-Modification Outstanding Recorded Investment	$ 2,189	$ 3
Post-Modification Outstanding Recorded Investment	2,162	3
Specific Reserve	0	0
Charge-offs	$ 0	$ 0

Note 5 - Loans - Accruing Troub

Note 5 - Loans - Accruing Troubled Debt Restructurings (Details) - Accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accruing TDRs	$ 15,145	$ 12,837
Payment Deferral [Member]
Accruing TDRs	7,560	5,270
Contractual Interest Rate Reduction [Member]
Accruing TDRs	445	5,771
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	7,140	1,796
Commercial Portfolio Segment [Member]
Accruing TDRs	2,588	3,368
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,588	3,368
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0	0
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	0	0
Commercial Real Estate Portfolio Segment [Member]
Accruing TDRs	8,646	6,128
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,791	438
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0	5,522
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	5,855	168
Residential Portfolio Segment [Member]
Accruing TDRs	3,911	3,341
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	2,181	1,464
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	445	249
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 1,285	$ 1,628

Note 5 - Loans - Non-accrual Tr

Note 5 - Loans - Non-accrual Troubled Debt Restructurings (Details) - Non-accruing Troubled Debt Restructuring [Member] - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accruing TDRs	$ 6,348	$ 8,175
Payment Deferral [Member]
Accruing TDRs	6,348	8,175
Contractual Interest Rate Reduction [Member]
Accruing TDRs	0	0
Rate Reduction and Payment Deferral [Member]
Accruing TDRs	0	0
Commercial Portfolio Segment [Member]
Accruing TDRs	3,629	7,717
Commercial Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	3,629	7,717
Commercial Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0	0
Commercial Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	0	0
Commercial Real Estate Portfolio Segment [Member]
Accruing TDRs	1,098
Commercial Real Estate Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	1,098
Commercial Real Estate Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0
Commercial Real Estate Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	0
Residential Portfolio Segment [Member]
Accruing TDRs	1,621	458
Residential Portfolio Segment [Member] | Payment Deferral [Member]
Accruing TDRs	1,621	458
Residential Portfolio Segment [Member] | Contractual Interest Rate Reduction [Member]
Accruing TDRs	0	0
Residential Portfolio Segment [Member] | Rate Reduction and Payment Deferral [Member]
Accruing TDRs	$ 0	$ 0

Note 5 - Loans - Loan Held for

Note 5 - Loans - Loan Held for Investment by Loan Portfolio Segments, Internal Risk Ratings and Vintage Year (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Total, Loans Amortized Cost Basis by Origination Year 2021	$ 3,943,040	$ 3,731,615
Total, Loans Amortized Cost Basis by Origination Year 2020	3,489,846	2,371,671
Total, Loans Amortized Cost Basis by Origination Year 2019	1,905,136	2,361,902
Total, Loans Amortized Cost Basis by Origination Year 2018	1,908,992	1,885,467
Total, Loans Amortized Cost Basis by Origination Year 2017	1,530,238	1,344,458
Total, Loans Amortized Cost Basis by Origination Year Prior	3,138,606	2,492,497
Total, Revolving Loans	2,303,152	2,107,052
Total, Revolving Converted to Term Loans	28,373	43,496
Total loans	18,247,383	16,338,158
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	201	0
YTD period charge-offs	5,490	20,054
YTD period recoveries	(2,905)	(2,443)
Net, Loans Amortized Cost Basis by Origination Year 2020	587	1,477
Net, Loans Amortized Cost Basis by Origination Year 2019	81	238
Net, Loans Amortized Cost Basis by Origination Year 2018	(169)	242
Net, Loans Amortized Cost Basis by Origination Year 2017	3,623	3
Net, Loans Amortized Cost Basis by Origination Year Prior	(33)	(453)
Net, Revolving Loans	(1,689)	16,168
Net, Revolving Converted to Term Loans	(16)	(64)
Net	2,585	17,611
Special Mention	18,247,383	16,338,158
Commercial Portfolio Segment [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	489,985	607,615
Total, Loans Amortized Cost Basis by Origination Year 2020	464,093	275,415
Total, Loans Amortized Cost Basis by Origination Year 2019	183,386	207,119
Total, Loans Amortized Cost Basis by Origination Year 2018	125,786	160,487
Total, Loans Amortized Cost Basis by Origination Year 2017	113,155	98,167
Total, Loans Amortized Cost Basis by Origination Year Prior	117,988	105,717
Total, Revolving Loans	1,816,937	1,513,837
Total, Revolving Converted to Term Loans	6,693	13,198
Total loans	3,318,023	2,981,555
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	96	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	587	1,478
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	120	507
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	71	366
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	1,786	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	360	50
YTD period charge-offs, Revolving Loans	202	17,650
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	3,222	20,051
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	(8)	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	(1)
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	(39)	(29)
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	0	(124)
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	(254)	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	(335)	(191)
YTD period recoveries, Revolving Loans	(1,829)	(1,361)
YTD period recoveries, Revolving Converted to Term Loans	0	0
YTD period recoveries	(2,465)	(1,706)
Net, Loans Amortized Cost Basis by Origination Year 2021	88	0
Net, Loans Amortized Cost Basis by Origination Year 2020	587	1,477
Net, Loans Amortized Cost Basis by Origination Year 2019	81	478
Net, Loans Amortized Cost Basis by Origination Year 2018	71	242
Net, Loans Amortized Cost Basis by Origination Year 2017	1,532	0
Net, Loans Amortized Cost Basis by Origination Year Prior	25	(141)
Net, Revolving Loans	(1,627)	16,289
Net, Revolving Converted to Term Loans	0	0
Net	757	18,345
Special Mention	3,318,023	2,981,555
Commercial Portfolio Segment [Member] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	488,748	606,770
Total, Loans Amortized Cost Basis by Origination Year 2020	446,647	268,756
Total, Loans Amortized Cost Basis by Origination Year 2019	180,226	183,468
Total, Loans Amortized Cost Basis by Origination Year 2018	119,355	142,419
Total, Loans Amortized Cost Basis by Origination Year 2017	107,896	80,701
Total, Loans Amortized Cost Basis by Origination Year Prior	106,649	100,496
Total, Revolving Loans	1,753,509	1,437,463
Total, Revolving Converted to Term Loans	6,560	7,433
Total loans	3,209,590	2,827,506
Special Mention	3,209,590	2,827,506
Commercial Portfolio Segment [Member] | Special Mention [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	1,212	395
Total, Loans Amortized Cost Basis by Origination Year 2020	4,696	780
Total, Loans Amortized Cost Basis by Origination Year 2019	2,818	1,138
Total, Loans Amortized Cost Basis by Origination Year 2018	68	1,645
Total, Loans Amortized Cost Basis by Origination Year 2017	308	3,157
Total, Loans Amortized Cost Basis by Origination Year Prior	4,354	0
Total, Revolving Loans	41,110	40,761
Total, Revolving Converted to Term Loans	0	49
Total loans	54,566	47,925
Special Mention	54,566	47,925
Commercial Portfolio Segment [Member] | Substandard [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	25	450
Total, Loans Amortized Cost Basis by Origination Year 2020	12,750	5,879
Total, Loans Amortized Cost Basis by Origination Year 2019	342	22,513
Total, Loans Amortized Cost Basis by Origination Year 2018	4,859	16,423
Total, Loans Amortized Cost Basis by Origination Year 2017	2,766	14,309
Total, Loans Amortized Cost Basis by Origination Year Prior	6,985	5,221
Total, Revolving Loans	22,084	34,713
Total, Revolving Converted to Term Loans	133	5,716
Total loans	49,944	105,224
Special Mention	49,944	105,224
Commercial Portfolio Segment [Member] | Doubtful [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	0	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	1,504	0
Total, Loans Amortized Cost Basis by Origination Year 2017	2,185	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	234	900
Total, Revolving Converted to Term Loans	0	0
Total loans	3,923	900
Special Mention	3,923	900
Real Estate Construction Portfolio Segment [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	99,798	199,188
Total, Loans Amortized Cost Basis by Origination Year 2020	264,557	211,889
Total, Loans Amortized Cost Basis by Origination Year 2019	122,761	154,907
Total, Loans Amortized Cost Basis by Origination Year 2018	33,858	41,922
Total, Loans Amortized Cost Basis by Origination Year 2017	35,321	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	556,295	607,906
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period charge-offs, Revolving Loans	0	0
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	(6)	(76)
YTD period recoveries, Revolving Loans	0	0
YTD period recoveries, Revolving Converted to Term Loans	0	0
YTD period recoveries	(6)	(76)
Net, Loans Amortized Cost Basis by Origination Year 2021	0	0
Net, Loans Amortized Cost Basis by Origination Year 2020	0	0
Net, Loans Amortized Cost Basis by Origination Year 2019	0	0
Net, Loans Amortized Cost Basis by Origination Year 2018	0	0
Net, Loans Amortized Cost Basis by Origination Year 2017	0	0
Net, Loans Amortized Cost Basis by Origination Year Prior	(6)	(76)
Net, Revolving Loans	0	0
Net, Revolving Converted to Term Loans	0	0
Net	(6)	(76)
Special Mention	556,295	607,906
Real Estate Construction Portfolio Segment [Member] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	99,798	199,188
Total, Loans Amortized Cost Basis by Origination Year 2020	264,197	188,782
Total, Loans Amortized Cost Basis by Origination Year 2019	113,312	125,316
Total, Loans Amortized Cost Basis by Origination Year 2018	20,479	24,548
Total, Loans Amortized Cost Basis by Origination Year 2017	3,067	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	500,853	537,834
Special Mention	500,853	537,834
Real Estate Construction Portfolio Segment [Member] | Special Mention [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	0	0
Total, Loans Amortized Cost Basis by Origination Year 2020	360	23,107
Total, Loans Amortized Cost Basis by Origination Year 2019	9,449	27,672
Total, Loans Amortized Cost Basis by Origination Year 2018	11,643	17,374
Total, Loans Amortized Cost Basis by Origination Year 2017	22,945	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	44,397	68,153
Special Mention	44,397	68,153
Real Estate Construction Portfolio Segment [Member] | Substandard [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	0	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0	1,919
Total, Loans Amortized Cost Basis by Origination Year 2018	1,736	0
Total, Loans Amortized Cost Basis by Origination Year 2017	9,309	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	11,045	1,919
Special Mention	11,045	1,919
Commercial Real Estate Portfolio Segment [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	2,122,120	1,940,636
Total, Loans Amortized Cost Basis by Origination Year 2020	1,793,483	1,261,007
Total, Loans Amortized Cost Basis by Origination Year 2019	1,015,938	1,316,827
Total, Loans Amortized Cost Basis by Origination Year 2018	1,146,596	1,177,095
Total, Loans Amortized Cost Basis by Origination Year 2017	961,646	790,601
Total, Loans Amortized Cost Basis by Origination Year Prior	1,566,608	1,451,236
Total, Revolving Loans	182,347	202,916
Total, Revolving Converted to Term Loans	0	0
Total loans	8,788,738	8,140,318
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	2,091	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period charge-offs, Revolving Loans	0	0
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	2,091	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	0	(240)
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	(240)	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	(7)	(28)
YTD period recoveries, Revolving Loans	(111)	(111)
YTD period recoveries, Revolving Converted to Term Loans	0	0
YTD period recoveries	(358)	(284)
Net, Loans Amortized Cost Basis by Origination Year 2021	0	0
Net, Loans Amortized Cost Basis by Origination Year 2020	0	0
Net, Loans Amortized Cost Basis by Origination Year 2019	0	(240)
Net, Loans Amortized Cost Basis by Origination Year 2018	(240)	0
Net, Loans Amortized Cost Basis by Origination Year 2017	2,091	0
Net, Loans Amortized Cost Basis by Origination Year Prior	(7)	(28)
Net, Revolving Loans	(111)	(111)
Net, Revolving Converted to Term Loans	0	0
Net	1,733	(379)
YTD period recoveries	(358)	(379)
Special Mention	8,788,738	8,140,318
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	2,087,650	1,893,807
Total, Loans Amortized Cost Basis by Origination Year 2020	1,728,607	1,201,825
Total, Loans Amortized Cost Basis by Origination Year 2019	975,953	1,253,548
Total, Loans Amortized Cost Basis by Origination Year 2018	1,094,505	1,031,191
Total, Loans Amortized Cost Basis by Origination Year 2017	908,748	727,916
Total, Loans Amortized Cost Basis by Origination Year Prior	1,420,982	1,313,882
Total, Revolving Loans	178,116	198,869
Total, Revolving Converted to Term Loans	0	0
Total loans	8,394,561	7,621,038
Special Mention	8,394,561	7,621,038
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	22,150	45,719
Total, Loans Amortized Cost Basis by Origination Year 2020	57,015	59,182
Total, Loans Amortized Cost Basis by Origination Year 2019	25,593	49,796
Total, Loans Amortized Cost Basis by Origination Year 2018	32,119	103,101
Total, Loans Amortized Cost Basis by Origination Year 2017	17,999	61,105
Total, Loans Amortized Cost Basis by Origination Year Prior	63,782	60,448
Total, Revolving Loans	1,600	750
Total, Revolving Converted to Term Loans	0	0
Total loans	220,258	380,101
Special Mention	220,258	380,101
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	12,320	1,110
Total, Loans Amortized Cost Basis by Origination Year 2020	7,861	0
Total, Loans Amortized Cost Basis by Origination Year 2019	14,392	13,483
Total, Loans Amortized Cost Basis by Origination Year 2018	19,972	42,803
Total, Loans Amortized Cost Basis by Origination Year 2017	34,899	1,580
Total, Loans Amortized Cost Basis by Origination Year Prior	81,844	76,906
Total, Revolving Loans	2,631	3,297
Total, Revolving Converted to Term Loans	0	0
Total loans	173,919	139,179
Special Mention	173,919	139,179
Residential Portfolio Segment [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	1,228,597	980,059
Total, Loans Amortized Cost Basis by Origination Year 2020	965,561	623,192
Total, Loans Amortized Cost Basis by Origination Year 2019	583,051	683,049
Total, Loans Amortized Cost Basis by Origination Year 2018	602,752	505,963
Total, Loans Amortized Cost Basis by Origination Year 2017	420,116	455,690
Total, Loans Amortized Cost Basis by Origination Year Prior	1,454,010	935,539
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	5,254,087	4,183,492
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	0	3
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period charge-offs, Revolving Loans	0	0
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	0	3
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	(45)	(208)
YTD period recoveries, Revolving Loans	0	0
YTD period recoveries, Revolving Converted to Term Loans	0	0
YTD period recoveries	(45)	(208)
Net, Loans Amortized Cost Basis by Origination Year 2021	0	0
Net, Loans Amortized Cost Basis by Origination Year 2020	0	0
Net, Loans Amortized Cost Basis by Origination Year 2019	0	0
Net, Loans Amortized Cost Basis by Origination Year 2018	0	0
Net, Loans Amortized Cost Basis by Origination Year 2017	0	3
Net, Loans Amortized Cost Basis by Origination Year Prior	(45)	(208)
Net, Revolving Loans	0	0
Net, Revolving Converted to Term Loans	0	0
Net	(45)	(205)
Special Mention	5,254,087	4,183,492
Residential Portfolio Segment [Member] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	1,228,391	978,375
Total, Loans Amortized Cost Basis by Origination Year 2020	964,799	622,999
Total, Loans Amortized Cost Basis by Origination Year 2019	580,990	678,775
Total, Loans Amortized Cost Basis by Origination Year 2018	600,786	502,325
Total, Loans Amortized Cost Basis by Origination Year 2017	417,565	453,992
Total, Loans Amortized Cost Basis by Origination Year Prior	1,444,320	929,846
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	5,236,851	4,166,312
Special Mention	5,236,851	4,166,312
Residential Portfolio Segment [Member] | Special Mention [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	0	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	46
Total, Loans Amortized Cost Basis by Origination Year 2019	33	1,576
Total, Loans Amortized Cost Basis by Origination Year 2018	0	1,064
Total, Loans Amortized Cost Basis by Origination Year 2017	752	836
Total, Loans Amortized Cost Basis by Origination Year Prior	905	438
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	1,690	3,960
Special Mention	1,690	3,960
Residential Portfolio Segment [Member] | Substandard [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	206	1,684
Total, Loans Amortized Cost Basis by Origination Year 2020	762	147
Total, Loans Amortized Cost Basis by Origination Year 2019	2,028	2,698
Total, Loans Amortized Cost Basis by Origination Year 2018	1,966	2,574
Total, Loans Amortized Cost Basis by Origination Year 2017	1,799	862
Total, Loans Amortized Cost Basis by Origination Year Prior	8,785	5,255
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	15,546	13,220
Special Mention	15,546	13,220
Equity Lines Portfolio Segment [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	748	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	5
Total, Revolving Loans	303,868	390,299
Total, Revolving Converted to Term Loans	21,680	30,298
Total loans	326,296	420,602
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period charge-offs, Revolving Loans	0	0
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period recoveries, Revolving Loans	(11)	(10)
YTD period recoveries, Revolving Converted to Term Loans	(16)	(64)
YTD period recoveries	(27)	(74)
Net, Loans Amortized Cost Basis by Origination Year 2021	0	0
Net, Loans Amortized Cost Basis by Origination Year 2020	0	0
Net, Loans Amortized Cost Basis by Origination Year 2019	0	0
Net, Loans Amortized Cost Basis by Origination Year 2018	0	0
Net, Loans Amortized Cost Basis by Origination Year 2017	0	0
Net, Loans Amortized Cost Basis by Origination Year Prior	0	0
Net, Revolving Loans	(11)	(10)
Net, Revolving Converted to Term Loans	(16)	(64)
Net	(27)	(74)
Special Mention	326,296	420,602
Equity Lines Portfolio Segment [Member] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	731	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	5
Total, Revolving Loans	302,825	389,069
Total, Revolving Converted to Term Loans	21,460	30,025
Total loans	325,016	419,099
Special Mention	325,016	419,099
Equity Lines Portfolio Segment [Member] | Special Mention [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	5
Total, Loans Amortized Cost Basis by Origination Year 2020	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0
Total, Revolving Loans	0
Total, Revolving Converted to Term Loans	0
Total loans	5
Special Mention	5
Equity Lines Portfolio Segment [Member] | Substandard [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	12	0
Total, Loans Amortized Cost Basis by Origination Year 2020	0	0
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	1,043	1,230
Total, Revolving Converted to Term Loans	220	273
Total loans	1,275	1,503
Special Mention	1,275	1,503
Installment and Other Loans [Member ]
Total, Loans Amortized Cost Basis by Origination Year 2021	1,792	4,117
Total, Loans Amortized Cost Basis by Origination Year 2020	2,152	168
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	3,944	4,285
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2021	115	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period charge-offs, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period charge-offs, Revolving Loans	62	0
YTD period charge-offs, Revolving Converted to Term Loans	0	0
YTD period charge-offs	177	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2021	(2)	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2020	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2019	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2018	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year 2017	0	0
YTD period recoveries, Loans Amortized Cost Basis by Origination Year Prior	0	0
YTD period recoveries, Revolving Loans	(2)	0
YTD period recoveries, Revolving Converted to Term Loans	0	0
YTD period recoveries	(4)	0
Net, Loans Amortized Cost Basis by Origination Year 2021	113	0
Net, Loans Amortized Cost Basis by Origination Year 2020	0	0
Net, Loans Amortized Cost Basis by Origination Year 2019	0	0
Net, Loans Amortized Cost Basis by Origination Year 2018	0	0
Net, Loans Amortized Cost Basis by Origination Year 2017	0	0
Net, Loans Amortized Cost Basis by Origination Year Prior	0	0
Net, Revolving Loans	60	0
Net, Revolving Converted to Term Loans	0	0
Net	173	0
Special Mention	3,944	4,285
Installment and Other Loans [Member ] | Pass [Member]
Total, Loans Amortized Cost Basis by Origination Year 2021	1,792	4,117
Total, Loans Amortized Cost Basis by Origination Year 2020	2,152	168
Total, Loans Amortized Cost Basis by Origination Year 2019	0	0
Total, Loans Amortized Cost Basis by Origination Year 2018	0	0
Total, Loans Amortized Cost Basis by Origination Year 2017	0	0
Total, Loans Amortized Cost Basis by Origination Year Prior	0	0
Total, Revolving Loans	0	0
Total, Revolving Converted to Term Loans	0	0
Total loans	3,944	4,285
Special Mention	$ 3,944	$ 4,285

Note 5 - Loans - Allowance for

Note 5 - Loans - Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 136,157	$ 166,538
Provision/(reversal) for loan losses	12,913	(11,210)
Charge-offs	(5,490)	(20,054)
Recoveries	2,905	2,443
Net (Charge-offs)/Recoveries	(2,585)	(17,611)
Balance	146,485	136,157	$ 166,538
Provision/(reversal) for credit losses	14,543	(16,008)	57,500
Commitments to Extend Credit [Member]
Balance	7,100	11,898
Balance	8,730	7,100	11,898
Provision/(reversal) for credit losses	1,630	(4,798)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		(1,560)
Balance			(1,560)
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		164,978
Balance			164,978
Commercial Portfolio Segment [Member]
Balance	43,394	68,742
Provision/(reversal) for loan losses	6,798	24,463
Charge-offs	(3,222)	(20,051)
Recoveries	2,465	1,706
Net (Charge-offs)/Recoveries	(757)	(18,345)
Balance	49,435	43,394	68,742
Commercial Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	3,725	8,038
Balance	4,840	3,725	8,038
Provision/(reversal) for credit losses	1,115	(4,313)
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		(31,466)
Balance			(31,466)
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		37,276
Balance			37,276
Real Estate Construction Portfolio Segment [Member]
Balance	6,302	30,854
Provision/(reversal) for loan losses	4,109	(321)
Charge-offs	0	0
Recoveries	6	76
Net (Charge-offs)/Recoveries	6	76
Balance	10,417	6,302	30,854
Real Estate Construction Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	3,375	3,825
Balance	3,890	3,375	3,825
Provision/(reversal) for credit losses	515	(450)
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		(24,307)
Balance			(24,307)
Real Estate Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		6,547
Balance			6,547
Commercial Real Estate Portfolio Segment [Member]
Balance	61,081	49,205
Provision/(reversal) for loan losses	9,018	(23,401)
Charge-offs	(2,091)	0
Recoveries	358	284
Net (Charge-offs)/Recoveries	(1,733)	284
Balance	68,366	61,081	49,205
Commercial Real Estate Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	0	35
Balance	0	0	35
Provision/(reversal) for credit losses	0	(35)
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		34,993
Balance			34,993
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		84,198
Balance			84,198
Residential Mortgage and Equity Lines Portfolio Segment [Member]
Balance	25,379	17,737
Provision/(reversal) for loan losses	(7,219)	(11,943)
Charge-offs	0	(3)
Recoveries	72	377
Net (Charge-offs)/Recoveries	72	374
Balance	18,232	25,379	17,737
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Commitments to Extend Credit [Member]
Balance	0	0
Balance	0	0	0
Provision/(reversal) for credit losses	0	0
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		19,211
Balance			19,211
Residential Mortgage and Equity Lines Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		36,948
Balance			36,948
Installment and Other Loans [Member ]
Balance	1	0
Provision/(reversal) for loan losses	207	(8)
Charge-offs	(177)	0
Recoveries	4	0
Net (Charge-offs)/Recoveries	(173)	0
Balance	35	1	0
Installment and Other Loans [Member ] | Commitments to Extend Credit [Member]
Balance	0	0
Balance	0	0	0
Provision/(reversal) for credit losses	$ 0	0
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Balance		9
Balance			9
Installment and Other Loans [Member ] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		$ 9
Balance			$ 9

Note 6 - Investments in Affor_3

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Investments in Affordable Housing and Alternative Energy Partnerships		$ 327,100	$ 299,200
Number of Limited Partnerships Deemed to be Variable Interest Entities			10
Increase in Total Assets and Liabilities from Consolidating Affordable Housing Equity Interest		31,300	$ 31,100
Alternative Energy Tax Credit Partnership Investments, Net	$ 37,208	37,200	11,694
Alternative Energy Tax Credit Partnership Investments, Held in Escrow		25,400	690,000
Asset Impairment Charges, Total	$ 4,145		1,172	$ 7,836
Affordable Housing Limited Partnerships [Member]
Asset Impairment Charges, Total		6,200	$ 1,800
Affordable Housing Limited Partnerships [Member] | Domestic Tax Authority [Member]
Remaining and Future Available Tax Credit		238,600
Affordable Housing Limited Partnerships [Member] | State and Local Jurisdiction [Member]
Remaining and Future Available Tax Credit		$ 7,900

Note 6 - Investments in Affor_4

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships - Investments in Affordable Housing and Alternative Energy Partnerships (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 30, 2022	Dec. 31, 2021
Investments in affordable housing partnerships, net	$ 289,920		$ 287,517
Other borrowings for affordable housing limited partnerships	22,600		23,145
Investments in affordable housing and alternative energy partnerships, unfunded commitments	133,491		107,652
Investments in alternative energy tax credit partnerships, net	$ 37,208	$ 37,200	$ 11,694

Note 6 - Investments in Affor_5

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships - Unfunded Commitments Future Estimated Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023	$ 78,897
2024	33,154
2025	14,076
2026	1,678
2027	1,533
Thereafter	4,153
Total unfunded commitments	$ 133,491	$ 107,652

Note 6 - Investments in Affor_6

Note 6 - Investments in Affordable Housing and Alternative Energy Partnerships - Usage of Affordable Housing and Other Tax Credits Including Energy Tax Credit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Affordable housing and other tax credits recognized	$ 29,524	$ 26,459	$ 23,273
Alternative energy tax credits recognized	$ 4,707	$ 6,337	$ 29,706

Note 7 - Premises and Equipme_3

Note 7 - Premises and Equipment (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Depreciation, Amortization and Accretion, Net, Total	$ 8	$ 7.7	$ 7

Note 7 - Premises and Equipme_4

Note 7 - Premises and Equipment - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, plant, and equipment, gross	$ 208,435	$ 206,218
Less: Accumulated depreciation	113,659	106,816
Premises and equipment, net	94,776	99,402
Land and Land Improvements [Member]
Property, plant, and equipment, gross	42,566	42,475
Building and Building Improvements [Member]
Property, plant, and equipment, gross	81,613	81,290
Furniture Fixtures and Equipment [Member]
Property, plant, and equipment, gross	65,872	62,138
Leasehold Improvements [Member]
Property, plant, and equipment, gross	18,009	17,862
Construction in Progress [Member]
Property, plant, and equipment, gross	$ 375	$ 2,453

Note 8 - Goodwill and Other I_3

Note 8 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Feb. 07, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill, Ending Balance		$ 375,696	$ 372,189
Amortization of Intangible Assets		1,892	687	$ 687
Core Deposits [Member]
Amortization of Intangible Assets		1,900	687	687
Core Deposits [Member] | Amortization of Core Deposit Intangibles [Member]
Impairment of Intangible Assets, Finite-Lived		918	$ 0	$ 0
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member]
Goodwill, Ending Balance	$ 3,507
Goodwill, Acquired During Period	$ 3,500
HSBC Bank USA West Coast Mass Market Consumer and Retail Banking Business [Member] | Core Deposits [Member]
Finite-Lived Intangible Assets Acquired		$ 3,100

Note 8 - Goodwill and Other I_4

Note 8 - Goodwill and Other Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net carrying balance	$ 5,353
Core Deposits [Member]
Gross balance	10,562	$ 7,424
Accumulated amortization	(4,291)	(3,317)
Net carrying balance	5,353	4,107
Core Deposits [Member] | Amortization of Core Deposit Intangibles [Member]
Impairment	$ (918)	$ 0	$ 0

Note 8 - Goodwill and Other I_5

Note 8 - Goodwill and Other Intangible Assets - Maturity Schedule of Intangible Assets (Details) $ in Thousands	Dec. 31, 2022 USD ($)
2023	$ 1,001
2024	1,001
2025	946
2026	870
2027	870
thereafter	665
Total	$ 5,353

Note 9 - Deposits (Details Text

Note 9 - Deposits (Details Textual) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deposit Liabilities, Accrued Interest	$ 13.2	$ 1.7	$ 8.5
Geographic Distribution, Domestic [Member]
Time Deposits, at or Above FDIC Insurance Limit	4,100	2,700
Geographic Distribution, Foreign [Member]
Time Deposits, at or Above FDIC Insurance Limit	$ 128.6	$ 156.9

Note 9 - Deposits - Deposit Bal

Note 9 - Deposits - Deposit Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Non-interest-bearing demand deposits	$ 4,168,989	$ 4,492,054
Interest bearing demand deposits	2,509,736	2,522,442
Money market deposits	3,812,724	4,611,579
Savings deposits	1,000,460	915,515
Time deposits	7,013,370	5,517,252
Total deposits	$ 18,505,279	$ 18,058,842

Note 9 - Deposits - Time Deposi

Note 9 - Deposits - Time Deposit Maturities (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Time deposits 2023	$ 6,926,121
Time deposits 2024	79,376
Time deposits 2025	5,094
Time deposits 2026	591
Time deposits 2027	2,168
Time deposits thereafter	20
Time deposits	$ 7,013,370

Note 9 - Deposits - Interest Ex

Note 9 - Deposits - Interest Expense on Time Deposits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest bearing demand	$ 8,176	$ 2,249	$ 2,816
Money market accounts	39,913	18,241	21,574
Saving accounts	853	769	1,006
Time deposits	56,354	40,542	111,629
Total	$ 105,296	$ 61,801	$ 137,025

Note 10 - Borrowed Funds (Detai

Note 10 - Borrowed Funds (Details Textual) - USD ($) $ in Thousands					12 Months Ended
	Mar. 28, 2019	Nov. 23, 2014	Mar. 13, 2014	Nov. 23, 2004	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Securities Sold under Agreements to Repurchase, Total					$ 0	$ 0
Advance from Federal Home Loan Bank, Total					485,000	20,000
Threshold for Deferred Bonus				$ 225,000
Amount of Deferred Bonus Accrued in Other Liabilities			$ 300	$ 610
Accrued Interest on Deferred Bonus	5.72%	5.06%	5.02%	7%
Interest Expense, Other					116	110	$ 105
Accrued Bonuses					2,300	2,100
Junior Subordinated Notes, Noncurrent					$ 119,100	$ 119,100
Junior Subordinated Debt [Member]
Debt Instrument, Term (Year)						30 years
Debt Instrument, Interest Rate, Effective Percentage					4.01%	2.38%
Interest Expense, Debt, Total					$ 4,800	$ 2,800	$ 3,600
Mature in May 2023 [Member]
Advance from Federal Home Loan Bank, Total					300,000	20,000
Mature in September 2024 [Member]
Advance from Federal Home Loan Bank, Total					15,000
Ten-year Treasury Note [Member]
Debt Instrument, Basis Spread on Variable Rate		2.75%
Debt Instrument, Term (Year)		10 years
Five-year Treasury Note [Member]
Debt Instrument, Basis Spread on Variable Rate	3.50%
Debt Instrument, Term (Year)	5 years
Over-night Borrowings [Member]
Advance from Federal Home Loan Bank, Total					$ 150,000	0
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate					4.65%
Non Overnight Borrowings [Member]
Advance from Federal Home Loan Bank, Total					$ 335,000	$ 20,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate					4.54%	2.89%

Note 11 - Capital Resources (De

Note 11 - Capital Resources (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	7 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Sep. 02, 2021	Dec. 31, 2019
Stockholders' Equity Attributable to Parent, Ending Balance		$ 2,474,040	$ 2,474,040	$ 2,446,251	$ 2,418,144		$ 2,294,283
Stockholders' Equity, Period Increase (Decrease), Total			$ 27,800
Stockholders' Equity, Period Increase (Decrease), Percentage			1.10%
Net Income (Loss) Attributable to Parent, Total			$ 360,642	298,304	228,860
Proceeds from Issuance of Common Stock, Dividend Reinvestment Plan			3,720	3,563	9,777
Share-Based Payment Arrangement, Expense			7,000
Other Comprehensive Income (Loss), Net of Tax, Total			(99,230)	(8,375)	3,008
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation			2,905	2,632	1,911
Treasury Stock, Value, Acquired, Cost Method	$ 32,900	$ 108,400	141,315	167,104	23,593
Dividends, Common Stock, Cash			$ 100,955	$ 99,322	$ 98,688
Common Stock, Dividends, Per Share, Cash Paid (in dollars per share)			$ 1.36	$ 1.27	$ 1.24
Treasury Stock, Shares, Acquired (in shares)	704,927	2,522,538	3,227,465
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 46.67	$ 42.98	$ 43.79
Stock Repurchase Program, Authorized Amount						$ 125,000
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Expense			$ 7,000	$ 6,000	$ 5,600
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation			$ 2,900

Note 11 - Capital Resources - O

Note 11 - Capital Resources - Outstanding Junior Subordinated Notes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	May 31, 2014
Junior subordinated debt	$ 119,136	$ 119,136	$ 119,100
Cathay Capital Trust I [Member]
Junior subordinated debt	$ 20,619	$ 20,619
current interest rate	6.82%	3.37%
coupon rate	3.15%	3.15%
Cathay Statutory Trust I [Member]
Junior subordinated debt	$ 20,619	$ 20,619
current interest rate	6.53%	3.22%
coupon rate	3%	3%
Cathay Capital Trust II [Member]
Junior subordinated debt	$ 12,887	$ 12,887
current interest rate	6.57%	3.12%
coupon rate	2.90%	2.90%
Cathay Capital Trust III [Member]
Junior subordinated debt	$ 46,392	$ 46,392
current interest rate	4.77%	1.68%
coupon rate	1.48%	1.48%
Cathay Capital Trust IV [Member]
Junior subordinated debt	$ 18,619	$ 18,619
current interest rate	4.54%	1.58%
coupon rate	1.40%	1.40%

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards		$ 9,600
Deferred Tax Assets, Operating Loss Carryforwards, Total		5,916	$ 8,732
Deferred Tax Assets, Tax Credit Carryforwards, Other		7,500
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax		1,000
Income Taxes Receivable		16,700	$ 41,100
Domestic Tax Authority [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Total		2,020
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Open Tax Year	2017 2018 2019 2020 2021
State and Local Jurisdiction [Member] | California Franchise Tax Board [Member]
Operating Loss Carryforwards		39,400
Deferred Tax Assets, Operating Loss Carryforwards, Total		$ 3,900

Note 12 - Income Taxes - Compon

Note 12 - Income Taxes - Components of Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 57,029	$ 29,955	$ (2,196)
State	56,953	44,416	36,787
Total Current	113,982	74,371	34,591
Federal	(1,776)	5,986	(3,234)
State	(312)	3,182	(6,252)
Total Deferred	(2,088)	9,168	(9,486)
Total income tax expense, amount	$ 111,894	$ 83,539	$ 25,105

Note 12 - Income Taxes - Deferr

Note 12 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loan loss allowance, due to differences in computation of bad debts	$ 47,673	$ 43,895
Accrual for bonuses	2,591	4,935
Non-accrual interest	1,572	1,117
Write-down on equity securities and venture capital investments	1,975	2,000
State tax	6,251	4,691
Unrealized loss on interest rate swaps	0	1,394
Unrealized loss on securities available-for-sale, net	40,400	0
Tax credits carried forward	9,136	9,136
Net operating loss carried forward	5,916	8,732
Other, net	4,711	3,765
Gross deferred tax assets	120,225	79,665
Deferred loan costs	(10,025)	(9,936)
Depreciation and amortization	(2,856)	(3,150)
Unrealized gain on interest rate swaps	(1,364)	0
Unrealized gain on securities available-for-sale, net	0	(3,823)
OREO Installment Sale	0	(1,273)
Dividends on Federal Home Loan Bank common stock	(981)	(978)
Other, net	(3,506)	(2,168)
Gross deferred tax liabilities	(18,732)	(21,328)
Net deferred tax assets	$ 101,493	$ 58,337

Note 12 - Income Taxes - Income

Note 12 - Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tax provision at Federal statutory rate, amount	$ 99,233	$ 80,187	$ 53,333
Tax provision at Federal statutory rate, percent	21%	21%	21%
State income taxes, net of Federal income tax benefit, amount	$ 44,837	$ 37,602	$ 23,602
State income taxes, net of Federal income tax benefit, percent	9.50%	9.80%	9.30%
Excess deduction for stock option and RSUs, amount	$ (140)	$ (20)	$ 264
Excess deduction for stock option and RSUs, percent	0%	0%	0.10%
Low income housing and other tax credits, amount	$ (34,231)	$ (32,795)	$ (52,979)
Low income housing and other tax credits, percent	(7.20%)	(8.60%)	(20.80%)
Other, net, amount	$ 2,195	$ (1,435)	$ 885
Other, net, percent	0.40%	(0.30%)	0.30%
Total income tax expense, amount	$ 111,894	$ 83,539	$ 25,105
Total income tax expense, percent	23.70%	21.90%	9.90%

Note 13 - Stockholders' Equit_3

Note 13 - Stockholders' Equity and Earnings Per Share (Details Textual) - USD ($) shares in Thousands, $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval	$ 296.2	$ 207.8
Preferred Stock, Shares Issued, Total (in shares)	0

Note 13 - Stockholders' Equit_4

Note 13 - Stockholders' Equity and Earnings Per Share- Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Beginning balance, loss, net of tax	$ 2,446,251	$ 2,418,144	$ 2,294,283
Total other comprehensive (loss)/income, net of tax	(99,230)	(8,375)	3,008
Ending balance, loss, net of tax	2,474,040	2,446,251	2,418,144
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Beginning balance, loss, net of tax	211	12,200
Net unrealized (losses)/gains arising during the period, pre-tax	(149,124)	(16,167)
Net unrealized (losses)/gains arising during the period, tax	(44,081)	(4,779)
Net unrealized (losses)/gains arising during the period, net of tax	(105,043)	(11,388)
Reclassification adjustment for net losses/(gains) included in net income, pre-tax	0	853
Reclassification adjustment for net losses/(gains) included in net income, tax	0	252
Reclassification adjustment for net losses/(gains) included in net income, net of tax	0	601
Total other comprehensive (loss)/income, pre-tax	(149,124)	(17,020)
Total other comprehensive (loss)/income, tax	(44,081)	(5,031)
Total other comprehensive (loss)/income, net of tax	(105,043)	(11,989)
Ending balance, loss, net of tax	(104,832)	211	12,200
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Beginning balance, loss, net of tax	(3,276)	(6,890)
Net unrealized (losses)/gains arising during the period, pre-tax	10,864	5,131
Net unrealized (losses)/gains arising during the period, tax	3,211	1,517
Net unrealized (losses)/gains arising during the period, net of tax	7,653	3,614
Reclassification adjustment for net losses/(gains) included in net income, pre-tax	2,612	0
Reclassification adjustment for net losses/(gains) included in net income, tax	772	0
Reclassification adjustment for net losses/(gains) included in net income, net of tax	1,840	0
Total other comprehensive (loss)/income, pre-tax	8,252	5,131
Total other comprehensive (loss)/income, tax	2,439	1,517
Total other comprehensive (loss)/income, net of tax	5,813	3,614
Ending balance, loss, net of tax	2,537	(3,276)	(6,890)
AOCI Attributable to Parent [Member]
Beginning balance, loss, net of tax	(3,065)	5,310	2,302
Net unrealized (losses)/gains arising during the period, pre-tax	(138,260)	(11,036)
Net unrealized (losses)/gains arising during the period, tax	(40,870)	(3,262)
Net unrealized (losses)/gains arising during the period, net of tax	(97,390)	(7,774)
Reclassification adjustment for net losses/(gains) included in net income, pre-tax	2,612	853
Reclassification adjustment for net losses/(gains) included in net income, tax	772	252
Reclassification adjustment for net losses/(gains) included in net income, net of tax	1,840	601
Total other comprehensive (loss)/income, pre-tax	(140,872)	(11,889)
Total other comprehensive (loss)/income, tax	(41,642)	(3,514)
Total other comprehensive (loss)/income, net of tax	(99,230)	(8,375)	3,008
Ending balance, loss, net of tax	$ (102,295)	$ (3,065)	$ 5,310

Note 13 - Stockholders' Equit_5

Note 13 - Stockholders' Equity and Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 360,642	$ 298,304	$ 228,860
Basic EPS, income	$ 360,642	$ 298,304	$ 228,860
Basic EPS, income (in shares)	74,337,265	78,268,369	79,584,560
Basic EPS, income (in dollars per share)	$ 4.85	$ 3.81	$ 2.88
Effect of dilutive stock options and RSU (in shares)	327,470	302,269	193,287
Diluted EPS, income	$ 360,642	$ 298,304	$ 228,860
Diluted EPS, income (in shares)	74,664,735	78,570,638	79,777,847
Diluted EPS, income (in dollars per share)	$ 4.83	$ 3.80	$ 2.87

Note 14 - Commitments and Con_3

Note 14 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments To Extend Notional Amount	$ 3,630,304	$ 3,297,362
Commitments to Fund Fixed Rate Loans	93,100	111,400
Commitments to Fund Adjustable Rate Loans	$ 3,540,000	$ 3,190,000

Note 14 - Commitments and Con_4

Note 14 - Commitments and Contingencies - Financial Instruments With Off-balance Sheet Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments	$ 3,975,541	$ 3,580,504
Commitments to Extend Credit [Member]
Commitments	3,630,304	3,297,362
Standby Letters of Credit [Member]
Commitments	315,821	266,490
Commercial Letters of Credit [Member]
Commitments	$ 29,416	$ 16,652

Note 15 - Leases (Details Textu

Note 15 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Lease, Expense	$ 13.1	$ 11.6	$ 11.7

Note 15 - Leases - Operating Le

Note 15 - Leases - Operating Lease Related Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Right-of-use assets- operating leases	$ 29,627	$ 27,834
Lease liabilities - operating leases	$ 32,518	$ 30,694
Weighted-average remaining lease term (in years) (Year)	4 years	4 years 4 months 24 days
Weighted-average discount rate	2.90%	2.61%
Operating cash flows from operating leases	$ 11,400	$ 9,900
ROU assets obtained in exchange for lease obligations	$ 5,900	$ 6,000

Note 13 - Leases - Lease Maturi

Note 13 - Leases - Lease Maturity Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023	$ 10,833
2024	8,415
2025	5,702
2026	4,587
2027	2,991
Thereafter	1,955
Total lease payments	34,483
Less amount of payment representing interest	(1,965)
Lease liabilities - operating leases	$ 32,518	$ 30,694

Note 16 - Financial Derivativ_3

Note 16 - Financial Derivatives (Details Textual) $ in Thousands		12 Months Ended
	May 31, 2014 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Junior Subordinated Notes, Total	$ 119,100	$ 119,136	$ 119,136
Cash [Member]
Collateral Already Posted, Aggregate Fair Value		0	5,900
Interest Rate Swap [Member]
Derivative, Notional Amount		204,300
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative Outstanding, Notional Amount	$ 119,100	595,400	457,000
Derivative, Notional Amount		0	119,136
Derivative Asset, Number of Instruments Held	5
Derivative Original Maturity (Year)	10 years
Deferred Gain on Early Termination of Derivative		4,000
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Central Counterparties (CCP) [Member]
Derivative, Notional Amount		205,600
Derivative, Gain on Derivative		20,200
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative, Notional Amount		$ 874,034	729,280
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Minimum [Member]
Derivative, Term of Contract (Year)		3 years
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Maximum [Member]
Derivative, Term of Contract (Year)		10 years
Interest Rate Swap [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Central Counterparties (CCP) [Member]
Derivative, Notional Amount		$ 449,300
Derivative, Gain on Derivative		25,800
Loans Receivable with Partial-term Hedging Designation [Member]
Derivative, Notional Amount			748,600
Hedged Asset, Fair Value Hedge		669,700	404,400
Loan, Notational Amount		1,200
Hedged Asset, Fair Value Hedge, Last-of-Layer, Cumulative Increase (Decrease)		$ 31,000	$ 4,900

Note 16 - Financial Derivativ_4

Note 16 - Financial Derivatives - Cash Flow Swap Hedges (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loss, net of taxes (1)		$ 5,813	$ 3,614	$ (3,478)
Interest Rate Swap [Member]
Notional		204,300
Interest Rate Swap [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
Notional		$ 0	$ 119,136
Weighted average fixed rate-pay		0%	2.61%
Weighted average variable rate-receive		0%	0.16%
Loss, net of taxes (1)		$ 0	$ (3,276)
Periodic net settlement of swaps	[1]	$ 772	$ 2,949
[1]the amount of periodic net settlement of interest rate swaps was included in interest expense.

Note 16 - Financial Derivativ_5

Note 16 - Financial Derivatives - Fair Value Swap Hedges (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net gain/(loss) (1)		$ 5,813	$ 3,614	$ (3,478)
Periodic net settlement of SWAPs	[1]	3,107	(9,345)
Interest Rate Swap [Member]
Derivative, Notional Amount		204,300
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member]
Derivative, Notional Amount		$ 874,034	$ 729,280
Weighted average fixed rate-pay		2.12%	2.65%
Weighted average variable rate-receive		2.61%	1.43%
Net gain/(loss) (1)		$ 38,589	$ (1,013)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] | London Interbank Offered Rate (LIBOR) [Member]
Weighted average variable rate spread		0.68%	1.31%
[1]the amount of periodic net settlement of interest rate swaps was included in interest income.

Note 16 - Financial Derivativ_6

Note 16 - Financial Derivatives - Not Designated as Hedging (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Foreign Exchange Forward [Member]
Notional	$ 0	$ 676
Option contracts	0	3
Spot, Forward, and Swap Contracts with Negative Fair Value [Member]
Notional	72,996	181,997
Option contracts	448	1,113
Spot, Forward, and Swap Contracts with Positive Fair Value [Member]
Notional	170,213	51,782
Option contracts	$ (942)	$ (327)

Note 17 - Fair Value Measurem_3

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total	$ 4,067	$ 4,368
Minimum [Member]
Estimated Sales Cost Applied To Collateral	3%
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	4.25
Minimum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	20.14
Minimum [Member] | Warrants Outstanding [Member]
Expected Life Of Warrants (Year)	1 year
Maximum [Member]
Estimated Sales Cost Applied To Collateral	6%
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input	5.11
Maximum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input	27.69
Maximum [Member] | Warrants Outstanding [Member]
Expected Life Of Warrants (Year)	6 years
Net of Estimated Disposal Costs [Member]
Other Real Estate, Foreclosed Assets, and Repossessed Assets, Total	$ 4,100	$ 4,400

Note 17 - Fair Value Measurem_4

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities available-for-sale	$ 1,473,348	$ 1,127,309
Equity securities	22,158	22,319
Assets, fair value disclosure	1,540,447	1,160,854
Liabilities, fair value disclosure	52,806	12,969
Mutual Funds [Member]
Equity securities	5,509	6,230
Preferred Stock of Government Sponsored Entities [Member]
Equity securities	1,289	1,811
Other Equity Securities [Member]
Equity securities	15,360	14,278
Warrant [Member]
Assets, fair value disclosure	50	23
Interest Rate Swap [Member]
Assets, fair value disclosure	44,443	10,090
Liabilities, fair value disclosure	51,864	12,642
Foreign Exchange Contract [Member]
Assets, fair value disclosure	448	1,113
Liabilities, fair value disclosure	942	327
Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	240,500	0
Equity securities	22,158	22,319
Assets, fair value disclosure	262,658	22,319
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] | Mutual Funds [Member]
Equity securities	5,509	6,230
Fair Value, Inputs, Level 1 [Member] | Preferred Stock of Government Sponsored Entities [Member]
Equity securities	1,289	1,811
Fair Value, Inputs, Level 1 [Member] | Other Equity Securities [Member]
Equity securities	15,360	14,278
Fair Value, Inputs, Level 1 [Member] | Warrant [Member]
Assets, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 1 [Member] | Foreign Exchange Contract [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	1,232,848	1,127,309
Equity securities	0	0
Assets, fair value disclosure	1,277,739	1,138,512
Liabilities, fair value disclosure	52,806	12,969
Fair Value, Inputs, Level 2 [Member] | Mutual Funds [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] | Preferred Stock of Government Sponsored Entities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] | Other Equity Securities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 2 [Member] | Warrant [Member]
Assets, fair value disclosure	0	0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Assets, fair value disclosure	44,443	10,090
Liabilities, fair value disclosure	51,864	12,642
Fair Value, Inputs, Level 2 [Member] | Foreign Exchange Contract [Member]
Assets, fair value disclosure	448	1,113
Liabilities, fair value disclosure	942	327
Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Equity securities	0	0
Assets, fair value disclosure	50	23
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] | Preferred Stock of Government Sponsored Entities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] | Other Equity Securities [Member]
Equity securities	0	0
Fair Value, Inputs, Level 3 [Member] | Warrant [Member]
Assets, fair value disclosure	50	23
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
Fair Value, Inputs, Level 3 [Member] | Foreign Exchange Contract [Member]
Assets, fair value disclosure	0	0
Liabilities, fair value disclosure	0	0
US Treasury Securities [Member]
Securities available-for-sale	240,500	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	240,500	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	0	0
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
US Government Corporations and Agencies Securities [Member]
Securities available-for-sale	63,610	87,509
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	63,610	87,509
US Government Corporations and Agencies Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
US Government-sponsored Enterprises Debt Securities [Member]
Securities available-for-sale	30,000
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	30,000
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0
Commercial Mortgage-Backed Securities [Member]
Securities available-for-sale	867,094	888,665
Commercial Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Commercial Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	867,094	888,665
Commercial Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Collateralized Mortgage Obligations [Member]
Securities available-for-sale	31,061	9,117
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	31,061	9,117
Collateralized Mortgage Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	0	0
Corporate Debt Securities [Member]
Securities available-for-sale	241,083	142,018
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale	0	0
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale	241,083	142,018
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale	$ 0	$ 0

Note 17 - Fair Value Measurem_5

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments - Financial Assets and Liabilities Measured on a Non-recurring Basis (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets, fair value disclosure		$ 1,540,447	$ 1,160,854
Total Losses		4,145	1,172	$ 7,836
Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		59,158	28,446
Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure		262,658	22,319
Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure		1,277,739	1,138,512
Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure		50	23
Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		59,158	28,446
Impaired Loans [Member]
Total Losses		3,877	1,012	7,012
Impaired Loans [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		54,141	22,905
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		54,141	22,905
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Total Losses		1,786	1,012	7,012
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		12,950	4,327
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		12,950	4,327
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Total Losses		2,091	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		32,205	13,335
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		32,205	13,335
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member]
Assets, fair value disclosure		8,978	5,243
Total Losses		0	0	0
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Assets, fair value disclosure		0	0
Impaired Loans [Member] | Residential Mortgage and Equity Lines Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Assets, fair value disclosure		8,978	5,243
Impaired Loans [Member] | Other Installment Loans [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		8
Total Losses		0	0
Impaired Loans [Member] | Other Installment Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0
Impaired Loans [Member] | Other Installment Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0
Impaired Loans [Member] | Other Installment Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		8
Other Real Estate Owned [Member]
Total Losses	[1]	0	17	717
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure	[1]	4,328	4,589
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure	[1]	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure	[1]	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure	[1]	4,328	4,589
Investments in Venture Capital [Member]
Total Losses		268	143	$ 107
Investments in Venture Capital [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		689	952
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		0	0
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Assets, fair value disclosure		$ 689	$ 952
[1]Other real estate owned balance of $4.1 million in the Consolidated Balance Sheets is net of estimated disposal costs.

Note 17 - Fair Value Measurem_6

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Securities available-for-sale		$ 1,473,348	$ 1,127,309
Equity securities		22,158	22,319
Warrants		90,451	10,090
Foreign exchange contracts with gain		72,996	181,997
Foreign exchange contracts with gain, fair value		448	1,113
Interest rate swaps		817,615	904,635
Interest rate swaps, fair value		44,443	10,090
Option contracts		0	676
Option contracts, fair value		0	3
Foreign exchange contracts with loss		170,213	51,782
Foreign exchange contracts with loss, fair value		942	327
Interest rate swaps		595,426	872,400
Interest rate swaps, fair value		51,864	12,642
Commitments to extend credit		3,630,304	3,297,362
Commitments to extend credit, fair value		(14,797)	(12,594)
Standby letters of credit		315,821	266,490
Standby letters of credit, fair value		(2,738)	(2,640)
Other letters of credit		29,416	16,652
Other letters of credit, fair value		(33)	(13)
Reported Value Measurement [Member]
Cash and due from banks		195,440	134,141
Short-term investments		966,962	2,315,563
Securities available-for-sale		1,473,348	1,127,309
Loans, net		18,100,898	16,202,001
Equity securities		22,158	22,319
Investment in Federal Home Loan Bank stock		17,250	17,250
Deposits		18,505,279	18,058,842
Advances from Federal Home Loan Bank		485,000	20,000
Other borrowings		22,600	23,145
Long-term debt		119,136	119,136
Reported Value Measurement [Member] | Warrants [Member]
Warrants		50	23
Estimate of Fair Value Measurement [Member]
Cash and due from banks		195,440	134,141
Short-term investments		966,962	2,315,563
Securities available-for-sale		1,473,348	1,127,309
Loans, net	[1]	17,944,588	16,499,869
Equity securities		22,158	22,319
Investment in Federal Home Loan Bank stock		17,250	17,250
Deposits		18,572,387	18,051,720
Advances from Federal Home Loan Bank		482,737	21,279
Other borrowings		18,385	18,945
Long-term debt		68,231	62,274
Estimate of Fair Value Measurement [Member] | Warrants [Member]
Warrants		$ 50	$ 23
[1]In accordance with the prospective adoption of ASU 2016-01, the fair value of loans as of December 31, 2019 & 2018 was measured using an exit price notion.

Note 17 - Fair Value Measurem_7

Note 17 - Fair Value Measurements and Fair Value of Financial Instruments - Fair Value Hierarchy of Financial Instruments (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Securities available-for-sale		$ 1,473,348	$ 1,127,309
Equity securities		22,158	22,319
Warrants		90,451	10,090
Fair Value, Inputs, Level 1 [Member]
Securities available-for-sale		240,500	0
Equity securities		22,158	22,319
Fair Value, Inputs, Level 2 [Member]
Securities available-for-sale		1,232,848	1,127,309
Equity securities		0	0
Fair Value, Inputs, Level 3 [Member]
Securities available-for-sale		0	0
Equity securities		0	0
Estimate of Fair Value Measurement [Member]
Cash and due from banks		195,440	134,141
Short-term investments		966,962	2,315,563
Securities available-for-sale		1,473,348	1,127,309
Loans, net	[1]	17,944,588	16,499,869
Equity securities		22,158	22,319
Investment in Federal Home Loan Bank stock		17,250	17,250
Deposits		18,572,387	18,051,720
Advances from Federal Home Loan Bank		482,737	21,279
Other borrowings		18,385	18,945
Long-term debt		68,231	62,274
Estimate of Fair Value Measurement [Member] | Warrants [Member]
Warrants		50	23
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks		195,440	134,141
Short-term investments		966,962	2,315,563
Securities available-for-sale		240,500	0
Loans, net	[1]	0	0
Equity securities		22,158	22,319
Investment in Federal Home Loan Bank stock		0	0
Deposits		0	0
Advances from Federal Home Loan Bank		0	0
Other borrowings		0	0
Long-term debt		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member] | Warrants [Member]
Warrants		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and due from banks		0	0
Short-term investments		0	0
Securities available-for-sale		1,232,848	1,127,309
Loans, net	[1]	0	0
Equity securities		0	0
Investment in Federal Home Loan Bank stock		17,250	17,250
Deposits		0	0
Advances from Federal Home Loan Bank		482,737	21,279
Other borrowings		0	0
Long-term debt		68,231	62,274
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member] | Warrants [Member]
Warrants		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and due from banks		0	0
Short-term investments		0	0
Securities available-for-sale		0	0
Loans, net	[1]	17,944,588	16,499,869
Equity securities		0	0
Investment in Federal Home Loan Bank stock		0	0
Deposits		18,572,387	18,051,720
Advances from Federal Home Loan Bank		0	0
Other borrowings		18,385	18,945
Long-term debt		0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Warrants [Member]
Warrants		$ 50	$ 23
[1]In accordance with the prospective adoption of ASU 2016-01, the fair value of loans as of December 31, 2019 & 2018 was measured using an exit price notion.

Note 18 - Revenue from Contra_3

Note 18 - Revenue from Contracts with Customers - Summary of Revenue (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues		$ 42,179	$ 39,074	$ 32,236
Noninterest income, not in-scope(2)	[1],[2]	14,635	15,529	10,584
Total non-interest income		56,814	54,603	42,820
Fees and Services Charges on Deposit Account [Member]
Revenues		9,394	8,618	7,965
Wealth Management Fees [Member]
Revenues		16,436	15,056	10,529
Other Service Fees [Member]
Revenues	[1]	$ 16,349	$ 15,400	$ 13,742
[1]Other service fees comprise of fees related to letters of credit, wire fees, fees on foreign exchange transactions and other immaterial individual revenue streams.[2]These amounts primarily represent revenue from interest rate swaps, unrealized net gains on equity securities and other miscellaneous income.

Note 19 - Employee Benefit Pl_2

Note 19 - Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands	12 Months Ended			43 Months Ended	255 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	May 31, 2018
Minimum Number of Years Allowed to Participate in Employee Stock Ownership Plan (Year)	2 years
Stock Issued During Period, Shares, Employee Stock Ownership Plan (in shares)	18,808	18,338	32,128
Stock Issued During Period, Value, Employee Stock Ownership Plan	$ 814	$ 781	$ 818
Employee Stock Ownership Plan (ESOP), Number of Allocated Shares (in shares)	29,363	47,617	33,629	47,617
Employee Stock Ownership Plan (ESOP), Shares in ESOP, Total (in shares)	705,815
Percentage of Outstanding Common Stock under Employee Stock Ownership Plan	1%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent					75%
Defined Contribution Plan, Employers Matching Contribution, Vesting Percentage, Less Than Two Years of Service					0%
Defined Contribution Plan, Employers Matching Contribution, Vesting Percentage, After Five Years of Service					100%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match				100%
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay				5%
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 3,900	$ 3,600	$ 3,700
Percentage of Participant Borrowing Capacity of Vested Amount	50%
Cash Surrender Value of Life Insurance	$ 49,900	$ 52,000		$ 52,000
Maximum [Member]
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Employer Cash Payments Used for Debt Service	50
Minimum [Member]
Employee Stock Ownership Plan (ESOP), Debt Structure, Direct Loan, Employer Cash Payments Used for Debt Service	$ 1

Note 20 - Equity Incentive Pl_3

Note 20 - Equity Incentive Plans (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement, Expense	$ 7
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total	$ 9	$ 8.6
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)	1 year 8 months 12 days
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Expense	$ 7	$ 6	$ 5.6
Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	3 years
Performance-based Restricted Stock Units [Member] | Minimum [Member] | Share-Based Payment Arrangement, Tranche One [Member]
Performance-based Restricted Stock Units, Number of Shares That May Vest, Percentage of Target	0%
Performance-based Restricted Stock Units [Member] | Maximum [Member] | Share-Based Payment Arrangement, Tranche One [Member]
Performance-based Restricted Stock Units, Number of Shares That May Vest, Percentage of Target	150%
2005 Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)	1,658,201

Note 20 - Equity Incentive Pl_4

Note 20 - Equity Incentive Plans - Restricted Stock Units (Details) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Time-based Restricted Stock Units [Member]
Balance (in shares)	235,944	292,670	273,200
Balance, weighted-average grant date fair value (in dollars per share)	$ 32.38	$ 33.37	$ 35.90
Granted (in shares)	67,652	63,467	110,495
Granted, weighted-average grant date fair value (in dollars per share)	$ 46.69	$ 41.18	$ 21.79
Vested (in shares)	(89,386)	(96,869)	(80,654)
Vested, weighted-average grant date fair value (in dollars per share)	$ 40.92	$ 41.72	$ 25.34
Forfeited (in shares)	(12,151)	(23,324)	(10,371)
Forfeited, weighted-average grant date fair value (in dollars per share)	$ 34.07	$ 29.92	$ 39.04
Balance (in shares)	202,059	235,944	292,670
Balance, weighted-average grant date fair value (in dollars per share)	$ 33.29	$ 32.38	$ 33.37
Performance-based Restricted Stock Units [Member]
Balance (in shares)	332,506	302,802	297,744
Balance, weighted-average grant date fair value (in dollars per share)	$ 31.82	$ 32.55	$ 32.65
Granted (in shares)	112,393	113,764	212,369
Granted, weighted-average grant date fair value (in dollars per share)	$ 40.24	$ 37.13	$ 22.96
Vested (in shares)	(81,934)	(76,292)	(193,240)
Vested, weighted-average grant date fair value (in dollars per share)	$ 44.52	$ 41.69	$ 21.68
Forfeited (in shares)	0	(7,768)	(14,071)
Forfeited, weighted-average grant date fair value (in dollars per share)	$ 0	$ 40.85	$ 39.08
Balance (in shares)	362,965	332,506	302,802
Balance, weighted-average grant date fair value (in dollars per share)	$ 31.56	$ 31.82	$ 32.55

Note 21 - Condensed Financial_3

Note 21 - Condensed Financial Information of Cathay General Bancorp - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	May 31, 2014
Assets
Cash pledged as margin for interest rate swaps	$ 88,900	$ 24,300
Equity securities	22,158	22,319
Other assets	250,069	195,403
Total assets	21,947,976	20,886,723
Liabilities
Junior subordinated debt	119,136	119,136			$ 119,100
Other liabilities	307,031	180,543
Total liabilities	19,473,936	18,440,472
Commitments and contingencies
Stockholders' equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 91,090,614 issued and 72,742,151 outstanding at December 31, 2022, and 90,871,860 issued and 75,750,862 outstanding at December 31, 2021.	911	909
Additional paid-in-capital	981,119	972,474
Accumulated other comprehensive income/(loss), net	(102,295)	(3,065)
Retained earnings	2,244,856	1,985,168
Treasury stock, at cost (18,348,463 shares at December 31, 2022, and 15,120,998 shares at December 31, 2021)	(650,551)	(509,235)
Total equity	2,474,040	2,446,251	$ 2,418,144	$ 2,294,283
Total liabilities and equity	21,947,976	20,886,723
Parent Company [Member]
Assets
Cash	14,902	19,629
Cash pledged as margin for interest rate swaps	0	1,071
Short-term certificates of deposit	334	333
Equity securities	16,360	15,627
Other assets	4,385	4,691
Total assets	2,603,011	2,573,008
Liabilities
Junior subordinated debt	119,136	119,136
Other liabilities	9,835	7,621
Total liabilities	128,971	126,757
Commitments and contingencies
Stockholders' equity
Common stock, $0.01 par value, 100,000,000 shares authorized, 91,090,614 issued and 72,742,151 outstanding at December 31, 2022, and 90,871,860 issued and 75,750,862 outstanding at December 31, 2021.	911	909
Additional paid-in-capital	981,119	972,474
Accumulated other comprehensive income/(loss), net	(102,295)	(3,065)
Retained earnings	2,244,856	1,985,168
Treasury stock, at cost (18,348,463 shares at December 31, 2022, and 15,120,998 shares at December 31, 2021)	(650,551)	(509,235)
Total equity	2,474,040	2,446,251
Total liabilities and equity	2,603,011	2,573,008
Parent Company [Member] | Bank Subsidiaries [Member]
Assets
Investment in subsidiaries	2,566,266	2,530,850
Non Bank Subsidiaries [Member] | Bank Subsidiaries [Member]
Assets
Investment in subsidiaries	$ 764	$ 807

Note 21 - Condensed Financial_4

Note 21 - Condensed Financial Information of Cathay General Bancorp - Balance Sheets (Details) (Parentheticals) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	91,090,614	90,871,860
Common stock, shares outstanding (in shares)	72,742,151	75,750,862
Treasury stock shares (in shares)	18,348,463	15,120,998
Parent Company [Member]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	91,090,614	90,871,860
Common stock, shares outstanding (in shares)	72,742,151	75,750,862
Treasury stock shares (in shares)	18,348,463	15,120,998

Note 21 - Condensed Financial_5

Note 21 - Condensed Financial Information of Cathay General Bancorp - Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest expense	$ 117,584	$ 68,756	$ 148,464
Non-interest expense	303,432	286,523	283,465
Income before income tax expense	472,536	381,843	253,965
Income tax expense	111,894	83,539	25,105
Net income	360,642	298,304	228,860
Parent Company [Member]
Cash dividends from Cathay Bank	232,773	230,000	146,000
Interest income	30	36	49
Interest expense	5,560	5,773	5,906
Non-interest Income/(loss)	1,018	3,117	(435)
Non-interest expense	3,937	3,224	4,846
Income before income tax expense	224,324	224,156	134,862
Income tax expense	(2,885)	(1,810)	(3,692)
Income before undistributed earnings of subsidiaries	227,209	225,966	138,554
Undistributed earnings of subsidiary	133,433	72,338	90,306
Net income	$ 360,642	$ 298,304	$ 228,860

Note 21 - Condensed Financial_6

Note 21 - Condensed Financial Information of Cathay General Bancorp - Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income	$ 360,642	$ 298,304	$ 228,860
Write-downs on venture capital and other investments	42,065	45,447	58,131
Net change in accrued interest receivable and other assets	(80,411)	(34,196)	(21,247)
Net change in other liabilities	107,467	2,403	(18,948)
Net cash provided by operating activities	467,390	334,317	319,955
Cash Flows from Investing Activities
Proceeds from sale of equity securities	553	0	3,112
Net cash used for investing activities	(1,849,433)	(859,924)	(242,204)
Cash Flows from Financing Activities
Repayment of long-term debt	0	0	(7,663)
Cash dividends paid	(100,955)	(99,322)	(98,688)
Taxes paid related to net share settlement of RSUs	(2,905)	(2,632)	(1,911)
Purchase of treasury stock	(141,316)	(167,104)	(23,593)
Net cash provided by financing activities	94,741	1,554,233	749,549
(Decrease)/Increase in cash, cash equivalents, and restricted cash	(1,287,302)	1,028,626	827,300
Cash, cash equivalents, and restricted cash, beginning of the year	2,449,704	1,421,078	593,778
Cash, cash equivalents, and restricted cash, end of the period	1,162,402	2,449,704	1,421,078
Parent Company [Member]
Cash Flows from Operating Activities
Net income	360,642	298,304	228,860
Equity in undistributed earnings of subsidiaries	(133,433)	(72,338)	(90,306)
Loss/(gain) on equity securities	(733)	(122)	641
Write-downs on venture capital and other investments	268	73	107
(Gain)/loss in fair value of warrants	(27)	0	18
Stock issued to directors as compensation	849	850	800
Net change in accrued interest receivable and other assets	(434)	1,918	(1,182)
Net change in other liabilities	8,532	4,934	(9,853)
Net cash provided by operating activities	235,664	233,619	129,085
Cash Flows from Investing Activities
Proceeds from liquidation of subsidiary	0	0	2,399
Proceeds from sale of equity securities	0	0	3,112
Venture capital and other investments	(5)	357	116
Net cash used for investing activities	(5)	357	5,627
Cash Flows from Financing Activities
Repayment of long-term debt	0	0	(7,644)
Cash dividends paid	(100,955)	(99,322)	(98,688)
Proceeds from shares issued under the Dividend Reinvestment Plan	3,719	3,563	9,777
Taxes paid related to net share settlement of RSUs	(2,905)	(2,632)	(1,911)
Purchase of treasury stock	(141,316)	(167,104)	(23,593)
Net cash provided by financing activities	(241,457)	(265,495)	(122,059)
(Decrease)/Increase in cash, cash equivalents, and restricted cash	(5,798)	(31,519)	12,653
Cash, cash equivalents, and restricted cash, beginning of the year	20,700	52,219	39,566
Cash, cash equivalents, and restricted cash, end of the period	$ 14,902	$ 20,700	$ 52,219

Note 22 - Dividend Reinvestme_2

Note 22 - Dividend Reinvestment Plan (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock Issued During Period, Shares, Dividend Reinvestment Plan (in shares)	86,501	84,011	358,157
Stock Issued During Period, Value, Dividend Reinvestment Plan	$ 3,719	$ 3,563	$ 9,777

Note 23 - Regulatory Matters (D

Note 23 - Regulatory Matters (Details Textual)	Dec. 31, 2022	Dec. 31, 2021
Common Equity, Tier One Risk Based Capital Required to Be Well Capitalized to Risk Weighted Assets	6.50%	6.50%
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	0.08	0.0800
Capital Required to be Well Capitalized to Risk Weighted Assets	0.10	0.1000
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	0.05	0.0500

Note 23 - Regulatory Matters -

Note 23 - Regulatory Matters - Capital and Leverage Ratios (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Common Equity Tier 1 to Risk-Weighted Assets, Actual amount	$ 2,276,830,000	$ 2,137,925,000
Common Equity Tier 1 to Risk-Weighted Assets, Actual ratio	12.75%	13.32%
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required	$ 1,250,461,000	$ 1,123,721,000
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required, Ratio	7%	7%
Common Equity Tier 1 to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,161,142,000	$ 1,043,455,000
Common Equity Tier 1 to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets, Actual amount	$ 2,276,830,000	$ 2,137,925,000
Tier 1 Capital to Risk-Weighted Assets, Actual ratio	0.1275	0.1332
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required	$ 1,518,417,000	$ 1,364,519,000
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required, Ratio	8.50%	8.50%
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,429,098,000	$ 1,284,253,000
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	0.08	0.0800
Total Capital to Risk-Weighted Assets, Actual amount	$ 2,432,045,000	$ 2,281,182,000
Total Capital to Risk-Weighted Assets, Actual ratio	0.1361	0.1421
Total Capital to Risk-Weighted Assets, Minimum Capital Required	$ 1,875,691,000	$ 1,685,582,000
Total Capital to Risk-Weighted Assets, Minimum Capital Required, Ratio	10.50%	10.50%
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,786,373,000	$ 1,605,316,000
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	0.10	0.1000
Leverage Ratio, Actual amount	$ 2,276,830,000	$ 2,137,925,000
Leverage Ratio, Actual ratio	0.1053	0.1082
Leverage Ratio, Minimum Capital Required	$ 864,918,000	$ 790,430,000
Leverage Ratio Minimum Capital Required, Ratio	0.0400	0.0400
Leverage Ratio, Required to be Considered Well Capitalized	$ 1,081,148,000	$ 988,037,000
Leverage Ratio Required to be Considered Well Capitalized, Ratio	0.05	0.0500
Bank [Member]
Common Equity Tier 1 to Risk-Weighted Assets, Actual amount	$ 2,182,066,000	$ 2,056,601,000
Common Equity Tier 1 to Risk-Weighted Assets, Actual ratio	12.21%	12.80%
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required	$ 1,250,914	$ 1,124,381
Common Equity Tier 1 to Risk-Weighted Assets, Minimum Capital Required, Ratio	7%	7%
Common Equity Tier 1 to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,161,563,000	$ 1,044,068,000
Common Equity Tier 1 to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	6.50%	6.50%
Tier 1 Capital to Risk-Weighted Assets, Actual amount	$ 2,182,066,000	$ 2,056,601,000
Tier 1 Capital to Risk-Weighted Assets, Actual ratio	0.1221	0.1280
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required	$ 1,518,967,000	$ 1,365,320,000
Tier 1 Capital to Risk-Weighted Assets, Minimum Capital Required, Ratio	8.50%	8.50%
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,429,616,000	$ 1,285,007,000
Tier 1 Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	0.0800	0.0800
Total Capital to Risk-Weighted Assets, Actual amount	$ 2,452,781,000	$ 2,315,358,000
Total Capital to Risk-Weighted Assets, Actual ratio	0.1373	0.1441
Total Capital to Risk-Weighted Assets, Minimum Capital Required	$ 1,876,371,000	$ 1,686,572,000
Total Capital to Risk-Weighted Assets, Minimum Capital Required, Ratio	10.50%	10.50%
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized	$ 1,787,020,000	$ 1,606,259,000
Total Capital to Risk-Weighted Assets, Required to be Considered Well Capitalized, Ratio	0.1000	0.1000
Leverage Ratio, Actual amount	$ 2,182,066,000	$ 2,056,601,000
Leverage Ratio, Actual ratio	0.1008	0.1040
Leverage Ratio, Minimum Capital Required	$ 865,470,000	$ 791,226,000
Leverage Ratio Minimum Capital Required, Ratio	0.0400	0.0400
Leverage Ratio, Required to be Considered Well Capitalized	$ 1,081,838,000	$ 989,033,000
Leverage Ratio Required to be Considered Well Capitalized, Ratio	0.0500	0.0500

Note 24 - Balance Sheet Offse_3

Note 24 - Balance Sheet Offsetting - Financial Instruments That Are Eligible for Offset in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivative assets, gross	$ 90,451	$ 10,090
Derivatives, Gross Amounts Offset in the Balance Sheet	46,008
Derivative assets, net	44,443	10,090
Derivatives, collateral posted	42,930
Derivative assets not offset	1,513	10,090
Derivative liabilities, gross	51,864	15,748
Derivative liabilities, net	51,864	12,642
Derivatives	$ 51,864	12,642
Derivatives, Gross Amounts Offset in the Balance Sheet		$ (3,106)

Note 25 - Subsequent Events (De

Note 25 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	7 Months Ended	12 Months Ended
	Feb. 21, 2023	Feb. 16, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Treasury Stock, Shares, Acquired (in shares)			704,927	2,522,538	3,227,465
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)			$ 46.67	$ 42.98	$ 43.79
Treasury Stock, Value, Acquired, Cost Method			$ 32,900	$ 108,400	$ 141,315	$ 167,104	$ 23,593
Subsequent Event [Member]
Dividends Payable, Amount Per Share (in dollars per share)		$ 0.34
Treasury Stock, Shares, Acquired (in shares)	2,897,628
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 43.14
Treasury Stock, Value, Acquired, Cost Method	$ 125,000
Dividends Payable, Date to be Paid		Mar. 09, 2023
Dividends Payable, Date of Record		Feb. 27, 2023