10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

☑ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2020

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the transition period from __________ to __________.                              

Commission file number: 001-09383

WESTAMERICA BANCORPORATION

(Exact Name of Registrant as Specified in Its Charter)

California	94-2156203
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

1108 Fifth Avenue, San Rafael, California 94901

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, Including Area Code (707) 863-6000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, no par value	WABC	The Nasdaq Stock Market, LLC

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes ☑                                                                             No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes ☑                                                                              No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ☑	Accelerated filer ☐		Non-accelerated filer ☐
Smaller reporting company ☐		Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ☐                                                                              No ☑

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date:

Title of Class	Shares outstanding as of April 30, 2020
Common Stock, No Par Value	26,939,348

TABLE OF CONTENTS

		Page
Forward Looking Statements		3
PART I - FINANCIAL INFORMATION
Item 1	Financial Statements	4
	Notes to Unaudited Consolidated Financial Statements	9
Item 2	Management's Discussion and Analysis of Financial Condition and Results of Operations	32
Item 3	Quantitative and Qualitative Disclosures about Market Risk	52
Item 4	Controls and Procedures	53
PART II - OTHER INFORMATION
Item 1	Legal Proceedings	53
Item 1A	Risk Factors	53
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	54
Item 3	Defaults upon Senior Securities	55
Item 4	Mine Safety Disclosures	55
Item 5	Other Information	55
Item 6	Exhibits	55
Signatures		56

-2-

FORWARD-LOOKING STATEMENTS

This report on Form 10-Q contains forward-looking statements about Westamerica Bancorporation (the “Company”) for which it claims the protection of the safe harbor provisions contained in the Private Securities Litigation Reform Act of 1995. Examples of forward-looking statements include, but are not limited to: (i) projections of revenues, expenses, future credit quality and performance, the appropriateness of the allowance for credit losses, loan growth or reduction, mitigation of risk in the Company’s loan and investment securities portfolios, income or loss, earnings or loss per share, the payment or nonpayment of dividends, capital structure and other financial items; (ii) statements of plans, objectives and expectations of the Company or its management or board of directors, including those relating to products or services; (iii) statements of future economic performance; and (iv) statements of assumptions underlying such statements. Words such as "believes", "anticipates", "expects", “estimates”, "intends", "targeted", "projected", “forecast”, "continue", "remain", "will", "should", "may" and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

These forward-looking statements are based on Management’s current knowledge and belief and include information concerning the Company’s possible or assumed future financial condition and results of operations. A number of factors, some of which are beyond the Company’s ability to predict or control, could cause future results to differ materially from those contemplated. These factors include but are not limited to (1) the length and severity of difficulties in the global, national and California economies and the effects of government efforts to address those difficulties; (2) liquidity levels in capital markets; (3) fluctuations in asset prices including, but not limited to stocks, bonds, real estate, and commodities; (4) the effect of acquisitions and integration of acquired businesses; (5) economic uncertainty created by terrorist threats and attacks on the United States, the actions taken in response, and the uncertain effect of these events on the national and regional economies; (6) changes in the interest rate environment; (7) changes in the regulatory environment; (8) competitive pressure in the banking industry; (9) operational risks including a failure or breach in data processing or security systems or those of third party vendors and other service providers, including as a result of cyber attacks or fraud; (10) volatility of interest rate sensitive loans, deposits and investments; (11) asset/liability management risks and liquidity risks; (12) the effect of natural disasters, including earthquakes, fire, flood, drought, pandemics and other disasters on the Company, including on the uninsured value of the Company’s assets and of loan collateral, the financial condition of debtors and issuers of investment securities, the economic conditions affecting the Company’s market place, and commodities and asset values; (13) changes in the securities markets; and (14) the outcome of contingencies, such as legal proceedings. However, the reader should not consider the above-mentioned factors to be a complete set of all potential risks or uncertainties.

Forward-looking statements speak only as of the date they are made. The Company undertakes no obligation to update any forward-looking statements in this report to reflect circumstances or events that occur after the date forward looking statements are made, except as may be required by law. The reader is directed to the Company's Form 8-K filed on April 16, 2020, and the annual report on Form 10-K for the year ended December 31, 2019, for further discussion of factors which could affect the Company's business and cause actual results to differ materially from those expressed in any forward-looking statement made in this report.

-3-

PART I - FINANCIAL INFORMATION

Item 1      Financial Statements

WESTAMERICA BANCORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited)

	At March 31,			At December 31,
	2020			2019
	(In thousands)
Assets:
Cash and due from banks	$	304,628		$	373,421
Debt securities available for sale		3,210,689			3,078,846
Debt securities held to maturity (DSHTM), net of allowance for credit losses (DSHTM) of $16 at March 31, 2020 and $ - at December 31, 2019 (Fair value of $695,860 at March 31, 2020 and $744,296 at December 31, 2019)		681,821			738,072
Loans		1,121,243			1,126,664
Allowance for credit losses (loans)		(24,804	)		(19,484	)
Loans, net of allowance for credit losses (loans)		1,096,439			1,107,180
Other real estate owned		43			43
Premises and equipment, net		35,403			34,597
Identifiable intangibles, net		1,318			1,391
Goodwill		121,673			121,673
Other assets		176,112			164,332
Total Assets	$	5,628,126		$	5,619,555
Liabilities:
Noninterest-bearing deposits	$	2,183,283		$	2,240,112
Interest-bearing deposits		2,616,143			2,572,509
Total deposits		4,799,426			4,812,621
Short-term borrowed funds		52,664			30,928
Other liabilities		70,490			44,589
Total Liabilities		4,922,580			4,888,138
Contingencies (Note 10)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,932 at March 31, 2020 and 27,062 at December 31, 2019		465,701			465,460
Deferred compensation		771			771
Accumulated other comprehensive income		171			26,051
Retained earnings		238,903			239,135
Total Shareholders' Equity		705,546			731,417
Total Liabilities and Shareholders' Equity	$	5,628,126		$	5,619,555

See accompanying notes to unaudited consolidated financial statements.

-4-

WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF INCOME

(unaudited)

	For the
	Three Months Ended
	March 31,
	2020		2019
	(In thousands,
	except per share data)
Interest and Fee Income:
Loans	$	13,809	$	14,797
Equity securities		103		98
Debt securities available for sale		21,315		17,521
Debt securities held to maturity		3,908		5,329
Interest-bearing cash		856		1,738
Total Interest and Fee Income		39,991		39,483
Interest Expense:
Deposits		434		485
Short-term borrowed funds		8		9
Total Interest Expense		442		494
Net Interest and Fee Income		39,549		38,989
Provision for Credit Losses		4,300		-
Net Interest and Fee Income After Provision For Credit Losses		35,249		38,989
Noninterest Income:
Service charges on deposit accounts		4,248		4,504
Merchant processing services		2,358		2,558
Debit card fees		1,468		1,507
Trust fees		777		717
ATM processing fees		579		633
Other service fees		506		577
Financial services commissions		125		101
Securities gains		-		24
Other noninterest income		1,587		958
Total Noninterest Income		11,648		11,579
Noninterest Expense:
Salaries and related benefits		13,018		13,108
Occupancy and equipment		4,932		5,048
Outsourced data processing services		2,405		2,369
Courier service		491		442
Professional fees		389		665
Amortization of identifiable intangibles		73		310
Other noninterest expense		3,356		3,241
Total Noninterest Expense		24,664		25,183
Income Before Income Taxes		22,233		25,385
Provision for income taxes		5,271		5,739
Net Income	$	16,962	$	19,646
Average Common Shares Outstanding		27,068		26,841
Average Diluted Common Shares Outstanding		27,139		26,912
Per Common Share Data:
Basic earnings	$	0.63	$	0.73
Diluted earnings		0.63		0.73
Dividends paid		0.41		0.40

See accompanying notes to unaudited consolidated financial statements.

-5-

WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(unaudited)

	For the Three Months Ended
	March 31,
	2020			2019
	(In thousands)
Net income	$	16,962		$	19,646
Other comprehensive income (loss):
Changes in net unrealized gains on debt securities available for sale		(36,744	)		40,813
Deferred tax benefit (expense)		10,864			(12,066	)
Changes in net unrealized gains on debt securities available for sale, net of tax		(25,880	)		28,747
Total comprehensive (loss) income	$	(8,918	)	$	48,393

See accompanying notes to unaudited consolidated financial statements.

-6-

WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY

(unaudited)

										Accumulated
	Common									Other
	Shares			Common			Deferred			Comprehensive			Retained
	Outstanding			Stock			Compensation			(Loss) Income			Earnings			Total
	(In thousands except dividend per share)
Balance, December 31, 2018		26,730		$	448,351		$	1,395		$	(39,996	)	$	205,841		$	615,591
Cumulative effect of bond premium amortization adjustment, net of tax														(2,801	)		(2,801	)
Adjusted Balance, January 1, 2019		26,730			448,351			1,395			(39,996	)		203,040			612,790
Net income for the period														19,646			19,646
Other comprehensive income											28,747						28,747
Shares issued from stock warrant exercise, net of repurchase		51															-
Exercise of stock options		120			5,771												5,771
Restricted stock activity					624			(624	)								-
Stock based compensation					541												541
Stock awarded to employees		-			17												17
Dividends ($0.40 per share)														(10,745	)		(10,745	)
Balance, March 31, 2019		26,901		$	455,304		$	771		$	(11,249	)	$	211,941		$	656,767
Balance, December 31, 2019		27,062		$	465,460		$	771		$	26,051		$	239,135		$	731,417
Adoption of ASU 2016-13														52			52
Adjusted Balance, January 1, 2020		27,062			465,460			771			26,051			239,187			731,469
Net income for the period														16,962			16,962
Other comprehensive loss											(25,880	)					(25,880	)
Exercise of stock options		40			2,266												2,266
Restricted stock activity		10			534												534
Stock based compensation					525												525
Stock awarded to employees		-			21												21
Retirement of common stock		(180	)		(3,105	)								(6,142	)		(9,247	)
Dividends ($0.41 per share)														(11,104	)		(11,104	)
Balance, March 31, 2020		26,932		$	465,701		$	771		$	171		$	238,903		$	705,546

See accompanying notes to unaudited consolidated financial statements.

-7-

WESTAMERICA BANCORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS 

(unaudited)

	For the Three Months
	Ended March 31,
	2020			2019
	(In thousands)
Operating Activities:
Net income	$	16,962		$	19,646
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion		6,304			4,809
Credit loss provision		4,300			-
Net amortization of deferred net loan fees		(18	)		(215	)
(Increase) decrease in interest income receivable		(201	)		1,887
Increase in income taxes payable		4,572			1,575
Decrease in deferred tax asset		879			3,175
Increase in other assets		(3,625	)		(1,952	)
Stock option compensation expense		525			541
Increase in interest expense payable		10			8
Increase (decrease) in other liabilities		24,743			(6,013	)
Securities gains		-			(24	)
Net Cash Provided by Operating Activities		54,451			23,437
Investing Activities:
Net repayments of loans		4,545			1,836
Purchases of debt securities available for sale		(438,122	)		(219,414	)
Proceeds from sale/maturity/calls of debt securities available for sale		266,561			210,429
Proceeds from maturity/calls of debt securities held to maturity		55,112			57,461
Purchases of premises and equipment		(1,796	)		(393	)
Proceeds from sale of foreclosed assets		-			307
Net Cash (Used in) Provided by Investing Activities		(113,700	)		50,226
Financing Activities:
Net change in deposits		(13,195	)		(74,255	)
Net change in short-term borrowings		21,736			7,070
Exercise of stock options/issuance of shares		2,266			5,771
Retirement of common stock		(9,247	)		-
Common stock dividends paid		(11,104	)		(10,745	)
Net Cash Used in Financing Activities		(9,544	)		(72,159	)
Net Change In Cash and Due from Banks		(68,793	)		1,504
Cash and Due from Banks at Beginning of Period		373,421			420,284
Cash and Due from Banks at End of Period	$	304,628		$	421,788
Supplemental Cash Flow Disclosures:
Supplemental disclosure of noncash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	$	-		$	19,444
Amount recognized upon initial adoption of ASU 2016-02 included above		-			15,325
Loan collateral transferred to other real estate owned		-			-
Securities purchases pending settlement		607			-
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities		1,659			1,750
Interest paid for the period		432			486
Income tax payments for the period		-			-

See accompanying notes to unaudited consolidated financial statements.

-8-

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

Note 1: Basis of Presentation

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 months ended March 31, 2020 are not necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

Note 2: Accounting Policies

The most significant accounting policies followed by the Company are presented in Note 1 to the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, it is reasonably possible conditions could change materially affecting results of operations and financial conditions.

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 carried on the financial statements at fair value warrants a writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when available.

Certain amounts in prior periods have been reclassified to conform to the current presentation.

Recently Adopted Accounting Standards

In the three months ended March 31, 2020, the Company adopted the following new accounting guidance:

FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, was issued on June 16, 2016. The ASU significantly changed estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB replaced the incurred loss model with the current expected credit loss (CECL) model, which accelerated recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale are recorded through an allowance for credit losses under the new standard. The Company is also required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company adopted the ASU provisions on a modified retrospective basis on January 1, 2020. Management evaluated available data, defined portfolio segments of loans with similar attributes, and selected loss estimate models for each identified loan portfolio segment. Management measured historical loss rates for each portfolio segment. Management also segmented debt securities held to maturity, selected methods to estimate losses for each segment, and measured a loss estimate. Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. The adjustment to the allowance for credit losses was recorded through an offsetting after-tax adjustment to shareholders’ equity. The implementing entry increased allowance for credit losses by $2,017 thousand, reduced allowance for credit losses for unfunded credit commitments by $2,107 thousand and increased retained earnings by $52 thousand.

- 9-

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 (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 (loans)	$	19,484	$	2,017		$	21,501
Allowance for credit losses (debt securities held to maturity)		-		16			16
Labilities
Allowance for credit losses for unfunded commitments		2,160		(2,107	)		53

Debt Securities. Debt securities consist of securities of government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities and asset-backed securities. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling them in the near term. Trading securities are recorded at fair value with unrealized gains and losses included in net income. Held to maturity debt securities are those securities which the Company has the ability and intent to hold until maturity. Held to maturity debt securities are recorded at cost, adjusted for the amortization of premiums or accretion of discounts. Securities not included in trading or held to maturity are classified as available for sale debt securities. Available for sale debt securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale debt securities are included in accumulated other comprehensive income. Accrued interest is recorded within other assets and reversed against interest income if it is not received.

The Company utilizes third-party sources to value its investment securities; securities individually valued using quoted prices in active markets are classified as Level 1 assets in the fair value hierarchy, and securities valued using quoted prices in active markets for similar securities (commonly referred to as “matrix” pricing) are classified as Level 2 assets in the fair value hierarchy. The Company validates the reliability of third-party provided values by comparing individual security pricing for securities between more than one third-party source. When third-party information is not available, valuation adjustments are estimated in good faith by Management and classified as Level 3 in the fair value hierarchy.

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) and other regulatory guidance when performing investment security pre-purchase analysis or evaluating investment securities for credit loss. Credit ratings issued by recognized rating agencies are considered in the Company’s analysis only as a guide to the historical default rate associated with similarly-rated bonds.

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 share common risk characteristics with any of the pools of debt securities is individually evaluated and a reserve for credit losses is established at the difference between the discounted value of the expected future cash flows, based on the original effective interest rate, and the recorded amortized cost basis of the security. For certain classes of debt securities, the bank considers the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, the bank does not record expected credit losses.

- 10-

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 been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through other comprehensive income, net of applicable taxes. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally considered to not be related to credit when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell nor does it believe it will be required to sell the security before the recovery of its cost basis.

If the Company intends to sell a debt security or more likely than not will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged against the allowance for credit losses with any incremental loss reported in earnings.

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 publicly traded, such as Visa Class B common stock, and securities acquired to meet regulatory requirements, such as Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. When the review indicates that impairment exists the asset value is reduced to fair value. The Company recognizes the estimated loss in noninterest income.

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. Loans which are more than 90 days delinquent with respect to interest or principal, unless they are well secured and in the process of collection, and other loans on which full recovery of principal or interest is in doubt, are placed on nonaccrual status. Interest previously accrued on loans placed on nonaccrual status is charged against interest income. In addition, some loans secured by real estate and commercial loans to borrowers experiencing financial difficulties are placed on nonaccrual status even though the borrowers continue to repay the loans as scheduled. When the ability to fully collect nonaccrual loan principal is in doubt, payments received are applied against the principal balance of the loans on a cost-recovery method until such time as full collection of the remaining recorded balance is expected. Any additional interest payments received after that time are recorded as interest income on a cash basis. Nonaccrual loans are reinstated to accrual status when none of the loan’s principal and interest is past due and improvements in credit quality eliminate doubt as to the full collectability of both principal and interest, or the loan otherwise becomes well secured and in the process of collection. Certain consumer loans or auto receivables are charged off against the allowance for credit losses when they become 120 days past due.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually, including certain classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and “troubled debt restructured” loans. In general, a restructuring constitutes a troubled debt restructuring when the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower it would not otherwise consider. The Company follows its general nonaccrual policy for troubled debt restructurings. Performing troubled debt restructurings are reinstated to accrual status when improvements in credit quality eliminate the doubt as to full collectability of both principal and interest. Under the Coronavirus Aid, Relief, and Economic Security Act, banks may elect to deem that loan modifications do not result in TDRs if they are (1) related to the novel coronavirus disease; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. At March 31, 2020, the Company has not made any such modifications.

- 11-

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 reflected in the historical loss rates that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in past loan charge-off history, estimated losses based on management’s reasonable and supportable expectation of economic trends over a forecast horizon of up to two years, and other factors that impact credit loss expectations that are not reflected in the historical loss rates. Other factors include, but are not limited to, the effectiveness of the Company’s loan review system, adequacy of lending Management and staff, loan policies and procedures, problem loan trends, and concentrations of credit. At the end of the two-year forecast period loss rates revert immediately to the historical loss rates. The results of this analysis are applied to the amortized cost of the loans included within each pool.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually. The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and all “troubled debt restructured” loans individually for credit loss. A loan is considered ‘collateral-dependent’ when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. A credit loss reserve for collateral-dependent loans is established at the difference between the amortized cost basis in the loan and the fair value of the underlying collateral adjusted for costs to sell. For other individually evaluated loans that are not collateral dependent, a credit loss reserve is established at the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan’s effective interest rate.

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 unconditionally cancellable by the Company and applying the loss factors used in the allowance for credit loss methodology to estimate the liability for credit losses related to unfunded commitments. No credit loss estimate is reported for off-balance-sheet credit exposures that are unconditionally cancellable by the Company or for undrawn amounts under such arrangements that may be drawn prior to the cancellation of the arrangement.

- 12-

FASB ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, was issued August 2018. The ASU is part of the disclosure framework project, where the primary focus is to improve the effectiveness of disclosures in the financial statements. The ASU removes, modifies and adds disclosure requirements related to Fair Value Measurements.

The provisions of the ASU are effective January 1, 2020 with the option to early adopt any removed or modified disclosures upon issuance of the ASU. The Company early adopted the provisions to remove and/or modify relevant disclosures in the “Fair Value Measurements” note to the unaudited consolidated financial statements. The requirement to include additional disclosures was adopted by the Company January 1, 2020. The additional disclosures did not affect the financial results upon adoption.

Recently Issued Accounting Standards

FASB ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, was issued December 2019. The ASU is intended to simplify various aspects related to accounting for income taxes, eliminates certain exceptions to the general principles in ASC Topic 740 related to intra-period tax allocation, simplifies when companies recognize deferred taxes in an interim period, and clarifies certain aspects of the current guidance to promote consistent application. This guidance effective for public entities for fiscal years beginning after December 15, 2020, and for interim period within those fiscal years, with early adoption permitted. This guidance is applicable to the Company’s fiscal year beginning January 1, 2021. The Company is currently evaluating the potential effects of this guidance on its consolidated financial statements.

FASB ASU 2020-04, Reference Rate Reform (Topic 848): Simplifying the Accounting for Income Taxes, was issued March 2020. The ASU provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or remeasurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. ASU 2020-04 is effective March 12, 2020 through December 31, 2022. An entity may elect to apply ASU 2020-04 for contract modifications as of January 1, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The Company is currently evaluating the impacts of this ASU and has not yet determined whether LIBOR transition and this ASU will have material effects on our business operations and consolidated financial statements.

Note 3: Investment Securities

The market value of equity securities was $1,771 thousand at March 31, 2019. During the three months ended March 31, 2019, the Company recognized gross unrealized holding gains of $24 thousand in earnings. The Company had no equity securities at March 31, 2020 and December 31, 2019 due to the sales of such securities during the third quarter 2019.

During the quarter ended March 31, 2020, no allowance for credit loss was recorded. An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of cumulative other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, before allowance for credit losses of $16 thousand, follows:

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- 13-

	At March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	883,716	$	27,425	$	(7	)	$	911,134
Agency commercial MBS		3,674		-		(8	)		3,666
Securities of U.S. Government entities		521		-		-			521
Obligations of states and political subdivisions		153,914		3,137		(196	)		156,855
Corporate securities		2,112,100		25,527		(55,659	)		2,081,968
Collateralized Loan Obligations		56,522		50		(27	)		56,545
Total debt securities available for sale		3,210,447		56,139		(55,897	)		3,210,689
Debt securities held to maturity
Agency residential MBS		331,069		7,889		(77	)		338,881
Non-agency residential MBS		2,168		7		(76	)		2,099
Obligations of states and political subdivisions		348,600		6,282		(2	)		354,880
Total debt securities held to maturity		681,837		14,178		(155	)		695,860
Total	$	3,892,284	$	70,317	$	(56,052	)	$	3,906,549

	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 mortgage-backed securities (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

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The amortized cost and fair value of debt securities by contractual maturity are shown in the following tables at the dates indicated:

	At March 31, 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	$	250,816	$	250,551	$	53,960	$	54,148
Over 1 to 5 years		1,057,214		1,074,112		154,765		157,306
Over 5 to 10 years		984,078		939,245		139,875		143,426
Over 10 years		30,949		31,981		-		-
Subtotal		2,323,057		2,295,889		348,600		354,880
MBS		887,390		914,800		333,237		340,980
Total	$	3,210,447	$	3,210,689	$	681,837	$	695,860

	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 affect the yield on the carrying value of mortgage-related securities. At March 31, 2020 and December 31, 2019, the Company had no high-risk collateralized mortgage obligations as defined by regulatory guidelines.

An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows:

	Debt Securities Available for Sale
	At March 31, 2020
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		-	$	-	$	-			2	$	363	$	(7	)		2	$	363	$	(7	)
Agency commercial MBS		1		3,666		(8	)		-		-		-			1		3,666		(8	)
Obligations of states and political subdivisions		10		6,627		(66	)		7		4,072		(130	)		17		10,699		(196	)
Corporate securities		93		1,082,643		(54,857	)		8		37,419		(802	)		101		1,120,062		(55,659	)
CLO		1		9,973		(27	)		-		-		-			1		9,973		(27	)
Total		105	$	1,102,909	$	(54,958	)		17	$	41,854	$	(939	)		122	$	1,144,763	$	(55,897	)

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. The Company does not intend to sell any debt securities available for sale and has concluded that it is more likely than not that it will not be required to sell the debt securities prior to recovery of the amortized cost basis. Therefore, the Company does not consider these debt securities to have credit related loss as of March 31, 2020.

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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 occur in the future.

As of March 31, 2020 and December 31, 2019, the Company had debt securities pledged to secure public deposits and short-term borrowed funds of $745,596 thousand and $760,365 thousand, respectively.

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 $14.3 million at March 31, 2020, is rated below investment grade. The $14.3 million corporate bond was issued by a pharmaceutical company which develops, manufactures and markets generic and branded human pharmaceuticals, as well as active pharmaceutical ingredients, to customers worldwide. The bond matures in 2021, and the issuing Company has refinanced much of its debt obligations beyond the maturity date. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities.

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The following table presents the activity in the allowance for credit losses for debt securities held to maturity:

	For
	the Three Months
	Ended March 31,
	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 credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance.

The following table summarizes the amortized cost of debt securities held to maturity at March 31, 2020, aggregated by credit quality indicator:

	Credit Risk Profile by Credit Rating
	At March 31, 2020
	(In thousands)
	AAA/AA/A		BBB		BB/B		Total
Agency residential MBS	$	331,069	$	-	$	-	$	331,069
Non-agency residential MBS		1,120		-		1,048		2,168
Obligations of states and political subdivisions		348,498		102		-		348,600
Total	$	680,687	$	102	$	1,048	$	681,837

There were no debt securities held to maturity on nonaccrual status or past due 30 days or more as of March 31, 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
	Ended March 31,
	2020		2019
	(In thousands)
Taxable	$	21,964	$	18,633
Tax-exempt from regular federal income tax		3,362		4,315
Total interest income from investment securities	$	25,326	$	22,948

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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 March 31,		At December 31,
	2020		2019
	(In thousands)
Commercial	$	221,836	$	222,085
Commercial Real Estate		579,319		578,758
Construction		2,214		1,618
Residential Real Estate		29,924		32,748
Consumer Installment & Other		287,950		291,455
Total	$	1,121,243	$	1,126,664

The following summarizes activity in the allowance for loan losses/credit losses (loans):

	Allowance for Credit Losses (Loans)
	For the Three Months Ended March 31, 2020
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for credit losses (loans):
Balance at beginning of period, prior to adoption of ASU 2016-13	$	4,959		$	4,064	$	109		$	206		$	6,445		$	3,701		$	19,484
Impact of adopting ASU 2016-13		3,385			618		(31	)		(132	)		1,878			(3,701	)		2,017
Adjusted beginning balance		8,344			4,682		78			74			8,323			-			21,501
Provision (reversal)		27			59		29			(4	)		4,189			-			4,300
Chargeoffs		(178	)		-		-			-			(1,395	)		-			(1,573	)
Recoveries		143			12		-			-			421			-			576
Total allowance for credit losses (loans)	$	8,336		$	4,753	$	107		$	70		$	11,538		$	-		$	24,804

The significant increase in the allowance for credit losses for consumer installment and other loans was due to expected credit losses associated with forecasted unemployment.

	Allowance for Loan Losses
	For the Three Months Ended March 31, 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
Provision (reversal)		125			31		(612	)		(608	)		792			272		-
Chargeoffs		(23	)		-		-			-			(1,368	)		-		(1,391	)
Recoveries		93			12		-			-			412			-		517
Total allowance for loan losses	$	6,506		$	3,927	$	853		$	261		$	5,481		$	3,449	$	20,477

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 evaluate the borrowers’ financial condition. The Company’s subsidiary, Westamerica Bank (the “Bank”) maintains a Loan Review Department which reports directly to the Audit Committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans and validates management assigned credit risk grades on evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” Loan Review Department performs continuous evaluations throughout the year. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by management and validated by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations.

- 18-

The following summarizes the credit risk profile by internally assigned grade:

	Credit Risk Profile by Internally Assigned Grade
	At March 31, 2020
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	213,241	$	567,966	$	2,214	$	28,512	$	285,574	$	1,097,507
Substandard		8,595		11,353		-		1,412		1,749		23,109
Doubtful		-		-		-		-		325		325
Loss		-		-		-		-		302		302
Total	$	221,836	$	579,319	$	2,214	$	29,924	$	287,950	$	1,121,243

	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 March 31, 2020
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	221,263	$	215	$	235	$	-	$	123	$	221,836
Commercial real estate		574,045		1,438		-		-		3,836		579,319
Construction		2,214		-		-		-		-		2,214
Residential real estate		29,116		784		24		-		-		29,924
Consumer installment and other		284,383		2,108		888		178		393		287,950
Total	$	1,111,021	$	4,545	$	1,147	$	178	$	4,352	$	1,121,243

	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

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There was no allowance for credit losses allocated to loans on nonaccrual status as of March 31, 2020. There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at March 31, 2020 and 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
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, included $6,713 thousand of restructured loans, $3,670 thousand of which were on nonaccrual status.

	Impaired Loans
	For the Three Months Ended March 31,
	2019
	Average		Recognized
	Recorded		Interest
	Investment		Income
Commercial	$	9,848	$	167
Commercial real estate		6,893		147
Residential real estate		198		3
Consumer installment and other		132		-
Total	$	17,071	$	317

The following tables provide information on troubled debt restructurings (TDRs):

	Troubled Debt Restructurings
	At March 31, 2020
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		2	$	278	$	18	$	16
Commercial real estate		6		8,367		6,156		-
Residential real estate		1		241		188		-
Total		9	$	8,886	$	6,362	$	16

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- 20-

	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 months ended March 31, 2020, the Company did not modify any loans that were considered troubled debt restructurings including those under the Coronavirus Aid, Relief, and Economic Security Act. During the three months ended March 31, 2019, the Company did not modify any loans that were considered troubled debt restructurings. There were no chargeoffs related to troubled debt restructurings made during the three months ended March 31, 2020 and March 31, 2019. During the three months ended March 31, 2020 and 2019, no troubled debt restructured loans defaulted within 12 months of the modification date. A troubled debt restructuring is considered to be in default when payments are ninety days or more past due.

TDRs of $6,362 thousand included loans of $3,420 thousand on nonaccrual status at March 31, 2020. No allowance for credit losses was allocated to one commercial real estate loan secured by real property with a balance of $3,240 thousand, which was considered collateral-dependent at March 31, 2020. At March 31, 2020, $1,060 thousand of indirect consumer installment loans secured by personal property were past due 60 days or more and considered collateral-dependent and two residential real estate loans totaling $393 thousand secured by real property were considered collateral-dependent. There were no other collateral-dependent loans at March 31, 2020. A loan is considered collateral-dependent when the borrower is experiencing financial difficult and repayment is expected to be provided substantially through the operation or sale of the collateral.

Based on the most recent analysis performed, the risk category of loans by class of loans is as follows:

	At March 31, 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	$	25,425	$	7,244	$	28,594	$	13,493	$	23,572	$	48,590	$	4,423	$	151,341	$	61,900	$	213,241
Substandard		92		-		12		17		-		-		8,008		8,129		466		8,595
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	25,517	$	7,244	$	28,606	$	13,510	$	23,572	$	48,590	$	12,431	$	159,470	$	62,366	$	221,836

	At March 31, 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	$	115,511	$	53,588	$	51,776	$	126,831	$	98,166	$	98,997	$	23,097	$	567,966	$	-	$	567,966
Substandard		3,314		1,327		5,750		110		-		-		852		11,353		-		11,353
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	118,825	$	54,915	$	57,526	$	126,941	$	98,166	$	98,997	$	23,949	$	579,319	$	-	$	579,319

	At March 31, 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	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214
Substandard		-		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214

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	At March 31, 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	$	28,512	$	-	$	-	$	-	$	-	$	-	$	-	$	28,512	$	-	$	28,512
Substandard		1,412		-		-		-		-		-		-		1,412		-		1,412
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	29,924	$	-	$	-	$	-	$	-	$	-	$	-	$	29,924	$	-	$	29,924

The Company considers the delinquency and nonaccrual status of the consumer loan portfolio and its impact on the allowance for credit losses. The following table presents the amortized cost in consumer installment and other loans based on delinquency and nonaccrual status:

	At March 31, 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	$	7,333	$	10,129	$	26,298	$	30,001	$	62,513	$	81,490	$	30,103	$	247,867	$	36,516	$	284,383
30-59 days past due		57		225		270		329		543		541		42		2,007		101		2,108
60-89 days past due		26		107		108		148		301		196		-		886		2		888
Past due 90 days or more		7		8		23		17		76		43		-		174		4		178
Nonaccrual		-		-		-		-		-		-		-		-		393		393
Total	$	7,423	$	10,469	$	26,699	$	30,495	$	63,433	$	82,270	$	30,145	$	250,934	$	37,016	$	287,950

There were no loans held for sale at March 31, 2020 and December 31, 2019.

At March 31, 2020 and December 31, 2019, the Company held total other real estate owned (OREO) of $43 thousand. There was no reserve applied against OREO at March 31, 2020 and December 31, 2019. There were no foreclosed residential real estate properties at March 31, 2020 and December 31, 2019. The amount of consumer mortgage loans outstanding secured by residential real estate properties for which formal foreclosure proceedings were in process was $393 thousand at March 31, 2020 and $124 thousand at December 31, 2019.

Note 5: Concentration of Credit Risk

Under the California Financial Code, credit extended to any one person owing to a commercial bank at any one time shall not exceed the following limitations: (a) unsecured loans shall not exceed 15 percent of the sum of the shareholders' equity, allowance for credit losses (loans), capital notes, and debentures of the bank, or (b) secured and unsecured loans in all shall not exceed 25 percent of the sum of the shareholders' equity, allowance for credit losses (loans), capital notes, and debentures of the bank. At March 31, 2020, the Bank did not have credit extended to any one entity exceeding these limits. At March 31, 2020, the Bank had 31 lending relationships each with aggregate amounts of $5 million or more. The Company has significant credit arrangements that are secured by real estate collateral. In addition to real estate loans outstanding as disclosed in Note 4, the Company had loan commitments related to real estate loans of $41,106 thousand and $43,129 thousand at March 31, 2020 and December 31, 2019, respectively. The Company requires collateral on all real estate loans with loan-to-value ratios at origination generally no greater than 75% on commercial real estate loans and no greater than 80% on residential real estate loans. At March 31, 2020, the Bank held corporate bonds in 98 issuing entities that exceeded $5 million for each issuer.

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Note 6: Other Assets and Other Liabilities

Other assets consisted of the following:

	At March 31,		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		58,496		57,810
Net deferred tax asset		21,048		11,085
Right-of-use asset		17,246		17,136
Limited partnership investments		20,135		20,773
Interest receivable		28,998		28,797
Prepaid assets		4,237		3,737
Other assets		11,725		10,767
Total other assets	$	176,112	$	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.

The net deferred tax asset at March 31, 2020 of $21,048 thousand was net of deferred tax obligations of $72 thousand related to available for sale debt securities unrealized gains. The net deferred tax asset at December 31, 2019 of $11,085 thousand was net of deferred tax obligations of $10,934 thousand related to available for sale debt securities unrealized gains.

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, Visa Inc. announced a revised conversion rate applicable to its class B common stock resulting from its September 27, 2019 deposit of funds into its litigation escrow account. This funding reduced the conversion rate of class B common stock into class A common stock, which is unrestricted and trades actively on the New York Stock Exchange, from 1.6298 to 1.6228 per share, effective as of September 27, 2019. Visa Inc. class A common stock had a closing price of $161.12 per share on March 31, 2020, the last day of stock market trading for the first quarter 2020. The ultimate value of the Company’s Visa Inc. class B shares is subject to the extent of Visa Inc.’s future litigation escrow fundings, the resulting conversion rate to class A common stock, and current and future trading restrictions on the class B common stock.

The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At March 31, 2020, this investment totaled $20,135 thousand and $15,617 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At December 31, 2019, this investment totaled $20,773 thousand and $16,231 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At March 31, 2020, the $15,617 thousand of outstanding equity capital commitments are expected to be paid as follows, $4,394 thousand in the remainder of 2020, $4,071 thousand in 2021, $5,983 thousand in 2022, $295 thousand in 2023, $24 thousand in 2024, $302 thousand in 2025, $74 thousand in 2026 and $474 thousand in 2027 or thereafter.

The amounts recognized in net income for these investments include:

	For the Three Months Ended
	March 31,
	2020		2019
	(In thousands)
Investment loss included in pre-tax income	$	600	$	600
Tax credits recognized in provision for income taxes		225		266

- 23-

Other liabilities consisted of the following:

	At March 31,		At December 31,
	2020		2019
	(In thousands)
Operating lease liability	$	17,246	$	17,136
Other liabilities		53,244		27,453
Total other liabilities	$	70,490	$	44,589

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 5 years. Certain lease arrangements contain extension options, which can be exercised at the Company’s option, for one or more additional 5 year terms. Unexercised extension options are not considered reasonably certain of exercise and have not been included in the lease term used to determine the lease liability or right-of-use asset. The Company did not have any finance leases as of March 31, 2020.

As of March 31, 2020, the Company recorded a lease liability of $17,246 thousand and a right-of-use asset of $17,246 thousand, respectively. The weighted average remaining life of operating leases and weighted average discount rate used to determine operating lease liabilities were 3.9 years and 2.81%, respectively, at March 31, 2020. The Company did not have any material lease incentives, unamortized initial direct costs, prepaid lease expense, or accrued lease expense as of March 31, 2020.

Total lease costs during the three months ended March 31, 2020, of $1,659 thousand was recorded within occupancy and equipment expense. The Company did not have any material short-term or variable leases costs or sublease income during the three months ended March 31, 2020.

The following table summarizes the remaining lease payments of operating lease liabilities:

	Minimum future lease payments
	At March 31,
	2020
	(In thousands)
The remaining nine months of 2020	$	4,655
2021		4,645
2022		3,703
2023		2,980
2024		1,565
Thereafter		708
Total minimum lease payments		18,256
Less: discount		(1,010	)
Present value of lease liability	$	17,246

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- 24-

Note 7: Goodwill and Identifiable Intangible Assets

The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not amortized, but is evaluated for impairment at least annually. The Company did not recognize impairment during the three months ended March 31, 2020 and year ended December 31, 2019. Identifiable intangibles are amortized to their estimated residual values over their expected useful lives. Such lives and residual values are also periodically reassessed to determine if any amortization period adjustments are indicated. During the three months ended March 31, 2020 and year ended December 31, 2019 no such adjustments were recorded.

The carrying values of goodwill were:

	At March 31, 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 March 31, 2020					At December 31, 2019
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core deposit intangibles	$	56,808	$	(55,490	)	$	56,808	$	(55,417	)

As of March 31, 2020, the current period and estimated future amortization expense for identifiable intangible assets was:

	Total
	Core
	Deposit
	Intangibles
	(In thousands)
For the three months ended March 31, 2020 (actual)	$	73
Estimate for the remainder of year ending December 31, 2020		214
Estimate for year ending December 31, 2021		269
2022		252
2023		236
2024		222
2025		125

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- 25-

Note 8: Deposits and Borrowed Funds

The following table provides additional detail regarding deposits.

	Deposits
	At March 31,		At December 31,
	2020		2019
	(In thousands)
Noninterest-bearing	$	2,183,283	$	2,240,112
Interest-bearing:
Transaction		936,516		931,888
Savings		1,514,431		1,471,284
Time deposits less than $100 thousand		86,313		88,355
Time deposits $100 thousand through $250 thousand		53,335		54,874
Time deposits more than $250 thousand		25,548		26,108
Total deposits	$	4,799,426	$	4,812,621

Demand deposit overdrafts of $680 thousand and $1,055 thousand were included as loan balances at March 31, 2020 and December 31, 2019, respectively. Interest expense for aggregate time deposits with individual account balances in excess of $100 thousand was $79 thousand in the three months ended March 31, 2020 and $82 thousand in the three months ended March 31, 2019.

The following table provides additional detail regarding short-term borrowed funds.

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31,		At December 31,
	2020		2019
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	-	$	65,833
Agency residential MBS		91,839		52,485
Corporate securities		150,882		146,253
Total collateral carrying value	$	242,721	$	264,571
Total short-term borrowed funds	$	52,664	$	30,928

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 be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, loans individually evaluated for credit loss, certain loans held for investment, debt securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost or fair-value accounting of individual assets.

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 hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are:

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Level 1 – Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level 1 includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities.

Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 2 includes mutual funds, federal agency securities, mortgage-backed securities, corporate securities, asset-backed securities, and municipal bonds.

Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

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 pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote most closely reflecting the market generally used as the fair value estimate. In addition, the Company evaluates debt securities for credit loss on a quarterly basis. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates may not be realized in an actual sale of the securities.

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 or 3.

Assets Recorded at Fair Value on a Recurring Basis

The tables below present assets measured at fair value on a recurring basis on the dates indicated.

	At March 31, 2020
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (1)
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	911,134	$	-	$	911,134	$	-
Agency commercial MBS		3,666		-		3,666		-
Securities of U.S. Government entities		521		-		521		-
Obligations of states and political subdivisions		156,855		-		156,855		-
Corporate securities		2,081,968		-		2,081,968		-
Collateralized loan obligations (CLO)		56,545		-		56,545		-
Total debt securities available for sale	$	3,210,689	$	-	$	3,210,689	$	-

⁽¹⁾ There were no transfers in to or out of level 3 during the three months ended March 31, 2020.

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	At December 31, 2019
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (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		-
CLO		6,755		-		6,755		-
Total debt securities available for sale	$	3,078,846	$	20,000	$	3,058,846	$	-

⁽¹⁾ There were no transfers in to or out of level 3 during the twelve months ended December 31, 2019.

Assets Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower of cost or fair value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at March 31, 2020 and December 31, 2019, the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end.

									For the
									Three Months Ended
	At March 31, 2020								March 31, 2020
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	43	$	-	$	-	$	43	$	-
Loans:
Commercial		5,641		-		-		5,641		-
Commercial real estate		3,773		-		-		3,773		-
Residential real estate		188		-		-		188		-
Total assets measured at fair value on a nonrecurring basis	$	9,645	$	-	$	-	$	9,645	$	-

									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 – Valuation is based upon present value of expected future cash flows, independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less 10% for selling costs, generally. Level 3 includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and loans collateralized by real property and other business asset collateral individually evaluated for credit loss where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. The unobservable inputs and qualitative information about the unobservable inputs are not presented as the inputs were not developed by the Company.

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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 necessarily represent amounts which ultimately may be realized for assets or paid to settle liabilities. In addition, these values do not give effect to adjustments to fair value which may occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following tables are recorded in the balance sheet under the indicated captions.

The Company has not included assets and liabilities that are not financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company.

	At March 31, 2020
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	304,628	$	304,628	$	304,628	$	-	$	-
Debt securities held to maturity		681,821		695,844		-		695,844		-
Loans		1,096,439		1,198,584		-		-		1,198,584
Financial Liabilities:
Deposits	$	4,799,426	$	4,799,277	$	-	$	4,634,230	$	165,047
Short-term borrowed funds		52,664		52,664		-		52,664		-

	At December 31, 2019
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
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 premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

Note 10: Commitments and Contingent Liabilities

Loan commitments are agreements to lend to a customer provided there is no violation of any condition established in the agreement. Certain agreements provide the Company the right to cancel or reduce its obligations to lend to customers. The portion that is not cancellable unconditionally by the Company was $14,947 thousand at March 31, 2020. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $264,310 thousand at March 31, 2020 and $265,311 thousand at December 31, 2019. Standby letters of credit commit the Company to make payments on behalf of customers when certain specified future events occur. Standby letters of credit are primarily issued to support customers’ short-term financing requirements and must meet the Company’s normal credit policies and collateral requirements. Financial and performance standby letters of credit outstanding totaled $2,441 thousand at March 31, 2020 and $3,099 thousand at December 31, 2019. The Company had no commitments outstanding for commercial and similar letters of credit at March 31, 2020 and December 31, 2019. The Company had $580 thousand and $550 thousand in outstanding full recourse guarantees to a 3^rd party credit card company at March 31, 2020 and December 31, 2019, respectively. The Company had a reserve for unfunded commitments of $53 thousand at March 31, 2020 and $2,160 thousand at December 31, 2019, included in other liabilities.

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The Company determined that it will be obligated to provide refunds of revenue recognized in years prior to 2018 to some customers. The Company initially estimated the probable amount of these obligations to be $5,542 thousand and accrued a liability for such amount in 2017; based on additional information received in the second quarter 2019, the Company increased such liability to $5,843 thousand by recognizing an expense of $301 thousand.

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 expect such cases will have a material, adverse effect on its financial position or results of operations.

Note 11: 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 Ended
	March 31,
	2020		2019
	(In thousands, except per share data)
Net income (numerator)	$	16,962	$	19,646
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		27,068		26,841
Basic earnings per common share	$	0.63	$	0.73
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		27,068		26,841
Add common stock equivalents for options		71		71
Weighted average number of common shares outstanding - diluted (denominator)		27,139		26,912
Diluted earnings per common share	$	0.63	$	0.73

For the three months ended March 31, 2020 and 2019, options to purchase 514 thousand and 463 thousand shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect.

Note 12: Impact of COVID-19

The COVID-19 Coronavirus Pandemic Will Have an Uncertain Impact on the Company's Financial Condition and Results of Operations

The COVID-19 coronavirus pandemic caused escalating infections in the United States beginning in the first quarter of 2020 and may continue for some time. The spread of the outbreak has disrupted the United States economy and is likely to disrupt banking and other financial activity in the market areas in which the Company and its banking subsidiary, Westamerica Bank (the "Bank") do business.  Regions and states of the United States of America have implemented varying degrees of "stay at home" directives in an effort to prevent the spread of the virus. On March 19, 2020, the Governor of the State of California ordered all individuals living in the State of California to stay within their residence to prevent the spread of the novel coronavirus and many businesses have suspended or reduced business activities. The California "stay at home" directive excludes essential businesses, including banks, and the Bank remains open and fully operational. These "stay at home" directives have, however, significantly reduced economic activity in the United States and the State of California. California-based initial claims for unemployment have risen considerably since March of 2020.

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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 decline if, for example, the general economy deteriorates, inflation increases, credit ratings decline, the issuers’ financial condition deteriorates or the liquidity for debt securities declines.

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, the Federal Open Market Committee ("FOMC") reduced the target range for the federal funds rate to 0 to 0.25 percent; relatedly, the FOMC reduced the interest rate paid on required and excess reserve balances to 0.10 percent effective March 16, 2020, all of which may negatively impact net interest income. The Bank maintains required and excess reserve balances at the Federal Reserve Bank; the amount that earns interest is identified in the Company's financial statements as "interest-bearing cash".

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. The CARES Act will provide an estimated $2 trillion in fiscal stimulus to the United States economy.

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 income 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 or a combination of the factors identified above, or other factors, could materially adversely affect the Company's business, financial condition, results of operations and prospects.

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 quarter of 2020. The decline in oil prices could negatively affect the financial results of industrial sector-based and energy sector-based corporate issuers of corporate bonds owned by the Company.

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- 31-

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations 

WESTAMERICA BANCORPORATION

FINANCIAL SUMMARY

	For the Three Months Ended
	March 31,						December 31,
	2020			2019			2019
	(In thousands, except per share data)
Net Interest and Fee Income (FTE) (1)	$	40,547		$	40,247		$	40,481
Provision for Credit Losses		4,300			-			-
Noninterest Income		11,648			11,579			11,732
Noninterest Expense		24,664			25,183			24,209
Income Before Income Taxes (FTE) (1)		23,231			26,643			28,004
Provision for Income Taxes (FTE) (1)		6,269			6,997			7,276
Net Income	$	16,962		$	19,646		$	20,728
Average Common Shares Outstanding		27,068			26,841			27,050
Average Diluted Common Shares Outstanding		27,139			26,912			27,094
Common Shares Outstanding at Period End		26,932			26,901			27,062
Per Common Share:
Basic Earnings	$	0.63		$	0.73		$	0.77
Diluted Earnings		0.63			0.73			0.77
Book Value Per Common Share		26.20			24.41			27.03
Financial Ratios:
Return On Assets		1.21	%		1.42	%		1.46	%
Return On Common Equity		9.67	%		12.16	%		11.84	%
Net Interest Margin (FTE)(1)		3.10	%		3.12	%		3.08	%
Net Loan Losses to Average Loans		0.36	%		0.29	%		0.12	%
Efficiency Ratio(2)		47.3	%		48.6	%		46.4	%
Average Balances:
Assets	$	5,655,460		$	5,611,762		$	5,645,013
Loans		1,123,934			1,205,656			1,116,446
Investments		3,845,885			3,689,852			3,792,781
Deposits		4,828,988			4,834,690			4,839,552
Shareholders' Equity		705,330			655,380			694,709
Period End Balances:
Assets	$	5,628,126		$	5,555,961		$	5,619,555
Loans		1,121,243			1,204,844			1,126,664
Investments		3,892,526			3,627,201			3,816,918
Deposits		4,799,426			4,792,584			4,812,621
Shareholders' Equity		705,546			656,767			731,417
Capital Ratios at Period End:
Total Risk Based Capital		15.81	%		17.49	%		16.83	%
Tangible Equity to Tangible Assets		10.58	%		9.82	%		11.07	%
Dividends Paid Per Common Share	$	0.41		$	0.40		$	0.41
Common Dividend Payout Ratio		66	%		55	%		54	%

The above financial summary has been derived from the Company's unaudited consolidated financial statements. This information should be read in conjunction with those statements, notes and the other information included elsewhere herein. Percentages under the heading "Financial Ratios" are annualized with the exception of the efficiency ratio.

⁽¹⁾ Yields on securities and certain loans have been adjusted upward to an FTE basis in order to reflect the effect of income which is exempt from federal income taxation at the current statutory tax rate.

⁽²⁾ The efficiency ratio is defined as noninterest expense divided by total revenue (net interest income on an FTE basis and noninterest income).

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Financial Overview

Westamerica Bancorporation and subsidiaries’ (collectively, the “Company”) reported net income of $17.0 million or $0.63 diluted earnings per common share (“EPS”) for the first quarter 2020. First quarter 2020 results include a provision of credit losses of $4.3 million, which reduced EPS $0.11, representing Management’s estimate of additional reserves needed over the remaining life of its loans due to increased credit-risk form deteriorating economic conditions caused by the COVID-19 pandemic. These results compare to net income of $20.7 million or $0.77 EPS for the fourth quarter 2019 and net income of $19.6 million or $0.73 EPS for the first quarter 2019.

The COVID-19 coronavirus pandemic has caused escalating infections in the United States during the first quarter of 2020. Regions and states of the United States of America, including California have implemented varying degrees of “stay at home” directives in an effort to prevent the spread of the virus. These “stay at home” directives have significantly reduced economic activity in the United States and the State of California. The California “stay at home” directive excludes essential businesses including banks. The Company’s primary and wholly-owned subsidiary bank, Westamerica Bank (the “Bank”), remains open and fully operational.

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, the Federal Open Market Committee (“FOMC”) reduced the target range for the federal funds rate to 0 to 0.25 percent; relatedly, the FOMC reduced the interest rate paid on required and excess reserve balances to 0.10 percent effective March 16, 2020. The Bank maintains required and excess reserve balances at the Federal Reserve Bank; the amount that earns interest is identified in the Company’s financial statements as “interest-bearing cash”.

The extent of the spread of the coronavirus and its ultimate containment 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 income 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. Please refer to Part II, Item 1A “Risk factors” in this Form 10-Q.

The Company presents its net interest margin and net interest income on an FTE basis using the current statutory federal tax rate. Management believes the FTE basis is valuable to the reader because the Company’s loan and investment securities portfolios contain a relatively large portion of municipal loans and securities that are federally tax exempt. The Company’s tax exempt loans and securities composition may not be similar to that of other banks, therefore in order to reflect the impact of the federally tax exempt loans and securities on the net interest margin and net interest income for comparability with other banks, the Company presents its net interest margin and net interest income on an FTE basis.

The Company’s significant accounting policies (see Note 1, “Summary of Significant Accounting Policies,” to Financial Statements in the Company’s 2019 Form 10-K and Note 2 “Summary of Significant Accounting Policies” in this Form 10-Q) are fundamental to understanding the Company’s results of operations and financial condition. The Company adopted the following new accounting guidance:

FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, was issued on June 16, 2016. The ASU significantly changed estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB replaced the incurred loss model with the current expected credit loss (CECL) model, which accelerated recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale are recorded through an allowance for credit losses under the new standard. The Company is also required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company adopted the ASU provisions on January 1, 2020. Management evaluated available data, defined portfolio segments of loans with similar attributes, and selected loss estimate models for each identified loan portfolio segment. Management measured historical loss rates for each portfolio segment. Management also segmented debt securities held to maturity, selected methods to estimate losses for each segment, and measured a loss estimate. Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. The adjustment to the allowance for credit losses was recorded through an offsetting after-tax adjustment to shareholders’ equity. The implementing entry increased allowance for credit losses by $2,017 thousand, reduced allowance for unfunded credit commitments by $2,107 thousand and increased retained earnings by $52 thousand.

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FASB ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, was issued August 2018. The ASU is part of the disclosure framework project, where the primary focus is to improve the effectiveness of disclosures in the financial statements. The ASU removes, modifies and adds disclosure requirements related to Fair Value Measurements.

The provisions of the ASU are effective January 1, 2020 with the option to early adopt any removed or modified disclosures upon issuance of the ASU. The Company early adopted the provisions to remove and/or modify relevant disclosures in the “Fair Value Measurements” note to the unaudited consolidated financial statements. The requirement to include additional disclosures was adopted by the Company January 1, 2020. The additional disclosures did not affect the financial results upon adoption.

Net Income

Following is a summary of the components of net income for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2020			2019			2019
	(In thousands, except per share data)
Net interest and loan fee income (FTE)	$	40,547		$	40,247		$	40,481
Provision for loan losses		4,300			-			-
Noninterest income		11,648			11,579			11,732
Noninterest expense		24,664			25,183			24,209
Income before taxes (FTE)		23,231			26,643			28,004
Income tax provision (FTE)		6,269			6,997			7,276
Net income	$	16,962		$	19,646		$	20,728
Average diluted common shares		27,139			26,912			27,094
Diluted earnings per common share	$	0.63		$	0.73		$	0.77
Average total assets	$	5,655,460		$	5,611,762		$	5,645,013
Net income to average total assets (annualized)		1.21	%		1.42	%		1.46	%
Net income to average common shareholders' equity (annualized)		9.67	%		12.16	%		11.84	%

Net income for the first quarter 2020 was $2.7 million less than the first quarter 2019. First quarter 2020 results include a provision of credit losses of $4.3 million, which reduced EPS $0.11, representing Management estimate of additional reserves needed over the remaining life of its loans due to increased credit-risk form deteriorating economic conditions caused by the COVID-19 pandemic. Net interest and loan fee income (FTE) increased $300 thousand in the first quarter 2020 compared with the first quarter 2019 mainly due to a higher net yield on investment securities and higher average balances of those investment securities, offset by lower average balances of loans and a lower net yield on those loans and lower average balances of interest-bearing cash and its lower yield. First quarter 2020 noninterest income included a $603 thousand recovery on a previously charged off loan, which was offset by lower income from activity based fees due to reduced economic activity related to the COVID-19 pandemic. Noninterest expense decreased $519 thousand in the first quarter 2020 compared with the first quarter 2019 due to lower occupancy and equipment costs, professional fees, FDIC insurance assessments and amortization of intangible assets. The first quarter 2020 included a $246 thousand FDIC assessment credit; the Company’s credit is fully exhausted. The tax rate (FTE) for the first quarter 2020 was 27.0% compared with 26.3% for the first quarter 2019. The lower tax rate in the first quarter 2019 is due to higher tax deductions from the exercise of employee stock options.

Comparing the first quarter 2020 with the fourth quarter 2019 net income decreased $3.8 million. First quarter 2020 results include a provision of credit losses of $4.3 million as mentioned above. Net interest and loan fee (FTE) income increased $66 thousand due to a higher net yield on investment securities and higher average balances of those investment securities, offset by a lower net yield on loans and lower average balances of interest-bearing cash and its lower yield. In the first quarter 2020, noninterest income decreased $84 thousand compared with the fourth quarter 2020 due to lower income from activity based fees due to reduced economic activity related to the COVID-19 pandemic. The decrease in the first quarter 2020 was offset by a $603 thousand recovery on a previously charged off loan. In the first quarter 2020, noninterest expense increased $455 thousand compared with the fourth quarter 2020 primarily due to higher personnel costs offset in part by lower occupancy and equipment costs and professional fees. The effective tax rate (FTE) was 27.0% for the first quarter 2020 compared with 26.0% for the fourth quarter 2019 because the fourth quarter 2019 included a customary adjustment to true-up the Company’s 2018 estimated tax provision to the filed 2018 tax return.

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Net Interest and Loan Fee Income (FTE)                    

Following is a summary of the components of net interest and loan fee income (FTE) for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2020			2019			2019
	(In thousands)
Interest and loan fee income	$	39,991		$	39,483		$	39,878
Interest expense		442			494			451
FTE adjustment		998			1,258			1,054
Net interest and loan fee income (FTE)	$	40,547		$	40,247		$	40,481
Average earning assets	$	5,242,142		$	5,184,978		$	5,645,013
Net interest margin (FTE) (annualized)		3.10	%		3.12	%		3.08	%

Net interest and loan fee income (FTE) increased $300 thousand in the first quarter 2020 compared with the first quarter 2019 mainly due to a higher net yield on investment securities (up 0.12%) and higher average balances of those investment securities (up $156 million), offset by lower average balances of loans (down $82 million) and a lower net yield on those loans (down 0.03%) and lower average balances of interest-bearing cash (down $17 million) and its lower yield (down 1.16%).

Net interest and loan fee (FTE) income increased $66 thousand due to a higher net yield on investment securities (up 0.06%) and higher average balances of those investment securities (up $53 million), offset by a lower net yield on those loans (down 0.07%) and lower average balances of interest-bearing cash (down $62 million) and its lower yield (down 0.39%).

The annualized net interest margin (FTE) increased to 3.10% in the first quarter 2020 from 3.08% in the first quarter 2019 and decreased from 3.12% in the fourth quarter 2019.

The Company’s funding costs were 0.03% in the first quarter 2020 compared with 0.04% in the first quarter 2019 and 0.03% in the fourth quarter 2019. Average balances of time deposits in the first quarter 2020 declined $24 million from the first quarter 2019 and $5 million from the fourth quarter 2019. Average balances of checking and saving deposits accounted for 96.5% of average total deposits in first quarter 2020 compared with 96.0% in first quarter 2019 and 96.4% in the fourth quarter 2019.

Net Interest Margin (FTE)

The following summarizes the components of the Company's net interest margin (FTE) for the periods indicated (percentages are annualized.)

	For the Three Months Ended
	March 31,						December 31,
	2020			2019			2019
Yield on earning assets (FTE)		3.13	%		3.16	%		3.11	%
Rate paid on interest-bearing liabilities		0.07	%		0.08	%		0.07	%
Net interest spread (FTE)		3.06	%		3.08	%		3.04	%
Impact of noninterest-bearing funds		0.04	%		0.04	%		0.04	%
Net interest margin (FTE)		3.10	%		3.12	%		3.08	%

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Summary of Average Balances, Yields/Rates and Interest Differential

The following tables present information regarding the consolidated average assets, liabilities and shareholders’ equity, the amounts of interest income earned from average interest earning assets and the resulting yields, and the amounts of interest expense incurred on average interest-bearing liabilities and the resulting rates. Average loan balances include nonperforming loans. Interest income includes reversal of previously accrued interest on loans placed on non-accrual status during the period and proceeds from loans on nonaccrual status only to the extent cash payments have been received and applied as interest income and accretion of purchased loan discounts. Yields, rates and interest margins are annualized.

Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended March 31, 2020
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	3,329,935	$	21,964		2.64	%
Tax-exempt (1)		515,950		4,259		3.30	%
Total investments (1)		3,845,885		26,223		2.73	%
Loans:
Taxable		1,077,370		13,431		5.01	%
Tax-exempt (1)		46,564		479		4.14	%
Total loans (1)		1,123,934		13,910		4.98	%
Total interest-bearing cash		272,323		856		1.24	%
Total Interest-earning assets (1)		5,242,142		40,989		3.13	%
Other assets		413,318
Total assets	$	5,655,460
Liabilities and shareholders' equity
Noninterest-bearing demand	$	2,222,737	$	-		-	%
Savings and interest-bearing transaction		2,438,082		301		0.05	%
Time less than $100,000		94,320		54		0.23	%
Time $100,000 or more		73,849		79		0.43	%
Total interest-bearing deposits		2,606,251		434		0.07	%
Short-term borrowed funds		42,330		8		0.07	%
Total interest-bearing liabilities		2,648,581		442		0.07	%
Other liabilities		78,812
Shareholders' equity		705,330
Total liabilities and shareholders' equity	$	5,655,460
Net interest spread (1) (2)						3.06	%
Net interest and fee income and interest margin (1) (3)			$	40,547		3.10	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended March 31, 2019
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	3,009,046	$	18,633		2.48	%
Tax-exempt (1)		680,806		5,462		3.21	%
Total investments (1)		3,689,852		24,095		2.61	%
Loans:
Taxable		1,153,980		14,378		5.05	%
Tax-exempt (1)		51,676		530		4.16	%
Total loans (1)		1,205,656		14,908		5.01	%
Total interest-bearing cash		289,470		1,738		2.40	%
Total Interest-earning assets (1)		5,184,978		40,741		3.16	%
Other assets		426,784
Total assets	$	5,611,762
Liabilities and shareholders' equity
Noninterest-bearing demand	$	2,204,232	$	-		-	%
Savings and interest-bearing transaction		2,438,558		337		0.06	%
Time less than $100,000		109,104		66		0.24	%
Time $100,000 or more		82,796		82		0.40	%
Total interest-bearing deposits		2,630,458		485		0.07	%
Short-term borrowed funds		59,226		9		0.06	%
Total interest-bearing liabilities		2,689,684		494		0.08	%
Other liabilities		62,466
Shareholders' equity		655,380
Total liabilities and shareholders' equity	$	5,611,762
Net interest spread (1) (2)						3.08	%
Net interest and fee income and interest margin (1) (3)			$	40,247		3.12	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Distribution of Assets, Liabilities & Shareholders’ Equity and Yields, Rates & Interest Margin

	For the Three Months Ended December 31, 2019
			Interest
	Average		Income/		Yields/
	Balance		Expense		Rates
	($ in thousands)
Assets
Investment securities:
Taxable	$	3,241,554	$	20,808		2.57	%
Tax-exempt (1)		551,227		4,522		3.28	%
Total investments (1)		3,792,781		25,330		2.67	%
Loans:
Taxable		1,068,881		13,716		5.09	%
Tax-exempt (1)		47,565		490		4.09	%
Total loans (1)		1,116,446		14,206		5.05	%
Total interest-bearing cash		334,556		1,396		1.63	%
Total Interest-earning assets (1)		5,243,783		40,932		3.11	%
Other assets		401,230
Total assets	$	5,645,013
Liabilities and shareholders' equity
Noninterest-bearing demand	$	2,279,615	$	-		-	%
Savings and interest-bearing transaction		2,386,978		304		0.05	%
Time less than $100,000		97,645		60		0.24	%
Time $100,000 or more		75,314		80		0.42	%
Total interest-bearing deposits		2,559,937		444		0.07	%
Short-term borrowed funds		39,766		7		0.08	%
Total interest-bearing liabilities		2,599,703		451		0.07	%
Other liabilities		70,986
Shareholders' equity		694,709
Total liabilities and shareholders' equity	$	5,645,013
Net interest spread (1) (2)						3.04	%
Net interest and fee income and interest margin (1) (3)			$	40,481		3.08	%

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

⁽²⁾ Net interest spread represents the average yield earned on interest-earning assets less the average rate incurred on interest-bearing liabilities.

⁽³⁾ Net interest margin is computed by calculating the difference between interest income and expense, divided by the average balance of interest-earning assets. The net interest margin is greater than the net interest spread due to the benefit of noninterest-bearing demand deposits.

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Summary of Changes in Interest Income and Expense due to Changes in Average Asset & Liability Balances and Yields Earned & Rates Paid

The following tables set forth a summary of the changes in interest income and interest expense due to changes in average assets and liability balances (volume) and changes in average interest yields/rates for the periods indicated. Changes not solely attributable to volume or yields/rates have been allocated in proportion to the respective volume and yield/rate components.

Summary of Changes in Interest Income and Expense

	For the Three Months Ended March 31, 2020
	Compared with
	For the Three Months Ended March 31, 2019
	Volume			Yield/Rate			Total
	(In thousands)
Increase (decrease) in interest and loan fee income:
Investment securities:
Taxable	$	1,987		$	1,344		$	3,331
Tax-exempt (1)		(1,323	)		120			(1,203	)
Total investments (1)		664			1,464			2,128
Loans:
Taxable		(855	)		(92	)		(947	)
Tax-exempt (1)		(49	)		(2	)		(51	)
Total loans (1)		(904	)		(94	)		(998	)
Total interest-bearing cash		(103	)		(779	)		(882	)
Total (decrease) increase in interest and loan fee income (1)		(343	)		591			248
(Decrease) increase in interest expense:
Deposits:
Savings and interest-bearing transaction		-			(36	)		(36	)
Time less than $100,000		(9	)		(3	)		(12	)
Time $100,000 or more		(8	)		5			(3	)
Total interest-bearing deposits		(17	)		(34	)		(51	)
Short-term borrowed funds		(3	)		2			(1	)
Total decrease in interest expense		(20	)		(32	)		(52	)
(Decrease) increase in net interest and loan fee income (1)	$	(323	)	$	623		$	300

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate.

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Summary of Changes in Interest Income and Expense

	For the Three Months Ended March 31, 2020
	Compared with
	For the Three Months Ended December 31, 2019
	Volume			Yield/Rate			Total
	(In thousands)
Increase (decrease) in interest and loan fee income:
Investment securities:
Taxable	$	567		$	589		$	1,156
Tax-exempt (1)		(289	)		26			(263	)
Total investments (1)		278			615			893
Loans:
Taxable		45			(330	)		(285	)
Tax-exempt (1)		(14	)		3			(11	)
Total loans (1)		31			(327	)		(296	)
Total interest-bearing cash		(261	)		(279	)		(540	)
Total increase in interest and loan fee income (1)		48			9			57
Increase (decrease) in interest expense:
Deposits:
Savings and interest-bearing transaction		4			(7	)		(3	)
Time less than $100,000		(2	)		(4	)		(6	)
Time $100,000 or more		(2	)		1			(1	)
Total interest-bearing deposits		-			(10	)		(10	)
Short-term borrowed funds		-			1			1
Total decrease in interest expense		-			(9	)		(9	)
Increase in net interest and loan fee income (1)	$	48		$	18		$	66

⁽¹⁾ Amounts calculated on an FTE basis using the current statutory federal tax rate. 

Provision for Credit Losses

The Company manages credit costs by consistently enforcing conservative underwriting and administration procedures and aggressively pursuing collection efforts with debtors experiencing financial difficulties. The provision for credit losses reflects Management's assessment of credit risk in the loan portfolio and debt securities held to maturity during each of the periods presented.

First quarter 2020 results include a provision of credit losses of $4.3 million, representing Management estimate of additional reserves needed over the remaining life of its loans due to increased credit-risk from deteriorating economic conditions caused by the COVID-19 pandemic. The Company provided no provision for credit losses in the first and fourth quarters of 2019 based on Management’s evaluation of credit quality, the level of the provision for credit losses, and the adequacy of the allowance for credit losses. For further information regarding credit risk, net credit losses and the allowance for credit losses, see the “Loan Portfolio Credit Risk” and “Allowance for Credit Losses” sections of this Report.

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Noninterest Income

The following table summarizes the components of noninterest income for the periods indicated.

	For the Three Months Ended
	March 31,				December 31,
	2020		2019		2019
	(In thousands)
Service charges on deposit accounts	$	4,248	$	4,504	$	4,374
Merchant processing services		2,358		2,558		2,424
Debit card fees		1,468		1,507		1,568
Trust fees		777		717		764
ATM processing fees		579		633		696
Other service fees		506		577		513
Financial services commissions		125		101		122
Securities gains		-		24		167
Other noninterest income		1,587		958		1,104
Total	$	11,648	$	11,579	$	11,732

Noninterest income for the first quarter 2020 increased $69 thousand from the first quarter 2019. First quarter 2020 included a $603 thousand recovery on a previously charged off loan, which was offset by lower income from activity based fees due to reduced economic activity related to the COVID-19 pandemic.

In the first quarter 2020, noninterest income decreased $84 thousand compared with the fourth quarter 2019 due to lower income from activity based fees due to reduced economic activity related to the COVID-19 pandemic. The decrease was offset by a $603 thousand recovery on a previously charged off loan.

Noninterest Expense

The following table summarizes the components of noninterest expense for the periods indicated.

	For the Three Months Ended
	March 31,				December 31,
	2020		2019		2019
	(In thousands)
Salaries and related benefits	$	13,018	$	13,108	$	12,297
Occupancy and equipment		4,932		5,048		5,077
Outsourced data processing services		2,405		2,369		2,361
Courier service		491		442		529
Professional fees		389		665		674
Amortization of identifiable intangibles		73		310		73
Other noninterest expense		3,356		3,241		3,198
Total	$	24,664	$	25,183	$	24,209

Noninterest expense decreased $519 thousand in the first quarter 2020 compared with the first quarter 2019 due to lower occupancy and equipment costs, professional fees, FDIC insurance assessments and amortization of intangible assets. The first quarter 2020 included a $246 thousand FDIC assessment credit; the Company’s credit is fully exhausted.

In the first quarter 2020, noninterest expense increased $455 thousand compared with the fourth quarter 2019 primarily due to higher personnel costs, offset in part by lower occupancy and equipment costs and professional fees.

-41-

Provision for Income Tax

The Company’s income tax provision (FTE) was $6.3 million for the first quarter 2020 compared with $7.0 million for the first quarter 2019 and $7.3 million for the fourth quarter 2019, representing effective tax rates (FTE) of 27.0%, 26.3% and 26.0%, respectively. The lower tax rate for the fourth quarter 2019 is due to a customary adjustment to true-up the Company’s 2018 estimated tax provision to the filed 2018 tax return. The lower tax rate for the first quarter 2019 is due to higher tax deductions from the exercise of employee stock options.

Investment Securities Portfolio

The Company maintains an investment securities portfolio consisting of securities issued by U.S. Government sponsored entities, agency and non-agency mortgage backed securities, state and political subdivisions, corporations, collateralized loan obligations and other securities.

Management managed the investment securities portfolio in response to changes in deposit and loan volumes. The following table indicates the carrying values of investment securities in the Company’s portfolio by type as of the indicated dates.

	At March 31, 2020					At December 31, 2019
	($ in thousands)
	Carrying Value		As a percent of total investment securities			Carrying Value		As a percent of total investment securities
Agency mortgage-backed securities	$	1,245,869		32	%	$	1,297,395		34	%
Obligations of states and political subdivisions		505,455		13	%		544,920		15	%
Corporate securities		2,081,968		53	%		1,833,783		48	%
U.S. Treasuries and agencies		-		-	%		131,167		3	%
Other		59,234		2	%		9,653		-	%
Total	$	3,892,526		100	%	$	3,816,918		100	%
Debt securities available for sale	$	3,210,689				$	3,078,846
Debt securities held to maturity		681,837					738,072
Total	$	3,892,526				$	3,816,918

Management continually evaluates the Company’s investment securities portfolio in response to established asset/liability management objectives, changing market conditions that could affect profitability, liquidity, and the level of interest rate risk to which the Company is exposed. These evaluations may cause Management to change the level of funds the Company deploys into investment securities and change the composition of the Company’s investment securities portfolio.

At March 31, 2020, substantially all of the Company’s investment securities continue to be investment grade rated by one or more major rating agencies. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset-backed securities. The Company’s procedures for evaluating investments in securities are in accordance with 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) and other regulatory guidance. There have been no significant differences in the Company’s internal analyses compared with the ratings assigned by the third party credit rating agencies.

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The following table summarizes total corporate securities by the industry sector in which the issuing companies operate:

	At March 31, 2020					At December 31, 2019
	Market value		As a percent of total corporate securities			Market value		As a percent of total corporate securities
	($ in thousands)
Financial	$	930,412		45	%	$	772,852		42	%
Utilities		218,877		11	%		222,951		12	%
Consumer, Non-cyclical		179,033		9	%		185,784		10	%
Industrial		177,054		8	%		177,051		10	%
Communications		168,156		8	%		128,635		7	%
Basic Materials		120,809		6	%		76,434		4	%
Technology		112,137		5	%		107,632		6	%
Energy		87,965		4	%		86,883		5	%
Consumer, Cyclical		87,525		4	%		75,561		4	%
Total Corporate securities	$	2,081,968		100	%	$	1,833,783		100	%

The following table summarizes total consumer, cyclical by sub-sector:

	At March 31, 2020
	Market value
	($ in thousands)
Hotels	$	-
Restaurants		20,365
Department Stores		-
Casinos		-
Airlines		-
Other		67,160
Total Consumer, Cyclical	$	87,525

The Company’s $20.4 million in corporate bonds to issuers operating in the consumer cyclical – restaurant subsector represent bonds of one company which retails, roasts and provides its own brand of specialty coffee and other complimentary products through retail locations worldwide and sells coffee through several distribution channels. The bonds mature in 2023. At March 31, 2020, the bonds were rated BBB+.

The following table summarizes total corporate securities by credit rating:

	At March 31, 2020					At December 31, 2019
	Market value		As a percent of total corporate securities			Market value		As a percent of total corporate securities
	($ in thousands)
AAA	$	26,714		1	%	$	26,148		1	%
AA+		20,851		1	%		45,697		2	%
AA		40,611		2	%		19,776		1	%
AA-		46,327		2	%		46,099		3	%
A+		180,866		9	%		179,217		10	%
A		426,581		21	%		439,017		24	%
A-		396,936		19	%		351,909		19	%
BBB+		506,328		24	%		384,788		21	%
BBB		383,553		18	%		314,868		17	%
BBB-		38,873		2	%		11,737		1	%
Investment grade		2,067,640		99	%		1,819,256		99	%
BB		14,328		1	%		14,527		1	%
Total Corporate securities	$	2,081,968		100	%	$	1,833,783		100	%

-43-

The Company’s $14.3 million corporate bond rated BB represents a bond of one pharmaceutical company which develops, manufactures and markets generic and branded human pharmaceuticals, as well as active pharmaceutical ingredients, to customers worldwide. The bond matures in 2021; the issuing Company has refinanced much of its debt obligations beyond the maturity date.

The following tables summarize the total general obligation and revenue bonds issued by states and political subdivisions held in the Company’s investment securities portfolios as of the dates indicated, identifying the state in which the issuing government municipality or agency operates.

At March 31, 2020, the Company’s investment securities portfolios included securities issued by 420 state and local government municipalities and agencies located within 42 states. The largest exposure to any one municipality or agency was $9.0 million (fair value) represented by one general obligation bond.

	At March 31, 2020
	Amortized		Fair
	Cost		Value
	(In thousands)
Obligations of states and political subdivisions:
General obligation bonds:
California	$	83,694	$	85,519
New Jersey		27,601		27,874
Texas		24,718		25,100
Washington		23,800		24,393
Other (34 states)		196,908		200,731
Total general obligation bonds	$	356,721	$	363,617
Revenue bonds:
California	$	30,757	$	30,984
Colorado		12,161		12,417
Kentucky		11,819		12,065
Washington		11,194		11,421
Indiana		9,376		9,552
Virginia		8,020		8,321
Other (25 states)		62,466		63,358
Total revenue bonds	$	145,793	$	148,118
Total obligations of states and political subdivisions	$	502,514	$	511,735

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-44-

At December 31, 2019, the Company’s investment securities portfolios included securities issued by 451 state and local government municipalities and agencies located within 42 states. The largest exposure to any one municipality or agency was $9.0 million (fair value) represented by one general obligation bond.

	At December 31, 2019
	Amortized		Fair
	Cost		Value
	(In thousands)
Obligations of states and political subdivisions:
General obligation bonds:
California	$	83,984	$	86,527
Texas		36,396		36,815
New Jersey		29,347		29,688
Washington		23,862		24,516
Minnesota		20,624		20,871
Other (33 states)		189,286		193,302
Total general obligation bonds	$	383,499	$	391,719
Revenue bonds:
California	$	31,829	$	32,278
Kentucky		16,384		16,680
Colorado		12,176		12,479
Washington		11,208		11,509
Indiana		9,935		10,145
Virginia		8,027		8,328
Arizona		7,912		8,106
Other (25 states)		60,338		61,347
Total revenue bonds	$	157,809	$	160,872
Total obligations of states and political subdivisions	$	541,308	$	552,591

At March 31, 2020 and December 31, 2018, the revenue bonds in the Company’s investment securities portfolios were issued by state and local government municipalities and agencies to fund public services such as water utility, sewer utility, recreational and school facilities, and general public and economic improvements. The revenue bonds were payable from 20 revenue sources at March 31, 2020 and at December 31, 2019. The revenue sources that represent 5% or more individually of the total revenue bonds are summarized in the following tables.

	At March 31, 2020
	Amortized		Fair
	Cost		Value
	(In thousands)
Revenue bonds by revenue source:
Water	$	35,119	$	35,655
Sewer		17,614		18,053
Sales tax		15,006		15,325
Lease (renewal)		12,440		12,670
Lease (abatement)		10,352		10,550
Other (15 sources)		55,262		55,865
Total revenue bonds by revenue source	$	145,793	$	148,118

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	At December 31, 2019
	Amortized		Fair
	Cost		Value
	(In thousands)
Revenue bonds by revenue source:
Water	$	36,960	$	37,699
Sewer		19,039		19,545
Sales tax		15,695		16,101
Lease (renewal)		15,230		15,539
Lease (abatement)		10,913		11,160
Other (15 sources)		59,972		60,828
Total revenue bonds by revenue source	$	157,809	$	160,872

See Note 3 to the unaudited consolidated financial statements for additional information related to the investment securities.

Loan Portfolio Credit Risk

The Company extends loans to commercial and consumer customers which 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 Bank has been processing customer Paycheck Protection Program loan (“PPP loan”) applications as established by the Coronavirus Aid, Relief, and Economic Security Act. The United States Small Business Administration guarantees PPP loans; given this guarantee, the PPP loans are not considered to have default risk. The Company has not funded such loans as of March 31, 2020.

The preparation of the financial statements requires Management to estimate the amount of expected losses in the loan portfolio and establish an allowance for credit losses. The allowance for credit losses is maintained by assessing or reversing a provision for loan losses through the Company’s earnings. In estimating credit losses, Management must exercise judgment in evaluating information deemed relevant, such as financial information regarding individual borrowers, overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions and other information. 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 Company closely monitors the markets in which it conducts its lending operations and follows a strategy to control exposure to loans with high credit risk. The Bank’s organization structure separates the functions of business development and loan underwriting; Management believes this segregation of duties avoids inherent conflicts of combining business development and loan approval functions. In measuring and managing credit risk, the Company adheres to the following practices.

● The Bank maintains a Loan Review Department which reports directly to the audit committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans to challenge the credit risk grades assigned by Management using grading standards employed by bank regulatory agencies. Those loans judged to carry higher risk attributes are referred to as “classified loans.” Classified loans receive elevated Management attention to maximize collection.

● The Bank maintains two loan administration offices whose sole responsibility is to manage and collect classified loans.

-46-

Classified loans with higher levels of credit risk are further designated as “nonaccrual loans.” Management places classified loans on nonaccrual status when full collection of contractual interest and principal payments is in doubt. Uncollected interest previously accrued on loans placed on nonaccrual status is reversed as a charge against interest income. The Company does not accrue interest income on loans following placement on nonaccrual status. Interest payments received on nonaccrual loans are applied to reduce the carrying amount of the loan unless the carrying amount is well secured by loan collateral. “Nonperforming assets” include nonaccrual loans, loans 90 or more days past due and still accruing, and repossessed loan collateral (commonly referred to as “Other Real Estate Owned”).

Nonperforming Assets

	At March 31,				At December 31,
	2020		2019		2019
	(In thousands)
Nonperforming nonaccrual loans	$	419	$	330	$	659
Performing nonaccrual loans		3,933		3,670		3,781
Total nonaccrual loans		4,352		4,000		4,440
Accruing loans 90 or more days past due		178		394		440
Total nonperforming loans		4,530		4,394		4,880
Other real estate owned		43		43		43
Total nonperforming assets	$	4,573	$	4,437	$	4,923

At March 31, 2020, one loan secured by commercial real estate with a balance of $3.4 million was on nonaccrual status. The remaining six nonaccrual loans held at March 31, 2020 had an average carrying value of $155 thousand.

Management believes the overall credit quality of the loan portfolio is reasonably stable; however, classified and nonperforming assets could fluctuate from period to period. The performance of any individual loan can be affected by external factors such as the interest rate environment, economic conditions, pandemics, and collateral values or factors particular to the borrower. No assurance can be given that additional increases in nonaccrual and delinquent loans will not occur in the future.

Allowance for Credit Losses

Effective January 1, 2020, the Company adopted Accounting Standards Update (ASU) 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments (“CECL”). The following table summarizes allowance for credit losses at the dates indicated:

	At March 31,				At December 31,
	2020		2019		2019
	(In thousands)
Allowance for Credit Losses (Loans)	$	24,804	$	20,477	$	19,484
Allowance for Credit Losses (Held to Maturity Debt Securities)		16		-		-
Total Allowance for Credit Losses	$	24,820	$	20,477	$	19,484

Allowance for Credit Losses (Debt Securities Held to Maturity)

Management segmented debt securities held to maturity, selected methods to estimate losses for each segment, and measured a loss estimate. Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. The adoption of the ASU resulted in establishment of allowance for credit losses related to debt securities held to maturity of $16 thousand.

Allowance for Credit Losses (Loans)

The Company’s allowance for credit losses (loans) represents Management’s estimate of loan losses inherent in the loan portfolio based on the current expected credit loss (CECL) model. In evaluating credit risk for loans, Management measures loss potential of the carrying value of loans. As described above, payments received on nonaccrual loans may be applied against the principal balance of the loans until such time as full collection of the remaining recorded balance is expected.

-47-

The following table summarizes the allowance for loan losses/credit losses (loans), chargeoffs and recoveries for the periods indicated:

	For the Three Months Ended
	March 31,						December 31,
	2020			2019			2019
	(In thousands)
Analysis of the Allowance for Loan Losses/Credit Losses
Balance, end of prior period	$	19,484		$	21,351		$	19,828
Adoption of ASU 2016-13		2,017			-			-
Balance, beginning of period		21,501			21,351			19,828
Provision for credit losses		4,300			-			-
Loans charged off:
Commercial		(178	)		(23	)		(26	)
Consumer installment and other		(1,395	)		(1,368	)		(1,141	)
Total chargeoffs		(1,573	)		(1,391	)		(1,167	)
Recoveries of loans previously charged off:
Commercial		143			93			319
Commercial real estate		12			12			158
Consumer installment and other		421			412			346
Total recoveries		576			517			823
Net loan losses		(997	)		(874	)		(344	)
Balance, end of period	$	24,804		$	20,477		$	19,484
Net loan losses as a percentage of average total loans (annualized)		0.36	%		0.29	%		0.12	%
Allowance for unfunded credit commitments		53			2,308			2,160

The Company's allowance for credit losses (loans) is maintained at a level considered appropriate to provide for losses that can be estimated based upon specific and general conditions. These include conditions unique to individual borrowers, as well as overall loan loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing and expected economic conditions and other factors. The Company evaluates all loans with outstanding principal balances in excess of $500 thousand that are classified or on nonaccrual status and all “troubled debt restructured” loans individually for credit loss. The remainder of the loan portfolio is collectively evaluated for credit loss based in part on quantitative analyses of historical loan loss experience of loan portfolio segments to determine standard loss rates for each segment, which is adjusted for current conditions, reasonable and supportable forecasts, and other factors. The loss rates are applied to segmented loan balances to allocate the allowance to the segments of the loan portfolio.

	Allowance for Credit Losses (Loans)
	For the Three Months Ended March 31, 2020
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for credit losses (loans):
Balance at beginning of period, prior to adoption of ASU 2016-13	$	4,959		$	4,064	$	109		$	206		$	6,445		$	3,701		$	19,484
Impact of adopting ASU 2016-13		3,385			618		(31	)		(132	)		1,878			(3,701	)		2,017
Adjusted beginning balance		8,344			4,682		78			74			8,323			-			21,501
Provision (reversal)		27			59		29			(4	)		4,189			-			4,300
Chargeoffs		(178	)		-		-			-			(1,395	)		-			(1,573	)
Recoveries		143			12		-			-			421			-			576
Total allowance for credit losses (loans)	$	8,336		$	4,753	$	107		$	70		$	11,538		$	-		$	24,804

Management considers the $24.8 million allowance for credit losses (loans) to be adequate as a reserve against probable incurred loan losses in the loan portfolio as of March 31, 2020.

See Note 4 to the unaudited consolidated financial statements for additional information related to the loan portfolio, loan portfolio credit risk, allowance for credit losses (loans) and other real estate owned.

-48-

Asset/Liability and Market Risk Management

Asset/liability management involves the evaluation, monitoring and management of interest rate risk, market risk, liquidity and funding. The fundamental objective of the Company's management of assets and liabilities is to maximize its economic value while maintaining adequate liquidity and a conservative level of interest rate risk.

Interest Rate Risk

Interest rate risk is a significant market risk affecting the Company. Many factors affect the Company’s exposure to interest rates, such as general economic and financial conditions, customer preferences, historical pricing relationships, and re-pricing characteristics of financial instruments. Financial instruments may mature or re-price at different times. Financial instruments may re-price at the same time but by different amounts. Short-term and long-term market interest rates may change by different amounts. The timing and amount of cash flows of various financial instruments may change as interest rates change. In addition, the changing levels of interest rates may have an impact on loan demand and demand for various deposit products.

The Company’s earnings are affected not only by general economic conditions, but also by the monetary and fiscal policies of the United States government and its agencies, particularly the FOMC. The monetary policies of the FOMC can influence the overall growth of loans, investment securities, and deposits and the level of interest rates earned on loans and investment securities and paid for deposits and other borrowings. The nature and impact of future changes in monetary policies are generally not predictable.

Management attempts to manage interest rate risk while enhancing the net interest margin and net interest income. At times, depending on expected increases or decreases in market interest rates, the relationship between long and short-term interest rates, market conditions and competitive factors, Management may adjust the Company's interest rate risk position. The Company's results of operations and net portfolio values remain subject to changes in interest rates and to fluctuations in the difference between long and short-term interest rates.

Management monitors the Company’s interest rate risk using a purchased simulation model, which is periodically validated using supervisory guidance issued by the Board of Governors of the Federal Reserve System, SR 11-7 “Guidance on Model Risk Management.” Management measures its exposure to interest rate risk using both a static and dynamic composition of financial instruments. Within the static composition simulation, cash flows are assumed redeployed into like financial instruments at prevailing rates and yields. Within the dynamic composition simulation, Management makes assumptions regarding the expected change in the volume of financial instruments given the assumed change in market interest rates. Both simulations are used to measure expected changes in net interest income assuming various levels of change in market interest rates.

The Company’s asset and liability position was slightly “asset sensitive” at March 31, 2020, depending on the interest rate assumptions applied to each simulation model. An “asset sensitive” position results in a slightly larger change in interest income than in interest expense resulting from application of assumed interest rate changes.

At March 31, 2020, Management’s most recent measurements of estimated changes in net interest income were:

Static Simulation (balance sheet composition unchanged):
Assumed Immediate Parallel Shift in Interest Rates	-1.00	%	0.00	%	+1.00	%
First Year Change in Net Interest Income	-8.00	%	0.00	%	+4.80	%
Dynamic Simulation (balance sheet composition changes):
Assumed Change in Interest Rates Over 1 Year	-1.00	%	0.00	%	+1.00	%
First Year Change in Net Interest Income	-4.00	%	0.00	%	+1.60	%

Simulation estimates depend on, and will change with, the size and mix of the actual and projected composition of financial instruments at the time of each simulation.

The Company does not currently engage in trading activities or use derivative instruments to manage interest rate risk, even though such activities may be permitted with the approval of the Company's Board of Directors.

-49-

Market Risk - Equity Markets

Equity price risk can affect the Company. Preferred or common stock holdings, as permitted by banking regulations, can fluctuate in value. Changes in value of preferred or common stock holdings are recognized in the Company's income statement.

Fluctuations in the Company's common stock price can impact the Company's financial results in several ways. First, the Company has at times repurchased and retired its common stock; the market price paid to retire the Company's common stock affects the level of the Company's shareholders' equity, cash flows and shares outstanding. Second, the Company's common stock price impacts the number of dilutive equivalent shares used to compute diluted earnings per share. Third, fluctuations in the Company's common stock price can motivate holders of options to purchase Company common stock through the exercise of such options thereby increasing the number of shares outstanding and potentially adding volatility to the book tax provision. Finally, the amount of compensation expense and tax deductions associated with share based compensation fluctuates with changes in and the volatility of the Company's common stock price.

Market Risk - Other

Market values of loan collateral can directly impact the level of loan chargeoffs and the provision for credit losses. The financial condition and liquidity of debtors issuing bonds and debtors whose mortgages or other obligations are securitized can directly impact the credit quality of the Company’s investment securities portfolio requiring the Company to establish or increase reserves for credit losses. Other types of market risk, such as foreign currency exchange risk, are not significant in the normal course of the Company's business activities.

Liquidity and Funding

The objective of liquidity management is to manage cash flow and liquidity reserves so that they are adequate to fund the Company's operations and meet obligations and other commitments on a timely basis and at a reasonable cost. The Company achieves this objective through the selection of asset and liability maturity mixes that it believes best meet its needs. The Company's liquidity position is enhanced by its ability to raise additional funds as needed in the wholesale markets.

In recent years, the Company's deposit base has provided the majority of the Company's funding requirements. This relatively stable and low-cost source of funds, along with shareholders' equity, provided 98% of funding for average total assets in the three months ended March 31, 2020 and the twelve months ended December 31, 2019. The stability of the Company’s funding from customer deposits is in part reliant on the confidence clients have in the Company. The Company places a very high priority in maintaining this confidence through conservative credit and capital management practices and by maintaining an appropriate level of liquidity.

Liquidity is further provided by assets such as balances held at the Federal Reserve Bank, investment securities, and amortizing loans. The Company's investment securities portfolio provides a substantial secondary source of liquidity. The Company held $3.9 billion in total investment securities at March 31, 2020. Under certain deposit, borrowing and other arrangements, the Company must hold and pledge investment securities as collateral. At March 31, 2020, such collateral requirements totaled approximately $746 million.

The Bank has been processing customer PPP loan applications. The Federal Reserve Bank established the Paycheck Protection Program Liquidity Facility (“PPPLF”) to provide funding for eligible firms extending PPP loans. The Bank intends to fund customer PPP loans with available excess cash balances and, if needed, by PPPLF borrowings. The volume of PPP loans ultimately approved and funded by the Bank is uncertain given strong demand across the country for PPP loans and the aggregate limits of government funding for the Paycheck Protection Program. The ultimate amount PPPLF borrowing by the Bank, if any, is uncertain given ultimate PPP loan volumes is uncertain. Under the PPPLF, the Bank must pledge PPP loans as collateral for PPPLF borrowings. Principal reductions on the pledged PPP loans must immediately result in principal reduction of the PPPLF borrowing.

Liquidity risk can result from the mismatching of asset and liability cash flows, or from disruptions in the financial markets. The Company performs liquidity stress tests on a periodic basis to evaluate the sustainability of its liquidity. Under the stress testing, the Company assumes outflows of funds increase beyond expected levels. Measurement of such heightened outflows considers the composition of the Company’s deposit base, including any concentration of deposits, non-deposit funding such as short-term borrowings, and unfunded lending commitments. The Company evaluates its stock of highly liquid assets to meet the assumed higher levels of outflows. Highly liquid assets include cash and amounts due from other banks from daily transaction settlements, reduced by branch cash needs and Federal Reserve Bank reserve requirements, and investment securities based on regulatory risk-weighting guidelines. Based on the results of the most recent liquidity stress test, Management is satisfied with the liquidity condition of the Bank and the Company. However, no assurance can be given the Bank or Company will not experience a period of reduced liquidity.

-50-

Management continually monitors the Company’s cash levels. Loan demand from credit worthy borrowers will be dictated by economic and competitive conditions. The Company aggressively solicits non-interest bearing demand deposits and money market checking deposits, which are the least sensitive to changes in interest rates. The growth of these deposit balances is subject to heightened competition, the success of the Company's sales efforts, delivery of superior customer service, new regulations and market conditions. The Company does not aggressively solicit higher-costing time deposits. Changes in interest rates, most notably rising interest rates, could impact deposit volumes. Depending on economic conditions, interest rate levels, liquidity management and a variety of other conditions, deposit growth may be used to fund loans or purchase investment securities. However, due to possible volatility in economic conditions, competition and political uncertainty, loan demand and levels of customer deposits are not certain. Shareholder dividends are expected to continue subject to the Board's discretion and continuing evaluation of capital levels, earnings, asset quality and other factors.

Westamerica Bancorporation ("Parent Company") is a separate entity apart from the Bank and must provide for its own liquidity. In addition to its operating expenses, the Parent Company is responsible for the payment of dividends declared for its shareholders, and interest and principal on any outstanding debt. The Parent Company currently has no debt. Substantially all of the Parent Company's revenues are obtained from subsidiary dividends and service fees.

The Bank’s dividends paid to the Parent Company, proceeds from the exercise of stock options, and Parent Company cash balances provided adequate cash for the Parent Company to pay shareholder dividends of $11 million and $44 million in the three months ended March 31, 2020 and the twelve months ended December 31, 2019, respectively, and retire common stock in the amount of $9.2 million and $488 thousand, respectively. Payment of dividends to the Parent Company by the Bank is limited under California and Federal laws. The Company believes these regulatory dividend restrictions will not have an impact on the Parent Company's ability to meet its ongoing cash obligations.

Capital Resources

The Company has historically generated high levels of earnings, which provide a means of accumulating capital. The Company's net income as a percentage of average shareholders' equity (“return on equity” or “ROE”) has been 9.7% in the three months ended March 31, 2020 and 11.9% in the year ended December 31, 2019. The Company also raises capital as employees exercise stock options. Capital raised through the exercise of stock options was $2.3 million in the three months ended March 31, 2020 and $14 million in the year ended December 31, 2019.

The Company paid common dividends totaling $11 million in the three months ended March 31, 2020 and $44 million in the year ended December 31, 2019, which represent dividends per common share of $0.41 and $1.63, respectively. The Company's earnings have historically exceeded dividends paid to shareholders. The amount of earnings in excess of dividends provides the Company resources to finance growth and maintain appropriate levels of shareholders' equity. In the absence of profitable growth opportunities, the Company has at times repurchased and retired its common stock as another means to return earnings to shareholders. The Company repurchased and retired 180 thousand shares valued at 9.2 million in the three months ended March 31, 2020 and 8 thousand shares valued at $488 thousand in the year ended December 31, 2019.

The Company's primary capital resource is shareholders' equity, which was $706 million at March 31, 2020 compared with $731 million at December 31, 2019. The Company's ratio of equity to total assets was 12.5% at March 31, 2020 and 13.0% at December 31, 2019.

The Company performs capital stress tests on a periodic basis to evaluate the sustainability of its capital. Under the stress testing, the Company assumes various scenarios such as deteriorating economic and operating conditions, unanticipated asset devaluations, and significant operational lapses. The Company measures the impact of these scenarios on its earnings and capital. Based on the results of the most recent stress tests, Management is satisfied with the capital condition of the Bank and the Company. However, no assurance can be given the Bank or Company will not experience a period of reduced earnings or a reduction in capital from unanticipated events and circumstances.

-51-

Capital to Risk-Adjusted Assets

The capital ratios for the Company and the Bank under current regulatory capital standards are presented in the tables below, on the dates indicated.

										To Be
										Well-capitalized
							Required for			Under Prompt
	At March 31, 2020						Capital Adequacy			Corrective Action
	Company			Bank			Purposes			Regulations (Bank)
Common Equity Tier I Capital		15.16	%		11.47	%		7.00	%		6.50	%
Tier I Capital		15.16	%		11.47	%		8.50	%		8.00	%
Total Capital		15.81	%		12.28	%		10.50	%		10.00	%
Leverage Ratio		10.48	%		7.90	%		4.00	%		5.00	%

										To Be
										Well-capitalized
							Required for			Under Prompt
	At December 31, 2019						Capital Adequacy			Corrective Action
	Company			Bank			Purposes			Regulations (Bank)
Common Equity Tier I Capital		16.22	%		11.80	%		7.00	%		6.50	%
Tier I Capital		16.22	%		11.80	%		8.50	%		8.00	%
Total Capital		16.83	%		12.58	%		10.50	%		10.00	%
Leverage Ratio		10.50	%		7.60	%		4.00	%		5.00	%

In June 2016, the Financial Accounting Standards Board issued an update to the accounting standards for credit losses known as the "Current Expected Credit Losses" (CECL) methodology, which replaces the existing incurred loss methodology for certain financial assets. The Company adopted the CECL methodology effective January 1, 2020, which involved an implementing accounting entry to retained earnings on a net-of-tax basis. The adoption of the CECL methodology did not have a material adverse day-one impact to capital ratios and the Company did not adopt the phase in regulatory capital relief. See Note 2 to unaudited consolidated financial statements, “Recently Adopted Accounting Standards” for more information on the CECL methodology.

PPP loans are zero percent risk weighted for regulatory capital purposes; any growth in PPP loans will not affect regulatory capital ratios, other than potential effect on the Leverage ratio. To the extent funding of PPP loans is through excess cash balances or PPPLF borrowings, the Leverage ratio will be unaffected. However, PPP loans funded by increased non-PPPLF borrowings would reduce the leverage ratio.

The Company and the Bank routinely project capital levels by analyzing forecasted earnings, credit quality, shareholder dividends, asset volumes, share repurchase activity, stock option exercise proceeds, and other factors. Based on current capital projections, the Company and the Bank expect to maintain regulatory capital levels in excess of the minimum required to be considered well-capitalized under the prompt corrective action framework while continuing to pay quarterly dividends to shareholders. No assurance can be given that changes in capital management plans will not occur.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

The Company does not currently engage in trading activities or use derivative instruments to control interest rate risk, even though such activities may be permitted with the approval of the Company’s Board of Directors.

Credit risk and interest rate risk are the most significant market risks affecting the Company, and equity price risk can also affect the Company’s financial results. These risks are described in the preceding sections regarding “Loan Portfolio Credit Risk,” and “Asset/Liability and Market Risk Management.” Other types of market risk, such as foreign currency exchange risk and commodity price risk, are not significant in the normal course of the Company’s business activities.

-52-

Item 4. Controls and Procedures

The Company’s principal executive officer and principal financial officer have evaluated the effectiveness of the Company’s “disclosure controls and procedures,” as such term is defined in Rule 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended, as of March 31, 2020.

Based upon their evaluation, the principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures are effective to ensure that material information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported as and when required and that such information is communicated to the Company’s management, including the principal executive officer and the principal financial officer, to allow for timely decisions regarding required disclosures. The evaluation did not identify any change in the Company’s internal control over financial reporting that occurred during the quarter ended March 31, 2020 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Neither the Company nor any of its subsidiaries is a party to any material pending legal proceeding, nor is their property the subject of any material pending legal proceeding, other than ordinary routine legal proceedings arising in the ordinary course of the Company’s business. Based on the advice of legal counsel, the Company does not expect such cases will have a material, adverse effect on its business, financial position or results of operations. Legal liabilities are accrued when obligations become probable and the amount can be reasonably estimated.

Item 1A. Risk Factors

The Company’s Form 10-K as of December 31, 2019 includes detailed disclosure about the risks faced by the Company’s business. The following is an update on risk factors that have changed since the Form 10-K was filed.

The COVID-19 Coronavirus Pandemic Will Have an Uncertain Impact on the Company's Financial Condition and Results of Operations

The COVID-19 coronavirus pandemic caused escalating infections in the United States beginning in the first quarter of 2020 and may continue for some time. The spread of the outbreak has disrupted the United States economy and is likely to disrupt banking and other financial activity in the market areas in which the Company and its banking subsidiary, Westamerica Bank (the "Bank") do business.  Regions and states of the United States of America have implemented varying degrees of "stay at home" directives in an effort to prevent the spread of the virus. On March 19, 2020, the Governor of the State of California ordered all individuals living in the State of California to stay within their residence to prevent the spread of the novel coronavirus and many businesses have suspended or reduced business activities. The California "stay at home" directive excludes essential businesses, including banks, and the Bank remains open and fully operational. These "stay at home" directives have, however, significantly reduced economic activity in the United States and the State of California. California-based initial claims for unemployment have risen considerably since March of 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 decline if, for example, the general economy deteriorates, inflation increases, credit ratings decline, the issuers’ financial condition deteriorates or the liquidity for debt securities declines.

-53-

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, the Federal Open Market Committee ("FOMC") reduced the target range for the federal funds rate to 0 to 0.25 percent; relatedly, the FOMC reduced the interest rate paid on required and excess reserve balances to 0.10 percent effective March 16, 2020, all of which may negatively impact net interest income. The Bank maintains required and excess reserve balances at the Federal Reserve Bank; the amount that earns interest is identified in the Company's financial statements as "interest-bearing cash".

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. The CARES Act will provide an estimated $2 trillion in fiscal stimulus to the United States economy.

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 income 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 or a combination of the factors identified above, or other factors, could materially adversely affect the Company's business, financial condition, results of operations and prospects.

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 quarter of 2020. The decline in oil prices could negatively affect the financial results of industrial sector-based and energy sector-based corporate issuers of corporate bonds owned by the Company.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) None

(b) None

(c) Issuer Purchases of Equity Securities

The table below sets forth the information with respect to purchases made by or on behalf of Westamerica Bancorporation or any “affiliated purchaser”, as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), of common stock during the quarter ended March 31, 2020.

	2020
Period	(a) Total Number of Shares Purchased		(b) Average Price Paid per Share		(c) Number of Shares Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
	(In thousands, except price paid)
January 1 through January 31		-	$	-		-		1,750
February 1 through February 29		-		-		-		1,750
March 1 through March 31		180		51.52		180		1,570
Total		180	$	51.52		180		1,570

The Company repurchases shares of its common stock in the open market on a discretionary basis to optimize the Company’s use of equity capital and enhance shareholder value and with the intention of lessening the dilutive impact of issuing new shares under stock option plans, and other ongoing requirements.

-54-

Shares were repurchased during the period January 1, 2020 through March 31, 2020 pursuant to a program approved by the Board of Directors on July 25, 2019 authorizing the purchase of up to 1,750 thousand shares of the Company’s common stock from time to time prior to September 1, 2020.

Item 3. Defaults upon Senior Securities

None

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None

Item 6. Exhibits

Exhibit No.	Description of Exhibit
Exhibit 31.1	Certification of Chief Executive Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)
Exhibit 31.2	Certification of Chief Financial Officer pursuant to Securities Exchange Act Rule 13a-14(a)/15d-14(a)
Exhibit 32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Exhibit 32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
Exhibit 101.INS	XBRL Instance Document – The instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
Exhibit 101.SCH	XBRL Taxonomy Extension Schema Document
Exhibit 101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
Exhibit 101.DEF	XBRL Taxonomy Extension Definitions Linkbase Document
Exhibit 101.LAB	XBRL Taxonomy Extension Label Linkbase Document
Exhibit 101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

[The remainder of this page intentionally left blank]

-55-

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

WESTAMERICA BANCORPORATION

(Registrant)

/s/ Jesse Leavitt

Jesse Leavitt

Senior Vice President and Chief Financial Officer

(Principal Financial and Chief Accounting Officer)

Date: May 5, 2020

-56-

EX-31.1

EXHIBIT 31.1

CERTIFICATION UNDER SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, David L. Payne certify that:

1. I have reviewed this report on Form 10-Q of Westamerica Bancorporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the  audit committee of registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ David L. Payne                                                                 

David L. Payne

Chairman, President and Chief Executive Officer

Date: May 5, 2020

EX-31.2

EXHIBIT 31.2

CERTIFICATION UNDER SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Jesse Leavitt certify that:

1. I have reviewed this report on Form 10-Q of Westamerica Bancorporation;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

/s/ Jesse Leavitt                                                                    

Jesse Leavitt

Senior Vice President and Chief Financial Officer

Date: May 5, 2020

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Westamerica Bancorporation (the Company) on Form 10-Q for the period ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, David L. Payne, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David L. Payne                                                                 

David L. Payne

Chairman, President and Chief Executive Officer

Date: May 5, 2020

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Westamerica Bancorporation (the Company) on Form 10-Q for the period ended March 31, 2020 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Jesse Leavitt, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Jesse Leavitt                                                                               

Jesse Leavitt

Senior Vice President and Chief Financial Officer

Date: May 5, 2020

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Loans and Leases Receivable, Allowance, Ending Balance	$ 24,804	$ 20,477	$ 19,484	$ 21,351
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	0		0
Financing Receivable, Troubled Debt Restructuring	$ 6,362		6,713
Troubled Debt Restructurings During Period	0	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	$ 0	$ 0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Financing Receivable, Held-for-Sale	$ 0		0
Other Real Estate, Ending Balance	43		43
Other Real Estate, Reserve	0		0
Mortgage Loans in Process of Foreclosure, Amount	393		124
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	0		0
Commercial Real Estate Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	4,753	$ 3,927	4,064	3,884
Financing Receivable, Troubled Debt Restructuring	6,156		6,492
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral, Total	$ 0
Number of Collateral-dependent Loans	1
Collateral-dependent Loans, Balance	$ 3,240
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	11,538	5,481	6,445	5,645
Consumer Portfolio Segment [Member] | Financial Asset, 60 or More Days Past Due [Member]
Collateral-dependent Loans, Balance	1,060
Residential Portfolio Segment [Member]
Loans and Leases Receivable, Allowance, Ending Balance	70	$ 261	206	$ 869
Financing Receivable, Troubled Debt Restructuring	$ 188		189
Number of Collateral-dependent Loans	2
Collateral-dependent Loans, Balance	$ 393
Restructured Loans [Member]
Financing Receivable, Troubled Debt Restructuring	6,362		6,713
Impaired Loans, Restructured, Nonaccrual Status	3,420		$ 3,670
Nonperforming Financial Instruments [Member]
Loans and Leases Receivable, Allowance, Ending Balance	$ 0

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Note 2 - Accounting Policies - Impact of Adoption of ASU 2016-13 (Details) - USD ($) $ in Thousands	Mar. 31, 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		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

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Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Available for sale securities, less than 12 months, number of investment positions	105	16
Available for sale securities, less than 12 months, fair value	$ 1,102,909	$ 96,910
Available for sale securities, less than 12 months, unrealized losses	$ (54,958)	$ (314)
Available for sale securities, 12 months or longer, number of investment positions	17	70
Available for sale securities, 12 months or longer, fair value	$ 41,854	$ 462,348
Available for sale securities, 12 months or longer, unrealized losses	$ (939)	$ (6,557)
Available for sale securities, total, number of investment positions	122	86
Available for sale securities, total, fair value	$ 1,144,763	$ 559,258
Available for sale securities, total, unrealized losses	$ (55,897)	$ (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	0	6
Available for sale securities, less than 12 months, fair value	$ 0	$ 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	2	47
Available for sale securities, 12 months or longer, fair value	$ 363	$ 347,384
Available for sale securities, 12 months or longer, unrealized losses	$ (7)	$ (5,738)
Available for sale securities, total, number of investment positions	2	53
Available for sale securities, total, fair value	$ 363	$ 359,058
Available for sale securities, total, unrealized losses	$ (7)	$ (5,838)
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		54
Held to Maturity securities, 12 months or longer, fair value		$ 277,203
Held to Maturity securities, 12 months or longer, unrecognized losses		$ (2,148)
Held to Maturity securities, total, number of investment positions		60
Held to Maturity securities, total, fair value		$ 289,301
Held to Maturity securities, total, unrecognized losses		$ (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	$ 3,666	$ 3,708
Available for sale securities, less than 12 months, unrealized losses	$ (8)	$ (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	$ 3,666	$ 3,708
Available for sale securities, total, unrealized losses	$ (8)	$ (3)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	10	0
Available for sale securities, less than 12 months, fair value	$ 6,627	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ (66)	$ 0
Available for sale securities, 12 months or longer, number of investment positions	7	7
Available for sale securities, 12 months or longer, fair value	$ 4,072	$ 4,163
Available for sale securities, 12 months or longer, unrealized losses	$ (130)	$ (44)
Available for sale securities, total, number of investment positions	17	7
Available for sale securities, total, fair value	$ 10,699	$ 4,163
Available for sale securities, total, unrealized losses	$ (196)	$ (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)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	93	8
Available for sale securities, less than 12 months, fair value	$ 1,082,643	$ 71,577
Available for sale securities, less than 12 months, unrealized losses	$ (54,857)	$ (162)
Available for sale securities, 12 months or longer, number of investment positions	8	11
Available for sale securities, 12 months or longer, fair value	$ 37,419	$ 64,380
Available for sale securities, 12 months or longer, unrealized losses	$ (802)	$ (717)
Available for sale securities, total, number of investment positions	101	19
Available for sale securities, total, fair value	$ 1,120,062	$ 135,957
Available for sale securities, total, unrealized losses	$ (55,659)	$ (879)
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions		0
Available for sale securities, less than 12 months, fair value		$ 0
Available for sale securities, less than 12 months, unrealized losses		$ 0
Available for sale securities, 12 months or longer, number of investment positions		2
Available for sale securities, 12 months or longer, fair value		$ 544
Available for sale securities, 12 months or longer, unrealized losses		$ (9)
Available for sale securities, total, number of investment positions		2
Available for sale securities, total, fair value		$ 544
Available for sale securities, total, unrealized losses		$ (9)
Collateralized Loan Obligations [Member]
Available for sale securities, less than 12 months, number of investment positions	1
Available for sale securities, less than 12 months, fair value	$ 9,973
Available for sale securities, less than 12 months, unrealized losses	$ (27)
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	1
Available for sale securities, total, fair value	$ 9,973
Available for sale securities, total, unrealized losses	$ (27)

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Note 8 - Deposits and Borrowed Funds

3 Months Ended

Mar. 31, 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 March 31,		At December 31,
	2020		2019
	(In thousands)
Noninterest-bearing	$	2,183,283	$	2,240,112
Interest-bearing:
Transaction		936,516		931,888
Savings		1,514,431		1,471,284
Time deposits less than $100 thousand		86,313		88,355
Time deposits $100 thousand through $250 thousand		53,335		54,874
Time deposits more than $250 thousand		25,548		26,108
Total deposits	$	4,799,426	$	4,812,621

Demand deposit overdrafts of $680 thousand and $1,055 thousand were included as loan balances at March 31, 2020 and December 31, 2019, respectively. Interest expense for aggregate time deposits with individual account balances in excess of $100 thousand was $79 thousand in the three months ended March 31, 2020 and $82 thousand in the three months ended March 31, 2019.

The following table provides additional detail regarding short-term borrowed funds.

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31,		At December 31,
	2020		2019
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	-	$	65,833
Agency residential MBS		91,839		52,485
Corporate securities		150,882		146,253
Total collateral carrying value	$	242,721	$	264,571
Total short-term borrowed funds	$	52,664	$	30,928

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned

3 Months Ended

Mar. 31, 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 March 31,		At December 31,
	2020		2019
	(In thousands)
Commercial	$	221,836	$	222,085
Commercial Real Estate		579,319		578,758
Construction		2,214		1,618
Residential Real Estate		29,924		32,748
Consumer Installment & Other		287,950		291,455
Total	$	1,121,243	$	1,126,664

The following summarizes activity in the allowance for loan losses/credit losses (loans):

	Allowance for Credit Losses (Loans)
	For the Three Months Ended March 31, 2020
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for credit losses (loans):
Balance at beginning of period, prior to adoption of ASU 2016-13	$	4,959		$	4,064	$	109		$	206		$	6,445		$	3,701		$	19,484
Impact of adopting ASU 2016-13		3,385			618		(31	)		(132	)		1,878			(3,701	)		2,017
Adjusted beginning balance		8,344			4,682		78			74			8,323			-			21,501
Provision (reversal)		27			59		29			(4	)		4,189			-			4,300
Chargeoffs		(178	)		-		-			-			(1,395	)		-			(1,573	)
Recoveries		143			12		-			-			421			-			576
Total allowance for credit losses (loans)	$	8,336		$	4,753	$	107		$	70		$	11,538		$	-		$	24,804

The significant increase in the allowance for credit losses for consumer installment and other loans was due to expected credit losses associated with forecasted unemployment.

	Allowance for Loan Losses
	For the Three Months Ended March 31, 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
Provision (reversal)		125			31		(612	)		(608	)		792			272		-
Chargeoffs		(23	)		-		-			-			(1,368	)		-		(1,391	)
Recoveries		93			12		-			-			412			-		517
Total allowance for loan losses	$	6,506		$	3,927	$	853		$	261		$	5,481		$	3,449	$	20,477

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 evaluate the borrowers’ financial condition. The Company’s subsidiary, Westamerica Bank (the “Bank”) maintains a Loan Review Department which reports directly to the Audit Committee of the Board of Directors. The Loan Review Department performs independent evaluations of loans and validates management assigned credit risk grades on evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” Loan Review Department performs continuous evaluations throughout the year. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by management and validated by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations.

The following summarizes the credit risk profile by internally assigned grade:

	Credit Risk Profile by Internally Assigned Grade
	At March 31, 2020
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	213,241	$	567,966	$	2,214	$	28,512	$	285,574	$	1,097,507
Substandard		8,595		11,353		-		1,412		1,749		23,109
Doubtful		-		-		-		-		325		325
Loss		-		-		-		-		302		302
Total	$	221,836	$	579,319	$	2,214	$	29,924	$	287,950	$	1,121,243

	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 March 31, 2020
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	221,263	$	215	$	235	$	-	$	123	$	221,836
Commercial real estate		574,045		1,438		-		-		3,836		579,319
Construction		2,214		-		-		-		-		2,214
Residential real estate		29,116		784		24		-		-		29,924
Consumer installment and other		284,383		2,108		888		178		393		287,950
Total	$	1,111,021	$	4,545	$	1,147	$	178	$	4,352	$	1,121,243

	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 March 31, 2020. There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at March 31, 2020 and 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
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, included $6,713 thousand of restructured loans, $3,670 thousand of which were on nonaccrual status.

	Impaired Loans
	For the Three Months Ended March 31,
	2019
	Average		Recognized
	Recorded		Interest
	Investment		Income
Commercial	$	9,848	$	167
Commercial real estate		6,893		147
Residential real estate		198		3
Consumer installment and other		132		-
Total	$	17,071	$	317

The following tables provide information on troubled debt restructurings (TDRs):

	Troubled Debt Restructurings
	At March 31, 2020
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		2	$	278	$	18	$	16
Commercial real estate		6		8,367		6,156		-
Residential real estate		1		241		188		-
Total		9	$	8,886	$	6,362	$	16

	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 months ended March 31, 2020, the Company did not modify any loans that were considered troubled debt restructurings including those under the Coronavirus Aid, Relief, and Economic Security Act. During the three months ended March 31, 2019, the Company did not modify any loans that were considered troubled debt restructurings. There were no chargeoffs related to troubled debt restructurings made during the three months ended March 31, 2020 and March 31, 2019. During the three months ended March 31, 2020 and 2019, no troubled debt restructured loans defaulted within 12 months of the modification date. A troubled debt restructuring is considered to be in default when payments are ninety days or more past due.

TDRs of $6,362 thousand included loans of $3,420 thousand on nonaccrual status at March 31, 2020. No allowance for credit losses was allocated to one commercial real estate loan secured by real property with a balance of $3,240 thousand, which was considered collateral-dependent at March 31, 2020. At March 31, 2020, $1,060 thousand of indirect consumer installment loans secured by personal property were past due 60 days or more and considered collateral-dependent and two residential real estate loans totaling $393 thousand secured by real property were considered collateral-dependent. There were no other collateral-dependent loans at March 31, 2020. A loan is considered collateral-dependent when the borrower is experiencing financial difficult and repayment is expected to be provided substantially through the operation or sale of the collateral.

Based on the most recent analysis performed, the risk category of loans by class of loans is as follows:

	At March 31, 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	$	25,425	$	7,244	$	28,594	$	13,493	$	23,572	$	48,590	$	4,423	$	151,341	$	61,900	$	213,241
Substandard		92		-		12		17		-		-		8,008		8,129		466		8,595
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	25,517	$	7,244	$	28,606	$	13,510	$	23,572	$	48,590	$	12,431	$	159,470	$	62,366	$	221,836

	At March 31, 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	$	115,511	$	53,588	$	51,776	$	126,831	$	98,166	$	98,997	$	23,097	$	567,966	$	-	$	567,966
Substandard		3,314		1,327		5,750		110		-		-		852		11,353		-		11,353
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	118,825	$	54,915	$	57,526	$	126,941	$	98,166	$	98,997	$	23,949	$	579,319	$	-	$	579,319

	At March 31, 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	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214
Substandard		-		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214

	At March 31, 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	$	28,512	$	-	$	-	$	-	$	-	$	-	$	-	$	28,512	$	-	$	28,512
Substandard		1,412		-		-		-		-		-		-		1,412		-		1,412
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	29,924	$	-	$	-	$	-	$	-	$	-	$	-	$	29,924	$	-	$	29,924

The Company considers the delinquency and nonaccrual status of the consumer loan portfolio and its impact on the allowance for credit losses. The following table presents the amortized cost in consumer installment and other loans based on delinquency and nonaccrual status:

	At March 31, 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	$	7,333	$	10,129	$	26,298	$	30,001	$	62,513	$	81,490	$	30,103	$	247,867	$	36,516	$	284,383
30-59 days past due		57		225		270		329		543		541		42		2,007		101		2,108
60-89 days past due		26		107		108		148		301		196		-		886		2		888
Past due 90 days or more		7		8		23		17		76		43		-		174		4		178
Nonaccrual		-		-		-		-		-		-		-		-		393		393
Total	$	7,423	$	10,469	$	26,699	$	30,495	$	63,433	$	82,270	$	30,145	$	250,934	$	37,016	$	287,950

There were no loans held for sale at March 31, 2020 and December 31, 2019.

At March 31, 2020 and December 31, 2019, the Company held total other real estate owned (OREO) of $43 thousand. There was no reserve applied against OREO at March 31, 2020 and December 31, 2019. There were no foreclosed residential real estate properties at March 31, 2020 and December 31, 2019. The amount of consumer mortgage loans outstanding secured by residential real estate properties for which formal foreclosure proceedings were in process was $393 thousand at March 31, 2020 and $124 thousand at December 31, 2019.

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Note 6 - Other Assets and Other Liabilities - Maturity of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
The remaining nine months of 2020	$ 4,655
2021	4,645
2022	3,703
2023	2,980
2024	1,565
Thereafter	708
Total minimum lease payments	18,256
Less: discount	(1,010)
Operating lease liability	$ 17,246	$ 17,136

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Note 6 - Other Assets and Other Liabilities (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands			3 Months Ended
	Sep. 27, 2019	Jun. 28, 2018	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($) shares
Deferred Tax Assets, Net, Total			$ 21,048	$ 11,085
Deferred Tax Liabilities, Unrealized Gains on Available for Sale Securities			72	10,934
LIHTC Investments			20,135	20,773
Qualified Affordable Housing Project Investments, Commitment			$ 15,617	16,231
Lessee, Operating Lease, Term of Contract (Year)			5 years
Lessee, Operating Lease, Renewal Term (Year)			5 years
Operating Lease, Liability, Total			$ 17,246	17,136
Operating Lease, Right-of-Use Asset			$ 17,246	$ 17,136
Operating Lease, Weighted Average Remaining Lease Term (Year)			3 years 10 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent			2.81%
Operating Lease, Cost			$ 1,659
Contingent Commitment, Remainder of Fiscal Year [Member]
Qualified Affordable Housing Project Investments, Commitment			4,394
Contingent Commitment, Year 2 [Member]
Qualified Affordable Housing Project Investments, Commitment			4,071
Contingent Commitment, Year 3 [Member]
Qualified Affordable Housing Project Investments, Commitment			5,983
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment			295
Contingent Commitment, Year 5 [Member]
Qualified Affordable Housing Project Investments, Commitment			24
Contingent Commitment, Year 6 [Member]
Qualified Affordable Housing Project Investments, Commitment			302
Contingent Commitment, Year 7 [Member]
Qualified Affordable Housing Project Investments, Commitment			74
Contingent Commitment, Year 8 [Member]
Qualified Affordable Housing Project Investments, Commitment			$ 474
Visa Inc. [Member] | Common Class A [Member]
Share Price (in dollars per share) | $ / shares			$ 161.12
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

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Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Assets:
Cash and due from banks	$ 304,628	$ 373,421
Debt securities available for sale	3,210,689	3,078,846
Debt securities held to maturity (DSHTM), net of allowance for credit losses (DSHTM) of $16 at March 31, 2020 and $ - at December 31, 2019 (Fair value of $695,860 at March 31, 2020 and $744,296 at December 31, 2019)	681,821	738,072
Loans	1,121,243	1,126,664
Allowance for credit losses (loans)	(24,804)	(19,484)
Loans, net of allowance for credit losses (loans)	1,096,439	1,107,180
Other real estate owned	43	43
Premises and equipment, net	35,403	34,597
Identifiable intangibles, net	1,318	1,391
Goodwill	121,673	121,673
Other assets	176,112	164,332
Total Assets	5,628,126	5,619,555
Liabilities:
Noninterest-bearing deposits	2,183,283	2,240,112
Interest-bearing deposits	2,616,143	2,572,509
Total deposits	4,799,426	4,812,621
Short-term borrowed funds	52,664	30,928
Other liabilities	70,490	44,589
Total Liabilities	4,922,580	4,888,138
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 26,932 at March 31, 2020 and 27,062 at December 31, 2019	465,701	465,460
Deferred compensation	771	771
Accumulated other comprehensive income	171	26,051
Retained earnings	238,903	239,135
Total Shareholders' Equity	705,546	731,417
Total Liabilities and Shareholders' Equity	$ 5,628,126	$ 5,619,555

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Note 7 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
For the three months ended March 31, 2020 (actual)	$ 73	$ 310
Core Deposits [Member]
For the three months ended March 31, 2020 (actual)	73
Estimate for the remainder of year ending December 31, 2020	214
Estimate for year ending December 31, 2021	269
2022	252
2023	236
2024	222
2025	$ 125

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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Deferred Compensation, Share-based Payments [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] AOCI Attributable to Parent [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjusted Balance [Member]	Common Stock [Member]	Deferred Compensation, Share-based Payments [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 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											19,646	19,646
Other comprehensive income										28,747		28,747
Shares issued from stock warrant exercise, net of repurchase (in shares)								51
Exercise of stock options (in shares)								120
Exercise of stock options								$ 5,771				5,771
Restricted stock activity								624
Stock based compensation								541				541
Stock awarded to employees								$ 17				17
Dividends											(10,745)	(10,745)
Balance (in shares) at Mar. 31, 2019								26,901
Balance at Mar. 31, 2019								$ 455,304	771	(11,249)	211,941	656,767
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											16,962	16,962
Other comprehensive income										(25,880)		(25,880)
Exercise of stock options (in shares)								40
Exercise of stock options								$ 2,266				2,266
Restricted stock activity								534				534
Stock based compensation								525				525
Stock awarded to employees								$ 21				21
Dividends											(11,104)	(11,104)
Restricted stock activity (in shares)								10
Retirement of common stock (in shares)								(180)
Retirement of common stock								$ (3,105)			(6,142)	(9,247)
Balance (in shares) at Mar. 31, 2020								26,932
Balance at Mar. 31, 2020								$ 465,701	$ 771	$ 171	$ 238,903	$ 705,546

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Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2017
Loan Commitments, Not Unconditionally Cancellable		$ 14,947
Unfunded Loan Commitments		264,310		$ 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		2,441		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

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Note 9 - Fair Value Measurements (Details Textual)	3 Months Ended
	Mar. 31, 2020
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate	10.00%

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Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Mar. 31, 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%
Concentration Risk, Issuer Relationships	98
Loan Commitments and Standby Letters of Credit Related to Real Estate Loans	$ 41,106	$ 43,129
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

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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
	Mar. 31, 2020	Mar. 31, 2019
Balance at beginning of period, prior to adoption of ASU 2016-13	$ 19,484	$ 21,351
Provision (reversal)	4,300	0
Chargeoffs	(1,573)	(1,391)
Recoveries	576	517
Total allowance for credit losses (loans)	24,804	20,477
Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	2,017
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	21,501
Unallocated Financing Receivable [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	3,701	3,177
Provision (reversal)	0	272
Chargeoffs	0	0
Recoveries	0	0
Total allowance for credit losses (loans)	0	3,449
Unallocated Financing Receivable [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	(3,701)
Unallocated Financing Receivable [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	0
Commercial Portfolio Segment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	4,959	6,311
Provision (reversal)	27	125
Chargeoffs	(178)	(23)
Recoveries	143	93
Total allowance for credit losses (loans)	8,336	6,506
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	3,385
Commercial Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	8,344
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	4,064	3,884
Provision (reversal)	59	31
Chargeoffs	0	0
Recoveries	12	12
Total allowance for credit losses (loans)	4,753	3,927
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	618
Commercial Real Estate Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	4,682
Construction Portfolio Segment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	109	1,465
Provision (reversal)	29	(612)
Chargeoffs	0	0
Recoveries	0	0
Total allowance for credit losses (loans)	107	853
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	(31)
Construction Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	78
Residential Portfolio Segment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	206	869
Provision (reversal)	(4)	(608)
Chargeoffs	0	0
Recoveries	0	0
Total allowance for credit losses (loans)	70	261
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	(132)
Residential Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	74
Consumer Portfolio Segment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	6,445	5,645
Provision (reversal)	4,189	792
Chargeoffs	(1,395)	(1,368)
Recoveries	421	412
Total allowance for credit losses (loans)	11,538	$ 5,481
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	1,878
Consumer Portfolio Segment [Member] | Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Balance at beginning of period, prior to adoption of ASU 2016-13	$ 8,323

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Impaired Loans (Details) $ in Thousands	Dec. 31, 2019 USD ($)
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

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Loans Receivable [Table Text Block]

	At March 31,		At December 31,
	2020		2019
	(In thousands)
Commercial	$	221,836	$	222,085
Commercial Real Estate		579,319		578,758
Construction		2,214		1,618
Residential Real Estate		29,924		32,748
Consumer Installment & Other		287,950		291,455
Total	$	1,121,243	$	1,126,664

Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]

	Allowance for Credit Losses (Loans)
	For the Three Months Ended March 31, 2020
												Consumer
				Commercial					Residential			Installment
	Commercial			Real Estate		Construction			Real Estate			and Other			Unallocated			Total
	(In thousands)
Allowance for credit losses (loans):
Balance at beginning of period, prior to adoption of ASU 2016-13	$	4,959		$	4,064	$	109		$	206		$	6,445		$	3,701		$	19,484
Impact of adopting ASU 2016-13		3,385			618		(31	)		(132	)		1,878			(3,701	)		2,017
Adjusted beginning balance		8,344			4,682		78			74			8,323			-			21,501
Provision (reversal)		27			59		29			(4	)		4,189			-			4,300
Chargeoffs		(178	)		-		-			-			(1,395	)		-			(1,573	)
Recoveries		143			12		-			-			421			-			576
Total allowance for credit losses (loans)	$	8,336		$	4,753	$	107		$	70		$	11,538		$	-		$	24,804

	Allowance for Loan Losses
	For the Three Months Ended March 31, 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
Provision (reversal)		125			31		(612	)		(608	)		792			272		-
Chargeoffs		(23	)		-		-			-			(1,368	)		-		(1,391	)
Recoveries		93			12		-			-			412			-		517
Total allowance for loan losses	$	6,506		$	3,927	$	853		$	261		$	5,481		$	3,449	$	20,477

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 March 31, 2020
	Commercial		Commercial Real Estate		Construction		Residential Real Estate		Consumer Installment and Other		Total
	(In thousands)
Grade:
Pass	$	213,241	$	567,966	$	2,214	$	28,512	$	285,574	$	1,097,507
Substandard		8,595		11,353		-		1,412		1,749		23,109
Doubtful		-		-		-		-		325		325
Loss		-		-		-		-		302		302
Total	$	221,836	$	579,319	$	2,214	$	29,924	$	287,950	$	1,121,243

	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 March 31, 2020
	Current and Accruing		30-59 Days Past Due and Accruing		60-89 Days Past Due and Accruing		Past Due 90 Days or More and Accruing		Nonaccrual		Total Loans
	(In thousands)
Commercial	$	221,263	$	215	$	235	$	-	$	123	$	221,836
Commercial real estate		574,045		1,438		-		-		3,836		579,319
Construction		2,214		-		-		-		-		2,214
Residential real estate		29,116		784		24		-		-		29,924
Consumer installment and other		284,383		2,108		888		178		393		287,950
Total	$	1,111,021	$	4,545	$	1,147	$	178	$	4,352	$	1,121,243

	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
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 Ended March 31,
	2019
	Average		Recognized
	Recorded		Interest
	Investment		Income
Commercial	$	9,848	$	167
Commercial real estate		6,893		147
Residential real estate		198		3
Consumer installment and other		132		-
Total	$	17,071	$	317

Financing Receivable, Troubled Debt Restructuring [Table Text Block]

	Troubled Debt Restructurings
	At March 31, 2020
							Period-End
							Individual
	Number of		Pre-Modification		Period-End		Impairment
	Contracts		Carrying Value		Carrying Value		Allowance
	($ in thousands)
Commercial		2	$	278	$	18	$	16
Commercial real estate		6		8,367		6,156		-
Residential real estate		1		241		188		-
Total		9	$	8,886	$	6,362	$	16

	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 March 31, 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	$	25,425	$	7,244	$	28,594	$	13,493	$	23,572	$	48,590	$	4,423	$	151,341	$	61,900	$	213,241
Substandard		92		-		12		17		-		-		8,008		8,129		466		8,595
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	25,517	$	7,244	$	28,606	$	13,510	$	23,572	$	48,590	$	12,431	$	159,470	$	62,366	$	221,836

	At March 31, 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	$	115,511	$	53,588	$	51,776	$	126,831	$	98,166	$	98,997	$	23,097	$	567,966	$	-	$	567,966
Substandard		3,314		1,327		5,750		110		-		-		852		11,353		-		11,353
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	118,825	$	54,915	$	57,526	$	126,941	$	98,166	$	98,997	$	23,949	$	579,319	$	-	$	579,319

	At March 31, 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	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214
Substandard		-		-		-		-		-		-		-		-		-		-
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	2,214	$	2,214

	At March 31, 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	$	28,512	$	-	$	-	$	-	$	-	$	-	$	-	$	28,512	$	-	$	28,512
Substandard		1,412		-		-		-		-		-		-		1,412		-		1,412
Doubtful		-		-		-		-		-		-		-		-		-		-
Loss		-		-		-		-		-		-		-		-		-		-
Total	$	29,924	$	-	$	-	$	-	$	-	$	-	$	-	$	29,924	$	-	$	29,924

	At March 31, 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	$	7,333	$	10,129	$	26,298	$	30,001	$	62,513	$	81,490	$	30,103	$	247,867	$	36,516	$	284,383
30-59 days past due		57		225		270		329		543		541		42		2,007		101		2,108
60-89 days past due		26		107		108		148		301		196		-		886		2		888
Past due 90 days or more		7		8		23		17		76		43		-		174		4		178
Nonaccrual		-		-		-		-		-		-		-		-		393		393
Total	$	7,423	$	10,469	$	26,699	$	30,495	$	63,433	$	82,270	$	30,145	$	250,934	$	37,016	$	287,950

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Note 12 - Impact of COVID-19

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Impact of COVID-19 [Text Block]

Note 12: Impact of COVID-19

The COVID-19 Coronavirus Pandemic Will Have an Uncertain Impact on the Company's Financial Condition and Results of Operations

The COVID-19 coronavirus pandemic caused escalating infections in the United States beginning in the first quarter of 2020 and may continue for some time. The spread of the outbreak has disrupted the United States economy and is likely to disrupt banking and other financial activity in the market areas in which the Company and its banking subsidiary, Westamerica Bank (the "Bank") do business.  Regions and states of the United States of America have implemented varying degrees of "stay at home" directives in an effort to prevent the spread of the virus. On March 19, 2020, the Governor of the State of California ordered all individuals living in the State of California to stay within their residence to prevent the spread of the novel coronavirus and many businesses have suspended or reduced business activities. The California "stay at home" directive excludes essential businesses, including banks, and the Bank remains open and fully operational. These "stay at home" directives have, however, significantly reduced economic activity in the United States and the State of California. California-based initial claims for unemployment have risen considerably since March of 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 decline if, for example, the general economy deteriorates, inflation increases, credit ratings decline, the issuers’ financial condition deteriorates or the liquidity for debt securities declines.

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, the Federal Open Market Committee ("FOMC") reduced the target range for the federal funds rate to 0 to 0.25 percent; relatedly, the FOMC reduced the interest rate paid on required and excess reserve balances to 0.10 percent effective March 16, 2020, all of which may negatively impact net interest income. The Bank maintains required and excess reserve balances at the Federal Reserve Bank; the amount that earns interest is identified in the Company's financial statements as "interest-bearing cash".

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. The CARES Act will provide an estimated $2 trillion in fiscal stimulus to the United States economy.

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 income 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 or a combination of the factors identified above, or other factors, could materially adversely affect the Company's business, financial condition, results of operations and prospects.

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 quarter of 2020. The decline in oil prices could negatively affect the financial results of industrial sector-based and energy sector-based corporate issuers of corporate bonds owned by the Company.

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Note 9 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

	At March 31, 2020
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (1)
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	911,134	$	-	$	911,134	$	-
Agency commercial MBS		3,666		-		3,666		-
Securities of U.S. Government entities		521		-		521		-
Obligations of states and political subdivisions		156,855		-		156,855		-
Corporate securities		2,081,968		-		2,081,968		-
Collateralized loan obligations (CLO)		56,545		-		56,545		-
Total debt securities available for sale	$	3,210,689	$	-	$	3,210,689	$	-

	At December 31, 2019
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (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		-
CLO		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
									Three Months Ended
	At March 31, 2020								March 31, 2020
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	43	$	-	$	-	$	43	$	-
Loans:
Commercial		5,641		-		-		5,641		-
Commercial real estate		3,773		-		-		3,773		-
Residential real estate		188		-		-		188		-
Total assets measured at fair value on a nonrecurring basis	$	9,645	$	-	$	-	$	9,645	$	-

									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 March 31, 2020
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	304,628	$	304,628	$	304,628	$	-	$	-
Debt securities held to maturity		681,821		695,844		-		695,844		-
Loans		1,096,439		1,198,584		-		-		1,198,584
Financial Liabilities:
Deposits	$	4,799,426	$	4,799,277	$	-	$	4,634,230	$	165,047
Short-term borrowed funds		52,664		52,664		-		52,664		-

	At December 31, 2019
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
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		-

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Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	514	463

XML

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Mar. 31, 2020		Dec. 31, 2019
Investment securities available for sale		$ 3,210,689		$ 3,078,846
Agency Residential MBS [Member]
Investment securities available for sale		911,134		939,750
US Treasury Securities [Member]
Investment securities available for sale				20,000
Agency Commercial MBS [Member]
Investment securities available for sale		3,666		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		521		544
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		156,855		163,139
Debt Security, Corporate, US [Member]
Investment securities available for sale		2,081,968		1,833,783
Collateralized Loan Obligations [Member]
Investment securities available for sale		56,545		6,755
Fair Value, Recurring [Member]
Investment securities available for sale		3,210,689		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		3,210,689		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		911,134		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		911,134		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		3,666		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		3,666		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		521		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		521		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		156,855		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		156,855		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		2,081,968		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		2,081,968		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] | Collateralized Loan Obligations [Member]
Investment securities available for sale		56,545		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		56,545		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 three months ended March 31, 2020.

[2] There were no transfers in to or out of level 3 during the twelve months ended December 31, 2019.

XML

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 1,121,243	$ 1,126,664
Commercial Portfolio Segment [Member]
Loans	221,836	222,085
Commercial Real Estate Portfolio Segment [Member]
Loans	579,319	578,758
Construction Portfolio Segment [Member]
Loans	2,214	1,618
Residential Portfolio Segment [Member]
Loans	29,924	32,748
Consumer Portfolio Segment [Member]
Loans	$ 287,950	$ 291,455

XML

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current and accruing	$ 1,111,021	$ 1,114,951
Nonaccrual	4,352	4,440
Total loans	1,121,243	1,126,664
Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	4,545	4,197
Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	1,147	2,636
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	178	440
Commercial Portfolio Segment [Member]
Current and accruing	221,263	221,199
Nonaccrual	123	197
Total loans	221,836	222,085
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	215	531
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	235	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	574,045	573,809
Nonaccrual	3,836	4,096
Total loans	579,319	578,758
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	1,438	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	2,214	1,618
Nonaccrual	0	0
Total loans	2,214	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	29,116	31,934
Nonaccrual	0	0
Total loans	29,924	32,748
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	784	274
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	24	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	284,383	286,391
Nonaccrual	393	147
Total loans	287,950	291,455
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	2,108	2,960
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	888	1,517
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	$ 178	$ 440

XML

Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Risk Category of Loans by Class (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 1,121,243	$ 1,126,664
Current	1,111,021	1,114,951
Nonaccrual	4,352	4,440
Financial Asset, 30 to 59 Days Past Due [Member]
Past due	4,545	4,197
Financial Asset, 60 to 89 Days Past Due [Member]
Past due	1,147	2,636
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	178	440
Commercial Portfolio Segment [Member]
Loans	221,836	222,085
Current	221,263	221,199
Nonaccrual	123	197
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	215	531
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	235	158
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Commercial Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	25,517
Commercial Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	7,244
Commercial Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	28,606
Commercial Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	13,510
Commercial Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	23,572
Commercial Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	48,590
Commercial Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	12,431
Commercial Portfolio Segment [Member] | Total Term Loans [Member]
Loans	159,470
Commercial Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	62,366
Construction Portfolio Segment [Member]
Loans	2,214	1,618
Current	2,214	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
Construction Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Construction Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Construction Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Construction Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	2,214
Commercial Real Estate Portfolio Segment [Member]
Loans	579,319	578,758
Current	574,045	573,809
Nonaccrual	3,836	4,096
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	1,438	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
Commercial Real Estate Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	118,825
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	54,915
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	57,526
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	126,941
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	98,166
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	98,997
Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	23,949
Commercial Real Estate Portfolio Segment [Member] | Total Term Loans [Member]
Loans	579,319
Commercial Real Estate Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Residential Portfolio Segment [Member]
Loans	29,924	32,748
Current	29,116	31,934
Nonaccrual	0	0
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	784	274
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	24	540
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0	0
Residential Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	29,924
Residential Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Residential Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Residential Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Residential Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Residential Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Residential Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Residential Portfolio Segment [Member] | Total Term Loans [Member]
Loans	29,924
Residential Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Consumer Portfolio Segment [Member]
Loans	287,950	291,455
Current	284,383	286,391
Nonaccrual	393	147
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	2,108	2,960
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	888	1,517
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	178	440
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	7,423
Current	7,333
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	57
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	26
Consumer Portfolio Segment [Member] | Term Loan Originated Prior [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	7
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	10,469
Current	10,129
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	225
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	107
Consumer Portfolio Segment [Member] | Term Loans Originated in 2015 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	8
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	26,699
Current	26,298
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	270
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	108
Consumer Portfolio Segment [Member] | Term Loans Originated in 2016 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	23
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	30,495
Current	30,001
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	329
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	148
Consumer Portfolio Segment [Member] | Term Loans Originated in 2017 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	17
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	63,433
Current	62,513
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	543
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	301
Consumer Portfolio Segment [Member] | Term Loans Originated in 2018 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	76
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	82,270
Current	81,490
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	541
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	196
Consumer Portfolio Segment [Member] | Term Loans Originated in 2019 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	43
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	30,145
Current	30,103
Nonaccrual	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	42
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Term Loans Originated in 2020 [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member]
Loans	250,934
Current	247,867
Nonaccrual	0
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	2,007
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due	886
Consumer Portfolio Segment [Member] | Total Term Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due	174
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	37,016
Current	36,516
Nonaccrual	393
Consumer Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due	101
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	4
Pass [Member]
Loans	1,097,507	1,103,164
Pass [Member] | Commercial Portfolio Segment [Member]
Loans	213,241	213,542
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	25,425
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	7,244
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	28,594
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	13,493
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	23,572
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	48,590
Pass [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	4,423
Pass [Member] | Commercial Portfolio Segment [Member] | Total Term Loans [Member]
Loans	151,341
Pass [Member] | Commercial Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	61,900
Pass [Member] | Construction Portfolio Segment [Member]
Loans	2,214	1,618
Pass [Member] | Construction Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Pass [Member] | Construction Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	2,214
Pass [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	567,966	567,525
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	115,511
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	53,588
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	51,776
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	126,831
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	98,166
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	98,997
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	23,097
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Total Term Loans [Member]
Loans	567,966
Pass [Member] | Commercial Real Estate Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member]
Loans	28,512	31,055
Pass [Member] | Residential Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	28,512
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Pass [Member] | Residential Portfolio Segment [Member] | Total Term Loans [Member]
Loans	28,512
Pass [Member] | Residential Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Pass [Member] | Consumer Portfolio Segment [Member]
Loans	285,574	289,424
Substandard [Member]
Loans	23,109	22,798
Substandard [Member] | Commercial Portfolio Segment [Member]
Loans	8,595	8,543
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	92
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	12
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	17
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	8,008
Substandard [Member] | Commercial Portfolio Segment [Member] | Total Term Loans [Member]
Loans	8,129
Substandard [Member] | Commercial Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	466
Substandard [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Substandard [Member] | Construction Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	11,353	11,233
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	3,314
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	1,327
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	5,750
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	110
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	852
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Total Term Loans [Member]
Loans	11,353
Substandard [Member] | Commercial Real Estate Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member]
Loans	1,412	1,693
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	1,412
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Substandard [Member] | Residential Portfolio Segment [Member] | Total Term Loans [Member]
Loans	1,412
Substandard [Member] | Residential Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Substandard [Member] | Consumer Portfolio Segment [Member]
Loans	1,749	1,329
Doubtful [Member]
Loans	325	308
Doubtful [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Doubtful [Member] | Commercial Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Doubtful [Member] | Construction Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Doubtful [Member] | Commercial Real Estate Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Doubtful [Member] | Residential Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Doubtful [Member] | Consumer Portfolio Segment [Member]
Loans	325	308
Unlikely to be Collected Financing Receivable [Member]
Loans	302	394
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Construction Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Commercial Real Estate Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member]
Loans	0	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loan Originated Prior [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2015 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2016 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2017 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2018 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2019 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Term Loans Originated in 2020 [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Total Term Loans [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Residential Portfolio Segment [Member] | Revolving Loans Amortized Cost Basis [Member]
Loans	0
Unlikely to be Collected Financing Receivable [Member] | Consumer Portfolio Segment [Member]
Loans	$ 302	$ 394

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Note 11 - Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	For the Three Months Ended
	March 31,
	2020		2019
	(In thousands, except per share data)
Net income (numerator)	$	16,962	$	19,646
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		27,068		26,841
Basic earnings per common share	$	0.63	$	0.73
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		27,068		26,841
Add common stock equivalents for options		71		71
Weighted average number of common shares outstanding - diluted (denominator)		27,139		26,912
Diluted earnings per common share	$	0.63	$	0.73

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Note 6 - Other Assets and Other Liabilities (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Other Assets [Table Text Block]

	At March 31,		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		58,496		57,810
Net deferred tax asset		21,048		11,085
Right-of-use asset		17,246		17,136
Limited partnership investments		20,135		20,773
Interest receivable		28,998		28,797
Prepaid assets		4,237		3,737
Other assets		11,725		10,767
Total other assets	$	176,112	$	164,332

Schedule of Amounts Recognized in Net Income [Table Text Block]

	For the Three Months Ended
	March 31,
	2020		2019
	(In thousands)
Investment loss included in pre-tax income	$	600	$	600
Tax credits recognized in provision for income taxes		225		266

Other Liabilities [Table Text Block]

	At March 31,		At December 31,
	2020		2019
	(In thousands)
Operating lease liability	$	17,246	$	17,136
Other liabilities		53,244		27,453
Total other liabilities	$	70,490	$	44,589

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

	Minimum future lease payments
	At March 31,
	2020
	(In thousands)
The remaining nine months of 2020	$	4,655
2021		4,645
2022		3,703
2023		2,980
2024		1,565
Thereafter		708
Total minimum lease payments		18,256
Less: discount		(1,010	)
Present value of lease liability	$	17,246

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Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2020

Accounting Policies [Abstract]

Credit Loss, Financial Instrument [Policy Text Block]

Recently Adopted Accounting Standards

In the three months ended March 31, 2020, the Company adopted the following new accounting guidance:

FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, was issued on June 16, 2016. The ASU significantly changed estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB replaced the incurred loss model with the current expected credit loss (CECL) model, which accelerated recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale are recorded through an allowance for credit losses under the new standard. The Company is also required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company adopted the ASU provisions on a modified retrospective basis on January 1, 2020. Management evaluated available data, defined portfolio segments of loans with similar attributes, and selected loss estimate models for each identified loan portfolio segment. Management measured historical loss rates for each portfolio segment. Management also segmented debt securities held to maturity, selected methods to estimate losses for each segment, and measured a loss estimate. Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. The adjustment to the allowance for credit losses was recorded through an offsetting after-tax adjustment to shareholders’ equity. The implementing entry increased allowance for credit losses by $2,017 thousand, reduced allowance for credit losses for unfunded credit commitments by $2,107 thousand and increased retained earnings by $52 thousand.

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 (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 (loans)	$	19,484	$	2,017		$	21,501
Allowance for credit losses (debt securities held to maturity)		-		16			16
Labilities
Allowance for credit losses for unfunded commitments		2,160		(2,107	)		53

Marketable Securities, Policy [Policy Text Block]

Debt Securities. Debt securities consist of securities of government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities and asset-backed securities. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling them in the near term. Trading securities are recorded at fair value with unrealized gains and losses included in net income. Held to maturity debt securities are those securities which the Company has the ability and intent to hold until maturity. Held to maturity debt securities are recorded at cost, adjusted for the amortization of premiums or accretion of discounts. Securities not included in trading or held to maturity are classified as available for sale debt securities. Available for sale debt securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale debt securities are included in accumulated other comprehensive income. Accrued interest is recorded within other assets and reversed against interest income if it is not received.

The Company utilizes third-party sources to value its investment securities; securities individually valued using quoted prices in active markets are classified as Level 1 assets in the fair value hierarchy, and securities valued using quoted prices in active markets for similar securities (commonly referred to as “matrix” pricing) are classified as Level 2 assets in the fair value hierarchy. The Company validates the reliability of third-party provided values by comparing individual security pricing for securities between more than one third-party source. When third-party information is not available, valuation adjustments are estimated in good faith by Management and classified as Level 3 in the fair value hierarchy.

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) and other regulatory guidance when performing investment security pre-purchase analysis or evaluating investment securities for credit loss. Credit ratings issued by recognized rating agencies are considered in the Company’s analysis only as a guide to the historical default rate associated with similarly-rated bonds.

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 share common risk characteristics with any of the pools of debt securities is individually evaluated and a reserve for credit losses is established at the difference between the discounted value of the expected future cash flows, based on the original effective interest rate, and the recorded amortized cost basis of the security. For certain classes of debt securities, the bank considers the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, the bank does not record expected credit losses.

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 been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through other comprehensive income, net of applicable taxes. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally considered to not be related to credit when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell nor does it believe it will be required to sell the security before the recovery of its cost basis.

If the Company intends to sell a debt security or more likely than not will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged against the allowance for credit losses with any incremental loss reported in earnings.

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 publicly traded, such as Visa Class B common stock, and securities acquired to meet regulatory requirements, such as Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. When the review indicates that impairment exists the asset value is reduced to fair value. The Company recognizes the estimated loss in noninterest income.

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. Loans which are more than 90 days delinquent with respect to interest or principal, unless they are well secured and in the process of collection, and other loans on which full recovery of principal or interest is in doubt, are placed on nonaccrual status. Interest previously accrued on loans placed on nonaccrual status is charged against interest income. In addition, some loans secured by real estate and commercial loans to borrowers experiencing financial difficulties are placed on nonaccrual status even though the borrowers continue to repay the loans as scheduled. When the ability to fully collect nonaccrual loan principal is in doubt, payments received are applied against the principal balance of the loans on a cost-recovery method until such time as full collection of the remaining recorded balance is expected. Any additional interest payments received after that time are recorded as interest income on a cash basis. Nonaccrual loans are reinstated to accrual status when none of the loan’s principal and interest is past due and improvements in credit quality eliminate doubt as to the full collectability of both principal and interest, or the loan otherwise becomes well secured and in the process of collection. Certain consumer loans or auto receivables are charged off against the allowance for credit losses when they become 120 days past due.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually, including certain classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and “troubled debt restructured” loans. In general, a restructuring constitutes a troubled debt restructuring when the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower it would not otherwise consider. The Company follows its general nonaccrual policy for troubled debt restructurings. Performing troubled debt restructurings are reinstated to accrual status when improvements in credit quality eliminate the doubt as to full collectability of both principal and interest. Under the Coronavirus Aid, Relief, and Economic Security Act, banks may elect to deem that loan modifications do not result in TDRs if they are (1) related to the novel coronavirus disease; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. At March 31, 2020, the Company has not made any such modifications.

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 reflected in the historical loss rates that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in past loan charge-off history, estimated losses based on management’s reasonable and supportable expectation of economic trends over a forecast horizon of up to two years, and other factors that impact credit loss expectations that are not reflected in the historical loss rates. Other factors include, but are not limited to, the effectiveness of the Company’s loan review system, adequacy of lending Management and staff, loan policies and procedures, problem loan trends, and concentrations of credit. At the end of the two-year forecast period loss rates revert immediately to the historical loss rates. The results of this analysis are applied to the amortized cost of the loans included within each pool.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually. The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and all “troubled debt restructured” loans individually for credit loss. A loan is considered ‘collateral-dependent’ when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. A credit loss reserve for collateral-dependent loans is established at the difference between the amortized cost basis in the loan and the fair value of the underlying collateral adjusted for costs to sell. For other individually evaluated loans that are not collateral dependent, a credit loss reserve is established at the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan’s effective interest rate.

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 unconditionally cancellable by the Company and applying the loss factors used in the allowance for credit loss methodology to estimate the liability for credit losses related to unfunded commitments. No credit loss estimate is reported for off-balance-sheet credit exposures that are unconditionally cancellable by the Company or for undrawn amounts under such arrangements that may be drawn prior to the cancellation of the arrangement.

Currently Adopted Accounting Pronouncements [Policy Text Block]

FASB ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, was issued August 2018. The ASU is part of the disclosure framework project, where the primary focus is to improve the effectiveness of disclosures in the financial statements. The ASU removes, modifies and adds disclosure requirements related to Fair Value Measurements.

The provisions of the ASU are effective January 1, 2020 with the option to early adopt any removed or modified disclosures upon issuance of the ASU. The Company early adopted the provisions to remove and/or modify relevant disclosures in the “Fair Value Measurements” note to the unaudited consolidated financial statements. The requirement to include additional disclosures was adopted by the Company January 1, 2020. The additional disclosures did not affect the financial results upon adoption.

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Issued Accounting Standards

FASB ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, was issued December 2019. The ASU is intended to simplify various aspects related to accounting for income taxes, eliminates certain exceptions to the general principles in ASC Topic 740 related to intra-period tax allocation, simplifies when companies recognize deferred taxes in an interim period, and clarifies certain aspects of the current guidance to promote consistent application. This guidance effective for public entities for fiscal years beginning after December 15, 2020, and for interim period within those fiscal years, with early adoption permitted. This guidance is applicable to the Company’s fiscal year beginning January 1, 2021. The Company is currently evaluating the potential effects of this guidance on its consolidated financial statements.

FASB ASU 2020-04, Reference Rate Reform (Topic 848): Simplifying the Accounting for Income Taxes, was issued March 2020. The ASU provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or remeasurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. ASU 2020-04 is effective March 12, 2020 through December 31, 2022. An entity may elect to apply ASU 2020-04 for contract modifications as of January 1, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The Company is currently evaluating the impacts of this ASU and has not yet determined whether LIBOR transition and this ASU will have material effects on our business operations and consolidated financial statements.

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Note 2 - Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Loans and Leases Receivable, Allowance, Ending Balance	$ 24,804		$ 19,484	$ 20,477	$ 21,351
Reserve for Unfunded Commitments		$ 2,160
Retained Earnings (Accumulated Deficit), Ending Balance	238,903		$ 239,135
Financing Receivable, Impairment Evaluation Criterion, Minimum Outstanding Principal Balance	$ 500
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

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Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Investment securities available for sale, amortized cost, 1 year or less	$ 250,816	$ 294,698
Investment securities available for sale, fair value, 1 year or less	250,551	295,255
Investment securities held to maturity, amortized cost, 1 year or less	53,960	70,378
Investment securities held to maturity, fair value, 1 year or less	54,148	70,602
Investment securities available for sale, amortized cost, over 1 to 5 years	1,057,214	1,104,775
Investment securities available for sale, fair value, over 1 to 5 years	1,074,112	1,122,391
Investment securities held to maturity, amortized cost, over 1 to 5 years	154,765	161,911
Investment securities held to maturity, fair value, over 1 to 5 years	157,306	165,126
Investment securities available for sale, amortized cost, over 5 to 10 years	984,078	670,595
Investment securities available for sale, fair value, over 5 to 10 years	939,245	683,277
Investment securities held to maturity, amortized cost, over 5 to 10 years	139,875	149,492
Investment securities held to maturity, fair value, over 5 to 10 years	143,426	153,724
Investment securities available for sale, amortized cost, over 10 years	30,949	33,489
Investment securities available for sale, fair value, over 10 years	31,981	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	2,323,057	2,103,557
Investment securities available for sale, fair value, subtotal	2,295,889	2,135,388
Investment securities held to maturity, amortized cost, subtotal	348,600	381,781
Investment securities held to maturity, fair value, subtotal	354,880	389,452
Investment securities available for sale, amortized cost	887,390	938,303
Investment securities available for sale, fair value	914,800	943,458
Investment securities held to maturity, amortized cost	333,237	356,291
Investment securities held to maturity, fair value	340,980	354,844
Investment securities available for sale, amortized cost	3,210,447	3,041,860
Investment securities available for sale, fair value	3,210,689	3,078,846
Investment securities held to maturity, amortized cost	681,837	738,072
Investment securities held to maturity, fair value	$ 695,860	$ 744,296

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Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Taxable	$ 21,964	$ 18,633
Tax-exempt from regular federal income tax	3,362	4,315
Total interest income from investment securities	$ 25,326	$ 22,948

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Note 9 - Fair Value Measurements

3 Months Ended

Mar. 31, 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 be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, loans individually evaluated for credit loss, certain loans held for investment, debt securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost or fair-value accounting of individual assets.

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 hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are:

Level 1 – Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level 1 includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities.

Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 2 includes mutual funds, federal agency securities, mortgage-backed securities, corporate securities, asset-backed securities, and municipal bonds.

Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.

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 pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote most closely reflecting the market generally used as the fair value estimate. In addition, the Company evaluates debt securities for credit loss on a quarterly basis. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates may not be realized in an actual sale of the securities.

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 or 3.

Assets Recorded at Fair Value on a Recurring Basis

The tables below present assets measured at fair value on a recurring basis on the dates indicated.

	At March 31, 2020
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (1)
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	911,134	$	-	$	911,134	$	-
Agency commercial MBS		3,666		-		3,666		-
Securities of U.S. Government entities		521		-		521		-
Obligations of states and political subdivisions		156,855		-		156,855		-
Corporate securities		2,081,968		-		2,081,968		-
Collateralized loan obligations (CLO)		56,545		-		56,545		-
Total debt securities available for sale	$	3,210,689	$	-	$	3,210,689	$	-

⁽¹⁾ There were no transfers in to or out of level 3 during the three months ended March 31, 2020.

	At December 31, 2019
	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3) (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		-
CLO		6,755		-		6,755		-
Total debt securities available for sale	$	3,078,846	$	20,000	$	3,058,846	$	-

⁽¹⁾ There were no transfers in to or out of level 3 during the twelve months ended December 31, 2019.

Assets Recorded at Fair Value on a Nonrecurring Basis

The Company may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower of cost or fair value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at March 31, 2020 and December 31, 2019, the following tables provide the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end.

									For the
									Three Months Ended
	At March 31, 2020								March 31, 2020
	Carrying Value		Level 1		Level 2		Level 3		Total Losses
	(In thousands)
Other real estate owned	$	43	$	-	$	-	$	43	$	-
Loans:
Commercial		5,641		-		-		5,641		-
Commercial real estate		3,773		-		-		3,773		-
Residential real estate		188		-		-		188		-
Total assets measured at fair value on a nonrecurring basis	$	9,645	$	-	$	-	$	9,645	$	-

									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 – Valuation is based upon present value of expected future cash flows, independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less 10% for selling costs, generally. Level 3 includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and loans collateralized by real property and other business asset collateral individually evaluated for credit loss where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. The unobservable inputs and qualitative information about the unobservable inputs are not presented as the inputs were not developed by the Company.

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 necessarily represent amounts which ultimately may be realized for assets or paid to settle liabilities. In addition, these values do not give effect to adjustments to fair value which may occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following tables are recorded in the balance sheet under the indicated captions.

The Company has not included assets and liabilities that are not financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company.

	At March 31, 2020
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
Financial Assets:	(In thousands)
Cash and due from banks	$	304,628	$	304,628	$	304,628	$	-	$	-
Debt securities held to maturity		681,821		695,844		-		695,844		-
Loans		1,096,439		1,198,584		-		-		1,198,584
Financial Liabilities:
Deposits	$	4,799,426	$	4,799,277	$	-	$	4,634,230	$	165,047
Short-term borrowed funds		52,664		52,664		-		52,664		-

	At December 31, 2019
	Carrying Amount		Estimated Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2 )		Significant Unobservable Inputs (Level 3 )
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 premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

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Note 5 - Concentration of Credit Risk

3 Months Ended

Mar. 31, 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 person owing to a commercial bank at any one time shall not exceed the following limitations: (a) unsecured loans shall not exceed 15 percent of the sum of the shareholders' equity, allowance for credit losses (loans), capital notes, and debentures of the bank, or (b) secured and unsecured loans in all shall not exceed 25 percent of the sum of the shareholders' equity, allowance for credit losses (loans), capital notes, and debentures of the bank. At March 31, 2020, the Bank did not have credit extended to any one entity exceeding these limits. At March 31, 2020, the Bank had 31 lending relationships each with aggregate amounts of $5 million or more. The Company has significant credit arrangements that are secured by real estate collateral. In addition to real estate loans outstanding as disclosed in Note 4, the Company had loan commitments related to real estate loans of $41,106 thousand and $43,129 thousand at March 31, 2020 and December 31, 2019, respectively. The Company requires collateral on all real estate loans with loan-to-value ratios at origination generally no greater than 75% on commercial real estate loans and no greater than 80% on residential real estate loans. At March 31, 2020, the Bank held corporate bonds in 98 issuing entities that exceeded $5 million for each issuer.

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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt securities held to maturity, fair value	$ 695,860	$ 744,296
Debt securities held to maturity, allowance for credit losses		$ 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)	26,932	27,062
Common stock, outstanding (in shares)	26,932	27,062
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Debt securities held to maturity, allowance for credit losses	$ 16

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Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Demand Deposit Overdrafts	$ 680		$ 1,055
Interest Expense, Time Deposits, $100,000 or More	$ 79	$ 82

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Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Dividends per share (in dollars per share)	$ 0.41	$ 0.40

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

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Note 6 - Other Assets and Other Liabilities - Summary of Other Assets (Details) - USD ($) $ in Thousands		Mar. 31, 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		58,496	57,810
Net deferred tax asset		21,048	11,085
Right-of-use asset		17,246	17,136
Limited partnership investments		20,135	20,773
Interest receivable		28,998	28,797
Prepaid assets		4,237	3,737
Other assets		11,725	10,767
Total other assets		$ 176,112	$ 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.

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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	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Individually evaluated for impairment		$ 2,413
Collectively evaluated for impairment		17,071
Total allowance for loan losses	$ 24,804	19,484	$ 20,477	$ 21,351
Individually evaluated for impairment		15,824
Collectively evaluated for impairment		1,110,840
Total loans	1,121,243	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	3,449	3,177
Individually evaluated for impairment		0
Collectively evaluated for impairment		0
Total loans		0
Commercial Portfolio Segment [Member]
Individually evaluated for impairment		2,413
Collectively evaluated for impairment		2,546
Total allowance for loan losses	8,336	4,959	6,506	6,311
Individually evaluated for impairment		8,182
Collectively evaluated for impairment		213,903
Total loans	221,836	222,085
Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment		0
Collectively evaluated for impairment		4,064
Total allowance for loan losses	4,753	4,064	3,927	3,884
Individually evaluated for impairment		7,409
Collectively evaluated for impairment		571,349
Total loans	579,319	578,758
Construction Portfolio Segment [Member]
Individually evaluated for impairment		0
Collectively evaluated for impairment		109
Total allowance for loan losses	107	109	853	1,465
Individually evaluated for impairment		0
Collectively evaluated for impairment		1,618
Total loans	2,214	1,618
Residential Portfolio Segment [Member]
Individually evaluated for impairment		0
Collectively evaluated for impairment		206
Total allowance for loan losses	70	206	261	869
Individually evaluated for impairment		190
Collectively evaluated for impairment		32,558
Total loans	29,924	32,748
Consumer Portfolio Segment [Member]
Individually evaluated for impairment		0
Collectively evaluated for impairment		6,445
Total allowance for loan losses	11,538	6,445	$ 5,481	$ 5,645
Individually evaluated for impairment		43
Collectively evaluated for impairment		291,412
Total loans	$ 287,950	$ 291,455

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Impaired Loans, Supplemental Schedule (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Average Recorded Investment	$ 17,071
Recognized Interest Income	317
Commercial Portfolio Segment [Member]
Average Recorded Investment	9,848
Recognized Interest Income	167
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	6,893
Recognized Interest Income	147
Residential Portfolio Segment [Member]
Average Recorded Investment	198
Recognized Interest Income	3
Consumer Portfolio Segment [Member]
Average Recorded Investment	132
Recognized Interest Income	$ 0

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Note 9 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Reported Value Measurement [Member]
Cash and due from banks	$ 304,628	$ 373,421
Debt securities held to maturity	681,821	738,072
Loans	1,096,439	1,107,180
Deposits	4,799,426	4,812,621
Short-term borrowed funds	52,664	30,928
Estimate of Fair Value Measurement [Member]
Cash and due from banks	304,628	373,421
Debt securities held to maturity	695,844	744,296
Loans	1,198,584	1,152,949
Deposits	4,799,277	4,810,934
Short-term borrowed funds	52,664	30,928
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	304,628	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	695,844	744,296
Loans	0	0
Deposits	4,634,230	4,643,284
Short-term borrowed funds	52,664	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	1,198,584	1,152,949
Deposits	165,047	167,650
Short-term borrowed funds	$ 0	$ 0

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Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Collateral Carrying Value	$ 242,721	$ 264,571
Short-term borrowed funds	52,664	30,928
US Government-sponsored Enterprises Debt Securities [Member]
Collateral Carrying Value	0	65,833
Agency Residential MBS [Member]
Collateral Carrying Value	91,839	52,485
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 150,882	$ 146,253

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Note 8 - Deposits and Borrowed Funds (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Deposit Liabilities, Type [Table Text Block]

	Deposits
	At March 31,		At December 31,
	2020		2019
	(In thousands)
Noninterest-bearing	$	2,183,283	$	2,240,112
Interest-bearing:
Transaction		936,516		931,888
Savings		1,514,431		1,471,284
Time deposits less than $100 thousand		86,313		88,355
Time deposits $100 thousand through $250 thousand		53,335		54,874
Time deposits more than $250 thousand		25,548		26,108
Total deposits	$	4,799,426	$	4,812,621

Schedule of Repurchase Agreements [Table Text Block]

	Repurchase Agreements (Sweep) Accounted for as Secured Borrowings
	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous
	At March 31,		At December 31,
	2020		2019
Repurchase agreements:	(In thousands)
Collateral securing borrowings:
Securities of U.S. Government sponsored entities	$	-	$	65,833
Agency residential MBS		91,839		52,485
Corporate securities		150,882		146,253
Total collateral carrying value	$	242,721	$	264,571
Total short-term borrowed funds	$	52,664	$	30,928

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Note 3 - Investment Securities (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]

	At March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	883,716	$	27,425	$	(7	)	$	911,134
Agency commercial MBS		3,674		-		(8	)		3,666
Securities of U.S. Government entities		521		-		-			521
Obligations of states and political subdivisions		153,914		3,137		(196	)		156,855
Corporate securities		2,112,100		25,527		(55,659	)		2,081,968
Collateralized Loan Obligations		56,522		50		(27	)		56,545
Total debt securities available for sale		3,210,447		56,139		(55,897	)		3,210,689
Debt securities held to maturity
Agency residential MBS		331,069		7,889		(77	)		338,881
Non-agency residential MBS		2,168		7		(76	)		2,099
Obligations of states and political subdivisions		348,600		6,282		(2	)		354,880
Total debt securities held to maturity		681,837		14,178		(155	)		695,860
Total	$	3,892,284	$	70,317	$	(56,052	)	$	3,906,549

	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 mortgage-backed securities (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 March 31, 2020
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	250,816	$	250,551	$	53,960	$	54,148
Over 1 to 5 years		1,057,214		1,074,112		154,765		157,306
Over 5 to 10 years		984,078		939,245		139,875		143,426
Over 10 years		30,949		31,981		-		-
Subtotal		2,323,057		2,295,889		348,600		354,880
MBS		887,390		914,800		333,237		340,980
Total	$	3,210,447	$	3,210,689	$	681,837	$	695,860

	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 March 31, 2020
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		-	$	-	$	-			2	$	363	$	(7	)		2	$	363	$	(7	)
Agency commercial MBS		1		3,666		(8	)		-		-		-			1		3,666		(8	)
Obligations of states and political subdivisions		10		6,627		(66	)		7		4,072		(130	)		17		10,699		(196	)
Corporate securities		93		1,082,643		(54,857	)		8		37,419		(802	)		101		1,120,062		(55,659	)
CLO		1		9,973		(27	)		-		-		-			1		9,973		(27	)
Total		105	$	1,102,909	$	(54,958	)		17	$	41,854	$	(939	)		122	$	1,144,763	$	(55,897	)

	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 Three Months
	Ended March 31,
	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 March 31, 2020
	(In thousands)
	AAA/AA/A		BBB		BB/B		Total
Agency residential MBS	$	331,069	$	-	$	-	$	331,069
Non-agency residential MBS		1,120		-		1,048		2,168
Obligations of states and political subdivisions		348,498		102		-		348,600
Total	$	680,687	$	102	$	1,048	$	681,837

Interest Income from Investments [Table Text Block]

	For the Three Months
	Ended March 31,
	2020		2019
	(In thousands)
Taxable	$	21,964	$	18,633
Tax-exempt from regular federal income tax		3,362		4,315
Total interest income from investment securities	$	25,326	$	22,948

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Note 7 - Goodwill and Identifiable Intangible Assets

3 Months Ended

Mar. 31, 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 amortized, but is evaluated for impairment at least annually. The Company did not recognize impairment during the three months ended March 31, 2020 and year ended December 31, 2019. Identifiable intangibles are amortized to their estimated residual values over their expected useful lives. Such lives and residual values are also periodically reassessed to determine if any amortization period adjustments are indicated. During the three months ended March 31, 2020 and year ended December 31, 2019 no such adjustments were recorded.

The carrying values of goodwill were:

	At March 31, 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 March 31, 2020					At December 31, 2019
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core deposit intangibles	$	56,808	$	(55,490	)	$	56,808	$	(55,417	)

As of March 31, 2020, the current period and estimated future amortization expense for identifiable intangible assets was:

	Total
	Core
	Deposit
	Intangibles
	(In thousands)
For the three months ended March 31, 2020 (actual)	$	73
Estimate for the remainder of year ending December 31, 2020		214
Estimate for year ending December 31, 2021		269
2022		252
2023		236
2024		222
2025		125

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Note 3 - Investment Securities

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Note 3: Investment Securities

The market value of equity securities was $1,771 thousand at March 31, 2019. During the three months ended March 31, 2019, the Company recognized gross unrealized holding gains of $24 thousand in earnings. The Company had no equity securities at March 31, 2020 and December 31, 2019 due to the sales of such securities during the third quarter 2019.

During the quarter ended March 31, 2020, no allowance for credit loss was recorded. An analysis of the amortized cost and fair value by major categories of debt securities available for sale, which are carried at fair value with net unrealized gains (losses) reported on an after-tax basis as a component of cumulative other comprehensive income, and debt securities held to maturity, which are carried at amortized cost, before allowance for credit losses of $16 thousand, follows:

	At March 31, 2020
			Gross		Gross
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gains		Losses			Value
	(In thousands)
Debt securities available for sale
Agency residential mortgage-backed securities (MBS)	$	883,716	$	27,425	$	(7	)	$	911,134
Agency commercial MBS		3,674		-		(8	)		3,666
Securities of U.S. Government entities		521		-		-			521
Obligations of states and political subdivisions		153,914		3,137		(196	)		156,855
Corporate securities		2,112,100		25,527		(55,659	)		2,081,968
Collateralized Loan Obligations		56,522		50		(27	)		56,545
Total debt securities available for sale		3,210,447		56,139		(55,897	)		3,210,689
Debt securities held to maturity
Agency residential MBS		331,069		7,889		(77	)		338,881
Non-agency residential MBS		2,168		7		(76	)		2,099
Obligations of states and political subdivisions		348,600		6,282		(2	)		354,880
Total debt securities held to maturity		681,837		14,178		(155	)		695,860
Total	$	3,892,284	$	70,317	$	(56,052	)	$	3,906,549

	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 mortgage-backed securities (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 March 31, 2020
	Debt Securities Available				Debt Securities Held
	for Sale				to Maturity
	Amortized		Fair		Amortized		Fair
	Cost		Value		Cost		Value
	(In thousands)
Maturity in years:
1 year or less	$	250,816	$	250,551	$	53,960	$	54,148
Over 1 to 5 years		1,057,214		1,074,112		154,765		157,306
Over 5 to 10 years		984,078		939,245		139,875		143,426
Over 10 years		30,949		31,981		-		-
Subtotal		2,323,057		2,295,889		348,600		354,880
MBS		887,390		914,800		333,237		340,980
Total	$	3,210,447	$	3,210,689	$	681,837	$	695,860

	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 affect the yield on the carrying value of mortgage-related securities. At March 31, 2020 and December 31, 2019, the Company had no high-risk collateralized mortgage obligations as defined by regulatory guidelines.

An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows:

	Debt Securities Available for Sale
	At March 31, 2020
	No. of		Less than 12 months					No. of		12 months or longer					No. of		Total
	Investment				Unrealized			Investment				Unrealized			Investment				Unrealized
	Positions		Fair Value		Losses			Positions		Fair Value		Losses			Positions		Fair Value		Losses
	($ in thousands)
Agency residential MBS		-	$	-	$	-			2	$	363	$	(7	)		2	$	363	$	(7	)
Agency commercial MBS		1		3,666		(8	)		-		-		-			1		3,666		(8	)
Obligations of states and political subdivisions		10		6,627		(66	)		7		4,072		(130	)		17		10,699		(196	)
Corporate securities		93		1,082,643		(54,857	)		8		37,419		(802	)		101		1,120,062		(55,659	)
CLO		1		9,973		(27	)		-		-		-			1		9,973		(27	)
Total		105	$	1,102,909	$	(54,958	)		17	$	41,854	$	(939	)		122	$	1,144,763	$	(55,897	)

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. The Company does not intend to sell any debt securities available for sale and has concluded that it is more likely than not that it will not be required to sell the debt securities prior to recovery of the amortized cost basis. Therefore, the Company does not consider these debt securities to have credit related loss as of March 31, 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 occur in the future.

As of March 31, 2020 and December 31, 2019, the Company had debt securities pledged to secure public deposits and short-term borrowed funds of $745,596 thousand and $760,365 thousand, respectively.

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 $14.3 million at March 31, 2020, is rated below investment grade. The $14.3 million corporate bond was issued by a pharmaceutical company which develops, manufactures and markets generic and branded human pharmaceuticals, as well as active pharmaceutical ingredients, to customers worldwide. The bond matures in 2021, and the issuing Company has refinanced much of its debt obligations beyond the maturity date. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities.

The following table presents the activity in the allowance for credit losses for debt securities held to maturity:

	For
	the Three Months
	Ended March 31,
	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 credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance.

The following table summarizes the amortized cost of debt securities held to maturity at March 31, 2020, aggregated by credit quality indicator:

	Credit Risk Profile by Credit Rating
	At March 31, 2020
	(In thousands)
	AAA/AA/A		BBB		BB/B		Total
Agency residential MBS	$	331,069	$	-	$	-	$	331,069
Non-agency residential MBS		1,120		-		1,048		2,168
Obligations of states and political subdivisions		348,498		102		-		348,600
Total	$	680,687	$	102	$	1,048	$	681,837

There were no debt securities held to maturity on nonaccrual status or past due 30 days or more as of March 31, 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
	Ended March 31,
	2020		2019
	(In thousands)
Taxable	$	21,964	$	18,633
Tax-exempt from regular federal income tax		3,362		4,315
Total interest income from investment securities	$	25,326	$	22,948

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Note 11 - Earnings Per Common Share

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Earnings Per Share [Text Block]

Note 11: 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 Ended
	March 31,
	2020		2019
	(In thousands, except per share data)
Net income (numerator)	$	16,962	$	19,646
Basic earnings per common share
Weighted average number of common shares outstanding - basic (denominator)		27,068		26,841
Basic earnings per common share	$	0.63	$	0.73
Diluted earnings per common share
Weighted average number of common shares outstanding - basic		27,068		26,841
Add common stock equivalents for options		71		71
Weighted average number of common shares outstanding - diluted (denominator)		27,139		26,912
Diluted earnings per common share	$	0.63	$	0.73

For the three months ended March 31, 2020 and 2019, options to purchase 514 thousand and 463 thousand shares of common stock, respectively, were outstanding but not included in the computation of diluted net income per share because the option exercise price exceeded the fair value of the stock such that their inclusion would have had an anti-dilutive effect.

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Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 01, 2020	Dec. 31, 2019
Equity Securities, FV-NI	$ 0	$ 1,771		$ 0
Unrealized Gain (Loss) on Securities		$ 24
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance			$ 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	745,596			760,365
Debt Securities, Available-for-sale, Amortized Cost, Total	3,210,447			3,041,860
Debt Securities, Available-for-sale, Total	3,210,689			3,078,846
Debt Securities, Held-to-maturity, Nonaccrual	0
Debt Security, Corporate, US [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	2,112,100			1,805,479
Debt Securities, Available-for-sale, Total	2,081,968			$ 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	14,300
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Debt Securities, Held-to-maturity, Allowance for Credit Loss, Ending Balance	$ 16		$ 16

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Note 3 - Investment Securities - Allowance for Credit Losses (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Beginning balance, prior to adoption of ASU 2016-13	$ 0
Impact of adopting ASU 2016-13	16
Provision	0
Chargeoffs	0
Recoveries	0
Cumulative Effect, Period of Adoption, Adjusted Balance [Member]
Total ending balance	$ 16

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Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2020	Apr. 30, 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	Q1
Document Fiscal Year Focus	2020
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 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		26,939,348

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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 16,962	$ 19,646
Other comprehensive income (loss):
Changes in net unrealized gains on debt securities available for sale	(36,744)	40,813
Deferred tax benefit (expense)	10,864	(12,066)
Changes in net unrealized gains on debt securities available for sale, net of tax	(25,880)	28,747
Total comprehensive (loss) income	$ (8,918)	$ 48,393

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Note 7 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - Core Deposits [Member] - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated Amortization	$ (55,490)	$ (55,417)

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Note 1 - Basis of Presentation

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Note 1: Basis of Presentation

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 months ended March 31, 2020 are not necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form 10-K for the year ended December 31, 2019.

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Note 6 - Other Assets and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Operating lease liability	$ 17,246	$ 17,136
Other liabilities	53,244	27,453
Total other liabilities	$ 70,490	$ 44,589

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Note 10 - Commitments and Contingent Liabilities

3 Months Ended

Mar. 31, 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 violation of any condition established in the agreement. Certain agreements provide the Company the right to cancel or reduce its obligations to lend to customers. The portion that is not cancellable unconditionally by the Company was $14,947 thousand at March 31, 2020. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $264,310 thousand at March 31, 2020 and $265,311 thousand at December 31, 2019. Standby letters of credit commit the Company to make payments on behalf of customers when certain specified future events occur. Standby letters of credit are primarily issued to support customers’ short-term financing requirements and must meet the Company’s normal credit policies and collateral requirements. Financial and performance standby letters of credit outstanding totaled $2,441 thousand at March 31, 2020 and $3,099 thousand at December 31, 2019. The Company had no commitments outstanding for commercial and similar letters of credit at March 31, 2020 and December 31, 2019. The Company had $580 thousand and $550 thousand in outstanding full recourse guarantees to a 3^rd party credit card company at March 31, 2020 and December 31, 2019, respectively. The Company had a reserve for unfunded commitments of $53 thousand at March 31, 2020 and $2,160 thousand at December 31, 2019, included in other liabilities.

The Company determined that it will be obligated to provide refunds of revenue recognized in years prior to 2018 to some customers. The Company initially estimated the probable amount of these obligations to be $5,542 thousand and accrued a liability for such amount in 2017; based on additional information received in the second quarter 2019, the Company increased such liability to $5,843 thousand by recognizing an expense of $301 thousand.

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 expect such cases will have a material, adverse effect on its financial position or results of operations.

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Note 6 - Other Assets and Other Liabilities

3 Months Ended

Mar. 31, 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 March 31,		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		58,496		57,810
Net deferred tax asset		21,048		11,085
Right-of-use asset		17,246		17,136
Limited partnership investments		20,135		20,773
Interest receivable		28,998		28,797
Prepaid assets		4,237		3,737
Other assets		11,725		10,767
Total other assets	$	176,112	$	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.

The net deferred tax asset at March 31, 2020 of $21,048 thousand was net of deferred tax obligations of $72 thousand related to available for sale debt securities unrealized gains. The net deferred tax asset at December 31, 2019 of $11,085 thousand was net of deferred tax obligations of $10,934 thousand related to available for sale debt securities unrealized gains.

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, Visa Inc. announced a revised conversion rate applicable to its class B common stock resulting from its September 27, 2019 deposit of funds into its litigation escrow account. This funding reduced the conversion rate of class B common stock into class A common stock, which is unrestricted and trades actively on the New York Stock Exchange, from 1.6298 to 1.6228 per share, effective as of September 27, 2019. Visa Inc. class A common stock had a closing price of $161.12 per share on March 31, 2020, the last day of stock market trading for the first quarter 2020. The ultimate value of the Company’s Visa Inc. class B shares is subject to the extent of Visa Inc.’s future litigation escrow fundings, the resulting conversion rate to class A common stock, and current and future trading restrictions on the class B common stock.

The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At March 31, 2020, this investment totaled $20,135 thousand and $15,617 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At December 31, 2019, this investment totaled $20,773 thousand and $16,231 thousand of this amount represents outstanding equity capital commitments that are included in other liabilities. At March 31, 2020, the $15,617 thousand of outstanding equity capital commitments are expected to be paid as follows, $4,394 thousand in the remainder of 2020, $4,071 thousand in 2021, $5,983 thousand in 2022, $295 thousand in 2023, $24 thousand in 2024, $302 thousand in 2025, $74 thousand in 2026 and $474 thousand in 2027 or thereafter.

The amounts recognized in net income for these investments include:

	For the Three Months Ended
	March 31,
	2020		2019
	(In thousands)
Investment loss included in pre-tax income	$	600	$	600
Tax credits recognized in provision for income taxes		225		266

Other liabilities consisted of the following:

	At March 31,		At December 31,
	2020		2019
	(In thousands)
Operating lease liability	$	17,246	$	17,136
Other liabilities		53,244		27,453
Total other liabilities	$	70,490	$	44,589

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 5 years. Certain lease arrangements contain extension options, which can be exercised at the Company’s option, for one or more additional 5 year terms. Unexercised extension options are not considered reasonably certain of exercise and have not been included in the lease term used to determine the lease liability or right-of-use asset. The Company did not have any finance leases as of March 31, 2020.

As of March 31, 2020, the Company recorded a lease liability of $17,246 thousand and a right-of-use asset of $17,246 thousand, respectively. The weighted average remaining life of operating leases and weighted average discount rate used to determine operating lease liabilities were 3.9 years and 2.81%, respectively, at March 31, 2020. The Company did not have any material lease incentives, unamortized initial direct costs, prepaid lease expense, or accrued lease expense as of March 31, 2020.

Total lease costs during the three months ended March 31, 2020, of $1,659 thousand was recorded within occupancy and equipment expense. The Company did not have any material short-term or variable leases costs or sublease income during the three months ended March 31, 2020.

The following table summarizes the remaining lease payments of operating lease liabilities:

	Minimum future lease payments
	At March 31,
	2020
	(In thousands)
The remaining nine months of 2020	$	4,655
2021		4,645
2022		3,703
2023		2,980
2024		1,565
Thereafter		708
Total minimum lease payments		18,256
Less: discount		(1,010	)
Present value of lease liability	$	17,246

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Note 2 - Accounting Policies

3 Months Ended

Mar. 31, 2020

Notes to Financial Statements

Significant Accounting Policies [Text Block]

Note 2: Accounting Policies

The most significant accounting policies followed by the Company are presented in Note 1 to the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, it is reasonably possible conditions could change materially affecting results of operations and financial conditions.

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 carried on the financial statements at fair value warrants a writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when available.

Certain amounts in prior periods have been reclassified to conform to the current presentation.

Recently Adopted Accounting Standards

In the three months ended March 31, 2020, the Company adopted the following new accounting guidance:

FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, was issued on June 16, 2016. The ASU significantly changed estimates for credit losses related to financial assets measured at amortized cost and certain other contracts. For estimating credit losses, the FASB replaced the incurred loss model with the current expected credit loss (CECL) model, which accelerated recognition of credit losses. Additionally, credit losses relating to debt securities available-for-sale are recorded through an allowance for credit losses under the new standard. The Company is also required to provide additional disclosures related to the financial assets within the scope of the new standard.

The Company adopted the ASU provisions on a modified retrospective basis on January 1, 2020. Management evaluated available data, defined portfolio segments of loans with similar attributes, and selected loss estimate models for each identified loan portfolio segment. Management measured historical loss rates for each portfolio segment. Management also segmented debt securities held to maturity, selected methods to estimate losses for each segment, and measured a loss estimate. Agency mortgage-backed securities were assigned no credit loss allowance due to the perceived backing of government sponsored entities. Municipal securities were evaluated for risk of default based on credit rating and remaining term to maturity using Moody’s risk of default factors; Moody’s loss upon default factors were applied to the assumed defaulted principal amounts to estimate the amount for credit loss allowance. The adjustment to the allowance for credit losses was recorded through an offsetting after-tax adjustment to shareholders’ equity. The implementing entry increased allowance for credit losses by $2,017 thousand, reduced allowance for credit losses for unfunded credit commitments by $2,107 thousand and increased retained earnings by $52 thousand.

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 (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 (loans)	$	19,484	$	2,017		$	21,501
Allowance for credit losses (debt securities held to maturity)		-		16			16
Labilities
Allowance for credit losses for unfunded commitments		2,160		(2,107	)		53

Debt Securities. Debt securities consist of securities of government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities and asset-backed securities. Securities transactions are recorded on a trade date basis. The Company classifies its debt securities in one of three categories: trading, available for sale or held to maturity. Trading securities are bought and held principally for the purpose of selling them in the near term. Trading securities are recorded at fair value with unrealized gains and losses included in net income. Held to maturity debt securities are those securities which the Company has the ability and intent to hold until maturity. Held to maturity debt securities are recorded at cost, adjusted for the amortization of premiums or accretion of discounts. Securities not included in trading or held to maturity are classified as available for sale debt securities. Available for sale debt securities are recorded at fair value. Unrealized gains and losses, net of the related tax effect, on available for sale debt securities are included in accumulated other comprehensive income. Accrued interest is recorded within other assets and reversed against interest income if it is not received.

The Company utilizes third-party sources to value its investment securities; securities individually valued using quoted prices in active markets are classified as Level 1 assets in the fair value hierarchy, and securities valued using quoted prices in active markets for similar securities (commonly referred to as “matrix” pricing) are classified as Level 2 assets in the fair value hierarchy. The Company validates the reliability of third-party provided values by comparing individual security pricing for securities between more than one third-party source. When third-party information is not available, valuation adjustments are estimated in good faith by Management and classified as Level 3 in the fair value hierarchy.

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) and other regulatory guidance when performing investment security pre-purchase analysis or evaluating investment securities for credit loss. Credit ratings issued by recognized rating agencies are considered in the Company’s analysis only as a guide to the historical default rate associated with similarly-rated bonds.

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 share common risk characteristics with any of the pools of debt securities is individually evaluated and a reserve for credit losses is established at the difference between the discounted value of the expected future cash flows, based on the original effective interest rate, and the recorded amortized cost basis of the security. For certain classes of debt securities, the bank considers the history of credit losses, current conditions and reasonable and supportable forecasts, which may indicate that the expectation that nonpayment of the amortized cost basis is or continues to be zero. Therefore, for those securities, the bank does not record expected credit losses.

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 been recorded through an allowance for credit losses, such as declines due to changes in market interest rates, are recorded through other comprehensive income, net of applicable taxes. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally considered to not be related to credit when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell nor does it believe it will be required to sell the security before the recovery of its cost basis.

If the Company intends to sell a debt security or more likely than not will be required to sell the security before recovery of its amortized cost basis, the debt security is written down to its fair value and the write down is charged against the allowance for credit losses with any incremental loss reported in earnings.

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 publicly traded, such as Visa Class B common stock, and securities acquired to meet regulatory requirements, such as Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. When the review indicates that impairment exists the asset value is reduced to fair value. The Company recognizes the estimated loss in noninterest income.

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. Loans which are more than 90 days delinquent with respect to interest or principal, unless they are well secured and in the process of collection, and other loans on which full recovery of principal or interest is in doubt, are placed on nonaccrual status. Interest previously accrued on loans placed on nonaccrual status is charged against interest income. In addition, some loans secured by real estate and commercial loans to borrowers experiencing financial difficulties are placed on nonaccrual status even though the borrowers continue to repay the loans as scheduled. When the ability to fully collect nonaccrual loan principal is in doubt, payments received are applied against the principal balance of the loans on a cost-recovery method until such time as full collection of the remaining recorded balance is expected. Any additional interest payments received after that time are recorded as interest income on a cash basis. Nonaccrual loans are reinstated to accrual status when none of the loan’s principal and interest is past due and improvements in credit quality eliminate doubt as to the full collectability of both principal and interest, or the loan otherwise becomes well secured and in the process of collection. Certain consumer loans or auto receivables are charged off against the allowance for credit losses when they become 120 days past due.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually, including certain classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and “troubled debt restructured” loans. In general, a restructuring constitutes a troubled debt restructuring when the Company, for reasons related to a borrower’s financial difficulties, grants a concession to the borrower it would not otherwise consider. The Company follows its general nonaccrual policy for troubled debt restructurings. Performing troubled debt restructurings are reinstated to accrual status when improvements in credit quality eliminate the doubt as to full collectability of both principal and interest. Under the Coronavirus Aid, Relief, and Economic Security Act, banks may elect to deem that loan modifications do not result in TDRs if they are (1) related to the novel coronavirus disease; (2) executed on a loan that was not more than 30 days past due as of December 31, 2019; and (3) executed between March 1, 2020, and the earlier of (A) 60 days after the date of termination of the National Emergency or (B) December 31, 2020. At March 31, 2020, the Company has not made any such modifications.

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 reflected in the historical loss rates that are attributable to national or local economic or industry trends which have occurred but have not yet been recognized in past loan charge-off history, estimated losses based on management’s reasonable and supportable expectation of economic trends over a forecast horizon of up to two years, and other factors that impact credit loss expectations that are not reflected in the historical loss rates. Other factors include, but are not limited to, the effectiveness of the Company’s loan review system, adequacy of lending Management and staff, loan policies and procedures, problem loan trends, and concentrations of credit. At the end of the two-year forecast period loss rates revert immediately to the historical loss rates. The results of this analysis are applied to the amortized cost of the loans included within each pool.

Loans that do not share risk characteristics with other loans in the pools are evaluated individually. The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 thousand, and all “troubled debt restructured” loans individually for credit loss. A loan is considered ‘collateral-dependent’ when the borrower is experiencing financial difficulty and repayment is expected to be provided substantially through the operation or sale of the collateral. A credit loss reserve for collateral-dependent loans is established at the difference between the amortized cost basis in the loan and the fair value of the underlying collateral adjusted for costs to sell. For other individually evaluated loans that are not collateral dependent, a credit loss reserve is established at the difference between the amortized cost basis in the loan and the present value of expected future cash flows discounted at the loan’s effective interest rate.

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 unconditionally cancellable by the Company and applying the loss factors used in the allowance for credit loss methodology to estimate the liability for credit losses related to unfunded commitments. No credit loss estimate is reported for off-balance-sheet credit exposures that are unconditionally cancellable by the Company or for undrawn amounts under such arrangements that may be drawn prior to the cancellation of the arrangement.

FASB ASU 2018-13, Fair Value Measurements (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement, was issued August 2018. The ASU is part of the disclosure framework project, where the primary focus is to improve the effectiveness of disclosures in the financial statements. The ASU removes, modifies and adds disclosure requirements related to Fair Value Measurements.

The provisions of the ASU are effective January 1, 2020 with the option to early adopt any removed or modified disclosures upon issuance of the ASU. The Company early adopted the provisions to remove and/or modify relevant disclosures in the “Fair Value Measurements” note to the unaudited consolidated financial statements. The requirement to include additional disclosures was adopted by the Company January 1, 2020. The additional disclosures did not affect the financial results upon adoption.

Recently Issued Accounting Standards

FASB ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, was issued December 2019. The ASU is intended to simplify various aspects related to accounting for income taxes, eliminates certain exceptions to the general principles in ASC Topic 740 related to intra-period tax allocation, simplifies when companies recognize deferred taxes in an interim period, and clarifies certain aspects of the current guidance to promote consistent application. This guidance effective for public entities for fiscal years beginning after December 15, 2020, and for interim period within those fiscal years, with early adoption permitted. This guidance is applicable to the Company’s fiscal year beginning January 1, 2021. The Company is currently evaluating the potential effects of this guidance on its consolidated financial statements.

FASB ASU 2020-04, Reference Rate Reform (Topic 848): Simplifying the Accounting for Income Taxes, was issued March 2020. The ASU provides optional expedients and exceptions for applying GAAP to loan and lease agreements, derivative contracts, and other transactions affected by the anticipated transition away from LIBOR toward new interest rate benchmarks. For transactions that are modified because of reference rate reform and that meet certain scope guidance (i) modifications of loan agreements should be accounted for by prospectively adjusting the effective interest rate and the modification will be considered "minor" so that any existing unamortized origination fees/costs would carry forward and continue to be amortized and (ii) modifications of lease agreements should be accounted for as a continuation of the existing agreement with no reassessments of the lease classification and the discount rate or remeasurements of lease payments that otherwise would be required for modifications not accounted for as separate contracts. ASU 2020-04 also provides numerous optional expedients for derivative accounting. ASU 2020-04 is effective March 12, 2020 through December 31, 2022. An entity may elect to apply ASU 2020-04 for contract modifications as of January 1, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. Once elected for a Topic or an Industry Subtopic within the Codification, the amendments in this ASU must be applied prospectively for all eligible contract modifications for that Topic or Industry Subtopic. The Company is currently evaluating the impacts of this ASU and has not yet determined whether LIBOR transition and this ASU will have material effects on our business operations and consolidated financial statements.

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Note 3 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt securities available for sale, amortized cost	$ 3,210,447	$ 3,041,860
Debt securities available for sale, gross unrealized gains	56,139	43,857
Debt securities available for sale, gross unrealized losses	(55,897)	(6,871)
Debt securities available for sale	3,210,689	3,078,846
Held to maturity	681,837	738,072
Debt securities held to maturity, gross unrecognized gains	14,178	8,460
Debt securities held to maturity, gross unrecognized losses	(155)	(2,236)
Debt securities held to maturity, fair value	695,860	744,296
Debt securities, amortized cost	3,892,284	3,779,932
Debt securities, gross unrecognized gains	70,317	52,317
Debt securities, gross unrecognized losses	(56,052)	(9,107)
Debt securities, fair value	3,906,549	3,823,142
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	883,716	934,592
Debt securities available for sale, gross unrealized gains	27,425	10,996
Debt securities available for sale, gross unrealized losses	(7)	(5,838)
Debt securities available for sale	911,134	939,750
Held to maturity	331,069	353,937
Debt securities held to maturity, gross unrecognized gains	7,889	766
Debt securities held to maturity, gross unrecognized losses	(77)	(2,235)
Debt securities held to maturity, fair value	338,881	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	3,674	3,711
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	(8)	(3)
Debt securities available for sale	3,666	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	521	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	521	544
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	153,914	159,527
Debt securities available for sale, gross unrealized gains	3,137	3,656
Debt securities available for sale, gross unrealized losses	(196)	(44)
Debt securities available for sale	156,855	163,139
Held to maturity	348,600	381,781
Debt securities held to maturity, gross unrecognized gains	6,282	7,672
Debt securities held to maturity, gross unrecognized losses	(2)	(1)
Debt securities held to maturity, fair value	354,880	389,452
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	2,112,100	1,805,479
Debt securities available for sale, gross unrealized gains	25,527	29,183
Debt securities available for sale, gross unrealized losses	(55,659)	(879)
Debt securities available for sale	2,081,968	1,833,783
Collateralized Loan Obligations [Member]
Debt securities available for sale, amortized cost	56,522	6,748
Debt securities available for sale, gross unrealized gains	50	7
Debt securities available for sale, gross unrealized losses	(27)	0
Debt securities available for sale	56,545	6,755
Non-agency Residential MBS [Member]
Held to maturity	2,168	2,354
Debt securities held to maturity, gross unrecognized gains	7	22
Debt securities held to maturity, gross unrecognized losses	(76)	0
Debt securities held to maturity, fair value	$ 2,099	$ 2,376

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Note 3 - Investment Securities - Credit Quality (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Held to maturity	$ 681,837	$ 738,072
AAA/AA/A [Member]
Held to maturity	680,687
BBB [Member]
Held to maturity	102
BB/B [Member]
Held to maturity	1,048
Agency Residential MBS [Member]
Held to maturity	331,069	353,937
Agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	331,069
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	2,168	2,354
Non-agency Residential MBS [Member] | AAA/AA/A [Member]
Held to maturity	1,120
Non-agency Residential MBS [Member] | BBB [Member]
Held to maturity	0
Non-agency Residential MBS [Member] | BB/B [Member]
Held to maturity	1,048
US States and Political Subdivisions Debt Securities [Member]
Held to maturity	348,600	$ 381,781
US States and Political Subdivisions Debt Securities [Member] | AAA/AA/A [Member]
Held to maturity	348,498
US States and Political Subdivisions Debt Securities [Member] | BBB [Member]
Held to maturity	102
US States and Political Subdivisions Debt Securities [Member] | BB/B [Member]
Held to maturity	$ 0

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Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Goodwill	$ 121,673	$ 121,673

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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Operating Activities:
Net income		$ 16,962	$ 19,646
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion		6,304	4,809
Credit loss provision		4,300	0
Net amortization of deferred net loan fees		(18)	(215)
(Increase) decrease in interest income receivable		(201)	1,887
Increase in income taxes payable		4,572	1,575
Decrease in deferred tax asset		879	3,175
Increase in other assets		(3,625)	(1,952)
Stock option compensation expense		525	541
Increase in interest expense payable		(10)	(8)
Increase (decrease) in other liabilities		24,743	(6,013)
Securities gains		0	(24)
Net Cash Provided by Operating Activities		54,451	23,437
Investing Activities:
Net repayments of loans		4,545	1,836
Purchases of debt securities available for sale		(438,122)	(219,414)
Proceeds from sale/maturity/calls of debt securities available for sale		266,561	210,429
Proceeds from maturity/calls of debt securities held to maturity		55,112	57,461
Purchases of premises and equipment		(1,796)	(393)
Proceeds from sale of foreclosed assets		0	307
Net Cash (Used in) Provided by Investing Activities		(113,700)	50,226
Financing Activities:
Net change in deposits		(13,195)	(74,255)
Net change in short-term borrowings		21,736	7,070
Exercise of stock options/issuance of shares		2,266	5,771
Retirement of common stock		(9,247)	0
Common stock dividends paid		(11,104)	(10,745)
Net Cash Used in Financing Activities		(9,544)	(72,159)
Net Change In Cash and Due from Banks		(68,793)	1,504
Cash and Due from Banks at Beginning of Period		373,421	420,284
Cash and Due from Banks at End of Period		304,628	421,788
Supplemental disclosure of noncash activities:
Right-of-use assets acquired in exchange for operating lease liabilities		0	19,444
Amount recognized upon initial adoption of ASU 2016-02 included above		0	15,325
Loan collateral transferred to other real estate owned	[1]	0	0
Securities purchases pending settlement		607	0
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities		1,659	1,750
Interest paid for the period		432	486
Income tax payments for the period		$ 0	$ 0

[1] Federal Deposit Insurance Corporation ("FDIC")

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Note 6 - Other Assets and Other Liabilities - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Investment loss included in pre-tax income	$ 600	$ 600
Tax credits recognized in provision for income taxes	$ 225	$ 266

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Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest and Fee Income:
Loans	$ 13,809	$ 14,797
Equity securities	103	98
Debt securities available for sale	21,315	17,521
Debt securities held to maturity	3,908	5,329
Interest-bearing cash	856	1,738
Total Interest and Fee Income	39,991	39,483
Interest Expense:
Deposits	434	485
Short-term borrowed funds	8	9
Total Interest Expense	442	494
Net Interest and Fee Income	39,549	38,989
Provision for Credit Losses	4,300	0
Net Interest and Fee Income After Provision For Credit Losses	35,249	38,989
Noninterest Income:
Securities gains	0	24
Other noninterest income	1,587	958
Total Noninterest Income	11,648	11,579
Noninterest Expense:
Salaries and related benefits	13,018	13,108
Occupancy and equipment	4,932	5,048
Outsourced data processing services	2,405	2,369
Courier service	491	442
Professional fees	389	665
Amortization of identifiable intangibles	73	310
Other noninterest expense	3,356	3,241
Total Noninterest Expense	24,664	25,183
Income Before Income Taxes	22,233	25,385
Provision for income taxes	5,271	5,739
Net Income	$ 16,962	$ 19,646
Average Common Shares Outstanding (in shares)	27,068	26,841
Average Diluted Common Shares Outstanding (in shares)	27,139	26,912
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.63	$ 0.73
Diluted earnings (in dollars per share)	0.63	0.73
Dividends paid (in dollars per share)	$ 0.41	$ 0.40
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 4,248	$ 4,504
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,358	2,558
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,468	1,507
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	777	717
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	579	633
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	506	577
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 125	$ 101

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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	Mar. 31, 2020	Dec. 31, 2019
Loans	$ 1,121,243	$ 1,126,664
Pass [Member]
Loans	1,097,507	1,103,164
Substandard [Member]
Loans	23,109	22,798
Doubtful [Member]
Loans	325	308
Unlikely to be Collected Financing Receivable [Member]
Loans	302	394
Commercial Portfolio Segment [Member]
Loans	221,836	222,085
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	213,241	213,542
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	8,595	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	579,319	578,758
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	567,966	567,525
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	11,353	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	2,214	1,618
Construction Portfolio Segment [Member] | Pass [Member]
Loans	2,214	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	29,924	32,748
Residential Portfolio Segment [Member] | Pass [Member]
Loans	28,512	31,055
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	1,412	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	287,950	291,455
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	285,574	289,424
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,749	1,329
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	325	308
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 302	$ 394

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Note 4 - Loans, Allowance for Loan Losses/Credit Losses and Other Real Estate Owned - Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Number of Contracts	9	9
Pre-Modification Carrying Value	$ 8,886	$ 8,886
Financing Receivable, Troubled Debt Restructuring	6,362	6,713
Period-End Individual Impairment Allowance	$ 16	$ 11
Commercial Portfolio Segment [Member]
Number of Contracts	2	2
Pre-Modification Carrying Value	$ 278	$ 278
Financing Receivable, Troubled Debt Restructuring	18	32
Period-End Individual Impairment Allowance	$ 16	$ 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	6,156	6,492
Period-End Individual Impairment Allowance	$ 0	$ 0
Residential Portfolio Segment [Member]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 241	$ 241
Financing Receivable, Troubled Debt Restructuring	188	189
Period-End Individual Impairment Allowance	$ 0	$ 0

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Note 11 - Earnings Per Common Share - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 16,962	$ 19,646
Weighted average number of common shares outstanding - basic (in shares)	27,068	26,841
Basic earnings per common share (in dollars per share)	$ 0.63	$ 0.73
Add common stock equivalents for options (in shares)	71	71
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	27,139	26,912
Diluted earnings per common share (in dollars per share)	$ 0.63	$ 0.73

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Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Fair Value	$ 9,645	$ 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	9,645	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	5,641	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	188	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	5,641	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	$ 188	$ 190

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Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Noninterest-bearing deposits	$ 2,183,283	$ 2,240,112
Interest-bearing:
Transaction	936,516	931,888
Savings	1,514,431	1,471,284
Time deposits less than $100 thousand	86,313	88,355
Time deposits $100 thousand through $250 thousand	53,335	54,874
Time deposits more than $250 thousand	25,548	26,108
Total deposits	$ 4,799,426	$ 4,812,621

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Note 7 - Goodwill and Identifiable Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Goodwill [Table Text Block]

	At March 31, 2020		At December 31, 2019
	(In thousands)
Goodwill	$	121,673	$	121,673

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	At March 31, 2020					At December 31, 2019
	Gross					Gross
	Carrying		Accumulated			Carrying		Accumulated
	Amount		Amortization			Amount		Amortization
	(In thousands)
Core deposit intangibles	$	56,808	$	(55,490	)	$	56,808	$	(55,417	)

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

	Total
	Core
	Deposit
	Intangibles
	(In thousands)
For the three months ended March 31, 2020 (actual)	$	73
Estimate for the remainder of year ending December 31, 2020		214
Estimate for year ending December 31, 2021		269
2022		252
2023		236
2024		222
2025		125

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Note 2 - Accounting Policies (Tables)

3 Months Ended

Mar. 31, 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 (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 (loans)	$	19,484	$	2,017		$	21,501
Allowance for credit losses (debt securities held to maturity)		-		16			16
Labilities
Allowance for credit losses for unfunded commitments		2,160		(2,107	)		53