Westamerica Bancorporation (WABC) 10-Q 5 Nov 20 2020 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Oct. 29, 2020
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	Q3
Document Fiscal Year Focus	2020
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
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		26,868,988

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets:
Cash and due from banks	$ 398,964	$ 373,421
Debt securities available for sale	3,983,994	3,078,846
Debt securities held to maturity, net of allowance for credit losses of $16 at September 30, 2020 and $ - at December 31, 2019 (Fair value of $593,701 at September 30, 2020 and $744,296 at December 31, 2019)	577,795	738,072
Loans	1,310,009	1,126,664
Allowance for credit losses on loans	(24,142)	(19,484)
Loans, net of allowance for credit losses on loans	1,285,867	1,107,180
Other real estate owned	43	43
Premises and equipment, net	33,437	34,597
Identifiable intangibles, net	1,173	1,391
Goodwill	121,673	121,673
Other assets	160,269	164,332
Total Assets	6,563,215	5,619,555
Liabilities:
Noninterest-bearing deposits	2,684,028	2,240,112
Interest-bearing deposits	2,855,162	2,572,509
Total deposits	5,539,190	4,812,621
Short-term borrowed funds	107,973	30,928
Other liabilities	90,476	44,589
Total Liabilities	5,737,639	4,888,138
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,898 at September 30, 2020 and 27,062 at December 31, 2019	467,201	465,460
Deferred compensation	35	771
Accumulated other comprehensive income	103,623	26,051
Retained earnings	254,717	239,135
Total Shareholders' Equity	825,576	731,417
Total Liabilities and Shareholders' Equity	$ 6,563,215	$ 5,619,555

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt securities held to maturity, fair value	$ 593,701	$ 744,296
Debt securities held to maturity, allowance for credit losses	$ 16	$ 0
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)	26,898	27,062
Common stock, outstanding (in shares)	26,898	27,062

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest and Loan Fee Income:
Loans	$ 15,291	$ 14,431	$ 44,378	$ 44,050
Equity securities	103	92	309	289
Debt securities available for sale	22,652	18,736	66,396	54,080
Debt securities held to maturity	3,235	4,535	10,759	14,788
Interest-bearing cash	84	1,901	1,053	5,597
Total Interest and Loan Fee Income	41,365	39,695	122,895	118,804
Interest Expense:
Deposits	450	447	1,308	1,410
Short-term borrowed funds	16	8	34	27
Other borrowed funds	0	0	1	0
Total Interest Expense	466	455	1,343	1,437
Net Interest and Loan Fee Income	40,899	39,240	121,552	117,367
Provision for Credit Losses	0	0	4,300	0
Net Interest and Loan Fee Income After Provision for Credit Losses	40,899	39,240	117,252	117,367
Noninterest Income:
Life insurance gains	0	0	0	433
Securities gains	0		71
Securities gains		0		50
Other noninterest income	833	1,051	3,241	2,897
Total Noninterest Income	10,476	11,809	31,678	35,676
Noninterest Expense:
Salaries and related benefits	12,540	12,559	38,458	38,757
Occupancy and equipment	5,014	5,199	14,737	15,163
Outsourced data processing services	2,338	2,374	7,067	7,110
Professional fees	669	645	1,701	1,791
Courier service	500	456	1,499	1,349
Amortization of identifiable intangibles	72	76	218	465
Loss contingency	0	0	0	553
Other noninterest expense	3,470	2,724	10,341	9,589
Total Noninterest Expense	24,603	24,033	74,021	74,777
Income Before Income Taxes	26,772	27,016	74,909	78,266
Provision for income taxes	6,721	6,626	18,334	18,605
Net Income	$ 20,051	$ 20,390	$ 56,575	$ 59,661
Average Common Shares Outstanding (in shares)	26,930	26,986	26,977	26,924
Average Diluted Common Shares Outstanding (in shares)	26,946	27,027	26,998	26,976
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.74	$ 0.76	$ 2.10	$ 2.22
Diluted earnings (in dollars per share)	0.74	0.75	2.10	2.21
Dividends paid (in dollars per share)	$ 0.41	$ 0.41	$ 1.23	$ 1.22
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 3,298	$ 4,510	$ 10,697	$ 13,508
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,860	2,494	7,495	7,708
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,611	1,641	4,538	4,789
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	756	733	2,247	2,199
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	606	725	1,703	2,080
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	454	580	1,380	1,742
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 58	$ 75	$ 306	$ 270

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income	$ 20,051	$ 20,390	$ 56,575	$ 59,661
Other comprehensive income:
Changes in unrealized gains on debt securities available for sale	14,042	10,407	110,200	85,822
Deferred tax expense	(4,151)	(3,077)	(32,578)	(25,372)
Reclassification of gains included in net income	0	0	(71)	0
Deferred tax expense on gains included in net income	0	0	21	0
Changes in net unrealized gains on debt securities available for sale, net of tax	9,891	7,330	77,572	60,450
Total comprehensive income	$ 29,942	$ 27,720	$ 134,147	$ 120,111

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, 2018						26,730					26,730
Balance at Dec. 31, 2018				$ (2,801)	$ (2,801)	$ 448,351	$ 1,395	$ (39,996)	$ 203,040	$ 612,790	$ 448,351	$ 1,395	$ (39,996)	$ 205,841	$ 615,591
Net income applicable to common equity (numerator)														59,661	59,661
Other comprehensive income													60,450		60,450
Stock based compensation											1,484				1,484
Stock awarded to employees											$ 80				80
Retirement of common stock (in shares)											(8)
Retirement of common stock											$ (136)			(352)	(488)
Dividends														(32,849)	(32,849)
Exercise of stock options (in shares)											222
Exercise of stock options											$ 11,177				11,177
Restricted stock activity (in shares)											18
Restricted stock activity											$ 1,697	(624)			1,073
Stock awarded to employees (in shares)											1
Shares issued from stock warrant exercise, net of repurchase (in shares)											51
Balance (in shares) at Sep. 30, 2019											27,014
Balance at Sep. 30, 2019											$ 462,653	771	20,454	229,500	713,378
Balance (in shares) at Jun. 30, 2019											26,962
Balance at Jun. 30, 2019											$ 459,369	771	13,124	220,173	693,437
Net income applicable to common equity (numerator)														20,390	20,390
Other comprehensive income													7,330		7,330
Stock based compensation											402				402
Stock awarded to employees											$ 15				15
Dividends														(11,063)	(11,063)
Exercise of stock options (in shares)											52
Exercise of stock options											$ 2,867				2,867
Balance (in shares) at Sep. 30, 2019											27,014
Balance at Sep. 30, 2019											$ 462,653	771	20,454	229,500	713,378
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 applicable to common equity (numerator)														56,575	56,575
Other comprehensive income													77,572		77,572
Stock based compensation											1,500				1,500
Stock awarded to employees											$ 85				85
Retirement of common stock (in shares)											(228)
Retirement of common stock											$ (3,952)			(7,782)	(11,734)
Dividends														(33,263)	(33,263)
Exercise of stock options (in shares)											53
Exercise of stock options											$ 2,838				2,838
Restricted stock activity (in shares)											10
Restricted stock activity											$ 1,270	(736)			534
Stock awarded to employees (in shares)											1
Balance (in shares) at Sep. 30, 2020											26,898
Balance at Sep. 30, 2020											$ 467,201	35	103,623	254,717	825,576
Balance (in shares) at Jun. 30, 2020											26,933
Balance at Jun. 30, 2020											$ 467,351	35	93,732	246,958	808,076
Net income applicable to common equity (numerator)														20,051	20,051
Other comprehensive income													9,891		9,891
Stock based compensation											450				450
Stock awarded to employees											$ 19				19
Retirement of common stock (in shares)											(35)
Retirement of common stock											$ (619)			(1,249)	(1,868)
Dividends														(11,043)	(11,043)
Balance (in shares) at Sep. 30, 2020											26,898
Balance at Sep. 30, 2020											$ 467,201	$ 35	$ 103,623	$ 254,717	$ 825,576

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Dividends per share (in dollars per share)	$ 0.41	$ 0.41	$ 1.23	$ 1.22

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating Activities:
Net income	$ 56,575	$ 59,661
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18,482	15,178
Provision for Credit Losses	4,300	0
Net amortization of deferred loan fees	(2,803)	(215)
Stock option compensation expense	1,500	1,484
Life insurance gains	0	(433)
Securities gains	(71)
Securities gains		(50)
Net changes in:
Interest income receivable	(1,982)	323
Other assets	(4,397)	(2,073)
Income taxes payable	(520)	(3,386)
Net deferred tax asset	325	6,386
Interest expense payable	33	19
Other liabilities	24,798	(12,233)
Net Cash Provided by Operating Activities	96,240	64,661
Investing Activities:
Net (disbursements) repayments of loans	(181,894)	73,026
Proceeds from life insurance policies	0	1,273
Purchases of debt securities available for sale	(1,612,633)	(732,690)
Proceeds from sale of equity securities	0	1,797
Proceeds from sale/maturity/calls of debt securities available for sale	807,064	502,928
Proceeds from maturity/calls of debt securities held to maturity	156,993	184,525
Purchases of premises and equipment	(1,682)	(2,495)
Proceeds from sale of foreclosed assets	0	307
Net Cash (Used in) Provided by Investing Activities	(832,152)	28,671
Financing Activities:
Net change in deposits	726,569	(70,216)
Net change in short-term borrowings	77,045	(5,601)
Exercise of stock options	2,838	11,177
Retirement of common stock	(11,734)	(488)
Common stock dividends paid	(33,263)	(32,849)
Net Cash Provided by (Used in) Financing Activities	761,455	(97,977)
Net Change In Cash and Due from Banks	25,543	(4,645)
Cash and Due from Banks at Beginning of Period	373,421	420,284
Cash and Due from Banks at End of Period	398,964	415,639
Supplemental disclosure of non cash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	6,457	23,587
Amount recognized upon initial adoption of ASU 2016-02 included above	0	15,325
Securities purchases pending settlement	0	20,114
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	4,905	5,123
Interest paid for the period	1,310	1,417
Income tax payments for the period	$ 18,708	$ 16,021

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	9 Months Ended
	Sep. 30, 2020
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 nine September 30, 2020 not 10 December 31, 2019.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	9 Months Ended
	Sep. 30, 2020
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, 2019. 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 Certain amounts in prior periods have been reclassified to conform to the current presentation. Recently Adopted Accounting Standards In the nine September 30, 2020, FASB ASU 2016 13, Financial Instruments – Credit Losses (Topic 326 June 16, 2016. The Company adopted the ASU provisions on a modified retrospective basis on January 1, 2020. no The following table summarizes the impact of adoption of ASU 2016 13. January 1, 2020 Balance, Impact of As reported prior to adoption adoption of under of ASU 2016-13 ASU 2016-13 ASU 2016-13 (In thousands) Assets: Allowance for credit losses on loans: Commercial $ 4,959 $ 3,385 $ 8,344 Commercial real estate 4,064 618 4,682 Construction 109 (31 ) 78 Residential real estate 206 (132 ) 74 Consumer and other installment loans 6,445 1,878 8,323 Unallocated 3,701 (3,701 ) - Allowance for credit losses on loans: $ 19,484 $ 2,017 $ 21,501 Allowance for credit losses on debt securities held to maturity - 16 16 Liabilities Allowance for credit losses for unfunded commitments 2,160 (2,107 ) 53 Debt Securities. Debt securities consist of the U.S. Treasury, securities of government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, and collateralized loan obligations. 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 AFS debt securities in unrealized loss positions are evaluated for credit related loss at least quarterly. For AFS 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 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. 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 loan losses. 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 FASB ASU 2018 13 Fair Value Measurements (Topic 820 August 2018. The provisions of the ASU were effective January 1, 2020 January 1, 2020. not Recently Issued Accounting Standards FASB ASU 2019 12 Income Taxes (Topic 740 December 2019. 740 December 15, 2020, January 1, 2021. 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	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 3 : Investment Securities The Company’s marketable equity securities were sold in the third 2019. nine September 30, 2019, no September 30, 2020 December 31, 2019. During the quarter and nine September 30, 2020, no At September 30, 2020 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 720,123 $ 25,174 $ - $ 745,297 Agency commercial MBS 3,601 - (16 ) 3,585 Securities of U.S. Government entities 163 - - 163 Obligations of states and political subdivisions 121,951 5,223 (2 ) 127,172 Corporate securities 2,098,444 114,582 (199 ) 2,212,827 Commercial paper 224,862 29 (75 ) 224,816 Collateralized loan obligations 667,735 3,053 (654 ) 670,134 Total debt securities available for sale 3,836,879 148,061 (946 ) 3,983,994 Debt securities held to maturity Agency residential MBS 272,460 7,648 (39 ) 280,069 Non-agency residential MBS 2,020 36 - 2,056 Obligations of states and political subdivisions 303,331 8,261 - 311,592 Total debt securities held to maturity 577,811 15,945 (39 ) 593,717 Total $ 4,414,690 $ 164,006 $ (985 ) $ 4,577,711 At December 31, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 19,999 $ 1 $ - $ 20,000 Securities of U.S. Government sponsored entities 111,251 14 (98 ) 111,167 Agency residential MBS 934,592 10,996 (5,838 ) 939,750 Agency commercial MBS 3,711 - (3 ) 3,708 Securities of U.S. Government entities 553 - (9 ) 544 Obligations of states and political subdivisions 159,527 3,656 (44 ) 163,139 Corporate securities 1,805,479 29,183 (879 ) 1,833,783 Collateralized loan obligations 6,748 7 - 6,755 Total debt securities available for sale 3,041,860 43,857 (6,871 ) 3,078,846 Debt securities held to maturity Agency residential MBS 353,937 766 (2,235 ) 352,468 Non-agency residential MBS 2,354 22 - 2,376 Obligations of states and political subdivisions 381,781 7,672 (1 ) 389,452 Total debt securities held to maturity 738,072 8,460 (2,236 ) 744,296 Total $ 3,779,932 $ 52,317 $ (9,107 ) $ 3,823,142 The amortized cost and fair value of debt securities by contractual maturity are shown in the following tables at the dates indicated: At September 30, 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 $ 452,154 $ 454,493 $ 63,044 $ 63,504 Over 1 to 5 years 973,305 1,026,667 132,750 136,640 Over 5 to 10 years 1,480,374 1,544,476 107,537 111,448 Over 10 years 207,322 209,476 - - Subtotal 3,113,155 3,235,112 303,331 311,592 MBS 723,724 748,882 274,480 282,125 Total $ 3,836,879 $ 3,983,994 $ 577,811 $ 593,717 At December 31, 2019 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 $ 294,698 $ 295,255 $ 70,378 $ 70,602 Over 1 to 5 years 1,104,775 1,122,391 161,911 165,126 Over 5 to 10 years 670,595 683,277 149,492 153,724 Over 10 years 33,489 34,465 - - Subtotal 2,103,557 2,135,388 381,781 389,452 MBS 938,303 943,458 356,291 354,844 Total $ 3,041,860 $ 3,078,846 $ 738,072 $ 744,296 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 September 30, 2020 December 31, 2019, no An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At September 30, 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 $ 98 $ - 1 $ 21 $ - 2 $ 119 $ - Agency commercial MBS 1 3,585 (16 ) - - - 1 3,585 (16 ) Securities of U.S. Government entities 1 163 - - - - 1 163 - Obligations of states and political subdivisions 5 2,447 (2 ) - - - 5 2,447 (2 ) Corporate securities - - - 2 18,263 (199 ) 2 18,263 (199 ) Commercial paper 4 99,874 (75 ) - - - 4 99,874 (75 ) Collateralized loan obligations 29 216,358 (654 ) - - - 29 216,358 (654 ) Total 41 $ 322,525 $ (747 ) 3 $ 18,284 $ (199 ) 44 $ 340,809 $ (946 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At September 30, 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 2 $ 153 $ (1 ) 3 $ 1,109 $ (38 ) 5 $ 1,262 $ (39 ) 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 September 30, 2020. 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 September 30, 2020 December 31, 2019, An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At December 31, 2019 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) Securities of U.S. Government sponsored entities 1 $ 9,951 $ (49 ) 3 $ 45,877 $ (49 ) 4 $ 55,828 $ (98 ) Agency residential MBS 6 11,674 (100 ) 47 347,384 (5,738 ) 53 359,058 (5,838 ) Agency commercial MBS 1 3,708 (3 ) - - - 1 3,708 (3 ) Securities of U.S. Government entities - - - 2 544 (9 ) 2 544 (9 ) Obligations of states and political subdivisions - - - 7 4,163 (44 ) 7 4,163 (44 ) Corporate securities 8 71,577 (162 ) 11 64,380 (717 ) 19 135,957 (879 ) Total 16 $ 96,910 $ (314 ) 70 $ 462,348 $ (6,557 ) 86 $ 559,258 $ (6,871 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At December 31, 2019 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 6 $ 12,098 $ (87 ) 54 $ 277,203 $ (2,148 ) 60 $ 289,301 $ (2,235 ) Obligations of states and political subdivisions - - - 1 251 (1 ) 1 251 (1 ) Total 6 $ 12,098 $ (87 ) 55 $ 277,454 $ (2,149 ) 61 $ 289,552 $ (2,236 ) 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, 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 $14.9 million at September 30, 2020, 2021, The following table presents the activity in the allowance for credit losses for debt securities held to maturity: For the Nine Months Ended September 30, 2020 (In thousands) Allowance for credit losses: Beginning balance, prior to adoption of ASU 2016-13 $ - Impact of adopting ASU 2016-13 16 Provision - Chargeoffs - Recoveries - Total ending balance $ 16 Agency mortgage-backed securities were assigned no The following table summarizes the amortized cost of debt securities held to maturity at September 30, 2020, Credit Risk Profile by Credit Rating At September 30, 2020 (In thousands) AAA/AA/A BBB BB/B Total Agency residential MBS $ 272,460 $ - $ - $ 272,460 Non-agency residential MBS 1,005 - 1,015 2,020 Obligations of states and political subdivisions 303,230 101 - 303,331 Total $ 576,695 $ 101 $ 1,015 $ 577,811 There were no debt securities held to maturity on nonaccrual status or past due 30 September 30, 2020. The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from federal income tax: For the Three Months For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands) Taxable $ 23,079 $ 19,586 $ 67,963 $ 56,992 Tax-exempt from federal income tax 2,911 3,777 9,501 12,165 Total interest income from investment securities $ 25,990 $ 23,363 $ 77,464 $ 69,157

Note 4 - Loans, Allowance for L

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 4 : Loans , Allowance for Loan Losses/ Credit Losses and Other Real Estate Owned A summary of the major categories of loans outstanding is shown in the following tables at the dates indicated. At September 30, At December 31, 2020 2019 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 243,982 $ - Other 201,623 222,085 Total commercial 445,605 222,085 Commercial Real Estate 563,707 578,758 Construction 140 1,618 Residential Real Estate 25,076 32,748 Consumer Installment & Other 275,481 291,455 Total $ 1,310,009 $ 1,126,664 The following summarizes activity in the allowance for loan losses/credit losses: Allowance for Credit Losses For the Three Months Ended September 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ 24,529 Provision (reversal) 867 1,030 - (5 ) (1,892 ) - Chargeoffs - - - - (872 ) (872 ) Recoveries 46 12 - - 427 485 Total allowance for credit losses $ 8,985 $ 5,665 $ 7 $ 52 $ 9,433 $ 24,142 Allowance for Credit Losses For the Nine Months Ended September 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for credit losses: Balance at beginning of period, prior to adoption of ASU 2016-13 $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Impact of adopting ASU 2016-13 3,385 618 (31 ) (132 ) 1,878 (3,701 ) 2,017 Adjusted beginning balance 8,344 4,682 78 74 8,323 - 21,501 Provision (reversal) 537 946 (71 ) (22 ) 2,910 - 4,300 Chargeoffs (178 ) - - - (3,071 ) - (3,249 ) Recoveries 282 37 - - 1,271 - 1,590 Total allowance for credit losses $ 8,985 $ 5,665 $ 7 $ 52 $ 9,433 $ - $ 24,142 The growth in commercial loan balances was due to originations of PPP loans which are 100% not Allowance for Loan Losses For the Three Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,235 $ 4,057 $ 1,117 $ 238 $ 5,418 $ 4,052 $ 20,117 (Reversal) provision (596 ) (1 ) 482 (16 ) 655 (524 ) - Chargeoffs - - - - (1,039 ) - (1,039 ) Recoveries 233 12 - - 505 - 750 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Nine Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 (Reversal) provision (1,817 ) 146 134 (647 ) 1,833 351 - Chargeoffs (71 ) - - - (3,332 ) - (3,403 ) Recoveries 449 38 - - 1,393 - 1,880 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 The allowance for loan losses and recorded investment in loans evaluated for impairment were as follows: Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment At December 31, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,413 $ - $ - $ - $ - $ - $ 2,413 Collectively evaluated for impairment 2,546 4,064 109 206 6,445 3,701 17,071 Total $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Carrying value of loans: Individually evaluated for impairment $ 8,182 $ 7,409 $ - $ 190 $ 43 $ - $ 15,824 Collectively evaluated for impairment 213,903 571,349 1,618 32,558 291,412 - 1,110,840 Total $ 222,085 $ 578,758 $ 1,618 $ 32,748 $ 291,455 $ - $ 1,126,664 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 September 30, 2020 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 437,216 $ 546,714 $ 140 $ 23,699 $ 274,251 $ 1,282,020 Substandard 8,389 16,993 - 1,377 320 27,079 Doubtful - - - - 505 505 Loss - - - - 405 405 Total $ 445,605 $ 563,707 $ 140 $ 25,076 $ 275,481 $ 1,310,009 Credit Risk Profile by Internally Assigned Grade At December 31, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 213,542 $ 567,525 $ 1,618 $ 31,055 $ 289,424 $ 1,103,164 Substandard 8,543 11,233 - 1,693 1,329 22,798 Doubtful - - - - 308 308 Loss - - - - 394 394 Total $ 222,085 $ 578,758 $ 1,618 $ 32,748 $ 291,455 $ 1,126,664 The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status At September 30, 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 $ 444,496 $ 963 $ 39 $ - $ 107 $ 445,605 Commercial real estate 559,361 624 - - 3,722 563,707 Construction 140 - - - - 140 Residential real estate 24,357 558 - - 161 25,076 Consumer installment and other 272,631 1,328 772 360 390 275,481 Total $ 1,300,985 $ 3,473 $ 811 $ 360 $ 4,380 $ 1,310,009 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2019 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 $ 221,199 $ 531 $ 158 $ - $ 197 $ 222,085 Commercial real estate 573,809 432 421 - 4,096 578,758 Construction 1,618 - - - - 1,618 Residential real estate 31,934 274 540 - - 32,748 Consumer installment and other 286,391 2,960 1,517 440 147 291,455 Total $ 1,114,951 $ 4,197 $ 2,636 $ 440 $ 4,440 $ 1,126,664 There was no allowance for credit losses allocated to loans on nonaccrual status as of September 30, 2020. September 30, 2020 December 31, 2019. The following summarizes impaired loans as of December 31, 2019: Impaired Loans At December 31, 2019 Unpaid Recorded Principal Related Investment Balance Allowance (In thousands) With no related allowance recorded: Commercial $ 21 $ 21 $ - Commercial real estate 7,408 8,856 - Residential real estate 190 220 - Consumer installment and other 43 43 - Total with no related allowance recorded 7,662 9,140 - With an allowance recorded: Commercial 8,160 8,160 2,413 Total with an allowance recorded 8,160 8,160 2,413 Total $ 15,822 $ 17,300 $ 2,413 Impaired loans at December 31, 2019, Impaired Loans For the Three Months For the Nine Months Ended September 30, 2019 Average Recognized Average Recognized Recorded Interest Recorded Interest Investment Income Investment Income (In thousands) Commercial $ 8,701 $ 144 $ 9,404 $ 476 Commercial real estate 7,968 60 7,133 333 Residential real estate 194 4 196 10 Consumer installment and other 99 - 103 - Total $ 16,962 $ 208 $ 16,836 $ 819 The following tables provide information on troubled debt restructurings (TDRs): Troubled Debt Restructurings At September 30, 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 $ 6,121 $ - Residential real estate 1 241 183 - Total 7 $ 8,608 $ 6,304 $ - Troubled Debt Restructurings At December 31, 2019 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 2 $ 278 $ 32 $ 11 Commercial real estate 6 8,367 6,492 - Residential real estate 1 241 189 - Total 9 $ 8,886 $ 6,713 $ 11 During the three nine September 30, 2020, not 4013 19 three nine September 30, 2020, 4013 90 September 30, 2020, September 30, 2020, three nine September 30, 2019, not three nine September 30, 2020 2019. three nine September 30, 2020 2019, 12 ninety TDRs of $6,304 thousand included loans of $3,420 thousand on nonaccrual status at September 30, 2020. No one September 30, 2020. September 30, 2020. September 30, 2020, 90 no September 30, 2020. Based on the most recent analysis performed, the risk category of loans by class of loans is as follows: At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Commercial loans by grade Pass $ 20,496 $ 5,205 $ 26,132 $ 10,860 $ 21,343 $ 42,380 $ 270,664 $ 397,080 $ 40,136 $ 437,216 Substandard 64 - 1 - - - 7,876 7,941 448 8,389 Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ 20,560 $ 5,205 $ 26,133 $ 10,860 $ 21,343 $ 42,380 $ 278,540 $ 405,021 $ 40,584 $ 445,605 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade Pass $ 88,661 $ 50,764 $ 43,804 $ 101,731 $ 95,622 $ 94,531 $ 71,601 $ 546,714 $ - $ 546,714 Substandard 4,807 1,314 9,921 107 - - 844 16,993 - 16,993 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 93,468 $ 52,078 $ 53,725 $ 101,838 $ 95,622 $ 94,531 $ 72,445 $ 563,707 $ - $ 563,707 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Construction loans by grade Pass $ - $ - $ - $ - $ - $ - $ - $ - $ 140 $ 140 Substandard - - - - - - - - - - Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ - $ 140 $ 140 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Residential Real Estate loans by grade Pass $ 23,699 $ - $ - $ - $ - $ - $ - $ 23,699 $ - $ 23,699 Substandard 1,377 - - - - - - 1,377 - 1,377 Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ 25,076 $ - $ - $ - $ - $ - $ - $ 25,076 $ - $ 25,076 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 September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status Current $ 5,087 $ 6,457 $ 19,339 $ 24,554 $ 53,347 $ 69,313 $ 64,893 $ 242,990 $ 29,641 $ 272,631 30-59 days past due 35 91 147 224 266 402 148 1,313 15 1,328 60-89 days past due 2 30 48 163 327 160 40 770 2 772 Past due 90 days or more - 5 29 - 226 66 31 357 3 360 Nonaccrual - - - - - - - - 390 390 Total $ 5,124 $ 6,583 $ 19,563 $ 24,941 $ 54,166 $ 69,941 $ 65,112 $ 245,430 $ 30,051 $ 275,481 There were no September 30, 2020 December 31, 2019. At September 30, 2020 December 31, 2019, no September 30, 2020 December 31, 2019. no September 30, 2020 December 31, 2019. September 30, 2020 December 31, 2019.

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 5 : Concentration of Credit Risk Under the California Financial Code, credit extended to any one one not not not September 30, 2020, not one September 30, 2020, 4, September 30, 2020 December 31, 2019, no no September 30, 2020,

Note 6 - Other Assets and Other

Note 6 - Other Assets and Other Liabilities	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Other Assets and Liabilities Disclosure [Text Block]	Note 6 : Other Assets and Other Liabilities Other assets consisted of the following: At September 30, At December 31, 2020 2019 (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 59,868 57,810 Net deferred tax asset - 11,085 Right-of-use asset 19,098 17,136 Limited partnership investments 18,935 20,773 Interest receivable 30,779 28,797 Prepaid assets 3,619 3,737 Other assets 13,743 10,767 Total other assets $ 160,269 $ 164,332 ( 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. September 30, 2020, third 2020. 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 September 30, 2020, December 31, 2019, September 30, 2020, 2020, 2021, 2022, 2023, 2024, 2025, 2026 2027 The amounts recognized in net income for these investments include: For the Three Months Ended For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands) Investment loss included in pre-tax income $ 640 $ 600 $ 1,840 $ 1,800 Tax credits recognized in provision for income taxes 225 225 675 675 Other liabilities consisted of the following: At September 30, At December 31, 2020 2019 (In thousands) Net deferred tax liability $ 21,819 $ - Operating lease liability 19,098 17,136 Other liabilities 49,559 27,453 Total other liabilities $ 90,476 $ 44,589 The deferred tax liability at September 30, 2020 December 31, 2019 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 September 30, 2020. As of September 30, 2020, September 30, 2020. not September 30, 2020. Total lease costs during the three nine September 30, 2020, not nine September 30, 2020. The following table summarizes the remaining lease payments of operating lease liabilities: Minimum At September 30, 2020 (In thousands) The remaining three months of 2020 $ 1,599 2021 5,353 2022 4,426 2023 3,689 2024 2,078 Thereafter 2,863 Total minimum lease payments 20,008 Less: discount (910 ) Present value of lease liability $ 19,098

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 7 : Goodwill and Identifiable Intangible Assets The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not not three nine September 30, 2020 December 31, 2019. three nine September 30, 2020 December 31, 2019 The carrying values of goodwill were: At September 30, 2020 At December 31, 2019 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At September 30, 2020 At December 31, 2019 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,635 ) $ 56,808 $ (55,417 ) As of September 30, 2020, Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2020 (actual) $ 218 Estimate for the remainder of year ending December 31, 2020 69 Estimate for year ending December 31, 2021 269 2022 252 2023 236 2024 222 2025 125

Note 8 - Deposits and Borrowed

Note 8 - Deposits and Borrowed Funds	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 8 : Deposits and Borrowed Funds The following table provides additional detail regarding deposits. Deposits At September 30, At December 31, 2020 2019 (In thousands) Noninterest-bearing $ 2,684,028 $ 2,240,112 Interest-bearing: Transaction 1,040,712 931,888 Savings 1,653,000 1,471,284 Time deposits less than $100 thousand 83,838 88,355 Time deposits $100 thousand through $250 thousand 50,378 54,874 Time deposits more than $250 thousand 27,234 26,108 Total deposits $ 5,539,190 $ 4,812,621 Demand deposit overdrafts of $1,466 thousand and $1,055 thousand were included as loan balances at September 30, 2020 December 31, 2019, $100 three nine September 30, 2020, three nine September 30, 2019, The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2020 2019 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ - $ 65,833 Agency residential MBS 76,715 52,485 Corporate securities 183,447 146,253 Total collateral carrying value $ 260,162 $ 264,571 Total short-term borrowed funds $ 107,973 $ 30,928

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 9 : Fair Value Measurements 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 September 30, 2020 Fair Value Quoted Prices Significant Other Significant (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 745,297 $ - $ 745,297 $ - Agency commercial MBS 3,585 - 3,585 - Securities of U.S. Government entities 163 - 163 - Obligations of states and political subdivisions 127,172 - 127,172 - Corporate securities 2,212,827 - 2,212,827 - Commercial paper 224,816 224,816 Collateralized loan obligations 670,134 - 670,134 - Total debt securities available for sale $ 3,983,994 $ - $ 3,983,994 $ - ( 1 no 3 nine September 30, 2020. At December 31, 2019 Fair Value Quoted Prices Significant Other Significant (1) (In thousands) Debt securities available for sale U.S. Treasury securities $ 20,000 $ 20,000 $ - $ - Securities of U.S. Government sponsored entities 111,167 - 111,167 - Agency residential MBS 939,750 - 939,750 - Agency commercial MBS 3,708 - 3,708 - Securities of U.S. Government entities 544 - 544 - Obligations of states and political subdivisions 163,139 - 163,139 - Corporate securities 1,833,783 - 1,833,783 - Collateralized loan obligations 6,755 - 6,755 - Total debt securities available for sale $ 3,078,846 $ 20,000 $ 3,058,846 $ - ( 1 no 3 twelve December 31, 2019. Assets Recorded at Fair Value on a Nonrecurring Basis The Company may September 30, 2020 December 31, 2019, For the Nine Months Ended At September 30, 2020 September 30, 2020 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Loans: Commercial 5,354 - - 5,354 - Commercial real estate 3,773 - - 3,773 - Residential real estate 183 - - 183 - Total assets measured at fair value on a nonrecurring basis $ 9,353 $ - $ - $ 9,353 $ - For the Twelve Months Ended At December 31, 2019 December 31, 2019 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Impaired loans: Commercial 5,747 - - 5,747 - Commercial real estate 4,091 - - 4,091 - Residential real estate 190 - - 190 - Total assets measured at fair value on a nonrecurring basis $ 10,071 $ - $ - $ 10,071 $ - 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 September 30, 2020 Carrying Estimated Quoted Prices Significant Other Significant Financial Assets: (In thousands) Cash and due from banks $ 398,964 $ 398,964 $ 398,964 $ - $ - Debt securities held to maturity 577,795 593,701 - 593,701 - Loans 1,285,867 1,347,245 - - 1,347,245 Financial Liabilities: Deposits $ 5,539,190 $ 5,539,300 $ - $ 5,377,740 $ 161,560 Short-term borrowed funds 107,973 107,973 - 107,973 - At December 31, 2019 Carrying Estimated Quoted Prices Significant Other Significant Financial Assets: (In thousands) Cash and due from banks $ 373,421 $ 373,421 $ 373,421 $ - $ - Debt securities held to maturity 738,072 744,296 - 744,296 - Loans 1,107,180 1,152,949 - - 1,152,949 Financial Liabilities: Deposits $ 4,812,621 $ 4,810,934 $ - $ 4,643,284 $ 167,650 Short-term borrowed funds 30,928 30,928 - 30,928 - 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	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 10 : Commitments and Contingent Liabilities Loan commitments are agreements to lend to a customer provided there is no not September 30, 2020. not September 30, 2020 December 31, 2019. September 30, 2020 December 31, 2019. September 30, 2020 December 31, 2019. 3 rd September 30, 2020 December 31, 2019, September 30, 2020 December 31, 2019, The Company determined that it will be obligated to provide refunds of revenue recognized in years prior to 2018 2017; second 2019, 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	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 1 1 : Earnings Per Common Share The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents. For the Three Months For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 20,051 $ 20,390 $ 56,575 $ 59,661 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,930 26,986 26,977 26,924 Basic earnings per common share $ 0.74 $ 0.76 $ 2.10 $ 2.22 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,930 26,986 26,977 26,924 Add common stock equivalents for options 16 41 21 52 Weighted average number of common shares outstanding - diluted (denominator) 26,946 27,027 26,998 26,976 Diluted earnings per common share $ 0.74 $ 0.75 $ 2.10 $ 2.21 For the three nine September 30, 2020, not For the three nine September 30, 2019, not

Note 12 - Impact of COVID-19

Note 12 - Impact of COVID-19	9 Months Ended
	Sep. 30, 2020
Notes to Financial Statements
Unusual or Infrequent Items, or Both, Disclosure [Text Block]	Note 12: 19 The COVID- 19 The COVID- 19 first 2020 third 2020 may March 19, 2020, second third 2020 third 2020. The Bank's deposits are exclusively sourced within California and its loans are primarily to borrowers domiciled within California. Demand for the Bank's products and services, such as loans and deposits, could be affected as a result of the decline in economic activity within the state. The Bank's investment portfolio contains bonds for which the source of repayment is domestic mortgage repayments, domestic municipalities throughout the United States, and domestic and global corporations. The value of the Bank's investment portfolio may In response to the pandemic, the Federal Reserve has engaged significant levels of monetary policy to provide liquidity and credit facilities to the financial markets. On March 15, 2020, 0 0.25 0.10 March 16, 2020, may In response to the pandemic, the United States federal government enacted the Coronavirus Aid, Relief, and Economic Security Act (the "CARES Act") on March 27, 2020, $2 $350 April 2020, $310 June 30, 2020, September 30, 2020. On April 7, 2020, 19 September 30, 2020, The extent of the spread of the coronavirus, its ultimate containment and its effects on the economy and the Company are uncertain at this time. The effectiveness of the Federal Reserve Bank's monetary policies and the federal government's fiscal policies in stimulating the United States economy is uncertain at this time. Management expects the Company's net interest margin and non-interest income to decline and credit-related losses to increase for an uncertain period given the decline in economic activity occurring due to the coronavirus. The amount of impact on the Company's financial results is uncertain. In addition, the Company's future success and profitability substantially depends upon the skills and experience of its executive officers and directors, many of whom have held positions with the Company for many years. The unanticipated loss or unavailability of key employees due to the outbreak could adversely affect the Company's ability to operate its business or execute its business strategy. Any one The Recent Decline in Oil Prices Could Have an Impact on the Company's Financial Condition and Results of Operations Oil prices have declined considerably in the first nine 2020. September 30, 2020. The Company’s participation in the SBA PPP loan program exposes it to risks of noncompliance with the PPP and litigation, which could have a material adverse impact on the Company’s business, financial condition and results of operations. The Company is a participating lender in the PPP. The SBA guarantees 100% may

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Credit Loss, Financial Instrument [Policy Text Block]	FASB ASU 2016 13, Financial Instruments – Credit Losses (Topic 326 June 16, 2016. The Company adopted the ASU provisions on a modified retrospective basis on January 1, 2020. no The following table summarizes the impact of adoption of ASU 2016 13. January 1, 2020 Balance, Impact of As reported prior to adoption adoption of under of ASU 2016-13 ASU 2016-13 ASU 2016-13 (In thousands) Assets: Allowance for credit losses on loans: Commercial $ 4,959 $ 3,385 $ 8,344 Commercial real estate 4,064 618 4,682 Construction 109 (31 ) 78 Residential real estate 206 (132 ) 74 Consumer and other installment loans 6,445 1,878 8,323 Unallocated 3,701 (3,701 ) - Allowance for credit losses on loans: $ 19,484 $ 2,017 $ 21,501 Allowance for credit losses on debt securities held to maturity - 16 16 Liabilities Allowance for credit losses for unfunded commitments 2,160 (2,107 ) 53
Marketable Securities, Policy [Policy Text Block]	Debt Securities. Debt securities consist of the U.S. Treasury, securities of government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, and collateralized loan obligations. 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 AFS debt securities in unrealized loss positions are evaluated for credit related loss at least quarterly. For AFS 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 securities are included in earnings using the specific identification method.
Cost Method Investments, Policy [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.
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 loan losses. 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
Currently Adopted Accounting Pronouncements [Policy Text Block]	FASB ASU 2018 13 Fair Value Measurements (Topic 820 August 2018. The provisions of the ASU were effective January 1, 2020 January 1, 2020. not
New Accounting Pronouncements, Policy [Policy Text Block]	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 2 - Accounting Policies (T

Note 2 - Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Accounting Standards Update and Change in Accounting Principle [Table Text Block]	January 1, 2020 Balance, Impact of As reported prior to adoption adoption of under of ASU 2016-13 ASU 2016-13 ASU 2016-13 (In thousands) Assets: Allowance for credit losses on loans: Commercial $ 4,959 $ 3,385 $ 8,344 Commercial real estate 4,064 618 4,682 Construction 109 (31 ) 78 Residential real estate 206 (132 ) 74 Consumer and other installment loans 6,445 1,878 8,323 Unallocated 3,701 (3,701 ) - Allowance for credit losses on loans: $ 19,484 $ 2,017 $ 21,501 Allowance for credit losses on debt securities held to maturity - 16 16 Liabilities Allowance for credit losses for unfunded commitments 2,160 (2,107 ) 53

Note 3 - Investment Securities

Note 3 - Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]	At September 30, 2020 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale Agency residential mortgage-backed securities ("MBS") $ 720,123 $ 25,174 $ - $ 745,297 Agency commercial MBS 3,601 - (16 ) 3,585 Securities of U.S. Government entities 163 - - 163 Obligations of states and political subdivisions 121,951 5,223 (2 ) 127,172 Corporate securities 2,098,444 114,582 (199 ) 2,212,827 Commercial paper 224,862 29 (75 ) 224,816 Collateralized loan obligations 667,735 3,053 (654 ) 670,134 Total debt securities available for sale 3,836,879 148,061 (946 ) 3,983,994 Debt securities held to maturity Agency residential MBS 272,460 7,648 (39 ) 280,069 Non-agency residential MBS 2,020 36 - 2,056 Obligations of states and political subdivisions 303,331 8,261 - 311,592 Total debt securities held to maturity 577,811 15,945 (39 ) 593,717 Total $ 4,414,690 $ 164,006 $ (985 ) $ 4,577,711 At December 31, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 19,999 $ 1 $ - $ 20,000 Securities of U.S. Government sponsored entities 111,251 14 (98 ) 111,167 Agency residential MBS 934,592 10,996 (5,838 ) 939,750 Agency commercial MBS 3,711 - (3 ) 3,708 Securities of U.S. Government entities 553 - (9 ) 544 Obligations of states and political subdivisions 159,527 3,656 (44 ) 163,139 Corporate securities 1,805,479 29,183 (879 ) 1,833,783 Collateralized loan obligations 6,748 7 - 6,755 Total debt securities available for sale 3,041,860 43,857 (6,871 ) 3,078,846 Debt securities held to maturity Agency residential MBS 353,937 766 (2,235 ) 352,468 Non-agency residential MBS 2,354 22 - 2,376 Obligations of states and political subdivisions 381,781 7,672 (1 ) 389,452 Total debt securities held to maturity 738,072 8,460 (2,236 ) 744,296 Total $ 3,779,932 $ 52,317 $ (9,107 ) $ 3,823,142
Investments Classified by Contractual Maturity Date [Table Text Block]	At September 30, 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 $ 452,154 $ 454,493 $ 63,044 $ 63,504 Over 1 to 5 years 973,305 1,026,667 132,750 136,640 Over 5 to 10 years 1,480,374 1,544,476 107,537 111,448 Over 10 years 207,322 209,476 - - Subtotal 3,113,155 3,235,112 303,331 311,592 MBS 723,724 748,882 274,480 282,125 Total $ 3,836,879 $ 3,983,994 $ 577,811 $ 593,717 At December 31, 2019 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 $ 294,698 $ 295,255 $ 70,378 $ 70,602 Over 1 to 5 years 1,104,775 1,122,391 161,911 165,126 Over 5 to 10 years 670,595 683,277 149,492 153,724 Over 10 years 33,489 34,465 - - Subtotal 2,103,557 2,135,388 381,781 389,452 MBS 938,303 943,458 356,291 354,844 Total $ 3,041,860 $ 3,078,846 $ 738,072 $ 744,296
Schedule of Unrealized Loss on Investments [Table Text Block]	Debt Securities Available for Sale At September 30, 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 $ 98 $ - 1 $ 21 $ - 2 $ 119 $ - Agency commercial MBS 1 3,585 (16 ) - - - 1 3,585 (16 ) Securities of U.S. Government entities 1 163 - - - - 1 163 - Obligations of states and political subdivisions 5 2,447 (2 ) - - - 5 2,447 (2 ) Corporate securities - - - 2 18,263 (199 ) 2 18,263 (199 ) Commercial paper 4 99,874 (75 ) - - - 4 99,874 (75 ) Collateralized loan obligations 29 216,358 (654 ) - - - 29 216,358 (654 ) Total 41 $ 322,525 $ (747 ) 3 $ 18,284 $ (199 ) 44 $ 340,809 $ (946 ) Debt Securities Held to Maturity At September 30, 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 2 $ 153 $ (1 ) 3 $ 1,109 $ (38 ) 5 $ 1,262 $ (39 ) Debt Securities Available for Sale At December 31, 2019 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) Securities of U.S. Government sponsored entities 1 $ 9,951 $ (49 ) 3 $ 45,877 $ (49 ) 4 $ 55,828 $ (98 ) Agency residential MBS 6 11,674 (100 ) 47 347,384 (5,738 ) 53 359,058 (5,838 ) Agency commercial MBS 1 3,708 (3 ) - - - 1 3,708 (3 ) Securities of U.S. Government entities - - - 2 544 (9 ) 2 544 (9 ) Obligations of states and political subdivisions - - - 7 4,163 (44 ) 7 4,163 (44 ) Corporate securities 8 71,577 (162 ) 11 64,380 (717 ) 19 135,957 (879 ) Total 16 $ 96,910 $ (314 ) 70 $ 462,348 $ (6,557 ) 86 $ 559,258 $ (6,871 ) Debt Securities Held to Maturity At December 31, 2019 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 6 $ 12,098 $ (87 ) 54 $ 277,203 $ (2,148 ) 60 $ 289,301 $ (2,235 ) Obligations of states and political subdivisions - - - 1 251 (1 ) 1 251 (1 ) Total 6 $ 12,098 $ (87 ) 55 $ 277,454 $ (2,149 ) 61 $ 289,552 $ (2,236 )
Debt Securities, Held-to-maturity, Allowance for Credit Loss [Table Text Block]	For the Nine Months Ended September 30, 2020 (In thousands) Allowance for credit losses: Beginning balance, prior to adoption of ASU 2016-13 $ - Impact of adopting ASU 2016-13 16 Provision - Chargeoffs - Recoveries - Total ending balance $ 16
Debt Securities, Held-to-maturity, Credit Quality Indicator [Table Text Block]	Credit Risk Profile by Credit Rating At September 30, 2020 (In thousands) AAA/AA/A BBB BB/B Total Agency residential MBS $ 272,460 $ - $ - $ 272,460 Non-agency residential MBS 1,005 - 1,015 2,020 Obligations of states and political subdivisions 303,230 101 - 303,331 Total $ 576,695 $ 101 $ 1,015 $ 577,811
Interest Income from Investments [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands) Taxable $ 23,079 $ 19,586 $ 67,963 $ 56,992 Tax-exempt from federal income tax 2,911 3,777 9,501 12,165 Total interest income from investment securities $ 25,990 $ 23,363 $ 77,464 $ 69,157

Note 4 - Loans, Allowance for_2

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At September 30, At December 31, 2020 2019 (In thousands) Commercial: Paycheck Protection Program ("PPP") loans $ 243,982 $ - Other 201,623 222,085 Total commercial 445,605 222,085 Commercial Real Estate 563,707 578,758 Construction 140 1,618 Residential Real Estate 25,076 32,748 Consumer Installment & Other 275,481 291,455 Total $ 1,310,009 $ 1,126,664
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Allowance for Credit Losses For the Three Months Ended September 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Total (In thousands) Allowance for credit losses: Balance at beginning of period $ 8,072 $ 4,623 $ 7 $ 57 $ 11,770 $ 24,529 Provision (reversal) 867 1,030 - (5 ) (1,892 ) - Chargeoffs - - - - (872 ) (872 ) Recoveries 46 12 - - 427 485 Total allowance for credit losses $ 8,985 $ 5,665 $ 7 $ 52 $ 9,433 $ 24,142 Allowance for Credit Losses For the Nine Months Ended September 30, 2020 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for credit losses: Balance at beginning of period, prior to adoption of ASU 2016-13 $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Impact of adopting ASU 2016-13 3,385 618 (31 ) (132 ) 1,878 (3,701 ) 2,017 Adjusted beginning balance 8,344 4,682 78 74 8,323 - 21,501 Provision (reversal) 537 946 (71 ) (22 ) 2,910 - 4,300 Chargeoffs (178 ) - - - (3,071 ) - (3,249 ) Recoveries 282 37 - - 1,271 - 1,590 Total allowance for credit losses $ 8,985 $ 5,665 $ 7 $ 52 $ 9,433 $ - $ 24,142 Allowance for Loan Losses For the Three Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,235 $ 4,057 $ 1,117 $ 238 $ 5,418 $ 4,052 $ 20,117 (Reversal) provision (596 ) (1 ) 482 (16 ) 655 (524 ) - Chargeoffs - - - - (1,039 ) - (1,039 ) Recoveries 233 12 - - 505 - 750 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Nine Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 (Reversal) provision (1,817 ) 146 134 (647 ) 1,833 351 - Chargeoffs (71 ) - - - (3,332 ) - (3,403 ) Recoveries 449 38 - - 1,393 - 1,880 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828
Schedule of Recorded Investment in Loans Evaluated for Impairment [Table Text Block]	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment At December 31, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,413 $ - $ - $ - $ - $ - $ 2,413 Collectively evaluated for impairment 2,546 4,064 109 206 6,445 3,701 17,071 Total $ 4,959 $ 4,064 $ 109 $ 206 $ 6,445 $ 3,701 $ 19,484 Carrying value of loans: Individually evaluated for impairment $ 8,182 $ 7,409 $ - $ 190 $ 43 $ - $ 15,824 Collectively evaluated for impairment 213,903 571,349 1,618 32,558 291,412 - 1,110,840 Total $ 222,085 $ 578,758 $ 1,618 $ 32,748 $ 291,455 $ - $ 1,126,664
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade At September 30, 2020 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 437,216 $ 546,714 $ 140 $ 23,699 $ 274,251 $ 1,282,020 Substandard 8,389 16,993 - 1,377 320 27,079 Doubtful - - - - 505 505 Loss - - - - 405 405 Total $ 445,605 $ 563,707 $ 140 $ 25,076 $ 275,481 $ 1,310,009 Credit Risk Profile by Internally Assigned Grade At December 31, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 213,542 $ 567,525 $ 1,618 $ 31,055 $ 289,424 $ 1,103,164 Substandard 8,543 11,233 - 1,693 1,329 22,798 Doubtful - - - - 308 308 Loss - - - - 394 394 Total $ 222,085 $ 578,758 $ 1,618 $ 32,748 $ 291,455 $ 1,126,664
Financing Receivable, Past Due [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status At September 30, 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 $ 444,496 $ 963 $ 39 $ - $ 107 $ 445,605 Commercial real estate 559,361 624 - - 3,722 563,707 Construction 140 - - - - 140 Residential real estate 24,357 558 - - 161 25,076 Consumer installment and other 272,631 1,328 772 360 390 275,481 Total $ 1,300,985 $ 3,473 $ 811 $ 360 $ 4,380 $ 1,310,009 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2019 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 $ 221,199 $ 531 $ 158 $ - $ 197 $ 222,085 Commercial real estate 573,809 432 421 - 4,096 578,758 Construction 1,618 - - - - 1,618 Residential real estate 31,934 274 540 - - 32,748 Consumer installment and other 286,391 2,960 1,517 440 147 291,455 Total $ 1,114,951 $ 4,197 $ 2,636 $ 440 $ 4,440 $ 1,126,664
Impaired Financing Receivables [Table Text Block]	Impaired Loans At December 31, 2019 Unpaid Recorded Principal Related Investment Balance Allowance (In thousands) With no related allowance recorded: Commercial $ 21 $ 21 $ - Commercial real estate 7,408 8,856 - Residential real estate 190 220 - Consumer installment and other 43 43 - Total with no related allowance recorded 7,662 9,140 - With an allowance recorded: Commercial 8,160 8,160 2,413 Total with an allowance recorded 8,160 8,160 2,413 Total $ 15,822 $ 17,300 $ 2,413
Impaired Financing Receivables Supplemental Schedule [Table Text Block]	Impaired Loans For the Three Months For the Nine Months Ended September 30, 2019 Average Recognized Average Recognized Recorded Interest Recorded Interest Investment Income Investment Income (In thousands) Commercial $ 8,701 $ 144 $ 9,404 $ 476 Commercial real estate 7,968 60 7,133 333 Residential real estate 194 4 196 10 Consumer installment and other 99 - 103 - Total $ 16,962 $ 208 $ 16,836 $ 819
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	Troubled Debt Restructurings At September 30, 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 $ 6,121 $ - Residential real estate 1 241 183 - Total 7 $ 8,608 $ 6,304 $ - Troubled Debt Restructurings At December 31, 2019 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 2 $ 278 $ 32 $ 11 Commercial real estate 6 8,367 6,492 - Residential real estate 1 241 189 - Total 9 $ 8,886 $ 6,713 $ 11
Financing Receivable, Loans by Risk Category [Table Text Block]	At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Commercial loans by grade Pass $ 20,496 $ 5,205 $ 26,132 $ 10,860 $ 21,343 $ 42,380 $ 270,664 $ 397,080 $ 40,136 $ 437,216 Substandard 64 - 1 - - - 7,876 7,941 448 8,389 Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ 20,560 $ 5,205 $ 26,133 $ 10,860 $ 21,343 $ 42,380 $ 278,540 $ 405,021 $ 40,584 $ 445,605 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Commercial real estate loans by grade Pass $ 88,661 $ 50,764 $ 43,804 $ 101,731 $ 95,622 $ 94,531 $ 71,601 $ 546,714 $ - $ 546,714 Substandard 4,807 1,314 9,921 107 - - 844 16,993 - 16,993 Doubtful - - - - - - - - - Loss - - - - - - - - - Total $ 93,468 $ 52,078 $ 53,725 $ 101,838 $ 95,622 $ 94,531 $ 72,445 $ 563,707 $ - $ 563,707 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Construction loans by grade Pass $ - $ - $ - $ - $ - $ - $ - $ - $ 140 $ 140 Substandard - - - - - - - - - - Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ - $ - $ - $ - $ - $ - $ - $ - $ 140 $ 140 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Residential Real Estate loans by grade Pass $ 23,699 $ - $ - $ - $ - $ - $ - $ 23,699 $ - $ 23,699 Substandard 1,377 - - - - - - 1,377 - 1,377 Doubtful - - - - - - - - - - Loss - - - - - - - - - - Total $ 25,076 $ - $ - $ - $ - $ - $ - $ 25,076 $ - $ 25,076 At September 30, 2020 Revolving Loans Term Loans Amortized Cost Basis by Origination Year Total Amortized Prior 2015 2016 2017 2018 2019 2020 Term Loans Cost Basis Total (In thousands) Consumer installment and other loans by delinquency and nonaccrual status Current $ 5,087 $ 6,457 $ 19,339 $ 24,554 $ 53,347 $ 69,313 $ 64,893 $ 242,990 $ 29,641 $ 272,631 30-59 days past due 35 91 147 224 266 402 148 1,313 15 1,328 60-89 days past due 2 30 48 163 327 160 40 770 2 772 Past due 90 days or more - 5 29 - 226 66 31 357 3 360 Nonaccrual - - - - - - - - 390 390 Total $ 5,124 $ 6,583 $ 19,563 $ 24,941 $ 54,166 $ 69,941 $ 65,112 $ 245,430 $ 30,051 $ 275,481

Note 6 - Other Assets and Oth_2

Note 6 - Other Assets and Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Schedule of Other Assets [Table Text Block]	At September 30, At December 31, 2020 2019 (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 59,868 57,810 Net deferred tax asset - 11,085 Right-of-use asset 19,098 17,136 Limited partnership investments 18,935 20,773 Interest receivable 30,779 28,797 Prepaid assets 3,619 3,737 Other assets 13,743 10,767 Total other assets $ 160,269 $ 164,332
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months Ended For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands) Investment loss included in pre-tax income $ 640 $ 600 $ 1,840 $ 1,800 Tax credits recognized in provision for income taxes 225 225 675 675
Other Liabilities [Table Text Block]	At September 30, At December 31, 2020 2019 (In thousands) Net deferred tax liability $ 21,819 $ - Operating lease liability 19,098 17,136 Other liabilities 49,559 27,453 Total other liabilities $ 90,476 $ 44,589
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Minimum At September 30, 2020 (In thousands) The remaining three months of 2020 $ 1,599 2021 5,353 2022 4,426 2023 3,689 2024 2,078 Thereafter 2,863 Total minimum lease payments 20,008 Less: discount (910 ) Present value of lease liability $ 19,098

Note 7 - Goodwill and Identif_2

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Schedule of Goodwill [Table Text Block]	At September 30, 2020 At December 31, 2019 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At September 30, 2020 At December 31, 2019 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,635 ) $ 56,808 $ (55,417 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2020 (actual) $ 218 Estimate for the remainder of year ending December 31, 2020 69 Estimate for year ending December 31, 2021 269 2022 252 2023 236 2024 222 2025 125

Note 8 - Deposits and Borrowe_2

Note 8 - Deposits and Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Deposit Liabilities, Type [Table Text Block]	Deposits At September 30, At December 31, 2020 2019 (In thousands) Noninterest-bearing $ 2,684,028 $ 2,240,112 Interest-bearing: Transaction 1,040,712 931,888 Savings 1,653,000 1,471,284 Time deposits less than $100 thousand 83,838 88,355 Time deposits $100 thousand through $250 thousand 50,378 54,874 Time deposits more than $250 thousand 27,234 26,108 Total deposits $ 5,539,190 $ 4,812,621
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2020 2019 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ - $ 65,833 Agency residential MBS 76,715 52,485 Corporate securities 183,447 146,253 Total collateral carrying value $ 260,162 $ 264,571 Total short-term borrowed funds $ 107,973 $ 30,928

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At September 30, 2020 Fair Value Quoted Prices Significant Other Significant (1) (In thousands) Debt securities available for sale Agency residential mortgage-backed securities (MBS) $ 745,297 $ - $ 745,297 $ - Agency commercial MBS 3,585 - 3,585 - Securities of U.S. Government entities 163 - 163 - Obligations of states and political subdivisions 127,172 - 127,172 - Corporate securities 2,212,827 - 2,212,827 - Commercial paper 224,816 224,816 Collateralized loan obligations 670,134 - 670,134 - Total debt securities available for sale $ 3,983,994 $ - $ 3,983,994 $ - At December 31, 2019 Fair Value Quoted Prices Significant Other Significant (1) (In thousands) Debt securities available for sale U.S. Treasury securities $ 20,000 $ 20,000 $ - $ - Securities of U.S. Government sponsored entities 111,167 - 111,167 - Agency residential MBS 939,750 - 939,750 - Agency commercial MBS 3,708 - 3,708 - Securities of U.S. Government entities 544 - 544 - Obligations of states and political subdivisions 163,139 - 163,139 - Corporate securities 1,833,783 - 1,833,783 - Collateralized loan obligations 6,755 - 6,755 - Total debt securities available for sale $ 3,078,846 $ 20,000 $ 3,058,846 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	For the Nine Months Ended At September 30, 2020 September 30, 2020 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Loans: Commercial 5,354 - - 5,354 - Commercial real estate 3,773 - - 3,773 - Residential real estate 183 - - 183 - Total assets measured at fair value on a nonrecurring basis $ 9,353 $ - $ - $ 9,353 $ - For the Twelve Months Ended At December 31, 2019 December 31, 2019 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Impaired loans: Commercial 5,747 - - 5,747 - Commercial real estate 4,091 - - 4,091 - Residential real estate 190 - - 190 - Total assets measured at fair value on a nonrecurring basis $ 10,071 $ - $ - $ 10,071 $ -
Fair Value, by Balance Sheet Grouping [Table Text Block]	At September 30, 2020 Carrying Estimated Quoted Prices Significant Other Significant Financial Assets: (In thousands) Cash and due from banks $ 398,964 $ 398,964 $ 398,964 $ - $ - Debt securities held to maturity 577,795 593,701 - 593,701 - Loans 1,285,867 1,347,245 - - 1,347,245 Financial Liabilities: Deposits $ 5,539,190 $ 5,539,300 $ - $ 5,377,740 $ 161,560 Short-term borrowed funds 107,973 107,973 - 107,973 - At December 31, 2019 Carrying Estimated Quoted Prices Significant Other Significant Financial Assets: (In thousands) Cash and due from banks $ 373,421 $ 373,421 $ 373,421 $ - $ - Debt securities held to maturity 738,072 744,296 - 744,296 - Loans 1,107,180 1,152,949 - - 1,152,949 Financial Liabilities: Deposits $ 4,812,621 $ 4,810,934 $ - $ 4,643,284 $ 167,650 Short-term borrowed funds 30,928 30,928 - 30,928 -

Note 11 - Earnings Per Common_2

Note 11 - Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2020
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2020 2019 2020 2019 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 20,051 $ 20,390 $ 56,575 $ 59,661 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,930 26,986 26,977 26,924 Basic earnings per common share $ 0.74 $ 0.76 $ 2.10 $ 2.22 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,930 26,986 26,977 26,924 Add common stock equivalents for options 16 41 21 52 Weighted average number of common shares outstanding - diluted (denominator) 26,946 27,027 26,998 26,976 Diluted earnings per common share $ 0.74 $ 0.75 $ 2.10 $ 2.21

Note 2 - Accounting Policies (D

Note 2 - Accounting Policies (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Loans and Leases Receivable, Allowance, Ending Balance	$ 24,142	$ 24,529		$ 19,484	$ 19,828	$ 20,117	$ 21,351
Reserve for Unfunded Commitments			$ 2,160
Retained Earnings (Accumulated Deficit), Ending Balance	$ 254,717			$ 239,135
Accounting Standards Update 2016-13 [Member]
Loans and Leases Receivable, Allowance, Ending Balance			2,017
Retained Earnings (Accumulated Deficit), Ending Balance			52
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
Reserve for Unfunded Commitments			$ (2,107)

Note 2 - Accounting Policies -

Note 2 - Accounting Policies - Impact of Adoption of ASU 2016-13 (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Allowance for credit losses (loans)		$ 19,484
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 16	0	$ 0
Allowance for credit losses for unfunded commitments		2,160
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		2,017
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance		16
Allowance for credit losses for unfunded commitments		(2,107)
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		21,501
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 16	16
Allowance for credit losses for unfunded commitments		53
Commercial Portfolio Segment [Member]
Allowance for credit losses (loans)		4,959
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		3,385
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		8,344
Commercial Real Estate Portfolio Segment [Member]
Allowance for credit losses (loans)		4,064
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		618
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		4,682
Construction Portfolio Segment [Member]
Allowance for credit losses (loans)		109
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		(31)
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		78
Residential Portfolio Segment [Member]
Allowance for credit losses (loans)		206
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		(132)
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		74
Consumer Portfolio Segment [Member]
Allowance for credit losses (loans)		6,445
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		1,878
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		8,323
Unallocated Financing Receivables [Member]
Allowance for credit losses (loans)		3,701
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member] | Accounting Standards Update 2016-13 [Member]
Allowance for credit losses (loans)		(3,701)
Unallocated Financing Receivables [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Allowance for credit losses (loans)		$ 0

Note 3 - Investment Securitie_2

Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Unrealized Gain (Loss) on Securities	$ 50
Equity Securities, FV-NI	0		$ 0
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	16	$ 0	0
High Risk Collateralized Mortgage Obligations	0		0
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total	0
Pledged Financial Instruments, Not Separately Reported, Securities, Total	850,245		760,365
Debt Securities, Available-for-sale, Amortized Cost, Total	3,836,879		3,041,860
Debt Securities, Available-for-sale, Total	3,983,994		3,078,846
Debt Securities, Held-to-maturity, Nonaccrual	0
Debt Security, Corporate, US [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	2,098,444		1,805,479
Debt Securities, Available-for-sale, Total	2,212,827		$ 1,833,783
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	14,900
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 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	Sep. 30, 2020	Dec. 31, 2019
Debt securities available for sale, amortized cost	$ 3,836,879	$ 3,041,860
Debt securities available for sale, gross unrealized gains	148,061	43,857
Debt securities available for sale, gross unrealized losses	(946)	(6,871)
Debt securities available for sale	3,983,994	3,078,846
Held to maturity	577,811	738,072
Debt securities held to maturity, gross unrecognized gains	15,945	8,460
Debt securities held to maturity, gross unrecognized losses	(39)	(2,236)
Debt securities held to maturity, fair value	593,717	744,296
Debt securities, amortized cost	4,414,690	3,779,932
Debt securities, gross unrecognized gains	164,006	52,317
Debt securities, gross unrecognized losses	(985)	(9,107)
Debt securities, fair value	4,577,711	3,823,142
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	720,123	934,592
Debt securities available for sale, gross unrealized gains	25,174	10,996
Debt securities available for sale, gross unrealized losses	0	(5,838)
Debt securities available for sale	745,297	939,750
Held to maturity	272,460	353,937
Debt securities held to maturity, gross unrecognized gains	7,648	766
Debt securities held to maturity, gross unrecognized losses	(39)	(2,235)
Debt securities held to maturity, fair value	280,069	352,468
US Treasury Securities [Member]
Debt securities available for sale, amortized cost		19,999
Debt securities available for sale, gross unrealized gains		1
Debt securities available for sale, gross unrealized losses		0
Debt securities available for sale		20,000
Agency Commercial MBS [Member]
Debt securities available for sale, amortized cost	3,601	3,711
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	(16)	(3)
Debt securities available for sale	3,585	3,708
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities available for sale, amortized cost		111,251
Debt securities available for sale, gross unrealized gains		14
Debt securities available for sale, gross unrealized losses		(98)
Debt securities available for sale		111,167
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	163	553
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	0	(9)
Debt securities available for sale	163	544
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	121,951	159,527
Debt securities available for sale, gross unrealized gains	5,223	3,656
Debt securities available for sale, gross unrealized losses	(2)	(44)
Debt securities available for sale	127,172	163,139
Held to maturity	303,331	381,781
Debt securities held to maturity, gross unrecognized gains	8,261	7,672
Debt securities held to maturity, gross unrecognized losses	0	(1)
Debt securities held to maturity, fair value	311,592	389,452
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	2,098,444	1,805,479
Debt securities available for sale, gross unrealized gains	114,582	29,183
Debt securities available for sale, gross unrealized losses	(199)	(879)
Debt securities available for sale	2,212,827	1,833,783
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Debt securities available for sale, amortized cost	224,862
Debt securities available for sale, gross unrealized gains	29
Debt securities available for sale, gross unrealized losses	(75)
Debt securities available for sale	224,816
Collateralized Debt Obligations [Member]
Debt securities available for sale, amortized cost	667,735	6,748
Debt securities available for sale, gross unrealized gains	3,053	7
Debt securities available for sale, gross unrealized losses	(654)	0
Debt securities available for sale	670,134	6,755
Non-agency Residential MBS [Member]
Held to maturity	2,020	2,354
Debt securities held to maturity, gross unrecognized gains	36	22
Debt securities held to maturity, gross unrecognized losses	0	0
Debt securities held to maturity, fair value	$ 2,056	$ 2,376

Note 3 - Investment Securitie_4

Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Investment securities available for sale, amortized cost, 1 year or less	$ 452,154	$ 294,698
Investment securities available for sale, fair value, 1 year or less	454,493	295,255
Investment securities held to maturity, amortized cost, 1 year or less	63,044	70,378
Investment securities held to maturity, fair value, 1 year or less	63,504	70,602
Investment securities available for sale, amortized cost, over 1 to 5 years	973,305	1,104,775
Investment securities available for sale, fair value, over 1 to 5 years	1,026,667	1,122,391
Investment securities held to maturity, amortized cost, over 1 to 5 years	132,750	161,911
Investment securities held to maturity, fair value, over 1 to 5 years	136,640	165,126
Investment securities available for sale, amortized cost, over 5 to 10 years	1,480,374	670,595
Investment securities available for sale, fair value, over 5 to 10 years	1,544,476	683,277
Investment securities held to maturity, amortized cost, over 5 to 10 years	107,537	149,492
Investment securities held to maturity, fair value, over 5 to 10 years	111,448	153,724
Investment securities available for sale, amortized cost, over 10 years	207,322	33,489
Investment securities available for sale, fair value, over 10 years	209,476	34,465
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	3,113,155	2,103,557
Investment securities available for sale, fair value, subtotal	3,235,112	2,135,388
Investment securities held to maturity, amortized cost, subtotal	303,331	381,781
Investment securities held to maturity, fair value, subtotal	311,592	389,452
Investment securities available for sale, amortized cost	723,724	938,303
Investment securities available for sale, fair value	748,882	943,458
Investment securities held to maturity, amortized cost	274,480	356,291
Investment securities held to maturity, fair value	282,125	354,844
Investment securities available for sale, amortized cost	3,836,879	3,041,860
Investment securities available for sale, fair value	3,983,994	3,078,846
Investment securities held to maturity, amortized cost	577,811	738,072
Investment securities held to maturity, fair value	$ 593,717	$ 744,296

Note 3 - Investment Securitie_5

Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Available for sale securities, less than 12 months, number of investment positions	41	16
Available for sale securities, less than 12 months, fair value	$ 322,525	$ 96,910
Available for sale securities, less than 12 months, unrealized losses	$ (747)	$ (314)
Available for sale securities, 12 months or longer, number of investment positions	3	70
Available for sale securities, 12 months or longer, fair value	$ 18,284	$ 462,348
Available for sale securities, 12 months or longer, unrealized losses	$ (199)	$ (6,557)
Available for sale securities, total, number of investment positions	44	86
Available for sale securities, total, fair value	$ 340,809	$ 559,258
Available for sale securities, total, unrealized losses	$ (946)	$ (6,871)
Held to Maturity securities, less than 12 months, number of investment positions		6
Held to Maturity securities, less than 12 months, fair value		$ 12,098
Held to Maturity securities, less than 12 months, unrecognized losses		$ (87)
Held to Maturity securities, 12 months or longer, number of investment positions		55
Held to Maturity securities, 12 months or longer, fair value		$ 277,454
Held to Maturity securities, 12 months or longer, unrecognized losses		$ (2,149)
Held to Maturity securities, total, number of investment positions		61
Held to Maturity securities, total, fair value		$ 289,552
Held to Maturity securities, total, unrecognized losses		$ (2,236)
Agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	1	6
Available for sale securities, less than 12 months, fair value	$ 98	$ 11,674
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ (100)
Available for sale securities, 12 months or longer, number of investment positions	1	47
Available for sale securities, 12 months or longer, fair value	$ 21	$ 347,384
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ (5,738)
Available for sale securities, total, number of investment positions	2	53
Available for sale securities, total, fair value	$ 119	$ 359,058
Available for sale securities, total, unrealized losses	$ 0	$ (5,838)
Held to Maturity securities, less than 12 months, number of investment positions	2	6
Held to Maturity securities, less than 12 months, fair value	$ 153	$ 12,098
Held to Maturity securities, less than 12 months, unrecognized losses	$ (1)	$ (87)
Held to Maturity securities, 12 months or longer, number of investment positions	3	54
Held to Maturity securities, 12 months or longer, fair value	$ 1,109	$ 277,203
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (38)	$ (2,148)
Held to Maturity securities, total, number of investment positions	5	60
Held to Maturity securities, total, fair value	$ 1,262	$ 289,301
Held to Maturity securities, total, unrecognized losses	$ (39)	$ (2,235)
US Government-sponsored Enterprises Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions		1
Available for sale securities, less than 12 months, fair value		$ 9,951
Available for sale securities, less than 12 months, unrealized losses		$ (49)
Available for sale securities, 12 months or longer, number of investment positions		3
Available for sale securities, 12 months or longer, fair value		$ 45,877
Available for sale securities, 12 months or longer, unrealized losses		$ (49)
Available for sale securities, total, number of investment positions		4
Available for sale securities, total, fair value		$ 55,828
Available for sale securities, total, unrealized losses		$ (98)
Agency Commercial 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	$ 3,585	$ 3,708
Available for sale securities, less than 12 months, unrealized losses	$ (16)	$ (3)
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	$ 3,585	$ 3,708
Available for sale securities, total, unrealized losses	$ (16)	$ (3)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	5	0
Available for sale securities, less than 12 months, fair value	$ 2,447	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ (2)	$ 0
Available for sale securities, 12 months or longer, number of investment positions	0	7
Available for sale securities, 12 months or longer, fair value	$ 0	$ 4,163
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ (44)
Available for sale securities, total, number of investment positions	5	7
Available for sale securities, total, fair value	$ 2,447	$ 4,163
Available for sale securities, total, unrealized losses	$ (2)	$ (44)
Held to Maturity securities, less than 12 months, number of investment positions		0
Held to Maturity securities, less than 12 months, fair value		$ 0
Held to Maturity securities, less than 12 months, unrecognized losses		$ 0
Held to Maturity securities, 12 months or longer, number of investment positions		1
Held to Maturity securities, 12 months or longer, fair value		$ 251
Held to Maturity securities, 12 months or longer, unrecognized losses		$ (1)
Held to Maturity securities, total, number of investment positions		1
Held to Maturity securities, total, fair value		$ 251
Held to Maturity securities, total, unrecognized losses		$ (1)
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	1	0
Available for sale securities, less than 12 months, fair value	$ 163	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ 0
Available for sale securities, 12 months or longer, number of investment positions	0	2
Available for sale securities, 12 months or longer, fair value	$ 0	$ 544
Available for sale securities, 12 months or longer, unrealized losses	$ 0	$ (9)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 163	$ 544
Available for sale securities, total, unrealized losses	$ 0	$ (9)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	0	8
Available for sale securities, less than 12 months, fair value	$ 0	$ 71,577
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ (162)
Available for sale securities, 12 months or longer, number of investment positions	2	11
Available for sale securities, 12 months or longer, fair value	$ 18,263	$ 64,380
Available for sale securities, 12 months or longer, unrealized losses	$ (199)	$ (717)
Available for sale securities, total, number of investment positions	2	19
Available for sale securities, total, fair value	$ 18,263	$ 135,957
Available for sale securities, total, unrealized losses	$ (199)	$ (879)
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Available for sale securities, less than 12 months, number of investment positions	4
Available for sale securities, less than 12 months, fair value	$ 99,874
Available for sale securities, less than 12 months, unrealized losses	$ (75)
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	4
Available for sale securities, total, fair value	$ 99,874
Available for sale securities, total, unrealized losses	$ (75)
Collateralized Loan Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions	29
Available for sale securities, less than 12 months, fair value	$ 216,358
Available for sale securities, less than 12 months, unrealized losses	$ (654)
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	29
Available for sale securities, total, fair value	$ 216,358
Available for sale securities, total, unrealized losses	$ (654)

Note 3 - Investment Securitie_6

Note 3 - Investment Securities - Allowance for Credit Losses (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020USD ($)
Beginning balance, prior to adoption of ASU 2016-13	$ 0
Impact of adopting ASU 2016-13	16
Provision	0
Chargeoffs	0
Recoveries	0
Total ending balance	16
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Total ending balance	$ 16

Note 3 - Investment Securitie_7

Note 3 - Investment Securities - Credit Quality (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Held to maturity	$ 577,811	$ 738,072
AAA/AA/A [Member]
Held to maturity	576,695
BBB [Member]
Held to maturity	101
BB/B [Member]
Held to maturity	1,015
Agency Residential MBS [Member]
Held to maturity	272,460	353,937
Agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	272,460
Agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Agency Residential MBS [Member] | BB/B [Member]
Held to maturity	0
Non-agency Residential MBS [Member]
Held to maturity	2,020	2,354
Non-agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	1,005
Non-agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Non-agency Residential MBS [Member] | BB/B [Member]
Held to maturity	1,015
US States and Political Subdivisions Debt Securities [Member]
Held to maturity	303,331	$ 381,781
US States and Political Subdivisions Debt Securities [Member] | AAA/AA/A [Member]
Held to maturity	303,230
US States and Political Subdivisions Debt Securities [Member] | BBB [Member]
Held to maturity	101
US States and Political Subdivisions Debt Securities [Member] | BB/B [Member]
Held to maturity	$ 0

Note 3 - Investment Securitie_8

Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Taxable	$ 23,079	$ 19,586	$ 67,963	$ 56,992
Tax-exempt from federal income tax	2,911	3,777	9,501	12,165
Total interest income from investment securities	$ 25,990	$ 23,363	$ 77,464	$ 69,157

Note 4 - Loans, Allowance for_3

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Loans and Leases Receivable, Allowance, Ending Balance	$ 24,142	$ 19,828	$ 24,142	$ 19,828	$ 24,529	$ 19,484	$ 20,117	$ 21,351
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	0		0			0
Financing Receivable, Troubled Debt Restructuring	$ 6,304		$ 6,304			6,713
Troubled Debt Restructurings During Period	0	0	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0	$ 0	$ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0	0	0
Financing Receivable, Held-for-Sale	$ 0		$ 0			0
Other Real Estate, Ending Balance	43		43			43
Other Real Estate, Reserve	0		0			0
Mortgage Loans in Process of Foreclosure, Amount	410		410			124
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	0		0			0
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	5,665	$ 4,068	5,665	$ 4,068	4,623	4,064	4,057	3,884
Financing Receivable, Troubled Debt Restructuring	6,121		6,121			6,492
Allowance for Credit Losses, Collateral-dependent Loans	$ 0		$ 0
Number of Collateral-dependent Loans	1		1
Collateral-dependent Loans, Balance	$ 3,420		$ 3,420
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	9,433	5,539	9,433	5,539	11,770	6,445	5,418	5,645
Collateral-dependent Loans, Balance	357		357
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	52	$ 222	52	$ 222	$ 57	206	$ 238	$ 869
Financing Receivable, Troubled Debt Restructuring	$ 183		$ 183			189
Number of Collateral-dependent Loans	2		2
Collateral-dependent Loans, Balance	$ 410		$ 410
Restructured Loans [Member]
Financing Receivable, Troubled Debt Restructuring	6,304		6,304			6,713
Impaired Loans, Restructured, Nonaccrual Status	$ 3,420		$ 3,420			$ 3,670
Commercial Real Estate [Member]
Financing Receivable, Number of Loans With Deferred Payments	17		17
Financing Receivable, Principal and Interest Deferred Payments	$ 19,100		$ 19,100
Other Consumer Loan [Member]
Financing Receivable, Number of Loans With Deferred Payments	140		140
Financing Receivable, Principal and Interest Deferred Payments	$ 5,000		$ 5,000
Commercial Loan [Member]
Financing Receivable, Number of Loans With Deferred Payments	5		5
Financing Receivable, Principal and Interest Deferred Payments	$ 209		$ 209
Other Commercial Real Estate Loans [Member]
Number of Collateral-dependent Loans	4		4
Collateral-dependent Loans, Balance	$ 7,700		$ 7,700
Nonperforming Financial Instruments [Member]
Loans and Leases Receivable, Allowance, Ending Balance	$ 0		$ 0

Note 4 - Loans, Allowance for_4

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loans	$ 1,310,009	$ 1,126,664
Commercial Portfolio Segment [Member]
Loans	445,605	222,085
Commercial Portfolio Segment [Member] | Paycheck Protection Program Loans [Member]
Loans	243,982	0
Commercial Portfolio Segment [Member] | Other Commercial Portfolio Segment [Member]
Loans	201,623	222,085
Commercial Real Estate Portfolio Segment [Member]
Loans	563,707	578,758
Construction Portfolio Segment [Member]
Loans	140	1,618
Residential Portfolio Segment [Member]
Loans	25,076	32,748
Consumer Portfolio Segment [Member]
Loans	$ 275,481	$ 291,455

Note 4 - Loans, Allowance for_5

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Balance at beginning of period	$ 24,529	$ 20,117	$ 19,484	$ 21,351
Provision (reversal)	0	0	4,300	0
Chargeoffs	(872)	(1,039)	(3,249)	(3,403)
Recoveries	485	750	1,590	1,880
Total allowance for credit losses	24,142	19,828	24,142	19,828
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		4,052	3,701	3,177
Provision (reversal)		(524)	0	351
Chargeoffs		0	0	0
Recoveries		0	0	0
Total allowance for credit losses	0	3,528	0	3,528
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	8,072	5,235	4,959	6,311
Provision (reversal)	867	(596)	537	(1,817)
Chargeoffs	0	0	(178)	(71)
Recoveries	46	233	282	449
Total allowance for credit losses	8,985	4,872	8,985	4,872
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	4,623	4,057	4,064	3,884
Provision (reversal)	1,030	(1)	946	146
Chargeoffs	0	0	0	0
Recoveries	12	12	37	38
Total allowance for credit losses	5,665	4,068	5,665	4,068
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	7	1,117	109	1,465
Provision (reversal)	0	482	(71)	134
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for credit losses	7	1,599	7	1,599
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	57	238	206	869
Provision (reversal)	(5)	(16)	(22)	(647)
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for credit losses	52	222	52	222
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	11,770	5,418	6,445	5,645
Provision (reversal)	(1,892)	655	2,910	1,833
Chargeoffs	(872)	(1,039)	(3,071)	(3,332)
Recoveries	427	505	1,271	1,393
Total allowance for credit losses	$ 9,433	$ 5,539	9,433	$ 5,539
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 Loan Losses/Credit Losses and Other Real Estate Owned - Recorded Investment in Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Individually evaluated for impairment			$ 2,413
Collectively evaluated for impairment			17,071
Total allowance for loan losses	$ 24,142	$ 24,529	19,484	$ 19,828	$ 20,117	$ 21,351
Individually evaluated for impairment			15,824
Collectively evaluated for impairment			1,110,840
Financing Receivable, before Allowance for Credit Loss, Total	1,310,009		1,126,664
Unallocated Financing Receivable [Member]
Individually evaluated for impairment			0
Collectively evaluated for impairment			3,701
Total allowance for loan losses	0		3,701	3,528	4,052	3,177
Individually evaluated for impairment			0
Collectively evaluated for impairment			0
Financing Receivable, before Allowance for Credit Loss, Total			0
Commercial Portfolio Segment [Member]
Individually evaluated for impairment			2,413
Collectively evaluated for impairment			2,546
Total allowance for loan losses	8,985	8,072	4,959	4,872	5,235	6,311
Individually evaluated for impairment			8,182
Collectively evaluated for impairment			213,903
Financing Receivable, before Allowance for Credit Loss, Total	445,605		222,085
Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment			0
Collectively evaluated for impairment			4,064
Total allowance for loan losses	5,665	4,623	4,064	4,068	4,057	3,884
Individually evaluated for impairment			7,409
Collectively evaluated for impairment			571,349
Financing Receivable, before Allowance for Credit Loss, Total	563,707		578,758
Construction Portfolio Segment [Member]
Individually evaluated for impairment			0
Collectively evaluated for impairment			109
Total allowance for loan losses	7	7	109	1,599	1,117	1,465
Individually evaluated for impairment			0
Collectively evaluated for impairment			1,618
Financing Receivable, before Allowance for Credit Loss, Total	140		1,618
Residential Portfolio Segment [Member]
Individually evaluated for impairment			0
Collectively evaluated for impairment			206
Total allowance for loan losses	52	57	206	222	238	869
Individually evaluated for impairment			190
Collectively evaluated for impairment			32,558
Financing Receivable, before Allowance for Credit Loss, Total	25,076		32,748
Consumer Portfolio Segment [Member]
Individually evaluated for impairment			0
Collectively evaluated for impairment			6,445
Total allowance for loan losses	9,433	$ 11,770	6,445	$ 5,539	$ 5,418	$ 5,645
Individually evaluated for impairment			43
Collectively evaluated for impairment			291,412
Financing Receivable, before Allowance for Credit Loss, Total	$ 275,481		$ 291,455

Note 4 - Loans, Allowance for_7

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loans	$ 1,310,009	$ 1,126,664
Pass [Member]
Loans	1,282,020	1,103,164
Substandard [Member]
Loans	27,079	22,798
Doubtful [Member]
Loans	505	308
Unlikely to be Collected Financing Receivable [Member]
Loans	405	394
Commercial Portfolio Segment [Member]
Loans	445,605	222,085
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	437,216	213,542
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	8,389	8,543
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	563,707	578,758
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	546,714	567,525
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	16,993	11,233
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	140	1,618
Construction Portfolio Segment [Member] | Pass [Member]
Loans	140	1,618
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	25,076	32,748
Residential Portfolio Segment [Member] | Pass [Member]
Loans	23,699	31,055
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	1,377	1,693
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	275,481	291,455
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	274,251	289,424
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	320	1,329
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	505	308
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 405	$ 394

Note 4 - Loans, Allowance for_8

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current and accruing	$ 1,300,985	$ 1,114,951
Nonaccrual	4,380	4,440
Financing Receivable, before Allowance for Credit Loss, Total	1,310,009	1,126,664
Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	3,473	4,197
Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	811	2,636
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	360	440
Commercial Portfolio Segment [Member]
Current and accruing	444,496	221,199
Nonaccrual	107	197
Financing Receivable, before Allowance for Credit Loss, Total	445,605	222,085
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	963	531
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	39	158
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	559,361	573,809
Nonaccrual	3,722	4,096
Financing Receivable, before Allowance for Credit Loss, Total	563,707	578,758
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	624	432
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	421
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	140	1,618
Nonaccrual	0	0
Financing Receivable, before Allowance for Credit Loss, Total	140	1,618
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	24,357	31,934
Nonaccrual	161	0
Financing Receivable, before Allowance for Credit Loss, Total	25,076	32,748
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	558	274
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	540
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	272,631	286,391
Nonaccrual	390	147
Financing Receivable, before Allowance for Credit Loss, Total	275,481	291,455
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	1,328	2,960
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	772	1,517
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	$ 360	$ 440

Note 4 - Loans, Allowance for_9

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Impaired Loans (Details) $ in Thousands	Dec. 31, 2019USD ($)
Impaired loans with no related allowance recorded, recorded investment	$ 7,662
Impaired loans with no related allowance recorded, unpaid principal balance	9,140
Impaired loans with an allowance recorded, recorded investment	8,160
Impaired loans with an allowance recorded, unpaid principal balance	8,160
Impaired loans with an allowance recorded, related allowance	2,413
Total impaired loans, recorded investment	15,822
Total impaired loans, unpaid principal balance	17,300
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	21
Impaired loans with no related allowance recorded, unpaid principal balance	21
Impaired loans with an allowance recorded, recorded investment	8,160
Impaired loans with an allowance recorded, unpaid principal balance	8,160
Impaired loans with an allowance recorded, related allowance	2,413
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	7,408
Impaired loans with no related allowance recorded, unpaid principal balance	8,856
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	190
Impaired loans with no related allowance recorded, unpaid principal balance	220
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	43
Impaired loans with no related allowance recorded, unpaid principal balance	$ 43

Note 4 - Loans, Allowance fo_10

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Impaired Loans, Supplemental Schedule (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Average Recorded Investment	$ 16,962	$ 16,836
Recognized Interest Income	208	819
Commercial Portfolio Segment [Member]
Average Recorded Investment	8,701	9,404
Recognized Interest Income	144	476
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	7,968	7,133
Recognized Interest Income	60	333
Residential Portfolio Segment [Member]
Average Recorded Investment	194	196
Recognized Interest Income	4	10
Consumer Portfolio Segment [Member]
Average Recorded Investment	99	103
Recognized Interest Income	$ 0	$ 0

Note 4 - Loans, Allowance fo_11

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Number of Contracts	7	9
Pre-Modification Carrying Value	$ 8,608	$ 8,886
Financing Receivable, Troubled Debt Restructuring	6,304	6,713
Period-End Individual Impairment Allowance	$ 0	$ 11
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	6	6
Pre-Modification Carrying Value	$ 8,367	$ 8,367
Financing Receivable, Troubled Debt Restructuring	6,121	6,492
Period-End Individual Impairment Allowance	$ 0	$ 0
Commercial Portfolio Segment [Member]
Number of Contracts		2
Pre-Modification Carrying Value		$ 278
Financing Receivable, Troubled Debt Restructuring		32
Period-End Individual Impairment Allowance		$ 11
Residential Portfolio Segment [Member]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 241	$ 241
Financing Receivable, Troubled Debt Restructuring	183	189
Period-End Individual Impairment Allowance	$ 0	$ 0

Note 4 - Loans, Allowance fo_12

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loans	$ 1,310,009	$ 1,126,664
Current	1,300,985	1,114,951
Nonaccrual	4,380	4,440
Financial Asset, 30 to 59 Days Past Due [Member]
Past due	3,473	4,197
Financial Asset, 60 to 89 Days Past Due [Member]
Past due	811	2,636
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	360	440
Commercial Portfolio Segment [Member]
Originated prior	20,560
Originated 2015	5,205
Originated 2016	26,133
Originated 2017	10,860
Originated 2018	21,343
Originated 2019	42,380
Originated 2020	278,540
Total term loans	405,021
Revolving loans	40,584
Loans	445,605	222,085
Current	444,496	221,199
Nonaccrual	107	197
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	963	531
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	39	158
Commercial 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]
Originated prior	93,468
Originated 2015	52,078
Originated 2016	53,725
Originated 2017	101,838
Originated 2018	95,622
Originated 2019	94,531
Originated 2020	72,445
Total term loans	563,707
Revolving loans	0
Loans	563,707	578,758
Current	559,361	573,809
Nonaccrual	3,722	4,096
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	624	432
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	421
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Construction Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	140
Loans	140	1,618
Current	140	1,618
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
Residential Portfolio Segment [Member]
Originated prior	25,076
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	25,076
Revolving loans	0
Loans	25,076	32,748
Current	24,357	31,934
Nonaccrual	161	0
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	558	274
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0	540
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Consumer Portfolio Segment [Member]
Loans	275,481	291,455
Current	272,631	286,391
Nonaccrual	390	147
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,328	2,960
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	772	1,517
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	360	440
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	5,124
Current	5,087
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	35
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	2
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	6,583
Current	6,457
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	91
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	30
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	5
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	19,563
Current	19,339
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	147
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	48
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	29
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	24,941
Current	24,554
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	224
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	163
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	54,166
Current	53,347
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	266
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	327
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	226
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	69,941
Current	69,313
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	402
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	160
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	66
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	65,112
Current	64,893
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	148
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	40
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	31
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	245,430
Current	242,990
Nonaccrual	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,313
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	770
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	357
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	30,051
Current	29,641
Nonaccrual	390
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	15
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	2
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	3
Pass [Member]
Loans	1,282,020	1,103,164
Pass [Member] | Commercial Portfolio Segment [Member]
Originated prior	20,496
Originated 2015	5,205
Originated 2016	26,132
Originated 2017	10,860
Originated 2018	21,343
Originated 2019	42,380
Originated 2020	270,664
Total term loans	397,080
Revolving loans	40,136
Loans	437,216	213,542
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	88,661
Originated 2015	50,764
Originated 2016	43,804
Originated 2017	101,731
Originated 2018	95,622
Originated 2019	94,531
Originated 2020	71,601
Total term loans	546,714
Revolving loans	0
Loans	546,714	567,525
Pass [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	140
Loans	140	1,618
Pass [Member] | Residential Portfolio Segment [Member]
Originated prior	23,699
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	23,699
Revolving loans	0
Loans	23,699	31,055
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	274,251	289,424
Substandard [Member]
Loans	27,079	22,798
Substandard [Member] | Commercial Portfolio Segment [Member]
Originated prior	64
Originated 2015	0
Originated 2016	1
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	7,876
Total term loans	7,941
Revolving loans	448
Loans	8,389	8,543
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	4,807
Originated 2015	1,314
Originated 2016	9,921
Originated 2017	107
Originated 2018	0
Originated 2019	0
Originated 2020	844
Total term loans	16,993
Revolving loans	0
Loans	16,993	11,233
Substandard [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Substandard [Member] | Residential Portfolio Segment [Member]
Originated prior	1,377
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	1,377
Revolving loans	0
Loans	1,377	1,693
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	320	1,329
Doubtful [Member]
Loans	505	308
Doubtful [Member] | Commercial Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020
Total term loans	0
Revolving loans	0
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	505	308
Unlikely to be Collected Financing Receivable [Member]
Loans	405	394
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020
Total term loans	0
Revolving loans	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Originated prior	0
Originated 2015	0
Originated 2016	0
Originated 2017	0
Originated 2018	0
Originated 2019	0
Originated 2020	0
Total term loans	0
Revolving loans	0
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 405	$ 394

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
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 and Standby Letters of Credit Related to Real Estate Loans	$ 39,779	$ 43,129
Corporate Debt Securities [Member]
Concentration Risk, Issuer Relationships	97
Concentration Risk, Aggregate Securities Amount	$ 5,000
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Concentration Risk, Issuer Relationships	9
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	Sep. 30, 2020USD ($)$ / shares	Sep. 30, 2020USD ($)$ / shares	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)shares
LIHTC Investments			$ 18,935	$ 18,935	$ 20,773
Qualified Affordable Housing Project Investments, Commitment			13,397	13,397	16,231
Deferred Tax Liabilities, Net, Total			21,819	21,819	0
Deferred Income Tax Expense (Benefit), Total				(21,942)
Deferred Tax Liabilities, Investments			43,492	43,492
Debt Securities, Available-for-sale, Unrealized Gain (Loss), Total				147,115
Deferred Tax Assets, Net, Total			$ 0	$ 0	11,085
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross					10,934
Lessee, Operating Lease, Term of Contract (Year)			5 years	5 years
Lessee, Operating Lease, Renewal Term (Year)			5 years	5 years
Operating Lease, Liability, Total			$ 19,098	$ 19,098	17,136
Operating Lease, Right-of-Use Asset			$ 19,098	$ 19,098	$ 17,136
Operating Lease, Weighted Average Remaining Lease Term (Year)			4 years 9 months 18 days	4 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent			2.25%	2.25%
Operating Lease, Cost			$ 1,671	$ 4,988
Contingent Commitment, Remainder of Fiscal Year [Member]
Qualified Affordable Housing Project Investments, Commitment			2,248	2,248
Contingent Commitment, Year 2 [Member]
Qualified Affordable Housing Project Investments, Commitment			4,071	4,071
Contingent Commitment, Year 3 [Member]
Qualified Affordable Housing Project Investments, Commitment			5,983	5,983
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment			295	295
Contingent Commitment, Year 5 [Member]
Qualified Affordable Housing Project Investments, Commitment			24	24
Contingent Commitment, Year 6 [Member]
Qualified Affordable Housing Project Investments, Commitment			228	228
Contingent Commitment, Year 7 [Member]
Qualified Affordable Housing Project Investments, Commitment			74	74
Contingent Commitment, Year 8 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment			$ 474	$ 474
Visa Inc. [Member]
Share Price (in dollars per share) | $ / shares			$ 199.97	$ 199.97
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		Sep. 30, 2020	Dec. 31, 2019
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		59,868	57,810
Net deferred tax asset		0	11,085
Right-of-use asset		19,098	17,136
Limited partnership investments		18,935	20,773
Interest receivable		30,779	28,797
Prepaid assets		3,619	3,737
Other assets		13,743	10,767
Total other assets		$ 160,269	$ 164,332
[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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Investment loss included in pre-tax income	$ 640	$ 600	$ 1,840	$ 1,800
Tax credits recognized in provision for income taxes	$ 225	$ 225	$ 675	$ 675

Note 6 - Other Assets and Oth_6

Note 6 - Other Assets and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Net deferred tax liability	$ 21,819	$ 0
Operating lease liability	19,098	17,136
Other liabilities	49,559	27,453
Total other liabilities	$ 90,476	$ 44,589

Note 6 - Other Assets and Oth_7

Note 6 - Other Assets and Other Liabilities - Maturity of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
The remaining three months of 2020	$ 1,599
2021	5,353
2022	4,426
2023	3,689
2024	2,078
Thereafter	2,863
Total minimum lease payments	20,008
Less: discount	(910)
Operating lease liability	$ 19,098	$ 17,136

Note 7 - Goodwill and Identif_3

Note 7 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2019
Goodwill and Intangible Asset Impairment, Total	$ 0	$ 0	$ 0
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0	$ 0

Note 7 - Goodwill and Identif_4

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
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	Sep. 30, 2020	Dec. 31, 2019
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated Amortization	$ (55,635)	$ (55,417)

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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
For the nine months ended September 30, 2020 (actual)	$ 72	$ 76	$ 218	$ 465
Core Deposits [Member]
For the nine months ended September 30, 2020 (actual)			218
Estimate for the remainder of year ending December 31, 2020	69		69
Estimate for year ending December 31, 2021	269		269
2022	252		252
2023	236		236
2024	222		222
2025	$ 125		$ 125

Note 8 - Deposits and Borrowe_3

Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Demand Deposit Overdrafts	$ 1,466		$ 1,466		$ 1,055
Interest Expense, Time Deposits, $100,000 or More	$ 80	$ 81	$ 238	$ 246

Note 8 - Deposits and Borrowe_4

Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Noninterest-bearing	$ 2,684,028	$ 2,240,112
Interest-bearing:
Transaction	1,040,712	931,888
Savings	1,653,000	1,471,284
Time deposits less than $100 thousand	83,838	88,355
Time deposits $100 thousand through $250 thousand	50,378	54,874
Time deposits more than $250 thousand	27,234	26,108
Total deposits	$ 5,539,190	$ 4,812,621

Note 8 - Deposits and Borrowe_5

Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Collateral Carrying Value	$ 260,162	$ 264,571
Short-term borrowed funds	107,973	30,928
US Government-sponsored Enterprises Debt Securities [Member]
Collateral Carrying Value	0	65,833
Agency Residential MBS [Member]
Collateral Carrying Value	76,715	52,485
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 183,447	$ 146,253

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual)	9 Months Ended
	Sep. 30, 2020
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		Sep. 30, 2020		Dec. 31, 2019
Investment securities available for sale		$ 3,983,994		$ 3,078,846
Agency Residential MBS [Member]
Investment securities available for sale		745,297		939,750
US Treasury Securities [Member]
Investment securities available for sale				20,000
Agency Commercial MBS [Member]
Investment securities available for sale		3,585		3,708
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale				111,167
US Government Agencies Debt Securities [Member]
Investment securities available for sale		163		544
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		127,172		163,139
Debt Security, Corporate, US [Member]
Investment securities available for sale		2,212,827		1,833,783
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Investment securities available for sale		224,816
Fair Value, Recurring [Member]
Investment securities available for sale		3,983,994		3,078,846
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		20,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		3,983,994		3,058,846
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		745,297		939,750
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		745,297		939,750
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Investment securities available for sale				20,000
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale				20,000
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale				0
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale	[2]			0
Fair Value, Recurring [Member] | Agency Commercial MBS [Member]
Investment securities available for sale		3,585		3,708
Fair Value, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		3,585		3,708
Fair Value, Recurring [Member] | Agency Commercial MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale				111,167
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale				0
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale				111,167
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale	[2]			0
Fair Value, Recurring [Member] | US Government Agencies Debt Securities [Member]
Investment securities available for sale		163		544
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		163		544
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		127,172		163,139
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		127,172		163,139
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		2,212,827		1,833,783
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		2,212,827		1,833,783
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] | Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Investment securities available for sale		224,816
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
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		224,816
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
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member]
Investment securities available for sale		670,134		6,755
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		670,134		6,755
Fair Value, Recurring [Member] | Collateralized Loan Obligations [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		$ 0	[1]	$ 0
[1]	There were no transfers in to or out of level 3 during the nine months ended September 30, 2020.
[2]	There were no transfers in to or out of level 3 during the twelve months ended December 31, 2019.

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	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Fair Value	$ 9,353	$ 10,071
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	9,353	10,071
Other Real Estate Owned [Member]
Fair Value	43	43
Total Losses	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value	0	0
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	43	43
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Fair Value	5,354	5,747
Total Losses	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	3,773	4,091
Total Losses	0	0
Impaired Loans [Member] | Residential Portfolio Segment [Member]
Fair Value	183	190
Total Losses	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Residential Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Residential Portfolio Segment [Member]
Fair Value	0	0
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member]
Fair Value	5,354	5,747
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	3,773	4,091
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member]
Fair Value	$ 183	$ 190

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	Sep. 30, 2020	Dec. 31, 2019
Reported Value Measurement [Member]
Cash and due from banks	$ 398,964	$ 373,421
Debt securities held to maturity	577,795	738,072
Loans	1,285,867	1,107,180
Deposits	5,539,190	4,812,621
Short-term borrowed funds	107,973	30,928
Estimate of Fair Value Measurement [Member]
Cash and due from banks	398,964	373,421
Debt securities held to maturity	593,701	744,296
Loans	1,347,245	1,152,949
Deposits	5,539,300	4,810,934
Short-term borrowed funds	107,973	30,928
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	398,964	373,421
Debt securities held to maturity	0	0
Loans	0	0
Deposits	0	0
Short-term borrowed funds	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Cash and due from banks	0	0
Debt securities held to maturity	593,701	744,296
Loans	0	0
Deposits	5,377,740	4,643,284
Short-term borrowed funds	107,973	30,928
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	1,347,245	1,152,949
Deposits	161,560	167,650
Short-term borrowed funds	$ 0	$ 0

Note 10 - Commitments and Con_2

Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Sep. 30, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2017
Loan Commitments, Not Unconditionally Cancellable		$ 39,779
Unfunded Loan Commitments		279,330		$ 265,311
Guarantor Obligations, Current Carrying Value		580		550
Reserve for Unfunded Commitments			$ 2,160
Other Liabilities [Member]
Reserve for Unfunded Commitments		53		2,160
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount		2,356		3,099
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount		$ 0		$ 0
Customer Refunds [Member]
Loss Contingency Accrual, Ending Balance	$ 5,843				$ 5,542
Loss Contingency Accrual, Period Increase (Decrease), Total	$ 301

Note 11 - Earnings Per Common_3

Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	567	379	560	425

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		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income applicable to common equity (numerator)	$ 20,051	$ 20,390	$ 56,575	$ 59,661
Weighted average number of common shares outstanding - basic (in shares)	26,930	26,986	26,977	26,924
Basic earnings per common share (in dollars per share)	$ 0.74	$ 0.76	$ 2.10	$ 2.22
Add common stock equivalents for options (in shares)	16	41	21	52
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	26,946	27,027	26,998	26,976
Diluted earnings per common share (in dollars per share)	$ 0.74	$ 0.75	$ 2.10	$ 2.21

Note 12 - Impact of COVID-19 (D

Note 12 - Impact of COVID-19 (Details Textual) $ in Thousands	Sep. 30, 2020USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2019USD ($)
Financing Receivable, before Allowance for Credit Loss, Total	$ 1,310,009		$ 1,126,664
Debt Securities, Available-for-sale, Amortized Cost, Total	3,836,879		3,041,860
Debt Securities, Available-for-sale, Total	$ 3,983,994		$ 3,078,846
Corporate Debt Securities in Industrial and Energy Sectors [Member]
Debt Securities, Available-for-Sale, Number of Issuers	14
Debt Securities, Available-for-sale, Amortized Cost, Total	$ 275,300
Debt Securities, Available-for-sale, Total	288,700
Other Consumer Loan [Member]
Financing Receivable, Principal and Interest Deferred Payments	5,000
Commercial Real Estate [Member]
Financing Receivable, Principal and Interest Deferred Payments	19,100
Commercial Loan [Member]
Financing Receivable, Principal and Interest Deferred Payments	209
SBA CARES Act Paycheck Protection Program [Member]
Financing Receivable, before Allowance for Credit Loss, Total	$ 244,000	$ 249,000