Westamerica Bancorporation (WABC) 10-Q 5 May 21 2021 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2021	Apr. 29, 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	Q1
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 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		26,865,423

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets:
Cash and due from banks	$ 866,457	$ 621,275
Debt securities available for sale	3,990,570	4,063,185
Debt securities held to maturity, net of allowance for credit losses of $9 at March 31, 2021 and $9 at December 31, 2020 (Fair value of $480,549 at March 31, 2021 and $529,678 at December 31, 2020)	469,259	515,589
Loans	1,293,756	1,256,243
Allowance for credit losses on loans	(23,483)	(23,854)
Loans, net of allowance for credit losses on loans	1,270,273	1,232,389
Premises and equipment, net	32,216	32,813
Identifiable intangibles, net	1,035	1,104
Goodwill	121,673	121,673
Other assets	160,998	159,903
Total Assets	6,912,481	6,747,931
Liabilities:
Noninterest-bearing deposits	2,798,542	2,725,177
Interest-bearing deposits	3,125,291	2,962,802
Total deposits	5,923,833	5,687,979
Short-term borrowed funds	95,479	102,545
Other borrowed funds	1,681	0
Other liabilities	79,356	112,598
Total Liabilities	6,100,349	5,903,122
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,864 at March 31, 2021 and 26,807 at December 31, 2020	469,850	466,006
Deferred compensation	35	35
Accumulated other comprehensive income	68,901	114,412
Retained earnings	273,346	264,356
Total Shareholders' Equity	812,132	844,809
Total Liabilities and Shareholders' Equity	$ 6,912,481	$ 6,747,931

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt securities held to maturity, fair value	$ 480,549	$ 529,678
Debt securities held to maturity, allowance for credit losses	$ 9	$ 9
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)	26,864	26,807
Common stock, outstanding (in shares)	26,864	26,807

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Interest and Fee Income:
Loans	$ 14,581	$ 13,809
Equity securities	110	103
Debt securities available for sale	24,889	21,315
Debt securities held to maturity	2,598	3,908
Interest-bearing cash	138	856
Total Interest and Fee Income	42,316	39,991
Interest Expense:
Deposits	459	434
Short-term borrowed funds	16	8
Total Interest Expense	475	442
Net Interest and Fee Income	41,841	39,549
Provision for Credit Losses	0	4,300
Net Interest and Fee Income After Provision For Credit Losses	41,841	35,249
Noninterest Income:
Other noninterest income	783	1,587
Total Noninterest Income	10,189	11,648
Noninterest Expense:
Salaries and related benefits	12,665	13,018
Occupancy and equipment	4,880	4,932
Outsourced data processing services	2,390	2,405
Professional fees	942	389
Courier service	504	491
Amortization of identifiable intangibles	69	73
Other noninterest expense	3,456	3,356
Total Noninterest Expense	24,906	24,664
Income Before Income Taxes	27,124	22,233
Provision for income taxes	6,977	5,271
Net Income	$ 20,147	$ 16,962
Average Common Shares Outstanding (in shares)	26,821	27,068
Average Diluted Common Shares Outstanding (in shares)	26,842	27,139
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.75	$ 0.63
Diluted earnings (in dollars per share)	0.75	0.63
Dividends paid (in dollars per share)	$ 0.41	$ 0.41
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 3,304	$ 4,248
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,560	2,358
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,601	1,468
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	801	777
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	601	579
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	469	506
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 70	$ 125

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 20,147	$ 16,962
Other comprehensive loss:
Changes in net unrealized gains on debt securities available for sale	(64,614)	(36,744)
Deferred tax benefit	19,103	10,864
Changes in net unrealized gains on debt securities available for sale, net of tax	(45,511)	(25,880)
Total comprehensive loss	$ (25,364)	$ (8,918)

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]Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Deferred Compensation, Share-based Payments [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	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 (numerator)														16,962	16,962
Other comprehensive income (loss)													(25,880)		(25,880)
Exercise of stock options (in shares)											40
Exercise of stock options											$ 2,266				2,266
Restricted stock activity (in shares)											10
Restricted stock activity											$ 534				534
Stock based compensation											525				525
Stock awarded to employees											$ 21				21
Retirement of common stock (in shares)											(180)
Retirement of common stock											$ (3,105)			(6,142)	(9,247)
Dividends														(11,104)	(11,104)
Balance (in shares) at Mar. 31, 2020											26,932
Balance at Mar. 31, 2020											$ 465,701	771	171	238,903	705,546
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 (numerator)														20,147	20,147
Other comprehensive income (loss)													(45,511)		(45,511)
Exercise of stock options (in shares)											52
Exercise of stock options											$ 2,960				2,960
Restricted stock activity (in shares)											9
Restricted stock activity											$ 526				526
Stock based compensation											368				368
Stock awarded to employees											$ 56				56
Retirement of common stock (in shares)											(4)
Retirement of common stock											$ (66)			(166)	(232)
Dividends														(10,991)	(10,991)
Balance (in shares) at Mar. 31, 2021											26,864
Balance at Mar. 31, 2021											$ 469,850	$ 35	$ 68,901	$ 273,346	$ 812,132

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Dividends per share (in dollars per share)	$ 0.41	$ 0.41

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net income	$ 20,147	$ 16,962
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion	4,256	6,304
Credit loss provision	0	4,300
Net amortization of deferred net loan fees	(1,246)	(18)
Decrease (increase) in interest income receivable	1,961	(201)
Increase in income taxes payable	7,450	4,572
(Increase) decrease in deferred tax asset	(472)	879
Increase in other assets	(3,004)	(3,625)
Stock option compensation expense	368	525
Increase in interest expense payable	16	10
Increase in other liabilities	2,796	24,743
Net Cash Provided by Operating Activities	32,272	54,451
Investing Activities:
Net (disbursements) repayments of loans	(36,544)	4,545
Purchases of debt securities available for sale	(385,553)	(438,122)
Proceeds from sale/maturity/calls of debt securities available for sale	367,499	266,561
Proceeds from maturity/calls of debt securities held to maturity	45,447	55,112
Purchases of premises and equipment	(145)	(1,796)
Net Cash Used in Investing Activities	(9,296)	(113,700)
Financing Activities:
Net change in deposits	235,854	(13,195)
Net change in borrowings	(5,385)	21,736
Exercise of stock options	2,960	2,266
Retirement of common stock	(232)	(9,247)
Common stock dividends paid	(10,991)	(11,104)
Net Cash Provided by (Used in) Financing Activities	222,206	(9,544)
Net Change In Cash and Due from Banks	245,182	(68,793)
Cash and Due from Banks at Beginning of Period	621,275	373,421
Cash and Due from Banks at End of Period	866,457	304,628
Supplemental disclosure of noncash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	3,301	0
Securities purchases pending settlement	5,000	607
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	1,618	1,659
Interest paid for the period	$ 459	$ 432

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	3 Months Ended
	Mar. 31, 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 March 31, 2021 not 10 December 31, 2020.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	3 Months Ended
	Mar. 31, 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 these 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 loss at least quarterly. For available for sale debt securities, a decline in fair value due to credit loss 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 three March 31, 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	3 Months Ended
	Mar. 31, 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 March 31, 2021 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 558,366 $ 19,124 $ - $ 577,490 Securities of U.S. Government entities 146 - (1 ) 145 Obligations of states and political subdivisions 101,817 4,310 (10 ) 106,117 Corporate securities 2,076,354 79,548 (6,536 ) 2,149,366 Collateralized loan obligations 1,156,067 2,596 (1,211 ) 1,157,452 Total debt securities available for sale 3,892,750 105,578 (7,758 ) 3,990,570 Debt securities held to maturity Agency residential MBS 212,463 5,623 (19 ) 218,067 Non-agency residential MBS 1,266 10 (7 ) 1,269 Obligations of states and political subdivisions 255,539 5,683 - 261,222 Total debt securities held to maturity 469,268 11,316 (26 ) 480,558 Total $ 4,362,018 $ 116,894 $ (7,784 ) $ 4,471,128 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 March 31, 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 $ 222,016 $ 224,112 $ 49,319 $ 49,593 Over 1 to 5 years 851,915 894,939 129,579 132,526 Over 5 to 10 years 1,829,139 1,861,379 76,641 79,103 Over 10 years 431,314 432,650 - - Subtotal 3,334,384 3,413,080 255,539 261,222 MBS 558,366 577,490 213,729 219,336 Total $ 3,892,750 $ 3,990,570 $ 469,268 $ 480,558 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 March 31, 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 March 31, 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 $ 95 $ - 1 $ 15 $ - 2 $ 110 $ - Securities of U.S. 1 145 (1 ) - - - 1 145 (1 ) Obligations of states 5 2,420 (10 ) - - - 5 2,420 (10 ) Corporate securities 19 210,618 (6,515 ) 1 14,981 (21 ) 20 225,599 (6,536 ) Collateralized loan 49 359,104 (1,211 ) - - - 49 359,104 (1,211 ) Total 75 $ 572,382 $ (7,737 ) 2 $ 14,996 $ (21 ) 77 $ 587,378 $ (7,758 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At March 31, 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 $ 200 $ - 3 $ 686 $ (19 ) 5 $ 886 $ (19 ) Non-agency residential 1 680 (7 ) - - - 1 680 (7 ) Total 3 $ 880 $ (7 ) 3 $ 686 $ (19 ) 6 $ 1,566 $ (26 ) 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 March 31, 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 loss on debt securities available for sale may As of March 31, 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 $14.98 million at March 31, 2021, July 2021. The following table presents the activity in the allowance for credit losses for debt securities held to maturity: For the Three Months Ended March 31, 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 March 31, 2021, Credit Risk Profile by Credit Rating At March 31, 2021 AAA/AA/A BBB BB/B/NR Total (In thousands) Agency residential MBS $ 212,463 $ - $ - $ 212,463 Non-agency residential MBS 325 - 941 1,266 Obligations of states and political subdivisions 227,479 21,821 6,239 255,539 Total $ 440,267 $ 21,821 $ 7,180 $ 469,268 There were no debt securities held to maturity on nonaccrual status or past due 30 March 31, 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 Ended March 31, 2021 2020 (In thousands) Taxable $ 25,198 $ 21,964 Tax-exempt from regular federal income tax 2,399 3,362 Total interest income from investment securities $ 27,597 $ 25,326

Note 4 - Loans, Allowance for C

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned	3 Months Ended
	Mar. 31, 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 March 31, At December 31, 2021 2020 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 232,898 $ 186,945 Other 215,744 207,861 Total Commercial 448,642 394,806 Commercial Real Estate 548,802 564,300 Construction 115 129 Residential Real Estate 21,552 23,471 Consumer Installment & Other 274,645 273,537 Total $ 1,293,756 $ 1,256,243 The following summarizes activity in the allowance for credit losses: Allowance for Credit Losses For the Three Months Ended March 31, 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 Provision (reversal) 336 (167 ) - (4 ) (165 ) - Chargeoffs - - - - (929 ) (929 ) Recoveries 13 12 - - 533 558 Total allowance for credit losses $ 9,554 $ 5,505 $ 6 $ 43 $ 8,375 $ 23,483 The growth in commercial loan balances was due to originations of Paycheck Protection Program (“PPP”) loans which are 100% not Allowance for Credit Losses For the Three Months Ended March 31, 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 Provision (reversal) 27 59 29 (4 ) 4,189 - 4,300 Chargeoffs (178 ) - - - (1,395 ) - (1,573 ) Recoveries 143 12 - - 421 - 576 Total allowance for credit losses $ 8,336 $ 4,753 $ 107 $ 70 $ 11,538 $ - $ 24,804 The significant increase in the first 2020 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 March 31, 2021 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 440,277 $ 531,702 $ 115 $ 20,215 $ 272,291 $ 1,264,600 Substandard 8,365 17,100 - 1,337 1,520 28,322 Doubtful - - - - 596 596 Loss - - - - 238 238 Total $ 448,642 $ 548,802 $ 115 $ 21,552 $ 274,645 $ 1,293,756 Credit Risk Profile by Internally Assigned Grade At December 31, 2020 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other 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 following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status At March 31, 2021 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 448,428 $ 214 $ - $ - $ - $ 448,642 Commercial real estate 543,356 2,028 - - 3,418 548,802 Construction 115 - - - - 115 Residential real estate 20,863 538 - - 151 21,552 Consumer installment and other 272,039 1,590 482 132 402 274,645 Total $ 1,284,801 $ 4,370 $ 482 $ 132 $ 3,971 $ 1,293,756 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2020 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing 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 March 31, 2021 December 31, 2020. March 31, 2021 December 31, 2020. The following tables provide information on troubled debt restructurings (TDRs): Troubled Debt Restructurings At March 31, 2021 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 4 $ 7,545 $ 5,049 $ - Residential real estate 1 241 178 - Total 5 $ 7,786 $ 5,227 $ - 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 March 31, 2021, not 4013 19 three March 31, 2021, 4013 90 March 31, 2021,loans not three March 31, 2020, not three March 31, 2021 March 31, 2020. three March 31, 2021 March 31, 2020, 12 ninety TDRs of $5,227 thousand included a loan with a balance of $3,120 thousand on nonaccrual status at March 31, 2021. March 31, 2021. March 31, 2021. March 31, 2021, 90 no March 31, 2021. TDRs of $6,221 thousand included a loan with a balance of $3,420 thousand on nonaccrual status at December 31, 2020. December 31, 2020. Four December 31, 2020. December 31, 2020, 90 no December 31, 2020. Based on the most recent analysis performed, the risk category of loans by class of loans is as follows: At March 31, 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 $ 43,588 $ 9,477 $ 18,031 $ 35,795 $ 174,758 $ 117,247 $ 398,896 $ 41,381 $ 440,277 Substandard 38 - - - 7,409 7,447 918 8,365 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 43,626 $ 9,477 $ 18,031 $ 35,795 $ 182,167 $ 117,247 $ 406,343 $ 42,299 $ 448,642 At March 31, 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 $ 157,240 $ 97,374 $ 84,990 $ 82,072 $ 89,094 $ 20,932 $ 531,702 $ - $ 531,702 Substandard 14,124 104 - 2,036 836 - 17,100 - 17,100 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 171,364 $ 97,478 $ 84,990 $ 84,108 $ 89,930 $ 20,932 $ 548,802 $ - $ 548,802 At March 31, 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 $ - $ - $ - $ - $ - $ - $ - $ 115 $ 115 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 115 $ 115 At March 31, 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 $ 20,215 $ - $ - $ - $ - $ - $ 20,215 $ - $ 20,215 Substandard 1,337 - - - - - 1,337 - 1,337 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 21,552 $ - $ - $ - $ - $ - $ 21,552 $ - $ 21,552 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 March 31, 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 $ 18,845 $ 18,423 $ 41,914 $ 56,114 $ 81,237 $ 29,526 $ 246,059 $ 25,980 $ 272,039 30-59 days past due 133 99 390 358 427 51 1,458 132 1,590 60-89 days past due 48 39 21 223 106 - 437 45 482 Past due 90 days or more 21 - 41 13 53 - 128 4 132 Nonaccrual 37 - - - - - 37 365 402 Total $ 19,084 $ 18,561 $ 42,366 $ 56,708 $ 81,823 $ 29,577 $ 248,119 $ 26,526 $ 274,645 There were no loans held for sale at March 31, 2021, December 31, 2020. The Company held no other real estate owned (OREO) at March 31, 2021 December 31, 2020. March 31, 2021 December 31, 2020.

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	3 Months Ended
	Mar. 31, 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 March 31, 2021, not one March 31, 2021, 4, March 31, 2021 December 31, 2020, no no March 31, 2021,

Note 6 - Other Assets and Other

Note 6 - Other Assets and Other Liabilities	3 Months Ended
	Mar. 31, 2021
Notes to Financial Statements
Other Assets and Liabilities Disclosure [Text Block]	Note 6: Other assets consisted of the following: At March 31, 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 61,070 60,444 Right-of-use asset 20,609 18,832 Limited partnership investments 17,637 18,335 Interest receivable 31,061 33,022 Prepaid assets 4,197 4,572 Other assets 12,197 10,471 Total other assets $ 160,998 $ 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. March 31, 2021, first 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 March 31, 2021, December 31, 2020, March 31, 2021, 2021, 2022, 2023, 2024, 2025, 2026, 2027 The amounts recognized in net income for these investments include: For the Three Months Ended March 31, 2021 2020 (In thousands) Investment loss included in pre-tax income $ 600 $ 600 Tax credits recognized in provision for income taxes 200 225 Other liabilities consisted of the following: At March 31, At December 31, 2021 2020 (In thousands) Net deferred tax liability $ 6,204 $ 25,778 Operating lease liability 20,609 18,832 Securities purchases pending settlement 5,000 29,000 Other liabilities 47,543 38,988 Total other liabilities $ 79,356 $ 112,598 The net deferred tax liability at March 31, 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 March 31, 2021. As of March 31, 2021, March 31, 2021. not March 31, 2021. Total lease costs were $1,654 thousand and $1,659 thousand in the three March 31, 2021 March 31, 2020, not three March 31, 2021 March 31, 2020. The following table summarizes the remaining lease payments of operating lease liabilities: Minimum At March 31, 2021 (In thousands) 2021 $ 4,503 2022 5,331 2023 4,619 2024 3,025 2025 1,795 Thereafter 2,114 Total minimum lease payments 21,387 Less: discount (778 ) Present value of lease liability $ 20,609

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	3 Months Ended
	Mar. 31, 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 March 31, 2021 December 31, 2020. three March 31, 2021 December 31, 2020 no The carrying values of goodwill were: At March 31, 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 March 31, 2021 At December 31, 2020 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,773 ) $ 56,808 $ (55,704 ) As of March 31, 2021, 2025, Total Core Deposit Intangibles (In thousands) For the three months ended March 31, 2021 (actual) $ 69 Estimate for the remainder of 2021 200 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	3 Months Ended
	Mar. 31, 2021
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 8: The following table provides additional detail regarding deposits. Deposits At March 31, At December 31, 2021 2020 (In thousands) Noninterest-bearing $ 2,798,542 $ 2,725,177 Interest-bearing: Transaction 1,179,484 1,102,601 Savings 1,791,636 1,703,812 Time deposits less than $100 thousand 78,180 79,825 Time deposits $100 thousand through $250 thousand 49,657 49,323 Time deposits more than $250 thousand 26,334 27,241 Total deposits $ 5,923,833 $ 5,687,979 Demand deposit overdrafts of $1,194 thousand and $682 thousand were included as loan balances at March 31, 2021 December 31, 2020, $100 three March 31, 2021 three March 31, 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 March 31, At December 31, 2021 2020 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 58,799 $ 67,019 Corporate securities 181,119 188,195 Total collateral carrying value $ 239,918 $ 255,214 Total short-term borrowed funds $ 95,479 $ 102,545

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	3 Months Ended
	Mar. 31, 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 March 31, 2021 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 577,490 $ - $ 577,490 $ - Securities of U.S. Government entities 145 - 145 - Obligations of states and political subdivisions 106,117 - 106,117 - Corporate securities 2,149,366 - 2,149,366 - Collateralized loan obligations 1,157,452 - 1,157,452 - Total debt securities available for sale $ 3,990,570 $ - $ 3,990,570 $ - ( 1 There were no 3 three March 31, 2021. At December 31, 2020 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (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 There were no 3 December 31, 2020. Assets Recorded at Fair Value on a Nonrecurring Basis The Company may March 31, 2021 December 31, 2020, For the Three Months Ended At March 31, 2021 March 31, 2021 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial $ 5,186 $ - $ - $ 5,186 $ - Commercial real estate 3,410 - - 3,410 - Residential real estate 177 - - 177 - Total assets measured at fair value on a nonrecurring basis $ 8,773 $ - $ - $ 8,773 $ - 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 3 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 March 31, 2021 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 866,457 $ 866,457 $ 866,457 $ - $ - Debt securities held to maturity 469,259 480,549 - 480,549 - Loans 1,270,273 1,288,836 - - 1,288,836 Financial Liabilities: Deposits $ 5,923,833 $ 5,923,808 $ - $ 5,769,662 $ 154,146 Short-term borrowed funds 95,479 95,479 - 95,479 - Other borrowed funds 1,681 1,681 - 1,681 - At December 31, 2020 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs 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	3 Months Ended
	Mar. 31, 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 March 31, 2021. not March 31, 2021 December 31, 2020. March 31, 2021 December 31, 2020. March 31, 2021 December 31, 2020. 3 rd March 31, 2021 December 31, 2020. March 31, 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, March 31, 2021 December 31, 2020 March 31, 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	3 Months Ended
	Mar. 31, 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 Ended March 31, 2021 2020 (In thousands, except per share data) Net income (numerator) $ 20,147 $ 16,962 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,821 27,068 Basic earnings per common share $ 0.75 $ 0.63 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,821 27,068 Add common stock equivalents for options 21 71 Weighted average number of common shares outstanding - diluted (denominator) 26,842 27,139 Diluted earnings per common share $ 0.75 $ 0.63 For the three March 31, 2021 2020, not

Significant Accounting Policies

Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 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 loss at least quarterly. For available for sale debt securities, a decline in fair value due to credit loss 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 three March 31, 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)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]	At March 31, 2021 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 558,366 $ 19,124 $ - $ 577,490 Securities of U.S. Government entities 146 - (1 ) 145 Obligations of states and political subdivisions 101,817 4,310 (10 ) 106,117 Corporate securities 2,076,354 79,548 (6,536 ) 2,149,366 Collateralized loan obligations 1,156,067 2,596 (1,211 ) 1,157,452 Total debt securities available for sale 3,892,750 105,578 (7,758 ) 3,990,570 Debt securities held to maturity Agency residential MBS 212,463 5,623 (19 ) 218,067 Non-agency residential MBS 1,266 10 (7 ) 1,269 Obligations of states and political subdivisions 255,539 5,683 - 261,222 Total debt securities held to maturity 469,268 11,316 (26 ) 480,558 Total $ 4,362,018 $ 116,894 $ (7,784 ) $ 4,471,128 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 March 31, 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 $ 222,016 $ 224,112 $ 49,319 $ 49,593 Over 1 to 5 years 851,915 894,939 129,579 132,526 Over 5 to 10 years 1,829,139 1,861,379 76,641 79,103 Over 10 years 431,314 432,650 - - Subtotal 3,334,384 3,413,080 255,539 261,222 MBS 558,366 577,490 213,729 219,336 Total $ 3,892,750 $ 3,990,570 $ 469,268 $ 480,558 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 March 31, 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 $ 95 $ - 1 $ 15 $ - 2 $ 110 $ - Securities of U.S. 1 145 (1 ) - - - 1 145 (1 ) Obligations of states 5 2,420 (10 ) - - - 5 2,420 (10 ) Corporate securities 19 210,618 (6,515 ) 1 14,981 (21 ) 20 225,599 (6,536 ) Collateralized loan 49 359,104 (1,211 ) - - - 49 359,104 (1,211 ) Total 75 $ 572,382 $ (7,737 ) 2 $ 14,996 $ (21 ) 77 $ 587,378 $ (7,758 ) Debt Securities Held to Maturity At March 31, 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 $ 200 $ - 3 $ 686 $ (19 ) 5 $ 886 $ (19 ) Non-agency residential 1 680 (7 ) - - - 1 680 (7 ) Total 3 $ 880 $ (7 ) 3 $ 686 $ (19 ) 6 $ 1,566 $ (26 ) 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 Three Months Ended March 31, 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 March 31, 2021 AAA/AA/A BBB BB/B/NR Total (In thousands) Agency residential MBS $ 212,463 $ - $ - $ 212,463 Non-agency residential MBS 325 - 941 1,266 Obligations of states and political subdivisions 227,479 21,821 6,239 255,539 Total $ 440,267 $ 21,821 $ 7,180 $ 469,268
Interest Income from Investments [Table Text Block]	For the Three Months Ended March 31, 2021 2020 (In thousands) Taxable $ 25,198 $ 21,964 Tax-exempt from regular federal income tax 2,399 3,362 Total interest income from investment securities $ 27,597 $ 25,326

Note 4 - Loans, Allowance for_2

Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Tables)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At March 31, At December 31, 2021 2020 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 232,898 $ 186,945 Other 215,744 207,861 Total Commercial 448,642 394,806 Commercial Real Estate 548,802 564,300 Construction 115 129 Residential Real Estate 21,552 23,471 Consumer Installment & Other 274,645 273,537 Total $ 1,293,756 $ 1,256,243
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Allowance for Credit Losses For the Three Months Ended March 31, 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 Provision (reversal) 336 (167 ) - (4 ) (165 ) - Chargeoffs - - - - (929 ) (929 ) Recoveries 13 12 - - 533 558 Total allowance for credit losses $ 9,554 $ 5,505 $ 6 $ 43 $ 8,375 $ 23,483 Allowance for Credit Losses For the Three Months Ended March 31, 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 Provision (reversal) 27 59 29 (4 ) 4,189 - 4,300 Chargeoffs (178 ) - - - (1,395 ) - (1,573 ) Recoveries 143 12 - - 421 - 576 Total allowance for credit losses $ 8,336 $ 4,753 $ 107 $ 70 $ 11,538 $ - $ 24,804
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade At March 31, 2021 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 440,277 $ 531,702 $ 115 $ 20,215 $ 272,291 $ 1,264,600 Substandard 8,365 17,100 - 1,337 1,520 28,322 Doubtful - - - - 596 596 Loss - - - - 238 238 Total $ 448,642 $ 548,802 $ 115 $ 21,552 $ 274,645 $ 1,293,756 Credit Risk Profile by Internally Assigned Grade At December 31, 2020 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other 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 March 31, 2021 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 448,428 $ 214 $ - $ - $ - $ 448,642 Commercial real estate 543,356 2,028 - - 3,418 548,802 Construction 115 - - - - 115 Residential real estate 20,863 538 - - 151 21,552 Consumer installment and other 272,039 1,590 482 132 402 274,645 Total $ 1,284,801 $ 4,370 $ 482 $ 132 $ 3,971 $ 1,293,756 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2020 Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 Days or More and Accruing 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 March 31, 2021 Period-End Individual Number of Pre-Modification Period-End Credit Loss Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial real estate 4 $ 7,545 $ 5,049 $ - Residential real estate 1 241 178 - Total 5 $ 7,786 $ 5,227 $ - 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 March 31, 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 $ 43,588 $ 9,477 $ 18,031 $ 35,795 $ 174,758 $ 117,247 $ 398,896 $ 41,381 $ 440,277 Substandard 38 - - - 7,409 7,447 918 8,365 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 43,626 $ 9,477 $ 18,031 $ 35,795 $ 182,167 $ 117,247 $ 406,343 $ 42,299 $ 448,642 At March 31, 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 $ 157,240 $ 97,374 $ 84,990 $ 82,072 $ 89,094 $ 20,932 $ 531,702 $ - $ 531,702 Substandard 14,124 104 - 2,036 836 - 17,100 - 17,100 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 171,364 $ 97,478 $ 84,990 $ 84,108 $ 89,930 $ 20,932 $ 548,802 $ - $ 548,802 At March 31, 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 $ - $ - $ - $ - $ - $ - $ - $ 115 $ 115 Substandard - - - - - - - - - Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ 115 $ 115 At March 31, 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 $ 20,215 $ - $ - $ - $ - $ - $ 20,215 $ - $ 20,215 Substandard 1,337 - - - - - 1,337 - 1,337 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 21,552 $ - $ - $ - $ - $ - $ 21,552 $ - $ 21,552 At March 31, 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 $ 18,845 $ 18,423 $ 41,914 $ 56,114 $ 81,237 $ 29,526 $ 246,059 $ 25,980 $ 272,039 30-59 days past due 133 99 390 358 427 51 1,458 132 1,590 60-89 days past due 48 39 21 223 106 - 437 45 482 Past due 90 days or more 21 - 41 13 53 - 128 4 132 Nonaccrual 37 - - - - - 37 365 402 Total $ 19,084 $ 18,561 $ 42,366 $ 56,708 $ 81,823 $ 29,577 $ 248,119 $ 26,526 $ 274,645

Note 6 - Other Assets and Oth_2

Note 6 - Other Assets and Other Liabilities (Tables)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Schedule of Other Assets [Table Text Block]	At March 31, 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 61,070 60,444 Right-of-use asset 20,609 18,832 Limited partnership investments 17,637 18,335 Interest receivable 31,061 33,022 Prepaid assets 4,197 4,572 Other assets 12,197 10,471 Total other assets $ 160,998 $ 159,903
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months Ended March 31, 2021 2020 (In thousands) Investment loss included in pre-tax income $ 600 $ 600 Tax credits recognized in provision for income taxes 200 225
Other Liabilities [Table Text Block]	At March 31, At December 31, 2021 2020 (In thousands) Net deferred tax liability $ 6,204 $ 25,778 Operating lease liability 20,609 18,832 Securities purchases pending settlement 5,000 29,000 Other liabilities 47,543 38,988 Total other liabilities $ 79,356 $ 112,598
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Minimum At March 31, 2021 (In thousands) 2021 $ 4,503 2022 5,331 2023 4,619 2024 3,025 2025 1,795 Thereafter 2,114 Total minimum lease payments 21,387 Less: discount (778 ) Present value of lease liability $ 20,609

Note 7 - Goodwill and Identif_2

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Schedule of Goodwill [Table Text Block]	At March 31, 2021 At December 31, 2020 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At March 31, 2021 At December 31, 2020 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,773 ) $ 56,808 $ (55,704 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Total Core Deposit Intangibles (In thousands) For the three months ended March 31, 2021 (actual) $ 69 Estimate for the remainder of 2021 200 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)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Deposit Liabilities, Type [Table Text Block]	Deposits At March 31, At December 31, 2021 2020 (In thousands) Noninterest-bearing $ 2,798,542 $ 2,725,177 Interest-bearing: Transaction 1,179,484 1,102,601 Savings 1,791,636 1,703,812 Time deposits less than $100 thousand 78,180 79,825 Time deposits $100 thousand through $250 thousand 49,657 49,323 Time deposits more than $250 thousand 26,334 27,241 Total deposits $ 5,923,833 $ 5,687,979
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At March 31, At December 31, 2021 2020 Repurchase agreements: (In thousands) Collateral securing borrowings: Agency residential MBS $ 58,799 $ 67,019 Corporate securities 181,119 188,195 Total collateral carrying value $ 239,918 $ 255,214 Total short-term borrowed funds $ 95,479 $ 102,545

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At March 31, 2021 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 577,490 $ - $ 577,490 $ - Securities of U.S. Government entities 145 - 145 - Obligations of states and political subdivisions 106,117 - 106,117 - Corporate securities 2,149,366 - 2,149,366 - Collateralized loan obligations 1,157,452 - 1,157,452 - Total debt securities available for sale $ 3,990,570 $ - $ 3,990,570 $ - At December 31, 2020 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (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 Three Months Ended At March 31, 2021 March 31, 2021 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Loans: Commercial $ 5,186 $ - $ - $ 5,186 $ - Commercial real estate 3,410 - - 3,410 - Residential real estate 177 - - 177 - Total assets measured at fair value on a nonrecurring basis $ 8,773 $ - $ - $ 8,773 $ - 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 March 31, 2021 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 866,457 $ 866,457 $ 866,457 $ - $ - Debt securities held to maturity 469,259 480,549 - 480,549 - Loans 1,270,273 1,288,836 - - 1,288,836 Financial Liabilities: Deposits $ 5,923,833 $ 5,923,808 $ - $ 5,769,662 $ 154,146 Short-term borrowed funds 95,479 95,479 - 95,479 - Other borrowed funds 1,681 1,681 - 1,681 - At December 31, 2020 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs 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)	3 Months Ended
	Mar. 31, 2021
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months Ended March 31, 2021 2020 (In thousands, except per share data) Net income (numerator) $ 20,147 $ 16,962 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,821 27,068 Basic earnings per common share $ 0.75 $ 0.63 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,821 27,068 Add common stock equivalents for options 21 71 Weighted average number of common shares outstanding - diluted (denominator) 26,842 27,139 Diluted earnings per common share $ 0.75 $ 0.63

Note 3 - Investment Securitie_2

Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 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)	0	(7)	$ 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	844,502	888,577
Debt Securities, Available-for-sale, Amortized Cost, Total	3,892,750	3,900,751
Debt Securities, Available-for-sale, Total	3,990,570	4,063,185
Debt Securities, Held-to-maturity, Nonaccrual	0
Debt Security, Corporate, US [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	2,076,354	1,986,995
Debt Securities, Available-for-sale, Total	2,149,366	2,117,978
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	$ 14,980
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	Mar. 31, 2021	Dec. 31, 2020
Debt securities available for sale, amortized cost	$ 3,892,750	$ 3,900,751
Debt securities available for sale, gross unrealized gains	105,578	163,576
Debt securities available for sale, gross unrealized losses	(7,758)	(1,142)
Debt securities available for sale	3,990,570	4,063,185
Held to maturity	469,268	515,598
Debt securities held to maturity, gross unrecognized gains	11,316	14,121
Debt securities held to maturity, gross unrecognized losses	(26)	(32)
Debt securities held to maturity, fair value	480,558	529,687
Debt securities, amortized cost	4,362,018	4,416,349
Debt securities, gross unrecognized gains	116,894	177,697
Debt securities, gross unrecognized losses	(7,784)	(1,174)
Debt securities, fair value	4,471,128	4,592,872
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	558,366	630,174
Debt securities available for sale, gross unrealized gains	19,124	22,779
Debt securities available for sale, gross unrealized losses	0	(1)
Debt securities available for sale	577,490	652,952
Held to maturity	212,463	240,332
Debt securities held to maturity, gross unrecognized gains	5,623	6,852
Debt securities held to maturity, gross unrecognized losses	(19)	(32)
Debt securities held to maturity, fair value	218,067	247,152
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	146	154
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	(1)	0
Debt securities available for sale	145	154
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	101,817	105,679
Debt securities available for sale, gross unrealized gains	4,310	5,332
Debt securities available for sale, gross unrealized losses	(10)	(1)
Debt securities available for sale	106,117	111,010
Held to maturity	255,539	273,922
Debt securities held to maturity, gross unrecognized gains	5,683	7,243
Debt securities held to maturity, gross unrecognized losses	0	0
Debt securities held to maturity, fair value	261,222	281,165
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	2,076,354	1,986,995
Debt securities available for sale, gross unrealized gains	79,548	131,025
Debt securities available for sale, gross unrealized losses	(6,536)	(42)
Debt securities available for sale	2,149,366	2,117,978
Collateralized Debt Obligations [Member]
Debt securities available for sale, amortized cost	1,156,067	1,152,766
Debt securities available for sale, gross unrealized gains	2,596	4,433
Debt securities available for sale, gross unrealized losses	(1,211)	(1,098)
Debt securities available for sale	1,157,452	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	1,266	1,344
Debt securities held to maturity, gross unrecognized gains	10	26
Debt securities held to maturity, gross unrecognized losses	(7)	0
Debt securities held to maturity, fair value	$ 1,269	$ 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	Mar. 31, 2021	Dec. 31, 2020
Investment securities available for sale, amortized cost, 1 year or less	$ 222,016	$ 212,140
Investment securities available for sale, fair value, 1 year or less	224,112	213,715
Investment securities held to maturity, amortized cost, 1 year or less	49,319	54,526
Investment securities held to maturity, fair value, 1 year or less	49,593	54,927
Investment securities available for sale, amortized cost, over 1 to 5 years	851,915	922,170
Investment securities available for sale, fair value, over 1 to 5 years	894,939	974,438
Investment securities held to maturity, amortized cost, over 1 to 5 years	129,579	129,786
Investment securities held to maturity, fair value, over 1 to 5 years	132,526	133,195
Investment securities available for sale, amortized cost, over 5 to 10 years	1,829,139	1,767,747
Investment securities available for sale, fair value, over 5 to 10 years	1,861,379	1,851,184
Investment securities held to maturity, amortized cost, over 5 to 10 years	76,641	89,610
Investment securities held to maturity, fair value, over 5 to 10 years	79,103	93,043
Investment securities available for sale, amortized cost, over 10 years	431,314	368,520
Investment securities available for sale, fair value, over 10 years	432,650	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	3,334,384	3,270,577
Investment securities available for sale, fair value, subtotal	3,413,080	3,410,233
Investment securities held to maturity, amortized cost, subtotal	255,539	273,922
Investment securities held to maturity, fair value, subtotal	261,222	281,165
Investment securities available for sale, amortized cost	558,366	630,174
Investment securities available for sale, fair value	577,490	652,952
Investment securities held to maturity, amortized cost	213,729	241,676
Investment securities held to maturity, fair value	219,336	248,522
Investment securities available for sale, amortized cost	3,892,750	3,900,751
Investment securities available for sale, fair value	3,990,570	4,063,185
Investment securities held to maturity, amortized cost	469,268	515,598
Investment securities held to maturity, fair value	$ 480,558	$ 529,687

Note 3 - Investment Securitie_5

Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Available for sale securities, less than 12 months, number of investment positions	75	40
Available for sale securities, less than 12 months, fair value	$ 572,382	$ 269,526
Available for sale securities, less than 12 months, unrealized losses	$ (7,737)	$ (1,100)
Available for sale securities, 12 months or longer, number of investment positions	2	2
Available for sale securities, 12 months or longer, fair value	$ 14,996	$ 14,980
Available for sale securities, 12 months or longer, unrealized losses	$ (21)	$ (42)
Available for sale securities, total, number of investment positions	77	42
Available for sale securities, total, fair value	$ 587,378	$ 284,506
Available for sale securities, total, unrealized losses	$ (7,758)	$ (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	$ 880
Held to Maturity securities, less than 12 months, unrecognized losses	$ (7)
Held to Maturity securities, 12 months or longer, number of investment positions	3
Held to Maturity securities, 12 months or longer, fair value	$ 686
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (19)
Held to Maturity securities, total, number of investment positions	6
Held to Maturity securities, total, fair value	$ 1,566
Held to Maturity securities, total, unrecognized losses	$ (26)
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	$ 95	$ 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	$ 15	$ 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	$ 110	$ 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	$ 200	$ 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	$ 686	$ 788
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (19)	$ (31)
Held to Maturity securities, total, number of investment positions	5	6
Held to Maturity securities, total, fair value	$ 886	$ 1,165
Held to Maturity securities, total, unrecognized losses	$ (19)	$ (32)
US Government Agencies Debt Securities [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	$ 145	$ 154
Available for sale securities, less than 12 months, unrealized losses	$ (1)	$ 0
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	1	1
Available for sale securities, total, fair value	$ 145	$ 154
Available for sale securities, total, unrealized losses	$ (1)	$ 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	$ 680
Held to Maturity securities, less than 12 months, unrecognized losses	$ (7)
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	$ 680
Held to Maturity securities, total, unrecognized losses	$ (7)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	5	2
Available for sale securities, less than 12 months, fair value	$ 2,420	$ 692
Available for sale securities, less than 12 months, unrealized losses	$ (10)	$ (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	5	2
Available for sale securities, total, fair value	$ 2,420	$ 692
Available for sale securities, total, unrealized losses	$ (10)	$ (1)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	19	0
Available for sale securities, less than 12 months, fair value	$ 210,618	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ (6,515)	$ 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	$ 14,981	$ 14,963
Available for sale securities, 12 months or longer, unrealized losses	$ (21)	$ (42)
Available for sale securities, total, number of investment positions	20	1
Available for sale securities, total, fair value	$ 225,599	$ 14,963
Available for sale securities, total, unrealized losses	$ (6,536)	$ (42)
Collateralized Loan Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions	49
Available for sale securities, less than 12 months, fair value	$ 359,104
Available for sale securities, less than 12 months, unrealized losses	$ (1,211)
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	49
Available for sale securities, total, fair value	$ 359,104
Available for sale securities, total, unrealized losses	$ (1,211)
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
	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Balance, end of prior period	$ 9		$ 0
Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal)	0	$ (7)	0
Chargeoffs	0		0
Recoveries	0		0
Total ending balance	9	9	16
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance, end of prior period	0		16
Total ending balance		0
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance, end of prior period	$ 9		$ 16
Total ending balance		$ 9

Note 3 - Investment Securitie_7

Note 3 - Investment Securities - Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Held to maturity	$ 469,268	$ 515,598
AAA/AA/A [Member]
Held to maturity	440,267
BBB [Member]
Held to maturity	21,821
BB/B/NR [Member]
Held to maturity	7,180
Agency Residential MBS [Member]
Held to maturity	212,463	240,332
Agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	212,463
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	1,266	1,344
Non-agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	325
Non-agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Non-agency Residential MBS [Member] | BB/B/NR [Member]
Held to maturity	941
US States and Political Subdivisions Debt Securities [Member]
Held to maturity	255,539	$ 273,922
US States and Political Subdivisions Debt Securities [Member] | AAA/AA/A [Member]
Held to maturity	227,479
US States and Political Subdivisions Debt Securities [Member] | BBB [Member]
Held to maturity	21,821
US States and Political Subdivisions Debt Securities [Member] | BB/B/NR [Member]
Held to maturity	$ 6,239

Note 3 - Investment Securitie_8

Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Taxable	$ 25,198	$ 21,964
Tax-exempt from regular federal income tax	2,399	3,362
Total interest income from investment securities	$ 27,597	$ 25,326

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
	Mar. 31, 2021USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 23,483	$ 24,804	$ 23,854	$ 19,484
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	$ 0		0
Troubled Debt Restructurings During Period	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Troubled Debt Restructuring	$ 5,227		6,221
Other Real Estate, Reserve	0		0
Mortgage Loans in Process of Foreclosure, Amount	365		346
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	0		0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	5,505	$ 4,753	5,660	4,064
Financing Receivable, Troubled Debt Restructuring	5,049		6,040
Allowance for Credit Losses, Collateral-dependent Loans	$ 0		$ 0
Number of Collateral-dependent Loans	1		1
Collateral-dependent Loans, Balance	$ 3,120		$ 3,420
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	43	70	47	206
Financing Receivable, Troubled Debt Restructuring	$ 178		$ 181
Number of Collateral-dependent Loans	4		2
Collateral-dependent Loans, Balance	$ 365		$ 346
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 8,375	$ 11,538	8,936	$ 6,445
Collateral-dependent Loans, Balance			446
Commercial Real Estate [Member]
Financing Receivable, Number of Loans With Deferred Payments	1
Financing Receivable, Principal and Interest Deferred Payments	$ 2,300
Other Consumer Loan [Member]
Financing Receivable, Principal and Interest Deferred Payments	1,800
Restructured Loans [Member]
Financing Receivable, Troubled Debt Restructuring	5,227		6,221
Impaired Loans, Restructured, Nonaccrual Status	$ 3,120		$ 3,420
Other Commercial Real Estate Loans [Member]
Number of Collateral-dependent Loans	4		4
Collateral-dependent Loans, Balance	$ 7,600		$ 7,600
Indirect Consumer Installment Loans [Member]
Collateral-dependent Loans, Balance	108
Nonperforming Financial Instruments [Member]
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 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	Mar. 31, 2021	Dec. 31, 2020
Loans	$ 1,293,756	$ 1,256,243
Commercial Portfolio Segment [Member]
Loans	448,642	394,806
Commercial Portfolio Segment [Member] | Paycheck Protection Program Loans [Member]
Loans	232,898	186,945
Commercial Portfolio Segment [Member] | Other Commercial Portfolio Segment [Member]
Loans	215,744	207,861
Commercial Real Estate Portfolio Segment [Member]
Loans	548,802	564,300
Construction Portfolio Segment [Member]
Loans	115	129
Residential Portfolio Segment [Member]
Loans	21,552	23,471
Consumer Portfolio Segment [Member]
Loans	$ 274,645	$ 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
	Mar. 31, 2021	Mar. 31, 2020
Balance at beginning of period	$ 23,854	$ 19,484
Provision (reversal)	0	4,300
Chargeoffs	(929)	(1,573)
Recoveries	558	576
Total allowance for credit losses	23,483	24,804
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
Provision (reversal)		0
Chargeoffs		0
Recoveries		0
Total allowance for credit losses		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	9,205	4,959
Provision (reversal)	336	27
Chargeoffs	0	(178)
Recoveries	13	143
Total allowance for credit losses	9,554	8,336
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	5,660	4,064
Provision (reversal)	(167)	59
Chargeoffs	0	0
Recoveries	12	12
Total allowance for credit losses	5,505	4,753
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	109
Provision (reversal)	0	29
Chargeoffs	0	0
Recoveries	0	0
Total allowance for credit losses	6	107
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	47	206
Provision (reversal)	(4)	(4)
Chargeoffs	0	0
Recoveries	0	0
Total allowance for credit losses	43	70
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	8,936	6,445
Provision (reversal)	(165)	4,189
Chargeoffs	(929)	(1,395)
Recoveries	533	421
Total allowance for credit losses	$ 8,375	11,538
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	Mar. 31, 2021	Dec. 31, 2020
Loans	$ 1,293,756	$ 1,256,243
Pass [Member]
Loans	1,264,600	1,224,701
Substandard [Member]
Loans	28,322	30,428
Doubtful [Member]
Loans	596	543
Unlikely to be Collected Financing Receivable [Member]
Loans	238	571
Commercial Portfolio Segment [Member]
Loans	448,642	394,806
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	440,277	386,144
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	8,365	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	548,802	564,300
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	531,702	545,398
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	17,100	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	115	129
Construction Portfolio Segment [Member] | Pass [Member]
Loans	115	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	21,552	23,471
Residential Portfolio Segment [Member] | Pass [Member]
Loans	20,215	22,105
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	1,337	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	274,645	273,537
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	272,291	270,925
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,520	1,498
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	596	543
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 238	$ 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	Mar. 31, 2021	Dec. 31, 2020
Current and accruing	$ 1,284,801	$ 1,247,222
Nonaccrual	3,971	4,329
Total loans	1,293,756	1,256,243
Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	4,370	3,493
Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	482	749
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	132	450
Commercial Portfolio Segment [Member]
Current and accruing	448,428	394,004
Nonaccrual	0	83
Total loans	448,642	394,806
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	214	713
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	6
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Commercial Real Estate Portfolio Segment [Member]
Current and accruing	543,356	560,580
Nonaccrual	3,418	3,720
Total loans	548,802	564,300
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	2,028	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member]
Current and accruing	115	129
Nonaccrual	0	0
Total loans	115	129
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Residential Portfolio Segment [Member]
Current and accruing	20,863	22,269
Nonaccrual	151	161
Total loans	21,552	23,471
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	538	770
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	271
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	0	0
Consumer Portfolio Segment [Member]
Current and accruing	272,039	270,240
Nonaccrual	402	365
Total loans	274,645	273,537
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	1,590	2,010
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	482	472
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	$ 132	$ 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	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Number of Contracts	5	7
Pre-Modification Carrying Value	$ 7,786	$ 8,608
Period-End Carrying Value	5,227	6,221
Period-End Individual Impairment Allowance	$ 0	$ 0
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	4	6
Pre-Modification Carrying Value	$ 7,545	$ 8,367
Period-End Carrying Value	5,049	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	178	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	Mar. 31, 2021	Dec. 31, 2020
Loans	$ 1,293,756	$ 1,256,243
Current	1,284,801	1,247,222
Nonaccrual	3,971	4,329
Financial Asset, 30 to 59 Days Past Due [Member]
Past due	4,370	3,493
Financial Asset, 60 to 89 Days Past Due [Member]
Past due	482	749
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	132	450
Pass [Member]
Loans	1,264,600	1,224,701
Substandard [Member]
Loans	28,322	30,428
Doubtful [Member]
Loans	596	543
Unlikely to be Collected Financing Receivable [Member]
Loans	238	571
Consumer Portfolio Segment [Member]
Loans	274,645	273,537
Current	272,039	270,240
Nonaccrual	402	365
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,590	2,010
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	482	472
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	132	450
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	272,291	270,925
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,520	1,498
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	596	543
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	238	571
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	19,084
Current	18,845
Nonaccrual	37
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	133
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	48
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	21
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	18,561
Current	18,423
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	99
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	39
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	42,366
Current	41,914
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	390
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	21
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	41
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	56,708
Current	56,114
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	358
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	223
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	13
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	81,823
Current	81,237
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	427
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	106
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	53
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member]
Loans	29,577
Current	29,526
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	51
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2021 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	248,119
Current	246,059
Nonaccrual	37
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,458
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	437
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	128
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	26,526
Current	25,980
Nonaccrual	365
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	132
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	45
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	4
Commercial Portfolio Segment [Member]
Originated prior	43,626
Originated 2017	9,477
Originated 2018	18,031
Originated 2019	35,795
Originated 2020	182,167
Originated 2021	117,247
Total Term Loans	406,343
Revolving Loans Amortized Cost Basis	42,299
Loans	448,642	394,806
Current	448,428	394,004
Nonaccrual	0	83
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	214	713
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	6
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Commercial Portfolio Segment [Member] | Pass [Member]
Originated prior	43,588
Originated 2017	9,477
Originated 2018	18,031
Originated 2019	35,795
Originated 2020	174,758
Originated 2021	117,247
Total Term Loans	398,896
Revolving Loans Amortized Cost Basis	41,381
Loans	440,277	386,144
Commercial Portfolio Segment [Member] | Substandard [Member]
Originated prior	38
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	7,409
Originated 2021
Total Term Loans	7,447
Revolving Loans Amortized Cost Basis	918
Loans	8,365	8,662
Commercial Portfolio Segment [Member] | Doubtful [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
Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [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
Commercial Real Estate Portfolio Segment [Member]
Originated prior	171,364
Originated 2017	97,478
Originated 2018	84,990
Originated 2019	84,108
Originated 2020	89,930
Originated 2021	20,932
Total Term Loans	548,802
Revolving Loans Amortized Cost Basis	0
Loans	548,802	564,300
Current	543,356	560,580
Nonaccrual	3,418	3,720
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	2,028	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Originated prior	157,240
Originated 2017	97,374
Originated 2018	84,990
Originated 2019	82,072
Originated 2020	89,094
Originated 2021	20,932
Total Term Loans	531,702
Revolving Loans Amortized Cost Basis	0
Loans	531,702	545,398
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Originated prior	14,124
Originated 2017	104
Originated 2018	0
Originated 2019	2,036
Originated 2020	836
Originated 2021	0
Total Term Loans	17,100
Revolving Loans Amortized Cost Basis	0
Loans	17,100	18,902
Commercial Real Estate Portfolio Segment [Member] | Doubtful [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
Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [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
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	115
Loans	115	129
Current	115	129
Nonaccrual	0	0
Construction Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member] | Pass [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	115
Loans	115	129
Construction Portfolio Segment [Member] | Substandard [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
Construction Portfolio Segment [Member] | Doubtful [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
Construction Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [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
Residential Portfolio Segment [Member]
Originated prior	21,552
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	21,552
Revolving Loans Amortized Cost Basis	0
Loans	21,552	23,471
Current	20,863	22,269
Nonaccrual	151	161
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	538	770
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	271
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Residential Portfolio Segment [Member] | Pass [Member]
Originated prior	20,215
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	20,215
Revolving Loans Amortized Cost Basis	0
Loans	20,215	22,105
Residential Portfolio Segment [Member] | Substandard [Member]
Originated prior	1,337
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Originated 2021	0
Total Term Loans	1,337
Revolving Loans Amortized Cost Basis	0
Loans	1,337	1,366
Residential Portfolio Segment [Member] | Doubtful [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
Residential Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [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

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Mar. 31, 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	$ 36,082	$ 37,456
Corporate Debt Securities [Member]
Concentration Risk, Issuer Relationships	94
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	31
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	Mar. 31, 2021USD ($)$ / shares	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)	Sep. 30, 2019shares
LIHTC Investments			$ 17,637		$ 18,335
Qualified Affordable Housing Project Investments, Commitment			11,240		12,202
Deferred Tax Liabilities, Net, Total			6,204		25,778
Deferred Income Tax Expense (Benefit), Total			(22,715)		(22,805)
Deferred Tax Liabilities, Investments			28,919		48,021
Debt Securities, Available-for-sale, Unrealized Gain (Loss), Total			$ 97,820		162,434
Lessee, Operating Lease, Term of Contract (Year)			5 years
Lessee, Operating Lease, Renewal Term (Year)			5 years
Operating Lease, Liability, Total			$ 20,609		18,832
Operating Lease, Right-of-Use Asset			$ 20,609		$ 18,832
Operating Lease, Weighted Average Remaining Lease Term (Year)			4 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent			1.83%
Operating Lease, Cost			$ 1,654	$ 1,659
Contingent Commitment, Remainder of Fiscal Year [Member]
Qualified Affordable Housing Project Investments, Commitment			2,098
Contingent Commitment, Year 1 [Member]
Qualified Affordable Housing Project Investments, Commitment			4,908
Contingent Commitment, Year 2 [Member]
Qualified Affordable Housing Project Investments, Commitment			3,485
Contingent Commitment, Year 3 [Member]
Qualified Affordable Housing Project Investments, Commitment			96
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment			81
Contingent Commitment, Year 5 [Member]
Qualified Affordable Housing Project Investments, Commitment			74
Contingent Commitment, Year 6 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment			$ 498
Visa Inc. [Member]
Share Price (in dollars per share) | $ / shares			$ 211.73
VISA Class B Common Stock [Member]
Investment Owned, Balance, Shares (in shares) | shares						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

Note 6 - Other Assets and Oth_4

Note 6 - Other Assets and Other Liabilities - Summary of Other Assets (Details) - USD ($) $ in Thousands		Mar. 31, 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		61,070	60,444
Right-of-use asset		20,609	18,832
Limited partnership investments		17,637	18,335
Interest receivable		31,061	33,022
Prepaid assets		4,197	4,572
Other assets		12,197	10,471
Total other assets		$ 160,998	$ 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
	Mar. 31, 2021	Mar. 31, 2020
Investment loss included in pre-tax income	$ 600	$ 600
Tax credits recognized in provision for income taxes	$ 200	$ 225

Note 6 - Other Assets and Oth_6

Note 6 - Other Assets and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Net deferred tax liability	$ 6,204	$ 25,778
Operating lease liability	20,609	18,832
Securities purchases pending settlement	5,000	29,000
Other liabilities	47,543	38,988
Total other liabilities	$ 79,356	$ 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	Mar. 31, 2021	Dec. 31, 2020
2021	$ 4,503
2022	5,331
2023	4,619
2024	3,025
2025	1,795
Thereafter	2,114
Total minimum lease payments	21,387
Less: discount	(778)
Operating lease liability	$ 20,609	$ 18,832

Note 7 - Goodwill and Identif_3

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

Note 7 - Goodwill and Identif_4

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 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	Mar. 31, 2021	Dec. 31, 2020
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated Amortization	$ (55,773)	$ (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
	Mar. 31, 2021	Mar. 31, 2020
For the three months ended March 31, 2021 (actual)	$ 69	$ 73
2021	4,503
2022	5,331
Core Deposits [Member]
For the three months ended March 31, 2021 (actual)	69
2021	200
2022	252
2023	236
2024	222
2025	$ 125

Note 8 - Deposits and Borrowe_3

Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Demand Deposit Overdrafts	$ 1,194		$ 682
Interest Expense, Time Deposits, $100,000 or More	$ 78	$ 79

Note 8 - Deposits and Borrowe_4

Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Noninterest-bearing	$ 2,798,542	$ 2,725,177
Transaction	1,179,484	1,102,601
Savings	1,791,636	1,703,812
Time deposits less than $100 thousand	78,180	79,825
Time deposits $100 thousand through $250 thousand	49,657	49,323
Time deposits more than $250 thousand	26,334	27,241
Total deposits	$ 5,923,833	$ 5,687,979

Note 8 - Deposits and Borrowe_5

Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Collateral Carrying Value	$ 239,918	$ 255,214
Short-term borrowed funds	95,479	102,545
Agency Residential MBS [Member]
Collateral Carrying Value	58,799	67,019
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 181,119	$ 188,195

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual)	3 Months Ended
	Mar. 31, 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		Mar. 31, 2021		Dec. 31, 2020
Investment securities available for sale		$ 3,990,570		$ 4,063,185
Agency Residential MBS [Member]
Investment securities available for sale		577,490		652,952
US Government Agencies Debt Securities [Member]
Investment securities available for sale		145		154
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		106,117		111,010
Debt Security, Corporate, US [Member]
Investment securities available for sale		2,149,366		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		3,990,570		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		3,990,570		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		577,490		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		577,490		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		145		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		145		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		106,117		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		106,117		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		2,149,366		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		2,149,366		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		1,157,452		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		1,157,452		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	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value	$ 8,773	$ 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	8,773	9,161
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Fair Value	5,186	5,270
Total Losses	0	0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value	0	0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value	0	0
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	5,186	5,270
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	3,410	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	3,410	3,710
Impaired Loans [Member] | Residential Portfolio Segment [Member]
Fair Value	177	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	$ 177	$ 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	Mar. 31, 2021	Dec. 31, 2020
Reported Value Measurement [Member]
Cash and due from banks	$ 866,457	$ 621,275
Debt securities held to maturity	469,259	515,589
Loans	1,270,273	1,232,389
Deposits	5,923,833	5,687,979
Short-term borrowed funds	95,479	102,545
Other borrowed funds	1,681
Estimate of Fair Value Measurement [Member]
Cash and due from banks	866,457	621,275
Debt securities held to maturity	480,549	529,678
Loans	1,288,836	1,290,938
Deposits	5,923,808	5,688,049
Short-term borrowed funds	95,479	102,545
Other borrowed funds	1,681
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	866,457	621,275
Debt securities held to maturity	0	0
Loans	0	0
Deposits	0	0
Short-term borrowed funds	0	0
Other borrowed funds	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	480,549	529,678
Loans	0	0
Deposits	5,769,662	5,531,590
Short-term borrowed funds	95,479	102,545
Other borrowed funds	1,681
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	1,288,836	1,290,938
Deposits	154,146	156,459
Short-term borrowed funds	0	$ 0
Other borrowed funds	$ 0

Note 10 - Commitments and Con_2

Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Jun. 30, 2019	Dec. 31, 2020	Dec. 31, 2017
Loan Commitments, Not Unconditionally Cancellable	$ 36,082
Unfunded Loan Commitments	264,131		$ 277,878
Guarantor Obligations, Current Carrying Value	580		580
Other Liabilities [Member]
Reserve for Unfunded Commitments	101		101
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount	4,062		2,357
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount	0		0
Customer Refunds [Member]
Loss Contingency Accrual, Ending Balance	1,048	$ 5,843		$ 5,542
Loss Contingency Accrual, Period Increase (Decrease), Total		$ 301
Loss Contingency Accrual, Payments	$ 385		$ 4,410

Note 11 - Earnings Per Common_3

Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	598	514

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
	Mar. 31, 2021	Mar. 31, 2020
Net income (numerator)	$ 20,147	$ 16,962
Weighted average number of common shares outstanding - basic (in shares)	26,821	27,068
Basic earnings per common share (in dollars per share)	$ 0.75	$ 0.63
Add common stock equivalents for options (in shares)	21	71
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	26,842	27,139
Diluted earnings per common share (in dollars per share)	$ 0.75	$ 0.63