Westamerica Bancorporation (WABC) 10-Q 4 Nov 19 2019 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 29, 2019
Document Information [Line Items]
Entity Central Index Key	0000311094
Entity Registrant Name	WESTAMERICA BANCORPORATION
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2019
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
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
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
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	WABC
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		27,055,059

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Cash and due from banks	$ 415,639	$ 420,284
Equity securities	0	1,747
Debt securities available for sale	2,983,767	2,654,670
Debt securities held to maturity, with fair values of: $799,241 at September 30, 2019 and $971,445 at December 31, 2018	793,216	984,609
Loans	1,133,229	1,207,202
Allowance for loan losses	(19,828)	(21,351)
Loans, net of allowance for loan losses	1,113,401	1,185,851
Other real estate owned	43	350
Premises and equipment, net	34,080	34,507
Identifiable intangibles, net	1,464	1,929
Goodwill	121,673	121,673
Other assets	152,772	162,906
Total Assets	5,616,055	5,568,526
Liabilities:
Noninterest-bearing deposits	2,265,640	2,243,251
Interest-bearing deposits	2,530,983	2,623,588
Total deposits	4,796,623	4,866,839
Short-term borrowed funds	45,646	51,247
Other liabilities	60,408	34,849
Total Liabilities	4,902,677	4,952,935
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 27,014 at September 30, 2019 and 26,730 at December 31, 2018	462,653	448,351
Deferred compensation	771	1,395
Accumulated other comprehensive income (loss)	20,454	(39,996)
Retained earnings	229,500	205,841
Total Shareholders' Equity	713,378	615,591
Total Liabilities and Shareholders' Equity	$ 5,616,055	$ 5,568,526

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ / shares in Thousands, $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt securities held to maturity, fair value	$ 799,241	$ 971,445
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)	27,014	26,730
Common stock, outstanding (in shares)	27,014	26,730

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Interest and Loan Fee Income:
Loans	$ 14,431	$ 14,593	$ 44,050	$ 44,247
Equity securities	92	85	289	256
Debt securities available for sale	18,736	15,644	54,080	43,518
Debt securities held to maturity	4,535	5,931	14,788	18,321
Interest-bearing cash	1,901	2,361	5,597	5,933
Total Interest and Loan Fee Income	39,695	38,614	118,804	112,275
Interest Expense:
Deposits	447	518	1,410	1,417
Short-term borrowed funds	8	9	27	28
Total Interest Expense	455	527	1,437	1,445
Net Interest and Loan Fee Income	39,240	38,087	117,367	110,830
Provision for Loan Losses	0	0	0	0
Net Interest and Loan Fee Income After Provision for Loan Losses	39,240	38,087	117,367	110,830
Noninterest Income:
Life insurance gains	0	585	433	585
Equity securities(losses) gains	0	(16)	50	(66)
Other noninterest income	1,051	1,007	2,897	2,988
Total Noninterest Income	11,809	12,528	35,676	36,252
Noninterest Expense:
Salaries and related benefits	12,559	13,415	38,757	39,952
Occupancy and equipment	5,199	4,809	15,163	14,365
Outsourced data processing services	2,374	2,292	7,110	6,930
Professional fees	645	621	1,791	2,277
Courier service	456	448	1,349	1,333
Amortization of identifiable intangibles	76	451	465	1,474
Loss contingency	0	3,500	553	3,500
Other noninterest expense	2,724	3,830	9,589	11,298
Total Noninterest Expense	24,033	29,366	74,777	81,129
Income Before Income Taxes	27,016	21,249	78,266	65,953
Provision for income taxes	6,626	4,256	18,605	13,444
Net Income	$ 20,390	$ 16,993	$ 59,661	$ 52,509
Average Common Shares Outstanding (in shares)	26,986	26,701	26,924	26,622
Average Diluted Common Shares Outstanding (in shares)	27,027	26,815	26,976	26,736
Per Common Share Data:
Basic earnings (in dollars per share)	$ 0.76	$ 0.64	$ 2.22	$ 1.97
Diluted earnings (in dollars per share)	0.75	0.63	2.21	1.96
Dividends paid (in dollars per share)	$ 0.41	$ 0.40	$ 1.22	$ 1.20
Deposit Account [Member]
Noninterest Income:
Noninterest income revenue	$ 4,510	$ 4,615	$ 13,508	$ 14,012
Credit Card, Merchant Discount [Member]
Noninterest Income:
Noninterest income revenue	2,494	2,464	7,708	7,190
Debit Card [Member]
Noninterest Income:
Noninterest income revenue	1,641	1,656	4,789	4,959
Fiduciary and Trust [Member]
Noninterest Income:
Noninterest income revenue	733	733	2,199	2,202
ATM Processing Fees [Member]
Noninterest Income:
Noninterest income revenue	725	687	2,080	2,049
Financial Service, Other [Member]
Noninterest Income:
Noninterest income revenue	580	665	1,742	1,946
Financial Services Commission [Member]
Noninterest Income:
Noninterest income revenue	$ 75	$ 132	$ 270	$ 387

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 20,390	$ 16,993	$ 59,661	$ 52,509
Other comprehensive income (loss):
Changes in unrealized gains (losses) on debt securities available for sale	10,407	(5,915)	85,822	(47,915)
Deferred tax (expense) benefit	(3,077)	1,749	(25,372)	14,164
Changes in unrealized gains (losses) on debt securities available for sale, net of tax	7,330	(4,166)	60,450	(33,751)
Total comprehensive income	$ 27,720	$ 12,827	$ 120,111	$ 18,758

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Accumulated Deferred Compensation [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2017	26,425
Balance at Dec. 31, 2017	$ 431,734	$ 1,533	$ (16,832)	$ 173,804	$ 590,239
Net income for the period				52,509	52,509
Other comprehensive income (loss)			(33,751)		(33,751)
Exercise of stock options (in shares)	289
Exercise of stock options	$ 13,245				13,245
Stock based compensation	1,575				1,575
Stock awarded to employees	99				99
Dividends				(31,944)	(31,944)
Restricted stock activity	$ 1,281	(138)			1,143
Stock awarded to employees (in shares)	2
Cumulative effect at Dec. 31, 2017			142	(142)	0
Adjusted Balance (in shares) at Dec. 31, 2017	26,425
Adjusted Balance at Dec. 31, 2017	$ 431,734	1,533	(16,690)	173,662	590,239
Restricted stock activity (in shares)	20
Retirement of common stock (in shares)	(9)
Retirement of common stock	$ (149)			(375)	(524)
Reclass stranded tax effects resulting from the Tax Cuts and Jobs Act			(3,625)	3,625
Balance (in shares) at Sep. 30, 2018	26,727
Balance at Sep. 30, 2018	$ 447,785	1,395	(54,066)	197,477	592,591
Balance (in shares) at Jun. 30, 2018	26,649
Balance at Jun. 30, 2018	$ 443,338	1,533	(49,900)	191,167	586,138
Net income for the period				16,993	16,993
Other comprehensive income (loss)			(4,166)		(4,166)
Exercise of stock options (in shares)	77
Exercise of stock options	$ 3,762				3,762
Stock based compensation	525				525
Stock awarded to employees	22				22
Dividends				(10,683)	(10,683)
Restricted stock activity	$ 138	(138)
Stock awarded to employees (in shares)	1
Balance (in shares) at Sep. 30, 2018	26,727
Balance at Sep. 30, 2018	$ 447,785	1,395	(54,066)	197,477	592,591
Balance (in shares) at Dec. 31, 2018	26,730
Balance at Dec. 31, 2018	$ 448,351	1,395	(39,996)	205,841	615,591
Net income for the period				59,661	59,661
Other comprehensive income (loss)			60,450		60,450
Exercise of stock options (in shares)	222
Exercise of stock options	$ 11,177				11,177
Stock based compensation	1,484				1,484
Stock awarded to employees	80				80
Dividends				(32,849)	(32,849)
Restricted stock activity	$ 1,697	(624)			1,073
Stock awarded to employees (in shares)	1
Cumulative effect at Dec. 31, 2018				(2,801)	(2,801)
Adjusted Balance (in shares) at Dec. 31, 2018	26,730
Adjusted Balance at Dec. 31, 2018	$ 448,351	1,395	(39,996)	203,040	612,790
Shares issued from stock warrant exercise, net of repurchase (in shares)	51
Restricted stock activity (in shares)	18
Retirement of common stock (in shares)	(8)
Retirement of common stock	$ (136)			(352)	(488)
Balance (in shares) at Sep. 30, 2019	27,014
Balance at Sep. 30, 2019	$ 462,653	771	20,454	229,500	713,378
Balance (in shares) at Jun. 30, 2019	26,962
Balance at Jun. 30, 2019	$ 459,369	771	13,124	220,173	693,437
Net income for the period				20,390	20,390
Other comprehensive income (loss)			7,330		7,330
Exercise of stock options (in shares)	52
Exercise of stock options	$ 2,867				2,867
Stock based compensation	402				402
Stock awarded to employees	$ 15				15
Dividends				(11,063)	(11,063)
Balance (in shares) at Sep. 30, 2019	27,014
Balance at Sep. 30, 2019	$ 462,653	$ 771	$ 20,454	$ 229,500	$ 713,378

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Dividends per share (in dollars per share)	$ 0.41	$ 0.40	$ 1.22	$ 1.2

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Operating Activities:
Net income	$ 59,661	$ 52,509
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,178	18,964
Provision for loan losses	0	0
Net amortization of deferred loan fees	(215)	(181)
Decrease (increase) in interest income receivable	323	(177)
Increase in other assets	(2,073)	(1,896)
(Decrease) increase in income taxes payable	(3,386)	7,760
Decrease (increase) in net deferred tax asset	6,386	(1,345)
Stock option compensation expense	1,484	1,575
Increase in interest expense payable	19	5
(Decrease) increase in other liabilities	(12,233)	3,793
Life insurance gains	(433)	(585)
Equity securities (gains) losses	(50)	66
Net writedown of premises and equipment	0	3
Net gain on sale of foreclosed assets	0	(94)
Writedown of foreclosed assets	0	27
Net Cash Provided by Operating Activities	64,661	80,424
Investing Activities:
Net repayments of loans	73,026	91,594
Proceeds from life insurance policies	1,273	1,183
Purchases of debt securities available for sale	(732,690)	(634,113)
Proceeds from sale of equity securities	1,797	0
Proceeds from sale/maturity/calls of debt securities available for sale	502,928	290,663
Proceeds from maturity/calls of debt securities held to maturity	184,525	127,578
Purchases of premises and equipment	(2,495)	(2,830)
Proceeds from sale of foreclosed assets	307	873
Net Cash Provided by (Used in) Investing Activities	28,671	(125,052)
Financing Activities:
Net change in deposits	(70,216)	8,224
Net change in short-term borrowings	(5,601)	3,285
Exercise of stock options	11,177	13,245
Retirement of common stock	(488)	(524)
Common stock dividends paid	(32,849)	(31,944)
Net Cash Used in Financing Activities	(97,977)	(7,714)
Net Change In Cash and Due from Banks	(4,645)	(52,342)
Cash and Due from Banks at Beginning of Period	420,284	575,002
Cash and Due from Banks at End of Period	415,639	522,660
Supplemental disclosure of non cash activities:
Right-of-use assets acquired in exchange for operating lease liabilities	23,587	0
Amount recognized upon initial adoption of ASU 2016-02 included above	15,325	0
Loan collateral transferred to other real estate owned	0	0
Securities purchases pending settlement	20,114	0
Supplemental disclosure of cash flow activities:
Cash paid for amounts included in operating lease liabilities	5,123	0
Interest paid for the period	1,417	1,440
Income tax payments for the period	$ 16,021	$ 7,028

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1: The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the three nine September 30, 2019 not 10 December 31, 2018.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Significant Accounting Policies [Text Block]	Note 2: The most significant accounting policies followed by the Company are presented in Note 1 10 December 31, 2018. Application of these principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not third Certain amounts in prior periods have been reclassified to conform to the current presentation. Recently Adopted Accounting Standards In the nine September 30, 2019, FASB ASU 2016 02, Leases (Topic 842 February 25, 2016. January 1, 2019, one not FASB ASU 2017 08 Receivables – Non-Refundable Fees and Other Costs (Subtopic 310 20 March 2017. not The Company adopted the ASU provisions on January 1, 2019. not FASB ASU 2017 12 Derivatives and Hedging (Topic 815 August 2017. one The Company adopted the ASU provisions on January 1, 2019. not may not one Recently Issued Accounting Standards FASB ASU 2016 13, Financial Instruments – Credit Losses (Topic 326 June 16, 2016. The Company will be required to adopt the ASU provisions on January 1, 2020. December 31, 2019. FASB ASU 2018 13 Fair Value Measurements (Topic 820 August 2018. The provisions of the ASU are effective January 1, 2020 January 1, 2020. not

Note 3 - Investment Securities

Note 3 - Investment Securities	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 3: Effective January 1, 2018, 2016 01, The Company had no September 30, 2019 third 2019. December 31, 2018. nine September 30, 2019, nine September 30, 2018, 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, follows: At September 30, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 44,758 $ 68 $ - $ 44,826 Securities of U.S. Government sponsored entities 122,245 23 (160 ) 122,108 Agency residential mortgage-backed securities (MBS) 976,066 10,294 (6,609 ) 979,751 Non-agency residential MBS 101 3 - 104 Agency commercial MBS 3,748 3 - 3,751 Securities of U.S. Government entities 786 - (9 ) 777 Obligations of states and political subdivisions 161,506 3,944 (47 ) 165,403 Corporate securities 1,645,518 24,520 (2,991 ) 1,667,047 Total debt securities available for sale 2,954,728 38,855 (9,816 ) 2,983,767 Debt securities held to maturity Agency residential MBS 377,995 817 (2,647 ) 376,165 Non-agency residential MBS 2,471 62 - 2,533 Obligations of states and political subdivisions 412,750 7,804 (11 ) 420,543 Total debt securities held to maturity 793,216 8,683 (2,658 ) 799,241 Total $ 3,747,944 $ 47,538 $ (12,474 ) $ 3,783,008 At December 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 139,572 $ 5 $ (3 ) $ 139,574 Securities of U.S. Government sponsored entities 167,228 65 (3,275 ) 164,018 Agency residential MBS 883,715 595 (30,439 ) 853,871 Non-agency residential MBS 113 1 - 114 Agency commercial MBS 1,869 - (27 ) 1,842 Securities of U.S. Government entities 1,128 - (9 ) 1,119 Obligations of states and political subdivisions 180,220 1,856 (2,985 ) 179,091 Corporate securities 1,337,608 1,075 (23,642 ) 1,315,041 Total debt securities available for sale 2,711,453 3,597 (60,380 ) 2,654,670 Debt securities held to maturity Agency residential MBS 447,332 249 (14,129 ) 433,452 Non-agency residential MBS 3,387 40 - 3,427 Obligations of states and political subdivisions 533,890 3,403 (2,727 ) 534,566 Total debt securities held to maturity 984,609 3,692 (16,856 ) 971,445 Total $ 3,696,062 $ 7,289 $ (77,236 ) $ 3,626,115 The amortized cost and fair value of debt securities by contractual maturity are shown in the following table s at the dates indicated: At September 30, 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 $ 284,550 $ 285,060 $ 64,092 $ 64,247 Over 1 to 5 years 1,182,895 1,199,153 179,576 182,635 Over 5 to 10 years 471,434 478,841 169,082 173,661 Over 10 years 35,934 37,107 - - Subtotal 1,974,813 2,000,161 412,750 420,543 MBS 979,915 983,606 380,466 378,698 Total $ 2,954,728 $ 2,983,767 $ 793,216 $ 799,241 At December 31, 2018 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 $ 262,418 $ 261,976 $ 86,172 $ 86,148 Over 1 to 5 years 1,438,849 1,414,020 214,137 213,829 Over 5 to 10 years 85,817 85,877 232,544 233,515 Over 10 years 38,672 36,970 1,037 1,074 Subtotal 1,825,756 1,798,843 533,890 534,566 MBS 885,697 855,827 450,719 436,879 Total $ 2,711,453 $ 2,654,670 $ 984,609 $ 971,445 Expected maturities of mortgage-related securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates may September 30, 2019 December 31, 2018, An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At September 30, 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 2 $ 19,970 $ (30 ) 4 $ 55,794 $ (130 ) 6 $ 75,764 $ (160 ) Agency residential MBS 1 3,750 (62 ) 49 400,690 (6,547 ) 50 404,440 (6,609 ) Securities of U.S. Government entities - - - 2 777 (9 ) 2 777 (9 ) Obligations of states and political subdivisions - - - 9 4,692 (47 ) 9 4,692 (47 ) Corporate securities 16 146,067 (1,196 ) 21 166,633 (1,795 ) 37 312,700 (2,991 ) Total 19 $ 169,787 $ (1,288 ) 85 $ 628,586 $ (8,528 ) 104 $ 798,373 $ (9,816 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At September 30, 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 7 $ 13,020 $ (90 ) 57 $ 306,728 $ (2,557 ) 64 $ 319,748 $ (2,647 ) Obligations of states and political subdivisions - - - 9 8,562 (11 ) 9 8,562 (11 ) Total 7 $ 13,020 $ (90 ) 66 $ 315,290 $ (2,568 ) 73 $ 328,310 $ (2,658 ) The unrealized losses on the Company’s debt securities were caused by market conditions for these types of investments, particularly changes in risk-free interest rates. 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 $13.7 million at September 30, 2019, The Company does not not not not September 30, 2019. The fair values of the debt securities could decline in the future if the general economy deteriorates, inflation increases, credit ratings decline, the issuer’s financial condition deteriorates, or the liquidity for debt securities declines. As a result, other than temporary impairments may As of September 30, 2019 December 31, 2018, An analysis of the gross unrealized losses of the debt securities available for sale portfolio follows: Debt Securities Available for Sale At December 31, 2018 No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) U.S. Treasury securities 2 $ 54,805 $ (3 ) - $ - $ - 2 $ 54,805 $ (3 ) Securities of U.S. Government sponsored entities 1 990 (5 ) 9 117,963 (3,270 ) 10 118,953 (3,275 ) Agency residential MBS 8 107,497 (507 ) 58 640,210 (29,932 ) 66 747,707 (30,439 ) Agency commercial MBS 1 1,842 (27 ) - - - 1 1,842 (27 ) Securities of U.S. Government entities - - - 2 1,119 (9 ) 2 1,119 (9 ) Obligations of states and political subdivisions 32 26,452 (166 ) 71 67,121 (2,819 ) 103 93,573 (2,985 ) Corporate securities 38 308,157 (3,403 ) 79 722,740 (20,239 ) 117 1,030,897 (23,642 ) Total 82 $ 499,743 $ (4,111 ) 219 $ 1,549,153 $ (56,269 ) 301 $ 2,048,896 $ (60,380 ) An analysis of gross unrecognized losses of the debt securities held to maturity portfolio follows: Debt Securities Held to Maturity At December 31, 2018 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 16 $ 8,495 $ (34 ) 78 $ 412,574 $ (14,095 ) 94 $ 421,069 $ (14,129 ) Non-agency residential MBS 1 26 - - - - 1 26 - Obligations of states and political subdivisions 97 83,633 (271 ) 142 151,546 (2,456 ) 239 235,179 (2,727 ) Total 114 $ 92,154 $ (305 ) 220 $ 564,120 $ (16,551 ) 334 $ 656,274 $ (16,856 ) The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from federal income tax: For the Three Months For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands) Taxable $ 19,586 $ 16,780 $ 56,992 $ 47,327 Tax-exempt from federal income tax 3,777 4,880 12,165 14,768 Total interest income from investment securities $ 23,363 $ 21,660 $ 69,157 $ 62,095

Note 4 - Loans, Allowance for L

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 4: At December 31, 2018, February 6, 2019. A summary of the major categories of loans outstanding is shown in the following tables at the dates indicated. At September 30, At December 31, 2019 2018 (In thousands) Commercial $ 216,273 $ 275,080 Commercial Real Estate 579,227 580,480 Construction 6,678 3,982 Residential Real Estate 35,348 44,866 Consumer Installment & Other 295,703 302,794 Total $ 1,133,229 $ 1,207,202 Changes in the accretable yield for purchased loans were as follows: For the For the Nine Months Ended Year Ended September 30, 2019 December 31, 2018 Accretable yield: (In thousands) Balance at the beginning of the period $ 182 $ 738 Reclassification from nonaccretable difference 1,103 1,119 Accretion (368 ) (1,675 ) Balance at the end of the period $ 917 $ 182 Accretion $ (368 ) $ (1,675 ) Change in FDIC indemnification - 2 (Increase) in interest income $ (368 ) $ (1,673 ) The following summarizes activity in the allowance for loan losses: Allowance for Loan Losses For the Three Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,235 $ 4,057 $ 1,117 $ 238 $ 5,418 $ 4,052 $ 20,117 (Reversal) provision (596 ) (1 ) 482 (16 ) 655 (524 ) - Chargeoffs - - - - (1,039 ) - (1,039 ) Recoveries 233 12 - - 505 - 750 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Nine Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 (Reversal) provision (1,817 ) 146 134 (647 ) 1,833 351 - Chargeoffs (71 ) - - - (3,332 ) - (3,403 ) Recoveries 449 38 - - 1,393 - 1,880 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Three Months Ended September 30, 2018 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 $ 8,275 $ 3,789 $ 210 $ 1,064 $ 5,943 $ 3,759 $ 23,040 (Reversal) provision (184 ) 372 44 (120 ) (137 ) 25 - Chargeoffs (384 ) (240 ) - - (845 ) - (1,469 ) Recoveries 103 - - - 353 - 456 Total allowance for loan losses $ 7,810 $ 3,921 $ 254 $ 944 $ 5,314 $ 3,784 $ 22,027 Allowance for Loan Losses For the Nine Months Ended September 30, 2018 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 $ 7,746 $ 3,849 $ 335 $ 995 $ 6,418 $ 3,666 $ 23,009 (Reversal) provision (863 ) 312 (81 ) (51 ) 565 118 - Chargeoffs (425 ) (240 ) - - (3,015 ) - (3,680 ) Recoveries 1,352 - - - 1,346 - 2,698 Total allowance for loan losses $ 7,810 $ 3,921 $ 254 $ 944 $ 5,314 $ 3,784 $ 22,027 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 September 30, 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 $ 2,550 $ - $ - $ - $ - $ - $ 2,550 Collectively evaluated for impairment 2,322 4,068 1,599 222 5,539 3,528 17,278 Total $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Carrying value of loans: Individually evaluated for impairment $ 8,647 $ 7,445 $ - $ 193 $ 44 $ - $ 16,329 Collectively evaluated for impairment 207,626 571,782 6,678 35,155 295,659 - 1,116,900 Total $ 216,273 $ 579,227 $ 6,678 $ 35,348 $ 295,703 $ - $ 1,133,229 Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment At December 31, 2018 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,752 $ - $ - $ - $ - $ - $ 2,752 Collectively evaluated for impairment 3,559 3,884 1,465 869 5,645 3,177 18,599 Total $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 Carrying value of loans: Individually evaluated for impairment $ 9,944 $ 8,438 $ - $ 717 $ 143 $ - $ 19,242 Collectively evaluated for impairment 265,136 572,042 3,982 44,149 302,651 - 1,187,960 Total $ 275,080 $ 580,480 $ 3,982 $ 44,866 $ 302,794 $ - $ 1,207,202 The Company’s customers are small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do not The following summarizes the credit risk profile by internally assigned grade: Credit Risk Profile by Internally Assigned Grade At September 30, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 207,350 $ 568,009 $ 6,678 $ 33,629 $ 293,893 $ 1,109,559 Substandard 8,923 11,218 - 1,719 1,395 23,255 Doubtful - - - - 111 111 Loss - - - - 304 304 Total $ 216,273 $ 579,227 $ 6,678 $ 35,348 $ 295,703 $ 1,133,229 Credit Risk Profile by Internally Assigned Grade At December 31, 2018 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 264,634 $ 567,578 $ 3,982 $ 43,112 $ 300,553 $ 1,179,859 Substandard 10,446 12,902 - 1,754 1,556 26,658 Doubtful - - - - 135 135 Loss - - - - 550 550 Total $ 275,080 $ 580,480 $ 3,982 $ 44,866 $ 302,794 $ 1,207,202 Credit risk profile reflects internally assigned grades of purchased covered loans without regard to FDIC indemnification on $5,713 thousand in loans secured by residential real estate at December 31, 2018. February 6, 2019. The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status At September 30, 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 $ 215,787 $ 339 $ 119 $ 2 $ 26 $ 216,273 Commercial real estate 574,321 729 - - 4,177 579,227 Construction 6,678 - - - - 6,678 Residential real estate 34,064 828 456 - - 35,348 Consumer installment and other 291,638 2,879 737 349 100 295,703 Total $ 1,122,488 $ 4,775 $ 1,312 $ 351 $ 4,303 $ 1,133,229 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2018 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 $ 274,045 $ 781 $ 254 $ - $ - $ 275,080 Commercial real estate 574,853 617 785 - 4,225 580,480 Construction 3,982 - - - - 3,982 Residential real estate 43,372 789 189 - 516 44,866 Consumer installment and other 297,601 3,408 1,107 551 127 302,794 Total $ 1,193,853 $ 5,595 $ 2,335 $ 551 $ 4,868 $ 1,207,202 There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at September 30, 2019 December 31, 2018. The following summarizes impaired loans: Impaired Loans At September 30, 2019 At December 31, 2018 Unpaid Unpaid Recorded Principal Related Recorded Principal Related Investment Balance Allowance Investment Balance Allowance (In thousands) With no related allowance recorded: Commercial $ 72 $ 72 $ - $ 755 $ 759 $ - Commercial real estate 7,953 9,400 - 8,438 10,373 - Residential real estate 193 224 - 717 747 - Consumer installment and other 144 178 - 270 377 - Total with no related allowance recorded 8,362 9,874 - 10,180 12,256 - With an allowance recorded: Commercial 8,600 8,600 2,550 9,189 9,189 2,752 Total with an allowance recorded 8,600 8,600 2,550 9,189 9,189 2,752 Total $ 16,962 $ 18,474 $ 2,550 $ 19,369 $ 21,445 $ 2,752 Impaired loans include troubled debt restructured loans. Impaired loans at September 30, 2019, December 31, 2018, Impaired Loans For the Three Months Ended September 30, For the Nine Months Ended September 30, 2019 2018 2019 2018 Average Recognized Average Recognized Average Recognized Average Recognized Recorded Interest Recorded Interest Recorded Interest Recorded Interest Investment Income Investment Income Investment Income Investment Income (In thousands) Commercial $ 8,701 $ 144 $ 10,426 $ 175 $ 9,404 $ 476 $ 10,671 $ 495 Commercial real estate 7,968 60 11,282 189 7,133 333 12,291 615 Residential real estate 194 4 203 4 196 10 205 12 Consumer installment and other 99 - 173 4 103 - 261 10 Total $ 16,962 $ 208 $ 22,084 $ 372 $ 16,836 $ 819 $ 23,428 $ 1,132 The following tables provide information on troubled debt restructurings: Troubled Debt Restructurings At September 30, 2019 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 3 $ 327 $ 44 $ 18 Commercial real estate 6 8,830 6,517 - Residential real estate 1 241 193 - Total 10 $ 9,398 $ 6,754 $ 18 [The remainder of this page intentionally left blank] Troubled Debt Restructurings At December 31, 2018 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 4 $ 2,274 $ 811 $ 19 Commercial real estate 8 9,237 7,568 - Residential real estate 1 241 200 - Total 13 $ 11,752 $ 8,579 $ 19 During the three nine September 30, 2019 September 30, 2018, not 12 ninety There were no September 30, 2019 December 31, 2018. There were no September 30, 2019 December 31, 2018. At September 30, 2019 December 31, 2018, December 31, 2018. September 30, 2019 December 31, 2018.

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 5: Under the California Financial Code, credit extended to any one one not not not September 30, 2019, not one September 30, 2019, 4, September 30, 2019 December 31, 2018, no no September 30, 2019,

Note 6 - Other Assets and Other

Note 6 - Other Assets and Other Liabilities	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Other Assets and Liabilities Disclosure [Text Block]	Note 6: Other assets consisted of the following: At September 30, At December 31, 2019 2018 (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 57,169 56,083 Net deferred tax asset 11,947 42,256 Right-of-use asset 19,721 - Limited partnership investments 8,143 10,219 Interest receivable 25,511 25,834 Prepaid assets 3,530 4,658 Other assets 12,524 9,629 Total other assets $ 152,772 $ 162,906 ( 1 six The net deferred tax asset at September 30, 2019 December 31, 2018 The Company owns 211 thousand shares of Visa Inc. class B common stock which have transfer restrictions; the carrying value is $-0- thousand. On September 30, 2019, September 27, 2019 September 27, 2019. September 30, 2019, third 2019. The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At September 30, 2019, December 31, 2018, September 30, 2019, 2019, 2020, 2021, 2022, 2023, 2024 2025 The amounts recognized in net income for these investments include: For the Three Months Ended For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands) Investment loss included in pre-tax income $ 600 $ 900 $ 1,800 $ 2,200 Tax credits recognized in provision for income taxes 225 336 675 1,008 Other liabilities consisted of the following: At September 30, At December 31, 2019 2018 (In thousands) Operating lease liability $ 19,721 $ - Other liabilities 40,687 34,849 Total other liabilities $ 60,408 $ 34,849 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 not not not September 30, 2019. As of September 30, 2019, September 30, 2019. not September 30, 2019. Total lease costs during the three nine September 30, 2019, not nine September 30, 2019. The following table summarizes the remaining lease payments of operating lease liabilities: Minimum At September 30, 2019 (In thousands) Remaining three months of 2019 $ 2,719 2020 6,283 2021 4,574 2022 3,632 2023 2,912 Thereafter 2,057 Total minimum lease payments 22,177 Less: discount (2,456 ) Present value of lease liability $ 19,721 Minimum future rental payments under noncancelable operating leases as of December 31, 2018, 2016 02, Minimum (In thousands) 2019 $ 5,996 2020 4,409 2021 2,741 2022 1,921 2023 1,223 Thereafter 1,044 Total minimum lease payments $ 17,334

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 7: The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not not three nine September 30, 2019 December 31, 2018. three nine September 30, 2019 December 31, 2018 The carrying values of goodwill were: At September 30, 2019 At December 31, 2018 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At September 30, 2019 At December 31, 2018 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,344 ) $ 56,808 $ (54,879 ) As of September 30, 2019, Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2019 (actual) $ 465 Estimate for the remainder of year ending December 31, 2019 73 Estimate for year ending December 31, 2020 287 2021 269 2022 252 2023 236 2024 222

Note 8 - Deposits and Borrowed

Note 8 - Deposits and Borrowed Funds	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 8: The following table provides additional detail regarding deposits. Deposits At September 30, At December 31, 2019 2018 (In thousands) Noninterest-bearing $ 2,265,640 $ 2,243,251 Interest-bearing: Transaction 910,566 929,346 Savings 1,445,210 1,498,991 Time deposits less than $100 thousand 92,300 102,654 Time deposits $100 thousand through $250 thousand 56,066 64,512 Time deposits more than $250 thousand 26,841 28,085 Total deposits $ 4,796,623 $ 4,866,839 Demand deposit overdrafts of $1,078 thousand and $980 thousand were included as loan balances at September 30, 2019 December 31, 2018, $100 three nine September 30, 2019, three nine September 30, 2018, The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2019 2018 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ 75,784 $ 73,803 Agency residential MBS 55,013 58,380 Corporate securities 115,018 91,837 Total collateral carrying value $ 245,815 $ 224,020 Total short-term borrowed funds $ 45,646 $ 51,247

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 9: The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Equity securities and debt securities available for sale are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may In accordance with the Fair Value Measurement and Disclosure topic of the FASB Accounting Standards Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three Level 1 1 Level 2 not 2 Level 3 not The Company relies on independent vendor pricing services to measure fair value for equity securities, debt securities available for sale and debt securities held to maturity. The Company employs three may not The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level 1, 2 3. Assets Recorded at Fair Value on a Recurring Basis The tables below present assets measured at fair value on a recurring basis on the dates indicated. At September 30, 2019 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale U.S. Treasury securities $ 44,826 $ 44,826 $ - $ - Securities of U.S. Government sponsored entities 122,108 - 122,108 - Agency residential MBS 979,751 - 979,751 - Non-agency residential MBS 104 - 104 - Agency commercial MBS 3,751 - 3,751 - Securities of U.S. Government entities 777 - 777 - Obligations of states and political subdivisions 165,403 - 165,403 - Corporate securities 1,667,047 - 1,667,047 - Total debt securities available for sale $ 2,983,767 $ 44,826 $ 2,938,941 $ - ( 1 no 3 nine September 30, 2019. At December 31, 2018 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Equity securities Mutual funds $ 1,747 $ - $ 1,747 $ - Total equity securities 1,747 - 1,747 - Debt securities available for sale U.S. Treasury securities 139,574 139,574 - - Securities of U.S. Government sponsored entities 164,018 - 164,018 - Agency residential MBS 853,871 - 853,871 - Non-agency residential MBS 114 - 114 - Agency commercial MBS 1,842 - 1,842 - Securities of U.S. Government entities 1,119 - 1,119 - Obligations of states and political subdivisions 179,091 - 179,091 - Corporate securities 1,315,041 - 1,315,041 - Total debt securities available for sale 2,654,670 139,574 2,515,096 - Total $ 2,656,417 $ 139,574 $ 2,516,843 $ - ( 1 no 3 December 31, 2018. Assets Recorded at Fair Value on a Nonrecurring Basis The Company may September 30, 2019 December 31, 2018, For the Nine Months Ended At September 30, 2019 September 30, 2019 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Impaired loans: Commercial 6,050 - - 6,050 - Commercial real estate 4,099 - - 4,099 - Residential real estate 193 - - 193 - Consumer installment and other 77 - - 77 (34 ) Total assets measured at fair value on a nonrecurring basis $ 10,462 $ - $ - $ 10,462 $ (34 ) For the Year Ended At December 31, 2018 December 31, 2018 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 350 $ - $ - $ 350 $ - Impaired loans: Commercial 6,437 - - 6,437 - Commercial real estate 3,870 - - 3,870 (240 ) Total assets measured at fair value on a nonrecurring basis $ 10,657 $ - $ - $ 10,657 $ (240 ) Level 3 third 3 not not Disclosures about Fair Value of Financial Instruments The following section describes the valuation methodologies used by the Company for estimating fair value of financial instruments not Cash and Due from Banks Equity Securities 2 Debt Securities Held to Maturity 1 2 Loans Deposit Liabilities no no Short-Term Borrowed Funds The tables below are a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do not may not may The Company has not not not not At September 30, 2019 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 415,639 $ 415,639 $ 415,639 $ - $ - Debt securities held to maturity 793,216 799,241 - 799,241 - Loans 1,113,401 1,178,305 - - 1,178,305 Financial Liabilities: Deposits $ 4,796,623 $ 4,794,970 $ - $ 4,621,416 $ 173,554 Short-term borrowed funds 45,646 45,646 - 45,646 - At December 31, 2018 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 420,284 $ 420,284 $ 420,284 $ - $ - Debt securities held to maturity 984,609 971,445 - 971,445 - Loans 1,185,851 1,184,770 - - 1,184,770 Financial Liabilities: Deposits $ 4,866,839 $ 4,862,668 $ - $ 4,671,588 $ 191,080 Short-term borrowed funds 51,247 51,247 - 51,247 - The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No

Note 10 - Commitments and Conti

Note 10 - Commitments and Contingent Liabilities	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 10: Loan commitments are agreements to lend to a customer provided there is no not September 30, 2019 December 31, 2018. September 30, 2019 December 31, 2018. September 30, 2019 December 31, 2018. 3 rd September 30, 2019 December 31, 2018, September 30, 2019 December 31, 2018, 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 second 2019, The Company determined that it will be obligated to provide refunds of revenue recognized in years prior to 2018 2017; second 2019,

Note 11 - Earnings Per Common S

Note 11 - Earnings Per Common Share	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 11: The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents. For the Three Months For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 20,390 $ 16,993 $ 59,661 $ 52,509 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,986 26,701 26,924 26,622 Basic earnings per common share $ 0.76 $ 0.64 $ 2.22 $ 1.97 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,986 26,701 26,924 26,622 Add common stock equivalents for options 41 114 52 114 Weighted average number of common shares outstanding - diluted (denominator) 27,027 26,815 26,976 26,736 Diluted earnings per common share $ 0.75 $ 0.63 $ 2.21 $ 1.96 For the three nine September 30, 2019, not For the three nine September 30, 2018, not

Note 12 - Income Taxes

Note 12 - Income Taxes	9 Months Ended
	Sep. 30, 2019
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 12: In the second 2019, In the second 2019,

Significant Accounting Policies

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards In the nine September 30, 2019, FASB ASU 2016 02, Leases (Topic 842 February 25, 2016. January 1, 2019, one not FASB ASU 2017 08 Receivables – Non-Refundable Fees and Other Costs (Subtopic 310 20 March 2017. not The Company adopted the ASU provisions on January 1, 2019. not FASB ASU 2017 12 Derivatives and Hedging (Topic 815 August 2017. one The Company adopted the ASU provisions on January 1, 2019. not may not one Recently Issued Accounting Standards FASB ASU 2016 13, Financial Instruments – Credit Losses (Topic 326 June 16, 2016. The Company will be required to adopt the ASU provisions on January 1, 2020. December 31, 2019. FASB ASU 2018 13 Fair Value Measurements (Topic 820 August 2018. The provisions of the ASU are effective January 1, 2020 January 1, 2020. not

Note 3 - Investment Securities

Note 3 - Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Debt Securities, Available-for-sale and Held-to-maturity [Table Text Block]	At September 30, 2019 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 44,758 $ 68 $ - $ 44,826 Securities of U.S. Government sponsored entities 122,245 23 (160 ) 122,108 Agency residential mortgage-backed securities (MBS) 976,066 10,294 (6,609 ) 979,751 Non-agency residential MBS 101 3 - 104 Agency commercial MBS 3,748 3 - 3,751 Securities of U.S. Government entities 786 - (9 ) 777 Obligations of states and political subdivisions 161,506 3,944 (47 ) 165,403 Corporate securities 1,645,518 24,520 (2,991 ) 1,667,047 Total debt securities available for sale 2,954,728 38,855 (9,816 ) 2,983,767 Debt securities held to maturity Agency residential MBS 377,995 817 (2,647 ) 376,165 Non-agency residential MBS 2,471 62 - 2,533 Obligations of states and political subdivisions 412,750 7,804 (11 ) 420,543 Total debt securities held to maturity 793,216 8,683 (2,658 ) 799,241 Total $ 3,747,944 $ 47,538 $ (12,474 ) $ 3,783,008 At December 31, 2018 Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) Debt securities available for sale U.S. Treasury securities $ 139,572 $ 5 $ (3 ) $ 139,574 Securities of U.S. Government sponsored entities 167,228 65 (3,275 ) 164,018 Agency residential MBS 883,715 595 (30,439 ) 853,871 Non-agency residential MBS 113 1 - 114 Agency commercial MBS 1,869 - (27 ) 1,842 Securities of U.S. Government entities 1,128 - (9 ) 1,119 Obligations of states and political subdivisions 180,220 1,856 (2,985 ) 179,091 Corporate securities 1,337,608 1,075 (23,642 ) 1,315,041 Total debt securities available for sale 2,711,453 3,597 (60,380 ) 2,654,670 Debt securities held to maturity Agency residential MBS 447,332 249 (14,129 ) 433,452 Non-agency residential MBS 3,387 40 - 3,427 Obligations of states and political subdivisions 533,890 3,403 (2,727 ) 534,566 Total debt securities held to maturity 984,609 3,692 (16,856 ) 971,445 Total $ 3,696,062 $ 7,289 $ (77,236 ) $ 3,626,115
Investments Classified by Contractual Maturity Date [Table Text Block]	At September 30, 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 $ 284,550 $ 285,060 $ 64,092 $ 64,247 Over 1 to 5 years 1,182,895 1,199,153 179,576 182,635 Over 5 to 10 years 471,434 478,841 169,082 173,661 Over 10 years 35,934 37,107 - - Subtotal 1,974,813 2,000,161 412,750 420,543 MBS 979,915 983,606 380,466 378,698 Total $ 2,954,728 $ 2,983,767 $ 793,216 $ 799,241 At December 31, 2018 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 $ 262,418 $ 261,976 $ 86,172 $ 86,148 Over 1 to 5 years 1,438,849 1,414,020 214,137 213,829 Over 5 to 10 years 85,817 85,877 232,544 233,515 Over 10 years 38,672 36,970 1,037 1,074 Subtotal 1,825,756 1,798,843 533,890 534,566 MBS 885,697 855,827 450,719 436,879 Total $ 2,711,453 $ 2,654,670 $ 984,609 $ 971,445
Schedule of Unrealized Loss on Investments [Table Text Block]	Debt Securities Available for Sale At September 30, 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 2 $ 19,970 $ (30 ) 4 $ 55,794 $ (130 ) 6 $ 75,764 $ (160 ) Agency residential MBS 1 3,750 (62 ) 49 400,690 (6,547 ) 50 404,440 (6,609 ) Securities of U.S. Government entities - - - 2 777 (9 ) 2 777 (9 ) Obligations of states and political subdivisions - - - 9 4,692 (47 ) 9 4,692 (47 ) Corporate securities 16 146,067 (1,196 ) 21 166,633 (1,795 ) 37 312,700 (2,991 ) Total 19 $ 169,787 $ (1,288 ) 85 $ 628,586 $ (8,528 ) 104 $ 798,373 $ (9,816 ) Debt Securities Held to Maturity At September 30, 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 7 $ 13,020 $ (90 ) 57 $ 306,728 $ (2,557 ) 64 $ 319,748 $ (2,647 ) Obligations of states and political subdivisions - - - 9 8,562 (11 ) 9 8,562 (11 ) Total 7 $ 13,020 $ (90 ) 66 $ 315,290 $ (2,568 ) 73 $ 328,310 $ (2,658 ) Debt Securities Available for Sale At December 31, 2018 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) U.S. Treasury securities 2 $ 54,805 $ (3 ) - $ - $ - 2 $ 54,805 $ (3 ) Securities of U.S. Government sponsored entities 1 990 (5 ) 9 117,963 (3,270 ) 10 118,953 (3,275 ) Agency residential MBS 8 107,497 (507 ) 58 640,210 (29,932 ) 66 747,707 (30,439 ) Agency commercial MBS 1 1,842 (27 ) - - - 1 1,842 (27 ) Securities of U.S. Government entities - - - 2 1,119 (9 ) 2 1,119 (9 ) Obligations of states and political subdivisions 32 26,452 (166 ) 71 67,121 (2,819 ) 103 93,573 (2,985 ) Corporate securities 38 308,157 (3,403 ) 79 722,740 (20,239 ) 117 1,030,897 (23,642 ) Total 82 $ 499,743 $ (4,111 ) 219 $ 1,549,153 $ (56,269 ) 301 $ 2,048,896 $ (60,380 ) Debt Securities Held to Maturity At December 31, 2018 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 16 $ 8,495 $ (34 ) 78 $ 412,574 $ (14,095 ) 94 $ 421,069 $ (14,129 ) Non-agency residential MBS 1 26 - - - - 1 26 - Obligations of states and political subdivisions 97 83,633 (271 ) 142 151,546 (2,456 ) 239 235,179 (2,727 ) Total 114 $ 92,154 $ (305 ) 220 $ 564,120 $ (16,551 ) 334 $ 656,274 $ (16,856 )
Interest Income from Investments [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands) Taxable $ 19,586 $ 16,780 $ 56,992 $ 47,327 Tax-exempt from federal income tax 3,777 4,880 12,165 14,768 Total interest income from investment securities $ 23,363 $ 21,660 $ 69,157 $ 62,095

Note 4 - Loans, Allowance for_2

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At September 30, At December 31, 2019 2018 (In thousands) Commercial $ 216,273 $ 275,080 Commercial Real Estate 579,227 580,480 Construction 6,678 3,982 Residential Real Estate 35,348 44,866 Consumer Installment & Other 295,703 302,794 Total $ 1,133,229 $ 1,207,202
Accretable Yield Reconciliation Schedule [Table Text Block]	For the For the Nine Months Ended Year Ended September 30, 2019 December 31, 2018 Accretable yield: (In thousands) Balance at the beginning of the period $ 182 $ 738 Reclassification from nonaccretable difference 1,103 1,119 Accretion (368 ) (1,675 ) Balance at the end of the period $ 917 $ 182 Accretion $ (368 ) $ (1,675 ) Change in FDIC indemnification - 2 (Increase) in interest income $ (368 ) $ (1,673 )
Financing Receivable, Current, Allowance for Credit Loss [Table Text Block]	Allowance for Loan Losses For the Three Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,235 $ 4,057 $ 1,117 $ 238 $ 5,418 $ 4,052 $ 20,117 (Reversal) provision (596 ) (1 ) 482 (16 ) 655 (524 ) - Chargeoffs - - - - (1,039 ) - (1,039 ) Recoveries 233 12 - - 505 - 750 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Nine Months Ended September 30, 2019 Consumer Commercial Residential Installment Commercial Real Estate Construction Real Estate and Other Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 (Reversal) provision (1,817 ) 146 134 (647 ) 1,833 351 - Chargeoffs (71 ) - - - (3,332 ) - (3,403 ) Recoveries 449 38 - - 1,393 - 1,880 Total allowance for loan losses $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Allowance for Loan Losses For the Three Months Ended September 30, 2018 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 $ 8,275 $ 3,789 $ 210 $ 1,064 $ 5,943 $ 3,759 $ 23,040 (Reversal) provision (184 ) 372 44 (120 ) (137 ) 25 - Chargeoffs (384 ) (240 ) - - (845 ) - (1,469 ) Recoveries 103 - - - 353 - 456 Total allowance for loan losses $ 7,810 $ 3,921 $ 254 $ 944 $ 5,314 $ 3,784 $ 22,027 Allowance for Loan Losses For the Nine Months Ended September 30, 2018 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 $ 7,746 $ 3,849 $ 335 $ 995 $ 6,418 $ 3,666 $ 23,009 (Reversal) provision (863 ) 312 (81 ) (51 ) 565 118 - Chargeoffs (425 ) (240 ) - - (3,015 ) - (3,680 ) Recoveries 1,352 - - - 1,346 - 2,698 Total allowance for loan losses $ 7,810 $ 3,921 $ 254 $ 944 $ 5,314 $ 3,784 $ 22,027
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 September 30, 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 $ 2,550 $ - $ - $ - $ - $ - $ 2,550 Collectively evaluated for impairment 2,322 4,068 1,599 222 5,539 3,528 17,278 Total $ 4,872 $ 4,068 $ 1,599 $ 222 $ 5,539 $ 3,528 $ 19,828 Carrying value of loans: Individually evaluated for impairment $ 8,647 $ 7,445 $ - $ 193 $ 44 $ - $ 16,329 Collectively evaluated for impairment 207,626 571,782 6,678 35,155 295,659 - 1,116,900 Total $ 216,273 $ 579,227 $ 6,678 $ 35,348 $ 295,703 $ - $ 1,133,229 Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment At December 31, 2018 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,752 $ - $ - $ - $ - $ - $ 2,752 Collectively evaluated for impairment 3,559 3,884 1,465 869 5,645 3,177 18,599 Total $ 6,311 $ 3,884 $ 1,465 $ 869 $ 5,645 $ 3,177 $ 21,351 Carrying value of loans: Individually evaluated for impairment $ 9,944 $ 8,438 $ - $ 717 $ 143 $ - $ 19,242 Collectively evaluated for impairment 265,136 572,042 3,982 44,149 302,651 - 1,187,960 Total $ 275,080 $ 580,480 $ 3,982 $ 44,866 $ 302,794 $ - $ 1,207,202
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade At September 30, 2019 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 207,350 $ 568,009 $ 6,678 $ 33,629 $ 293,893 $ 1,109,559 Substandard 8,923 11,218 - 1,719 1,395 23,255 Doubtful - - - - 111 111 Loss - - - - 304 304 Total $ 216,273 $ 579,227 $ 6,678 $ 35,348 $ 295,703 $ 1,133,229 Credit Risk Profile by Internally Assigned Grade At December 31, 2018 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Total (In thousands) Grade: Pass $ 264,634 $ 567,578 $ 3,982 $ 43,112 $ 300,553 $ 1,179,859 Substandard 10,446 12,902 - 1,754 1,556 26,658 Doubtful - - - - 135 135 Loss - - - - 550 550 Total $ 275,080 $ 580,480 $ 3,982 $ 44,866 $ 302,794 $ 1,207,202
Financing Receivable, Past Due [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status At September 30, 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 $ 215,787 $ 339 $ 119 $ 2 $ 26 $ 216,273 Commercial real estate 574,321 729 - - 4,177 579,227 Construction 6,678 - - - - 6,678 Residential real estate 34,064 828 456 - - 35,348 Consumer installment and other 291,638 2,879 737 349 100 295,703 Total $ 1,122,488 $ 4,775 $ 1,312 $ 351 $ 4,303 $ 1,133,229 Summary of Loans by Delinquency and Nonaccrual Status At December 31, 2018 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 $ 274,045 $ 781 $ 254 $ - $ - $ 275,080 Commercial real estate 574,853 617 785 - 4,225 580,480 Construction 3,982 - - - - 3,982 Residential real estate 43,372 789 189 - 516 44,866 Consumer installment and other 297,601 3,408 1,107 551 127 302,794 Total $ 1,193,853 $ 5,595 $ 2,335 $ 551 $ 4,868 $ 1,207,202
Impaired Financing Receivables [Table Text Block]	Impaired Loans At September 30, 2019 At December 31, 2018 Unpaid Unpaid Recorded Principal Related Recorded Principal Related Investment Balance Allowance Investment Balance Allowance (In thousands) With no related allowance recorded: Commercial $ 72 $ 72 $ - $ 755 $ 759 $ - Commercial real estate 7,953 9,400 - 8,438 10,373 - Residential real estate 193 224 - 717 747 - Consumer installment and other 144 178 - 270 377 - Total with no related allowance recorded 8,362 9,874 - 10,180 12,256 - With an allowance recorded: Commercial 8,600 8,600 2,550 9,189 9,189 2,752 Total with an allowance recorded 8,600 8,600 2,550 9,189 9,189 2,752 Total $ 16,962 $ 18,474 $ 2,550 $ 19,369 $ 21,445 $ 2,752
Impaired Financing Receivables Supplemental Schedule [Table Text Block]	Impaired Loans For the Three Months Ended September 30, For the Nine Months Ended September 30, 2019 2018 2019 2018 Average Recognized Average Recognized Average Recognized Average Recognized Recorded Interest Recorded Interest Recorded Interest Recorded Interest Investment Income Investment Income Investment Income Investment Income (In thousands) Commercial $ 8,701 $ 144 $ 10,426 $ 175 $ 9,404 $ 476 $ 10,671 $ 495 Commercial real estate 7,968 60 11,282 189 7,133 333 12,291 615 Residential real estate 194 4 203 4 196 10 205 12 Consumer installment and other 99 - 173 4 103 - 261 10 Total $ 16,962 $ 208 $ 22,084 $ 372 $ 16,836 $ 819 $ 23,428 $ 1,132
Financing Receivable, Troubled Debt Restructuring [Table Text Block]	Troubled Debt Restructurings At September 30, 2019 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 3 $ 327 $ 44 $ 18 Commercial real estate 6 8,830 6,517 - Residential real estate 1 241 193 - Total 10 $ 9,398 $ 6,754 $ 18 Troubled Debt Restructurings At December 31, 2018 Period-End Individual Number of Pre-Modification Period-End Impairment Contracts Carrying Value Carrying Value Allowance ($ in thousands) Commercial 4 $ 2,274 $ 811 $ 19 Commercial real estate 8 9,237 7,568 - Residential real estate 1 241 200 - Total 13 $ 11,752 $ 8,579 $ 19

Note 6 - Other Assets and Oth_2

Note 6 - Other Assets and Other Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Other Assets [Table Text Block]	At September 30, At December 31, 2019 2018 (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 57,169 56,083 Net deferred tax asset 11,947 42,256 Right-of-use asset 19,721 - Limited partnership investments 8,143 10,219 Interest receivable 25,511 25,834 Prepaid assets 3,530 4,658 Other assets 12,524 9,629 Total other assets $ 152,772 $ 162,906
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months Ended For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands) Investment loss included in pre-tax income $ 600 $ 900 $ 1,800 $ 2,200 Tax credits recognized in provision for income taxes 225 336 675 1,008
Other Liabilities [Table Text Block]	At September 30, At December 31, 2019 2018 (In thousands) Operating lease liability $ 19,721 $ - Other liabilities 40,687 34,849 Total other liabilities $ 60,408 $ 34,849
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	Minimum At September 30, 2019 (In thousands) Remaining three months of 2019 $ 2,719 2020 6,283 2021 4,574 2022 3,632 2023 2,912 Thereafter 2,057 Total minimum lease payments 22,177 Less: discount (2,456 ) Present value of lease liability $ 19,721
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Minimum (In thousands) 2019 $ 5,996 2020 4,409 2021 2,741 2022 1,921 2023 1,223 Thereafter 1,044 Total minimum lease payments $ 17,334

Note 7 - Goodwill and Identif_2

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Goodwill [Table Text Block]	At September 30, 2019 At December 31, 2018 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At September 30, 2019 At December 31, 2018 Gross Gross Carrying Accumulated Carrying Accumulated Amount Amortization Amount Amortization (In thousands) Core deposit intangibles $ 56,808 $ (55,344 ) $ 56,808 $ (54,879 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Total Core Deposit Intangibles (In thousands) For the nine months ended September 30, 2019 (actual) $ 465 Estimate for the remainder of year ending December 31, 2019 73 Estimate for year ending December 31, 2020 287 2021 269 2022 252 2023 236 2024 222

Note 8 - Deposits and Borrowe_2

Note 8 - Deposits and Borrowed Funds (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Deposit Liabilities, Type [Table Text Block]	Deposits At September 30, At December 31, 2019 2018 (In thousands) Noninterest-bearing $ 2,265,640 $ 2,243,251 Interest-bearing: Transaction 910,566 929,346 Savings 1,445,210 1,498,991 Time deposits less than $100 thousand 92,300 102,654 Time deposits $100 thousand through $250 thousand 56,066 64,512 Time deposits more than $250 thousand 26,841 28,085 Total deposits $ 4,796,623 $ 4,866,839
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements Overnight and Continuous At September 30, At December 31, 2019 2018 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ 75,784 $ 73,803 Agency residential MBS 55,013 58,380 Corporate securities 115,018 91,837 Total collateral carrying value $ 245,815 $ 224,020 Total short-term borrowed funds $ 45,646 $ 51,247

Note 9 - Fair Value Measureme_2

Note 9 - Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At September 30, 2019 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Debt securities available for sale U.S. Treasury securities $ 44,826 $ 44,826 $ - $ - Securities of U.S. Government sponsored entities 122,108 - 122,108 - Agency residential MBS 979,751 - 979,751 - Non-agency residential MBS 104 - 104 - Agency commercial MBS 3,751 - 3,751 - Securities of U.S. Government entities 777 - 777 - Obligations of states and political subdivisions 165,403 - 165,403 - Corporate securities 1,667,047 - 1,667,047 - Total debt securities available for sale $ 2,983,767 $ 44,826 $ 2,938,941 $ - At December 31, 2018 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (1) (In thousands) Equity securities Mutual funds $ 1,747 $ - $ 1,747 $ - Total equity securities 1,747 - 1,747 - Debt securities available for sale U.S. Treasury securities 139,574 139,574 - - Securities of U.S. Government sponsored entities 164,018 - 164,018 - Agency residential MBS 853,871 - 853,871 - Non-agency residential MBS 114 - 114 - Agency commercial MBS 1,842 - 1,842 - Securities of U.S. Government entities 1,119 - 1,119 - Obligations of states and political subdivisions 179,091 - 179,091 - Corporate securities 1,315,041 - 1,315,041 - Total debt securities available for sale 2,654,670 139,574 2,515,096 - Total $ 2,656,417 $ 139,574 $ 2,516,843 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	For the Nine Months Ended At September 30, 2019 September 30, 2019 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 43 $ - $ - $ 43 $ - Impaired loans: Commercial 6,050 - - 6,050 - Commercial real estate 4,099 - - 4,099 - Residential real estate 193 - - 193 - Consumer installment and other 77 - - 77 (34 ) Total assets measured at fair value on a nonrecurring basis $ 10,462 $ - $ - $ 10,462 $ (34 ) For the Year Ended At December 31, 2018 December 31, 2018 Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 350 $ - $ - $ 350 $ - Impaired loans: Commercial 6,437 - - 6,437 - Commercial real estate 3,870 - - 3,870 (240 ) Total assets measured at fair value on a nonrecurring basis $ 10,657 $ - $ - $ 10,657 $ (240 )
Fair Value, by Balance Sheet Grouping [Table Text Block]	At September 30, 2019 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 415,639 $ 415,639 $ 415,639 $ - $ - Debt securities held to maturity 793,216 799,241 - 799,241 - Loans 1,113,401 1,178,305 - - 1,178,305 Financial Liabilities: Deposits $ 4,796,623 $ 4,794,970 $ - $ 4,621,416 $ 173,554 Short-term borrowed funds 45,646 45,646 - 45,646 - At December 31, 2018 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 420,284 $ 420,284 $ 420,284 $ - $ - Debt securities held to maturity 984,609 971,445 - 971,445 - Loans 1,185,851 1,184,770 - - 1,184,770 Financial Liabilities: Deposits $ 4,866,839 $ 4,862,668 $ - $ 4,671,588 $ 191,080 Short-term borrowed funds 51,247 51,247 - 51,247 -

Note 11 - Earnings Per Common_2

Note 11 - Earnings Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2019
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2019 2018 2019 2018 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 20,390 $ 16,993 $ 59,661 $ 52,509 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 26,986 26,701 26,924 26,622 Basic earnings per common share $ 0.76 $ 0.64 $ 2.22 $ 1.97 Diluted earnings per common share Weighted average number of common shares outstanding - basic 26,986 26,701 26,924 26,622 Add common stock equivalents for options 41 114 52 114 Weighted average number of common shares outstanding - diluted (denominator) 27,027 26,815 26,976 26,736 Diluted earnings per common share $ 0.75 $ 0.63 $ 2.21 $ 1.96

Note 2 - Accounting Policies (D

Note 2 - Accounting Policies (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Operating Lease, Liability, Total	$ 19,721		$ 0
Operating Lease, Right-of-Use Asset	19,721		0
Debt Securities, Available-for-sale, Total	2,983,767		2,654,670
Retained Earnings (Accumulated Deficit), Ending Balance	$ 229,500		$ 205,841
Accounting Standards Update 2016-02 [Member]
Operating Lease, Liability, Total		$ 15,300
Operating Lease, Right-of-Use Asset		15,300
Accounting Standards Update 2017-08 [Member]
Debt Securities, Available-for-sale, Total		(3,100)
Retained Earnings (Accumulated Deficit), Ending Balance		$ (2,800)

Note 3 - Investment Securitie_2

Note 3 - Investment Securities (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Equity Securities, FV-NI	$ 0		$ 1,747	$ 1,800
Cumulative Effect of New Accounting Principle in Period of Adoption			(2,801)		$ 0
Unrealized Gain (Loss) on Securities	50	$ (66)
High Risk Collateralized Mortgage Obligations	0		0
Debt Securities, Available-for-sale, Amortized Cost, Total	2,954,728		2,711,453
Debt Securities, Available-for-sale, Total	2,983,767		2,654,670
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total	0
Pledged Financial Instruments, Not Separately Reported, Securities, Total	721,741		728,161
Debt Security, Corporate, US [Member]
Debt Securities, Available-for-sale, Amortized Cost, Total	1,645,518		1,337,608
Debt Securities, Available-for-sale, Total	1,667,047		1,315,041
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	$ 13,700
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption			$ (2,801)		$ (142)
Retained Earnings [Member] | Accounting Standards Update 2016-01 [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption				$ (142)

Note 3 - Investment Securitie_3

Note 3 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt securities available for sale, amortized cost	$ 2,954,728	$ 2,711,453
Debt securities available for sale, gross unrealized gains	38,855	3,597
Debt securities available for sale, gross unrealized losses	(9,816)	(60,380)
Debt securities available for sale	2,983,767	2,654,670
Debt securities held to maturity, amortized cost	793,216	984,609
Debt securities held to maturity, gross unrecognized gains	8,683	3,692
Debt securities held to maturity, gross unrecognized losses	(2,658)	(16,856)
Debt securities held to maturity, fair value	799,241	971,445
Debt securities, amortized cost	3,747,944	3,696,062
Debt securities, gross unrecognized gains	47,538	7,289
Debt securities, gross unrecognized losses	(12,474)	(77,236)
Debt securities, fair value	3,783,008	3,626,115
US Treasury Securities [Member]
Debt securities available for sale, amortized cost	44,758	139,572
Debt securities available for sale, gross unrealized gains	68	5
Debt securities available for sale, gross unrealized losses	0	(3)
Debt securities available for sale	44,826	139,574
US Government-sponsored Enterprises Debt Securities [Member]
Debt securities available for sale, amortized cost	122,245	167,228
Debt securities available for sale, gross unrealized gains	23	65
Debt securities available for sale, gross unrealized losses	(160)	(3,275)
Debt securities available for sale	122,108	164,018
Agency Residential MBS [Member]
Debt securities available for sale, amortized cost	976,066	883,715
Debt securities available for sale, gross unrealized gains	10,294	595
Debt securities available for sale, gross unrealized losses	(6,609)	(30,439)
Debt securities available for sale	979,751	853,871
Debt securities held to maturity, amortized cost	377,995	447,332
Debt securities held to maturity, gross unrecognized gains	817	249
Debt securities held to maturity, gross unrecognized losses	(2,647)	(14,129)
Debt securities held to maturity, fair value	376,165	433,452
Non-agency Residential MBS [Member]
Debt securities available for sale, amortized cost	101	113
Debt securities available for sale, gross unrealized gains	3	1
Debt securities available for sale, gross unrealized losses	0	0
Debt securities available for sale	104	114
Debt securities held to maturity, amortized cost	2,471	3,387
Debt securities held to maturity, gross unrecognized gains	62	40
Debt securities held to maturity, gross unrecognized losses	0	0
Debt securities held to maturity, fair value	2,533	3,427
Agency Commercial MBS [Member]
Debt securities available for sale, amortized cost	3,748	1,869
Debt securities available for sale, gross unrealized gains	3	0
Debt securities available for sale, gross unrealized losses	0	(27)
Debt securities available for sale	3,751	1,842
US Government Agencies Debt Securities [Member]
Debt securities available for sale, amortized cost	786	1,128
Debt securities available for sale, gross unrealized gains	0	0
Debt securities available for sale, gross unrealized losses	(9)	(9)
Debt securities available for sale	777	1,119
US States and Political Subdivisions Debt Securities [Member]
Debt securities available for sale, amortized cost	161,506	180,220
Debt securities available for sale, gross unrealized gains	3,944	1,856
Debt securities available for sale, gross unrealized losses	(47)	(2,985)
Debt securities available for sale	165,403	179,091
Debt securities held to maturity, amortized cost	412,750	533,890
Debt securities held to maturity, gross unrecognized gains	7,804	3,403
Debt securities held to maturity, gross unrecognized losses	(11)	(2,727)
Debt securities held to maturity, fair value	420,543	534,566
Debt Security, Corporate, US [Member]
Debt securities available for sale, amortized cost	1,645,518	1,337,608
Debt securities available for sale, gross unrealized gains	24,520	1,075
Debt securities available for sale, gross unrealized losses	(2,991)	(23,642)
Debt securities available for sale	$ 1,667,047	$ 1,315,041

Note 3 - Investment Securitie_4

Note 3 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Investment securities available for sale, amortized cost, 1 year or less	$ 284,550	$ 262,418
Investment securities available for sale, fair value, 1 year or less	285,060	261,976
Investment securities held to maturity, amortized cost, 1 year or less	64,092	86,172
Investment securities held to maturity, fair value, 1 year or less	64,247	86,148
Investment securities available for sale, amortized cost, over 1 to 5 years	1,182,895	1,438,849
Investment securities available for sale, fair value, over 1 to 5 years	1,199,153	1,414,020
Investment securities held to maturity, amortized cost, over 1 to 5 years	179,576	214,137
Investment securities held to maturity, fair value, over 1 to 5 years	182,635	213,829
Investment securities available for sale, amortized cost, over 5 to 10 years	471,434	85,817
Investment securities available for sale, fair value, over 5 to 10 years	478,841	85,877
Investment securities held to maturity, amortized cost, over 5 to 10 years	169,082	232,544
Investment securities held to maturity, fair value, over 5 to 10 years	173,661	233,515
Investment securities available for sale, amortized cost, over 10 years	35,934	38,672
Investment securities available for sale, fair value, over 10 years	37,107	36,970
Investment securities held to maturity, amortized cost, over 10 years	0	1,037
Investment securities held to maturity, fair value, over 10 years	0	1,074
Investment securities available for sale, amortized cost, subtotal	1,974,813	1,825,756
Investment securities available for sale, fair value, subtotal	2,000,161	1,798,843
Investment securities held to maturity, amortized cost, subtotal	412,750	533,890
Investment securities held to maturity, fair value, subtotal	420,543	534,566
Investment securities available for sale, amortized cost	979,915	885,697
Investment securities available for sale, fair value	983,606	855,827
Investment securities held to maturity, amortized cost	380,466	450,719
Investment securities held to maturity, fair value	378,698	436,879
Investment securities available for sale, amortized cost	2,954,728	2,711,453
Investment securities available for sale, fair value	2,983,767	2,654,670
Investment securities held to maturity, amortized cost	793,216	984,609
Investment securities held to maturity, fair value	$ 799,241	$ 971,445

Note 3 - Investment Securitie_5

Note 3 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Available for sale securities, less than 12 months, number of investment positions	19	82
Available for sale securities, less than 12 months, fair value	$ 169,787	$ 499,743
Available for sale securities, less than 12 months, unrealized losses	$ (1,288)	$ (4,111)
Available for sale securities, 12 months or longer, number of investment positions	85	219
Available for sale securities, 12 months or longer, fair value	$ 628,586	$ 1,549,153
Available for sale securities, 12 months or longer, unrealized losses	$ (8,528)	$ (56,269)
Available for sale securities, total, number of investment positions	104	301
Available for sale securities, total, fair value	$ 798,373	$ 2,048,896
Available for sale securities, total, unrealized losses	$ (9,816)	$ (60,380)
Held to Maturity securities, less than 12 months, number of investment positions	7	114
Held to Maturity securities, less than 12 months, fair value	$ 13,020	$ 92,154
Held to Maturity securities, less than 12 months, unrecognized losses	$ (90)	$ (305)
Held to Maturity securities, 12 months or longer, number of investment positions	66	220
Held to Maturity securities, 12 months or longer, fair value	$ 315,290	$ 564,120
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (2,568)	$ (16,551)
Held to Maturity securities, total, number of investment positions	73	334
Held to Maturity securities, total, fair value	$ 328,310	$ 656,274
Held to Maturity securities, total, unrecognized losses	$ (2,658)	$ (16,856)
US Government-sponsored Enterprises Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	2	1
Available for sale securities, less than 12 months, fair value	$ 19,970	$ 990
Available for sale securities, less than 12 months, unrealized losses	$ (30)	$ (5)
Available for sale securities, 12 months or longer, number of investment positions	4	9
Available for sale securities, 12 months or longer, fair value	$ 55,794	$ 117,963
Available for sale securities, 12 months or longer, unrealized losses	$ (130)	$ (3,270)
Available for sale securities, total, number of investment positions	6	10
Available for sale securities, total, fair value	$ 75,764	$ 118,953
Available for sale securities, total, unrealized losses	$ (160)	$ (3,275)
Agency Residential MBS [Member]
Available for sale securities, less than 12 months, number of investment positions	1	8
Available for sale securities, less than 12 months, fair value	$ 3,750	$ 107,497
Available for sale securities, less than 12 months, unrealized losses	$ (62)	$ (507)
Available for sale securities, 12 months or longer, number of investment positions	49	58
Available for sale securities, 12 months or longer, fair value	$ 400,690	$ 640,210
Available for sale securities, 12 months or longer, unrealized losses	$ (6,547)	$ (29,932)
Available for sale securities, total, number of investment positions	50	66
Available for sale securities, total, fair value	$ 404,440	$ 747,707
Available for sale securities, total, unrealized losses	$ (6,609)	$ (30,439)
Held to Maturity securities, less than 12 months, number of investment positions	7	16
Held to Maturity securities, less than 12 months, fair value	$ 13,020	$ 8,495
Held to Maturity securities, less than 12 months, unrecognized losses	$ (90)	$ (34)
Held to Maturity securities, 12 months or longer, number of investment positions	57	78
Held to Maturity securities, 12 months or longer, fair value	$ 306,728	$ 412,574
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (2,557)	$ (14,095)
Held to Maturity securities, total, number of investment positions	64	94
Held to Maturity securities, total, fair value	$ 319,748	$ 421,069
Held to Maturity securities, total, unrecognized losses	$ (2,647)	$ (14,129)
US Treasury Securities [Member]
Available for sale securities, less than 12 months, number of investment positions		2
Available for sale securities, less than 12 months, fair value		$ 54,805
Available for sale securities, less than 12 months, unrealized losses		$ (3)
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		2
Available for sale securities, total, fair value		$ 54,805
Available for sale securities, total, unrealized losses		$ (3)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	32
Available for sale securities, less than 12 months, fair value	$ 0	$ 26,452
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ (166)
Available for sale securities, 12 months or longer, number of investment positions	9	71
Available for sale securities, 12 months or longer, fair value	$ 4,692	$ 67,121
Available for sale securities, 12 months or longer, unrealized losses	$ (47)	$ (2,819)
Available for sale securities, total, number of investment positions	9	103
Available for sale securities, total, fair value	$ 4,692	$ 93,573
Available for sale securities, total, unrealized losses	$ (47)	$ (2,985)
Held to Maturity securities, less than 12 months, number of investment positions	0	97
Held to Maturity securities, less than 12 months, fair value	$ 0	$ 83,633
Held to Maturity securities, less than 12 months, unrecognized losses	$ 0	$ (271)
Held to Maturity securities, 12 months or longer, number of investment positions	9	142
Held to Maturity securities, 12 months or longer, fair value	$ 8,562	$ 151,546
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (11)	$ (2,456)
Held to Maturity securities, total, number of investment positions	9	239
Held to Maturity securities, total, fair value	$ 8,562	$ 235,179
Held to Maturity securities, total, unrecognized losses	$ (11)	$ (2,727)
Non-agency Residential MBS [Member]
Held to Maturity securities, less than 12 months, number of investment positions		1
Held to Maturity securities, less than 12 months, fair value		$ 26
Held to Maturity securities, less than 12 months, unrecognized losses		$ 0
Held to Maturity securities, 12 months or longer, number of investment positions		0
Held to Maturity securities, 12 months or longer, fair value		$ 0
Held to Maturity securities, 12 months or longer, unrecognized losses		$ 0
Held to Maturity securities, total, number of investment positions		1
Held to Maturity securities, total, fair value		$ 26
Held to Maturity securities, total, unrecognized losses		$ 0
US Government Agencies Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	0	0
Available for sale securities, less than 12 months, fair value	$ 0	$ 0
Available for sale securities, less than 12 months, unrealized losses	$ 0	$ 0
Available for sale securities, 12 months or longer, number of investment positions	2	2
Available for sale securities, 12 months or longer, fair value	$ 777	$ 1,119
Available for sale securities, 12 months or longer, unrealized losses	$ (9)	$ (9)
Available for sale securities, total, number of investment positions	2	2
Available for sale securities, total, fair value	$ 777	$ 1,119
Available for sale securities, total, unrealized losses	$ (9)	$ (9)
Agency Commercial MBS [Member]
Available for sale securities, less than 12 months, number of investment positions		1
Available for sale securities, less than 12 months, fair value		$ 1,842
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		$ 1,842
Available for sale securities, total, unrealized losses		$ (27)
Debt Security, Corporate, US [Member]
Available for sale securities, less than 12 months, number of investment positions	16	38
Available for sale securities, less than 12 months, fair value	$ 146,067	$ 308,157
Available for sale securities, less than 12 months, unrealized losses	$ (1,196)	$ (3,403)
Available for sale securities, 12 months or longer, number of investment positions	21	79
Available for sale securities, 12 months or longer, fair value	$ 166,633	$ 722,740
Available for sale securities, 12 months or longer, unrealized losses	$ (1,795)	$ (20,239)
Available for sale securities, total, number of investment positions	37	117
Available for sale securities, total, fair value	$ 312,700	$ 1,030,897
Available for sale securities, total, unrealized losses	$ (2,991)	$ (23,642)

Note 3 - Investment Securitie_6

Note 3 - Investment Securities - Interest Income From Investment Securities (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Taxable	$ 19,586	$ 16,780	$ 56,992	$ 47,327
Tax-exempt from federal income tax	3,777	4,880	12,165	14,768
Total interest income from investment securities	$ 23,363	$ 21,660	$ 69,157	$ 62,095

Note 4 - Loans, Allowance for_3

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned (Details Textual) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018	Sep. 30, 2019USD ($)	Sep. 30, 2018	Dec. 31, 2018USD ($)
FDIC Indemnification Asset, Ending Balance					$ 5,713
Percent of Principal Covered by FDIC					80.00%
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	$ 0		$ 0		$ 0
Financing Receivable, Troubled Debt Restructuring	$ 6,754		$ 6,754		8,579
Troubled Debt Restructurings During Period	0	0	0	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0	0	0
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral, Total	$ 0		$ 0		0
Loans Receivable Held-for-sale, Amount	0		0		0
Other Real Estate, Ending Balance	43		43		350
Other Real Estate, Reserve	0		0		0
Real Estate Acquired Through Foreclosure					0
Mortgage Loans in Process of Foreclosure, Amount	114		114		516
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure					0
Restructured Loans [Member]
Financing Receivable, Troubled Debt Restructuring	6,754		6,754		8,579
Impaired Loans, Restructured, Nonaccrual Status	$ 3,670		$ 3,670		$ 4,225

Note 4 - Loans, Allowance for_4

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans	$ 1,133,229	$ 1,207,202
Commercial Portfolio Segment [Member]
Loans	216,273	275,080
Commercial Real Estate Portfolio Segment [Member]
Loans	579,227	580,480
Construction Portfolio Segment [Member]
Loans	6,678	3,982
Residential Portfolio Segment [Member]
Loans	35,348	44,866
Consumer Portfolio Segment [Member]
Loans	$ 295,703	$ 302,794

Note 4 - Loans, Allowance for_5

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Changes in the Accretable Yield for Purchased Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Balance at the beginning of the period	$ 182	$ 738
Reclassification from nonaccretable difference	1,103	1,119
Accretion	(368)	(1,675)
Balance at the end of the period	917	182
Change in FDIC indemnification	0	2
(Increase) in interest income	$ (368)	$ (1,673)

Note 4 - Loans, Allowance for_6

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Balance at beginning of period	$ 20,117	$ 23,040	$ 21,351	$ 23,009
(Reversal) provision	0	0	0	0
Chargeoffs	(1,039)	(1,469)	(3,403)	(3,680)
Recoveries	750	456	1,880	2,698
Total allowance for loan losses	19,828	22,027	19,828	22,027
Unallocated Financing Receivable [Member]
Balance at beginning of period	4,052	3,759	3,177	3,666
(Reversal) provision	(524)	25	351	118
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for loan losses	3,528	3,784	3,528	3,784
Commercial Portfolio Segment [Member]
Balance at beginning of period	5,235	8,275	6,311	7,746
(Reversal) provision	(596)	(184)	(1,817)	(863)
Chargeoffs	0	(384)	(71)	(425)
Recoveries	233	103	449	1,352
Total allowance for loan losses	4,872	7,810	4,872	7,810
Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period	4,057	3,789	3,884	3,849
(Reversal) provision	(1)	372	146	312
Chargeoffs	0	(240)	0	(240)
Recoveries	12	0	38	0
Total allowance for loan losses	4,068	3,921	4,068	3,921
Construction Portfolio Segment [Member]
Balance at beginning of period	1,117	210	1,465	335
(Reversal) provision	482	44	134	(81)
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for loan losses	1,599	254	1,599	254
Residential Portfolio Segment [Member]
Balance at beginning of period	238	1,064	869	995
(Reversal) provision	(16)	(120)	(647)	(51)
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Total allowance for loan losses	222	944	222	944
Consumer Portfolio Segment [Member]
Balance at beginning of period	5,418	5,943	5,645	6,418
(Reversal) provision	655	(137)	1,833	565
Chargeoffs	(1,039)	(845)	(3,332)	(3,015)
Recoveries	505	353	1,393	1,346
Total allowance for loan losses	$ 5,539	$ 5,314	$ 5,539	$ 5,314

Note 4 - Loans, Allowance for_7

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Recorded Investment in Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Individually evaluated for impairment	$ 2,550		$ 2,752
Collectively evaluated for impairment	17,278		18,599
Total	19,828	$ 20,117	21,351	$ 22,027	$ 23,040	$ 23,009
Individually evaluated for impairment	16,329		19,242
Collectively evaluated for impairment	1,116,900		1,187,960
Total loans	1,133,229		1,207,202
Unallocated Financing Receivable [Member]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	3,528		3,177
Total	3,528	4,052	3,177	3,784	3,759	3,666
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	0		0
Total loans	0		0
Commercial Portfolio Segment [Member]
Individually evaluated for impairment	2,550		2,752
Collectively evaluated for impairment	2,322		3,559
Total	4,872	5,235	6,311	7,810	8,275	7,746
Individually evaluated for impairment	8,647		9,944
Collectively evaluated for impairment	207,626		265,136
Total loans	216,273		275,080
Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	4,068		3,884
Total	4,068	4,057	3,884	3,921	3,789	3,849
Individually evaluated for impairment	7,445		8,438
Collectively evaluated for impairment	571,782		572,042
Total loans	579,227		580,480
Construction Portfolio Segment [Member]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,599		1,465
Total	1,599	1,117	1,465	254	210	335
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	6,678		3,982
Total loans	6,678		3,982
Residential Portfolio Segment [Member]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	222		869
Total	222	238	869	944	1,064	995
Individually evaluated for impairment	193		717
Collectively evaluated for impairment	35,155		44,149
Total loans	35,348		44,866
Consumer Portfolio Segment [Member]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	5,539		5,645
Total	5,539	$ 5,418	5,645	$ 5,314	$ 5,943	$ 6,418
Individually evaluated for impairment	44		143
Collectively evaluated for impairment	295,659		302,651
Total loans	$ 295,703		$ 302,794

Note 4 - Loans, Allowance for_8

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Loans	$ 1,133,229	$ 1,207,202
Pass [Member]
Loans	1,109,559	1,179,859
Substandard [Member]
Loans	23,255	26,658
Doubtful [Member]
Loans	111	135
Unlikely to be Collected Financing Receivable [Member]
Loans	304	550
Commercial Portfolio Segment [Member]
Loans	216,273	275,080
Commercial Portfolio Segment [Member] | Pass [Member]
Loans	207,350	264,634
Commercial Portfolio Segment [Member] | Substandard [Member]
Loans	8,923	10,446
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	579,227	580,480
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans	568,009	567,578
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans	11,218	12,902
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Loans	0	0
Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	0	0
Construction Portfolio Segment [Member]
Loans	6,678	3,982
Construction Portfolio Segment [Member] | Pass [Member]
Loans	6,678	3,982
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	35,348	44,866
Residential Portfolio Segment [Member] | Pass [Member]
Loans	33,629	43,112
Residential Portfolio Segment [Member] | Substandard [Member]
Loans	1,719	1,754
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	295,703	302,794
Consumer Portfolio Segment [Member] | Pass [Member]
Loans	293,893	300,553
Consumer Portfolio Segment [Member] | Substandard [Member]
Loans	1,395	1,556
Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans	111	135
Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans	$ 304	$ 550

Note 4 - Loans, Allowance for_9

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current and accruing	$ 1,122,488	$ 1,193,853
Nonaccrual	4,303	4,868
Total loans	1,133,229	1,207,202
Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	4,775	5,595
Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	1,312	2,335
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	351	551
Commercial Portfolio Segment [Member]
Current and accruing	215,787	274,045
Nonaccrual	26	0
Total loans	216,273	275,080
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	339	781
Commercial Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	119	254
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	2	0
Commercial Real Estate Portfolio Segment [Member]
Current and accruing	574,321	574,853
Nonaccrual	4,177	4,225
Total loans	579,227	580,480
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	729	617
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	0	785
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	6,678	3,982
Nonaccrual	0	0
Total loans	6,678	3,982
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	34,064	43,372
Nonaccrual	0	516
Total loans	35,348	44,866
Residential Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	828	789
Residential Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	456	189
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	291,638	297,601
Nonaccrual	100	127
Total loans	295,703	302,794
Consumer Portfolio Segment [Member] | Financial Asset, 30 to 59 Days Past Due [Member]
Past due and accruing	2,879	3,408
Consumer Portfolio Segment [Member] | Financial Asset, 60 to 89 Days Past Due [Member]
Past due and accruing	737	1,107
Consumer Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Past due and accruing	$ 349	$ 551

Note 4 - Loans, Allowance fo_10

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Impaired Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Impaired loans with no related allowance recorded, recorded investment	$ 8,362	$ 10,180
Impaired loans with no related allowance recorded, unpaid principal balance	9,874	12,256
Impaired loans with an allowance recorded, recorded investment	8,600	9,189
Impaired loans with an allowance recorded, unpaid principal balance	8,600	9,189
Impaired loans with an allowance recorded, related allowance	2,550	2,752
Total impaired loans, recorded investment	16,962	19,369
Total impaired loans, unpaid principal balance	18,474	21,445
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	72	755
Impaired loans with no related allowance recorded, unpaid principal balance	72	759
Impaired loans with an allowance recorded, recorded investment	8,600	9,189
Impaired loans with an allowance recorded, unpaid principal balance	8,600	9,189
Impaired loans with an allowance recorded, related allowance	2,550	2,752
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	7,953	8,438
Impaired loans with no related allowance recorded, unpaid principal balance	9,400	10,373
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	193	717
Impaired loans with no related allowance recorded, unpaid principal balance	224	747
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded, recorded investment	144	270
Impaired loans with no related allowance recorded, unpaid principal balance	$ 178	$ 377

Note 4 - Loans, Allowance fo_11

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Impaired Loans, Supplemental Schedule (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Average Recorded Investment	$ 16,962	$ 22,084	$ 16,836	$ 23,428
Recognized Interest Income	208	372	819	1,132
Commercial Portfolio Segment [Member]
Average Recorded Investment	8,701	10,426	9,404	10,671
Recognized Interest Income	144	175	476	495
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	7,968	11,282	7,133	12,291
Recognized Interest Income	60	189	333	615
Residential Portfolio Segment [Member]
Average Recorded Investment	194	203	196	205
Recognized Interest Income	4	4	10	12
Consumer Portfolio Segment [Member]
Average Recorded Investment	99	173	103	261
Recognized Interest Income	$ 0	$ 4	$ 0	$ 10

Note 4 - Loans, Allowance fo_12

Note 4 - Loans, Allowance for Loan Losses and Other Real Estate Owned - Troubled Debt Restructurings (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019USD ($)	Dec. 31, 2018USD ($)
Number of Contracts	10	13
Pre-Modification Carrying Value	$ 9,398	$ 11,752
Financing Receivable, Troubled Debt Restructuring	6,754	8,579
Period-End Individual Impairment Allowance	$ 18	$ 19
Commercial Portfolio Segment [Member]
Number of Contracts	3	4
Pre-Modification Carrying Value	$ 327	$ 2,274
Financing Receivable, Troubled Debt Restructuring	44	811
Period-End Individual Impairment Allowance	$ 18	$ 19
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	6	8
Pre-Modification Carrying Value	$ 8,830	$ 9,237
Financing Receivable, Troubled Debt Restructuring	6,517	7,568
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	193	200
Period-End Individual Impairment Allowance	$ 0	$ 0

Note 5 - Concentration of Cre_2

Note 5 - Concentration of Credit Risk (Details Textual) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
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	88
Loan Commitments and Standby Letters of Credit Related to Real Estate Loans	$ 44,964	$ 53,891
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	33
Concentration Risk, Aggregate Loans Amount	$ 5,000

Note 6 - Other Assets and Oth_3

Note 6 - Other Assets and Other Liabilities (Details Textual) $ / shares in Units, shares in Thousands, $ in Thousands	Sep. 27, 2019	Jun. 28, 2018	Sep. 30, 2019USD ($)$ / sharesshares	Sep. 30, 2019USD ($)$ / sharesshares	Dec. 31, 2018USD ($)
Deferred Tax Assets, Net, Total			$ 11,947	$ 11,947	$ 42,256
Deferred Tax Assets, Other Comprehensive Loss			8,585	8,585	16,787
LIHTC Investments			8,143	8,143	10,219
Qualified Affordable Housing Project Investments, Commitment			$ 4,754	$ 4,754	4,799
Lessee, Operating Lease, Term of Contract			5 years	5 years
Lessee, Operating Lease, Renewal Term			5 years	5 years
Operating Lease, Liability, Total			$ 19,721	$ 19,721	0
Operating Lease, Right-of-Use Asset			$ 19,721	$ 19,721	$ 0
Operating Lease, Weighted Average Remaining Lease Term			3 years 9 months 25 days	3 years 9 months 25 days
Operating Lease, Weighted Average Discount Rate, Percent			2.93%	2.93%
Operating Lease, Cost			$ 1,726	$ 5,145
Contingent Commitment, Remainder of Fiscal Year [Member]
Qualified Affordable Housing Project Investments, Commitment			601	601
Contingent Commitment, Year 2 [Member]
Qualified Affordable Housing Project Investments, Commitment			2,027	2,027
Contingent Commitment, Year 3 [Member]
Qualified Affordable Housing Project Investments, Commitment			138	138
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment			261	261
Contingent Commitment, Year 5 [Member]
Qualified Affordable Housing Project Investments, Commitment			134	134
Contingent Commitment, Year 6 [Member]
Qualified Affordable Housing Project Investments, Commitment			1,041	1,041
Contingent Commitment, Year 7 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment			$ 552	$ 552
Visa Inc. [Member] | Common Class A [Member]
Share Price | $ / shares			$ 172.01	$ 172.01
VISA Class B Common Stock [Member]
Investment Owned, Balance, Shares | shares			211	211
Conversion Rate of Class B Common Stock into Class A Common Stock	1.6228	1.6298
VISA Class B Common Stock [Member] | Reported Value Measurement [Member]
Investment Owned, at Fair Value			$ 0	$ 0

Note 6 - Other Assets and Oth_4

Note 6 - Other Assets and Other Liabilities - Summary of Other Assets (Details) - USD ($) $ in Thousands		Sep. 30, 2019	Dec. 31, 2018
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		57,169	56,083
Net deferred tax asset		11,947	42,256
Right-of-use asset		19,721	0
Limited partnership investments		8,143	10,219
Interest receivable		25,511	25,834
Prepaid assets		3,530	4,658
Other assets		12,524	9,629
Total other assets		$ 152,772	$ 162,906
[1]	A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six percent of the bank's paid-up capital stock and surplus. One-half of the amount of the bank's subscription shall be paid to the FRB and the remaining half will be subject to call when deemed necessary by the Board of Governors of the Federal Reserve System.

Note 6 - Other Assets and Oth_5

Note 6 - Other Assets and Other Liabilities - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Investment loss included in pre-tax income	$ 600	$ 900	$ 1,800	$ 2,200
Tax credits recognized in provision for income taxes	$ 225	$ 336	$ 675	$ 1,008

Note 6 - Other Assets and Oth_6

Note 6 - Other Assets and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Operating lease liability	$ 19,721	$ 0
Other liabilities	40,687	34,849
Total other liabilities	$ 60,408	$ 34,849

Note 6 - Other Assets and Oth_7

Note 6 - Other Assets and Other Liabilities - Maturity of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Remaining three months of 2019	$ 2,719
2020	6,283
2021	4,574
2022	3,632
2023	2,912
Thereafter	2,057
Total minimum lease payments	22,177
Less: discount	(2,456)
Operating lease liability	$ 19,721	$ 0

Note 6 - Other Assets and Oth_8

Note 6 - Other Assets and Other Liabilities - Noncancelable Operating Leases (Details) $ in Thousands	Dec. 31, 2018USD ($)
2019	$ 5,996
2020	4,409
2021	2,741
2022	1,921
2023	1,223
Thereafter	1,044
Total minimum lease payments	$ 17,334

Note 7 - Goodwill and Identif_3

Note 7 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Goodwill and Intangible Asset Impairment, Total	$ 0	$ 0	$ 0
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0	$ 0

Note 7 - Goodwill and Identif_4

Note 7 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Goodwill	$ 121,673	$ 121,673

Note 7 - Goodwill and Identif_5

Note 7 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - Core Deposits [Member] - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Gross Carrying Amount	$ 56,808	$ 56,808
Accumulated Amortization	$ (55,344)	$ (54,879)

Note 7 - Goodwill and Identif_6

Note 7 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
For the nine months ended September 30, 2019 (actual)	$ 76	$ 451	$ 465	$ 1,474
Core Deposits [Member]
For the nine months ended September 30, 2019 (actual)			465
Estimate for the remainder of year ending December 31, 2019	73		73
Estimate for year ending December 31, 2020	287		287
2021	269		269
2022	252		252
2023	236		236
2024	$ 222		$ 222

Note 8 - Deposits and Borrowe_3

Note 8 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Demand Deposit Overdrafts	$ 1,078		$ 1,078		$ 980
Interest Expense, Time Deposits, $100,000 or More	$ 81	$ 91	$ 246	$ 283

Note 8 - Deposits and Borrowe_4

Note 8 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Noninterest-bearing deposits	$ 2,265,640	$ 2,243,251
Interest-bearing:
Transaction	910,566	929,346
Savings	1,445,210	1,498,991
Time deposits less than $100 thousand	92,300	102,654
Time deposits $100 thousand through $250 thousand	56,066	64,512
Time deposits more than $250 thousand	26,841	28,085
Total deposits	$ 4,796,623	$ 4,866,839

Note 8 - Deposits and Borrowe_5

Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Collateral Carrying Value	$ 245,815	$ 224,020
Short-term borrowed funds	45,646	51,247
US Government-sponsored Enterprises Debt Securities [Member]
Collateral Carrying Value	75,784	73,803
Agency Residential MBS [Member]
Collateral Carrying Value	55,013	58,380
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 115,018	$ 91,837

Note 9 - Fair Value Measureme_3

Note 9 - Fair Value Measurements (Details Textual)	6 Months Ended
	Jun. 30, 2019
Securities Selected for OTTI Analysis, Market Price, Threshold	95.00%
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate	10.00%

Note 9 - Fair Value Measureme_4

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Sep. 30, 2019		Dec. 31, 2018		Jan. 01, 2018
Investment securities available for sale		$ 2,983,767		$ 2,654,670
Equity securities		0		1,747		$ 1,800
US Treasury Securities [Member]
Investment securities available for sale		44,826		139,574
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale		122,108		164,018
Agency Residential MBS [Member]
Investment securities available for sale		979,751		853,871
Non-agency Residential MBS [Member]
Investment securities available for sale		104		114
Agency Commercial MBS [Member]
Investment securities available for sale		3,751		1,842
US Government Agencies Debt Securities [Member]
Investment securities available for sale		777		1,119
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		165,403		179,091
Debt Security, Corporate, US [Member]
Investment securities available for sale		1,667,047		1,315,041
Fair Value, Recurring [Member]
Investment securities available for sale		2,983,767		2,654,670
Equity securities				1,747
Total				2,656,417
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		44,826		139,574
Equity securities				0
Total				139,574
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		2,938,941		2,515,096
Equity securities				1,747
Total				2,516,843
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Equity securities	[2]			0
Total	[2]			0
Fair Value, Recurring [Member] | US Treasury Securities [Member]
Investment securities available for sale		44,826		139,574
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		44,826		139,574
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Mutual Fund [Member]
Equity securities				1,747
Fair Value, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities				0
Fair Value, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities				1,747
Fair Value, Recurring [Member] | Mutual Fund [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities	[2]			0
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale		122,108		164,018
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		122,108		164,018
Fair Value, Recurring [Member] | US Government-sponsored Enterprises Debt Securities [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		979,751		853,871
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		979,751		853,871
Fair Value, Recurring [Member] | Agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Non-agency Residential MBS [Member]
Investment securities available for sale		104		114
Fair Value, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		0		0
Fair Value, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		104		114
Fair Value, Recurring [Member] | Non-agency Residential MBS [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		0	[1]	0	[2]
Fair Value, Recurring [Member] | Agency Commercial MBS [Member]
Investment securities available for sale		3,751		1,842
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		3,751		1,842
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 Agencies Debt Securities [Member]
Investment securities available for sale		777		1,119
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		777		1,119
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		165,403		179,091
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		165,403		179,091
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		1,667,047		1,315,041
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		1,667,047		1,315,041
Fair Value, Recurring [Member] | Debt Security, Corporate, US [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale		$ 0	[1]	$ 0	[2]
[1]	There were no transfers in to or out of level 3 during the nine months ended September 30, 2019.
[2]	There were no transfers in to or out of level 3 during the year ended December 31, 2018.

Note 9 - Fair Value Measureme_5

Note 9 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Fair Value	$ 10,462	$ 10,657
Total Losses	(34)	(240)
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	10,462	10,657
Other Real Estate Owned [Member]
Fair Value	43	350
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	350
Impaired Loans [Member] | Commercial Portfolio Segment [Member]
Fair Value	6,050	6,437
Total Losses	0	0
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	4,099	3,870
Total Losses	0	(240)
Impaired Loans [Member] | Residential Portfolio Segment [Member]
Fair Value	193
Total Losses	0
Impaired Loans [Member] | Consumer Portfolio Segment [Member]
Fair Value	77
Total Losses	(34)
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
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Consumer Portfolio Segment [Member]
Fair Value	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
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Consumer Portfolio Segment [Member]
Fair Value	0
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Portfolio Segment [Member]
Fair Value	6,050	6,437
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Commercial Real Estate Portfolio Segment [Member]
Fair Value	4,099	$ 3,870
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Residential Portfolio Segment [Member]
Fair Value	193
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Consumer Portfolio Segment [Member]
Fair Value	$ 77

Note 9 - Fair Value Measureme_6

Note 9 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Reported Value Measurement [Member]
Cash and due from banks	$ 415,639	$ 420,284
Debt securities held to maturity	793,216	984,609
Loans	1,113,401	1,185,851
Deposits	4,796,623	4,866,839
Short-term borrowed funds	45,646	51,247
Estimate of Fair Value Measurement [Member]
Cash and due from banks	415,639	420,284
Debt securities held to maturity	799,241	971,445
Loans	1,178,305	1,184,770
Deposits	4,794,970	4,862,668
Short-term borrowed funds	45,646	51,247
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	415,639	420,284
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	799,241	971,445
Loans	0	0
Deposits	4,621,416	4,671,588
Short-term borrowed funds	45,646	51,247
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	1,178,305	1,184,770
Deposits	173,554	191,080
Short-term borrowed funds	$ 0	$ 0

Note 10 - Commitments and Con_2

Note 10 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Sep. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Unfunded Loan Commitments		$ 286,876	$ 278,598
Guarantor Obligations, Current Carrying Value		550	75
Other Liabilities [Member]
Reserve for Unfunded Commitments		2,308	2,308
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount		3,099	2,772
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount		$ 0	$ 0
Settlement to Dismiss Lawsuit [Member]
Loss Contingency Accrual, Ending Balance	$ 252
Customer Refunds [Member]
Loss Contingency Accrual, Ending Balance	5,843			$ 5,542
Loss Contingency Accrual, Period Increase (Decrease), Total	$ 301

Note 11 - Earnings Per Common_3

Note 11 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Share-based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	379	326	425	432

Note 11 - Earnings Per Common_4

Note 11 - Earnings Per Common Share - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income applicable to common equity (numerator)	$ 20,390	$ 16,993	$ 59,661	$ 52,509
Basic earnings per common share
Weighted average number of common shares outstanding - basic (in shares)	26,986	26,701	26,924	26,622
Basic earnings per common share (in dollars per share)	$ 0.76	$ 0.64	$ 2.22	$ 1.97
Diluted earnings per common share
Weighted average number of common shares outstanding - basic (in shares)	26,986	26,701	26,924	26,622
Add common stock equivalents for options (in shares)	41	114	52	114
Weighted average number of common shares outstanding - diluted (denominator) (in shares)	27,027	26,815	26,976	26,736
Diluted earnings per common share (in dollars per share)	$ 0.75	$ 0.63	$ 2.21	$ 1.96

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) $ in Thousands	3 Months Ended
	Jun. 30, 2019USD ($)
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions	$ 909
Deferred Tax Assets, Gross, Total	1,003
Deferred Tax Assets, Valuation Allowance, Total	$ 269