Westamerica Bancorporation (WABC) 10-K 28 Feb 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 15, 2017	Jun. 30, 2016
Document Information [Line Items]
Entity Registrant Name	WESTAMERICA BANCORPORATION
Entity Central Index Key	311,094
Trading Symbol	wabc
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	No
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding (in shares)		26,265,972
Entity Public Float			$ 1,077,625,583
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 462,271	$ 433,044
Investment securities available for sale	1,890,758	1,570,216
Investment securities held to maturity, with fair values of: $1,340,741 at December 31, 2016 and $1,325,699 at December 31, 2015	1,346,312	1,316,075
Loans	1,352,711	1,533,396
Allowance for loan losses	(25,954)	(29,771)
Loans, net of allowance for loan losses	1,326,757	1,503,625
Other real estate owned	3,095	9,264
Premises and equipment, net	36,566	38,693
Identifiable intangibles, net	6,927	10,431
Goodwill	121,673	121,673
Other assets	171,724	165,854
Total Assets	5,366,083	5,168,875
Liabilities:
Noninterest-bearing deposits	2,089,443	2,026,049
Interest-bearing deposits	2,615,298	2,514,610
Total deposits	4,704,741	4,540,659
Short-term borrowed funds	59,078	53,028
Other liabilities	40,897	42,983
Total Liabilities	4,804,716	4,636,670
Contingencies (Note 13)
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 25,907 at December 31, 2016 and 25,528 at December 31, 2015	404,606	378,858
Deferred compensation	1,533	2,578
Accumulated other comprehensive (loss) income	(10,074)	675
Retained earnings	165,302	150,094
Total Shareholders' Equity	561,367	532,205
Total Liabilities and Shareholders' Equity	$ 5,366,083	$ 5,168,875

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ / shares in Thousands, $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investment securities held to maturity, fair values	$ 1,340,741	$ 1,325,699
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	150,000,000	150,000,000
Common stock, issued (in shares)	25,907,000	25,528,000
Common stock, outstanding (in shares)	25,907,000	25,528,000

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest and Fee Income:
Loans	$ 69,139	$ 78,441	$ 89,056
Investment securities available for sale	34,276	31,263	24,740
Investment securities held to maturity	30,636	26,825	26,413
Total Interest and Fee Income	134,051	136,529	140,209
Interest Expense:
Deposits	2,077	2,370	2,887
Short-term borrowed funds	39	53	90
Federal Home Loan Bank advances	0	1	407
Term repurchase agreement			60
Total Interest Expense	2,116	2,424	3,444
Net Interest Income	131,935	134,105	136,765
(Reversal of) Provision for Loan Losses	(3,200)		2,800
Net Interest Income After (Reversal of) Provision For Loan Losses	135,135	134,105	133,965
Noninterest Income:
Service charges on deposit accounts	20,854	22,241	24,191
Merchant processing services	6,377	6,339	7,219
Debit card fees	6,290	6,084	5,960
Other service fees	2,571	2,689	2,717
Trust fees	2,686	2,732	2,582
ATM processing fees	2,411	2,397	2,473
Financial services commissions	568	695	757
Other	4,817	4,690	5,888
Total Noninterest Income	46,574	47,867	51,787
Noninterest Expense:
Salaries and related benefits	51,507	52,192	54,777
Occupancy	14,116	14,960	14,992
Outsourced data processing services	8,505	8,441	8,411
Amortization of identifiable intangibles	3,504	3,856	4,270
Furniture and equipment	4,901	4,434	4,174
Courier service	1,952	2,329	2,624
Professional fees	3,980	2,490	2,346
Other real estate owned	(479)	504	(642)
Other	13,766	16,094	15,847
Total Noninterest Expense	101,752	105,300	106,799
Income Before Income Taxes	79,957	76,672	78,953
Provision for income taxes	21,104	17,919	18,307
Net Income	$ 58,853	$ 58,753	$ 60,646
Average Common Shares Outstanding (in shares)	25,612	25,555	26,099
Diluted Average Common Shares Outstanding (in shares)	25,678	25,577	26,160
Per Common Share Data:
Basic earnings (in dollars per share)	$ 2.30	$ 2.30	$ 2.32
Diluted earnings (in dollars per share)	2.29	2.30	2.32
Dividends paid (in dollars per share)	$ 1.56	$ 1.53	$ 1.52

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net Income	$ 14,453	$ 15,628	$ 14,546	$ 14,226	$ 14,578	$ 14,857	$ 14,761	$ 14,557	$ 15,028	$ 15,154	$ 15,157	$ 15,307	$ 58,853	$ 58,753	$ 60,646
Other comprehensive (loss) income:
(Decrease) increase in net unrealized gains on securities available for sale													(18,610)	(8,028)	1,627
Deferred tax benefit (expense)													7,825	3,375	(684)
(Decrease) increase in net unrealized gains on securities available for sale, net of tax													(10,785)	(4,653)	943
Post-retirement benefit transition obligation amortization													61	61	61
Deferred tax expense													(25)	(25)	(25)
Post-retirement benefit transition obligation amortization, net of tax													36	36	36
Total Other Comprehensive (Loss) Income													(10,749)	(4,617)	979
Total Comprehensive Income													$ 48,104	$ 54,136	$ 61,625

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - 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, 2013	26,510
Balance at Dec. 31, 2013	$ 378,946	$ 2,711	$ 4,313	$ 156,964	$ 542,934
Net income				60,646	60,646
Net change			979		979
Exercise of stock options (in shares)	256
Exercise of stock options	$ 12,396				12,396
Tax benefit increase (decrease) upon exercise and expiration of stock options	$ (447)				(447)
Restricted stock activity (in shares)	21
Restricted stock activity	$ 1,114				1,114
Stock based compensation	$ 1,318				1,318
Stock awarded to employees (in shares)	2
Stock awarded to employees	$ 102				102
Retirement of common stock (in shares)	(1,044)
Retirement of common stock	$ (15,297)			(37,381)	(52,678)
Dividends				(39,761)	(39,761)
Balance (in shares) at Dec. 31, 2014	25,745
Balance at Dec. 31, 2014	$ 378,132	2,711	5,292	140,468	526,603
Net income				58,753	58,753
Net change			(4,617)		(4,617)
Exercise of stock options (in shares)	108
Exercise of stock options	$ 4,848				4,848
Tax benefit increase (decrease) upon exercise and expiration of stock options	$ (1,284)				(1,284)
Restricted stock activity (in shares)	17
Restricted stock activity	$ 874	(133)			741
Stock based compensation	$ 1,272				1,272
Stock awarded to employees (in shares)	2
Stock awarded to employees	$ 105				105
Retirement of common stock (in shares)	(344)
Retirement of common stock	$ (5,089)			(10,003)	(15,092)
Dividends				(39,124)	(39,124)
Balance (in shares) at Dec. 31, 2015	25,528
Balance at Dec. 31, 2015	$ 378,858	2,578	675	150,094	532,205
Net income				58,853	58,853
Net change			(10,749)		$ (10,749)
Exercise of stock options (in shares)	499				500
Exercise of stock options	$ 24,031				$ 24,031
Tax benefit increase (decrease) upon exercise and expiration of stock options	$ 394				394
Restricted stock activity (in shares)	15
Restricted stock activity	$ 1,798	(1,045)			753
Stock based compensation	$ 1,494				1,494
Stock awarded to employees (in shares)	2
Stock awarded to employees	$ 90				90
Retirement of common stock (in shares)	(137)
Retirement of common stock	$ (2,059)			(3,721)	(5,780)
Dividends				(39,924)	(39,924)
Balance (in shares) at Dec. 31, 2016	25,907
Balance at Dec. 31, 2016	$ 404,606	$ 1,533	$ (10,074)	$ 165,302	$ 561,367

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities:
Net income		$ 58,853	$ 58,753	$ 60,646
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization/accretion		19,939	16,402	15,502
(Reversal of) Provision for Loan Losses		(3,200)		2,800
Net amortization of deferred loan fees		(340)	(310)	(279)
Increase in interest income receivable		(1,316)	(780)	(469)
Life insurance premiums paid		(828)	(782)	(751)
Decrease in net deferred tax asset		4,380	830	1,417
Increase in other assets		(2,493)	(1,046)	(2,172)
Stock option compensation expense		1,494	1,272	1,318
Tax benefit (increase) decrease upon exercise and expiration of stock options		(394)	1,284	447
(Decrease) increase in income taxes payable		(40)	265	478
Decrease in interest expense payable		(52)	(86)	(111)
Increase (decrease) in other liabilities		2,026	(5,754)	4,474
Gain on sale of real estate and other assets				(400)
Write-down/net loss on sale of premises and equipment		30	109	76
Net loss/write-down (gain) on sale of foreclosed assets		(422)	247	(665)
Net Cash Provided by Operating Activities		77,637	70,404	82,311
Investing Activities:
Net repayments of loans		183,506	164,093	126,414
Net (payments) receipts under FDIC1 indemnification agreements	[1]	(127)		6,703
Purchases of investment securities available for sale		(1,080,959)	(946,794)	(1,126,203)
Proceeds from sale/maturity/calls of securities available for sale		737,625	967,118	604,475
Purchases of investment securities held to maturity		(246,956)	(437,935)	(67,725)
Proceeds from maturity/calls of securities held to maturity		204,054	153,014	153,405
Purchases of premises and equipment		(1,818)	(4,474)	(3,791)
Net change in FRB2/FHLB3 securities	[2],[3]		940	3,248
Proceeds from sale of foreclosed assets		7,412	1,774	8,212
Net Cash Used in Investing Activities		(197,263)	(102,264)	(295,262)
Financing Activities:
Net increase in deposits		164,082	191,476	185,508
Net change in short-term borrowings and FHLB3 advances	[2]	6,050	(56,756)	26,741
Repayments of term repurchase agreement				(10,000)
Exercise of stock options/issuance of shares		24,031	4,848	12,396
Taxes paid by withholding shares for tax purposes		(356)	(357)	(521)
Tax benefit increase (decrease) upon exercise and expiration of stock options		394	(1,284)	(447)
Retirement of common stock		(5,424)	(14,735)	(52,157)
Common stock dividends paid		(39,924)	(39,124)	(39,761)
Net Cash Provided by Financing Activities		148,853	84,068	121,759
Net Change In Cash and Due from Banks		29,227	52,208	(91,192)
Cash and Due from Banks at Beginning of Period		433,044	380,836	472,028
Cash and Due from Banks at End of Period		462,271	433,044	380,836
Supplemental disclosure of noncash activities:
Loan collateral transferred to other real estate owned		821	4,911	968
Securities purchases pending settlement			2,885	2,892
Supplemental disclosure of cash flow activities:
Interest paid for the period		2,202	2,533	3,822
Income tax payments for the period		$ 19,264	$ 17,666	$ 16,412
[1]	Federal Deposit Insurance Corporation ("FDIC")
[2]	Federal Home Loan Bank ("FHLB").
[3]	Federal Reserve Bank ("FRB").

Note 1 - Business and Accountin

Note 1 - Business and Accounting Policies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1: Westamerica Bancorporation, a registered bank holding company (the “Company”), provides a full range of banking services to corporate and individual customers in Northern and Central California through its wholly-owned subsidiary bank, Westamerica Bank (the “Bank”). The Bank is subject to competition from both financial and nonfinancial institutions and to the regulations of certain agencies and undergoes periodic examinations by those regulatory authorities. All of the financial service operations are considered by management to be aggregated in one The Company has evaluated events and transactions subsequent to the balance sheet date. Based on this evaluation, the Company is not aware of any events or transactions that occurred subsequent to the balance sheet date but prior to filing that would require recognition or disclosure in its consolidated financial statements. Certain amounts in prior periods have been reclassified to conform to the current presentation. Summary of Significant Accounting Policies The consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States of America. The following is a summary of significant policies used in the preparation of the accompanying financial statements. Accounting Estimates. Certain accounting policies underlying the preparation of these financial statements require Management to make estimates and judgments about future economic and market conditions. These estimates and judgments may 2017 Principles of Consolidation. The consolidated financial statements include the accounts of the Company and all the Company’s subsidiaries. Significant intercompany transactions have been eliminated in consolidation. The Company does not maintain or conduct transactions with any unconsolidated special purpose entities. Cash. Cash includes Due From Banks balances which are readily convertible to known amounts of cash and are generally 90 Securities. Investment securities consist of debt securities of the U.S. Treasury, government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, asset-backed securities and equity securities. Securities transactions are recorded on a trade date basis. The Company classifies its debt and marketable equity securities in one three The Company utilizes third 1 2 third one third third 3 A decline in the market value of any available for sale or held to maturity security below amortized cost that is deemed other than temporary results in a charge to earnings and the establishment of a new cost basis for the security. Unrealized investment securities losses are evaluated at least quarterly to determine whether such declines in value should be considered “other than temporary” and therefore be subject to immediate loss recognition in income. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally deemed to be temporary when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell or be required to sell the securities before recovery of its amortized cost. An unrealized loss in the value of an equity security is generally considered temporary when the fair value of the security declined primarily due to current market conditions and not deterioration in the financial condition of the issuer, the Company expects the fair value of the security to recover in the near term and the Company does not intend to sell or be required to sell the securities before recovery of its cost basis. Other factors that may The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12 15) Purchase premiums are amortized and purchase discounts are accreted over the estimated life of the related investment security as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale securities are included in earnings using the specific identification method. Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not publicly traded, such as Visa Class B common stock, and securities acquired to meet regulatory requirements, such as Federal Home Loan Bank and Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly for possible declines in value that are considered “other than temporary”. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. The asset value is reduced when a decline in value is considered to be other than temporary. The Company recognizes the estimated loss in noninterest income. Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances. Loans which are more than 90 120 The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 310 40, Nonrefundable fees and certain costs associated with originating or acquiring loans are deferred and amortized as an adjustment to interest income over the contractual loan lives. Upon prepayment, unamortized loan fees, net of costs, are immediately recognized in interest income. Other fees, including those collected upon principal prepayments, are included in interest income when received. Loans held for sale are identified upon origination and are reported at the lower of cost or market value on an aggregate loan basis. Purchased Loans. Purchased loans are recorded at estimated fair value on the date of purchase. Impaired purchased loans are accounted for under FASB ASC 310 30, may 310 30. 310 30 310 30 Covered Loans. Loans covered under loss-sharing or similar credit protection agreements with the FDIC are reported in loans exclusive of the expected reimbursement cash flows from the FDIC. Covered loans are initially recorded at fair value at the acquisition date. Subsequent decreases in the amount expected to be collected results in a provision for loan losses and a corresponding increase in the estimated FDIC reimbursement, with the estimated net loss impacting earnings. Interest previously accrued on covered loans placed on nonaccrual status is charged against interest income, net of estimated FDIC reimbursements of such accrued interest. The FDIC reimburses the Company up to 80% 90 Allowance for Credit Losses. The Company extends loans to commercial and consumer customers in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loan losses. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of these financial statements requires Management to estimate the amount of probable incurred losses inherent in the loan portfolio and establish an allowance for credit losses. The allowance for credit losses is established by assessing a provision for loan losses against the Company’s earnings. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant, such as financial information regarding individual borrowers, overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions and other information. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans, including impaired loans, are charged to the allowance for loan losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for losses that can be estimated based upon specific and general conditions. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, FDIC loss-sharing or similar credit protection agreements and other factors. A portion of the allowance is specifically allocated to impaired loans whose full collectability is uncertain. Such allocations are determined by Management based on loan-by-loan analyses. The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 second Liability for Off-Balance Sheet Credit Exposures. A liability for off-balance sheet credit exposures is established through expense recognition. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. Historical credit loss factors for commercial, construction and consumer loans are applied to the amount of these off-balance sheet credit exposures to estimate inherent losses. Other Real Estate Owned. Other real estate owned is comprised of property acquired through foreclosure proceedings, acceptances of deeds-in-lieu of foreclosure and, if applicable, vacated bank properties. Losses recognized at the time of acquiring property in full or partial satisfaction of debt are charged against the allowance for credit losses. Other real estate owned is recorded at the fair value of the collateral, generally based upon an independent property appraisal, less estimated disposition costs. Losses incurred subsequent to acquisition due to any decline in annual independent property appraisals are recognized as noninterest expense. Routine holding costs, such as property taxes, insurance and maintenance, and losses from sales and dispositions, are recognized as noninterest expense. Covered Other Real Estate Owned. Other real estate owned covered under loss-sharing agreements with the FDIC is reported exclusive of expected reimbursement cash flows from the FDIC. Upon transferring covered loan collateral to covered other real estate owned status, the covered loan collateral is recorded at fair value, generally based upon an independent property appraisal, less estimated disposition costs with losses charged against acquisition date fair value discounts; the amount of losses exceeding acquisition date fair value discounts are recognized as noninterest expense inclusive of expected reimbursement cash flows from the FDIC. Subsequent losses incurred due to any decline in annual independent property appraisal valuations are recognized as noninterest expense inclusive of expected reimbursement cash flows from the FDIC. Premises and Equipment. Premises and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed substantially on the straight-line method over the estimated useful life of each type of asset. Estimated useful lives of premises and equipment range from 20 50 3 20 Revenue Recognition. The Company recognizes revenue as it is earned based on contractual terms, as transactions occur, or as services are provided and collectability is reasonably assured. In certain circumstances, noninterest income is reported net of associated expenses that are directly related to variable volume-based sales or revenue sharing arrangements or when the Company acts on an agency basis for others. Life Insurance Cash Surrender Value. The Company has purchased life insurance policies on certain directors and officers as well as acquired such assets as part of the acquisition of other banks. Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. These assets are included in other assets on the consolidated balance sheets. Intangible Assets. Intangible assets are comprised of goodwill, core deposit intangibles and other identifiable intangibles acquired in business combinations. Intangible assets with definite useful lives are amortized on an accelerated basis over their respective estimated useful lives not exceeding 15 may first 2011 08, Testing for Goodwill Impairment. first Impairment of Long-Lived Assets. The Company reviews its long-lived and certain intangible assets for impairment whenever events or changes indicate that the carrying amount of an asset may Income Taxes. The Company and its subsidiaries file consolidated tax returns. The Company accounts for income taxes in accordance with FASB ASC 740, two fifty Stock Options. The Company applies FASB ASC 718 Extinguishment of Debt. Gains and losses, including fees, incurred in connection with the early extinguishment of debt are charged to current earnings as reductions in noninterest income. Postretirement Benefits. The Company uses an actuarial-based accrual method of accounting for post-retirement benefits. Other. Securities and other property held by the Bank in a fiduciary or agency capacity are not included in the financial statements since such items are not assets of the Company or its subsidiaries. Recently Issued Accounting Standards FASB Accounting Standards Update (ASU) 2016 01 Financial Instruments – Overall (Subtopic 825 10): January 2016. The Company will be required to adopt the ASU provisions on January 1, 2018. FASB Accounting Standards Update (ASU) 2016 02, Leases (Topic 842), February 25, 2016. January 1, 2019, FASB ASU 2016 09, Improvements to Employee Share-Based Payment Accounting, March 30, 2016. (1) (2) (3) January 1, 2017. 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.

Note 2 - Investment Securities

Note 2 - Investment Securities	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 2: An analysis of the amortized cost, gross unrealized gains and losses accumulated in other comprehensive income, and fair value of the available for sale investment securities portfolio follows: Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 141,599 $ 35 $ (2,974 ) $ 138,660 Agency residential mortgage-backed securities (MBS) 711,623 921 (21,045 ) 691,499 Non-agency residential MBS 272 - (1 ) 271 Non-agency commercial MBS 2,041 - (16 ) 2,025 Obligations of states and political subdivisions 182,230 5,107 (3,926 ) 183,411 Asset-backed securities 696 - (1 ) 695 FHLMC (1) (2) 749 10,120 - 10,869 Corporate securities 866,835 1,690 (7,668 ) 860,857 Other securities 2,034 621 (184 ) 2,471 Total $ 1,908,079 $ 18,494 $ (35,815 ) $ 1,890,758 (1) (2) An analysis of the amortized cost, gross unrecognized gains and losses, and fair value of the held to maturity investment securities portfolio follows: Investment Securities Held to Maturity Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 581 $ 1 $ - $ 582 Agency residential MBS 668,235 1,122 (8,602 ) 660,755 Non-agency residential MBS 5,370 76 - 5,446 Agency commercial MBS 9,332 11 (143 ) 9,200 Obligations of states and political subdivisions 662,794 6,031 (4,067 ) 664,758 Total $ 1,346,312 $ 7,241 $ (12,812 ) $ 1,340,741 An analysis of the amortized cost, gross unrealized gains and losses accumulated in other comprehensive income, and fair value of the available for sale investment securities portfolio follows: Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 302,292 $ 255 $ (665 ) $ 301,882 Agency residential MBS 208,046 1,407 (6,909 ) 202,544 Non-agency residential MBS 354 16 - 370 Non-agency commercial MBS 2,383 5 (9 ) 2,379 Obligations of states and political subdivisions 148,705 8,861 (57 ) 157,509 Asset-backed securities 2,025 - (22 ) 2,003 FHLMC (1) (2) 775 3,554 - 4,329 Corporate securities 902,308 882 (6,821 ) 896,369 Other securities 2,039 952 (160 ) 2,831 Total $ 1,568,927 $ 15,932 $ (14,643 ) $ 1,570,216 (1) (2) An analysis of the amortized cost, gross unrecognized gains and losses, and fair value of the held to maturity investment securities portfolio follows: Investment Securities Held to Maturity Amortized Gross Gross Fair (In thousands) Securities of U.S. government sponsored entities $ 764 $ - $ - $ 764 Agency residential MBS 595,503 1,810 (4,966 ) 592,347 Non-agency residential MBS 9,667 185 - 9,852 Agency commercial MBS 16,258 20 (274 ) 16,004 Obligations of states and political subdivisions 693,883 13,638 (789 ) 706,732 Total $ 1,316,075 $ 15,653 $ (6,029 ) $ 1,325,699 The amortized cost and fair value of investment securities by contractual maturity are shown in the following table s at the dates indicated: At December 31, 2016 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 154,693 $ 154,835 $ 14,961 $ 15,639 Over 1 to 5 years 750,834 745,219 292,024 292,062 Over 5 to 10 years 238,077 239,153 318,580 319,587 Over 10 years 47,756 44,416 37,810 38,052 Subtotal 1,191,360 1,183,623 663,375 665,340 MBS 713,936 693,795 682,937 675,401 Other securities 2,783 13,340 - - Total $ 1,908,079 $ 1,890,758 $ 1,346,312 $ 1,340,741 At December 31, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 136,717 $ 136,976 $ 20,709 $ 21,354 Over 1 to 5 years 1,049,786 1,044,453 259,556 262,163 Over 5 to 10 years 166,352 173,585 289,568 296,352 Over 10 years 2,475 2,749 124,814 127,627 Subtotal 1,355,330 1,357,763 694,647 707,496 MBS 210,783 205,293 621,428 618,203 Other securities 2,814 7,160 - - Total $ 1,568,927 $ 1,570,216 $ 1,316,075 $ 1,325,699 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 December 31, 2016 December 31, 2015, no An analysis of the gross unrealized losses of the available for sale investment securities portfolio follows: Investment Securities Available for Sale 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 8 $ 117,227 $ (2,974 ) - $ - $ - 8 $ 117,227 $ (2,974 ) Agency residential MBS 21 524,269 (16,494 ) 28 122,901 (4,551 ) 49 647,170 (21,045 ) Non-agency residential MBS 2 246 (1 ) - - - 2 246 (1 ) Non-agency commercial MBS 2 1,253 (9 ) 1 772 (7 ) 3 2,025 (16 ) Obligations of states and political subdivisions 43 57,989 (3,905 ) 3 1,117 (21 ) 46 59,106 (3,926 ) Asset-backed securities - - - 1 695 (1 ) 1 695 (1 ) Corporate securities 53 385,175 (6,551 ) 27 96,145 (1,117 ) 80 481,320 (7,668 ) Other securities - - - 1 1,816 (184 ) 1 1,816 (184 ) Total 129 $ 1,086,159 $ (29,934 ) 61 $ 223,446 $ (5,881 ) 190 $ 1,309,605 $ (35,815 ) An analysis of gross unrecognized losses of the held to maturity investment securities portfolio follows: Investment Securities Held to Maturity 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 66 $ 569,876 $ (8,285 ) 3 $ 10,480 $ (317 ) 69 $ 580,356 $ (8,602 ) Agency commercial MBS - - - 1 7,214 (143 ) 1 7,214 (143 ) Obligations of states and political subdivisions 295 272,496 (3,710 ) 12 13,126 (357 ) 307 285,622 (4,067 ) Total 361 $ 842,372 $ (11,995 ) 16 $ 30,820 $ (817 ) 377 $ 873,192 $ (12,812 ) The unrealized losses on the Company’s investment securities were caused by market conditions for these types of investments, particularly changes in risk-free interest rates. The Company evaluates 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. In addition to monitoring credit rating agency evaluations, Management performs its own evaluations regarding the credit worthiness of the issuer or the securitized assets underlying asset backed securities. The Company does not intend to sell any investments and has concluded that it is more likely than not that it will not be required to sell the investments prior to recovery of the amortized cost basis. Therefore, the Company does not consider these investments to be other-than-temporarily impaired as of December 31, 2016. The fair values of the investment 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 securities declines. As a result, other than temporary impairments may As of December 31, 2016, $768,845 December 31, 2015, $738,865 An analysis of gross unrealized losses of investment securities available for sale follows: Investment Securities Available for Sale No. of Less than 12 months No. of 12 months or longer No. of Total Investment Unrealized Investment Unrealized Investment Unrealized Positions Fair Value Losses Positions Fair Value Losses Positions Fair Value Losses ($ in thousands) Securities of U.S. Government sponsored entities 8 $ 121,392 $ (665 ) - $ - $ - 8 $ 121,392 $ (665 ) Agency residential MBS 2 12,491 (366 ) 31 161,296 (6,543 ) 33 173,787 (6,909 ) Non-agency commercial MBS 1 1,071 - 1 855 (9 ) 2 1,926 (9 ) Obligations of states and political subdivisions 3 2,728 (18 ) 4 1,644 (39 ) 7 4,372 (57 ) Asset-backed securities - - - 1 2,003 (22 ) 1 2,003 (22 ) Corporate securities 97 548,177 (5,442 ) 25 86,762 (1,379 ) 122 634,939 (6,821 ) Other securities - - - 1 1,840 (160 ) 1 1,840 (160 ) Total 111 $ 685,859 $ (6,491 ) 63 $ 254,400 $ (8,152 ) 174 $ 940,259 $ (14,643 ) An analysis of gross unrecognized losses of investment securities held to maturity follows: Investment Securities Held to Maturity 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 41 $ 426,317 $ (3,490 ) 13 $ 62,041 $ (1,476 ) 54 $ 488,358 $ (4,966 ) Agency commercial MBS - - - 2 13,951 (274 ) 2 13,951 (274 ) Obligations of states and political subdivisions 55 44,585 (249 ) 54 42,081 (540 ) 109 86,666 (789 ) Total 96 $ 470,902 $ (3,739 ) 69 $ 118,073 $ (2,290 ) 165 $ 588,975 $ (6,029 ) The following table provides information about the amount of interest income earned on investment securities which is fully taxable and which is exempt from regular federal income tax: For the Years Ended December 31, 2016 2015 2014 (In thousands) Taxable $ 42,718 $ 34,472 $ 24,766 Tax-exempt from regular federal income tax 22,194 23,616 26,387 Total interest income from investment securities $ 64,912 $ 58,088 $ 51,153

Note 3 - Loans and Allowance fo

Note 3 - Loans and Allowance for Credit Losses	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 3: A summary of the major categories of loans outstanding is shown in the following tables. At December 31, 2016 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 1,235,559 Purchased covered loans - - - 2,086 8,941 11,027 Purchased non-covered loans : Gross purchased non-covered loans 12,452 71,250 146 222 26,113 110,183 Purchased loan discount (547 ) (2,637 ) - (23 ) (851 ) (4,058 ) Total $ 354,697 $ 542,171 $ 2,555 $ 87,724 $ 365,564 $ 1,352,711 At December 31, 2015 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 1,351,839 Purchased covered loans : Gross purchased covered loans - - - 2,385 11,828 14,213 Purchased loan discount - - - (133 ) (19 ) (152 ) Purchased non-covered loans : Gross purchased non-covered loans 15,620 124,650 973 231 32,454 173,928 Purchased loan discount (989 ) (4,264 ) - (23 ) (1,156 ) (6,432 ) Total $ 382,748 $ 637,456 $ 3,951 $ 120,091 $ 389,150 $ 1,533,396 Changes in the carrying amount of impaired purchased loans were as follows: For the Years Ended December 31, 2016 2015 Impaired purchased loans (In thousands) Carrying amount at the beginning of the period $ 3,887 $ 4,672 Reductions during the period (3,022 ) (785 ) Carrying amount at the end of the period $ 865 $ 3,887 Changes in the accretable yield for purchased loans were as follows: For the Years Ended December 31, 2016 2015 Accretable yield: (In thousands) Balance at the beginning of the period $ 1,259 $ 2,261 Reclassification from nonaccretable difference 3,912 3,051 Accretion (3,934 ) (4,053 ) Balance at the end of the period $ 1,237 $ 1,259 Accretion $ (3,934 ) $ (4,053 ) Change in FDIC indemnification 1,053 698 (Increase) in interest income $ (2,881 ) $ (3,355 ) The following summarizes activity in the allowance for loan losses: Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Additions: (Reversal) provision (2,065 ) (954 ) (34 ) (493 ) 2,344 (923 ) 53 (1,128 ) (3,200 ) Deductions: Chargeoffs (2,023 ) - - - (4,404 ) (345 ) - - (6,772 ) Recoveries 2,836 60 - - 1,512 1,747 - - 6,155 Net loan recoveries (losses) 813 60 - - (2,892 ) 1,402 - - (617 ) Total allowance for loan losses $ 8,307 $ 3,330 $ 143 $ 1,308 $ 6,532 $ 1,446 $ 53 $ 4,835 $ 25,954 Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,460 $ 4,245 $ 644 $ 2,241 $ 7,717 $ 2,120 $ - $ 9,058 $ 31,485 Additions: Provision (reversal) 3,702 356 (512 ) (440 ) 950 (961 ) - (3,095 ) - Deductions: Chargeoffs (756 ) (449 ) - - (3,493 ) (431 ) - - (5,129 ) Recoveries 1,153 72 45 - 1,906 239 - - 3,415 Net loan recoveries (losses) 397 (377 ) 45 - (1,587 ) (192 ) - - (1,714 ) Total allowance for loan losses $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Allowance for Credit Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 4,005 $ 12,070 $ 602 $ 405 $ 3,198 $ - $ 1,561 $ 9,852 $ 31,693 Additions: Provision (reversal) 1,095 (7,276 ) 39 1,866 6,864 1,006 - (794 ) 2,800 Deductions: Chargeoffs (1,890 ) (762 ) - (30 ) (4,214 ) (522 ) - - (7,418 ) Recoveries 2,250 213 3 - 1,869 75 - - 4,410 Net loan recoveries (losses) 360 (549 ) 3 (30 ) (2,345 ) (447 ) - - (3,008 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 5,460 4,245 644 2,241 7,717 2,120 - 9,058 31,485 Liability for off-balance sheet credit exposure 2,408 - 344 - 437 - - (496 ) 2,693 Total allowance for credit losses $ 7,868 $ 4,245 $ 988 $ 2,241 $ 8,154 $ 2,120 $ - $ 8,562 $ 34,178 FDIC indemnification expired February 6, 2014 The allowance for loan losses and recorded investment in loans were evaluated for impairment as follows: Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Construction Residential Consumer Purchased Non- Purchased Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 5,048 $ - $ - $ - $ - $ - $ - $ - $ 5,048 Collectively evaluated for impairment 3,259 3,330 143 1,308 6,532 1,446 53 4,835 20,906 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 8,307 $ 3,330 $ 143 $ 1,308 $ 6,532 $ 1,446 $ 53 $ 4,835 $ 25,954 Carrying value of loans: Individually evaluated for impairment $ 11,140 $ 5,264 $ - $ - $ - $ 7,694 $ 617 $ - $ 24,715 Collectively evaluated for impairment 331,652 468,294 2,409 85,439 331,361 97,751 10,225 - 1,327,131 Purchased loans with evidence of credit deterioration - - - - - 680 185 - 865 Total $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 106,125 $ 11,027 $ - $ 1,352,711 Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Construction Residential Consumer Purchased Non- Purchased Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 4,942 $ 585 $ - $ - $ - $ - $ - $ - $ 5,527 Collectively evaluated for impairment 4,617 3,639 177 1,801 7,080 967 - 5,963 24,244 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Carrying value of loans: Individually evaluated for impairment $ 12,587 $ 5,541 $ - $ - $ - $ 11,777 $ - $ - $ 29,905 Collectively evaluated for impairment 355,530 511,529 2,978 117,631 346,043 152,038 13,855 - 1,499,604 Purchased loans with evidence of credit deterioration - - - - - 3,681 206 - 3,887 Total $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 167,496 $ 14,061 $ - $ 1,533,396 The Bank’s customers are small businesses, professionals and consumers. Given the scale of these borrowers, corporate credit rating agencies do not evaluate the borrowers’ financial condition. The Bank maintains a Loan Review Department which reports directly to the Board of Directors. The Loan Review Department performs independent evaluations of loans and assigns credit risk grades to evaluated loans using grading standards employed by bank regulatory agencies. Loans judged to carry lower-risk attributes are assigned a “pass” grade, with a minimal likelihood of loss. Loans judged to carry higher-risk attributes are referred to as “classified loans,” and are further disaggregated, with increasing expectations for loss recognition, as “substandard,” “doubtful,” and “loss.” Loan Review Department evaluations occur every calendar quarter. If the Bank becomes aware of deterioration in a borrower’s performance or financial condition between Loan Review Department examinations, assigned risk grades are re-evaluated promptly. Credit risk grades assigned by the Loan Review Department are subject to review by the Bank’s regulatory authorities during regulatory examinations. The following summarizes the credit risk profile by internally assigned grade: Credit Risk Profile by Internally Assigned Grade Commercial Commercial Construction Residential Consumer Purchased Non- Purchased (1) Total (In thousands) Grade: Pass $ 329,964 $ 459,771 $ 2,409 $ 82,715 $ 329,961 $ 95,373 $ 9,419 $ 1,309,612 Substandard 12,828 13,787 - 2,724 1,056 13,368 1,608 45,371 Doubtful - - - - 6 1,300 - 1,306 Loss - - - - 338 142 - 480 Purchased loan discount - - - - - (4,058 ) - (4,058 ) Total $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 106,125 $ 11,027 $ 1,352,711 (1) Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification. Credit Risk Profile by Internally Assigned Grade Commercial Commercial Construction Residential Consumer Purchased Non- Purchased (1) Total (In thousands) Grade: Pass $ 353,474 $ 496,744 $ 2,978 $ 114,525 $ 344,876 $ 149,100 $ 12,563 $ 1,474,260 Substandard 14,643 20,326 - 3,106 781 24,810 1,650 65,316 Doubtful - - - - 12 18 - 30 Loss - - - - 374 - - 374 Purchased loan discount - - - - - (6,432 ) (152 ) (6,584 ) Total $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 167,496 $ 14,061 $ 1,533,396 (1) The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 341,632 $ 926 $ 40 $ - $ 194 $ 342,792 Commercial real estate 467,529 407 445 - 5,177 473,558 Construction 2,183 226 - - - 2,409 Residential real estate 84,430 528 37 - 444 85,439 Consumer installment and other 327,029 3,028 949 355 - 331,361 Total originated loans 1,222,803 5,115 1,471 355 5,815 1,235,559 Purchased non-covered loans 102,878 1,353 40 142 1,712 106,125 Purchased covered loans 10,169 - - - 858 11,027 Total $ 1,335,850 $ 6,468 $ 1,511 $ 497 $ 8,385 $ 1,352,711 Summary of Loans by Delinquency and Nonaccrual Status Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 365,450 $ 1,777 $ 122 $ - $ 768 $ 368,117 Commercial real estate 504,970 5,930 726 - 5,444 517,070 Construction 2,978 - - - - 2,978 Residential real estate 115,575 1,202 414 - 440 117,631 Consumer installment and other 341,566 3,263 919 295 - 346,043 Total originated loans 1,330,539 12,172 2,181 295 6,652 1,351,839 Purchased non-covered loans 158,554 589 7 - 8,346 167,496 Purchased covered loans 13,929 132 - - - 14,061 Total $ 1,503,022 $ 12,893 $ 2,188 $ 295 $ 14,998 $ 1,533,396 The following is a summary of the effect of nonaccrual loans on interest income: For the Years Ended December 31, 2016 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 874 $ 1,277 $ 1,146 Interest income recognized on nonaccrual loans (1,097 ) (362 ) (60 ) Total (addition) reduction of interest income $ (223 ) $ 915 $ 1,086 There were no December 31, 2016 December 31, 2015. The following summarizes impaired loans: Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 1,234 $ 1,303 $ - Commercial real estate 13,233 15,610 - Construction - - - Residential real estate 1,279 1,309 - Consumer installment and other 569 675 - Impaired loans with an allowance recorded: Commercial 10,163 10,172 5,048 Commercial real estate - - - Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 11,397 $ 11,475 $ 5,048 Commercial real estate 13,233 15,610 - Construction - - - Residential real estate 1,279 1,309 - Consumer installment and other 569 675 - Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,917 $ 2,979 $ - Commercial real estate 16,309 21,168 - Construction 271 271 - Residential real estate 666 697 - Consumer installment and other 350 456 - Impaired loans with an allowance recorded: Commercial 10,170 10,170 4,942 Commercial real estate 4,660 5,109 585 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 13,087 $ 13,149 $ 4,942 Commercial real estate 20,969 26,277 585 Construction 271 271 - Residential real estate 666 697 - Consumer installment and other 350 456 - Impaired loans include troubled debt restructured loans. Impaired loans at December 31, 2016, $12,381 $5,302 December 31, 2015, $15,712 $7,464 Impaired Loans 2016 2015 2014 Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,923 $ 512 $ 12,631 $ 584 $ 5,240 $ 325 Commercial real estate 16,701 725 20,307 674 19,880 469 Construction 102 - 263 - 2,015 - Residential real estate 746 19 643 31 153 - Consumer installment and other 473 25 739 25 1,399 29 Total $ 30,945 $ 1,281 $ 34,583 $ 1,314 $ 28,687 $ 823 The following table provides information on troubled debt restructurings: Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End ($ in thousands) Commercial 7 $ 2,719 $ 1,489 $ 113 Commercial real estate 10 11,257 10,673 - Residential real estate 1 241 219 - Total 18 $ 14,217 $ 12,381 $ 113 Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End ($ in thousands) Commercial 6 $ 3,138 $ 2,802 $ 194 Commercial real estate 10 12,927 12,684 - Residential real estate 1 242 226 - Total 17 $ 16,307 $ 15,712 $ 194 Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 3 $ 2,075 $ 1,901 $ - Commercial real estate 4 2,890 2,928 - Consumer installment and other 1 18 8 - Total 8 $ 4,983 $ 4,837 $ - During the year ended December 31, 2016, four $4,731 four 2016 three one During the year ended December 31, 2015, ten $11,026 2015 four six During the year ended December 31, 2014, five $713 five 2014 During the years ended December 31, 2016, 2015 2014, 12 ninety There were no December 31, 2016 December 31, 2015. There were no December 31, 2016 December 31, 2015. At December 31, 2016 December 31, 2015, $3,095 $1,816 $9,264 $1,986 0 0 December 31, 2016 December 31, 2015.

Note 4 - Concentration of Credi

Note 4 - Concentration of Credit Risk	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	Note 4: Under the California Financial Code, credit extended to any one one 15 25 December 31, 2016, one December 31, 2016, 35 $5 3, $57,721 $61,190 December 31, 2016 December 31, 2015, 75% 80% December 31, 2016, 50 $5

Note 5 - Premises, Equipment an

Note 5 - Premises, Equipment and Other Assets	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Other Assets Disclosure [Text Block]	Note 5: Premises and equipment consisted of the following: At December 31, Cost Accumulated Net Book Value (In thousands) 2016 Land $ 11,896 $ - $ 11,896 Building and improvements 40,992 (25,180 ) 15,812 Leasehold improvements 5,922 (4,599 ) 1,323 Furniture and equipment 21,874 (14,339 ) 7,535 Total $ 80,684 $ (44,118 ) $ 36,566 2015 Land $ 11,896 $ - $ 11,896 Building and improvements 40,795 (24,024 ) 16,771 Leasehold improvements 5,696 (4,628 ) 1,068 Furniture and equipment 24,266 (15,308 ) 8,958 Total $ 82,653 $ (43,960 ) $ 38,693 Depreciation and amortization of premises and equipment included in noninterest expense amounted to $3,959 2016, $3,523 2015 $3,177 2014. Other assets consisted of the following: At December 31, 2016 2015 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 201 201 Total cost method equity investments 14,270 14,270 Life insurance cash surrender value 51,535 48,972 Net deferred tax asset 55,417 51,748 Limited partnership investments 12,591 15,259 Interest receivable 21,489 20,174 Prepaid assets 4,825 4,771 Other assets 11,597 10,660 Total other assets $ 171,724 $ 165,854 (1) A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank (FRB) in its district in a sum equal to six The Company invests in flow-through limited liability entities that manage or invest in affordable housing projects that qualify for low-income housing tax credits. At December 31, 2016, $12,591 $2,299 December 31, 2015, $15,259 $2,299 December 31, 2016, $2,299 $722 2020, $131 2023, $90 2024 $1,356 2025 The amounts recognized in net income for these investments include: For the Years Ended December 31, 2016 2015 2014 (In thousands) Investment loss included in pre-tax income $ 2,475 $ 2,850 $ 2,950 Tax credits recognized in provision for income taxes 2,286 2,650 2,825

Note 6 - Goodwill and Identifia

Note 6 - Goodwill and Identifiable Intangible Assets	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Goodwill and Intangible Assets Disclosure [Text Block]	Note 6: The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not amortized, but is evaluated for impairment at least annually. The Company did not December 31, 2016, December 31, 2015 December 31, 2014. December 31, 2016, December 31, 2015 December 31, 2014, no The carrying values of goodwill were: At December 31, 2016 2015 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At December 31, 2016 At December 31, 2015 Gross Accumulated Gross Accumulated (In thousands) Core Deposit Intangibles $ 56,808 $ (50,074 ) $ 56,808 $ (46,782 ) Merchant Draft Processing Intangible 10,300 (10,107 ) 10,300 (9,895 ) Total Identifiable Intangible Assets $ 67,108 $ (60,181 ) $ 67,108 $ (56,677 ) As of December 31, 2016, Core Merchant Total (In thousands) For the Year Ended December 31, 2016 (actual) $ 3,292 $ 212 $ 3,504 Estimate for the Year Ended December 31, 2017 2,913 164 3,077 2018 1,892 29 1,921 2019 538 - 538 2020 287 - 287 2021 269 - 269

Note 7 - Deposits and Borrowed

Note 7 - Deposits and Borrowed Funds	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Deposits and Borrowed Funds [Text Block]	Note 7: The following table provides additional detail regarding deposits. Deposits At December 31, 2016 2015 (In thousands) Noninterest-bearing $ 2,089,443 $ 2,026,049 Interest-bearing: Transaction 865,701 860,706 Savings 1,493,427 1,366,936 Time deposits less than $100 thousand 133,712 150,780 Time deposits $100 thousand through $250 thousand 84,925 96,971 Time deposits more than $250 thousand 37,533 39,217 Total deposits $ 4,704,741 $ 4,540,659 Demand deposit overdrafts of $2,679 $3,038 December 31, 2016 December 31, 2015, $100 $509 2016, $687 2015 $893 2014. The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements At December 31, 2016 2015 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ 74,031 $ 98,969 Agency residential MBS 63,277 - Obligations of states and political subdivisions - 3,975 Corporate securities 90,554 54,681 Total collateral carrying value $ 227,862 $ 157,625 Total short-term borrowed funds $ 59,078 $ 53,028 The Company had a $35,000 March 18, 2016. no December 31, 2015. For the Years Ended December 31, 2016 2015 Highest Balance at Any Month-end (In thousands) Securities sold under repurchase agreements $ 74,815 $ 89,484

Note 8 - Shareholders' Equity

Note 8 - Shareholders' Equity	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Stockholders' Equity Note Disclosure [Text Block]	Note 8: The Company grants stock options and restricted performance shares to employees in exchange for employee services, pursuant to the shareholder-approved 1995 2012. three ten three three The following table summarizes information about stock options granted under the Plan as of December 31, 2016. December 31, 2016 December 31, 2016 $62.93 Options Outstanding Options Exercisable At December 31, 2016 For the Year At December 31, 2016 For the Year Range of Exercise Price Number Aggregate Weighted Weighted Number Aggregate Weighted Weighted (In thousands) (Years) (In thousands) (Years) $40 - 45 594 $ 12,072 8.1 $ 43 107 $ 2,105 5.4 $ 43 45 - 50 112 1,791 2.4 47 112 1,791 2.4 47 50 - 55 472 5,360 3.9 52 406 4,724 3.4 51 55 - 60 95 596 3.1 57 95 596 3.1 57 $40 - 60 1,273 $ 19,819 5.7 47 720 $ 9,216 3.5 50 The Company applies the Roll-Geske option pricing model (Modified Roll) to determine grant date fair value of stock option grants. This model modifies the Black-Scholes Model to take into account dividends and American options. During the twelve December 31, 2016, 2015 2014, 325 343 294 For the Years Ended December 31, 2016 2015 2014 Expected volatility (1) 22 % 20 % 16 % Expected life in years (2) 4.8 4.9 4.9 Risk-free interest rate 1.41 % 1.36 % 1.59 % Expected dividend yield (3) 4.49 % 3.64 % 3.32 % Fair value per award $ 5.97 $ 5.46 $ 5.91 (1) Measured using daily price changes of Company’s stock over respective expected term of the option and the implied volatility derived from the market prices of the Company’s stock and traded options. (2) The number of years that the Company estimates that the options will be outstanding prior to exercise. (3) The risk-free rate over the expected life based on the US Treasury yield curve in effect at the time of the grant. Employee stock option grants are being expensed by the Company over the grants’ three December 31, 2016 1,211 A summary of option activity during the year ended December 31, 2016 Shares Weighted Weighted (In thousands) (Years) Outstanding at January 1, 2016 1,549 $ 48.83 Granted 325 42.33 Exercised (500 ) 48.08 Forfeited or expired (101 ) 50.17 Outstanding at December 31, 2016 1,273 47.36 5.7 Exercisable at December 31, 2016 720 50.12 3.5 A summary of the Company’s nonvested option activity during the year ended December 31, 2016 Shares Weighted (In thousands) Nonvested at January 1, 2016 493 $ 5.45 Granted 325 5.97 Vested (239 ) 5.32 Forfeited (26 ) 5.82 Nonvested at December 31, 2016 553 $ 5.80 The weighted average estimated grant date fair value for options granted under the Company’s stock option plan during the twelve December 31, 2016, 2015 2014 $5.97, $5.46 $5.91 December 31, 2016 $1,605 1.8 The total intrinsic value of options exercised during the twelve December 31, 2016, 2015 2014 $3,242 $504 $1,309 twelve December 31, 2016, 2015 2014 $753 $741 $1,115 twelve December 31, 2016, 2015 2014 $1,269 $1,321 $1,397 $394 twelve December 31, 2016. $1,284 $447 twelve December 31, 2015 2014. A summary of the status of the Company’s restricted performance shares as of December 31, 2016 2015 twelve 2016 2015 (In thousands) Outstanding at January 1, 45 50 Granted 18 21 Issued upon vesting (15 ) (17 ) Forfeited - (9 ) Outstanding at December 31, 48 45 As of December 31, 2016 2015, 1.1 1.3 $1,228 $535 $575 twelve December 31, 2016, 2015 2014, no twelve December 31, 2016 2015. On February 13, 2009, 246,640 $50.92 December 31, 2016. The Company repurchases and retires its common stock in accordance with Board of Directors approved share repurchase programs. At December 31, 2016, 1,750 Shareholders have authorized two one 150 December 31, 2016, no

Note 9 - Risk-based Capital

Note 9 - Risk-based Capital	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Regulatory Capital Requirements under Banking Regulations [Text Block]	Note 9: Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations, involve quantitative measures of assets, liabilities, and certain off-balance-sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can result in regulatory action. The final rules implementing Basel Committee on Banking Supervision’s capital guidelines for U.S. banks (Basel III rules) became effective for the Company on January 1, 2015 January 1, 2019. 0.0% 2015 2.50% 2019. 2016 0.625%. December 31, 2016, Prompt corrective action regulations provide five 2016 2015, The capital ratios for the Company and the Bank under the new capital framework as of the dates indicated are presented in the table below. At December 31, 2016 Required To Be Well-capitalized Amount Ratio Amount Ratio Amount Ratio ($ in thousands) Common Equity Tier 1 Capital Company $ 443,574 14.85 % $ 153,126 5.125 % (1) N/A N/A Bank 344,739 11.70 % 150,982 5.125 % (1) $ 191,489 6.50 % Tier 1 Capital Company 443,574 14.85 % 197,944 6.625 % (1) N/A N/A Bank 344,739 11.70 % 195,172 6.625 % (1) 235,680 8.00 % Total Capital Company 476,595 15.95 % 257,700 8.625 % (1) N/A N/A Bank 383,572 13.02 % 254,092 8.625 % (1) 294,600 10.00 % Leverage Ratio (2) Company 443,574 8.46 % 209,702 4.000 % N/A N/A Bank 344,739 6.63 % 208,005 4.000 % 260,006 5.00 % (1) 0.625% (2) 1capital At December 31, 2015 Required To Be Well-capitalized Amount Ratio Amount Ratio Amount Ratio ($ in thousands) Common Equity Tier 1 Capital Company $ 402,876 12.82 % $ 141,417 4.50 % N/A N/A Bank 340,918 11.00 % 139,412 4.50 % $ 201,373 6.50 % Tier 1 Capital Company 402,876 12.82 % 188,557 6.00 % N/A N/A Bank 340,918 11.00 % 185,883 6.00 % 247,844 8.00 % Total Capital Company 420,731 13.39 % 251,409 8.00 % N/A N/A Bank 361,880 11.68 % 247,844 8.00 % 309,805 10.00 % Leverage Ratio (1) Company 402,876 7.99 % 201,606 4.00 % N/A N/A Bank 340,918 6.82 % 199,919 4.00 % 249,899 5.00 % (1) 1capital

Note 10 - Income Taxes

Note 10 - Income Taxes	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	Note 10: Deferred tax assets and liabilities are recognized for future tax consequences attributable to differences between the amounts reported in the financial statements of existing assets and liabilities and their respective tax basis and operating loss and tax credit carryforwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. Amounts for the current year are based upon estimates and assumptions as of the date of these financial statements and could vary significantly from amounts shown on the tax returns as filed. The components of the net deferred tax asset are as follows: At December 31, 2016 2015 (In thousands) Deferred tax asset Allowance for credit losses $ 11,801 $ 13,466 State franchise taxes 2,679 2,612 Securities available for sale 7,283 - Deferred compensation 8,043 8,082 Real estate owned 756 1,062 Purchased assets and assumed liabilities 3,026 4,975 Post-retirement benefits 903 1,072 Employee benefit accruals 3,399 3,772 VISA Class B shares 137 1,691 Limited partnership investments 86 760 Impaired capital assets 18,465 19,074 Accrued liabilities 967 - Premises and equipment 577 205 Other 724 397 Total deferred tax asset 58,846 57,168 Deferred tax liability Net deferred loan fees 346 456 Intangible assets 2,955 4,294 Securities available for sale - 542 Other 128 128 Total deferred tax liability 3,429 5,420 Net deferred tax asset $ 55,417 $ 51,748 Based on Management’s judgment, a valuation allowance is not needed to reduce the gross deferred tax asset because it is more likely than not that the gross deferred tax asset will be realized through recoverable taxes or future taxable income. Net deferred tax assets are included with other assets in the consolidated balance sheets. The provision for federal and state income taxes consists of amounts currently payable and amounts deferred are as follows: For the Years Ended December 31, 2016 2015 2014 (In thousands) Current income tax expense: Federal $ 16,258 $ 9,647 $ 11,950 State 7,292 6,738 7,802 Total current 23,550 16,385 19,752 Deferred income tax (benefit) expense: Federal (2,604 ) 1,643 (1,220 ) State 158 (109 ) (225 ) Total deferred (2,446 ) 1,534 (1,445 ) Provision for income taxes $ 21,104 $ 17,919 $ 18,307 [The remainder of this page intentionally left blank] The provision for income taxes differs from the provision computed by applying the statutory federal income tax rate to income before taxes, as follows: For the Years Ended December 31, 2016 2015 2014 (In thousands) Federal income taxes due at statutory rate $ 27,985 $ 26,835 $ 27,634 Reductions in income taxes resulting from: Interest on state and municipal securities and loans not taxable for federal income tax purposes (8,382 ) (9,046 ) (10,173 ) State franchise taxes, net of federal income tax benefit 4,843 4,309 4,925 Tax credits (2,286 ) (2,600 ) (2,700 ) Dividend received deduction (52 ) (45 ) (39 ) Cash value life insurance (607 ) (599 ) (641 ) Other (397 ) (935 ) (699 ) Provision for income taxes $ 21,104 $ 17,919 $ 18,307 At December 31, 2016, no A reconciliation of the beginning and ending amounts of unrecognized tax benefits follow: 2016 2015 (In thousands) Balance at January 1, $ 1,243 $ 1,635 Additions for tax positions taken in the current period - - Reductions for tax positions taken in the current period - - Additions for tax positions taken in prior years - 55 Reductions for tax positions taken in prior years (144 ) (447 ) Decrease related to settlements with taxing authorities - - Decrease as a result of a lapse in statute of limitations - - Balance at December 31, $ 1,099 $ 1,243 The deductibility of these tax positions will be determined through examination by the appropriate tax jurisdictions or the expiration of the tax statute of limitations. The Company does not anticipate any significant increase or decrease in unrecognized tax benefits during 2017. December 31, 2016 2015 $57 $88 The Company classifies interest and penalties as a component of the provision for income taxes. At December 31, 2016, December 31, 2015, 2014 2013 December 31, 2015, 2014, 2013 2012

Note 11 - Fair Value Measuremen

Note 11 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Fair Value Disclosures [Text Block]	Note 11: The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Available for sale investment securities 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 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 2 Level 3 The Company relies on independent vendor pricing services to measure fair value for investment securities available for sale and investment securities held to maturity. The Company employs three 95 95:100. may 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. may twelve December 31, 2016, three March 31, 2015, 1, 2 3. three June 30, 2015, $437,715 1 $437,715 2. 1 3 June 30, 2015 December 31, 2015, 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 December 31, 2016 Fair Value Quoted Prices Significant Significant (In thousands) Securities of U.S. Government sponsored entities $ 138,660 $ - $ 138,660 $ - Agency residential MBS 691,499 - 691,499 - Non-agency residential MBS 271 - 271 - Non-agency commercial MBS 2,025 - 2,025 - Obligations of states and political subdivisions 183,411 - 183,411 - Asset-backed securities 695 - 695 - FHLMC and FNMA stock 10,869 17 10,852 - Corporate securities 860,857 - 860,857 - Other securities 2,471 656 1,815 - Total securities available for sale $ 1,890,758 $ 673 $ 1,890,085 $ - At December 31, 2015 Fair Value Quoted Prices Significant Significant (In thousands) Securities of U.S. Government sponsored entities $ 301,882 $ - $ 301,882 $ - Agency residential MBS 202,544 - 202,544 - Non-agency residential MBS 370 - 370 - Non-agency commercial MBS 2,379 - 2,379 - Obligations of states and political subdivisions 157,509 - 157,509 - Asset-backed securities 2,003 - 2,003 - FHLMC and FNMA stock 4,329 7 4,322 - Corporate securities 896,369 - 896,369 - Other securities 2,831 991 1,840 - Total securities available for sale $ 1,570,216 $ 998 $ 1,569,218 $ - Assets Recorded at Fair Value on a Nonrecurring Basis The Company may December 31, 2016 December 31, 2015, At December 31, 2016 For the Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 3,095 $ - $ - $ 3,095 $ (705 ) Impaired loans 9,525 - - 9,525 - Total assets measured at fair value on a nonrecurring basis $ 12,620 $ - $ - $ 12,620 $ (705 ) At December 31, 2015 For the Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,264 $ - $ - $ 9,264 $ (320 ) Impaired loans 15,633 - - 15,633 (449 ) Total assets measured at fair value on a nonrecurring basis $ 24,897 $ - $ - $ 24,897 $ (769 ) Level 3 third 10% 3 third 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 recorded at fair value in the balance sheet. Cash and Due from Banks Investment Securities Held to Maturity 2 Loans two $25,954 December 31, 2016 $29,771 December 31, 2015 0 $4,058 December 31, 2016 $152 $6,432 December 31, 2015 Deposit Liabilities Short-Term Borrowed Funds The table below is a summary of fair value estimates for financial instruments and the level of the fair value hierarchy within which the fair value measurements are categorized, excluding financial instruments recorded at fair value on a recurring basis. The values assigned do not necessarily represent amounts which ultimately may may The Company has not included assets and liabilities that are not financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company. At December 31, 2016 Carrying Estimated Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 462,271 $ 462,271 $ 462,271 $ - $ - Investment securities held to maturity 1,346,312 1,340,741 - 1,340,741 - Loans 1,326,757 1,337,774 - - 1,337,774 Financial Liabilities: Deposits $ 4,704,741 $ 4,702,797 $ - $ 4,448,571 $ 254,226 Short-term borrowed funds 59,078 59,078 - 59,078 - At December 31, 2015 Carrying Estimated Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 433,044 $ 433,044 $ 433,044 $ - $ - Investment securities held to maturity 1,316,075 1,325,699 - 1,325,699 - Loans 1,503,625 1,517,394 - - 1,517,394 Financial Liabilities: Deposits $ 4,540,659 $ 4,539,455 $ - $ 4,253,691 $ 285,764 Short-term borrowed funds 53,028 53,028 - 53,028 - The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

Note 12 - Lease Commitments

Note 12 - Lease Commitments	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	Note 12: Thirty banking offices and a centralized administrative service center are owned and 61 Minimum future rental payments under noncancelable operating leases as of December 31, 2016 Minimum (In thousands) 2017 $ 6,335 2018 5,665 2019 4,134 2020 2,584 2021 1,003 Thereafter 1,045 Total minimum future rental payments $ 20,766 The total minimum future rental payments have not been reduced by minimum sublease rentals of $2,157 $6,823 2016, $8,359 2015 $8,798 2014. $435 2016, $1,721 2015 $1,833 2014. $6,388 2016, $6,638 2015 $6,965 2014.

Note 13 - Commitments and Conti

Note 13 - Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	Note 13: Loan commitments are agreements to lend to a customer provided there is no violation of any condition established in the agreement. Commitments generally have fixed expiration dates or other termination clauses. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future funding requirements. Loan commitments are subject to the Company’s normal credit policies and collateral requirements. Unfunded loan commitments were $304,508 $299,884 December 31, 2016 December 31, 2015, $21,732 $26,149 December 31, 2016 December 31, 2015, 0 December 31, 2016 $40 December 31, 2015. $2,408 December 31, 2016 $2,593 December 31, 2015, Due to the nature of its business, the Company is subject to various threatened or filed legal cases. Based on the advice of legal counsel, the Company does not expect such cases will have a material, adverse effect on its financial position or results of operations. Legal liabilities are accrued when obligations become probable and the amount can be reasonably estimated.

Note 14 - Retirement Benefit Pl

Note 14 - Retirement Benefit Plans	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	Note 14: The Company sponsors a qualified defined contribution Deferred Profit-Sharing Plan covering substantially all of its salaried employees with one $1,000 2016, $734 2015 $1,002 2014. The Company also sponsors a qualified defined contribution Tax Deferred Savings/Retirement Plan (ESOP) covering salaried employees who become eligible to participate upon completion of a 90 may one $1,075 2016, $1,147 2015 $1,159 2014. The Company offers a continuation of group insurance coverage to eligible employees electing early retirement, for the period from the date of retirement until age 65. 65 February 1, 2006 January 1, 2019. December 31 The following tables set forth the net periodic post-retirement benefit cost and the change in the benefit obligation for the years ended December 31 December 31: Net Periodic Benefit Cost At December 31, 2016 2015 2014 (In thousands) Service (benefit) cost $ (153 ) $ (202 ) $ 288 Interest cost 108 106 122 Amortization of unrecognized transition obligation 61 61 61 Net periodic cost (benefit) $ 16 $ (35 ) $ 471 Other Changes in Benefit Obligations Recognized in Other Comprehensive Income Amortization of unrecognized transition obligation, net of tax (36 ) (36 ) (36 ) Total recognized in net periodic (benefit) cost and accumulated other comprehensive income $ (20 ) $ (71 ) $ 435 The remaining transition obligation cost for this post-retirement benefit plan that will be amortized from accumulated other comprehensive income into net periodic benefit cost over the next fiscal year is $61 Obligation and Funded Status At December 31, 2016 2015 2014 Change in benefit obligation (In thousands) Benefit obligation at beginning of year $ 2,522 $ 2,782 $ 2,544 Service (benefit) cost $ (153 ) (202 ) 288 Interest cost 108 106 122 Benefits paid (158 ) (164 ) (172 ) Benefit obligation at end of year $ 2,319 $ 2,522 $ 2,782 Accumulated post-retirement benefit obligation attributable to: Retirees $ 1,705 $ 1,695 $ 1,732 Fully eligible participants 606 809 998 Other 8 18 52 Total $ 2,319 $ 2,522 $ 2,782 Fair value of plan assets - - - Accumulated post-retirement benefit obligation in excess of plan assets $ 2,319 $ 2,522 $ 2,782 Additional Information Assumptions At December 31, 2016 2015 2014 Weighted-average assumptions used to determine benefit obligations Discount rate 4.10 % 4.30 % 3.80 % Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.30 % 3.80 % 4.80 % The above discount rate is based on the Corporate Aa 25 zero 2017 Assumed benefit inflation rates are not applicable for this program. Estimated (In thousands) 2017 $ 158 2018 150 2019 142 2020 135 2021 129 Years 2022-2026 552

Note 15 - Regulatory Matters

Note 15 - Regulatory Matters	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Regulatory Matters [Text Block]	Note 15: Payment of dividends to the Company by the Bank is limited under regulations for state chartered banks. The amount that can be paid in any calendar year, without prior approval from regulatory agencies, cannot exceed the net profits (as defined) for the preceding three 2016; December 31, 2016, 1972. The Bank is required to maintain reserves with the Federal Reserve Bank equal to a percentage of its reservable deposits. The Bank’s daily average on deposit at the Federal Reserve Bank was $365,880 2016 $254,600 2015,

Note 16 - Other Comprehensive I

Note 16 - Other Comprehensive Income	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	Note 16: The components of other comprehensive (loss) income and other related tax effects were: 2016 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized losses arising during the year $ (18,610 ) $ 7,825 $ (10,785 ) Reclassification of gains (losses) included in net income - - - Net unrealized losses arising during the year (18,610 ) 7,825 (10,785 ) Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive loss $ (18,549 ) $ 7,800 $ (10,749 ) 2015 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized losses arising during the year $ (8,028 ) $ 3,375 $ (4,653 ) Reclassification of gains (losses) included in net income - - - Net unrealized losses arising during the year (8,028 ) 3,375 (4,653 ) Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive loss $ (7,967 ) $ 3,350 $ (4,617 ) 2014 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized gains arising during the year $ 1,627 $ (684 ) $ 943 Reclassification of gains (losses) included in net income - - - Net unrealized gains arising during the year 1,627 (684 ) 943 Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive income $ 1,688 $ (709 ) $ 979 Accumulated other comprehensive income (loss) balances were: Post-retirement Net Unrealized Accumulated (In thousands) Balance, December 31, 2013 $ (142 ) $ 4,455 $ 4,313 Net change 36 943 979 Balance, December 31, 2014 (106 ) 5,398 5,292 Net change 36 (4,653 ) (4,617 ) Balance, December 31, 2015 (70 ) 745 675 Net change 36 (10,785 ) (10,749 ) Balance, December 31, 2016 $ (34 ) $ (10,040 ) $ (10,074 )

Note 17 - Earnings Per Common S

Note 17 - Earnings Per Common Share	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Earnings Per Share [Text Block]	Note 17: 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 Years Ended December 31, 2016 2015 2014 (In thousands, except per share data) Net income (numerator) $ 58,853 $ 58,753 $ 60,646 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,612 25,555 26,099 Basic earnings per common share $ 2.30 $ 2.30 $ 2.32 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,612 25,555 26,099 Add common stock equivalents for options 66 22 61 Weighted average number of common shares outstanding - diluted (denominator) 25,678 25,577 26,160 Diluted earnings per common share $ 2.29 $ 2.30 $ 2.32 For the years ended December 31, 2016, 2015, 2014, 773 1,313 1,133

Note 18 - Westamerica Bancorpor

Note 18 - Westamerica Bancorporation (Parent Company Only Condensed Financial Information)	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Condensed Financial Information of Parent Company Only Disclosure [Text Block]	Note 18: Statements of Income and Comprehensive (Loss) Income For the Years Ended December 31, 2016 2015 2014 (In thousands) Dividends from subsidiaries $ 56,824 $ 68,981 $ 75,369 Interest income 25 10 7 Other income 8,315 8,411 7,182 Total income 65,164 77,402 82,558 Interest on borrowings - 1 42 Salaries and benefits 7,079 6,291 6,587 Other expense 3,290 3,424 1,704 Total expense 10,369 9,716 8,333 Income before taxes and equity in undistributed income of subsidiaries 54,795 67,686 74,225 Income tax benefit 1,025 803 742 Earnings of subsidiaries greater (less) than subsidiary dividends 3,033 (9,736 ) (14,321 ) Net income 58,853 58,753 60,646 Other comprehensive (loss) income, net of tax (10,749 ) (4,617 ) 979 Comprehensive income $ 48,104 $ 54,136 $ 61,625 Balance Sheets At December 31, 2016 2015 (In thousands) Assets Cash $ 64,054 $ 26,453 Investment securities available for sale 656 991 Investment in Westamerica Bank 468,172 475,697 Investment in non-bank subsidiaries 455 455 Premises and equipment, net 9,165 9,391 Accounts receivable from Westamerica Bank 522 552 Other assets 34,077 33,850 Total assets $ 577,101 $ 547,389 Liabilities Accounts payable to Westamerica Bank $ 705 $ 737 Other liabilities 15,029 14,447 Total liabilities 15,734 15,184 Shareholders' equity 561,367 532,205 Total liabilities and shareholders' equity $ 577,101 $ 547,389 Statements of Cash Flows For the Years Ended December 31, 2016 2015 2014 (In thousands) Operating Activities Net income $ 58,853 $ 58,753 $ 60,646 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 305 326 341 Decrease (increase) in accounts receivable from affiliates 299 (217 ) (17 ) Insurance premiums paid (683 ) (637 ) (606 ) Increase in other assets (1,257 ) (1,076 ) (1,062 ) Stock option compensation expense 1,494 1,272 1,318 Tax benefit (increase) decrease upon exercise of stock options and expiration of stock options (394 ) 1,284 447 Provision (benefit) for deferred income tax 1,983 (491 ) 616 Increase (decrease) in other liabilities 1,392 743 (814 ) Earnings of subsidiaries (greater) less than subsidiary dividends (3,033 ) 9,736 14,321 Gain on sales of property and equipment (79 ) (39 ) (88 ) Net Cash Provided by Operating Activities 58,880 69,654 75,102 Investing Activities Purchases of premises and equipment - - - Net Cash Provided by Investing Activities - - - Financing Activities Exercise of stock options/issuance of shares 24,031 4,848 12,396 Taxes paid by withholding shares for tax purposes (356 ) (357 ) (521 ) Tax benefit increase (decrease) upon exercise of stock options and expiration of stock options 394 (1,284 ) (447 ) Retirement of common stock (5,424 ) (14,735 ) (52,157 ) Dividends (39,924 ) (39,124 ) (39,761 ) Net Cash Used in Financing Activities (21,279 ) (50,652 ) (80,490 ) Net change in cash 37,601 19,002 (5,388 ) Cash at Beginning of Period 26,453 7,451 12,839 Cash at End of Period $ 64,054 $ 26,453 $ 7,451 Supplemental Cash Flow Disclosures: Supplemental disclosure of cash flow activities: Interest paid for the period $ - $ 1 $ 42 Income tax payments for the period 19,264 17,666 16,412

Note 19 - Quarterly Financial I

Note 19 - Quarterly Financial Information	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Quarterly Financial Information [Text Block]	Note 19: (Unaudited) For the Three Months Ended March 31, June 30, September 30, December 31, (In thousands, expect per share data and 2016 Interest and loan fee income $ 33,647 $ 33,727 $ 33,468 $ 33,209 Net interest income 33,095 33,186 32,945 32,709 (Reversal of) provision for loan losses - - (3,200 ) - Noninterest income 11,729 11,702 11,598 11,545 Noninterest expense 25,858 25,229 26,088 24,577 Income before taxes 18,966 19,659 21,655 19,677 Net income 14,226 14,546 15,628 14,453 Basic earnings per common share 0.56 0.57 0.61 0.56 Diluted earnings per common share 0.56 0.57 0.61 0.56 Dividends paid per common share 0.39 0.39 0.39 0.39 Price range, common stock 40.72 - 49.63 45.86 - 51.53 46.61 - 50.96 48.20 - 65.34 2015 Interest and loan fee income $ 33,917 $ 34,425 $ 34,299 $ 33,888 Net interest income 33,258 33,808 33,714 33,325 Provision for loan losses - - - - Noninterest income 12,300 12,269 11,993 11,305 Noninterest expense 26,727 26,896 26,173 25,504 Income before taxes 18,831 19,181 19,534 19,126 Net income 14,557 14,761 14,857 14,578 Basic earnings per common share 0.57 0.58 0.58 0.57 Diluted earnings per common share 0.57 0.58 0.58 0.57 Dividends paid per common share 0.38 0.38 0.38 0.39 Price range, common stock 40.68 - 48.44 42.70 - 51.69 43.00 - 51.90 42.96 - 49.64 2014 Interest and loan fee income $ 35,564 $ 35,403 $ 34,900 $ 34,342 Net interest income 34,666 34,503 34,054 33,542 Provision for loan losses 1,000 1,000 600 200 Noninterest income 12,990 13,198 13,054 12,545 Noninterest expense 26,873 26,957 26,616 26,353 Income before taxes 19,783 19,744 19,892 19,534 Net income 15,307 15,157 15,154 15,028 Basic earnings per common share 0.58 0.58 0.58 0.58 Diluted earnings per common share 0.58 0.58 0.58 0.58 Dividends paid per common share 0.38 0.38 0.38 0.38 Price range, common stock 48.36 - 56.51 47.85 - 55.34 46.12 - 53.93 42.71 - 51.24

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	Accounting Estimates. Certain accounting policies underlying the preparation of these financial statements require Management to make estimates and judgments about future economic and market conditions. These estimates and judgments may 2017
Consolidation, Policy [Policy Text Block]	Principles of Consolidation. The consolidated financial statements include the accounts of the Company and all the Company’s subsidiaries. Significant intercompany transactions have been eliminated in consolidation. The Company does not maintain or conduct transactions with any unconsolidated special purpose entities.
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash. Cash includes Due From Banks balances which are readily convertible to known amounts of cash and are generally 90
Marketable Securities, Policy [Policy Text Block]	Securities. Investment securities consist of debt securities of the U.S. Treasury, government sponsored entities, states, counties, municipalities, corporations, agency and non-agency mortgage-backed securities, asset-backed securities and equity securities. Securities transactions are recorded on a trade date basis. The Company classifies its debt and marketable equity securities in one three The Company utilizes third 1 2 third one third third 3 A decline in the market value of any available for sale or held to maturity security below amortized cost that is deemed other than temporary results in a charge to earnings and the establishment of a new cost basis for the security. Unrealized investment securities losses are evaluated at least quarterly to determine whether such declines in value should be considered “other than temporary” and therefore be subject to immediate loss recognition in income. Although these evaluations involve significant judgment, an unrealized loss in the fair value of a debt security is generally deemed to be temporary when the fair value of the security is below the carrying value primarily due to changes in risk-free interest rates, there has not been significant deterioration in the financial condition of the issuer, and the Company does not intend to sell or be required to sell the securities before recovery of its amortized cost. An unrealized loss in the value of an equity security is generally considered temporary when the fair value of the security declined primarily due to current market conditions and not deterioration in the financial condition of the issuer, the Company expects the fair value of the security to recover in the near term and the Company does not intend to sell or be required to sell the securities before recovery of its cost basis. Other factors that may The Company follows the guidance issued by the Board of Governors of the Federal Reserve System, “Investing in Securities without Reliance on Nationally Recognized Statistical Rating Agencies” (SR 12 15) Purchase premiums are amortized and purchase discounts are accreted over the estimated life of the related investment security as an adjustment to yield using the effective interest method. Unamortized premiums, unaccreted discounts, and early payment premiums are recognized as a component of gain or loss on sale upon disposition of the related security. Interest and dividend income are recognized when earned. Realized gains and losses from the sale of available for sale securities are included in earnings using the specific identification method.
Cost Method Investments, Policy [Policy Text Block]	Nonmarketable Equity Securities. Nonmarketable equity securities include securities that are not publicly traded, such as Visa Class B common stock, and securities acquired to meet regulatory requirements, such as Federal Home Loan Bank and Federal Reserve Bank stock, which are restricted. These restricted securities are accounted for under the cost method and are included in other assets. The Company reviews those assets accounted for under the cost method at least quarterly for possible declines in value that are considered “other than temporary”. The Company’s review typically includes an analysis of the facts and circumstances of each investment, the expectations for the investment’s cash flows and capital needs, the viability of its business model and any exit strategy. The asset value is reduced when a decline in value is considered to be other than temporary. The Company recognizes the estimated loss in noninterest income.
Finance, Loans and Leases Receivable, Policy [Policy Text Block]	Loans. Loans are stated at the principal amount outstanding, net of unearned discount and unamortized deferred fees and costs. Interest is accrued daily on the outstanding principal balances. Loans which are more than 90 120 The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 310 40, Nonrefundable fees and certain costs associated with originating or acquiring loans are deferred and amortized as an adjustment to interest income over the contractual loan lives. Upon prepayment, unamortized loan fees, net of costs, are immediately recognized in interest income. Other fees, including those collected upon principal prepayments, are included in interest income when received. Loans held for sale are identified upon origination and are reported at the lower of cost or market value on an aggregate loan basis. Purchased Loans. Purchased loans are recorded at estimated fair value on the date of purchase. Impaired purchased loans are accounted for under FASB ASC 310 30, may 310 30. 310 30 310 30 Covered Loans. Loans covered under loss-sharing or similar credit protection agreements with the FDIC are reported in loans exclusive of the expected reimbursement cash flows from the FDIC. Covered loans are initially recorded at fair value at the acquisition date. Subsequent decreases in the amount expected to be collected results in a provision for loan losses and a corresponding increase in the estimated FDIC reimbursement, with the estimated net loss impacting earnings. Interest previously accrued on covered loans placed on nonaccrual status is charged against interest income, net of estimated FDIC reimbursements of such accrued interest. The FDIC reimburses the Company up to 80% 90
Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]	Allowance for Credit Losses. The Company extends loans to commercial and consumer customers in Northern and Central California. These lending activities expose the Company to the risk borrowers will default, causing loan losses. The Company’s lending activities are exposed to various qualitative risks. All loan segments are exposed to risks inherent in the economy and market conditions. Significant risk characteristics related to the commercial loan segment include the borrowers’ business performance and financial condition, and the value of collateral for secured loans. Significant risk characteristics related to the commercial real estate segment include the borrowers’ business performance and the value of properties collateralizing the loans. Significant risk characteristics related to the construction loan segment include the borrowers’ performance in successfully developing the real estate into the intended purpose and the value of the property collateralizing the loans. Significant risk characteristics related to the residential real estate segment include the borrowers’ financial wherewithal to service the mortgages and the value of the property collateralizing the loans. Significant risk characteristics related to the consumer loan segment include the financial condition of the borrowers and the value of collateral securing the loans. The preparation of these financial statements requires Management to estimate the amount of probable incurred losses inherent in the loan portfolio and establish an allowance for credit losses. The allowance for credit losses is established by assessing a provision for loan losses against the Company’s earnings. In estimating credit losses, Management must exercise significant judgment in evaluating information deemed relevant, such as financial information regarding individual borrowers, overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions and other information. The amount of ultimate losses on the loan portfolio can vary from the estimated amounts. Management follows a systematic methodology to estimate loss potential in an effort to reduce the differences between estimated and actual losses. The allowance for credit losses is established through provisions for credit losses charged to income. Losses on loans, including impaired loans, are charged to the allowance for loan losses when all or a portion of the recorded amount of a loan is deemed to be uncollectible. Recoveries of loans previously charged off are credited to the allowance when realized. The Company’s allowance for credit losses is maintained at a level considered adequate to provide for losses that can be estimated based upon specific and general conditions. These include conditions unique to individual borrowers, as well as overall credit loss experience, the amount of past due, nonperforming and classified loans, recommendations of regulatory authorities, prevailing economic conditions, FDIC loss-sharing or similar credit protection agreements and other factors. A portion of the allowance is specifically allocated to impaired loans whose full collectability is uncertain. Such allocations are determined by Management based on loan-by-loan analyses. The Company evaluates all classified loans and nonaccrual loans with outstanding principal balances in excess of $500 second
Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block]	Liability for Off-Balance Sheet Credit Exposures. A liability for off-balance sheet credit exposures is established through expense recognition. Off-balance sheet credit exposures relate to letters of credit and unfunded loan commitments for commercial, construction and consumer loans. Historical credit loss factors for commercial, construction and consumer loans are applied to the amount of these off-balance sheet credit exposures to estimate inherent losses.
Loans and Leases Receivable, Real Estate Acquired Through Foreclosure, Policy [Policy Text Block]	Other Real Estate Owned. Other real estate owned is comprised of property acquired through foreclosure proceedings, acceptances of deeds-in-lieu of foreclosure and, if applicable, vacated bank properties. Losses recognized at the time of acquiring property in full or partial satisfaction of debt are charged against the allowance for credit losses. Other real estate owned is recorded at the fair value of the collateral, generally based upon an independent property appraisal, less estimated disposition costs. Losses incurred subsequent to acquisition due to any decline in annual independent property appraisals are recognized as noninterest expense. Routine holding costs, such as property taxes, insurance and maintenance, and losses from sales and dispositions, are recognized as noninterest expense. Covered Other Real Estate Owned. Other real estate owned covered under loss-sharing agreements with the FDIC is reported exclusive of expected reimbursement cash flows from the FDIC. Upon transferring covered loan collateral to covered other real estate owned status, the covered loan collateral is recorded at fair value, generally based upon an independent property appraisal, less estimated disposition costs with losses charged against acquisition date fair value discounts; the amount of losses exceeding acquisition date fair value discounts are recognized as noninterest expense inclusive of expected reimbursement cash flows from the FDIC. Subsequent losses incurred due to any decline in annual independent property appraisal valuations are recognized as noninterest expense inclusive of expected reimbursement cash flows from the FDIC.
Property, Plant and Equipment, Policy [Policy Text Block]	Premises and Equipment. Premises and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is computed substantially on the straight-line method over the estimated useful life of each type of asset. Estimated useful lives of premises and equipment range from 20 50 3 20
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition. The Company recognizes revenue as it is earned based on contractual terms, as transactions occur, or as services are provided and collectability is reasonably assured. In certain circumstances, noninterest income is reported net of associated expenses that are directly related to variable volume-based sales or revenue sharing arrangements or when the Company acts on an agency basis for others.
Life Insurance Cash Surrender Value [Policy Text Block]	Life Insurance Cash Surrender Value. The Company has purchased life insurance policies on certain directors and officers as well as acquired such assets as part of the acquisition of other banks. Company owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement. These assets are included in other assets on the consolidated balance sheets.
Goodwill and Intangible Assets, Policy [Policy Text Block]	Intangible Assets. Intangible assets are comprised of goodwill, core deposit intangibles and other identifiable intangibles acquired in business combinations. Intangible assets with definite useful lives are amortized on an accelerated basis over their respective estimated useful lives not exceeding 15 may first 2011 08, Testing for Goodwill Impairment. first
Impairment of Long Lived Assets [Policy Text Block]	Impairment of Long-Lived Assets. The Company reviews its long-lived and certain intangible assets for impairment whenever events or changes indicate that the carrying amount of an asset may
Income Tax, Policy [Policy Text Block]	Income Taxes. The Company and its subsidiaries file consolidated tax returns. The Company accounts for income taxes in accordance with FASB ASC 740, two fifty
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Stock Options. The Company applies FASB ASC 718
Extinguishment of Debt [Policy Text Block]	Extinguishment of Debt. Gains and losses, including fees, incurred in connection with the early extinguishment of debt are charged to current earnings as reductions in noninterest income.
Postemployment Benefit Plans, Policy [Policy Text Block]	Postretirement Benefits. The Company uses an actuarial-based accrual method of accounting for post-retirement benefits.
Fiduciary [Policy Text Block]	Other. Securities and other property held by the Bank in a fiduciary or agency capacity are not included in the financial statements since such items are not assets of the Company or its subsidiaries.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Standards FASB Accounting Standards Update (ASU) 2016 01 Financial Instruments – Overall (Subtopic 825 10): January 2016. The Company will be required to adopt the ASU provisions on January 1, 2018. FASB Accounting Standards Update (ASU) 2016 02, Leases (Topic 842), February 25, 2016. January 1, 2019, FASB ASU 2016 09, Improvements to Employee Share-Based Payment Accounting, March 30, 2016. (1) (2) (3) January 1, 2017. 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.

Note 2 - Investment Securities

Note 2 - Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 141,599 $ 35 $ (2,974 ) $ 138,660 Agency residential mortgage-backed securities (MBS) 711,623 921 (21,045 ) 691,499 Non-agency residential MBS 272 - (1 ) 271 Non-agency commercial MBS 2,041 - (16 ) 2,025 Obligations of states and political subdivisions 182,230 5,107 (3,926 ) 183,411 Asset-backed securities 696 - (1 ) 695 FHLMC (1) (2) 749 10,120 - 10,869 Corporate securities 866,835 1,690 (7,668 ) 860,857 Other securities 2,034 621 (184 ) 2,471 Total $ 1,908,079 $ 18,494 $ (35,815 ) $ 1,890,758 Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 302,292 $ 255 $ (665 ) $ 301,882 Agency residential MBS 208,046 1,407 (6,909 ) 202,544 Non-agency residential MBS 354 16 - 370 Non-agency commercial MBS 2,383 5 (9 ) 2,379 Obligations of states and political subdivisions 148,705 8,861 (57 ) 157,509 Asset-backed securities 2,025 - (22 ) 2,003 FHLMC (1) (2) 775 3,554 - 4,329 Corporate securities 902,308 882 (6,821 ) 896,369 Other securities 2,039 952 (160 ) 2,831 Total $ 1,568,927 $ 15,932 $ (14,643 ) $ 1,570,216
Held-to-maturity Securities [Table Text Block]	Investment Securities Held to Maturity Amortized Gross Gross Fair (In thousands) Securities of U.S. Government sponsored entities $ 581 $ 1 $ - $ 582 Agency residential MBS 668,235 1,122 (8,602 ) 660,755 Non-agency residential MBS 5,370 76 - 5,446 Agency commercial MBS 9,332 11 (143 ) 9,200 Obligations of states and political subdivisions 662,794 6,031 (4,067 ) 664,758 Total $ 1,346,312 $ 7,241 $ (12,812 ) $ 1,340,741 Investment Securities Held to Maturity Amortized Gross Gross Fair (In thousands) Securities of U.S. government sponsored entities $ 764 $ - $ - $ 764 Agency residential MBS 595,503 1,810 (4,966 ) 592,347 Non-agency residential MBS 9,667 185 - 9,852 Agency commercial MBS 16,258 20 (274 ) 16,004 Obligations of states and political subdivisions 693,883 13,638 (789 ) 706,732 Total $ 1,316,075 $ 15,653 $ (6,029 ) $ 1,325,699
Investments Classified by Contractual Maturity Date [Table Text Block]	At December 31, 2016 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 154,693 $ 154,835 $ 14,961 $ 15,639 Over 1 to 5 years 750,834 745,219 292,024 292,062 Over 5 to 10 years 238,077 239,153 318,580 319,587 Over 10 years 47,756 44,416 37,810 38,052 Subtotal 1,191,360 1,183,623 663,375 665,340 MBS 713,936 693,795 682,937 675,401 Other securities 2,783 13,340 - - Total $ 1,908,079 $ 1,890,758 $ 1,346,312 $ 1,340,741 At December 31, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 136,717 $ 136,976 $ 20,709 $ 21,354 Over 1 to 5 years 1,049,786 1,044,453 259,556 262,163 Over 5 to 10 years 166,352 173,585 289,568 296,352 Over 10 years 2,475 2,749 124,814 127,627 Subtotal 1,355,330 1,357,763 694,647 707,496 MBS 210,783 205,293 621,428 618,203 Other securities 2,814 7,160 - - Total $ 1,568,927 $ 1,570,216 $ 1,316,075 $ 1,325,699
Schedule of Unrealized Loss on Investments [Table Text Block]	Investment Securities Available for Sale 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 8 $ 117,227 $ (2,974 ) - $ - $ - 8 $ 117,227 $ (2,974 ) Agency residential MBS 21 524,269 (16,494 ) 28 122,901 (4,551 ) 49 647,170 (21,045 ) Non-agency residential MBS 2 246 (1 ) - - - 2 246 (1 ) Non-agency commercial MBS 2 1,253 (9 ) 1 772 (7 ) 3 2,025 (16 ) Obligations of states and political subdivisions 43 57,989 (3,905 ) 3 1,117 (21 ) 46 59,106 (3,926 ) Asset-backed securities - - - 1 695 (1 ) 1 695 (1 ) Corporate securities 53 385,175 (6,551 ) 27 96,145 (1,117 ) 80 481,320 (7,668 ) Other securities - - - 1 1,816 (184 ) 1 1,816 (184 ) Total 129 $ 1,086,159 $ (29,934 ) 61 $ 223,446 $ (5,881 ) 190 $ 1,309,605 $ (35,815 ) Investment Securities Held to Maturity 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 66 $ 569,876 $ (8,285 ) 3 $ 10,480 $ (317 ) 69 $ 580,356 $ (8,602 ) Agency commercial MBS - - - 1 7,214 (143 ) 1 7,214 (143 ) Obligations of states and political subdivisions 295 272,496 (3,710 ) 12 13,126 (357 ) 307 285,622 (4,067 ) Total 361 $ 842,372 $ (11,995 ) 16 $ 30,820 $ (817 ) 377 $ 873,192 $ (12,812 ) Investment Securities Available for Sale 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 8 $ 121,392 $ (665 ) - $ - $ - 8 $ 121,392 $ (665 ) Agency residential MBS 2 12,491 (366 ) 31 161,296 (6,543 ) 33 173,787 (6,909 ) Non-agency commercial MBS 1 1,071 - 1 855 (9 ) 2 1,926 (9 ) Obligations of states and political subdivisions 3 2,728 (18 ) 4 1,644 (39 ) 7 4,372 (57 ) Asset-backed securities - - - 1 2,003 (22 ) 1 2,003 (22 ) Corporate securities 97 548,177 (5,442 ) 25 86,762 (1,379 ) 122 634,939 (6,821 ) Other securities - - - 1 1,840 (160 ) 1 1,840 (160 ) Total 111 $ 685,859 $ (6,491 ) 63 $ 254,400 $ (8,152 ) 174 $ 940,259 $ (14,643 ) Investment Securities Held to Maturity 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 41 $ 426,317 $ (3,490 ) 13 $ 62,041 $ (1,476 ) 54 $ 488,358 $ (4,966 ) Agency commercial MBS - - - 2 13,951 (274 ) 2 13,951 (274 ) Obligations of states and political subdivisions 55 44,585 (249 ) 54 42,081 (540 ) 109 86,666 (789 ) Total 96 $ 470,902 $ (3,739 ) 69 $ 118,073 $ (2,290 ) 165 $ 588,975 $ (6,029 )
Interest Income from Investments [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Taxable $ 42,718 $ 34,472 $ 24,766 Tax-exempt from regular federal income tax 22,194 23,616 26,387 Total interest income from investment securities $ 64,912 $ 58,088 $ 51,153

Note 3 - Loans and Allowance 29

Note 3 - Loans and Allowance for Credit Losses (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Loans Receivable [Table Text Block]	At December 31, 2016 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 1,235,559 Purchased covered loans - - - 2,086 8,941 11,027 Purchased non-covered loans : Gross purchased non-covered loans 12,452 71,250 146 222 26,113 110,183 Purchased loan discount (547 ) (2,637 ) - (23 ) (851 ) (4,058 ) Total $ 354,697 $ 542,171 $ 2,555 $ 87,724 $ 365,564 $ 1,352,711 At December 31, 2015 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 1,351,839 Purchased covered loans : Gross purchased covered loans - - - 2,385 11,828 14,213 Purchased loan discount - - - (133 ) (19 ) (152 ) Purchased non-covered loans : Gross purchased non-covered loans 15,620 124,650 973 231 32,454 173,928 Purchased loan discount (989 ) (4,264 ) - (23 ) (1,156 ) (6,432 ) Total $ 382,748 $ 637,456 $ 3,951 $ 120,091 $ 389,150 $ 1,533,396
Impaired Purchased Loans Roll Forward [Table Text Block]	For the Years Ended December 31, 2016 2015 Impaired purchased loans (In thousands) Carrying amount at the beginning of the period $ 3,887 $ 4,672 Reductions during the period (3,022 ) (785 ) Carrying amount at the end of the period $ 865 $ 3,887
Accretable Yield Reconciliation Schedule [Table Text Block]	For the Years Ended December 31, 2016 2015 Accretable yield: (In thousands) Balance at the beginning of the period $ 1,259 $ 2,261 Reclassification from nonaccretable difference 3,912 3,051 Accretion (3,934 ) (4,053 ) Balance at the end of the period $ 1,237 $ 1,259 Accretion $ (3,934 ) $ (4,053 ) Change in FDIC indemnification 1,053 698 (Increase) in interest income $ (2,881 ) $ (3,355 )
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]	Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Additions: (Reversal) provision (2,065 ) (954 ) (34 ) (493 ) 2,344 (923 ) 53 (1,128 ) (3,200 ) Deductions: Chargeoffs (2,023 ) - - - (4,404 ) (345 ) - - (6,772 ) Recoveries 2,836 60 - - 1,512 1,747 - - 6,155 Net loan recoveries (losses) 813 60 - - (2,892 ) 1,402 - - (617 ) Total allowance for loan losses $ 8,307 $ 3,330 $ 143 $ 1,308 $ 6,532 $ 1,446 $ 53 $ 4,835 $ 25,954 Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,460 $ 4,245 $ 644 $ 2,241 $ 7,717 $ 2,120 $ - $ 9,058 $ 31,485 Additions: Provision (reversal) 3,702 356 (512 ) (440 ) 950 (961 ) - (3,095 ) - Deductions: Chargeoffs (756 ) (449 ) - - (3,493 ) (431 ) - - (5,129 ) Recoveries 1,153 72 45 - 1,906 239 - - 3,415 Net loan recoveries (losses) 397 (377 ) 45 - (1,587 ) (192 ) - - (1,714 ) Total allowance for loan losses $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Allowance for Credit Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 4,005 $ 12,070 $ 602 $ 405 $ 3,198 $ - $ 1,561 $ 9,852 $ 31,693 Additions: Provision (reversal) 1,095 (7,276 ) 39 1,866 6,864 1,006 - (794 ) 2,800 Deductions: Chargeoffs (1,890 ) (762 ) - (30 ) (4,214 ) (522 ) - - (7,418 ) Recoveries 2,250 213 3 - 1,869 75 - - 4,410 Net loan recoveries (losses) 360 (549 ) 3 (30 ) (2,345 ) (447 ) - - (3,008 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 5,460 4,245 644 2,241 7,717 2,120 - 9,058 31,485 Liability for off-balance sheet credit exposure 2,408 - 344 - 437 - - (496 ) 2,693 Total allowance for credit losses $ 7,868 $ 4,245 $ 988 $ 2,241 $ 8,154 $ 2,120 $ - $ 8,562 $ 34,178
Schedule of Recorded Investment in Loans Evaluated for Impairment [Table Text Block]	Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Construction Residential Consumer Purchased Non- Purchased Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 5,048 $ - $ - $ - $ - $ - $ - $ - $ 5,048 Collectively evaluated for impairment 3,259 3,330 143 1,308 6,532 1,446 53 4,835 20,906 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 8,307 $ 3,330 $ 143 $ 1,308 $ 6,532 $ 1,446 $ 53 $ 4,835 $ 25,954 Carrying value of loans: Individually evaluated for impairment $ 11,140 $ 5,264 $ - $ - $ - $ 7,694 $ 617 $ - $ 24,715 Collectively evaluated for impairment 331,652 468,294 2,409 85,439 331,361 97,751 10,225 - 1,327,131 Purchased loans with evidence of credit deterioration - - - - - 680 185 - 865 Total $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 106,125 $ 11,027 $ - $ 1,352,711 Allowance for Loan Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Construction Residential Consumer Purchased Non- Purchased Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 4,942 $ 585 $ - $ - $ - $ - $ - $ - $ 5,527 Collectively evaluated for impairment 4,617 3,639 177 1,801 7,080 967 - 5,963 24,244 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 9,559 $ 4,224 $ 177 $ 1,801 $ 7,080 $ 967 $ - $ 5,963 $ 29,771 Carrying value of loans: Individually evaluated for impairment $ 12,587 $ 5,541 $ - $ - $ - $ 11,777 $ - $ - $ 29,905 Collectively evaluated for impairment 355,530 511,529 2,978 117,631 346,043 152,038 13,855 - 1,499,604 Purchased loans with evidence of credit deterioration - - - - - 3,681 206 - 3,887 Total $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 167,496 $ 14,061 $ - $ 1,533,396
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade Commercial Commercial Construction Residential Consumer Purchased Non- Purchased (1) Total (In thousands) Grade: Pass $ 329,964 $ 459,771 $ 2,409 $ 82,715 $ 329,961 $ 95,373 $ 9,419 $ 1,309,612 Substandard 12,828 13,787 - 2,724 1,056 13,368 1,608 45,371 Doubtful - - - - 6 1,300 - 1,306 Loss - - - - 338 142 - 480 Purchased loan discount - - - - - (4,058 ) - (4,058 ) Total $ 342,792 $ 473,558 $ 2,409 $ 85,439 $ 331,361 $ 106,125 $ 11,027 $ 1,352,711 Credit Risk Profile by Internally Assigned Grade Commercial Commercial Construction Residential Consumer Purchased Non- Purchased (1) Total (In thousands) Grade: Pass $ 353,474 $ 496,744 $ 2,978 $ 114,525 $ 344,876 $ 149,100 $ 12,563 $ 1,474,260 Substandard 14,643 20,326 - 3,106 781 24,810 1,650 65,316 Doubtful - - - - 12 18 - 30 Loss - - - - 374 - - 374 Purchased loan discount - - - - - (6,432 ) (152 ) (6,584 ) Total $ 368,117 $ 517,070 $ 2,978 $ 117,631 $ 346,043 $ 167,496 $ 14,061 $ 1,533,396
Past Due Financing Receivables [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 341,632 $ 926 $ 40 $ - $ 194 $ 342,792 Commercial real estate 467,529 407 445 - 5,177 473,558 Construction 2,183 226 - - - 2,409 Residential real estate 84,430 528 37 - 444 85,439 Consumer installment and other 327,029 3,028 949 355 - 331,361 Total originated loans 1,222,803 5,115 1,471 355 5,815 1,235,559 Purchased non-covered loans 102,878 1,353 40 142 1,712 106,125 Purchased covered loans 10,169 - - - 858 11,027 Total $ 1,335,850 $ 6,468 $ 1,511 $ 497 $ 8,385 $ 1,352,711 Summary of Loans by Delinquency and Nonaccrual Status Current and 30-59 Days 60-89 Days Past Due 90 Nonaccrual Total Loans (In thousands) Commercial $ 365,450 $ 1,777 $ 122 $ - $ 768 $ 368,117 Commercial real estate 504,970 5,930 726 - 5,444 517,070 Construction 2,978 - - - - 2,978 Residential real estate 115,575 1,202 414 - 440 117,631 Consumer installment and other 341,566 3,263 919 295 - 346,043 Total originated loans 1,330,539 12,172 2,181 295 6,652 1,351,839 Purchased non-covered loans 158,554 589 7 - 8,346 167,496 Purchased covered loans 13,929 132 - - - 14,061 Total $ 1,503,022 $ 12,893 $ 2,188 $ 295 $ 14,998 $ 1,533,396
Effect Of Nonaccrual Loans On Interest Income [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 874 $ 1,277 $ 1,146 Interest income recognized on nonaccrual loans (1,097 ) (362 ) (60 ) Total (addition) reduction of interest income $ (223 ) $ 915 $ 1,086
Impaired Financing Receivables [Table Text Block]	Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 1,234 $ 1,303 $ - Commercial real estate 13,233 15,610 - Construction - - - Residential real estate 1,279 1,309 - Consumer installment and other 569 675 - Impaired loans with an allowance recorded: Commercial 10,163 10,172 5,048 Commercial real estate - - - Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 11,397 $ 11,475 $ 5,048 Commercial real estate 13,233 15,610 - Construction - - - Residential real estate 1,279 1,309 - Consumer installment and other 569 675 - Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,917 $ 2,979 $ - Commercial real estate 16,309 21,168 - Construction 271 271 - Residential real estate 666 697 - Consumer installment and other 350 456 - Impaired loans with an allowance recorded: Commercial 10,170 10,170 4,942 Commercial real estate 4,660 5,109 585 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 13,087 $ 13,149 $ 4,942 Commercial real estate 20,969 26,277 585 Construction 271 271 - Residential real estate 666 697 - Consumer installment and other 350 456 -
Impaired Financing Receivables Supplemental Schedule [Table Text Block]	Impaired Loans 2016 2015 2014 Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,923 $ 512 $ 12,631 $ 584 $ 5,240 $ 325 Commercial real estate 16,701 725 20,307 674 19,880 469 Construction 102 - 263 - 2,015 - Residential real estate 746 19 643 31 153 - Consumer installment and other 473 25 739 25 1,399 29 Total $ 30,945 $ 1,281 $ 34,583 $ 1,314 $ 28,687 $ 823
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End ($ in thousands) Commercial 7 $ 2,719 $ 1,489 $ 113 Commercial real estate 10 11,257 10,673 - Residential real estate 1 241 219 - Total 18 $ 14,217 $ 12,381 $ 113 Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End ($ in thousands) Commercial 6 $ 3,138 $ 2,802 $ 194 Commercial real estate 10 12,927 12,684 - Residential real estate 1 242 226 - Total 17 $ 16,307 $ 15,712 $ 194 Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 3 $ 2,075 $ 1,901 $ - Commercial real estate 4 2,890 2,928 - Consumer installment and other 1 18 8 - Total 8 $ 4,983 $ 4,837 $ -

Note 5 - Premises, Equipment 30

Note 5 - Premises, Equipment and Other Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Premises and Equipment [Table Text Block]	At December 31, Cost Accumulated Net Book Value (In thousands) 2016 Land $ 11,896 $ - $ 11,896 Building and improvements 40,992 (25,180 ) 15,812 Leasehold improvements 5,922 (4,599 ) 1,323 Furniture and equipment 21,874 (14,339 ) 7,535 Total $ 80,684 $ (44,118 ) $ 36,566 2015 Land $ 11,896 $ - $ 11,896 Building and improvements 40,795 (24,024 ) 16,771 Leasehold improvements 5,696 (4,628 ) 1,068 Furniture and equipment 24,266 (15,308 ) 8,958 Total $ 82,653 $ (43,960 ) $ 38,693
Schedule of Other Assets [Table Text Block]	At December 31, 2016 2015 (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Other investments 201 201 Total cost method equity investments 14,270 14,270 Life insurance cash surrender value 51,535 48,972 Net deferred tax asset 55,417 51,748 Limited partnership investments 12,591 15,259 Interest receivable 21,489 20,174 Prepaid assets 4,825 4,771 Other assets 11,597 10,660 Total other assets $ 171,724 $ 165,854
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Investment loss included in pre-tax income $ 2,475 $ 2,850 $ 2,950 Tax credits recognized in provision for income taxes 2,286 2,650 2,825

Note 6 - Goodwill and Identif31

Note 6 - Goodwill and Identifiable Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Goodwill [Table Text Block]	At December 31, 2016 2015 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At December 31, 2016 At December 31, 2015 Gross Accumulated Gross Accumulated (In thousands) Core Deposit Intangibles $ 56,808 $ (50,074 ) $ 56,808 $ (46,782 ) Merchant Draft Processing Intangible 10,300 (10,107 ) 10,300 (9,895 ) Total Identifiable Intangible Assets $ 67,108 $ (60,181 ) $ 67,108 $ (56,677 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Core Merchant Total (In thousands) For the Year Ended December 31, 2016 (actual) $ 3,292 $ 212 $ 3,504 Estimate for the Year Ended December 31, 2017 2,913 164 3,077 2018 1,892 29 1,921 2019 538 - 538 2020 287 - 287 2021 269 - 269

Note 7 - Deposits and Borrowe32

Note 7 - Deposits and Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Deposits [Table Text Block]	Deposits At December 31, 2016 2015 (In thousands) Noninterest-bearing $ 2,089,443 $ 2,026,049 Interest-bearing: Transaction 865,701 860,706 Savings 1,493,427 1,366,936 Time deposits less than $100 thousand 133,712 150,780 Time deposits $100 thousand through $250 thousand 84,925 96,971 Time deposits more than $250 thousand 37,533 39,217 Total deposits $ 4,704,741 $ 4,540,659
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) Remaining Contractual Maturity of the Agreements At December 31, 2016 2015 Repurchase agreements: (In thousands) Collateral securing borrowings: Securities of U.S. Government sponsored entities $ 74,031 $ 98,969 Agency residential MBS 63,277 - Obligations of states and political subdivisions - 3,975 Corporate securities 90,554 54,681 Total collateral carrying value $ 227,862 $ 157,625 Total short-term borrowed funds $ 59,078 $ 53,028
Borrowed Funds Highest Month End Balance [Table Text Block]	For the Years Ended December 31, 2016 2015 Highest Balance at Any Month-end (In thousands) Securities sold under repurchase agreements $ 74,815 $ 89,484

Note 8 - Shareholders' Equity (

Note 8 - Shareholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]	Options Outstanding Options Exercisable At December 31, 2016 For the Year At December 31, 2016 For the Year Range of Exercise Price Number Aggregate Weighted Weighted Number Aggregate Weighted Weighted (In thousands) (Years) (In thousands) (Years) $40 - 45 594 $ 12,072 8.1 $ 43 107 $ 2,105 5.4 $ 43 45 - 50 112 1,791 2.4 47 112 1,791 2.4 47 50 - 55 472 5,360 3.9 52 406 4,724 3.4 51 55 - 60 95 596 3.1 57 95 596 3.1 57 $40 - 60 1,273 $ 19,819 5.7 47 720 $ 9,216 3.5 50
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 Expected volatility (1) 22 % 20 % 16 % Expected life in years (2) 4.8 4.9 4.9 Risk-free interest rate 1.41 % 1.36 % 1.59 % Expected dividend yield (3) 4.49 % 3.64 % 3.32 % Fair value per award $ 5.97 $ 5.46 $ 5.91
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Shares Weighted Weighted (In thousands) (Years) Outstanding at January 1, 2016 1,549 $ 48.83 Granted 325 42.33 Exercised (500 ) 48.08 Forfeited or expired (101 ) 50.17 Outstanding at December 31, 2016 1,273 47.36 5.7 Exercisable at December 31, 2016 720 50.12 3.5
Schedule of Nonvested Share Activity [Table Text Block]	Shares Weighted (In thousands) Nonvested at January 1, 2016 493 $ 5.45 Granted 325 5.97 Vested (239 ) 5.32 Forfeited (26 ) 5.82 Nonvested at December 31, 2016 553 $ 5.80
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]	2016 2015 (In thousands) Outstanding at January 1, 45 50 Granted 18 21 Issued upon vesting (15 ) (17 ) Forfeited - (9 ) Outstanding at December 31, 48 45

Note 9 - Risk-based Capital (Ta

Note 9 - Risk-based Capital (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]	At December 31, 2016 Required To Be Well-capitalized Amount Ratio Amount Ratio Amount Ratio ($ in thousands) Common Equity Tier 1 Capital Company $ 443,574 14.85 % $ 153,126 5.125 % (1) N/A N/A Bank 344,739 11.70 % 150,982 5.125 % (1) $ 191,489 6.50 % Tier 1 Capital Company 443,574 14.85 % 197,944 6.625 % (1) N/A N/A Bank 344,739 11.70 % 195,172 6.625 % (1) 235,680 8.00 % Total Capital Company 476,595 15.95 % 257,700 8.625 % (1) N/A N/A Bank 383,572 13.02 % 254,092 8.625 % (1) 294,600 10.00 % Leverage Ratio (2) Company 443,574 8.46 % 209,702 4.000 % N/A N/A Bank 344,739 6.63 % 208,005 4.000 % 260,006 5.00 % At December 31, 2015 Required To Be Well-capitalized Amount Ratio Amount Ratio Amount Ratio ($ in thousands) Common Equity Tier 1 Capital Company $ 402,876 12.82 % $ 141,417 4.50 % N/A N/A Bank 340,918 11.00 % 139,412 4.50 % $ 201,373 6.50 % Tier 1 Capital Company 402,876 12.82 % 188,557 6.00 % N/A N/A Bank 340,918 11.00 % 185,883 6.00 % 247,844 8.00 % Total Capital Company 420,731 13.39 % 251,409 8.00 % N/A N/A Bank 361,880 11.68 % 247,844 8.00 % 309,805 10.00 % Leverage Ratio (1) Company 402,876 7.99 % 201,606 4.00 % N/A N/A Bank 340,918 6.82 % 199,919 4.00 % 249,899 5.00 %

Note 10 - Income Taxes (Tables)

Note 10 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	At December 31, 2016 2015 (In thousands) Deferred tax asset Allowance for credit losses $ 11,801 $ 13,466 State franchise taxes 2,679 2,612 Securities available for sale 7,283 - Deferred compensation 8,043 8,082 Real estate owned 756 1,062 Purchased assets and assumed liabilities 3,026 4,975 Post-retirement benefits 903 1,072 Employee benefit accruals 3,399 3,772 VISA Class B shares 137 1,691 Limited partnership investments 86 760 Impaired capital assets 18,465 19,074 Accrued liabilities 967 - Premises and equipment 577 205 Other 724 397 Total deferred tax asset 58,846 57,168 Deferred tax liability Net deferred loan fees 346 456 Intangible assets 2,955 4,294 Securities available for sale - 542 Other 128 128 Total deferred tax liability 3,429 5,420 Net deferred tax asset $ 55,417 $ 51,748
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Current income tax expense: Federal $ 16,258 $ 9,647 $ 11,950 State 7,292 6,738 7,802 Total current 23,550 16,385 19,752 Deferred income tax (benefit) expense: Federal (2,604 ) 1,643 (1,220 ) State 158 (109 ) (225 ) Total deferred (2,446 ) 1,534 (1,445 ) Provision for income taxes $ 21,104 $ 17,919 $ 18,307
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Federal income taxes due at statutory rate $ 27,985 $ 26,835 $ 27,634 Reductions in income taxes resulting from: Interest on state and municipal securities and loans not taxable for federal income tax purposes (8,382 ) (9,046 ) (10,173 ) State franchise taxes, net of federal income tax benefit 4,843 4,309 4,925 Tax credits (2,286 ) (2,600 ) (2,700 ) Dividend received deduction (52 ) (45 ) (39 ) Cash value life insurance (607 ) (599 ) (641 ) Other (397 ) (935 ) (699 ) Provision for income taxes $ 21,104 $ 17,919 $ 18,307
Summary of Income Tax Contingencies [Table Text Block]	2016 2015 (In thousands) Balance at January 1, $ 1,243 $ 1,635 Additions for tax positions taken in the current period - - Reductions for tax positions taken in the current period - - Additions for tax positions taken in prior years - 55 Reductions for tax positions taken in prior years (144 ) (447 ) Decrease related to settlements with taxing authorities - - Decrease as a result of a lapse in statute of limitations - - Balance at December 31, $ 1,099 $ 1,243

Note 11 - Fair Value Measurem36

Note 11 - Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At December 31, 2016 Fair Value Quoted Prices Significant Significant (In thousands) Securities of U.S. Government sponsored entities $ 138,660 $ - $ 138,660 $ - Agency residential MBS 691,499 - 691,499 - Non-agency residential MBS 271 - 271 - Non-agency commercial MBS 2,025 - 2,025 - Obligations of states and political subdivisions 183,411 - 183,411 - Asset-backed securities 695 - 695 - FHLMC and FNMA stock 10,869 17 10,852 - Corporate securities 860,857 - 860,857 - Other securities 2,471 656 1,815 - Total securities available for sale $ 1,890,758 $ 673 $ 1,890,085 $ - At December 31, 2015 Fair Value Quoted Prices Significant Significant (In thousands) Securities of U.S. Government sponsored entities $ 301,882 $ - $ 301,882 $ - Agency residential MBS 202,544 - 202,544 - Non-agency residential MBS 370 - 370 - Non-agency commercial MBS 2,379 - 2,379 - Obligations of states and political subdivisions 157,509 - 157,509 - Asset-backed securities 2,003 - 2,003 - FHLMC and FNMA stock 4,329 7 4,322 - Corporate securities 896,369 - 896,369 - Other securities 2,831 991 1,840 - Total securities available for sale $ 1,570,216 $ 998 $ 1,569,218 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	At December 31, 2016 For the Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 3,095 $ - $ - $ 3,095 $ (705 ) Impaired loans 9,525 - - 9,525 - Total assets measured at fair value on a nonrecurring basis $ 12,620 $ - $ - $ 12,620 $ (705 ) At December 31, 2015 For the Carrying Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,264 $ - $ - $ 9,264 $ (320 ) Impaired loans 15,633 - - 15,633 (449 ) Total assets measured at fair value on a nonrecurring basis $ 24,897 $ - $ - $ 24,897 $ (769 )
Fair Value, by Balance Sheet Grouping [Table Text Block]	At December 31, 2016 Carrying Estimated Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 462,271 $ 462,271 $ 462,271 $ - $ - Investment securities held to maturity 1,346,312 1,340,741 - 1,340,741 - Loans 1,326,757 1,337,774 - - 1,337,774 Financial Liabilities: Deposits $ 4,704,741 $ 4,702,797 $ - $ 4,448,571 $ 254,226 Short-term borrowed funds 59,078 59,078 - 59,078 - At December 31, 2015 Carrying Estimated Quoted Prices Significant Significant Financial Assets: (In thousands) Cash and due from banks $ 433,044 $ 433,044 $ 433,044 $ - $ - Investment securities held to maturity 1,316,075 1,325,699 - 1,325,699 - Loans 1,503,625 1,517,394 - - 1,517,394 Financial Liabilities: Deposits $ 4,540,659 $ 4,539,455 $ - $ 4,253,691 $ 285,764 Short-term borrowed funds 53,028 53,028 - 53,028 -

Note 12 - Lease Commitments (Ta

Note 12 - Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	Minimum (In thousands) 2017 $ 6,335 2018 5,665 2019 4,134 2020 2,584 2021 1,003 Thereafter 1,045 Total minimum future rental payments $ 20,766

Note 14 - Retirement Benefit 38

Note 14 - Retirement Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Net Benefit Costs [Table Text Block]	At December 31, 2016 2015 2014 (In thousands) Service (benefit) cost $ (153 ) $ (202 ) $ 288 Interest cost 108 106 122 Amortization of unrecognized transition obligation 61 61 61 Net periodic cost (benefit) $ 16 $ (35 ) $ 471 Amortization of unrecognized transition obligation, net of tax (36 ) (36 ) (36 ) Total recognized in net periodic (benefit) cost and accumulated other comprehensive income $ (20 ) $ (71 ) $ 435
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	At December 31, 2016 2015 2014 Change in benefit obligation (In thousands) Benefit obligation at beginning of year $ 2,522 $ 2,782 $ 2,544 Service (benefit) cost $ (153 ) (202 ) 288 Interest cost 108 106 122 Benefits paid (158 ) (164 ) (172 ) Benefit obligation at end of year $ 2,319 $ 2,522 $ 2,782 Accumulated post-retirement benefit obligation attributable to: Retirees $ 1,705 $ 1,695 $ 1,732 Fully eligible participants 606 809 998 Other 8 18 52 Total $ 2,319 $ 2,522 $ 2,782 Fair value of plan assets - - - Accumulated post-retirement benefit obligation in excess of plan assets $ 2,319 $ 2,522 $ 2,782
Schedule of Assumptions Used [Table Text Block]	At December 31, 2016 2015 2014 Weighted-average assumptions used to determine benefit obligations Discount rate 4.10 % 4.30 % 3.80 % Weighted-average assumptions used to determine net periodic benefit cost Discount rate 4.30 % 3.80 % 4.80 %
Schedule of Expected Benefit Payments [Table Text Block]	Estimated (In thousands) 2017 $ 158 2018 150 2019 142 2020 135 2021 129 Years 2022-2026 552

Note 16 - Other Comprehensive39

Note 16 - Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Comprehensive Income (Loss) [Table Text Block]	2016 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized losses arising during the year $ (18,610 ) $ 7,825 $ (10,785 ) Reclassification of gains (losses) included in net income - - - Net unrealized losses arising during the year (18,610 ) 7,825 (10,785 ) Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive loss $ (18,549 ) $ 7,800 $ (10,749 ) 2015 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized losses arising during the year $ (8,028 ) $ 3,375 $ (4,653 ) Reclassification of gains (losses) included in net income - - - Net unrealized losses arising during the year (8,028 ) 3,375 (4,653 ) Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive loss $ (7,967 ) $ 3,350 $ (4,617 ) 2014 Before tax Tax effect Net of tax (In thousands) Securities available for sale: Net unrealized gains arising during the year $ 1,627 $ (684 ) $ 943 Reclassification of gains (losses) included in net income - - - Net unrealized gains arising during the year 1,627 (684 ) 943 Post-retirement benefit obligation 61 (25 ) 36 Other comprehensive income $ 1,688 $ (709 ) $ 979
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Post-retirement Net Unrealized Accumulated (In thousands) Balance, December 31, 2013 $ (142 ) $ 4,455 $ 4,313 Net change 36 943 979 Balance, December 31, 2014 (106 ) 5,398 5,292 Net change 36 (4,653 ) (4,617 ) Balance, December 31, 2015 (70 ) 745 675 Net change 36 (10,785 ) (10,749 ) Balance, December 31, 2016 $ (34 ) $ (10,040 ) $ (10,074 )

Note 17 - Earnings Per Common40

Note 17 - Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands, except per share data) Net income (numerator) $ 58,853 $ 58,753 $ 60,646 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,612 25,555 26,099 Basic earnings per common share $ 2.30 $ 2.30 $ 2.32 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,612 25,555 26,099 Add common stock equivalents for options 66 22 61 Weighted average number of common shares outstanding - diluted (denominator) 25,678 25,577 26,160 Diluted earnings per common share $ 2.29 $ 2.30 $ 2.32

Note 18 - Westamerica Bancorp41

Note 18 - Westamerica Bancorporation (Parent Company Only Condensed Financial Information) (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Statements of Income and Comprehensive Income, Parent Only [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Dividends from subsidiaries $ 56,824 $ 68,981 $ 75,369 Interest income 25 10 7 Other income 8,315 8,411 7,182 Total income 65,164 77,402 82,558 Interest on borrowings - 1 42 Salaries and benefits 7,079 6,291 6,587 Other expense 3,290 3,424 1,704 Total expense 10,369 9,716 8,333 Income before taxes and equity in undistributed income of subsidiaries 54,795 67,686 74,225 Income tax benefit 1,025 803 742 Earnings of subsidiaries greater (less) than subsidiary dividends 3,033 (9,736 ) (14,321 ) Net income 58,853 58,753 60,646 Other comprehensive (loss) income, net of tax (10,749 ) (4,617 ) 979 Comprehensive income $ 48,104 $ 54,136 $ 61,625
Balance Sheets Parent Only [Table Text Block]	At December 31, 2016 2015 (In thousands) Assets Cash $ 64,054 $ 26,453 Investment securities available for sale 656 991 Investment in Westamerica Bank 468,172 475,697 Investment in non-bank subsidiaries 455 455 Premises and equipment, net 9,165 9,391 Accounts receivable from Westamerica Bank 522 552 Other assets 34,077 33,850 Total assets $ 577,101 $ 547,389 Liabilities Accounts payable to Westamerica Bank $ 705 $ 737 Other liabilities 15,029 14,447 Total liabilities 15,734 15,184 Shareholders' equity 561,367 532,205 Total liabilities and shareholders' equity $ 577,101 $ 547,389
Statement of Cash Flows Parent Only [Table Text Block]	For the Years Ended December 31, 2016 2015 2014 (In thousands) Operating Activities Net income $ 58,853 $ 58,753 $ 60,646 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 305 326 341 Decrease (increase) in accounts receivable from affiliates 299 (217 ) (17 ) Insurance premiums paid (683 ) (637 ) (606 ) Increase in other assets (1,257 ) (1,076 ) (1,062 ) Stock option compensation expense 1,494 1,272 1,318 Tax benefit (increase) decrease upon exercise of stock options and expiration of stock options (394 ) 1,284 447 Provision (benefit) for deferred income tax 1,983 (491 ) 616 Increase (decrease) in other liabilities 1,392 743 (814 ) Earnings of subsidiaries (greater) less than subsidiary dividends (3,033 ) 9,736 14,321 Gain on sales of property and equipment (79 ) (39 ) (88 ) Net Cash Provided by Operating Activities 58,880 69,654 75,102 Investing Activities Purchases of premises and equipment - - - Net Cash Provided by Investing Activities - - - Financing Activities Exercise of stock options/issuance of shares 24,031 4,848 12,396 Taxes paid by withholding shares for tax purposes (356 ) (357 ) (521 ) Tax benefit increase (decrease) upon exercise of stock options and expiration of stock options 394 (1,284 ) (447 ) Retirement of common stock (5,424 ) (14,735 ) (52,157 ) Dividends (39,924 ) (39,124 ) (39,761 ) Net Cash Used in Financing Activities (21,279 ) (50,652 ) (80,490 ) Net change in cash 37,601 19,002 (5,388 ) Cash at Beginning of Period 26,453 7,451 12,839 Cash at End of Period $ 64,054 $ 26,453 $ 7,451 Supplemental Cash Flow Disclosures: Supplemental disclosure of cash flow activities: Interest paid for the period $ - $ 1 $ 42 Income tax payments for the period 19,264 17,666 16,412

Note 19 - Quarterly Financial42

Note 19 - Quarterly Financial Information (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Quarterly Financial Information [Table Text Block]	For the Three Months Ended March 31, June 30, September 30, December 31, (In thousands, expect per share data and 2016 Interest and loan fee income $ 33,647 $ 33,727 $ 33,468 $ 33,209 Net interest income 33,095 33,186 32,945 32,709 (Reversal of) provision for loan losses - - (3,200 ) - Noninterest income 11,729 11,702 11,598 11,545 Noninterest expense 25,858 25,229 26,088 24,577 Income before taxes 18,966 19,659 21,655 19,677 Net income 14,226 14,546 15,628 14,453 Basic earnings per common share 0.56 0.57 0.61 0.56 Diluted earnings per common share 0.56 0.57 0.61 0.56 Dividends paid per common share 0.39 0.39 0.39 0.39 Price range, common stock 40.72 - 49.63 45.86 - 51.53 46.61 - 50.96 48.20 - 65.34 2015 Interest and loan fee income $ 33,917 $ 34,425 $ 34,299 $ 33,888 Net interest income 33,258 33,808 33,714 33,325 Provision for loan losses - - - - Noninterest income 12,300 12,269 11,993 11,305 Noninterest expense 26,727 26,896 26,173 25,504 Income before taxes 18,831 19,181 19,534 19,126 Net income 14,557 14,761 14,857 14,578 Basic earnings per common share 0.57 0.58 0.58 0.57 Diluted earnings per common share 0.57 0.58 0.58 0.57 Dividends paid per common share 0.38 0.38 0.38 0.39 Price range, common stock 40.68 - 48.44 42.70 - 51.69 43.00 - 51.90 42.96 - 49.64 2014 Interest and loan fee income $ 35,564 $ 35,403 $ 34,900 $ 34,342 Net interest income 34,666 34,503 34,054 33,542 Provision for loan losses 1,000 1,000 600 200 Noninterest income 12,990 13,198 13,054 12,545 Noninterest expense 26,873 26,957 26,616 26,353 Income before taxes 19,783 19,744 19,892 19,534 Net income 15,307 15,157 15,154 15,028 Basic earnings per common share 0.58 0.58 0.58 0.58 Diluted earnings per common share 0.58 0.58 0.58 0.58 Dividends paid per common share 0.38 0.38 0.38 0.38 Price range, common stock 48.36 - 56.51 47.85 - 55.34 46.12 - 53.93 42.71 - 51.24

Note 1 - Business and Account43

Note 1 - Business and Accounting Policies (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Loans and Leases Receivable, Days Before Nonaccrual Status	90 days
Loans and Leases Receivable, Certain Consumer Loans and Auto Receivables, Days Before Chargeoff	120 days
Financing Receivable, Impairment Evaluation Criterion, Minimum Outstanding Principal Balance	$ 0.5
FDIC Indemnification Rate	80.00%
FDIC Indemnification Rate, Duration of Interest Covered	90 days
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life	15 years
Land and Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	20 years
Land and Land Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	50 years
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life	3 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life	20 years

Note 2 - Investment Securitie44

Note 2 - Investment Securities (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Pledged Financial Instruments, Not Separately Reported, Securities	$ 768,845	$ 738,865
High Risk Collateralized Mortgage Obligations	$ 0	$ 0

Note 2 - Investment Securitie45

Note 2 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Investment securities available for sale, amortized cost		$ 1,908,079	$ 1,568,927
Investment securities available for sale, gross unrealized gains		18,494	15,932
Investment securities available for sale, gross unrealized losses		(35,815)	(14,643)
Investment securities available for sale		1,890,758	1,570,216
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale, amortized cost		141,599	302,292
Investment securities available for sale, gross unrealized gains		35	255
Investment securities available for sale, gross unrealized losses		(2,974)	(665)
Investment securities available for sale		138,660	301,882
Agency Residential MBS [Member]
Investment securities available for sale, amortized cost		711,623	208,046
Investment securities available for sale, gross unrealized gains		921	1,407
Investment securities available for sale, gross unrealized losses		(21,045)	(6,909)
Investment securities available for sale		691,499	202,544
Non-agency Residential MBS [Member]
Investment securities available for sale, amortized cost		272	354
Investment securities available for sale, gross unrealized gains			16
Investment securities available for sale, gross unrealized losses		(1)
Investment securities available for sale		271	370
Non-agency Commercial MBS [Member]
Investment securities available for sale, amortized cost		2,041	2,383
Investment securities available for sale, gross unrealized gains			5
Investment securities available for sale, gross unrealized losses		(16)	(9)
Investment securities available for sale		2,025	2,379
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale, amortized cost		182,230	148,705
Investment securities available for sale, gross unrealized gains		5,107	8,861
Investment securities available for sale, gross unrealized losses		(3,926)	(57)
Investment securities available for sale		183,411	157,509
Asset-backed Securities [Member]
Investment securities available for sale, amortized cost		696	2,025
Investment securities available for sale, gross unrealized gains
Investment securities available for sale, gross unrealized losses		(1)	(22)
Investment securities available for sale		695	2,003
FHLMC and FNMA Stock [Member]
Investment securities available for sale, amortized cost	[1],[2]	749	775
Investment securities available for sale, gross unrealized gains	[1],[2]	10,120	3,554
Investment securities available for sale, gross unrealized losses	[1],[2]
Investment securities available for sale	[1],[2]	10,869	4,329
Domestic Corporate Debt Securities [Member]
Investment securities available for sale, amortized cost		866,835	902,308
Investment securities available for sale, gross unrealized gains		1,690	882
Investment securities available for sale, gross unrealized losses		(7,668)	(6,821)
Investment securities available for sale		860,857	896,369
Other Securities [Member]
Investment securities available for sale, amortized cost		2,034	2,039
Investment securities available for sale, gross unrealized gains		621	952
Investment securities available for sale, gross unrealized losses		(184)	(160)
Investment securities available for sale		$ 2,471	$ 2,831
[1]	Federal Home Loan Mortgage Corporation
[2]	Federal National Mortgage Association

Note 2 - Investment Securitie46

Note 2 - Investment Securities - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investment securities held to maturity, amortized cost	$ 1,346,312	$ 1,316,075
Investment securities held to maturity, gross unrecognized gains	7,241	15,653
Investment securities held to maturity, gross unrecognized losses	(12,812)	(6,029)
Investment securities held to maturity, fair values	1,340,741	1,325,699
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities held to maturity, amortized cost	581	764
Investment securities held to maturity, gross unrecognized gains	1
Investment securities held to maturity, gross unrecognized losses
Investment securities held to maturity, fair values	582	764
Agency Residential MBS [Member]
Investment securities held to maturity, amortized cost	668,235	595,503
Investment securities held to maturity, gross unrecognized gains	1,122	1,810
Investment securities held to maturity, gross unrecognized losses	(8,602)	(4,966)
Investment securities held to maturity, fair values	660,755	592,347
Non-agency Residential MBS [Member]
Investment securities held to maturity, amortized cost	5,370	9,667
Investment securities held to maturity, gross unrecognized gains	76	185
Investment securities held to maturity, gross unrecognized losses
Investment securities held to maturity, fair values	5,446	9,852
Agency Commercial MBS [Member]
Investment securities held to maturity, amortized cost	9,332	16,258
Investment securities held to maturity, gross unrecognized gains	11	20
Investment securities held to maturity, gross unrecognized losses	(143)	(274)
Investment securities held to maturity, fair values	9,200	16,004
US States and Political Subdivisions Debt Securities [Member]
Investment securities held to maturity, amortized cost	662,794	693,883
Investment securities held to maturity, gross unrecognized gains	6,031	13,638
Investment securities held to maturity, gross unrecognized losses	(4,067)	(789)
Investment securities held to maturity, fair values	$ 664,758	$ 706,732

Note 2 - Investment Securitie47

Note 2 - Investment Securities - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Investment securities available for sale, amortized cost, 1 year or less	$ 154,693,000	$ 136,717,000
Investment securities available for sale, fair value, 1 year or less	154,835,000	136,976,000
Investment securities held to maturity, amortized cost, 1 year or less	14,961,000	20,709,000
Investment securities held to maturity, fair value, 1 year or less	15,639,000	21,354,000
Investment securities available for sale, amortized cost, over 1 to 5 years	750,834,000	1,049,786,000
Investment securities available for sale, fair value, over 1 to 5 years	745,219,000	1,044,453,000
Investment securities held to maturity, amortized cost, over 1 to 5 years	292,024,000	259,556,000
Investment securities held to maturity, fair value, over 1 to 5 years	292,062,000	262,163,000
Investment securities available for sale, amortized cost, over 5 to 10 years	238,077,000	166,352,000
Investment securities available for sale, fair value, over 5 to 10 years	239,153,000	173,585,000
Investment securities held to maturity, amortized cost, over 5 to 10 years	318,580,000	289,568,000
Investment securities held to maturity, fair value, over 5 to 10 years	319,587,000	296,352,000
Investment securities available for sale, amortized cost, over 10 years	47,756,000	2,475,000
Investment securities available for sale, fair value, over 10 years	44,416,000	2,749,000
Investment securities held to maturity, amortized cost, over 10 years	37,810,000	124,814,000
Investment securities held to maturity, fair value, over 10 years	38,052,000	127,627,000
Investment securities available for sale, amortized cost, subtotal	1,191,360,000	1,355,330,000
Investment securities available for sale, fair value, subtotal	1,183,623,000	1,357,763,000
Investment securities held to maturity, amortized cost, subtotal	663,375,000	694,647,000
Investment securities held to maturity, fair value, subtotal	665,340,000	707,496,000
Investment securities available for sale, amortized cost	1,908,079,000	1,568,927,000
Investment securities available for sale	1,890,758,000	1,570,216,000
Investment securities held to maturity, amortized cost	1,346,312,000	1,316,075,000
Investment securities held to maturity, fair values	1,340,741,000	1,325,699,000
Mortgage Backed Securities [Member]
Investment securities available for sale, amortized cost	713,936,000	210,783,000
Investment securities available for sale	693,795,000	205,293,000
Investment securities held to maturity, amortized cost	682,937,000	621,428
Investment securities held to maturity, fair value	675,401,000	618,203
Other Securities [Member]
Investment securities available for sale, amortized cost	2,783,000	2,814,000
Investment securities available for sale	13,340,000	7,160,000
Investment securities held to maturity, amortized cost
Investment securities held to maturity, fair value
Investment securities available for sale, amortized cost	2,034,000	2,039,000
Investment securities available for sale	$ 2,471,000	$ 2,831,000

Note 2 - Investment Securitie48

Note 2 - Investment Securities - Gross Unrealized Losses, Investment Securities Portfolio (Details) $ in Thousands	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Available for sale securities, less than 12 months, number of investment positions	129	111
Available for sale securities, less than 12 months, fair value	$ 1,086,159	$ 685,859
Available for sale securities, less than 12 months, unrealized losses	$ (29,934)	$ (6,491)
Available for sale securities, 12 months or longer, number of investment positions	61	63
Available for sale securities, 12 months or longer, fair value	$ 223,446	$ 254,400
Available for sale securities, 12 months or longer, unrealized losses	$ (5,881)	$ (8,152)
Available for sale securities, total, number of investment positions	190	174
Available for sale securities, total, fair value	$ 1,309,605	$ 940,259
Available for sale securities, total, unrealized losses	$ (35,815)	$ (14,643)
Held to Maturity securities, less than 12 months, number of investment positions	361	96
Held to Maturity securities, less than 12 months, fair value	$ 842,372	$ 470,902
Held to Maturity securities, less than 12 months, unrecognized losses	$ (11,995)	$ (3,739)
Held to Maturity securities, 12 months or longer, number of investment positions	16	69
Held to Maturity securities, 12 months or longer, fair value	$ 30,820	$ 118,073
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (817)	$ (2,290)
Held to Maturity securities, total, number of investment positions	377	165
Held to Maturity securities, total, fair value	$ 873,192	$ 588,975
Held to Maturity securities, total, unrecognized losses	$ (12,812)	$ (6,029)
US Government-sponsored Enterprises Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	8	8
Available for sale securities, less than 12 months, fair value	$ 117,227	$ 121,392
Available for sale securities, less than 12 months, unrealized losses	$ (2,974)	$ (665)
Available for sale securities, 12 months or longer, number of investment positions
Available for sale securities, 12 months or longer, fair value
Available for sale securities, 12 months or longer, unrealized losses
Available for sale securities, total, number of investment positions	8	8
Available for sale securities, total, fair value	$ 117,227	$ 121,392
Available for sale securities, total, unrealized losses	$ (2,974)	$ (665)
Residential Mortgage Backed Securities [Member] | Agency Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	21	2
Available for sale securities, less than 12 months, fair value	$ 524,269	$ 12,491
Available for sale securities, less than 12 months, unrealized losses	$ (16,494)	$ (366)
Available for sale securities, 12 months or longer, number of investment positions	28	31
Available for sale securities, 12 months or longer, fair value	$ 122,901	$ 161,296
Available for sale securities, 12 months or longer, unrealized losses	$ (4,551)	$ (6,543)
Available for sale securities, total, number of investment positions	49	33
Available for sale securities, total, fair value	$ 647,170	$ 173,787
Available for sale securities, total, unrealized losses	$ (21,045)	$ (6,909)
Held to Maturity securities, less than 12 months, number of investment positions	66	41
Held to Maturity securities, less than 12 months, fair value	$ 569,876	$ 426,317
Held to Maturity securities, less than 12 months, unrecognized losses	$ (8,285)	$ (3,490)
Held to Maturity securities, 12 months or longer, number of investment positions	3	13
Held to Maturity securities, 12 months or longer, fair value	$ 10,480	$ 62,041
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (317)	$ (1,476)
Held to Maturity securities, total, number of investment positions	69	54
Held to Maturity securities, total, fair value	$ 580,356	$ 488,358
Held to Maturity securities, total, unrecognized losses	$ (8,602)	$ (4,966)
Residential Mortgage Backed Securities [Member] | Non-agency 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	$ 246
Available for sale securities, less than 12 months, unrealized losses	$ (1)
Available for sale securities, 12 months or longer, number of investment positions
Available for sale securities, 12 months or longer, fair value
Available for sale securities, 12 months or longer, unrealized losses
Available for sale securities, total, number of investment positions	2
Available for sale securities, total, fair value	$ 246
Available for sale securities, total, unrealized losses	$ (1)
Commercial Mortgage Backed Securities [Member] | Agency Securities [Member]
Held to Maturity securities, less than 12 months, number of investment positions
Held to Maturity securities, less than 12 months, fair value
Held to Maturity securities, less than 12 months, unrecognized losses
Held to Maturity securities, 12 months or longer, number of investment positions	1	2
Held to Maturity securities, 12 months or longer, fair value	$ 7,214	$ 13,951
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (143)	$ (274)
Held to Maturity securities, total, number of investment positions	1	2
Held to Maturity securities, total, fair value	$ 7,214	$ 13,951
Held to Maturity securities, total, unrecognized losses	$ (143)	$ (274)
Commercial Mortgage Backed Securities [Member] | Non-agency 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	$ 1,253	$ 1,071
Available for sale securities, less than 12 months, unrealized losses	$ (9)
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 772	$ 855
Available for sale securities, 12 months or longer, unrealized losses	$ (7)	$ (9)
Available for sale securities, total, number of investment positions	3	2
Available for sale securities, total, fair value	$ 2,025	$ 1,926
Available for sale securities, total, unrealized losses	$ (16)	$ (9)
US States and Political Subdivisions Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	43	3
Available for sale securities, less than 12 months, fair value	$ 57,989	$ 2,728
Available for sale securities, less than 12 months, unrealized losses	$ (3,905)	$ (18)
Available for sale securities, 12 months or longer, number of investment positions	3	4
Available for sale securities, 12 months or longer, fair value	$ 1,117	$ 1,644
Available for sale securities, 12 months or longer, unrealized losses	$ (21)	$ (39)
Available for sale securities, total, number of investment positions	46	7
Available for sale securities, total, fair value	$ 59,106	$ 4,372
Available for sale securities, total, unrealized losses	$ (3,926)	$ (57)
Held to Maturity securities, less than 12 months, number of investment positions	295	55
Held to Maturity securities, less than 12 months, fair value	$ 272,496	$ 44,585
Held to Maturity securities, less than 12 months, unrecognized losses	$ (3,710)	$ (249)
Held to Maturity securities, 12 months or longer, number of investment positions	12	54
Held to Maturity securities, 12 months or longer, fair value	$ 13,126	$ 42,081
Held to Maturity securities, 12 months or longer, unrecognized losses	$ (357)	$ (540)
Held to Maturity securities, total, number of investment positions	307	109
Held to Maturity securities, total, fair value	$ 285,622	$ 86,666
Held to Maturity securities, total, unrecognized losses	$ (4,067)	$ (789)
Asset-backed Securities [Member]
Available for sale securities, less than 12 months, number of investment positions
Available for sale securities, less than 12 months, fair value
Available for sale securities, less than 12 months, unrealized losses
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 695	$ 2,003
Available for sale securities, 12 months or longer, unrealized losses	$ (1)	$ (22)
Available for sale securities, total, number of investment positions	1	1
Available for sale securities, total, fair value	$ 695	$ 2,003
Available for sale securities, total, unrealized losses	$ (1)	$ (22)
Domestic Corporate Debt Securities [Member]
Available for sale securities, less than 12 months, number of investment positions	53	97
Available for sale securities, less than 12 months, fair value	$ 385,175	$ 548,177
Available for sale securities, less than 12 months, unrealized losses	$ (6,551)	$ (5,442)
Available for sale securities, 12 months or longer, number of investment positions	27	25
Available for sale securities, 12 months or longer, fair value	$ 96,145	$ 86,762
Available for sale securities, 12 months or longer, unrealized losses	$ (1,117)	$ (1,379)
Available for sale securities, total, number of investment positions	80	122
Available for sale securities, total, fair value	$ 481,320	$ 634,939
Available for sale securities, total, unrealized losses	$ (7,668)	$ (6,821)
Other Securities [Member]
Available for sale securities, less than 12 months, number of investment positions
Available for sale securities, less than 12 months, fair value
Available for sale securities, less than 12 months, unrealized losses
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 1,816	$ 1,840
Available for sale securities, 12 months or longer, unrealized losses	$ (184)	$ (160)
Available for sale securities, total, number of investment positions	1	1
Available for sale securities, total, fair value	$ 1,816	$ 1,840
Available for sale securities, total, unrealized losses	$ (184)	$ (160)

Note 2 - Investment Securitie49

Note 2 - Investment Securities - Interest Income from Investment Securities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Taxable	$ 42,718	$ 34,472	$ 24,766
Tax-exempt from regular federal income tax	22,194	23,616	26,387
Total interest income from investment securities	$ 64,912	$ 58,088	$ 51,153

Note 3 - Loans and Allowance 50

Note 3 - Loans and Allowance for Credit Losses (Details Textual)	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Mortgage Loans in Process of Foreclosure, Amount	$ 0	$ 0
Financing Receivable, Modifications, Recorded Investment	$ 12,381,000	$ 15,712,000	$ 4,837,000
Troubled Debt Restructurings During Period	4	10	5
Other Real Estate	$ 3,095,000	$ 9,264,000
Other Real Estate, Reserve	1,816,000	1,986,000
Loans and Leases Receivable, Nonaccrual, Commitment to Lend	$ 0	$ 0
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0	0
Loans Receivable Held-for-sale, Amount	$ 0	$ 0
Residential Real Estate Included in OREO [Member]
Real Estate Acquired Through Foreclosure	0	0
Under-Market Terms, Extended Maturity Date and Court Orders [Member]
Financing Receivable, Modifications, Recorded Investment	$ 4,731,000	$ 11,026,000	$ 713,000
Under-market Modification to Payment Terms and Extended Maturity Date [Member]
Troubled Debt Restructurings During Period	3	4	5
Court Order [Member]
Troubled Debt Restructurings During Period	1	6
Restructured Loans [Member]
Financing Receivable, Modifications, Recorded Investment	$ 12,381,000	$ 15,712,000
Impaired Loans, Restructured, Nonaccrual Status	$ 5,302,000	$ 7,464,000

Note 3 - Loans and Allowance 51

Note 3 - Loans and Allowance for Credit Losses - Loans Receivable at Carrying Amount (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Originated loans	$ 1,235,559	$ 1,351,839
Purchased covered loans	11,027	14,213
Purchased loan discount, covered loans		(152)
Gross purchased non-covered loans	110,183	173,928
Purchased loan discount, non-covered laons	(4,058)	(6,432)
Total	1,352,711	1,533,396
Commercial Portfolio Segment [Member]
Originated loans	342,792	368,117
Purchased covered loans
Purchased loan discount, covered loans
Gross purchased non-covered loans	12,452	15,620
Purchased loan discount, non-covered laons	(547)	(989)
Total	354,697	382,748
Commercial Real Estate Portfolio Segment [Member]
Originated loans	473,558	517,070
Purchased covered loans
Purchased loan discount, covered loans
Gross purchased non-covered loans	71,250	124,650
Purchased loan discount, non-covered laons	(2,637)	(4,264)
Total	542,171	637,456
Construction Portfolio Segment [Member]
Originated loans	2,409	2,978
Purchased covered loans
Purchased loan discount, covered loans
Gross purchased non-covered loans	146	973
Purchased loan discount, non-covered laons
Total	2,555	3,951
Residential Portfolio Segment [Member]
Originated loans	85,439	117,631
Purchased covered loans	2,086	2,385
Purchased loan discount, covered loans		(133)
Gross purchased non-covered loans	222	231
Purchased loan discount, non-covered laons	(23)	(23)
Total	87,724	120,091
Consumer Portfolio Segment [Member]
Originated loans	331,361	346,043
Purchased covered loans	8,941	11,828
Purchased loan discount, covered loans		(19)
Gross purchased non-covered loans	26,113	32,454
Purchased loan discount, non-covered laons	(851)	(1,156)
Total	$ 365,564	$ 389,150

Note 3 - Loans and Allowance 52

Note 3 - Loans and Allowance for Credit Losses - Changes in the Carrying Amount of Impaired Purchased Loans (Details) - Receivables Acquired with Deteriorated Credit Quality [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Carrying amount at the beginning of the period	$ 3,887	$ 4,672
Reductions during the period	(3,022)	(785)
Carrying amount at the end of the period	$ 865	$ 3,887

Note 3 - Loans and Allowance 53

Note 3 - Loans and Allowance for Credit Losses - Changes in the Accretable Yield for Purchased Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance at the beginning of the period	$ 1,259	$ 2,261
Reclassification from nonaccretable difference	3,912	3,051
Accretion	(3,934)	(4,053)
Balance at the end of the period	1,237	1,259
Change in FDIC indemnification	1,053	698
(Increase) in interest income	$ (2,881)	$ (3,355)

Note 3 - Loans and Allowance 54

Note 3 - Loans and Allowance for Credit Losses - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Balance at beginning of period				$ 29,771				$ 31,485				$ 31,693	$ 29,771	$ 31,485	$ 31,693
(Reversal) provision		$ (3,200)							$ 200	$ 600	$ 1,000	1,000	(3,200)		2,800
Chargeoffs													(6,772)	(5,129)	(7,418)
Recoveries													6,155	3,415	4,410
Net loan recoveries (losses)													(617)	(1,714)	(3,008)
Total allowance for loan losses	25,954				29,771				31,485				25,954	29,771	31,485
Indemnification expiration
Liability for off-balance sheet credit exposure									2,693						2,693
Total allowance for credit losses	25,954				29,771				34,178				25,954	29,771	34,178
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Balance at beginning of period				9,559				5,460				4,005	9,559	5,460	4,005
(Reversal) provision													(2,065)	3,702	1,095
Chargeoffs													(2,023)	(756)	(1,890)
Recoveries													2,836	1,153	2,250
Net loan recoveries (losses)													813	397	360
Total allowance for loan losses	8,307				9,559				5,460				8,307	9,559	5,460
Indemnification expiration
Liability for off-balance sheet credit exposure									2,408						2,408
Total allowance for credit losses	8,307				9,559				7,868				8,307	9,559	7,868
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Balance at beginning of period				4,224				4,245				12,070	4,224	4,245	12,070
(Reversal) provision													(954)	356	(7,276)
Chargeoffs														(449)	(762)
Recoveries													60	72	213
Net loan recoveries (losses)													60	(377)	(549)
Total allowance for loan losses	3,330				4,224				4,245				3,330	4,224	4,245
Indemnification expiration
Liability for off-balance sheet credit exposure
Total allowance for credit losses	3,330				4,224				4,245				3,330	4,224	4,245
Originated Loans [Member] | Construction Portfolio Segment [Member]
Balance at beginning of period				177				644				602	177	644	602
(Reversal) provision													(34)	(512)	39
Chargeoffs
Recoveries														45	3
Net loan recoveries (losses)														45	3
Total allowance for loan losses	143				177				644				143	177	644
Indemnification expiration
Liability for off-balance sheet credit exposure									344						344
Total allowance for credit losses	143				177				988				143	177	988
Originated Loans [Member] | Residential Portfolio Segment [Member]
Balance at beginning of period				1,801				2,241				405	1,801	2,241	405
(Reversal) provision													(493)	(440)	1,866
Chargeoffs															(30)
Recoveries
Net loan recoveries (losses)															(30)
Total allowance for loan losses	1,308				1,801				2,241				1,308	1,801	2,241
Indemnification expiration
Liability for off-balance sheet credit exposure
Total allowance for credit losses	1,308				1,801				2,241				1,308	1,801	2,241
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Balance at beginning of period				7,080				7,717				3,198	7,080	7,717	3,198
(Reversal) provision													2,344	950	6,864
Chargeoffs													(4,404)	(3,493)	(4,214)
Recoveries													1,512	1,906	1,869
Net loan recoveries (losses)													(2,892)	(1,587)	(2,345)
Total allowance for loan losses	6,532				7,080				7,717				6,532	7,080	7,717
Indemnification expiration
Liability for off-balance sheet credit exposure									437						437
Total allowance for credit losses	6,532				7,080				8,154				6,532	7,080	8,154
Purchased Non-Covered Loans [Member]
Balance at beginning of period				967				2,120					967	2,120
(Reversal) provision													(923)	(961)	1,006
Chargeoffs													(345)	(431)	(522)
Recoveries													1,747	239	75
Net loan recoveries (losses)													1,402	(192)	(447)
Total allowance for loan losses	1,446				967				2,120				1,446	967	2,120
Indemnification expiration									1,561						1,561
Liability for off-balance sheet credit exposure
Total allowance for credit losses	1,446				967				2,120				1,446	967	2,120
Purchased Covered Loans [Member]
Balance at beginning of period												1,561			1,561
(Reversal) provision													53
Chargeoffs
Recoveries
Net loan recoveries (losses)
Total allowance for loan losses	53												53
Indemnification expiration									(1,561)						(1,561)
Liability for off-balance sheet credit exposure
Total allowance for credit losses	53				0								53	0
Unallocated Financing Receivable [Member]
Balance at beginning of period				$ 5,963				$ 9,058				$ 9,852	5,963	9,058	9,852
(Reversal) provision													(1,128)	(3,095)	(794)
Chargeoffs
Recoveries
Net loan recoveries (losses)
Total allowance for loan losses	4,835				5,963				9,058				4,835	5,963	9,058
Indemnification expiration
Liability for off-balance sheet credit exposure									(496)						(496)
Total allowance for credit losses	$ 4,835				$ 5,963				$ 8,562				$ 4,835	$ 5,963	$ 8,562

Note 3 - Loans and Allowance 55

Note 3 - Loans and Allowance for Credit Losses - Recorded Investment in Loans Evaluated for Impairment (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Individually evaluated for impairment		$ 5,048	$ 5,527
Collectively evaluated for impairment		20,906	24,244
Total allowance for credit losses		25,954	29,771	$ 34,178
Individually evaluated for impairment		24,715	29,905
Collectively evaluated for impairment		1,327,131	1,499,604
Total loans		1,352,711	1,533,396
Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		865	3,887
Commercial Portfolio Segment [Member]
Total loans		354,697	382,748
Commercial Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		0	0
Commercial Real Estate Portfolio Segment [Member]
Total loans		542,171	637,456
Commercial Real Estate Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		0	0
Construction Portfolio Segment [Member]
Total loans		2,555	3,951
Construction Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		0	0
Residential Portfolio Segment [Member]
Total loans		87,724	120,091
Residential Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		0	0
Consumer Portfolio Segment [Member]
Total loans		365,564	389,150
Consumer Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		0	0
Originated Loans [Member]
Total loans		1,235,559	1,351,839
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Individually evaluated for impairment		5,048	4,942
Collectively evaluated for impairment		3,259	4,617
Total allowance for credit losses		8,307	9,559	7,868
Individually evaluated for impairment		11,140	12,587
Collectively evaluated for impairment		331,652	355,530
Total loans		342,792	368,117
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Individually evaluated for impairment			585
Collectively evaluated for impairment		3,330	3,639
Total allowance for credit losses		3,330	4,224	4,245
Individually evaluated for impairment		5,264	5,541
Collectively evaluated for impairment		468,294	511,529
Total loans		473,558	517,070
Originated Loans [Member] | Construction Portfolio Segment [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		143	177
Total allowance for credit losses		143	177	988
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		2,409	2,978
Total loans		2,409	2,978
Originated Loans [Member] | Residential Portfolio Segment [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		1,308	1,801
Total allowance for credit losses		1,308	1,801	2,241
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		85,439	117,631
Total loans		85,439	117,631
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		6,532	7,080
Total allowance for credit losses		6,532	7,080	8,154
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		331,361	346,043
Total loans		331,361	346,043
Purchased Non-Covered Loans [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		1,446	967
Total allowance for credit losses		1,446	967	2,120
Individually evaluated for impairment		7,694	11,777
Collectively evaluated for impairment		97,751	152,038
Total loans		106,125	167,496
Purchased Non-Covered Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		680	3,681
Purchased Covered Loans [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		53
Total allowance for credit losses		53	0
Individually evaluated for impairment		617	0
Collectively evaluated for impairment		10,225	13,855
Total loans	[1]	11,027	14,061
Purchased Covered Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		185	206
Unallocated Financing Receivable [Member]
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		4,835	5,963
Total allowance for credit losses		4,835	5,963	$ 8,562
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		0	0
Total loans		0	0
Unallocated Financing Receivable [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Total loans		$ 0	$ 0
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 3 - Loans and Allowance 56

Note 3 - Loans and Allowance for Credit Losses - Credit Risk Profile by Internally Assigned Grade (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Loans		$ 1,352,711	$ 1,533,396
Pass [Member]
Loans, before purchased loan discount		1,309,612	1,474,260
Substandard [Member]
Loans, before purchased loan discount		45,371	65,316
Doubtful [Member]
Loans, before purchased loan discount		1,306	30
Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		480	374
Commercial Portfolio Segment [Member]
Purchased loan discount		0	0
Loans		354,697	382,748
Commercial Real Estate Portfolio Segment [Member]
Purchased loan discount		0	0
Loans		542,171	637,456
Construction Portfolio Segment [Member]
Purchased loan discount		0	0
Loans		2,555	3,951
Residential Portfolio Segment [Member]
Purchased loan discount		0	0
Loans		87,724	120,091
Consumer Portfolio Segment [Member]
Purchased loan discount		0	0
Loans		365,564	389,150
Originated Loans [Member]
Loans		1,235,559	1,351,839
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Loans		342,792	368,117
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Pass [Member]
Loans, before purchased loan discount		329,964	353,474
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Substandard [Member]
Loans, before purchased loan discount		12,828	14,643
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Doubtful [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans		473,558	517,070
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Loans, before purchased loan discount		459,771	496,744
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Loans, before purchased loan discount		13,787	20,326
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Construction Portfolio Segment [Member]
Loans		2,409	2,978
Originated Loans [Member] | Construction Portfolio Segment [Member] | Pass [Member]
Loans, before purchased loan discount		2,409	2,978
Originated Loans [Member] | Construction Portfolio Segment [Member] | Substandard [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Construction Portfolio Segment [Member] | Doubtful [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Construction Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Residential Portfolio Segment [Member]
Loans		85,439	117,631
Originated Loans [Member] | Residential Portfolio Segment [Member] | Pass [Member]
Loans, before purchased loan discount		82,715	114,525
Originated Loans [Member] | Residential Portfolio Segment [Member] | Substandard [Member]
Loans, before purchased loan discount		2,724	3,106
Originated Loans [Member] | Residential Portfolio Segment [Member] | Doubtful [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Residential Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		0	0
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Loans		331,361	346,043
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Pass [Member]
Loans, before purchased loan discount		329,961	344,876
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Substandard [Member]
Loans, before purchased loan discount		1,056	781
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Doubtful [Member]
Loans, before purchased loan discount		6	12
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		338	374
Purchased Non-Covered Loans [Member]
Purchased loan discount		(4,058)	(6,432)
Loans		106,125	167,496
Purchased Non-Covered Loans [Member] | Pass [Member]
Loans, before purchased loan discount		95,373	149,100
Purchased Non-Covered Loans [Member] | Substandard [Member]
Loans, before purchased loan discount		13,368	24,810
Purchased Non-Covered Loans [Member] | Doubtful [Member]
Loans, before purchased loan discount		1,300	18
Purchased Non-Covered Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount		142	0
Purchased Covered Loans [Member]
Purchased loan discount	[1]	0	(152)
Loans	[1]	11,027	14,061
Purchased Covered Loans [Member] | Pass [Member]
Loans, before purchased loan discount	[1]	9,419	12,563
Purchased Covered Loans [Member] | Substandard [Member]
Loans, before purchased loan discount	[1]	1,608	1,650
Purchased Covered Loans [Member] | Doubtful [Member]
Loans, before purchased loan discount	[1]	0	0
Purchased Covered Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Loans, before purchased loan discount	[1]	0	0
Purchased Non-covered and Covered Loans [Member]
Purchased loan discount		$ (4,058)	$ (6,584)
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 3 - Loans and Allowance 57

Note 3 - Loans and Allowance for Credit Losses - Loans by Delinquency and Nonaccrual Status (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Current and accruing		$ 1,335,850	$ 1,503,022
Nonaccrual		8,385	14,998
Total loans		1,352,711	1,533,396
Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		6,468	12,893
Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		1,511	2,188
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		497	295
Commercial Portfolio Segment [Member]
Total loans		354,697	382,748
Commercial Real Estate Portfolio Segment [Member]
Total loans		542,171	637,456
Construction Portfolio Segment [Member]
Total loans		2,555	3,951
Residential Portfolio Segment [Member]
Total loans		87,724	120,091
Consumer Portfolio Segment [Member]
Total loans		365,564	389,150
Originated Loans [Member]
Current and accruing		1,222,803	1,330,539
Nonaccrual		5,815	6,652
Total loans		1,235,559	1,351,839
Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		5,115	12,172
Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		1,471	2,181
Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		355	295
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Current and accruing		341,632	365,450
Nonaccrual		194	768
Total loans		342,792	368,117
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		926	1,777
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		40	122
Originated Loans [Member] | Commercial Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		0	0
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Current and accruing		467,529	504,970
Nonaccrual		5,177	5,444
Total loans		473,558	517,070
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		407	5,930
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		445	726
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		0	0
Originated Loans [Member] | Construction Portfolio Segment [Member]
Current and accruing		2,183	2,978
Nonaccrual		0	0
Total loans		2,409	2,978
Originated Loans [Member] | Construction Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		226	0
Originated Loans [Member] | Construction Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		0	0
Originated Loans [Member] | Construction Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		0	0
Originated Loans [Member] | Residential Portfolio Segment [Member]
Current and accruing		84,430	115,575
Nonaccrual		444	440
Total loans		85,439	117,631
Originated Loans [Member] | Residential Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		528	1,202
Originated Loans [Member] | Residential Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		37	414
Originated Loans [Member] | Residential Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		0	0
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Current and accruing		327,029	341,566
Nonaccrual			0
Total loans		331,361	346,043
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		3,028	3,263
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		949	919
Originated Loans [Member] | Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		355	295
Purchased Non-Covered Loans [Member]
Current and accruing		102,878	158,554
Nonaccrual		1,712	8,346
Total loans		106,125	167,496
Purchased Non-Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing		1,353	589
Purchased Non-Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing		40	7
Purchased Non-Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		142	0
Purchased Covered Loans [Member]
Current and accruing		10,169	13,929
Nonaccrual		858	0
Total loans	[1]	11,027	14,061
Purchased Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Past due and accruing			132
Purchased Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Past due and accruing			0
Purchased Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Past due and accruing		$ 0	$ 0
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 3 - Loans and Allowance 58

Note 3 - Loans and Allowance for Credit Losses - Effect of Nonaccrual Loans on Interest Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income that would have been recognized had the loans performed in accordance with their original terms	$ 874	$ 1,277	$ 1,146
Interest income recognized on nonaccrual loans	(1,097)	(362)	(60)
Total (addition) reduction of interest income	$ (223)	$ 915	$ 1,086

Note 3 - Loans and Allowance 59

Note 3 - Loans and Allowance for Credit Losses - Impaired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded, Recorded Investment	$ 1,234	$ 2,917
Impaired loans with no related allowance recorded, Unpaid Principal Balance	1,303	2,979
Impaired loans with an allowance recorded, Recorded Investment	10,163	10,170
Impaired loans with an allowance recorded, Unpaid Principal Balance	10,172	10,170
Impaired loans with an allowance recorded, Related Allowance	5,048	4,942
Total Impaired loans, Recorded Investment	11,397	13,087
Total Impaired loans, Unpaid Principal Balance	11,475	13,149
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded, Recorded Investment	13,233	16,309
Impaired loans with no related allowance recorded, Unpaid Principal Balance	15,610	21,168
Impaired loans with an allowance recorded, Recorded Investment		4,660
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	5,109
Impaired loans with an allowance recorded, Related Allowance	0	585
Total Impaired loans, Recorded Investment	13,233	20,969
Total Impaired loans, Unpaid Principal Balance	15,610	26,277
Construction Portfolio Segment [Member]
Impaired loans with no related allowance recorded, Recorded Investment		271
Impaired loans with no related allowance recorded, Unpaid Principal Balance		271
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Total Impaired loans, Recorded Investment		271
Total Impaired loans, Unpaid Principal Balance		271
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded, Recorded Investment	1,279	666
Impaired loans with no related allowance recorded, Unpaid Principal Balance	1,309	697
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Total Impaired loans, Recorded Investment	1,279	666
Total Impaired loans, Unpaid Principal Balance	1,309	697
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded, Recorded Investment	569	350
Impaired loans with no related allowance recorded, Unpaid Principal Balance	675	456
Impaired loans with an allowance recorded, Recorded Investment	0	0
Impaired loans with an allowance recorded, Unpaid Principal Balance	0	0
Impaired loans with an allowance recorded, Related Allowance	0	0
Total Impaired loans, Recorded Investment	569	350
Total Impaired loans, Unpaid Principal Balance	$ 675	$ 456

Note 3 - Loans and Allowance 60

Note 3 - Loans and Allowance for Credit Losses - Impaired Loans, Supplemental Schedule (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Average Recorded Investment	$ 30,945	$ 34,583	$ 28,687
Recognized Interest Income	1,281	1,314	823
Commercial Portfolio Segment [Member]
Average Recorded Investment	12,923	12,631	5,240
Recognized Interest Income	512	584	325
Commercial Real Estate Portfolio Segment [Member]
Average Recorded Investment	16,701	20,307	19,880
Recognized Interest Income	725	674	469
Construction Portfolio Segment [Member]
Average Recorded Investment	102	263	2,015
Recognized Interest Income
Residential Portfolio Segment [Member]
Average Recorded Investment	746	643	153
Recognized Interest Income	19	31
Consumer Portfolio Segment [Member]
Average Recorded Investment	473	739	1,399
Recognized Interest Income	$ 25	$ 25	$ 29

Note 3 - Loans and Allowance 61

Note 3 - Loans and Allowance for Credit Losses - Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Number of Contracts	18	17	8
Pre-Modification Carrying Value	$ 14,217	$ 16,307	$ 4,983
Financing Receivable, Modifications, Recorded Investment	12,381	15,712	4,837
Period-End Individual Impairment Allowance	$ 113	$ 194
Commercial Portfolio Segment [Member]
Number of Contracts	7	6	3
Pre-Modification Carrying Value	$ 2,719	$ 3,138	$ 2,075
Financing Receivable, Modifications, Recorded Investment	1,489	2,802	1,901
Period-End Individual Impairment Allowance	$ 113	$ 194
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts	10	10	4
Pre-Modification Carrying Value	$ 11,257	$ 12,927	$ 2,890
Financing Receivable, Modifications, Recorded Investment	10,673	12,684	2,928
Period-End Individual Impairment Allowance
Residential Portfolio Segment [Member]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 241	$ 242
Financing Receivable, Modifications, Recorded Investment	219	226
Period-End Individual Impairment Allowance
Consumer Portfolio Segment [Member]
Number of Contracts			1
Pre-Modification Carrying Value			$ 18
Financing Receivable, Modifications, Recorded Investment			8
Period-End Individual Impairment Allowance

Note 4 - Concentration of Cre62

Note 4 - Concentration of Credit Risk (Details Textual) $ in Thousands	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
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	50
Loan Commitments and Standby Letters of Credit Related to Real Estate Loans	$ 57,721	$ 61,190
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	35
Concentration Risk, Aggregate Loans Amount	$ 5,000

Note 5 - Premises, Equipment 63

Note 5 - Premises, Equipment and Other Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Depreciation, Depletion and Amortization, Nonproduction	$ 3,959	$ 3,523	$ 3,177
FRB Membership, Stock Subscription, Percent of Paid-Up Capital Stock and Surplus Requirement	6.00%
LIHTC Investments	$ 12,591	15,259
Qualified Affordable Housing Project Investments, Commitment	2,299	$ 2,299
Contingent Commitment, Year 4 [Member]
Qualified Affordable Housing Project Investments, Commitment	722
Contingent Commitment, Year 7 [Member]
Qualified Affordable Housing Project Investments, Commitment	131
Contingent Commitment, Year 8 [Member]
Qualified Affordable Housing Project Investments, Commitment	90
Contingent Commitment, Year 9 or Thereafter [Member]
Qualified Affordable Housing Project Investments, Commitment	$ 1,356

Note 5 - Premises, Equipment 64

Note 5 - Premises, Equipment and Other Assets - Premises and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Cost	$ 80,684	$ 82,653
Accumulated Depreciation and Amortization	(44,118)	(43,960)
Premises and equipment, net	36,566	38,693
Land [Member]
Cost	11,896	11,896
Accumulated Depreciation and Amortization
Premises and equipment, net	11,896	11,896
Building and Building Improvements [Member]
Cost	40,992	40,795
Accumulated Depreciation and Amortization	(25,180)	(24,024)
Premises and equipment, net	15,812	16,771
Leasehold Improvements [Member]
Cost	5,922	5,696
Accumulated Depreciation and Amortization	(4,599)	(4,628)
Premises and equipment, net	1,323	1,068
Furniture and Fixtures [Member]
Cost	21,874	24,266
Accumulated Depreciation and Amortization	(14,339)	(15,308)
Premises and equipment, net	$ 7,535	$ 8,958

Note 5 - Premises, Equipment 65

Note 5 - Premises, Equipment and Other Assets - Other Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Cost method equity investments:
Federal Reserve Bank stock (1)	[1]	$ 14,069	$ 14,069
Other investments		201	201
Total cost method equity investments		14,270	14,270
Life insurance cash surrender value		51,535	48,972
Net deferred tax asset		55,417	51,748
Limited partnership investments		12,591	15,259
Interest receivable		21,489	20,174
Prepaid assets		4,825	4,771
Other assets		11,597	10,660
Total other assets		$ 171,724	$ 165,854
[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 5 - Premises, Equipment 66

Note 5 - Premises, Equipment and Other Assets - Amounts Recognized in Net Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investment loss included in pre-tax income	$ 2,475	$ 2,850	$ 2,950
Tax credits recognized in provision for income taxes	$ 2,286	$ 2,650	$ 2,825

Note 6 - Goodwill and Identif67

Note 6 - Goodwill and Identifiable Intangible Assets (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Amortization Expense, Adjustment Resulting from a Change in Estimates of Useful Lives or Residual Values	$ 0	$ 0	$ 0
Goodwill and Intangible Asset Impairment	$ 0	$ 0	$ 0

Note 6 - Goodwill and Identif68

Note 6 - Goodwill and Identifiable Intangible Assets - Carrying Values of Goodwill (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Goodwill	$ 121,673	$ 121,673

Note 6 - Goodwill and Identif69

Note 6 - Goodwill and Identifiable Intangible Assets - Gross Carrying Amount of Intangible Assets and Accumulated Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount	$ 67,108	$ 67,108
Accumulated Amortization	(60,181)	(56,677)
Core Deposits [Member]
Gross Carrying Amount	56,808	56,808
Accumulated Amortization	(50,074)	(46,782)
Mechant Draft Processing [Member]
Gross Carrying Amount	10,300	10,300
Accumulated Amortization	$ (10,107)	$ (9,895)

Note 6 - Goodwill and Identif70

Note 6 - Goodwill and Identifiable Intangible Assets - Estimated Future Amortization Expense for Identifiable Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
For the Year Ended December 31, 2016 (actual)	$ 3,504	$ 3,856	$ 4,270
Estimate for the Year Ended December 31, 2017	3,077
2,018	1,921
2,019	538
2,020	287
2,021	269
Core Deposits [Member]
For the Year Ended December 31, 2016 (actual)	3,292
Estimate for the Year Ended December 31, 2017	2,913
2,018	1,892
2,019	538
2,020	287
2,021	269
Mechant Draft Processing [Member]
For the Year Ended December 31, 2016 (actual)	212
Estimate for the Year Ended December 31, 2017	164
2,018	29
2,019
2,020
2,021

Note 7 - Deposits and Borrowe71

Note 7 - Deposits and Borrowed Funds (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 18, 2016
Demand Deposit Overdrafts	$ 2,679	$ 3,038
Interest Expense, Time Deposits, $100,000 or More	$ 509	687	$ 893
Unsecured Line of Credit [Member]
Line of Credit Facility, Maximum Borrowing Capacity, Expired				$ 35,000
Long-term Line of Credit		$ 0

Note 7 - Deposits and Borrowe72

Note 7 - Deposits and Borrowed Funds - Deposits Detail (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Noninterest-bearing deposits	$ 2,089,443	$ 2,026,049
Transaction	865,701	860,706
Savings	1,493,427	1,366,936
Time deposits less than $100 thousand	133,712	150,780
Time deposits $100 thousand through $250 thousand	84,925	96,971
Time deposits more than $250 thousand	37,533	39,217
Total deposits	$ 4,704,741	$ 4,540,659

Note 7 - Deposits and Borrowe73

Note 7 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Collateral Carrying Value	$ 227,862	$ 157,625
Short-term borrowed funds	59,078	53,028
US Government-sponsored Enterprises Debt Securities [Member]
Collateral Carrying Value	74,031	98,969
Agency Residential MBS [Member]
Collateral Carrying Value	63,277
US States and Political Subdivisions Debt Securities [Member]
Collateral Carrying Value		3,975
Corporate Debt Securities [Member]
Collateral Carrying Value	$ 90,554	$ 54,681

Note 7 - Deposits and Borrowe74

Note 7 - Deposits and Borrowed Funds - Borrowed Funds, Highest Month End Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Securities Sold under Agreements to Repurchase [Member]
Securities sold under repurchase agreements	$ 74,815	$ 89,484

Note 8 - Shareholders' Equity75

Note 8 - Shareholders' Equity (Details Textual) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2014USD ($)$ / sharesshares	Feb. 13, 2009$ / sharesshares
Share Price | $ / shares	$ 62.93
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	325,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ / shares	$ 5.97	$ 5.46	$ 5.91
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options | $	$ 1,605
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value | $	3,242	$ 504	$ 1,309
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value | $	$ 1,269	$ 1,321	$ 1,397
Preferred Stock, Shares Outstanding	0
Class of Warrant or Right, Number of Securities Called by Warrants or Rights				246,640
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares				$ 50.92
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	1,750,000
Additional Classes of Stock Authorized	2
Additional Classes of Stock Authorized, Shares Authorized, Per Class	1,000,000
Common Stock, Shares Authorized	150,000,000	150,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	18,000	21,000
Common Stock, Shares, Outstanding	25,907,000	25,528,000
Common Class B [Member]
Common Stock, Shares, Outstanding	0
NQSO [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period	10 years
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	325,000	343,000	294,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	1,211,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year 292 days
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense | $	$ (394)	$ 1,284	$ 447
Restricted Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $	$ 753	$ 741	1,115
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms	1 year 36 days	1 year 109 days
Allocated Share-based Compensation Expense | $	$ 1,228	$ 535	$ 575
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	0	0

Note 8 - Shareholders' Equity -

Note 8 - Shareholders' Equity - Information About Stock Options Granted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Options outstanding, range of exercise price, lower range (in dollars per share)	$ 40
Options outstanding, range of exercise price, upper range (in dollars per share)	$ 60
Options outstanding, number outstanding (in shares)	1,273	1,549
Options outstanding, aggregate intrinsic value	$ 19,819
Options outstanding, weighted average remaining contractual life (Year)	5 years 255 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 47
Options exercisable, number outstanding (in shares)	720
Options exercisable, aggregate intrinsic value	$ 9,216
Options exercisable, weighted average remaining contractual life (Year)	3 years 182 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 50
Range 1 [Member]
Options outstanding, range of exercise price, lower range (in dollars per share)	40
Options outstanding, range of exercise price, upper range (in dollars per share)	$ 45
Options outstanding, number outstanding (in shares)	594
Options outstanding, aggregate intrinsic value	$ 12,072
Options outstanding, weighted average remaining contractual life (Year)	8 years 36 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 43
Options exercisable, number outstanding (in shares)	107
Options exercisable, aggregate intrinsic value	$ 2,105
Options exercisable, weighted average remaining contractual life (Year)	5 years 146 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 43
Range 2 [Member]
Options outstanding, range of exercise price, lower range (in dollars per share)	45
Options outstanding, range of exercise price, upper range (in dollars per share)	$ 50
Options outstanding, number outstanding (in shares)	112
Options outstanding, aggregate intrinsic value	$ 1,791
Options outstanding, weighted average remaining contractual life (Year)	2 years 146 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 47
Options exercisable, number outstanding (in shares)	112
Options exercisable, aggregate intrinsic value	$ 1,791
Options exercisable, weighted average remaining contractual life (Year)	2 years 146 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 47
Range 3 [Member]
Options outstanding, range of exercise price, lower range (in dollars per share)	50
Options outstanding, range of exercise price, upper range (in dollars per share)	$ 55
Options outstanding, number outstanding (in shares)	472
Options outstanding, aggregate intrinsic value	$ 5,360
Options outstanding, weighted average remaining contractual life (Year)	3 years 328 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 52
Options exercisable, number outstanding (in shares)	406
Options exercisable, aggregate intrinsic value	$ 4,724
Options exercisable, weighted average remaining contractual life (Year)	3 years 146 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 51
Range 4 [Member]
Options outstanding, range of exercise price, lower range (in dollars per share)	55
Options outstanding, range of exercise price, upper range (in dollars per share)	$ 60
Options outstanding, number outstanding (in shares)	95
Options outstanding, aggregate intrinsic value	$ 596
Options outstanding, weighted average remaining contractual life (Year)	3 years 36 days
Options outstanding, weighted average exercise price (in dollars per share)	$ 57
Options exercisable, number outstanding (in shares)	95
Options exercisable, aggregate intrinsic value	$ 596
Options exercisable, weighted average remaining contractual life (Year)	3 years 36 days
Options exercisable, weighted average exercise price (in dollars per share)	$ 57

Note 8 - Shareholders' Equity77

Note 8 - Shareholders' Equity - Weighted Average Assumptions Used in the Option Pricing to Value Stock Options Granted (Details) - $ / shares		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Expected volatility (1)	[1]	22.00%	20.00%	16.00%
Expected life in years (2) (Year)	[2]	4 years 292 days	4 years 328 days	4 years 328 days
Risk-free interest rate		1.41%	1.36%	1.59%
Expected dividend yield (3)	[3]	4.49%	3.64%	3.32%
Fair value per award (in dollars per share)		$ 5.97	$ 5.46	$ 5.91
[1]	Measured using daily price changes of Company's stock over respective expected term of the option and the implied volatility derived from the market prices of the Company's stock and traded options.
[2]	The number of years that the Company estimates that the options will be outstanding prior to exercise.
[3]	The risk-free rate over the expected life based on the US Treasury yield curve in effect at the time of the grant.

Note 8 - Shareholders' Equity78

Note 8 - Shareholders' Equity - Summary of Option Activity (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Outstanding at January 1, 2016 (in shares) | shares	1,549
Outstanding at January 1, 2016 (in dollars per share) | $ / shares	$ 48.83
Granted (in shares) | shares	325
Granted (in dollars per share) | $ / shares	$ 42.33
Exercised (in shares) | shares	(500)
Exercised (in dollars per share) | $ / shares	$ 48.08
Forfeited or expired (in shares) | shares	(101)
Forfeited or expired (in dollars per share) | $ / shares	$ 50.17
Outstanding at December 31, 2016 (in shares) | shares	1,273
Outstanding at December 31, 2016 (in dollars per share) | $ / shares	$ 47.36
Outstanding at December 31, 2016 (Year)	5 years 255 days
Exercisable at December 31, 2016 (in shares) | shares	720
Exercisable at December 31, 2016 (in dollars per share) | $ / shares	$ 50.12
Exercisable at December 31, 2016 (Year)	3 years 182 days

Note 8 - Shareholders' Equity79

Note 8 - Shareholders' Equity - Summary of Nonvested Option Activity (Details) shares in Thousands	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Nonvested at January 1, 2016 (in shares) | shares	493
Nonvested at January 1, 2016 (in dollars per share) | $ / shares	$ 5.45
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | shares	325
Granted (in dollars per share) | $ / shares	$ 5.97
Vested (in shares) | shares	(239)
Vested (in dollars per share) | $ / shares	$ 5.32
Forfeited (in shares) | shares	(26)
Forfeited (in dollars per share) | $ / shares	$ 5.82
Nonvested at December 31, 2016 (in shares) | shares	553
Nonvested at December 31, 2016 (in dollars per share) | $ / shares	$ 5.80

Note 8 - Shareholders' Equity80

Note 8 - Shareholders' Equity - Summary of the Status of Restricted Performance Shares (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Outstanding at January 1, (in shares)	45	50
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	18	21
Issued upon vesting (in shares)	(15)	(17)
Forfeited (in shares)		(9)
Outstanding at December 31, (in shares)	48	45

Note 9 - Risk-based Capital (De

Note 9 - Risk-based Capital (Details Textual)	Jan. 01, 2019	Dec. 31, 2016	Dec. 31, 2015
Capital Conservation Buffer		0.625%	0.00%
Scenario, Forecast [Member]
Capital Conservation Buffer	2.50%

Note 9 - Risk-based Capital - C

Note 9 - Risk-based Capital - Capital Ratios for the Company and the Bank (Details) - USD ($) $ in Thousands		Dec. 31, 2016		Dec. 31, 2015
Company		$ 443,574		$ 402,876
Company		14.85%		12.82%
Company		$ 153,126		$ 141,417
Company		5.125%	[1]	4.50%
Company
Company
Company		$ 443,574		$ 402,876
Company		14.85%		12.82%
Company		$ 197,944		$ 188,557
Company		6.625%	[1]	6.00%
Company
Company
Company		$ 476,595		$ 420,731
Company		15.95%		13.39%
Company		$ 257,700		$ 251,409
Company		8.625%	[1]	8.00%
Company
Company
Company		$ 443,574	[2]	$ 402,876
Company	[2]	8.46%		7.99%
Company	[2]	$ 209,702		$ 201,606
Company	[2]	4.00%		4.00%
Company
Company
Westamerica Bank [Member]
Company		$ 344,739		$ 340,918
Company		11.70%		11.00%
Company		$ 150,982		$ 139,412
Company		5.125%	[1]	4.50%
Company		$ 191,489		$ 201,373
Company		6.50%		6.50%
Company		$ 344,739		$ 340,918
Company		11.70%		11.00%
Company		$ 195,172		$ 185,883
Company		6.625%	[1]	6.00%
Company		$ 235,680		$ 247,844
Company		8.00%		8.00%
Company		$ 383,572		$ 361,880
Company		13.02%		11.68%
Company		$ 254,092		$ 247,844
Company		8.625%	[1]	8.00%
Company		$ 294,600		$ 309,805
Company		10.00%		10.00%
Company		$ 344,739	[2]	$ 340,918
Company	[2]	6.63%		6.82%
Company	[2]	$ 208,005		$ 199,919
Company	[2]	4.00%		4.00%
Company	[2]	$ 260,006		$ 249,899
Company	[2]	5.00%		5.00%
[1]	Includes 0.625% capital conservation buffer.
[2]	The leverage ratio consists of Tier 1capital divided by the most recent quarterly average total assets, excluding certain intangible assets.

Note 10 - Income Taxes (Details

Note 10 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 57	$ 88
Operating Loss Carryforwards	0
Tax Credit Carryforward, Amount	$ 0
Internal Revenue Service (IRS) [Member] | Tax Year 2015 [Member]
Open Tax Year	2,015
Internal Revenue Service (IRS) [Member] | Tax Year 2014 [Member]
Open Tax Year	2,014
Internal Revenue Service (IRS) [Member] | Tax Year 2013 [Member]
Open Tax Year	2,013
California Franchise Tax Board [Member] | Tax Year 2015 [Member]
Open Tax Year	2,015
California Franchise Tax Board [Member] | Tax Year 2014 [Member]
Open Tax Year	2,014
California Franchise Tax Board [Member] | Tax Year 2013 [Member]
Open Tax Year	2,013
California Franchise Tax Board [Member] | Tax Year 2012 [Member]
Open Tax Year	2,012

Note 10 - Income Taxes - Compon

Note 10 - Income Taxes - Components of Net Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax asset
Allowance for credit losses	$ 11,801	$ 13,466
State franchise taxes	2,679	2,612
Securities available for sale	7,283
Deferred compensation	8,043	8,082
Real estate owned	756	1,062
Purchased assets and assumed liabilities	3,026	4,975
Post-retirement benefits	903	1,072
Employee benefit accruals	3,399	3,772
VISA Class B shares	137	1,691
Limited partnership investments	86	760
Impaired capital assets	18,465	19,074
Accrued liabilities	967
Premises and equipment	577	205
Other	724	397
Total deferred tax asset	58,846	57,168
Deferred tax liability
Net deferred loan fees	346	456
Intangible assets	2,955	4,294
Securities available for sale		542
Other	128	128
Total deferred tax liability	3,429	5,420
Net deferred tax asset	$ 55,417	$ 51,748

Note 10 - Income Taxes - Provis

Note 10 - Income Taxes - Provision for Federal and State Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current income tax expense:
Federal	$ 16,258	$ 9,647	$ 11,950
State	7,292	6,738	7,802
Total current	23,550	16,385	19,752
Deferred income tax (benefit) expense:
Federal	(2,604)	1,643	(1,220)
State	158	(109)	(225)
Total deferred	(2,446)	1,534	(1,445)
Provision for income taxes	$ 21,104	$ 17,919	$ 18,307

Note 10 - Income Taxes - Reconc

Note 10 - Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Federal income taxes due at statutory rate	$ 27,985	$ 26,835	$ 27,634
Reductions in income taxes resulting from:
Interest on state and municipal securities and loans not taxable for federal income tax purposes	(8,382)	(9,046)	(10,173)
State franchise taxes, net of federal income tax benefit	4,843	4,309	4,925
Tax credits	(2,286)	(2,600)	(2,700)
Dividend received deduction	(52)	(45)	(39)
Cash value life insurance	(607)	(599)	(641)
Other	(397)	(935)	(699)
Provision for income taxes	$ 21,104	$ 17,919	$ 18,307

Note 10 - Income Taxes - Reco87

Note 10 - Income Taxes - Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance at January 1,	$ 1,243	$ 1,635
Additions for tax positions taken in prior years		55
Reductions for tax positions taken in prior years	(144)	(447)
Balance at December 31,	$ 1,099	$ 1,243

Note 11 - Fair Value Measurem88

Note 11 - Fair Value Measurements (Details Textual) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014	Dec. 31, 2013
Securities Selected for OTTI Analysis, Market Price, Threshold	95.00%
Securities Selected for OTTI Analysis, Market to Book Ratio, Threshold	95
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount				$ 437,715
Loans and Leases Receivable, Allowance		$ 25,954	$ 29,771		$ 31,485	$ 31,693
Purchased Covered Loans [Member]
Loans and Leases Receivable, Allowance		53				1,561
Fair Value Discount, Credit Default Risk, Purchased Loans		0	152
Purchased Non-Covered Loans [Member]
Loans and Leases Receivable, Allowance		1,446	967		$ 2,120
Fair Value Discount, Credit Default Risk, Purchased Loans		$ 4,058	$ 6,432
Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Appraisal Rate		10.00%

Note 11 - Fair Value Measurem89

Note 11 - Fair Value Measurements - Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Investment securities available for sale		$ 1,890,758	$ 1,570,216
Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		1,890,758	1,570,216
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		673	998
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		1,890,085	1,569,218
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
US Government-sponsored Enterprises Debt Securities [Member]
Investment securities available for sale		138,660	301,882
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		138,660	301,882
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		138,660	301,882
US Government-sponsored Enterprises Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Agency Residential MBS [Member]
Investment securities available for sale		691,499	202,544
Agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		691,499	202,544
Agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		691,499	202,544
Agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Non-agency Residential MBS [Member]
Investment securities available for sale		271	370
Non-agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		271	370
Non-agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Non-agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		271	370
Non-agency Residential MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Non-agency Commercial MBS [Member]
Investment securities available for sale		2,025	2,379
Non-agency Commercial MBS [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		2,025	2,379
Non-agency Commercial MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Non-agency Commercial MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		2,025	2,379
Non-agency Commercial MBS [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
US States and Political Subdivisions Debt Securities [Member]
Investment securities available for sale		183,411	157,509
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		183,411	157,509
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		183,411	157,509
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Asset-backed Securities [Member]
Investment securities available for sale		695	2,003
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		695	2,003
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		695	2,003
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
FHLMC and FNMA Stock [Member]
Investment securities available for sale	[1],[2]	10,869	4,329
FHLMC and FNMA Stock [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		10,869	4,329
FHLMC and FNMA Stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		17	7
FHLMC and FNMA Stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		10,852	4,322
FHLMC and FNMA Stock [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Domestic Corporate Debt Securities [Member]
Investment securities available for sale		860,857	896,369
Domestic Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		860,857	896,369
Domestic Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale
Domestic Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		860,857	896,369
Domestic Corporate Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
Other Securities [Member]
Investment securities available for sale		2,471	2,831
Other Securities [Member] | Fair Value, Measurements, Recurring [Member]
Investment securities available for sale		2,471	2,831
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Investment securities available for sale		656	991
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Investment securities available for sale		1,815	1,840
Other Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Investment securities available for sale
[1]	Federal Home Loan Mortgage Corporation
[2]	Federal National Mortgage Association

Note 11 - Fair Value Measurem90

Note 11 - Fair Value Measurements - Assets Measured at Fair Value on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Fair Value	$ 12,620	$ 24,897
Total Losses	(705)	(769)
Fair Value, Inputs, Level 1 [Member]
Fair Value
Fair Value, Inputs, Level 2 [Member]
Fair Value
Fair Value, Inputs, Level 3 [Member]
Fair Value	12,620	24,897
Other Real Estate Owned [Member]
Fair Value	3,095	9,264
Total Losses	(705)	(320)
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	3,095	9,264
Impaired Loans [Member]
Fair Value	9,525	15,633
Total Losses		(449)
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value	$ 9,525	$ 15,633

Note 11 - Fair Value Measurem91

Note 11 - Fair Value Measurements - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investment securities held to maturity	$ 1,340,741	$ 1,325,699
Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	462,271	433,044
Investment securities held to maturity
Loans
Deposits
Short-term borrowed funds
Fair Value, Inputs, Level 2 [Member]
Cash and due from banks
Investment securities held to maturity	1,340,741	1,325,699
Loans
Deposits	4,448,571	4,253,691
Short-term borrowed funds	59,078	53,028
Fair Value, Inputs, Level 3 [Member]
Cash and due from banks
Investment securities held to maturity
Loans	1,337,774	1,517,394
Deposits	254,226	285,764
Short-term borrowed funds
Reported Value Measurement [Member]
Cash and due from banks	462,271	433,044
Investment securities held to maturity	1,346,312	1,316,075
Loans	1,326,757	1,503,625
Deposits	4,704,741	4,540,659
Short-term borrowed funds	59,078	53,028
Estimate of Fair Value Measurement [Member]
Cash and due from banks	462,271	433,044
Investment securities held to maturity	1,340,741	1,325,699
Loans	1,337,774	1,517,394
Deposits	4,702,797	4,539,455
Short-term borrowed funds	$ 59,078	$ 53,028

Note 12 - Lease Commitments (De

Note 12 - Lease Commitments (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Facilities Leased	61
Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals	$ 2,157
Operating Leases, Rent Expense, Minimum Rentals	6,823	$ 8,359	$ 8,798
Operating Leases, Rent Expense, Sublease Rentals	435	1,721	1,833
Operating Leases, Rent Expense, Net	$ 6,388	$ 6,638	$ 6,965
Banking Offices Owned	30

Note 12 - Lease Commitments - M

Note 12 - Lease Commitments - Minimum Future Rental Payments Under Noncancelable Operating Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 6,335
2,018	5,665
2,019	4,134
2,020	2,584
2,021	1,003
Thereafter	1,045
Total minimum future rental payments	$ 20,766

Note 13 - Commitments and Con94

Note 13 - Commitments and Contingent Liabilities (Details Textual) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Unfunded Loan Commitments	$ 304,508,000	$ 299,884,000
Other Liabilities [Member]
Reserve for Unfunded Commitments	2,408,000	2,593,000
Financial Standby Letter of Credit [Member]
Letters of Credit Outstanding, Amount	21,732,000	26,149,000
Commercial Standby Letters of Credit [Member]
Letters of Credit Outstanding, Amount	$ 0	$ 40,000

Note 14 - Retirement Benefit 95

Note 14 - Retirement Benefit Plans (Details Textual) - USD ($) xbrli-pure in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Contribution Plan, Cost Recognized	$ 1,000	$ 734	$ 1,002
Employee Stock Ownership Plan (ESOP), Compensation Expense	1,075	$ 1,147	$ 1,159
Defined Benefit Plan, Future Amortization of Transition Obligation (Asset)	$ 61
Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year	0.00%

Note 14 - Retirement Benefit 96

Note 14 - Retirement Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Service (benefit) cost	$ (153)	$ (202)	$ 288
Interest cost	108	106	122
Amortization of unrecognized transition obligation	61	61	61
Net periodic cost (benefit)	16	(35)	471
Amortization of unrecognized transition obligation, net of tax	(36)	(36)	(36)
Total recognized in net periodic (benefit) cost and accumulated other comprehensive income	$ (20)	$ (71)	$ 435

Note 14 - Retirement Benefit 97

Note 14 - Retirement Benefit Plans - Obligation and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Benefit obligation at beginning of year	$ 2,522	$ 2,782	$ 2,544
Service (benefit) cost	(153)	(202)	288
Interest cost	108	106	122
Benefits paid	(158)	(164)	(172)
Benefit obligation at end of year	2,319	2,522	2,782
Accumulated post-retirement benefit obligation	2,522	2,522	2,782	$ 2,319	$ 2,522	$ 2,782
Accumulated post-retirement benefit obligation in excess of plan assets				2,319	2,522	2,782
Retirees [Member]
Benefit obligation at beginning of year	1,695	1,732
Benefit obligation at end of year	1,705	1,695	1,732
Accumulated post-retirement benefit obligation	1,705	1,695	1,732	1,705	1,695	1,732
Fully Eligible Participants [Member]
Benefit obligation at beginning of year	809	998
Benefit obligation at end of year	606	809	998
Accumulated post-retirement benefit obligation	606	809	998	606	809	998
Other Participants [Member]
Benefit obligation at beginning of year	18	52
Benefit obligation at end of year	8	18	52
Accumulated post-retirement benefit obligation	$ 8	$ 18	$ 52	$ 8	$ 18	$ 52

Note 14 - Retirement Benefit 98

Note 14 - Retirement Benefit Plans - Assumptions (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Discount rate	4.10%	4.30%	3.80%
Discount rate	4.30%	3.80%	4.80%

Note 14 - Retirement Benefit 99

Note 14 - Retirement Benefit Plans - Estimated Future Benefit Payments (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 158
2,018	150
2,019	142
2,020	135
2,021	129
Years 2022-2026	$ 552

Note 15 - Regulatory Matters (D

Note 15 - Regulatory Matters (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Federal Reserve Bank Average Balance Deposit	$ 365,880	$ 254,600

Note 16 - Other Comprehensiv101

Note 16 - Other Comprehensive Income - Components of Other Comprehensive Income (Loss) and Other Related Tax Effects (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net unrealized gains (losses) arising during the year, before tax	$ (18,610)	$ (8,028)	$ 1,627
Net unrealized gains (losses) arising during the year, tax	7,825	3,375	(684)
Net unrealized gains (losses) arising during the year, net of tax	(10,785)	(4,653)	943
Reclassification of gains (losses) included in net income, before tax
Reclassification of gains (losses) included in net income, tax
Reclassification of gains (losses) included in net income, net of tax
Net unrealized losses arising during the year, before tax	(18,610)	(8,028)	1,627
Net unrealized gains (losses) arising during the year, tax	7,825	3,375	(684)
Net unrealized gains (losses) on securities, net change	(10,785)	(4,653)	943
Post-retirement benefit transition obligation amortization	61	61	61
Deferred tax expense	(25)	(25)	(25)
Post-retirement benefit obligation, net change	36	36	36
Other comprehensive income (loss), before tax	(18,549)	(7,967)	1,688
Other comprehensive income (loss), tax	7,800	3,350	(709)
Other comprehensive (loss) income, net of tax	$ (10,749)	$ (4,617)	$ 979

Note 16 - Other Comprehensiv102

Note 16 - Other Comprehensive Income - Cumulative Other Comprehensive Income (Loss) Balances (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Post-retirement benefit obligation balance	$ (70)	$ (106)	$ (142)
Net unrealized gains (losses) on securities, balance	745	5,398	4,455
Accumulated other comprehensive income (loss), balance	675	5,292	4,313
Post-retirement benefit obligation, net change	36	36	36
Net unrealized gains (losses) on securities, net change	(10,785)	(4,653)	943
Net change	(10,749)	(4,617)	979
Post-retirement benefit obligation balance	(34)	(70)	(106)
Net unrealized gains (losses) on securities, balance	(10,040)	745	5,398
Accumulated other comprehensive income (loss), balance	$ (10,074)	$ 675	$ 5,292

Note 17 - Earnings Per Commo103

Note 17 - Earnings Per Common Share (Details Textual) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	773	1,313	1,133

Note 17 - Earnings Per Commo104

Note 17 - Earnings Per Common Share and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net income	$ 14,453	$ 15,628	$ 14,546	$ 14,226	$ 14,578	$ 14,857	$ 14,761	$ 14,557	$ 15,028	$ 15,154	$ 15,157	$ 15,307	$ 58,853	$ 58,753	$ 60,646
Average Common Shares Outstanding (in shares)													25,612	25,555	26,099
Basic earnings (in dollars per share)	$ 0.56	$ 0.61	$ 0.57	$ 0.56	$ 0.57	$ 0.58	$ 0.58	$ 0.57	$ 0.58	$ 0.58	$ 0.58	$ 0.58	$ 2.30	$ 2.30	$ 2.32
Add common stock equivalents for options (in shares)													66	22	61
Weighted average number of common shares outstanding - diluted (denominator) (in shares)													25,678	25,577	26,160
Diluted earnings (in dollars per share)	$ 0.56	$ 0.61	$ 0.57	$ 0.56	$ 0.57	$ 0.58	$ 0.58	$ 0.57	$ 0.58	$ 0.58	$ 0.58	$ 0.58	$ 2.29	$ 2.30	$ 2.32

Note 18 - Westamerica Bancor105

Note 18 - Westamerica Bancorporation (Parent Company Only Condensed Financial Information) - Statements of Income and Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Salaries and related benefits													$ 51,507	$ 52,192	$ 54,777
Income before taxes and equity in undistributed income of subsidiaries	$ 19,677	$ 21,655	$ 19,659	$ 18,966	$ 19,126	$ 19,534	$ 19,181	$ 18,831	$ 19,534	$ 19,892	$ 19,744	$ 19,783	79,957	76,672	78,953
Income tax benefit													(21,104)	(17,919)	(18,307)
Net income	$ 14,453	$ 15,628	$ 14,546	$ 14,226	$ 14,578	$ 14,857	$ 14,761	$ 14,557	$ 15,028	$ 15,154	$ 15,157	$ 15,307	58,853	58,753	60,646
Other comprehensive (loss) income, net of tax													(10,749)	(4,617)	979
Comprehensive income													48,104	54,136	61,625
Parent Company [Member]
Dividends from subsidiaries													56,824	68,981	75,369
Interest income													25	10	7
Other income													8,315	8,411	7,182
Total income													65,164	77,402	82,558
Interest on borrowings														1	42
Salaries and related benefits													7,079	6,291	6,587
Other expense													3,290	3,424	1,704
Total expense													10,369	9,716	8,333
Income before taxes and equity in undistributed income of subsidiaries													54,795	67,686	74,225
Income tax benefit													1,025	803	742
Earnings of subsidiaries greater (less) than subsidiary dividends													3,033	(9,736)	(14,321)
Net income													58,853	58,753	60,646
Other comprehensive (loss) income, net of tax													(10,749)	(4,617)	979
Comprehensive income													$ 48,104	$ 54,136	$ 61,625

Note 18 - Westamerica Bancor106

Note 18 - Westamerica Bancorporation (Parent Company Only Condensed Financial Information) - Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Premises and equipment, net	$ 36,566	$ 38,693
Other assets	171,724	165,854
Total assets	5,366,083	5,168,875
Liabilities:
Other liabilities	40,897	42,983
Total liabilities	4,804,716	4,636,670
Shareholders' equity	561,367	532,205	$ 526,603	$ 542,934
Total liabilities and shareholders' equity	5,366,083	5,168,875
Non-bank Subsidiaries [Member]
Assets:
Investment	455	455
Parent Company [Member]
Assets:
Cash	64,054	26,453	$ 7,451	$ 12,839
Investment securities available for sale	656	991
Premises and equipment, net	9,165	9,391
Accounts receivable from Westamerica Bank	522	552
Other assets	34,077	33,850
Total assets	577,101	547,389
Liabilities:
Accounts payable to Westamerica Bank	705	737
Other liabilities	15,029	14,447
Total liabilities	15,734	15,184
Shareholders' equity	561,367	532,205
Total liabilities and shareholders' equity	577,101	547,389
Parent Company [Member] | Westamerica Bank [Member]
Assets:
Investment	$ 468,172	$ 475,697

Note 18 - Westamerica Bancor107

Note 18 - Westamerica Bancorporation (Parent Company Only Condensed Financial Information) - Cash Flow Statement (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net income	$ 14,453	$ 15,628	$ 14,546	$ 14,226	$ 14,578	$ 14,857	$ 14,761	$ 14,557	$ 15,028	$ 15,154	$ 15,157	$ 15,307	$ 58,853	$ 58,753	$ 60,646
Depreciation and amortization/accretion													19,939	16,402	15,502
Life insurance premiums paid													(828)	(782)	(751)
Increase in other assets													(2,493)	(1,046)	(2,172)
Stock option compensation expense													1,494	1,272	1,318
Provision (benefit) for deferred income tax													(2,446)	1,534	(1,445)
Increase (decrease) in other liabilities													2,026	(5,754)	4,474
Financing Activities
Exercise of stock options/issuance of shares													24,031	4,848	12,396
Taxes paid by withholding shares for tax purposes													(356)	(357)	(521)
Retirement of common stock													(5,424)	(14,735)	(52,157)
Common stock dividends paid													(39,924)	(39,124)	(39,761)
Net change in cash													29,227	52,208	(91,192)
Supplemental disclosure of cash flow activities:
Interest paid for the period													2,202	2,533	3,822
Income tax payments for the period													19,264	17,666	16,412
Parent Company [Member]
Operating Activities
Net income													58,853	58,753	60,646
Depreciation and amortization/accretion													305	326	341
Decrease (increase) in accounts receivable from affiliates													299	(217)	(17)
Life insurance premiums paid													(683)	(637)	(606)
Increase in other assets													(1,257)	(1,076)	(1,062)
Stock option compensation expense													1,494	1,272	1,318
Tax benefit (increase) decrease upon exercise of stock options and expiration of stock options													(394)	1,284	447
Provision (benefit) for deferred income tax													1,983	(491)	616
Increase (decrease) in other liabilities													1,392	743	(814)
Earnings of subsidiaries (greater) less than subsidiary dividends													(3,033)	9,736	14,321
Gain on sales of property and equipment													(79)	(39)	(88)
Net Cash Provided by Operating Activities													58,880	69,654	75,102
Financing Activities
Exercise of stock options/issuance of shares													24,031	4,848	12,396
Taxes paid by withholding shares for tax purposes													(356)	(357)	(521)
Tax benefit increase (decrease) upon exercise of stock options and expiration of stock options													394	(1,284)	(447)
Retirement of common stock													(5,424)	(14,735)	(52,157)
Common stock dividends paid													(39,924)	(39,124)	(39,761)
Net Cash Used in Financing Activities													(21,279)	(50,652)	(80,490)
Net change in cash													37,601	19,002	(5,388)
Cash at Beginning of Period				$ 26,453				$ 7,451				$ 12,839	26,453	7,451	12,839
Cash at End of Period	$ 64,054				$ 26,453				$ 7,451				64,054	26,453	7,451
Supplemental disclosure of cash flow activities:
Interest paid for the period														1	42
Income tax payments for the period													$ 19,264	$ 17,666	$ 16,412

Note 19 - Quarterly Financia108

Note 19 - Quarterly Financial Information - Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest and loan fee income	$ 33,209	$ 33,468	$ 33,727	$ 33,647	$ 33,888	$ 34,299	$ 34,425	$ 33,917	$ 34,342	$ 34,900	$ 35,403	$ 35,564	$ 134,051	$ 136,529	$ 140,209
Net interest income	32,709	32,945	33,186	33,095	33,325	33,714	33,808	33,258	33,542	34,054	34,503	34,666	131,935	134,105	136,765
(Reversal of) Provision for Loan Losses		(3,200)							200	600	1,000	1,000	(3,200)		2,800
Noninterest income	11,545	11,598	11,702	11,729	11,305	11,993	12,269	12,300	12,545	13,054	13,198	12,990	46,574	47,867	51,787
Noninterest expense	24,577	26,088	25,229	25,858	25,504	26,173	26,896	26,727	26,353	26,616	26,957	26,873	101,752	105,300	106,799
Income before taxes and equity in undistributed income of subsidiaries	19,677	21,655	19,659	18,966	19,126	19,534	19,181	18,831	19,534	19,892	19,744	19,783	79,957	76,672	78,953
Net income	$ 14,453	$ 15,628	$ 14,546	$ 14,226	$ 14,578	$ 14,857	$ 14,761	$ 14,557	$ 15,028	$ 15,154	$ 15,157	$ 15,307	$ 58,853	$ 58,753	$ 60,646
Basic earnings (in dollars per share)	$ 0.56	$ 0.61	$ 0.57	$ 0.56	$ 0.57	$ 0.58	$ 0.58	$ 0.57	$ 0.58	$ 0.58	$ 0.58	$ 0.58	$ 2.30	$ 2.30	$ 2.32
Diluted earnings (in dollars per share)	0.56	0.61	0.57	0.56	0.57	0.58	0.58	0.57	0.58	0.58	0.58	0.58	2.29	2.30	2.32
Dividends paid (in dollars per share)	0.39	0.39	0.39	0.39	0.39	0.38	0.38	0.38	0.38	0.38	0.38	0.38	1.56	1.53	1.52
Price range, common stock (in dollars per share)	62.93												62.93
Minimum [Member]
Price range, common stock (in dollars per share)	48.20	46.61	45.86	40.72	42.96	43	42.70	40.68	42.71	46.12	47.85	48.36	48.20	42.96	42.71
Maximum [Member]
Price range, common stock (in dollars per share)	$ 65.34	$ 50.96	$ 51.53	$ 49.63	$ 49.64	$ 51.90	$ 51.69	$ 48.44	$ 51.24	$ 53.93	$ 55.34	$ 56.51	$ 65.34	$ 49.64	$ 51.24