Westamerica Bancorporation (WABC) 10-Q 4 Aug 21 2021 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2021	Jul. 28, 2021
Document Information [Line Items]
Entity Central Index Key	0000311094
Entity Registrant Name	WESTAMERICA BANCORPORATION
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-09383
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	94-2156203
Entity Address, Address Line One	1108 FIFTH AVENUE
Entity Address, City or Town	SAN RAFAEL
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94901
City Area Code	707
Local Phone Number	863-6000
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	WABC
Security Exchange Name	NASDAQ
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
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		26,865,783

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Assets:
Cash and due from banks	$ 939,929	$ 621,275
Debt securities available for sale	4,304,162	4,063,185
Debt securities held to maturity, net of allowance for credit losses of $9 at June 30, 2021 and $9 at December 31, 2020 (Fair value of $424,599 at June 30, 2021 and $529,678 at December 31, 2020)	414,413	515,589
Loans	1,194,834	1,256,243
Allowance for credit losses on loans	(23,737)	(23,854)
Loans, net of allowance for credit losses on loans	1,171,097	1,232,389
Premises and equipment, net	32,080	32,813
Identifiable intangibles, net	967	1,104
Goodwill	121,673	121,673
Other assets	163,458	159,903
Total Assets	7,147,779	6,747,931
Liabilities:
Noninterest-bearing deposits	2,872,920	2,725,177
Interest-bearing deposits	3,203,469	2,962,802
Total deposits	6,076,389	5,687,979
Short-term borrowed funds	90,043	102,545
Other liabilities	139,151	112,598
Total Liabilities	6,305,583	5,903,122
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized: 150,000 shares Issued and outstanding: 26,865 at June 30, 2021 and 26,807 at December 31, 2020	470,330	466,006
Deferred compensation	35	35
Accumulated other comprehensive income	86,921	114,412
Retained earnings	284,910	264,356
Total Shareholders' Equity	842,196	844,809
Total Liabilities and Shareholders' Equity	$ 7,147,779	$ 6,747,931

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt securities held to maturity, allowance for credit losses	$ 9	$ 9
Debt securities held to maturity, fair value	$ 424,599	$ 529,678
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	150,000	150,000
Common stock, issued (in shares)	26,865	26,807
Common stock, outstanding (in shares)	26,865	26,807

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Interest and Loan Fee Income:
Loans	$ 15,064	$ 15,278	$ 29,645	$ 29,087
Equity securities	110	103	220	206
Debt securities available for sale	26,481	22,429	51,370	43,744
Debt securities held to maturity	2,362	3,616	4,960	7,524
Interest-bearing cash	259	113	397	969
Total Interest and Loan Fee Income	44,276	41,539	86,592	81,530
Interest Expense:
Deposits	466	424	925	858
Short-term borrowed funds	18	10	34	18
Other borrowed funds	0	1	0	1
Total Interest Expense	484	435	959	877
Net Interest and Loan Fee Income	43,792	41,104	85,633	80,653
Provision for credit losses	0	0	0	4,300
Net Interest and Loan Fee Income After Provision for Credit Losses	43,792	41,104	85,633	76,353
Noninterest Income:
Securities gains	34	71	34	71
Other noninterest income	662	821	1,445	2,408
Total Noninterest Income	11,032	9,554	21,221	21,202
Noninterest Expense:
Salaries and related benefits	12,097	12,900	24,762	25,918
Occupancy and equipment	4,808	4,791	9,688	9,723
Outsourced data processing services	2,425	2,324	4,815	4,729
Professional fees	830	643	1,772	1,032
Courier service	567	508	1,071	999
Amortization of identifiable intangibles	68	73	137	146
Other noninterest expense	3,496	3,515	6,952	6,871
Total Noninterest Expense	24,291	24,754	49,197	49,418
Income Before Income Taxes	30,533	25,904	57,657	48,137
Provision for income taxes	7,954	6,342	14,931	11,613
Net Income	$ 22,579	$ 19,562	$ 42,726	$ 36,524
Average Common Shares Outstanding (in shares)	26,865	26,935	26,843	27,001
Average Diluted Common Shares Outstanding (in shares)	26,887	26,951	26,865	27,024
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.84	$ 0.72	$ 1.59	$ 1.35
Diluted earnings (in dollars per share)	0.84	0.72	1.59	1.35
Dividends paid (in dollars per share)	$ 0.41	$ 0.41	$ 0.82	$ 0.82
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 3,235	$ 3,151	$ 6,539	$ 7,399
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	3,279	2,277	5,839	4,635
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,791	1,459	3,392	2,927
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	827	714	1,628	1,491
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	618	518	1,219	1,097
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	491	420	960	926
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 95	$ 123	$ 165	$ 248

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income	$ 22,579	$ 19,562	$ 42,726	$ 36,524
Other comprehensive income:
Changes in net unrealized gains on debt securities available for sale	25,618	132,902	(38,996)	96,158
Deferred tax (benefit) expense	(7,574)	(39,291)	11,529	(28,427)
Reclassification of gains included in net income	(34)	(71)	(34)	(71)
Deferred tax expense on gains included in net income	10	21	10	21
Changes in net unrealized gains on debt securities available for sale, net of tax	18,020	93,561	(27,491)	67,681
Total comprehensive income	$ 40,599	$ 113,123	$ 15,235	$ 104,205

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]Deferred Compensation, Share-based Payments [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Common Stock [Member]	Deferred Compensation, Share-based Payments [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2019			27,062					27,062
Balance at Dec. 31, 2019	$ 52	$ 52	$ 465,460	$ 771	$ 26,051	$ 239,187	$ 731,469	$ 465,460	$ 771	$ 26,051	$ 239,135	$ 731,417
Net income for the period											36,524	36,524
Other comprehensive income (loss)										67,681		67,681
Exercise of stock options (in shares)								53
Exercise of stock options								$ 2,838				2,838
Stock based compensation								1,050				1,050
Stock awarded to employees								$ 66				66
Dividends											(22,220)	(22,220)
Restricted stock activity (in shares)								10
Restricted stock activity								$ 1,270	(736)			534
Retirement of common stock (in shares)								(193)
Retirement of common stock								$ (3,333)			(6,533)	(9,866)
Stock awarded to employees (in shares)								1
Balance (in shares) at Jun. 30, 2020								26,933
Balance at Jun. 30, 2020								$ 467,351	35	93,732	246,958	808,076
Balance (in shares) at Mar. 31, 2020								26,932
Balance at Mar. 31, 2020								$ 465,701	771	171	238,903	705,546
Net income for the period											19,562	19,562
Other comprehensive income (loss)										93,561		93,561
Exercise of stock options (in shares)								13
Exercise of stock options								$ 572				572
Stock based compensation								525				525
Stock awarded to employees								45				45
Dividends											(11,116)	(11,116)
Restricted stock activity								$ 736	(736)
Retirement of common stock (in shares)								(13)
Retirement of common stock								$ (228)			(391)	(619)
Stock awarded to employees (in shares)								1
Balance (in shares) at Jun. 30, 2020								26,933
Balance at Jun. 30, 2020								$ 467,351	35	93,732	246,958	808,076
Balance (in shares) at Dec. 31, 2020								26,807
Balance at Dec. 31, 2020								$ 466,006	35	114,412	264,356	844,809
Net income for the period											42,726	42,726
Other comprehensive income (loss)										(27,491)		(27,491)
Exercise of stock options (in shares)								53
Exercise of stock options								$ 3,017				3,017
Stock based compensation								776				776
Stock awarded to employees								$ 71				71
Dividends											(22,006)	(22,006)
Restricted stock activity (in shares)								9
Restricted stock activity								$ 526				526
Retirement of common stock (in shares)								(4)
Retirement of common stock								$ (66)			(166)	(232)
Balance (in shares) at Jun. 30, 2021								26,865
Balance at Jun. 30, 2021								$ 470,330	35	86,921	284,910	842,196
Balance (in shares) at Mar. 31, 2021								26,864
Balance at Mar. 31, 2021								$ 469,850	35	68,901	273,346	812,132
Net income for the period											22,579	22,579
Other comprehensive income (loss)										18,020		18,020
Exercise of stock options (in shares)								1
Exercise of stock options								$ 57				57
Stock based compensation								408				408
Stock awarded to employees								$ 15				15
Dividends											(11,015)	(11,015)
Balance (in shares) at Jun. 30, 2021								26,865
Balance at Jun. 30, 2021								$ 470,330	$ 35	$ 86,921	$ 284,910	$ 842,196

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Dividends per share (in dollars per share)	$ 0.41	$ 0.41	$ 0.82	$ 0.82

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net income	$ 42,726	$ 36,524
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion	7,363	12,361
Provision for credit losses	0	4,300
Stock option compensation expense	776	1,050
Securities gains	(34)	(71)
Amortization of deferred loan fees	(3,306)	(1,057)
Interest income receivable	(1,771)	(3,526)
Income taxes payable	361	(585)
Deferred income taxes	(1,429)	478
Other assets	(1,483)	(12,478)
Interest expense payable	43	52
Other liabilities	2,220	28,875
Net Cash Provided by Operating Activities	45,466	65,923
Investing Activities:
Net repayments (disbursements) of loans	64,786	(189,704)
Purchases of debt securities available for sale	(1,013,193)	(869,942)
Proceeds from sale/maturity/calls of debt securities available for sale	766,190	343,170
Proceeds from maturity/calls of debt securities held to maturity	99,518	97,555
Purchases of premises and equipment	(800)	(1,389)
Net Cash Used in Investing Activities	(83,499)	(620,310)
Financing Activities:
Deposits	388,410	655,791
Short-term borrowings	(12,502)	55,243
Exercise of stock options	3,017	2,838
Retirement of common stock	(232)	(9,866)
Common stock dividends paid	(22,006)	(22,220)
Net Cash Provided by Financing Activities	356,687	681,786
Net Change In Cash and Due from Banks	318,654	127,399
Cash and Due from Banks at Beginning of Period	621,275	373,421
Cash and Due from Banks at End of Period	939,929	500,820
Supplemental disclosure of non cash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	4,918	1,639
Securities purchases pending settlement	64,993	13,632
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	3,241	3,276
Interest paid for the period	916	825
Income tax payments for the period	$ 16,000	$ 11,900

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1: The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the three six June 30, 2021 not 10 December 31, 2020.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2: The most significant accounting policies followed by the Company are presented in Note 1 10 December 31, 2020. 20 19” 1A 10 December 31, 2020 may 10 Application of accounting principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not third Debt Securities. Debt securities consist of U.S. Treasury, government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, collateralized loan obligations and commercial paper. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one three not not The Company utilizes third 1 2 third one third third not 3 The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12 15 To the extent that debt securities in the held-to-maturity portfolio share common risk characteristics, estimated expected credit losses are calculated in a manner like that used for loans held for investment. That is, for pools of such securities with common risk characteristics, the historical lifetime probability of default and severity of loss in the event of default is derived or obtained from external sources and adjusted for the expected effects of reasonable and supportable forecasts over the expected lives of the securities on those historical credit losses. Expected credit loss on each security in the held-to-maturity portfolio that do not may not Available for sale debt securities in unrealized loss positions are evaluated for credit related losses at least quarterly. For available for sale debt securities, a decline in fair value due to credit losses results in recording an allowance for credit losses to the extent the fair value is less than the amortized cost basis. Declines in fair value that have not not not not If the Company intends to sell a debt security or more likely than not Purchase premiums are amortized to the earliest call date and purchase discounts are amortized to maturity as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale debt securities are included in earnings using the specific identification method. Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances and included in other assets. Loans which are more than 90 none 120 A troubled debt restructuring (“TDR”) occurs when the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower it would not may not 1 2 not 30 December 31, 2019; 3 March 1, 2020, 60 December 31, 2020. 2021, may not January 1, 2022. Allowance for Credit Losses. The Company extends loans to commercial and consumer customers primarily in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loss. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of these financial statements requires Management to estimate the amount of expected losses over the expected contractual life of our existing loan portfolio and establish an allowance for credit losses. Loan agreements generally include a maturity date, and the Company considers the contractual life of a loan agreement to extend from the date of origination to the contractual maturity date. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans are charged to the allowance for credit losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for expected losses based on historical loss rates adjusted for current and expected conditions over a forecast period. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, or credit protection agreements and other factors. Loans that share common risk characteristics are segregated into pools based on common characteristics, which is primarily determined by loan, borrower, or collateral type. Historical loss rates are determined for each pool. For consumer installment loans, primarily secured by automobiles, historical loss rates are determined using a vintage methodology, which tracks losses based on period of origination. For commercial, construction, and commercial real estate, historical loss rates are determined using an open pool methodology where losses are tracked over time for all loans included in the pool at the historical measurement date. Historical loss rates are adjusted for factors that are not not two not not two Loans that do not not Accrued interest is recorded in other assets and is excluded from the estimation of expected credit loss. Accrued interest is reversed through interest income when amounts are determined to be uncollectible, which generally occurs when the underlying receivable is placed on nonaccrual status or charged off. Liability for Off-Balance Sheet Credit Exposures. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. The Company maintains a separate allowance for credit losses from off-balance-sheet credit exposures, which is included within other liabilities on the consolidated statements of financial condition. Increases or reductions to the Company’s allowance for credit losses from off-balance sheet credit exposures are recorded in other expenses. Management estimates the amount of expected losses by estimating expected usage exposures that are not No may Recently Adopted Accounting Standards In the six June 30, 2021, FASB ASU 2019 12 Income Taxes (Topic 740 December 2019. 740 December 15, 2020, January 1, 2021 not Recently Issued Accounting Standards FASB ASU 2020 04 Reference Rate Reform (Topic 848 March 2020. no not 2020 04 2020 04 March 12, 2020 December 31, 2022. may 2020 04 January 1, 2020, March 12, 2020, not

Note 3 - Investment Securities

Note 3 - Investment Securities	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 3: Effective January 1, 2020, FASB ASU 2016 13, Financial Instruments Credit Losses (Topic 326 fourth December 31, 2020, An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of cumulative other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, before allowance for credit losses of $9 At June 30, 2021 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 492,463 $ 17,997 $ - $ 510,460 Securities of U.S. Government entities 137 - - 137 Obligations of states and political subdivisions 100,115 4,490 (2 ) 104,603 Corporate securities 2,497,357 101,466 (1,973 ) 2,596,850 Collateralized loan obligations 1,090,686 2,246 (820 ) 1,092,112 Total debt securities available for sale 4,180,758 126,199 (2,795 ) 4,304,162 Debt securities held to maturity Agency residential MBS 186,702 5,309 (17 ) 191,994 Non-agency residential MBS 1,199 9 (12 ) 1,196 Obligations of states and political subdivisions 226,521 4,897 - 231,418 Total debt securities held to maturity 414,422 10,215 (29 ) 424,608 Total $ 4,595,180 $ 136,414 $ (2,824 ) $ 4,728,770 At December 31, 2020 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential MBS $ 630,174 $ 22,779 $ (1 ) $ 652,952 Securities of U.S. Government entities 154 - - 154 Obligations of states and political subdivisions 105,679 5,332 (1 ) 111,010 Corporate securities 1,986,995 131,025 (42 ) 2,117,978 Commercial paper 24,983 7 - 24,990 Collateralized loan obligations 1,152,766 4,433 (1,098 ) 1,156,101 Total debt securities available for sale 3,900,751 163,576 (1,142 ) 4,063,185 Debt securities held to maturity Agency residential MBS 240,332 6,852 (32 ) 247,152 Non-agency residential MBS 1,344 26 - 1,370 Obligations of states and political subdivisions 273,922 7,243 - 281,165 Total debt securities held to maturity 515,598 14,121 (32 ) 529,687 Total $ 4,416,349 $ 177,697 $ (1,174 ) $ 4,592,872 The amortized cost and fair value of debt securities by contractual maturity are shown in the following tables at the dates indicated: At June 30, 2021 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 283,566 $ 286,689 $ 36,764 $ 36,914 Over 1 to 5 years 785,821 829,793 130,690 133,710 Over 5 to 10 years 2,185,183 2,241,533 59,067 60,794 Over 10 years 433,725 435,687 - - Subtotal 3,688,295 3,793,702 226,521 231,418 MBS 492,463 510,460 187,901 193,190 Total $ 4,180,758 $ 4,304,162 $ 414,422 $ 424,608 At December 31, 2020 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 212,140 $ 213,715 $ 54,526 $ 54,927 Over 1 to 5 years 922,170 974,438 129,786 133,195 Over 5 to 10 years 1,767,747 1,851,184 89,610 93,043 Over 10 years 368,520 370,896 - - Subtotal 3,270,577 3,410,233 273,922 281,165 MBS 630,174 652,952 241,676 248,522 Total $ 3,900,751 $ 4,063,185 $ 515,598 $ 529,687 Expected maturities of mortgage-related securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates may June 30, 2021 December 31, 2020, An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At June 30, 2021 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 85 $ - 1 $ 12 $ - 2 $ 97 $ - Securities of U.S. - - - 1 137 - 1 137 - Obligations of states 3 1,429 (2 ) - - - 3 1,429 (2 ) Corporate securities 10 120,729 (1,917 ) 1 14,945 (56 ) 11 135,674 (1,973 ) Collateralized loan 31 254,066 (820 ) - - - 31 254,066 (820 ) Total 45 $ 376,309 $ (2,739 ) 3 $ 15,094 $ (56 ) 48 $ 391,403 $ (2,795 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At June 30, 2021 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 2 $ 146 $ 0 3 $ 643 $ (17 ) 5 $ 789 $ (17 ) Non-agency residential 1 648 (12 ) - - - 1 648 (12 ) Total 3 $ 794 $ (12 ) 3 $ 643 $ (17 ) 6 $ 1,437 $ (29 ) Based upon the most recent evaluation, the unrealized losses on the Company’s debt securities available for sale were most likely caused by market conditions for these types of investments, particularly changes in risk-free interest rates and/or market bid-ask spreads. The Company does not not not not June 30, 2021. The fair values of debt securities available for sale could decline in the future if the general economy deteriorates, inflation increases, credit ratings decline, the issuer’s financial condition deteriorates, or the liquidity for debt securities declines. As a result, significant credit losses on debt securities available for sale may As of June 30, 2021 December 31, 2020, An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At December 31, 2020 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 96 $ (1 ) 1 $ 17 $ - 2 $ 113 $ (1 ) Securities of U.S. 1 154 - - - - 1 154 - Obligations of states 2 692 (1 ) - - - 2 692 (1 ) Corporate securities - - - 1 14,963 (42 ) 1 14,963 (42 ) Collateralized loan 36 268,584 (1,098 ) - - - 36 268,584 (1,098 ) Total 40 $ 269,526 $ (1,100 ) 2 $ 14,980 $ (42 ) 42 $ 284,506 $ (1,142 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At December 31, 2020 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 3 $ 377 $ (1 ) 3 $ 788 $ (31 ) 6 $ 1,165 $ (32 ) The Company evaluates debt securities on a quarterly basis including changes in security ratings issued by rating agencies, changes in the financial condition of the issuer, and, for mortgage-backed and asset-backed securities, collateral levels, delinquency and loss information with respect to the underlying collateral, changes in the levels of subordination for the Company’s particular position within the repayment structure and remaining credit enhancement as compared to expected credit losses of the security. Substantially all of these securities continue to be investment grade rated by a major rating agency. One corporate bond with an amortized cost of $15.0 million and a fair value of $14.95 million at June 30, 2021, July 2021. The following table presents the activity in the allowance for credit losses for debt securities held to maturity: For the Six Months Ended June 30, 2021 2020 (In thousands) Allowance for credit losses: Balance, end of prior period $ 9 $ - Impact of adopting ASU 2016-13 - 16 Beginning balance 9 16 Provision - - Chargeoffs - - Recoveries - - Total ending balance $ 9 $ 16 Agency mortgage-backed securities were assigned no The following table summarizes the amortized cost of debt securities held to maturity at June 30, 2021, Credit Risk Profile by Credit Rating At June 30, 2021 AAA/AA/A BBB BB/B/NR Total (In thousands) Agency residential MBS $ 186,702 $ - $ - $ 186,702 Non-agency residential MBS 286 - 913 1,199 Obligations of states and political subdivisions 219,231 690 6,600 226,521 Total $ 406,219 $ 690 $ 7,513 $ 414,422 There were no debt securities held to maturity on nonaccrual status or past due 30 June 30, 2021. The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from federal income tax: For the Three Months For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands) Taxable $ 26,692 $ 22,920 $ 51,890 $ 44,884 Tax-exempt from regular federal income tax 2,261 3,228 4,660 6,590 Total interest income from investment securities $ 28,953 $ 26,148 $ 56,550 $ 51,474

Note 4 - Loans, Allowance for C

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 4: A summary of the major categories of loans outstanding is shown in the following tables at the dates indicated. At June 30, At December 31, 2021 2020 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 165,075 $ 186,945 Other 188,399 207,861 Total Commercial 353,474 394,806 Commercial Real Estate 542,627 564,300 Construction 113 129 Residential Real Estate 20,431 23,471 Consumer Installment & Other 278,189 273,537 Total $ 1,194,834 $ 1,256,243 PPP loans are 100% not Allowance for Credit Losses For the Three Months Ended June 30, 2021 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 9,554 $ 5,505 $ 6 $ 43 $ 8,375 $ 23,483 (Reversal) provision (2,771 ) 1,235 (1 ) 14 1,523 - Chargeoffs - - - - (331 ) (331 ) Recoveries 75 12 - - 498 585 Total allowance for credit losses $ 6,858 $ 6,752 $ 5 $ 57 $ 10,065 $ 23,737 Allowance for Credit Losses For the Six Months Ended June 30, 2021 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 9,205 $ 5,660 $ 6 $ 47 $ 8,936 $ 23,854 (Reversal) provision (2,435 ) 1,068 (1 ) 10 1,358 - Chargeoffs - - - - (1,260 ) (1,260 ) Recoveries 88 24 - - 1,031 1,143 Total allowance for credit losses $ 6,858 $ 6,752 $ 5 $ 57 $ 10,065 $ 23,737 Allowance for Credit Losses For the Three Months Ended June 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 8,336 $ 4,753 $ 107 $ 70 $ 11,538 $ 24,804 (Reversal) provision (357 ) (142 ) (100 ) (13 ) 612 - Chargeoffs - - - - (804 ) (804 ) Recoveries 93 12 - - 424 529 Total allowance for credit losses $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ 24,529 [The remainder of this page intentionally left blank] Allowance for Credit Losses For the Six Months Ended June 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for credit losses: Balance at beginning of period, prior to adoption of ASU 2016-13 $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Impact of adopting ASU 2016-13 3,385 618 (31 ) (132 ) 1,878 (3,701 ) 2,017 Adjusted beginning balance 8,344 4,682 78 74 8,323 - 21,501 (Reversal) provision (330 ) (84 ) (71 ) (17 ) 4,802 - 4,300 Chargeoffs (178 ) - - - (2,199 ) - (2,377 ) Recoveries 236 25 - - 844 - 1,105 Total allowance for credit losses $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ - $ 24,529 The Company’s customers are small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do not The following summarizes the credit risk profile by internally assigned grade: Credit Risk Profile by Internally Assigned Grade At June 30, 2021 Commercial Commercial Construction Residential Consumer Total (In thousands) Grade: Pass $ 352,791 $ 525,992 $ 113 $ 18,861 $ 275,630 $ 1,173,387 Substandard 683 16,635 - 1,570 1,483 20,371 Doubtful - - - - 797 797 Loss - - - - 279 279 Total $ 353,474 $ 542,627 $ 113 $ 20,431 $ 278,189 $ 1,194,834 Credit Risk Profile by Internally Assigned Grade At December 31, 2020 Commercial Commercial Construction Residential Consumer Total (In thousands) Grade: Pass $ 386,144 $ 545,398 $ 129 $ 22,105 $ 270,925 $ 1,224,701 Substandard 8,662 18,902 - 1,366 1,498 30,428 Doubtful - - - - 543 543 Loss - - - - 571 571 Total $ 394,806 $ 564,300 $ 129 $ 23,471 $ 273,537 $ 1,256,243 [The remainder of this page intentionally left blank] The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status At June 30, 2021 Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 352,911 $ 270 $ 293 $ - $ - $ 353,474 Commercial real estate 537,835 773 602 - 3,417 542,627 Construction 113 - - - - 113 Residential real estate 19,738 263 17 - 413 20,431 Consumer installment and other 274,931 1,869 836 167 386 278,189 Total $ 1,185,528 $ 3,175 $ 1,748 $ 167 $ 4,216 $ 1,194,834 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2020 Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 394,004 $ 713 $ 6 $ - $ 83 $ 394,806 Commercial real estate 560,580 - - - 3,720 564,300 Construction 129 - - - - 129 Residential real estate 22,269 770 271 - 161 23,471 Consumer installment and other 270,240 2,010 472 450 365 273,537 Total $ 1,247,222 $ 3,493 $ 749 $ 450 $ 4,329 $ 1,256,243 There was no allowance for credit losses allocated to loans on nonaccrual status as of June 30, 2021 December 31, 2020. June 30, 2021 December 31, 2020. The following tables provide information on troubled debt restructurings (TDRs): Troubled Debt Restructurings At June 30, 2021 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 3 $ 7,445 $ 4,998 $ - Residential real estate 1 241 176 - Total 4 $ 7,686 $ 5,174 $ - Troubled Debt Restructurings At December 31, 2020 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 6 $ 8,367 $ 6,040 $ - Residential real estate 1 241 181 - Total 7 $ 8,608 $ 6,221 $ - During the three six June 30, 2021 June 30, 2020, not 4013 19 three six June 30, 2021, 4013 90 June 30, 2021, not three six June 30, 2021 June 30, 2020. three six June 30, 2021 June 30, 2020, 12 ninety TDRs of $5,174 thousand included a loan with a balance of $3,120 thousand on non-accrual status at June 30, 2021. December 31, 2020; A loan is considered collateral dependent when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. The following loans were considered collateral dependent at June 30, 2021: no June 30, 2021. December 31, 2020: no December 31, 2020. Based on the most recent analysis performed, the risk category of loans by class of loans is as follows: At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Commercial loans by grade Pass $ 41,570 $ 6,211 $ 11,163 $ 34,282 $ 94,307 $ 137,817 $ 325,350 $ 27,441 $ 352,791 Substandard 36 - - - - 108 144 539 683 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 41,606 $ 6,211 $ 11,163 $ 34,282 $ 94,307 $ 137,925 $ 325,494 $ 27,980 $ 353,474 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade Pass $ 137,062 $ 93,405 $ 82,629 $ 80,577 $ 87,395 $ 44,924 $ 525,992 $ - $ 525,992 Substandard 13,519 255 - 2,029 832 - 16,635 - 16,635 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 150,581 $ 93,660 $ 82,629 $ 82,606 $ 88,227 $ 44,924 $ 542,627 $ - $ 542,627 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Construction loans by grade Pass $ - $ - $ - $ - $ - $ - $ - $ 113 $ 113 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 113 $ 113 [The remainder of this page intentionally left blank] At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Residential Real Estate loans by grade Pass $ 18,861 $ - $ - $ - $ - $ - $ 18,861 $ - $ 18,861 Substandard 1,570 - - - - - 1,570 - 1,570 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 20,431 $ - $ - $ - $ - $ - $ 20,431 $ - $ 20,431 The Company considers the delinquency and nonaccrual status of the consumer loan portfolio and its impact on the allowance for credit losses. The following table presents the amortized cost in consumer installment and other loans based on delinquency and nonaccrual status: At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status Current $ 14,196 $ 15,298 $ 36,279 $ 49,183 $ 73,442 $ 62,030 $ 250,428 $ 24,503 $ 274,931 30-59 days past due 156 63 246 497 644 262 1,868 1 1,869 60-89 days past due 51 59 125 191 274 41 741 95 836 Past due 90 days or more - - 47 75 27 18 167 - 167 Nonaccrual - - - - - - - 386 386 Total $ 14,403 $ 15,420 $ 36,697 $ 49,946 $ 74,387 $ 62,351 $ 253,204 $ 24,985 $ 278,189 There were no loans held for sale at June 30, 2021, December 31, 2020. The Company held no other real estate owned (OREO) at June 30, 2021 December 31, 2020. June 30, 2021 December 31, 2020.

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 5: Under the California Financial Code, credit extended to any one one not not not June 30, 2021, not one June 30, 2021, 4, June 30, 2021 December 31, 2020, no no June 30, 2021,

Note 6 - Other Assets and Other

Note 6 - Other Assets and Other Liabilities	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Other Assets and Liabilities Disclosure [Text Block]	Note 6: Other assets consisted of the following: At June 30, At December 31, 2021 2020 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 158 158 Total cost method equity investments 14,227 14,227 Life insurance cash surrender value 61,755 60,444 Right-of-use asset 20,694 18,832 Limited partnership investments 17,006 18,335 Interest receivable 34,793 33,022 Prepaid assets 3,747 4,572 Other assets 11,236 10,471 Total other assets $ 163,458 $ 159,903 ( 1 A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six The Company owns 211 thousand shares of Visa Inc. class B common stock which have transfer restrictions; the carrying value is $-0- thousand. On September 30, 2019, September 27, 2019 September 27, 2019. June 30, 2021, second 2021. The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At June 30, 2021, December 31, 2020, June 30, 2021, 2021, 2022, 2023, 2024, 2025, 2026, 2027 The amounts recognized in net income for these investments include: For the Three Months Ended For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands) Investment loss included in pre-tax income $ 600 $ 600 $ 1,200 $ 1,200 Tax credits recognized in provision for income taxes 225 225 450 450 Other liabilities consisted of the following: At June 30, At December 31, 2021 2020 (In thousands) Net deferred tax liability $ 12,810 $ 25,778 Operating lease liability 20,694 18,832 Securities purchases pending settlement 64,993 29,000 Other liabilities 40,654 38,988 Total other liabilities $ 139,151 $ 112,598 The net deferred tax liability at June 30, 2021 December 31, 2020 The Company has entered into leases for most branch locations and certain other offices that were classified as operating leases primarily with original terms of five one five not not not June 30, 2021. As of June 30, 2021, June 30, 2021. not June 30, 2021. Total lease costs during the three six June 30, 2021, three six June 30, 2020, not six June 30, 2021 June 30, 2020. The following table summarizes the remaining lease payments of operating lease liabilities: Minimum At June 30, 2021 (In thousands) 2021 $ 3,068 2022 5,649 2023 4,941 2024 3,353 2025 2,162 Thereafter 2,251 Total minimum lease payments 21,424 Less: discount (730 ) Present value of lease liability $ 20,694

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 7: The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not not three six June 30, 2021 December 31, 2020. three six June 30, 2021 December 31, 2020 The carrying values of goodwill were: At June 30, 2021 At December 31, 2020 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At June 30, 2021 At December 31, 2020 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,841 ) $ 56,808 $ (55,704 ) As of June 30, 2021, 2025, Total Core Deposit Intangibles (In thousands) For the six months ended June 30, 2021 (actual) $ 137 Estimate for the remainder of 2021 132 Estimate for year ending December 31, 2022 252 2023 236 2024 222 2025 125

Note 8 - Deposits and Borrowed

Note 8 - Deposits and Borrowed Funds	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 8: The following table provides additional detail regarding deposits. Deposits At June 30, At December 31, 2021 2020 (In thousands) Noninterest-bearing $ 2,872,920 $ 2,725,177 Interest-bearing: Transaction 1,200,634 1,102,601 Savings 1,849,258 1,703,812 Time deposits less than $100 thousand 76,474 79,825 Time deposits $100 thousand through $250 thousand 50,754 49,323 Time deposits more than $250 thousand 26,349 27,241 Total deposits $ 6,076,389 $ 5,687,979 Demand deposit overdrafts of $708 thousand and $682 thousand were included as loan balances at June 30, 2021 December 31, 2020, $100 three six June 30, 2021, three six June 30, 2020, The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At June 30, At December 31, 2021 2020 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 52,266 $ 67,019 Corporate securities 187,252 188,195 Total collateral carrying value $ 239,518 $ 255,214 Total short-term borrowed funds $ 90,043 $ 102,545

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 9: The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Debt securities available for sale are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may In accordance with the Fair Value Measurement and Disclosure topic of the FASB Accounting Standards Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three Level 1 1 Level 2 not 2 Level 3 not The Company relies on independent vendor pricing services to measure fair value for equity securities, debt securities available for sale and debt securities held to maturity. The Company employs three may not The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level 1, 2 3. Assets Recorded at Fair Value on a Recurring Basis The tables below present assets measured at fair value on a recurring basis on the dates indicated. At June 30, 2021 Fair Value Quoted Prices Significant Significant (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 510,460 $ - $ 510,460 $ - Securities of U.S. Government entities 137 - 137 - Obligations of states and political subdivisions 104,603 - 104,603 - Corporate securities 2,596,850 - 2,596,850 - Collateralized loan obligations 1,092,112 - 1,092,112 - Total debt securities available for sale $ 4,304,162 $ - $ 4,304,162 $ - ( 1 no 3 six June 30, 2021. At December 31, 2020 Fair Value Quoted Prices Significant Significant (1) (In thousands) Debt securities available for sale Agency residential MBS $ 652,952 $ - $ 652,952 $ - Securities of U.S. Government entities 154 - 154 - Obligations of states and political subdivisions 111,010 - 111,010 - Corporate securities 2,117,978 - 2,117,978 - Commercial paper 24,990 - 24,990 - Collateralized loan obligations 1,156,101 - 1,156,101 - Total debt securities available for sale $ 4,063,185 $ - $ 4,063,185 $ - ( 1 no 3 December 31, 2020. Assets Recorded at Fair Value on a Nonrecurring Basis The Company may June 30, 2021 December 31, 2020, For the Six Months Ended At June 30, 2021 June 30, 2021 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 3,409 $ - $ - $ 3,409 $ - Residential real estate 175 - - 175 - Total assets measured at fair value on a nonrecurring basis $ 3,584 $ - $ - $ 3,584 $ - For the Year Ended At December 31, 2020 December 31, 2020 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial $ 5,270 $ - $ - $ 5,270 $ - Commercial real estate 3,710 - - 3,710 - Residential real estate 181 - - 181 - Total assets measured at fair value on a nonrecurring basis $ 9,161 $ - $ - $ 9,161 $ - Level 3 third not not Disclosures about Fair Value of Financial Instruments The tables below are a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do not may not may The Company has not not not not At June 30, 2021 Carrying Estimated Fair Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 939,929 $ 939,929 $ 939,929 $ - $ - Debt securities held to maturity 414,413 424,599 - 424,599 - Loans 1,171,097 1,188,428 - - 1,188,428 Financial Liabilities: Deposits $ 6,076,389 $ 6,076,339 $ - $ 5,922,812 $ 153,527 Short-term borrowed funds 90,043 90,043 - 90,043 - At December 31, 2020 Carrying Estimated Fair Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 621,275 $ 621,275 $ 621,275 $ - $ - Debt securities held to maturity 515,589 529,678 - 529,678 - Loans 1,232,389 1,290,938 - - 1,290,938 Financial Liabilities: Deposits $ 5,687,979 $ 5,688,049 $ - $ 5,531,590 $ 156,459 Short-term borrowed funds 102,545 102,545 - 102,545 - The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No

Note 10 - Commitments and Conti

Note 10 - Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 10: Loan commitments are agreements to lend to a customer provided there is no not June 30, 2021. not June 30, 2021 December 31, 2020. June 30, 2021 December 31, 2020. June 30, 2021 December 31, 2020. 3 rd June 30, 2021 December 31, 2020. June 30, 2021, not December 31, 2020. The Company determined that it will be obligated to provide refunds of revenue recognized in years prior to 2018 2017; second 2019, three six June 30, 2021, December 31, 2020 June 30, 2021 Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Based on the advice of legal counsel, the Company does not

Note 11 - Earnings Per Common S

Note 11 - Earnings Per Common Share	6 Months Ended
	Jun. 30, 2021
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 11: The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents. For the Three Months For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 22,579 $ 19,562 $ 42,726 $ 36,524 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,865 26,935 26,843 27,001 Basic earnings per common share $ 0.84 $ 0.72 $ 1.59 $ 1.35 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,865 26,935 26,843 27,001 Add common stock equivalents for options 22 16 22 23 Weighted average number of common shares outstanding - diluted (denominator) 26,887 26,951 26,865 27,024 Diluted earnings per common share $ 0.84 $ 0.72 $ 1.59 $ 1.35 For the three six June 30, 2021, not For the three six June 30, 2020, not

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Marketable Securities, Policy [Policy Text Block]	Debt Securities. Debt securities consist of U.S. Treasury, government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, collateralized loan obligations and commercial paper. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one three not not The Company utilizes third 1 2 third one third third not 3 The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12 15 To the extent that debt securities in the held-to-maturity portfolio share common risk characteristics, estimated expected credit losses are calculated in a manner like that used for loans held for investment. That is, for pools of such securities with common risk characteristics, the historical lifetime probability of default and severity of loss in the event of default is derived or obtained from external sources and adjusted for the expected effects of reasonable and supportable forecasts over the expected lives of the securities on those historical credit losses. Expected credit loss on each security in the held-to-maturity portfolio that do not may not Available for sale debt securities in unrealized loss positions are evaluated for credit related losses at least quarterly. For available for sale debt securities, a decline in fair value due to credit losses results in recording an allowance for credit losses to the extent the fair value is less than the amortized cost basis. Declines in fair value that have not not not not If the Company intends to sell a debt security or more likely than not Purchase premiums are amortized to the earliest call date and purchase discounts are amortized to maturity as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale debt securities are included in earnings using the specific identification method.
Equity Securities without Readily Determinable Fair Value [Policy Text Block]	Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not
Financing Receivable [Policy Text Block]	Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances and included in other assets. Loans which are more than 90 none 120 A troubled debt restructuring (“TDR”) occurs when the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower it would not may not 1 2 not 30 December 31, 2019; 3 March 1, 2020, 60 December 31, 2020. 2021, may not January 1, 2022.
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Credit Losses. The Company extends loans to commercial and consumer customers primarily in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loss. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of these financial statements requires Management to estimate the amount of expected losses over the expected contractual life of our existing loan portfolio and establish an allowance for credit losses. Loan agreements generally include a maturity date, and the Company considers the contractual life of a loan agreement to extend from the date of origination to the contractual maturity date. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans are charged to the allowance for credit losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for expected losses based on historical loss rates adjusted for current and expected conditions over a forecast period. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, or credit protection agreements and other factors. Loans that share common risk characteristics are segregated into pools based on common characteristics, which is primarily determined by loan, borrower, or collateral type. Historical loss rates are determined for each pool. For consumer installment loans, primarily secured by automobiles, historical loss rates are determined using a vintage methodology, which tracks losses based on period of origination. For commercial, construction, and commercial real estate, historical loss rates are determined using an open pool methodology where losses are tracked over time for all loans included in the pool at the historical measurement date. Historical loss rates are adjusted for factors that are not not two not not two Loans that do not not Accrued interest is recorded in other assets and is excluded from the estimation of expected credit loss. Accrued interest is reversed through interest income when amounts are determined to be uncollectible, which generally occurs when the underlying receivable is placed on nonaccrual status or charged off.
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	Liability for Off-Balance Sheet Credit Exposures. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. The Company maintains a separate allowance for credit losses from off-balance-sheet credit exposures, which is included within other liabilities on the consolidated statements of financial condition. Increases or reductions to the Company’s allowance for credit losses from off-balance sheet credit exposures are recorded in other expenses. Management estimates the amount of expected losses by estimating expected usage exposures that are not No may
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards In the six June 30, 2021, FASB ASU 2019 12 Income Taxes (Topic 740 December 2019. 740 December 15, 2020, January 1, 2021 not Recently Issued Accounting Standards FASB ASU 2020 04 Reference Rate Reform (Topic 848 March 2020. no not 2020 04 2020 04 March 12, 2020 December 31, 2022. may 2020 04 January 1, 2020, March 12, 2020, not

Note 3 - Investment Securities

Note 3 - Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]	At June 30, 2021 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 492,463 $ 17,997 $ - $ 510,460 Securities of U.S. Government entities 137 - - 137 Obligations of states and political subdivisions 100,115 4,490 (2 ) 104,603 Corporate securities 2,497,357 101,466 (1,973 ) 2,596,850 Collateralized loan obligations 1,090,686 2,246 (820 ) 1,092,112 Total debt securities available for sale 4,180,758 126,199 (2,795 ) 4,304,162 Debt securities held to maturity Agency residential MBS 186,702 5,309 (17 ) 191,994 Non-agency residential MBS 1,199 9 (12 ) 1,196 Obligations of states and political subdivisions 226,521 4,897 - 231,418 Total debt securities held to maturity 414,422 10,215 (29 ) 424,608 Total $ 4,595,180 $ 136,414 $ (2,824 ) $ 4,728,770 At December 31, 2020 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential MBS $ 630,174 $ 22,779 $ (1 ) $ 652,952 Securities of U.S. Government entities 154 - - 154 Obligations of states and political subdivisions 105,679 5,332 (1 ) 111,010 Corporate securities 1,986,995 131,025 (42 ) 2,117,978 Commercial paper 24,983 7 - 24,990 Collateralized loan obligations 1,152,766 4,433 (1,098 ) 1,156,101 Total debt securities available for sale 3,900,751 163,576 (1,142 ) 4,063,185 Debt securities held to maturity Agency residential MBS 240,332 6,852 (32 ) 247,152 Non-agency residential MBS 1,344 26 - 1,370 Obligations of states and political subdivisions 273,922 7,243 - 281,165 Total debt securities held to maturity 515,598 14,121 (32 ) 529,687 Total $ 4,416,349 $ 177,697 $ (1,174 ) $ 4,592,872
Investments Classified by Contractual Maturity Date [Table Text Block]	At June 30, 2021 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 283,566 $ 286,689 $ 36,764 $ 36,914 Over 1 to 5 years 785,821 829,793 130,690 133,710 Over 5 to 10 years 2,185,183 2,241,533 59,067 60,794 Over 10 years 433,725 435,687 - - Subtotal 3,688,295 3,793,702 226,521 231,418 MBS 492,463 510,460 187,901 193,190 Total $ 4,180,758 $ 4,304,162 $ 414,422 $ 424,608 At December 31, 2020 Debt Securities Available Debt Securities Held for Sale to Maturity Amortized Fair Amortized Fair Cost Value Cost Value (In thousands) Maturity in years: 1 year or less $ 212,140 $ 213,715 $ 54,526 $ 54,927 Over 1 to 5 years 922,170 974,438 129,786 133,195 Over 5 to 10 years 1,767,747 1,851,184 89,610 93,043 Over 10 years 368,520 370,896 - - Subtotal 3,270,577 3,410,233 273,922 281,165 MBS 630,174 652,952 241,676 248,522 Total $ 3,900,751 $ 4,063,185 $ 515,598 $ 529,687
Schedule of Unrealized Loss on Investments [Table Text Block]	Debt Securities Available for Sale At June 30, 2021 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 85 $ - 1 $ 12 $ - 2 $ 97 $ - Securities of U.S. - - - 1 137 - 1 137 - Obligations of states 3 1,429 (2 ) - - - 3 1,429 (2 ) Corporate securities 10 120,729 (1,917 ) 1 14,945 (56 ) 11 135,674 (1,973 ) Collateralized loan 31 254,066 (820 ) - - - 31 254,066 (820 ) Total 45 $ 376,309 $ (2,739 ) 3 $ 15,094 $ (56 ) 48 $ 391,403 $ (2,795 ) Debt Securities Held to Maturity At June 30, 2021 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 2 $ 146 $ 0 3 $ 643 $ (17 ) 5 $ 789 $ (17 ) Non-agency residential 1 648 (12 ) - - - 1 648 (12 ) Total 3 $ 794 $ (12 ) 3 $ 643 $ (17 ) 6 $ 1,437 $ (29 ) Debt Securities Available for Sale At December 31, 2020 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 1 $ 96 $ (1 ) 1 $ 17 $ - 2 $ 113 $ (1 ) Securities of U.S. 1 154 - - - - 1 154 - Obligations of states 2 692 (1 ) - - - 2 692 (1 ) Corporate securities - - - 1 14,963 (42 ) 1 14,963 (42 ) Collateralized loan 36 268,584 (1,098 ) - - - 36 268,584 (1,098 ) Total 40 $ 269,526 $ (1,100 ) 2 $ 14,980 $ (42 ) 42 $ 284,506 $ (1,142 ) Debt Securities Held to Maturity At December 31, 2020 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrecognized Investment Unrecognized Investment Unrecognized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Agency residential MBS 3 $ 377 $ (1 ) 3 $ 788 $ (31 ) 6 $ 1,165 $ (32 )
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Table Text Block]	For the Six Months Ended June 30, 2021 2020 (In thousands) Allowance for credit losses: Balance, end of prior period $ 9 $ - Impact of adopting ASU 2016-13 - 16 Beginning balance 9 16 Provision - - Chargeoffs - - Recoveries - - Total ending balance $ 9 $ 16
Debt Securities, Held-to-maturity, Credit Quality Indicator [Table Text Block]	Credit Risk Profile by Credit Rating At June 30, 2021 AAA/AA/A BBB BB/B/NR Total (In thousands) Agency residential MBS $ 186,702 $ - $ - $ 186,702 Non-agency residential MBS 286 - 913 1,199 Obligations of states and political subdivisions 219,231 690 6,600 226,521 Total $ 406,219 $ 690 $ 7,513 $ 414,422
Interest Income from Investments [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands) Taxable $ 26,692 $ 22,920 $ 51,890 $ 44,884 Tax-exempt from regular federal income tax 2,261 3,228 4,660 6,590 Total interest income from investment securities $ 28,953 $ 26,148 $ 56,550 $ 51,474

Note 4 - Loans, Allowance for_2

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At June 30, At December 31, 2021 2020 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 165,075 $ 186,945 Other 188,399 207,861 Total Commercial 353,474 394,806 Commercial Real Estate 542,627 564,300 Construction 113 129 Residential Real Estate 20,431 23,471 Consumer Installment & Other 278,189 273,537 Total $ 1,194,834 $ 1,256,243
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Allowance for Credit Losses For the Three Months Ended June 30, 2021 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 9,554 $ 5,505 $ 6 $ 43 $ 8,375 $ 23,483 (Reversal) provision (2,771 ) 1,235 (1 ) 14 1,523 - Chargeoffs - - - - (331 ) (331 ) Recoveries 75 12 - - 498 585 Total allowance for credit losses $ 6,858 $ 6,752 $ 5 $ 57 $ 10,065 $ 23,737 Allowance for Credit Losses For the Six Months Ended June 30, 2021 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 9,205 $ 5,660 $ 6 $ 47 $ 8,936 $ 23,854 (Reversal) provision (2,435 ) 1,068 (1 ) 10 1,358 - Chargeoffs - - - - (1,260 ) (1,260 ) Recoveries 88 24 - - 1,031 1,143 Total allowance for credit losses $ 6,858 $ 6,752 $ 5 $ 57 $ 10,065 $ 23,737 Allowance for Credit Losses For the Three Months Ended June 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 8,336 $ 4,753 $ 107 $ 70 $ 11,538 $ 24,804 (Reversal) provision (357 ) (142 ) (100 ) (13 ) 612 - Chargeoffs - - - - (804 ) (804 ) Recoveries 93 12 - - 424 529 Total allowance for credit losses $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ 24,529 Allowance for Credit Losses For the Six Months Ended June 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for credit losses: Balance at beginning of period, prior to adoption of ASU 2016-13 $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Impact of adopting ASU 2016-13 3,385 618 (31 ) (132 ) 1,878 (3,701 ) 2,017 Adjusted beginning balance 8,344 4,682 78 74 8,323 - 21,501 (Reversal) provision (330 ) (84 ) (71 ) (17 ) 4,802 - 4,300 Chargeoffs (178 ) - - - (2,199 ) - (2,377 ) Recoveries 236 25 - - 844 - 1,105 Total allowance for credit losses $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ - $ 24,529
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade At June 30, 2021 Commercial Commercial Construction Residential Consumer Total (In thousands) Grade: Pass $ 352,791 $ 525,992 $ 113 $ 18,861 $ 275,630 $ 1,173,387 Substandard 683 16,635 - 1,570 1,483 20,371 Doubtful - - - - 797 797 Loss - - - - 279 279 Total $ 353,474 $ 542,627 $ 113 $ 20,431 $ 278,189 $ 1,194,834 Credit Risk Profile by Internally Assigned Grade At December 31, 2020 Commercial Commercial Construction Residential Consumer Total (In thousands) Grade: Pass $ 386,144 $ 545,398 $ 129 $ 22,105 $ 270,925 $ 1,224,701 Substandard 8,662 18,902 - 1,366 1,498 30,428 Doubtful - - - - 543 543 Loss - - - - 571 571 Total $ 394,806 $ 564,300 $ 129 $ 23,471 $ 273,537 $ 1,256,243
Financing Receivable, Past Due [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status At June 30, 2021 Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 352,911 $ 270 $ 293 $ - $ - $ 353,474 Commercial real estate 537,835 773 602 - 3,417 542,627 Construction 113 - - - - 113 Residential real estate 19,738 263 17 - 413 20,431 Consumer installment and other 274,931 1,869 836 167 386 278,189 Total $ 1,185,528 $ 3,175 $ 1,748 $ 167 $ 4,216 $ 1,194,834 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2020 Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 394,004 $ 713 $ 6 $ - $ 83 $ 394,806 Commercial real estate 560,580 - - - 3,720 564,300 Construction 129 - - - - 129 Residential real estate 22,269 770 271 - 161 23,471 Consumer installment and other 270,240 2,010 472 450 365 273,537 Total $ 1,247,222 $ 3,493 $ 749 $ 450 $ 4,329 $ 1,256,243
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	Troubled Debt Restructurings At June 30, 2021 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 3 $ 7,445 $ 4,998 $ - Residential real estate 1 241 176 - Total 4 $ 7,686 $ 5,174 $ - Troubled Debt Restructurings At December 31, 2020 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 6 $ 8,367 $ 6,040 $ - Residential real estate 1 241 181 - Total 7 $ 8,608 $ 6,221 $ -
Financing Receivable, Loans by Risk Category [Table Text Block]	At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Commercial loans by grade Pass $ 41,570 $ 6,211 $ 11,163 $ 34,282 $ 94,307 $ 137,817 $ 325,350 $ 27,441 $ 352,791 Substandard 36 - - - - 108 144 539 683 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 41,606 $ 6,211 $ 11,163 $ 34,282 $ 94,307 $ 137,925 $ 325,494 $ 27,980 $ 353,474 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade Pass $ 137,062 $ 93,405 $ 82,629 $ 80,577 $ 87,395 $ 44,924 $ 525,992 $ - $ 525,992 Substandard 13,519 255 - 2,029 832 - 16,635 - 16,635 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 150,581 $ 93,660 $ 82,629 $ 82,606 $ 88,227 $ 44,924 $ 542,627 $ - $ 542,627 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Construction loans by grade Pass $ - $ - $ - $ - $ - $ - $ - $ 113 $ 113 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 113 $ 113 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Residential Real Estate loans by grade Pass $ 18,861 $ - $ - $ - $ - $ - $ 18,861 $ - $ 18,861 Substandard 1,570 - - - - - 1,570 - 1,570 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 20,431 $ - $ - $ - $ - $ - $ 20,431 $ - $ 20,431 At June 30, 2021 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2017 2018 2019 2020 2021 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status Current $ 14,196 $ 15,298 $ 36,279 $ 49,183 $ 73,442 $ 62,030 $ 250,428 $ 24,503 $ 274,931 30-59 days past due 156 63 246 497 644 262 1,868 1 1,869 60-89 days past due 51 59 125 191 274 41 741 95 836 Past due 90 days or more - - 47 75 27 18 167 - 167 Nonaccrual - - - - - - - 386 386 Total $ 14,403 $ 15,420 $ 36,697 $ 49,946 $ 74,387 $ 62,351 $ 253,204 $ 24,985 $ 278,189

Note 6 - Other Assets and Oth_2

Note 6 - Other Assets and Other Liabilities (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Other Assets [Table Text Block]	At June 30, At December 31, 2021 2020 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 158 158 Total cost method equity investments 14,227 14,227 Life insurance cash surrender value 61,755 60,444 Right-of-use asset 20,694 18,832 Limited partnership investments 17,006 18,335 Interest receivable 34,793 33,022 Prepaid assets 3,747 4,572 Other assets 11,236 10,471 Total other assets $ 163,458 $ 159,903
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months Ended For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands) Investment loss included in pre-tax income $ 600 $ 600 $ 1,200 $ 1,200 Tax credits recognized in provision for income taxes 225 225 450 450
Other Liabilities [Table Text Block]	At June 30, At December 31, 2021 2020 (In thousands) Net deferred tax liability $ 12,810 $ 25,778 Operating lease liability 20,694 18,832 Securities purchases pending settlement 64,993 29,000 Other liabilities 40,654 38,988 Total other liabilities $ 139,151 $ 112,598
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Minimum At June 30, 2021 (In thousands) 2021 $ 3,068 2022 5,649 2023 4,941 2024 3,353 2025 2,162 Thereafter 2,251 Total minimum lease payments 21,424 Less: discount (730 ) Present value of lease liability $ 20,694

Note 7 - Goodwill and Identif_2

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Goodwill [Table Text Block]	At June 30, 2021 At December 31, 2020 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At June 30, 2021 At December 31, 2020 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,841 ) $ 56,808 $ (55,704 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Total Core Deposit Intangibles (In thousands) For the six months ended June 30, 2021 (actual) $ 137 Estimate for the remainder of 2021 132 Estimate for year ending December 31, 2022 252 2023 236 2024 222 2025 125

Note 8 - Deposits and Borrowe_2

Note 8 - Deposits and Borrowed Funds (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Deposit Liabilities, Type [Table Text Block]	Deposits At June 30, At December 31, 2021 2020 (In thousands) Noninterest-bearing $ 2,872,920 $ 2,725,177 Interest-bearing: Transaction 1,200,634 1,102,601 Savings 1,849,258 1,703,812 Time deposits less than $100 thousand 76,474 79,825 Time deposits $100 thousand through $250 thousand 50,754 49,323 Time deposits more than $250 thousand 26,349 27,241 Total deposits $ 6,076,389 $ 5,687,979
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At June 30, At December 31, 2021 2020 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 52,266 $ 67,019 Corporate securities 187,252 188,195 Total collateral carrying value $ 239,518 $ 255,214 Total short-term borrowed funds $ 90,043 $ 102,545

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At June 30, 2021 Fair Value Quoted Prices Significant Significant (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 510,460 $ - $ 510,460 $ - Securities of U.S. Government entities 137 - 137 - Obligations of states and political subdivisions 104,603 - 104,603 - Corporate securities 2,596,850 - 2,596,850 - Collateralized loan obligations 1,092,112 - 1,092,112 - Total debt securities available for sale $ 4,304,162 $ - $ 4,304,162 $ - At December 31, 2020 Fair Value Quoted Prices Significant Significant (1) (In thousands) Debt securities available for sale Agency residential MBS $ 652,952 $ - $ 652,952 $ - Securities of U.S. Government entities 154 - 154 - Obligations of states and political subdivisions 111,010 - 111,010 - Corporate securities 2,117,978 - 2,117,978 - Commercial paper 24,990 - 24,990 - Collateralized loan obligations 1,156,101 - 1,156,101 - Total debt securities available for sale $ 4,063,185 $ - $ 4,063,185 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	For the Six Months Ended At June 30, 2021 June 30, 2021 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial real estate $ 3,409 $ - $ - $ 3,409 $ - Residential real estate 175 - - 175 - Total assets measured at fair value on a nonrecurring basis $ 3,584 $ - $ - $ 3,584 $ - For the Year Ended At December 31, 2020 December 31, 2020 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial $ 5,270 $ - $ - $ 5,270 $ - Commercial real estate 3,710 - - 3,710 - Residential real estate 181 - - 181 - Total assets measured at fair value on a nonrecurring basis $ 9,161 $ - $ - $ 9,161 $ -
Fair Value, by Balance Sheet Grouping [Table Text Block]	At June 30, 2021 Carrying Estimated Fair Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 939,929 $ 939,929 $ 939,929 $ - $ - Debt securities held to maturity 414,413 424,599 - 424,599 - Loans 1,171,097 1,188,428 - - 1,188,428 Financial Liabilities: Deposits $ 6,076,389 $ 6,076,339 $ - $ 5,922,812 $ 153,527 Short-term borrowed funds 90,043 90,043 - 90,043 - At December 31, 2020 Carrying Estimated Fair Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 621,275 $ 621,275 $ 621,275 $ - $ - Debt securities held to maturity 515,589 529,678 - 529,678 - Loans 1,232,389 1,290,938 - - 1,290,938 Financial Liabilities: Deposits $ 5,687,979 $ 5,688,049 $ - $ 5,531,590 $ 156,459 Short-term borrowed funds 102,545 102,545 - 102,545 -

Note 11 - Earnings Per Common_2

Note 11 - Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2021
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2021 2020 2021 2020 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 22,579 $ 19,562 $ 42,726 $ 36,524 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,865 26,935 26,843 27,001 Basic earnings per common share $ 0.84 $ 0.72 $ 1.59 $ 1.35 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,865 26,935 26,843 27,001 Add common stock equivalents for options 22 16 22 23 Weighted average number of common shares outstanding - diluted (denominator) 26,887 26,951 26,865 27,024 Diluted earnings per common share $ 0.84 $ 0.72 $ 1.59 $ 1.35

Note 3 - Investment Securitie_2

Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 9	$ 9	$ 16		$ 0
Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal)	(7)	0	$ 0
High Risk Collateralized Mortgage Obligations	0	0
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total		0
Pledged Financial Instruments, Not Separately Reported, Securities, Total	888,577	866,373
Debt Securities, Available-for-sale, Amortized Cost, Total	3,900,751	4,180,758
Debt Securities, Available-for-sale, Total	4,063,185	4,304,162
Debt Securities, Held-to-maturity, Nonaccrual		0
Debt Security, Corporate, US [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	1,986,995	2,497,357
Debt Securities, Available-for-sale, Total	2,117,978	2,596,850
Debt Security, Corporate, US [Member] | External Credit Rating, Non Investment Grade [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total		15,000
Debt Securities, Available-for-sale, Total		$ 14,950
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 9			$ 16	$ 16

Note 3 - Investment Securitie_3

Note 3 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt securities available for sale, amortized cost	$ 4,180,758	$ 3,900,751
Debt securities available for sale, gross unrealized gains	126,199	163,576
Debt securities available for sale, gross unrealized losses	(2,795)	(1,142)
Debt securities available for sale	4,304,162	4,063,185
Held to maturity	414,422	515,598
Debt securities held to maturity, gross unrecognized gains	10,215	14,121
Debt securities held to maturity, gross unrecognized losses	(29)	(32)
Debt securities held to maturity, fair value	424,608	529,687
Debt securities, amortized cost	4,595,180	4,416,349
Debt securities, gross unrecognized gains	136,414	177,697
Debt securities, gross unrecognized losses	(2,824)	(1,174)
Debt securities, fair value	4,728,770	4,592,872
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	492,463	630,174
Debt securities available for sale, gross unrealized gains	17,997	22,779
Debt securities available for sale, gross unrealized losses	0	(1)
Debt securities available for sale	510,460	652,952
Held to maturity	186,702	240,332
Debt securities held to maturity, gross unrecognized gains	5,309	6,852
Debt securities held to maturity, gross unrecognized losses	(17)	(32)
Debt securities held to maturity, fair value	191,994	247,152
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	137	154
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	0	0
Debt securities available for sale	137	154
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	100,115	105,679
Debt securities available for sale, gross unrealized gains	4,490	5,332
Debt securities available for sale, gross unrealized losses	(2)	(1)
Debt securities available for sale	104,603	111,010
Held to maturity	226,521	273,922
Debt securities held to maturity, gross unrecognized gains	4,897	7,243
Debt securities held to maturity, gross unrecognized losses	0	0
Debt securities held to maturity, fair value	231,418	281,165
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	2,497,357	1,986,995
Debt securities available for sale, gross unrealized gains	101,466	131,025
Debt securities available for sale, gross unrealized losses	(1,973)	(42)
Debt securities available for sale	2,596,850	2,117,978
Collateralized Debt Obligations [Member]
Debt securities available for sale, amortized cost	1,090,686	1,152,766
Debt securities available for sale, gross unrealized gains	2,246	4,433
Debt securities available for sale, gross unrealized losses	(820)	(1,098)
Debt securities available for sale	1,092,112	1,156,101
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Debt securities available for sale, amortized cost		24,983
Debt securities available for sale, gross unrealized gains		7
Debt securities available for sale, gross unrealized losses		0
Debt securities available for sale		24,990
Non-agency Residential MBS [Member]
Held to maturity	1,199	1,344
Debt securities held to maturity, gross unrecognized gains	9	26
Debt securities held to maturity, gross unrecognized losses	(12)	0
Debt securities held to maturity, fair value	$ 1,196	$ 1,370

Note 3 - Investment Securitie_4

Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Investment securities available for sale, amortized cost, 1 year or less	$ 283,566	$ 212,140
Investment securities available for sale, fair value, 1 year or less	286,689	213,715
Investment securities held to maturity, amortized cost, 1 year or less	36,764	54,526
Investment securities held to maturity, fair value, 1 year or less	36,914	54,927
Investment securities available for sale, amortized cost, over 1 to 5 years	785,821	922,170
Investment securities available for sale, fair value, over 1 to 5 years	829,793	974,438
Investment securities held to maturity, amortized cost, over 1 to 5 years	130,690	129,786
Investment securities held to maturity, fair value, over 1 to 5 years	133,710	133,195
Investment securities available for sale, amortized cost, over 5 to 10 years	2,185,183	1,767,747
Investment securities available for sale, fair value, over 5 to 10 years	2,241,533	1,851,184
Investment securities held to maturity, amortized cost, over 5 to 10 years	59,067	89,610
Investment securities held to maturity, fair value, over 5 to 10 years	60,794	93,043
Investment securities available for sale, amortized cost, over 10 years	433,725	368,520
Investment securities available for sale, fair value, over 10 years	435,687	370,896
Investment securities held to maturity, amortized cost, over 10 years	0	0
Investment securities held to maturity, fair value, over 10 years	0	0
Investment securities available for sale, amortized cost, subtotal	3,688,295	3,270,577
Investment securities available for sale, fair value, subtotal	3,793,702	3,410,233
Investment securities held to maturity, amortized cost, subtotal	226,521	273,922
Investment securities held to maturity, fair value, subtotal	231,418	281,165
Investment securities available for sale, amortized cost	492,463	630,174
Investment securities available for sale, fair value	510,460	652,952
Investment securities held to maturity, amortized cost	187,901	241,676
Investment securities held to maturity, fair value	193,190	248,522
Investment securities available for sale, amortized cost	4,180,758	3,900,751
Investment securities available for sale, fair value	4,304,162	4,063,185
Investment securities held to maturity, amortized cost	414,422	515,598
Investment securities held to maturity, fair value	$ 424,608	$ 529,687

Note 3 - Investment Securitie_5

Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Available for sale securities, less than 12 months, number of investment positions	45	40
Available for sale securities, less than 12 months, fair value	$ 376,309	$ 269,526
Available for sale securities, less than 12 months, unrealized losses	$ (2,739)	$ (1,100)
Available for sale securities, 12 months or longer, number of investment positions	3	2
Available for sale securities, 12 months or longer, fair value	$ 15,094	$ 14,980
Available for sale securities, 12 months or longer, unrealized losses	$ (56)	$ (42)
Available for sale securities, total, number of investment positions	48	42
Available for sale securities, total, fair value	$ 391,403	$ 284,506
Available for sale securities, total, unrealized losses	$ (2,795)	$ (1,142)
Held to Maturity securities, less than 12 months, number of investment positions	3
Held to Maturity securities, less than 12 months, fair value	$ 794
Held to Maturity securities, less than 12 months, unrecognized losses	$ (12)
Held to Maturity securities, 12 months or longer, number of investment positions	3
Held to Maturity securities, 12 months or longer, fair value	$ 643
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (17)
Held to Maturity securities, total, number of investment positions	6
Held to Maturity securities, total, fair value	$ 1,437
Held to Maturity securities, total, unrecognized losses	$ (29)
Agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	1	1
Available for sale securities, less than 12 months, fair value	$ 85	$ 96
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ (1)
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 12	$ 17
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ 0
Available for sale securities, total, number of investment positions	2	2
Available for sale securities, total, fair value	$ 97	$ 113
Available for sale securities, total, unrealized losses	$ 0	$ (1)
Held to Maturity securities, less than 12 months, number of investment positions	2	3
Held to Maturity securities, less than 12 months, fair value	$ 146	$ 377
Held to Maturity securities, less than 12 months, unrecognized losses	$ 0	$ (1)
Held to Maturity securities, 12 months or longer, number of investment positions	3	3
Held to Maturity securities, 12 months or longer, fair value	$ 643	$ 788
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (17)	$ (31)
Held to Maturity securities, total, number of investment positions	5	6
Held to Maturity securities, total, fair value	$ 789	$ 1,165
Held to Maturity securities, total, unrecognized losses	$ (17)	$ (32)
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	1
Available for sale securities, less than 12 months, fair value	$ 0	$ 154
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ 0
Available for sale securities, 12 months or longer, number of investment positions	1	0
Available for sale securities, 12 months or longer, fair value	$ 137	$ 0
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ 0
Available for sale securities, total, number of investment positions	1	1
Available for sale securities, total, fair value	$ 137	$ 154
Available for sale securities, total, unrealized losses	$ 0	$ 0
Non-agency Residential MBS [Member]
Held to Maturity securities, less than 12 months, number of investment positions	1
Held to Maturity securities, less than 12 months, fair value	$ 648
Held to Maturity securities, less than 12 months, unrecognized losses	$ (12)
Held to Maturity securities, 12 months or longer, number of investment positions	0
Held to Maturity securities, 12 months or longer, fair value	$ 0
Held to Maturity securities, 12 months or longer, unrecognized losses	$ 0
Held to Maturity securities, total, number of investment positions	1
Held to Maturity securities, total, fair value	$ 648
Held to Maturity securities, total, unrecognized losses	$ (12)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	3	2
Available for sale securities, less than 12 months, fair value	$ 1,429	$ 692
Available for sale securities, less than 12 months, unrealized losses	$ (2)	$ (1)
Available for sale securities, 12 months or longer, number of investment positions	0	0
Available for sale securities, 12 months or longer, fair value	$ 0	$ 0
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ 0
Available for sale securities, total, number of investment positions	3	2
Available for sale securities, total, fair value	$ 1,429	$ 692
Available for sale securities, total, unrealized losses	$ (2)	$ (1)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	10	0
Available for sale securities, less than 12 months, fair value	$ 120,729	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ (1,917)	$ 0
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 14,945	$ 14,963
Available for sale securities, 12 months or longer, unrealized losses	$ (56)	$ (42)
Available for sale securities, total, number of investment positions	11	1
Available for sale securities, total, fair value	$ 135,674	$ 14,963
Available for sale securities, total, unrealized losses	$ (1,973)	$ (42)
Collateralized Loan Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions	31
Available for sale securities, less than 12 months, fair value	$ 254,066
Available for sale securities, less than 12 months, unrealized losses	$ (820)
Available for sale securities, 12 months or longer, number of investment positions	0
Available for sale securities, 12 months or longer, fair value	$ 0
Available for sale securities, 12 months or longer, unrealized losses	$ 0
Available for sale securities, total, number of investment positions	31
Available for sale securities, total, fair value	$ 254,066
Available for sale securities, total, unrealized losses	$ (820)
Collateralized Debt Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions		36
Available for sale securities, less than 12 months, fair value		$ 268,584
Available for sale securities, less than 12 months, unrealized losses		$ (1,098)
Available for sale securities, 12 months or longer, number of investment positions		0
Available for sale securities, 12 months or longer, fair value		$ 0
Available for sale securities, 12 months or longer, unrealized losses		$ 0
Available for sale securities, total, number of investment positions		36
Available for sale securities, total, fair value		$ 268,584
Available for sale securities, total, unrealized losses		$ (1,098)

Note 3 - Investment Securitie_6

Note 3 - Investment Securities - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Dec. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Balance		$ 9	$ 0
Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal)	$ (7)	0	0
Chargeoffs		0	0
Recoveries		0	0
Total ending balance	9	9	16
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance		0	16
Total ending balance	0
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance		$ 9	$ 16
Total ending balance	$ 9

Note 3 - Investment Securitie_7

Note 3 - Investment Securities - Credit Quality (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Held to maturity	$ 414,422	$ 515,598
AAA/AA/A [Member]
Held to maturity	406,219
BBB [Member]
Held to maturity	690
BB/B/NR [Member]
Held to maturity	7,513
Agency Residential MBS [Member]
Held to maturity	186,702	240,332
Agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	186,702
Agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Agency Residential MBS [Member] | BB/B/NR [Member]
Held to maturity	0
Non-agency Residential MBS [Member]
Held to maturity	1,199	1,344
Non-agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	286
Non-agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Non-agency Residential MBS [Member] | BB/B/NR [Member]
Held to maturity	913
US States and Political Subdivisions Debt Securities [Member]
Held to maturity	226,521	$ 273,922
US States and Political Subdivisions Debt Securities [Member] | AAA/AA/A [Member]
Held to maturity	219,231
US States and Political Subdivisions Debt Securities [Member] | BBB [Member]
Held to maturity	690
US States and Political Subdivisions Debt Securities [Member] | BB/B/NR [Member]
Held to maturity	$ 6,600

Note 3 - Investment Securitie_8

Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Taxable	$ 26,692	$ 22,920	$ 51,890	$ 44,884
Tax-exempt from regular federal income tax	2,261	3,228	4,660	6,590
Total interest income from investment securities	$ 28,953	$ 26,148	$ 56,550	$ 51,474

Note 4 - Loans, Allowance for_3

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Details Textual) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 23,737	$ 24,529	$ 23,737	$ 24,529	$ 23,483	$ 23,854	$ 24,804	$ 19,484
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	$ 0		$ 0			0
Troubled Debt Restructurings During Period	0	0	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Troubled Debt Restructuring	$ 5,174		$ 5,174			6,221
Other Real Estate, Reserve	0		0			0
Mortgage Loans in Process of Foreclosure, Amount	386		386			346
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	0		0			0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	6,752	$ 4,623	6,752	$ 4,623	5,505	5,660	4,753	4,064
Financing Receivable, Troubled Debt Restructuring	4,998		4,998			6,040
Allowance for Credit Losses, Collateral-dependent Loans	$ 0		$ 0			$ 0
Number of Collateral-dependent Loans	5		5			5
Collateral-dependent Loans, Balance	$ 10,800		$ 10,800			$ 11,100
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	10,065	11,770	10,065	11,770	8,375	8,936	11,538	6,445
Collateral-dependent Loans, Balance	399		399			446
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 6,858	8,072	$ 6,858	8,072	9,554	9,205	8,336	4,959
Number of Collateral-dependent Loans	1		1
Collateral-dependent Loans, Balance	$ 108		$ 108
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	57	$ 57	57	$ 57	$ 43	47	$ 70	$ 206
Financing Receivable, Troubled Debt Restructuring	$ 176		$ 176			$ 181
Number of Collateral-dependent Loans	5		5			2
Collateral-dependent Loans, Balance	$ 562		$ 562			$ 346
Other Consumer Loan [Member]
Financing Receivable, Principal and Interest Deferred Payments	586		586
Restructured Loans [Member]
Financing Receivable, Troubled Debt Restructuring	5,174		5,174			6,221
Impaired Loans, Restructured, Nonaccrual Status	3,120		3,120			3,420
Nonperforming Financial Instruments [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 0		$ 0			$ 0

Note 4 - Loans, Allowance for_4

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans	$ 1,194,834	$ 1,256,243
Commercial Portfolio Segment [Member]
Loans	353,474	394,806
Commercial Portfolio Segment [Member] | Paycheck Protection Program Loans [Member]
Loans	165,075	186,945
Commercial Portfolio Segment [Member] | Other Commercial Portfolio Segment [Member]
Loans	188,399	207,861
Commercial Real Estate Portfolio Segment [Member]
Loans	542,627	564,300
Construction Portfolio Segment [Member]
Loans	113	129
Residential Portfolio Segment [Member]
Loans	20,431	23,471
Consumer Portfolio Segment [Member]
Loans	$ 278,189	$ 273,537

Note 4 - Loans, Allowance for_5

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Balance at beginning of period	$ 23,483	$ 24,804	$ 23,854	$ 19,484
(Reversal) provision	0	0	0	4,300
Chargeoffs	(331)	(804)	(1,260)	(2,377)
Recoveries	585	529	1,143	1,105
Total allowance for credit losses	23,737	24,529	23,737	24,529
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				2,017
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				21,501
Unallocated Financing Receivable [Member]
Balance at beginning of period				3,701
(Reversal) provision				0
Chargeoffs				0
Recoveries				0
Total allowance for credit losses		0		0
Unallocated Financing Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				(3,701)
Unallocated Financing Receivable [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				0
Commercial Portfolio Segment [Member]
Balance at beginning of period	9,554	8,336	9,205	4,959
(Reversal) provision	(2,771)	(357)	(2,435)	(330)
Chargeoffs	0	0	0	(178)
Recoveries	75	93	88	236
Total allowance for credit losses	6,858	8,072	6,858	8,072
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				3,385
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				8,344
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period	5,505	4,753	5,660	4,064
(Reversal) provision	1,235	(142)	1,068	(84)
Chargeoffs	0	0	0	0
Recoveries	12	12	24	25
Total allowance for credit losses	6,752	4,623	6,752	4,623
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				618
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				4,682
Construction Portfolio Segment [Member]
Balance at beginning of period	6	107	6	109
(Reversal) provision	(1)	(100)	(1)	(71)
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for credit losses	5	7	5	7
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				(31)
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				78
Residential Portfolio Segment [Member]
Balance at beginning of period	43	70	47	206
(Reversal) provision	14	(13)	10	(17)
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for credit losses	57	57	57	57
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				(132)
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				74
Consumer Portfolio Segment [Member]
Balance at beginning of period	8,375	11,538	8,936	6,445
(Reversal) provision	1,523	612	1,358	4,802
Chargeoffs	(331)	(804)	(1,260)	(2,199)
Recoveries	498	424	1,031	844
Total allowance for credit losses	$ 10,065	$ 11,770	$ 10,065	11,770
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period				1,878
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period				$ 8,323

Note 4 - Loans, Allowance for_6

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans	$ 1,194,834	$ 1,256,243
Pass [Member]
Loans	1,173,387	1,224,701
Substandard [Member]
Loans	20,371	30,428
Doubtful [Member]
Loans	797	543
Unlikely to be Collected Financing Receivable [Member]
Loans	279	571
Commercial Portfolio Segment [Member]
Loans	353,474	394,806
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	352,791	386,144
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	683	8,662
Commercial Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Loans	542,627	564,300
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	525,992	545,398
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	16,635	18,902
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Construction Portfolio Segment [Member]
Loans	113	129
Construction Portfolio Segment [Member] | Pass [Member]
Loans	113	129
Construction Portfolio Segment [Member] | Substandard [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Residential Portfolio Segment [Member]
Loans	20,431	23,471
Residential Portfolio Segment [Member] | Pass [Member]
Loans	18,861	22,105
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	1,570	1,366
Residential Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Residential Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Consumer Portfolio Segment [Member]
Loans	278,189	273,537
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	275,630	270,925
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,483	1,498
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	797	543
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 279	$ 571

Note 4 - Loans, Allowance for_7

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Total loans	$ 1,194,834	$ 1,256,243
Nonaccrual	4,216	4,329
Financial Asset, Not Past Due [Member]
Total loans	1,185,528	1,247,222
Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	3,175	3,493
Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	1,748	749
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	167	450
Commercial Portfolio Segment [Member]
Total loans	353,474	394,806
Nonaccrual	0	83
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Total loans	352,911	394,004
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	270	713
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	293	6
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Total loans	542,627	564,300
Nonaccrual	3,417	3,720
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Total loans	537,835	560,580
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	773	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	602	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	0	0
Construction Portfolio Segment [Member]
Total loans	113	129
Nonaccrual	0	0
Construction Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Total loans	113	129
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	0	0
Residential Portfolio Segment [Member]
Total loans	20,431	23,471
Nonaccrual	413	161
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Total loans	19,738	22,269
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	263	770
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	17	271
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	0	0
Consumer Portfolio Segment [Member]
Total loans	278,189	273,537
Nonaccrual	386	365
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Total loans	274,931	270,240
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Total loans	1,869	2,010
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Total loans	836	472
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Total loans	$ 167	$ 450

Note 4 - Loans, Allowance for L

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Troubled Debt Restructurings (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)	Dec. 31, 2020USD ($)
Number of Contracts	4	7
Pre-Modification Carrying Value	$ 7,686	$ 8,608
Period-End Carrying Value	5,174	6,221
Period-End Individual Impairment Allowance	$ 0	$ 0
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	3	6
Pre-Modification Carrying Value	$ 7,445	$ 8,367
Period-End Carrying Value	4,998	6,040
Period-End Individual Impairment Allowance	$ 0	$ 0
Residential Portfolio Segment [Member]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 241	$ 241
Period-End Carrying Value	176	181
Period-End Individual Impairment Allowance	$ 0	$ 0

Note 4 - Loans, Allowance for_8

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Loans	$ 1,194,834	$ 1,256,243
Nonaccrual	4,216	4,329
Financial Asset, Not Past Due [Member]
Loans	1,185,528	1,247,222
Financial Asset, 30 to 59 Days Past Due [Member]
Loans	3,175	3,493
Financial Asset, 60 to 89 Days Past Due [Member]
Loans	1,748	749
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	167	450
Commercial Portfolio Segment [Member]
Originated prior	41,606
Originated 2017	6,211
Originated 2018	11,163
Originated 2019	34,282
Originated 2020	94,307
Originated 2021	137,925
Total Term Loans	325,494
Revolving Loans Amortized Cost Basis	27,980
Loans	353,474	394,806
Nonaccrual	0	83
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	352,911	394,004
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	270	713
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	293	6
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member]
Originated prior	150,581
Originated 2017	93,660
Originated 2018	82,629
Originated 2019	82,606
Originated 2020	88,227
Originated 2021	44,924
Total Term Loans	542,627
Revolving Loans Amortized Cost Basis	0
Loans	542,627	564,300
Nonaccrual	3,417	3,720
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	537,835	560,580
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	773	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	602	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	113
Loans	113	129
Nonaccrual	0	0
Construction Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	113	129
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	0	0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Residential Portfolio Segment [Member]
Originated prior	20,431
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	20,431
Revolving Loans Amortized Cost Basis	0
Loans	20,431	23,471
Nonaccrual	413	161
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	19,738	22,269
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	263	770
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	17	271
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0	0
Consumer Portfolio Segment [Member]
Loans	278,189	273,537
Nonaccrual	386	365
Consumer Portfolio Segment [Member] | Financial Asset, Not Past Due [Member]
Loans	274,931	270,240
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,869	2,010
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	836	472
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	167	450
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	14,403
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Not Past Due [Member]
Loans	14,196
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	156
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	51
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	15,420
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Not Past Due [Member]
Loans	15,298
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	63
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	59
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	36,697
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Not Past Due [Member]
Loans	36,279
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	246
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	125
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	47
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	49,946
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Not Past Due [Member]
Loans	49,183
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	497
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	191
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	75
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	74,387
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Not Past Due [Member]
Loans	73,442
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	644
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	274
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	27
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member]
Loans	62,351
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, Not Past Due [Member]
Loans	62,030
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	262
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	41
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	18
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	253,204
Nonaccrual	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Not Past Due [Member]
Loans	250,428
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1,868
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	741
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	167
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	24,985
Nonaccrual	386
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Not Past Due [Member]
Loans	24,503
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Loans	1
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Loans	95
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans	0
Pass [Member]
Loans	1,173,387	1,224,701
Pass [Member] | Commercial Portfolio Segment [Member]
Originated prior	41,570
Originated 2017	6,211
Originated 2018	11,163
Originated 2019	34,282
Originated 2020	94,307
Originated 2021	137,817
Total Term Loans	325,350
Revolving Loans Amortized Cost Basis	27,441
Loans	352,791	386,144
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	137,062
Originated 2017	93,405
Originated 2018	82,629
Originated 2019	80,577
Originated 2020	87,395
Originated 2021	44,924
Total Term Loans	525,992
Revolving Loans Amortized Cost Basis	0
Loans	525,992	545,398
Pass [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	113
Loans	113	129
Pass [Member] | Residential Portfolio Segment [Member]
Originated prior	18,861
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	18,861
Revolving Loans Amortized Cost Basis	0
Loans	18,861	22,105
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	275,630	270,925
Substandard [Member]
Loans	20,371	30,428
Substandard [Member] | Commercial Portfolio Segment [Member]
Originated prior	36
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	108
Total Term Loans	144
Revolving Loans Amortized Cost Basis	539
Loans	683	8,662
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	13,519
Originated 2017	255
Originated 2018	0
Originated 2019	2,029
Originated 2020	832
Originated 2021	0
Total Term Loans	16,635
Revolving Loans Amortized Cost Basis	0
Loans	16,635	18,902
Substandard [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Substandard [Member] | Residential Portfolio Segment [Member]
Originated prior	1,570
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	1,570
Revolving Loans Amortized Cost Basis	0
Loans	1,570	1,366
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	1,483	1,498
Doubtful [Member]
Loans	797	543
Doubtful [Member] | Commercial Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	797	543
Unlikely to be Collected Financing Receivable [Member]
Loans	279	571
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Originated prior	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	0
Revolving Loans Amortized Cost Basis	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 279	$ 571

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Unsecured Loan Limit, Percentage of Shareholders' Equity, California Financial Code	15.00%
Secured and Unsecured Loan Limit Percentage, California Financial Code	25.00%
Loan Commitments Related to Real Estate Loans	$ 36,893	$ 37,456
Corporate Debt Securities [Member]
Concentration Risk, Issuer Relationships	113
Concentration Risk, Aggregate Securities Amount	$ 5,000
Commercial Real Estate Loans [Member]
Loan To Value Ratio Requirement	75.00%
Residential Real Estate Loans [Member]
Loan To Value Ratio Requirement	80.00%
Aggregate Loans [Member] | Customer Concentration Risk [Member]
Concentration Risk, Issuer Relationships	32
Aggregate Loans [Member] | Customer Concentration Risk [Member] | Minimum [Member]
Concentration Risk, Aggregate Loans Amount	$ 5,000

Note 6 - Other Assets and Oth_3

Note 6 - Other Assets and Other Liabilities (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands	Sep. 27, 2019	Jun. 28, 2018	Jun. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)$ / sharesshares	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)
LIHTC Investments			$ 17,006		$ 17,006		$ 18,335
Qualified Affordable Housing Project Investments, Commitment			10,944		10,944		12,202
Deferred Tax Liabilities, Net, Total			12,810		12,810		25,778
Deferred Income Tax Expense (Benefit), Total					(23,673)		(22,805)
Deferred Tax Liabilities, Investments			$ 36,483		36,483		48,021
Debt Securities, Available-for-sale, Unrealized Gain (Loss), Total					$ 123,404		162,434
Lessee, Operating Lease, Term of Contract (Year)			5 years		5 years
Lessee, Operating Lease, Renewal Term (Year)			5 years		5 years
Operating Lease, Liability, Total			$ 20,694		$ 20,694		18,832
Operating Lease, Right-of-Use Asset			$ 20,694		$ 20,694		$ 18,832
Operating Lease, Weighted Average Remaining Lease Term (Year)			4 years 6 months		4 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent			1.73%		1.73%
Operating Lease, Cost			$ 1,658	$ 1,657	$ 3,312	$ 3,317
Contingent Commitment, Remainder of Fiscal Year [Member]
Qualified Affordable Housing Project Investments, Commitment			1,802		1,802
Contingent Commitment, Year 1 [Member]
Qualified Affordable Housing Project Investments, Commitment			4,908		4,908
Contingent Commitment, Year 2 [Member]
Qualified Affordable Housing Project Investments, Commitment			3,485		3,485
Contingent Commitment, Year 3 [Member]
Qualified Affordable Housing Project Investments, Commitment			96		96
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment			81		81
Contingent Commitment, Year 5 [Member]
Qualified Affordable Housing Project Investments, Commitment			74		74
Contingent Commitment, Year 6 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment			$ 498		$ 498
Visa Inc. [Member]
Share Price (in dollars per share) | $ / shares			$ 233.82		$ 233.82
VISA Class B Common Stock [Member]
Investment Owned, Balance, Shares (in shares) | shares			211		211
Conversion Rate of Class B Common Stock into Class A Common Stock	1.6228	1.6298
VISA Class B Common Stock [Member] | Reported Value Measurement [Member]
Investment Owned, at Fair Value			$ 0		$ 0

Note 6 - Other Assets and Oth_4

Note 6 - Other Assets and Other Liabilities - Summary of Other Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2021	Dec. 31, 2020
Federal Reserve Bank stock	[1]	$ 14,069	$ 14,069
Other investments		158	158
Total cost method equity investments		14,227	14,227
Life insurance cash surrender value		61,755	60,444
Right-of-use asset		20,694	18,832
Limited partnership investments		17,006	18,335
Interest receivable		34,793	33,022
Prepaid assets		3,747	4,572
Other assets		11,236	10,471
Total other assets		$ 163,458	$ 159,903
[1]	A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank’s paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

Note 6 - Other Assets and Oth_5

Note 6 - Other Assets and Other Liabilities - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investment loss included in pre-tax income	$ 600	$ 600	$ 1,200	$ 1,200
Tax credits recognized in provision for income taxes	$ 225	$ 225	$ 450	$ 450

Note 6 - Other Assets and Oth_6

Note 6 - Other Assets and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Net deferred tax liability	$ 12,810	$ 25,778
Operating lease liability	20,694	18,832
Securities purchases pending settlement	64,993	29,000
Other liabilities	40,654	38,988
Total other liabilities	$ 139,151	$ 112,598

Note 6 - Other Assets and Oth_7

Note 6 - Other Assets and Other Liabilities - Maturity of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
2021	$ 3,068
2022	5,649
2023	4,941
2024	3,353
2025	2,162
Thereafter	2,251
Total minimum lease payments	21,424
Less: discount	(730)
Operating lease liability	$ 20,694	$ 18,832

Note 7 - Goodwill and Identif_3

Note 7 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2021	Dec. 31, 2020
Goodwill and Intangible Asset Impairment, Total	$ 0	$ 0	$ 0
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0	$ 0

Note 7 - Goodwill and Identif_4

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Goodwill	$ 121,673	$ 121,673

Note 7 - Goodwill and Identif_5

Note 7 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - Core Deposits [Member] - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated Amortization	$ (55,841)	$ (55,704)

Note 7 - Goodwill and Identif_6

Note 7 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
For the six months ended June 30, 2021 (actual)	$ 68	$ 73	$ 137	$ 146
2021	3,068		3,068
2022	5,649		5,649
Core Deposits [Member]
For the six months ended June 30, 2021 (actual)			137
2021	132		132
2022	252		252
2023	236		236
2024	222		222
2025	$ 125		$ 125

Note 8 - Deposits and Borrowe_3

Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Demand Deposit Overdrafts	$ 708		$ 708		$ 682
Interest Expense, Time Deposits, $100,000 or More	$ 68	$ 79	$ 146	$ 158

Note 8 - Deposits and Borrowe_4

Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Noninterest-bearing	$ 2,872,920	$ 2,725,177
Transaction	1,200,634	1,102,601
Savings	1,849,258	1,703,812
Time deposits less than $100 thousand	76,474	79,825
Time deposits $100 thousand through $250 thousand	50,754	49,323
Time deposits more than $250 thousand	26,349	27,241
Total deposits	$ 6,076,389	$ 5,687,979

Note 8 - Deposits and Borrowe_5

Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Collateral Carrying Value	$ 239,518	$ 255,214
Short-term borrowed funds	90,043	102,545
Agency Residential MBS [Member]
Collateral Carrying Value	52,266	67,019
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 187,252	$ 188,195

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual)	6 Months Ended
	Jun. 30, 2021
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate	10.00%

Note 9 - Fair Value Measureme_4

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Jun. 30, 2021		Dec. 31, 2020
Investment securities available for sale		$ 4,304,162		$ 4,063,185
Agency Residential MBS [Member]
Investment securities available for sale		510,460		652,952
US Government Agencies Debt Securities [Member]
Investment securities available for sale		137		154
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		104,603		111,010
Debt Security, Corporate, US [Member]
Investment securities available for sale		2,596,850		2,117,978
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Investment securities available for sale				24,990
Fair Value, Recurring [Member]
Investment securities available for sale		4,304,162		4,063,185
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		4,304,162		4,063,185
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Agency Residential MBS [Member]
Investment securities available for sale		510,460		652,952
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		510,460		652,952
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale		137		154
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		137		154
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		104,603		111,010
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		104,603		111,010
Fair Value, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Debt Security, Corporate, US [Member]
Investment securities available for sale		2,596,850		2,117,978
Fair Value, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		2,596,850		2,117,978
Fair Value, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member]
Investment securities available for sale		1,092,112		1,156,101
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		1,092,112		1,156,101
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		$ 0	[1]	0	[2]
Fair Value, Recurring [Member] | Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Investment securities available for sale				24,990
Fair Value, Recurring [Member] | Commercial Paper, Not Included with Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale				0
Fair Value, Recurring [Member] | Commercial Paper, Not Included with Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale				24,990
Fair Value, Recurring [Member] | Commercial Paper, Not Included with Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale	[2]			$ 0
[1]	There were no transfers in to or out of level 3 during the three months ended March 31, 2021.
[2]	There were no transfers in to or out of level 3 during the year ended December 31, 2020.

Note 9 - Fair Value Measureme_5

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Fair Value	$ 3,584	$ 9,161
Total Losses	0	0
Fair Value, Inputs, Level 1 [Member]
Fair Value	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value	0	0
Fair Value, Inputs, Level 3 [Member]
Fair Value	3,584	9,161
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	3,409	3,710
Total Losses	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	3,409	3,710
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Fair Value		5,270
Total Losses		0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value		0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value		0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value		5,270
Impaired Loans [Member] | Residential Portfolio Segment [Member]
Fair Value	175	181
Total Losses	0	0
Impaired Loans [Member] | Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value	0	0
Impaired Loans [Member] | Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value	0	0
Impaired Loans [Member] | Residential Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	$ 175	$ 181

Note 9 - Fair Value Measureme_6

Note 9 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Reported Value Measurement [Member]
Cash and due from banks	$ 939,929	$ 621,275
Debt securities held to maturity	414,413	515,589
Loans	1,171,097	1,232,389
Deposits	6,076,389	5,687,979
Short-term borrowed funds	90,043	102,545
Estimate of Fair Value Measurement [Member]
Cash and due from banks	939,929	621,275
Debt securities held to maturity	424,599	529,678
Loans	1,188,428	1,290,938
Deposits	6,076,339	5,688,049
Short-term borrowed funds	90,043	102,545
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	939,929	621,275
Debt securities held to maturity	0	0
Loans	0	0
Deposits	0	0
Short-term borrowed funds	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and due from banks	0	0
Debt securities held to maturity	424,599	529,678
Loans	0	0
Deposits	5,922,812	5,531,590
Short-term borrowed funds	90,043	102,545
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Cash and due from banks	0	0
Debt securities held to maturity	0	0
Loans	1,188,428	1,290,938
Deposits	153,527	156,459
Short-term borrowed funds	$ 0	$ 0

Note 10 - Commitments and Con_2

Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2019	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2017
Loan Commitments, Not Unconditionally Cancellable	$ 36,893		$ 36,893
Unfunded Loan Commitments	248,111		248,111	$ 277,878
Guarantor Obligations, Current Carrying Value	580		580	580
Other Liabilities [Member]
Reserve for Unfunded Commitments	101		101	101
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount	4,070		4,070	2,357
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount	0		0	0
Customer Refunds [Member]
Loss Contingency Accrual, Ending Balance	994	$ 5,843	994		$ 5,542
Loss Contingency Accrual, Period Increase (Decrease), Total		$ 301
Loss Contingency Accrual, Payments	$ 54		$ 439	$ 4,410

Note 11 - Earnings Per Common_3

Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	510	599	554	556

Note 11 - Earnings Per Common_4

Note 11 - Earnings Per Common Share - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income applicable to common equity (numerator)	$ 22,579	$ 19,562	$ 42,726	$ 36,524
Weighted average number of common shares outstanding - basic (denominator) (in shares)	26,865	26,935	26,843	27,001
Basic earnings per common share (in dollars per share)	$ 0.84	$ 0.72	$ 1.59	$ 1.35
Add common stock equivalents for options (in shares)	22	16	22	23
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	26,887	26,951	26,865	27,024
Diluted earnings per common share (in dollars per share)	$ 0.84	$ 0.72	$ 1.59	$ 1.35