Westamerica Bancorporation (WABC) 10-Q 31 Jul 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 23, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	WESTAMERICA BANCORPORATION
Trading Symbol	wabc
Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		25,550,874
Amendment Flag	false
Entity Central Index Key	311,094
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 289,606	$ 380,836
Investment securities available for sale	1,634,878	1,600,781
Investment securities held to maturity, with fair values of: $1,164,603 at June 30, 2015 and $1,048,562 at December 31, 2014	1,159,581	1,038,658
Loans	1,631,271	1,700,290
Allowance for loan losses	(30,828)	(31,485)
Loans, net of allowance for loan losses	1,600,443	1,668,805
Other real estate owned	9,260	6,374
Premises and equipment, net	37,945	37,852
Identifiable intangibles, net	12,331	14,287
Goodwill	121,673	121,673
Other assets	165,513	166,458
Total Assets	5,031,230	5,035,724
Deposits:
Noninterest bearing deposits	1,930,551	1,910,781
Interest bearing deposits	2,424,293	2,438,410
Total deposits	4,354,844	4,349,191
Short-term borrowed funds	82,747	89,784
Federal Home Loan Bank advances		20,015
Other liabilities	68,301	50,131
Total Liabilities	4,505,892	4,509,121
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 25,529 at June 30, 2015 and 25,745 at December 31, 2014	377,339	378,132
Deferred compensation	2,711	2,711
Accumulated other comprehensive income	3,988	5,292
Retained earnings	141,300	140,468
Total Shareholders' Equity	525,338	526,603
Total Liabilities and Shareholders' Equity	$ 5,031,230	$ 5,035,724

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Investment securities held to maturity, fair value (in Dollars)	$ 1,164,603	$ 1,048,562
Common stock, no par valuе (in Dollars per share)	$ 0	$ 0
Common stock, sharеs authorizеd	150,000	150,000
Common stock, sharеs issuеd	25,529	25,745
Common stock, sharеs outstanding	25,529	25,745

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest and Fee Income:
Loans	$ 20,035	$ 22,787	$ 40,265	$ 45,688
Investment securities available for sale	7,999	5,875	15,468	11,505
Investment securities held to maturity	6,391	6,741	12,609	13,774
Total Interest and Fee Income	34,425	35,403	68,342	70,967
Interest Expense:
Deposits	601	754	1,243	1,508
Short-term borrowed funds	16	21	32	41
Term repurchase agreement	0	24	0	49
Federal Home Loan Bank advances	0	101	1	200
Total Interest Expense	617	900	1,276	1,798
Net Interest Income	33,808	34,503	67,066	69,169
Provision for Loan Losses	0	1,000	0	2,000
Net Interest Income After Provision For Loan Losses	33,808	33,503	67,066	67,169
Noninterest Income:
Service charges on deposit accounts	5,694	6,105	11,401	12,115
Merchant processing services	1,783	1,820	3,486	3,744
Debit card fees	1,534	1,534	2,990	2,939
Other service fees	683	688	1,348	1,349
Trust fees	672	615	1,378	1,269
ATM processing fees	627	634	1,212	1,254
Financial services commissions	198	221	351	392
Other	1,078	1,581	2,403	3,126
Total Noninterest Income	12,269	13,198	24,569	26,188
Noninterest Expense:
Salaries and related benefits	13,696	13,926	27,034	28,052
Occupancy	3,726	3,746	7,453	7,473
Outsourced data processing services	2,111	2,115	4,219	4,220
Furniture and equipment	1,158	1,005	2,277	2,010
Amortization of identifiable intangibles	955	1,058	1,956	2,163
Courier service	598	665	1,141	1,275
Professional fees	582	577	1,130	1,007
Other real estate owned	52	(270)	367	(620)
Other	4,018	4,135	8,046	8,250
Total Noninterest Expense	26,896	26,957	53,623	53,830
Income Before Income Taxes	19,181	19,744	38,012	39,527
Provision for income taxes	4,420	4,587	8,694	9,063
Net Income	$ 14,761	$ 15,157	$ 29,318	$ 30,464
Average Common Shares Outstanding (in Shares)	25,514	26,175	25,582	26,303
Diluted Average Common Shares Outstanding (in Shares)	25,536	26,238	25,595	26,387
Per Common Share Data:
Basic earnings (in Dollars per share)	$ 0.58	$ 0.58	$ 1.15	$ 1.16
Diluted earnings (in Dollars per share)	0.58	0.58	1.15	1.15
Dividends paid (in Dollars per share)	$ 0.38	$ 0.38	$ 0.76	$ 0.76

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net Income	$ 14,761	$ 15,157	$ 29,318	$ 30,464
Other comprehensive income:
(Decrease) increase in net unrealized gains on securities available for sale	(9,698)	6,366	(2,280)	14,189
Deferred tax benefit (expense)	4,078	(2,677)	958	(5,966)
(Decrease) increase in net unrealized gains on securities available for sale, net of tax	(5,620)	3,689	(1,322)	8,223
Post-retirement benefit transition obligation amortization	15	15	30	30
Deferred tax expense	(6)	(6)	(12)	(12)
Post-retirement benefit transition obligation amortization, net of tax	9	9	18	18
Total Other Comprehensive (Loss) Income	(5,611)	3,698	(1,304)	8,241
Total Comprehensive Income	$ 9,150	$ 18,855	$ 28,014	$ 38,705

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders’ Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Accumulated Deferred Compensation [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2013	$ 378,946	$ 2,711	$ 4,313	$ 156,964	$ 542,934
Balance (in Shares) at Dec. 31, 2013	26,510
Net income for the year				30,464	30,464
Other comprehensive income			8,241		8,241
Exercise of stock options	$ 12,178				12,178
Exercise of stock options (in Shares)	252
Tax benefit decrease upon expiration/ exercise of stock options	$ (396)				(396)
Restricted stock activity	$ 1,027				1,027
Restricted stock activity (in Shares)	19
Stock based compensation	$ 700				700
Stock awarded to employees	$ 69				69
Stock awarded to employees (in Shares)	1
Retirement of common stock including repurchases	$ (10,342)			(26,013)	(36,355)
Retirement of common stock including repurchases (in Shares)	(708)
Dividends				(20,059)	(20,059)
Balance at Jun. 30, 2014	$ 382,182	2,711	12,554	141,356	538,803
Balance (in Shares) at Jun. 30, 2014	26,074
Balance at Dec. 31, 2014	$ 378,132	2,711	5,292	140,468	526,603
Balance (in Shares) at Dec. 31, 2014	25,745
Net income for the year				29,318	29,318
Other comprehensive income			(1,304)		(1,304)
Exercise of stock options	$ 3,602				3,602
Exercise of stock options (in Shares)	81
Tax benefit decrease upon expiration/ exercise of stock options	$ (1,206)				(1,206)
Restricted stock activity	$ 741				741
Restricted stock activity (in Shares)	17
Stock based compensation	$ 672				672
Stock awarded to employees	$ 69				69
Stock awarded to employees (in Shares)	2
Retirement of common stock including repurchases	$ (4,671)			(9,019)	(13,690)
Retirement of common stock including repurchases (in Shares)	(316)
Dividends				(19,467)	(19,467)
Balance at Jun. 30, 2015	$ 377,339	$ 2,711	$ 3,988	$ 141,300	$ 525,338
Balance (in Shares) at Jun. 30, 2015	25,529

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Operating Activities:
Net income		$ 29,318	$ 30,464
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		7,957	7,210
Loan loss provision		0	2,000
Net amortization of deferred loan fees		(149)	(134)
Decrease in interest income receivable		54	105
Increase in net deferred tax asset		(166)	(2,624)
(Increase) decrease in other assets		(1,064)	1,426
Stock option compensation expense		672	700
Tax benefit decrease upon expiration/exercise of stock options		1,206	396
Decrease in income taxes payable		(640)	(66)
Increase (decrease) in interest expense payable		25	(1)
(Decrease) increase in other liabilities		(2,939)	7,147
Gain on sale of other assets			(400)
Net loss on sale of premises and equipment		11	17
Net gain on sale of foreclosed assets			(810)
Writedown of foreclosed assets		243	108
Net Cash Provided by Operating Activities		34,528	45,538
Investing Activities:
Net repayments of loans		$ 66,820	42,381
Proceeds from FDIC1 loss-sharing indemnification	[1]		6,703
Purchases of investment securities available for sale		$ (627,164)	(382,123)
Proceeds from sale/maturity/calls of securities available for sale		604,708	225,777
Purchases of investment securities held to maturity		(189,632)	(18,373)
Proceeds from maturity/calls of securities held to maturity		72,440	74,179
Purchases of premises and equipment		(1,833)	(1,696)
Net change in FRB2/FHLB3 securities	[2],[3]	940	3,248
Proceeds from sale of foreclosed assets		100	6,080
Net Cash Used in Investing Activities		(73,621)	(43,824)
Financing Activities:
Net change in deposits		5,661	49,689
Net change in short-term borrowings and FHLB3 advances	[2]	(27,037)	6,105
Exercise of stock options/issuance of shares		3,602	12,178
Tax benefit decrease upon expiration/exercise of stock options		(1,206)	(396)
Retirement of common stock including repurchases		(13,690)	(36,355)
Common stock dividends paid		(19,467)	(20,059)
Net Cash (Used in) Provided by Financing Activities		(52,137)	11,162
Net Change In Cash and Due from Banks		(91,230)	12,876
Cash and Due from Banks at Beginning of Period		380,836	472,028
Cash and Due from Banks at End of Period		289,606	484,904
Supplemental disclosure of non cash activities:
Loan collateral transferred to other real estate owned		3,229	968
Securities purchases pending settlement		24,952
Supplemental disclosure of cash flow activities:
Interest paid for the period		1,274	1,957
Income tax payments for the period		$ 9,500	$ 11,754
[1]	Federal Deposit Insurance Corporation ("FDIC")
[2]	Federal Home Loan Bank ("FHLB")
[3]	Federal Reserve Bank ("FRB")

Note 1 - Basis of Presentation

Note 1 - Basis of Presentation	6 Months Ended
	Jun. 30, 2015
Disclosure Text Block [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1: Basis of Presentation The accompanying unaudited consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission and follow general practices within the banking industry. The results of operations reflect interim adjustments, all of which are of a normal recurring nature and which, in the opinion of Management, are necessary for a fair presentation of the results for the interim periods presented. The interim results for the three and six months ended June 30, 2015 are not necessarily indicative of the results expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes as well as other information included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014.

Note 2 - Accounting Policies

Note 2 - Accounting Policies	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Note 2: Accounting Policies The most significant accounting policies followed by the Company are presented in Note 1 to the audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. These policies, along with the disclosures presented in the other financial statement notes and in this discussion, provide information on how significant assets and liabilities are valued in the financial statements and how those values are determined. Based on the valuation techniques used and the sensitivity of financial statement amounts to the methods, assumptions, and estimates underlying those amounts, Management has identified the allowance for loan losses accounting to be the accounting area requiring the most subjective or complex judgments, and as such could be most subject to revision as new information becomes available. A discussion of the factors affecting accounting for the allowance for loan losses and purchased loans is included in the “Loan Portfolio Credit Risk” section in Item 2 of this document. Certain amounts in prior periods have been reclassified to conform to the current presentation. Application of these principles requires the Company to make certain estimates, assumptions, and judgments that affect the amounts reported in the financial statements and accompanying notes. These estimates, assumptions, and judgments are based on information available as of the date of the financial statements; accordingly, as this information changes, the financial statements could reflect different estimates, assumptions, and judgments. Certain accounting policies inherently have a greater reliance on the use of estimates, assumptions and judgments and as such have a greater possibility of producing results that could be materially different than originally reported. Estimates, assumptions and judgments are necessary when assets and liabilities are required to be recorded at fair value, when a decline in the value of an asset not carried on the financial statements at fair value warrants an impairment writedown or valuation reserve to be established, or when an asset or liability needs to be recorded contingent upon a future event. Carrying assets and liabilities at fair value inherently results in more financial statement volatility. The fair values and the information used to record valuation adjustments for certain assets and liabilities are based either on quoted market prices or are provided by other third-party sources, when available. Recently Adopted Accounting Standards FASB ASU 2014-01 Investments- Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects The update also requires a reporting entity to disclose information regarding its investments in qualified affordable housing projects, and the effect of the measurement of its investments in qualified affordable housing projects and the related tax credits on its financial position and results of operations. The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at January 1, 2015, the date adopted. FASB ASU 2014-04, Re - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure, The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at January 1, 2015, the date adopted. FASB ASU 2014-11 Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, . The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at April 1, 2015, the date adopted.

Note 3 - Investment Securities

Note 3 - Investment Securities	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 3: Investment Securities 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 Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In thousands) U.S. Treasury securities $ 3,500 $ 3 $ - $ 3,503 Securities of U.S. Government sponsored entities 431,800 675 (539 ) 431,936 Residential mortgage-backed securities 20,955 1,468 (8 ) 22,415 Commercial mortgage-backed securities 2,638 4 (10 ) 2,632 Obligations of states and political subdivisions 159,738 8,670 (156 ) 168,252 Residential collateralized mortgage obligations 209,448 537 (7,235 ) 202,750 Asset-backed securities 2,672 - (13 ) 2,659 FHLMC 1 2 775 5,014 - 5,789 Corporate securities 794,276 1,829 (3,984 ) 792,121 Other securities 2,039 924 (142 ) 2,821 Total $ 1,627,841 $ 19,124 $ (12,087 ) $ 1,634,878 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 Cost Gross Gross Fair Value (In thousands) Securities of U.S. government sponsored entities $ 912 $ 7 $ - $ 919 Residential mortgage-backed securities 220,364 949 (775 ) 220,538 Commercial mortgage-backed securities 16,498 43 (148 ) 16,393 Obligations of states and political subdivisions 692,585 8,629 (3,720 ) 697,494 Residential collateralized mortgage obligations 229,222 1,880 (1,843 ) 229,259 Total $ 1,159,581 $ 11,508 $ (6,486 ) $ 1,164,603 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 Cost Gross Gross Fair Value (In thousands) U.S. Treasury securities $ 3,500 $ 5 $ - $ 3,505 Securities of U.S. Government sponsored entities 635,278 937 (1,027 ) 635,188 Residential mortgage-backed securities 24,647 1,776 (16 ) 26,407 Commercial mortgage-backed securities 2,923 6 (10 ) 2,919 Obligations of states and political subdivisions 171,907 10,015 (123 ) 181,799 Residential collateralized mortgage obligations 230,347 634 (8,524 ) 222,457 Asset-backed securities 8,349 - (36 ) 8,313 FHLMC 1 2 775 4,393 - 5,168 Corporate securities 511,699 2,169 (1,629 ) 512,239 Other securities 2,039 871 (124 ) 2,786 Total $ 1,591,464 $ 20,806 $ (11,489 ) $ 1,600,781 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 Cost Gross Gross Fair Value (In thousands) Securities of U.S. government sponsored entities $ 1,066 $ 11 $ - $ 1,077 Residential mortgage-backed securities 59,078 1,183 (137 ) 60,124 Obligations of states and political subdivisions 720,189 11,350 (2,358 ) 729,181 Residential collateralized mortgage obligations 258,325 2,236 (2,381 ) 258,180 Total $ 1,038,658 $ 14,780 $ (4,876 ) $ 1,048,562 The amortized cost and fair value of investment securities by contractual maturity are shown in the following table At June 30, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 99,091 $ 99,319 $ 13,500 $ 14,053 Over 1 to 5 years 1,095,152 1,094,069 239,801 241,670 Over 5 to 10 years 155,190 159,881 266,989 269,180 Over 10 years 42,553 45,202 173,207 173,510 Subtotal 1,391,986 1,398,471 693,497 698,413 Mortgage-backed securities and residential collateralized mortgage obligations 233,041 227,797 466,084 466,190 Other securities 2,814 8,610 - - Total $ 1,627,841 $ 1,634,878 $ 1,159,581 $ 1,164,603 Securities available for sale at June 30, 2015 with maturity dates over one year but less than five years include $385,723 $118,469 At December 31, 2014 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 57,891 $ 57,991 $ 15,355 $ 15,855 Over 1 to 5 years 629,200 630,797 228,380 230,248 Over 5 to 10 years 584,872 589,250 285,219 288,631 Over 10 years 58,770 63,006 192,301 195,524 Subtotal 1,330,733 1,341,044 721,255 730,258 Mortgage-backed securities and residential collateralized mortgage obligations 257,917 251,783 317,403 318,304 Other securities 2,814 7,954 - - Total $ 1,591,464 $ 1,600,781 $ 1,038,658 $ 1,048,562 Expected maturities of mortgage-backed securities can differ from contractual maturities because borrowers have the right to call or prepay obligations with or without call or prepayment penalties. In addition, such factors as prepayments and interest rates may affect the yield on the carrying value of mortgage-backed securities. At June 30, 2015 and December 31, 2014, the Company had no high-risk collateralized mortgage obligations as defined by regulatory guidelines. 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 Fair Unrealized Investment Fair Unrealized Investment Fair Unrealized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Securities of U.S. Government sponsored entities 16 $ 138,060 $ (517 ) 1 $ 9,978 $ (22 ) 17 $ 148,038 $ (539 ) Residential mortgage-backed securities - - - 1 795 (8 ) 1 795 (8 ) Commercial mortgage-backed securities 1 900 (7 ) 1 609 (3 ) 2 1,509 (10 ) Obligations of states and political subdivisions 6 2,826 (41 ) 11 3,824 (115 ) 17 6,650 (156 ) Residential collateralized mortgage obligations 2 14,061 (326 ) 29 174,725 (6,909 ) 31 188,786 (7,235 ) Asset-backed securities - - - 1 2,659 (13 ) 1 2,659 (13 ) Corporate securities 83 405,109 (3,417 ) 13 43,809 (567 ) 96 448,918 (3,984 ) Other securities - - - 1 1,858 (142 ) 1 1,858 (142 ) Total 108 $ 560,956 $ (4,308 ) 58 $ 238,257 $ (7,779 ) 166 $ 799,213 $ (12,087 ) 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) Residential mortgage- backed securities 11 $ 176,217 $ (772 ) 1 $ 128 $ (3 ) 12 $ 176,345 $ (775 ) Commercial mortgage-backed securities 2 14,290 (148 ) - - - 2 14,290 (148 ) Obligations of states and political subdivisions 200 169,949 (1,441 ) 81 69,233 (2,279 ) 281 239,182 (3,720 ) Residential collateralized mortgage obligations 15 58,640 (388 ) 14 79,005 (1,455 ) 29 137,645 (1,843 ) Total 228 $ 419,096 $ (2,749 ) 96 $ 148,366 $ (3,737 ) 324 $ 567,462 $ (6,486 ) 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 ratings agencies, changes in the financial condition of the issuer, and, for mortgage-related 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 June 30, 2015. 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 occur in the future. As of June 30, 2015, $758,847 An analysis of gross unrealized losses Investment Securities Available for Sale No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Unrealized Investment Fair Unrealized Investment Fair Unrealized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Securities of U.S. Government sponsored entities 15 $ 253,632 $ (989 ) 1 $ 9,963 $ (38 ) 16 $ 263,595 $ (1,027 ) Residential mortgage-backed securities - - - 2 822 (16 ) 2 822 (16 ) Commercial mortgage-backed securities 1 942 (7 ) 1 803 (3 ) 2 1,745 (10 ) Obligations of states and political subdivisions 7 2,548 (18 ) 17 5,518 (105 ) 24 8,066 (123 ) Residential collateralized mortgage obligations - - - 32 205,074 (8,524 ) 32 205,074 (8,524 ) Asset-backed securities 1 5,008 (7 ) 1 3,305 (29 ) 2 8,313 (36 ) Corporate securities 53 165,026 (1,304 ) 5 34,222 (325 ) 58 199,248 (1,629 ) Other securities - - - 1 1,876 (124 ) 1 1,876 (124 ) Total 77 $ 427,156 $ (2,325 ) 60 $ 261,583 $ (9,164 ) 137 $ 688,739 $ (11,489 ) An analysis of gross unrecognized losses Investment Securities Held to Maturity No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Unrecognized Investment Fair Unrecognized Investment Fair Unrecognized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Residential mortgage-backed securities 4 $ 19,467 $ (132 ) 1 $ 201 $ (5 ) 5 $ 19,668 $ (137 ) Obligations of states and political subdivisions 103 76,202 (439 ) 138 123,370 (1,919 ) 241 199,572 (2,358 ) Residential collateralized mortgage obligations 5 13,932 (166 ) 22 119,513 (2,215 ) 27 133,445 (2,381 ) Total 112 $ 109,601 $ (737 ) 161 $ 243,084 $ (4,139 ) 273 $ 352,685 $ (4,876 ) 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 Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Taxable $ 8,393 $ 5,876 $ 15,946 $ 11,559 Tax-exempt 5,997 6,740 12,131 13,720 Total interest income from investment securities $ 14,390 $ 12,616 $ 28,077 $ 25,279

Note 4 - Loans and Allowance fo

Note 4 - Loans and Allowance for Credit Losses	6 Months Ended
	Jun. 30, 2015
Loans And Allowance For Credit Losses [Abstract]
Loans And Allowance For Credit Losses [Text Block]	Note 4: Loans and Allowance for Credit Losses A summary of the major categories of loans outstanding is shown in the following tables. At June 30, 2015 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Total (In thousands) Originated loans $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 1,425,047 Purchased covered loans: Gross purchased covered loans - - - 2,520 12,786 15,306 Purchased loan discount - - - (133 ) (64 ) (197 ) Purchased non-covered loans: Gross purchased non-covered loans 16,292 143,722 995 706 37,180 198,895 Purchased loan discount (1,168 ) (5,089 ) - (262 ) (1,261 ) (7,780 ) Total $ 386,121 $ 687,243 $ 7,757 $ 137,252 $ 412,898 $ 1,631,271 At December 31, 2014 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 1,470,369 Purchased covered loans: Gross purchased covered loans - - - 2,626 14,920 17,546 Purchased loan discount - - - (434 ) (34 ) (468 ) Purchased non-covered loans: Gross purchased non-covered loans 19,166 157,502 2,919 972 41,656 222,215 Purchased loan discount (1,356 ) (6,492 ) (50 ) (262 ) (1,212 ) (9,372 ) Total $ 391,815 $ 718,604 $ 13,872 $ 149,827 $ 426,172 $ 1,700,290 Changes in the carrying amount of impaired purchased loans were as follows: For the For the Year Ended Impaired purchased loans (In thousands) Carrying amount at the beginning of the period $ 4,672 $ 4,936 Reductions during the period (32 ) (264 ) Carrying amount at the end of the period $ 4,640 $ 4,672 Changes in the accretable yield for purchased loans were as follows: For the For the Accretable yield: (In thousands) Balance at the beginning of the period $ 2,261 $ 2,505 Reclassification from nonaccretable difference 1,365 5,016 Accretion (1,835 ) (5,260 ) Balance at the end of the period $ 1,791 $ 2,261 Accretion $ (1,835 ) $ (5,260 ) Change in FDIC indemnification 230 1,110 (Increase) in interest income $ (1,605 ) $ (4,150 ) The following summarizes activity in the allowance for loan losses: Allowance for Loan Losses Commercial Commercial Real Estate Construction Residential Real Estate Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,470 $ 4,123 $ 730 $ 2,140 $ 7,031 $ 2,339 $ - $ 9,354 $ 31,187 Additions: Provision 1,704 758 (327 ) (82 ) 350 (921 ) - (1,482 ) - Deductions: Chargeoffs (401 ) - - - (576 ) (396 ) - - (1,373 ) Recoveries 334 15 - - 443 222 - - 1,014 Net loan (losses) recoveries (67 ) 15 - - (133 ) (174 ) - - (359 ) Total allowance for loan losses $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Allowance for Loan Losses Commercial Commercial Real Estate Construction Residential Real Estate 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 1,594 621 (241 ) (183 ) 69 (674 ) - (1,186 ) - Deductions: Chargeoffs (461 ) - - - (1,571 ) (431 ) - - (2,463 ) Recoveries 514 30 - - 1,033 229 - - 1,806 Net loan recoveries (losses) 53 30 - - (538 ) (202 ) - - (657 ) Total allowance for loan losses $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Allowance for Credit Losses Commercial Commercial Real Estate Construction Residential Real Estate Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 4,243 $ 11,259 $ 445 $ 491 $ 2,813 $ 2,574 $ - $ 10,284 $ 32,109 Additions: Provision 1,085 (610 ) (3 ) (52 ) (75 ) 115 - 540 1,000 Deductions: Chargeoffs (150 ) - - (30 ) (1,301 ) - - - (1,481 ) Recoveries 119 15 - - 618 18 - - 770 Net loan (losses) recoveries (31 ) 15 - (30 ) (683 ) 18 - - (711 ) Balance at end of period 5,297 10,664 442 409 2,055 2,707 - 10,824 32,398 Liability for off-balance sheet credit exposure 1,733 24 165 - 465 243 23 40 2,693 Total allowance for credit losses $ 7,030 $ 10,688 $ 607 $ 409 $ 2,520 $ 2,950 $ 23 $ 10,864 $ 35,091 FDIC indemnification expired February 6, 2014 for County Bank non-single-family residential collateralized purchased loans; accordingly, such loans have been reclassified from purchased covered loans to purchased non-covered loans as well as the related allowance for credit losses. 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 1,215 (1,584 ) (163 ) 34 139 1,387 - 972 2,000 Deductions: Chargeoffs (210 ) - - (30 ) (2,300 ) (260 ) - - (2,800 ) Recoveries 287 178 3 - 1,018 19 - - 1,505 Net loan recoveries (losses) 77 178 3 (30 ) (1,282 ) (241 ) - - (1,295 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 5,297 10,664 442 409 2,055 2,707 - 10,824 32,398 Liability for off-balance sheet credit exposure 1,733 24 165 - 465 243 23 40 2,693 Total allowance for credit losses $ 7,030 $ 10,688 $ 607 $ 409 $ 2,520 $ 2,950 $ 23 $ 10,864 $ 35,091 The allowance for credit 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 Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,533 $ 1,034 $ - $ - $ - $ - $ - $ - $ 3,567 Collectively evaluated for impairment 4,574 3,862 403 2,058 7,248 1,244 - 7,872 27,261 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Carrying value of loans: Individually evaluated for impairment $ 12,417 $ 5,806 $ - $ - $ - $ 11,712 $ - $ - $ 29,935 Collectively evaluated for impairment 358,580 542,804 6,762 134,421 364,257 174,980 14,892 - 1,596,696 Purchased loans with evidence of credit deterioration - - - - - 4,423 217 - 4,640 Total $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 191,115 $ 15,109 $ - $ 1,631,271 Allowance for Credit Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans Unallocated Total (In thousands) Allowance for credit losses: Individually evaluated for impairment $ 496 $ - $ - $ - $ - $ - $ - $ - $ 496 Collectively evaluated for impairment 7,372 4,245 988 2,241 8,154 2,120 - 8,562 33,682 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 7,868 $ 4,245 $ 988 $ 2,241 $ 8,154 $ 2,120 $ - $ 8,562 $ 34,178 Carrying value of loans: Individually evaluated for impairment $ 11,811 $ 2,970 $ - $ 574 $ 599 $ 12,364 $ - $ - $ 28,318 Collectively evaluated for impairment 362,194 564,624 11,003 146,351 370,243 196,034 16,851 - 1,667,300 Purchased loans with evidence of credit deterioration - - - - - 4,445 227 - 4,672 Total $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 212,843 $ 17,078 $ - $ 1,700,290 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 Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans (1) Total (In thousands) Grade: Pass $ 354,025 $ 518,410 $ 6,762 $ 132,116 $ 363,193 $ 161,919 $ 13,621 $ 1,550,046 Substandard 16,961 30,200 - 2,305 812 36,902 1,685 88,865 Doubtful 11 - - - 9 74 - 94 Loss - - - - 243 - - 243 Purchased loan discount - - - - - (7,780 ) (197 ) (7,977 ) Total $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 191,115 $ 15,109 $ 1,631,271 (1) Credit Risk Profile by Internally Assigned Grade Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans (1) Total (In thousands) Grade: Pass $ 366,487 $ 527,980 $ 11,003 $ 144,902 $ 369,618 $ 182,644 $ 15,509 $ 1,618,143 Substandard 7,506 39,614 - 2,023 734 39,473 2,037 91,387 Doubtful 12 - - - 12 77 - 101 Loss - - - - 478 21 - 499 Purchased loan discount - - - - - (9,372 ) (468 ) (9,840 ) Total $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 212,843 $ 17,078 $ 1,700,290 (1) The following tables summarize loans by delinquency and nonaccrual status: Summary of Loans by Delinquency and Nonaccrual Status Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 367,250 $ 3,053 $ 533 $ - $ 161 $ 370,997 Commercial real estate 534,629 6,554 1,308 - 6,119 548,610 Construction 6,762 - - - - 6,762 Residential real estate 132,049 2,044 328 - - 134,421 Consumer installment and other 360,943 2,617 476 221 - 364,257 Total originated loans 1,401,633 14,268 2,645 221 6,280 1,425,047 Purchased non-covered loans 177,690 2,401 1,082 - 9,942 191,115 Purchased covered loans 15,076 30 - - 3 15,109 Total $ 1,594,399 $ 16,699 $ 3,727 $ 221 $ 16,225 $ 1,631,271 Summary of Loans by Delinquency and Nonaccrual Status Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 372,235 $ 1,704 $ 36 $ - $ 30 $ 374,005 Commercial real estate 557,041 6,500 - - 4,053 567,594 Construction 11,003 - - - - 11,003 Residential real estate 144,021 1,513 817 - 574 146,925 Consumer installment and other 365,753 3,310 625 502 652 370,842 Total originated loans 1,450,053 13,027 1,478 502 5,309 1,470,369 Purchased non-covered loans 196,150 4,204 491 - 11,998 212,843 Purchased covered loans 16,389 389 3 - 297 17,078 Total $ 1,662,592 $ 17,620 $ 1,972 $ 502 $ 17,604 $ 1,700,290 The following is a summary of the effect of nonaccrual loans on interest income: For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 342 $ 276 $ 654 $ 534 Less: Interest income recognized on nonaccrual loans (118 ) (25 ) (324 ) (69 ) Total reduction of interest income $ 224 $ 251 $ 330 $ 465 There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at June 30, 2015 and December 31, 2014. The following summarizes impaired loans: Impaired Loans Recorded Investment Unpaid Related Allowance (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,756 $ 2,821 $ - Commercial real estate 17,161 22,374 - Construction - - - Residential real estate 240 270 - Consumer installment and other 664 711 - Impaired loans with an allowance recorded: Commercial 9,860 9,860 2,533 Commercial real estate 5,109 5,109 1,034 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 12,616 $ 12,681 $ 2,533 Commercial real estate 22,270 27,483 1,034 Construction - - - Residential real estate 240 270 - Consumer installment and other 664 711 - Impaired Loans Recorded Investment Unpaid Related Allowance (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,031 $ 2,095 $ - Commercial real estate 19,478 25,519 - Construction 1,834 1,884 - Residential real estate 574 574 - Consumer installment and other 1,518 1,628 - Impaired loans with an allowance recorded: Commercial 9,910 9,910 496 Commercial real estate - - - Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 11,941 $ 12,005 $ 496 Commercial real estate 19,478 25,519 - Construction 1,834 1,884 - Residential real estate 574 574 - Consumer installment and other 1,518 1,628 - Impaired loans include troubled debt restructured loans. Impaired loans at June 30, 2015, included $ 6,594 Impaired Loans For the Three Months Ended June 30, For the Six Months Ended June 30, 2015 2014 2015 2014 Average Recognized Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,564 $ 147 $ 4,437 $ 60 $ 12,395 $ 293 $ 4,639 $ 127 Commercial real estate 19,715 147 19,800 153 19,017 404 19,549 270 Construction - - 2,035 - 459 - 2,147 - Residential real estate 693 8 162 - 776 14 162 - Consumer installment and other 797 7 1,324 7 1,026 13 1,520 15 Total $ 33,769 $ 309 $ 27,758 $ 220 $ 33,673 $ 724 $ 28,017 $ 412 The following table provides information on troubled debt restructurings: Troubled Debt Restructurings Number of Contracts Pre-Modification Carrying Value Period-End Carrying Value Period-End (In thousands) Commercial 6 $ 2,813 $ 2,557 $ - Commercial real estate 6 3,975 3,797 - Residential real estate 1 241 237 - Consumer installment and other 1 18 3 - Total 14 $ 7,047 $ 6,594 $ - Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 4 $ 3,299 $ 2,992 $ 262 Commercial real estate 2 2,291 2,326 - Consumer installment and other 1 18 14 - Total 7 $ 5,608 $ 5,332 $ 262 During the three and six months ended June 30, 2015, the Company modified one 100 six 1,830 The Company repaid $20,015 thousand of Federal Home Loan Bank (“FHLB”) advances in January 2015, which had been collateralized by loans; the collateral requirements expired upon repayment of the debt. At December 31, 2014, the Company pledged loans to secure borrowings with a carrying value of $20,015 thousand from the FHLB. The loans restricted due to collateral requirements approximated $18,366 thousand at December 31, 2014. There were no loans held for sale at June 30, 2015 and December 31, 2014. At June 30, 2015 and June 30, 2014, the Company held total other real estate owned (OREO) of $ 9,260 486 585 -0- 705

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	6 Months Ended
	Jun. 30, 2015
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	Note 5: Concentration of Credit Risk Under the California Financial Code, loans to any one person owing to a commercial bank at any one time shall not exceed the following limitations: (a) unsecured loans shall not exceed 15 percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank, or (b) secured and unsecured loans in all shall not exceed 25 percent of the sum of the shareholders' equity, allowance for loan losses, capital notes, and debentures of the bank. At June 30, 2015, Westamerica Bank did not have loans to any one customer exceeding these limits; Westamerica Bank had 41 63,076

Note 6 - Other Assets

Note 6 - Other Assets	6 Months Ended
	Jun. 30, 2015
Disclosure Text Block Supplement [Abstract]
Other Assets Disclosure [Text Block]	Note 6: Other Assets Other assets consisted of the following: At June 30, At December 31, (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Federal Home Loan Bank stock (2) - 940 Other investments 201 241 Total cost method equity investments 14,270 15,250 Life insurance cash surrender value 47,717 46,479 Net deferred tax asset 50,669 50,903 Limited partnership investments 16,695 18,673 Interest receivable 19,340 19,394 Prepaid assets 5,195 5,609 Other assets 11,627 10,150 Total other assets $ 165,513 $ 166,458 (1) A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank of San Francisco (FRB) 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. (2) Borrowings from the FHLB must be supported by capital stock holdings. The minimum activity-based requirement is 4.7% of the outstanding advances. The requirement may be adjusted from time to time by the FHLB within limits established in the FHLB's Capital Plan. 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 June 30, 2015, this investment totaled $ 16,695 2,310 464 The amounts recognized in net income for these investments include: For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Investment loss included in pre-tax income $ 750 $ 750 $ 1,425 $ 1,450 Tax credits recognized in provision for income taxes 658 771 1,316 1,542

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Text Block]	Note 7: Goodwill and Identifiable Intangible Assets The Company has recorded goodwill and other identifiable intangibles associated with purchase business combinations. Goodwill is not amortized, but is periodically evaluated for impairment. The Company did not recognize impairment during the three and six months ended June 30, 2015 and year ended December 31, 2014. Identifiable intangibles are amortized to their estimated residual values over their expected useful lives. Such lives and residual values are also periodically reassessed to determine if any amortization period adjustments are indicated. During the six months ended June 30, 2015 and year ended December 31, 2014, no such adjustments were recorded. The carrying values of goodwill were: At June 30, At December 31, 2015 2014 (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At June 30, 2015 At December 31, 2014 Gross Accumulated Amortization Gross Accumulated Amortization (In thousands) Core Deposit Intangibles $ 56,808 $ (45,008 ) $ 56,808 $ (43,188 ) Merchant Draft Processing Intangible 10,300 (9,769 ) 10,300 (9,633 ) Total Identifiable Intangible Assets $ 67,108 $ (54,777 ) $ 67,108 $ (52,821 ) As of June 30, 2015, the current year and estimated future amortization expense for identifiable intangible assets was: Core Merchant Total (In thousands) Six months ended June 30, 2015 (actual) $ 1,820 $ 136 $ 1,956 Estimate for year ended December 31, 2015 3,594 262 3,856 2016 3,292 212 3,504 2017 2,913 164 3,077 2018 1,892 29 1,921 2019 538 - 538 2020 287 - 287

Note 8 - Deposits and Borrowed

Note 8 - Deposits and Borrowed Funds	6 Months Ended
	Jun. 30, 2015
Deposits And Borrowed Funds [Abstract]
Deposits And Borrowed Funds [Text Block]	Note 8: Deposits and Borrowed Funds The following table provides additional detail regarding deposits. Deposits At June 30, 2015 At December 31, 2014 (In thousands) Noninterest-bearing $ 1,930,551 $ 1,910,781 Interest-bearing: Transaction 795,793 792,448 Savings 1,287,859 1,260,819 Time deposits less than $100 thousand 160,953 169,959 Time deposits $100 thousand through $250 thousand 106,183 113,023 Time deposits more than $250 thousand 73,505 102,161 Total deposits $ 4,354,844 $ 4,349,191 Demand deposit overdrafts of $ 3,271 182 379 The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) At June 30, 2015 At December 31, 2014 Remaining Contractual Maturity of the Agreements Overnight and Continuous Overnight and Continuous Repurchase agreements: (In thousands) Securities of U.S. Government sponsored entities $ 90,336 $ 80,827 Obligations of states and political subdivisions 4,915 14,251 Corporate securities 54,766 52,936 Total collateral carrying value $ 150,017 $ 148,014 Total short-term borrowed funds $ 82,747 $ 89,784 FHLB advances matured and were repaid in full in January 2015. At December 31, 2014, FHLB advances with a carrying value of $20,015 thousand were secured by residential real estate loans and securities of approximately $26,484 thousand. The Company has a $35,000 thousand unsecured line of credit which had no outstanding balance at June 30, 2015 and December 31, 2014. The line of credit has a variable interest rate, which was 2.0

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Note 9: Fair Value Measurements The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Available for sale investment securities are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as other real estate owned, impaired loans, certain loans held for investment, investment securities held to maturity, and other assets. These nonrecurring fair value adjustments typically involve the lower-of-cost-or-fair value accounting of individual assets. In accordance with the Fair Value Measurement and Disclosure topic of the Codification, the Company bases its fair values on the price that would be received to sell an asset or paid to transfer a liability in the principal market or most advantageous market for an asset or liability in an orderly transaction between market participants on the measurement date under current market conditions. A fair value measurement reflects all of the assumptions that market participants would use in pricing the asset or liability, including assumptions about the risk inherent in a particular valuation technique, the effect of a restriction on the sale or use of an asset, and the risk of nonperformance. The Company groups its assets and liabilities measured at fair value into a three-level hierarchy, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. When the valuation assumptions used to measure the fair value of the asset or liability are categorized within different levels of the fair value hierarchy, the asset or liability is categorized in its entirety within the lowest level of the hierarchy. These levels are: Level 1 – Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange. Level 1 includes U.S. Treasury and equity securities, which are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities. Level 2 – Valuation is based upon quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market. Level 2 includes federal agency securities, mortgage-backed securities, corporate securities, asset-backed securities, municipal bonds and residential collateralized mortgage obligations. Level 3 – Valuation is generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect the Company’s estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques. The Company relies on independent vendor pricing services to measure fair value for investment securities available for sale and investment securities held to maturity. The Company employs three pricing services. To validate the pricing of these vendors, the Company compares vendors’ pricing for each of the securities for consistency; significant pricing differences, if any, are evaluated using all available independent quotes with the quote closely affecting the market is generally used as the fair value estimate. In addition, the Company conducts “other than temporary impairment (OTTI)” analysis on a quarterly basis; securities selected for OTTI analysis include all securities at a market price below 95 percent of par value and with a market to book ratio below 95:100. As with any valuation technique used to estimate fair value, changes in underlying assumptions used could significantly affect the results of current and future values. Accordingly, these fair value estimates may not be realized in an actual sale of the securities. The Company regularly reviews the valuation techniques and assumptions used by its vendors and determines which valuation techniques are utilized based on observable market inputs for the type of securities being measured. The Company uses the information to determine the placement in the fair value hierarchy as level 1, 2 or 3. When the Company changes its valuation assumptions for measuring financial assets and financial liabilities at fair value, either due to changes in current market conditions or other factors, or reevaluates the valuation techniques and assumptions used by its vendors, it may need to transfer those assets or liabilities to another level in the hierarchy based on the new information. The Company recognizes these transfers at the end of the reporting period that the transfers occur. During the six months ended June 30, 2015, the Company reevaluated the valuation techniques and assumptions used by its vendors in valuing the Company’s available for sale securities, and based on the evaluation, transferred $437,715 thousand out of level 1 and transferred $437,715 thousand into level 2. There were no transfers into level 1 or into or out of level 3. For the year ended December 31, 2014, there were no transfers into or out of levels 1, 2 or 3. Assets Recorded at Fair Value on a Recurring Basis The table below presents assets measured at fair value on a recurring basis. At June 30, 2015 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) U.S. Treasury securities $ 3,503 $ 3,503 $ - $ - Securities of U.S. Government sponsored entities 431,936 - 431,936 - Residential mortgage-backed securities 22,415 - 22,415 - Commercial mortgage-backed securities 2,632 - 2,632 - Obligations of states and political subdivisions 168,252 - 168,252 - Residential collateralized mortgage obligations 202,750 - 202,750 - Asset-backed securities 2,659 - 2,659 - FHLMC and FNMA stock 5,789 10 5,779 - Corporate securities 792,121 - 792,121 - Other securities 2,821 963 1,858 - Total securities available for sale $ 1,634,878 $ 4,476 $ 1,630,402 $ - At December 31, 2014 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) U.S. Treasury securities $ 3,505 $ 3,505 $ - $ - Securities of U.S. Government sponsored entities 635,188 635,188 - - Residential mortgage-backed securities 26,407 - 26,407 - Commercial mortgage-backed securities 2,919 - 2,919 - Obligations of states and political subdivisions 181,799 - 181,799 - Residential collateralized mortgage obligations 222,457 - 222,457 - Asset-backed securities 8,313 - 8,313 - FHLMC and FNMA stock 5,168 5,168 - - Corporate securities 512,239 - 512,239 - Other securities 2,786 910 1,876 - Total securities available for sale $ 1,600,781 $ 644,771 $ 956,010 $ - Assets Recorded at Fair Value on a Nonrecurring Basis The Company may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from application of lower-of-cost or fair-value accounting of individual assets. For assets measured at fair value on a nonrecurring basis that were recorded in the balance sheet at June 30, 2015 and December 31, 2014, the following table provides the level of valuation assumptions used to determine each adjustment and the carrying value of the related assets at period end. For the Six Months Ended At June 30, 2015 June 30, 2015 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,260 $ - $ - $ 9,260 $ (243 ) Impaired loans 17,732 - - 17,732 - Total assets measured at fair value on a nonrecurring basis $ 26,992 $ - $ - $ 26,992 $ (243 ) Level 3 – Valuation is based upon independent market prices, estimated liquidation values of loan collateral or appraised value of the collateral as determined by third-party independent appraisers, less 10% for selling costs, generally. Level 3 includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and impaired loans collateralized by real property and other business asset collateral where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. The unobservable inputs and qualitative information about the unobservable inputs are not presented due to the unavailability from third party evaluators. For the Year Ended At December 31, 2014 December 31, 2014 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 6,374 $ - $ 6,374 $ - $ (358 ) Impaired loans 17,085 - 7,670 9,415 (884 ) Total assets measured at fair value on a nonrecurring basis $ 23,459 $ - $ 14,044 $ 9,415 $ (1,242 ) Level 2 – Valuation is based upon independent market prices or appraised value of the collateral, less 10% for selling costs, generally. Level 2 includes other real estate owned that has been measured at fair value upon transfer to foreclosed assets and impaired loans collateralized by real property where a specific reserve has been established or a chargeoff has been recorded. Losses on other real estate owned represent losses recognized in earnings during the period subsequent to its initial classification as foreclosed assets. Level 3 – Valuation is based upon estimated liquidation values of loan collateral. The value of level 3 assets can also include a component of real estate, which is valued as described for level 2 inputs, when collateral for the impaired loan includes both business assets and real estate. Level 3 includes impaired loans where a specific reserve has been established or a chargeoff has been recorded. 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 Loans 30,828 197 7,780 Deposit Liabilities Short-Term Borrowed Funds Federal Home Loan Bank Advances 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 be realized for assets or paid to settle liabilities. In addition, these values do not give effect to adjustments to fair value which may occur when financial instruments are sold or settled in larger quantities. The carrying amounts in the following table are recorded in the balance sheet under the indicated captions. The Company has not included assets and liabilities that are not financial instruments, such as goodwill, long-term relationships with deposit, merchant processing and trust customers, other purchased intangibles, premises and equipment, deferred taxes and other assets and liabilities. The total estimated fair values do not represent, and should not be construed to represent, the underlying value of the Company. At June 30, 2015 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 289,606 $ 289,606 $ 289,606 $ - $ - Investment securities held to maturity 1,159,581 1,164,603 - 1,164,603 - Loans 1,600,443 1,613,443 - - 1,613,443 Financial Liabilities: Deposits $ 4,354,844 $ 4,354,172 $ - $ 4,014,203 $ 339,969 Short-term borrowed funds 82,747 82,747 - 82,747 - At December 31, 2014 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 380,836 $ 380,836 $ 380,836 $ - $ - Investment securities held to maturity 1,038,658 1,048,562 1,077 1,047,485 - Loans 1,668,805 1,685,048 - - 1,685,048 Financial Liabilities: Deposits $ 4,349,191 $ 4,348,958 $ - $ 3,964,048 $ 384,910 Short-term borrowed funds 89,784 89,784 - 89,784 - Federal Home Loan Bank advances 20,015 20,014 20,014 - - - The majority of the Company’s standby letters of credit and other commitments to extend credit carry current market interest rates if converted to loans. No premium or discount was ascribed to these commitments because virtually all funding would be at current market rates.

Note 10 - Commitments and Conti

Note 10 - Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	Note 10: Commitments and Contingent Liabilities Loan commitments are agreements to lend to a customer provided there is no violation of any condition established in the agreement. 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 $ 304,499 26,969 40 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 is reasonably estimable.

Note 11 - Earnings Per Common S

Note 11 - Earnings Per Common Share	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Note 11: Earnings Per Common Share The table below shows earnings per common share and diluted earnings per common share. Basic earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period. Diluted earnings per common share are computed by dividing net income by the average number of common shares outstanding during the period plus the impact of common stock equivalents. For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 14,761 $ 15,157 $ 29,318 $ 30,464 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,514 26,175 25,582 26,303 Basic earnings per common share $ 0.58 $ 0.58 $ 1.15 $ 1.16 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,514 26,175 25,582 26,303 Add common stock equivalents for options 22 63 13 84 Weighted average number of common shares outstanding - diluted (denominator) 25,536 26,238 25,595 26,387 Diluted earnings per common share $ 0.58 $ 0.58 $ 1.15 $ 1.15 For the three and six months ended June 30, 2015, options to purchase 1,376 1,575 For the three and six months ended June 30, 2014, options to purchase 1,050 929

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Standards FASB ASU 2014-01 Investments- Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects The update also requires a reporting entity to disclose information regarding its investments in qualified affordable housing projects, and the effect of the measurement of its investments in qualified affordable housing projects and the related tax credits on its financial position and results of operations. The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at January 1, 2015, the date adopted. FASB ASU 2014-04, Re - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure, The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at January 1, 2015, the date adopted. FASB ASU 2014-11 Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures, . The adoption of the update was limited to additional disclosures only and did not have a material effect on the Company’s financial statements at April 1, 2015, the date adopted.

Note 3 - Investment Securities

Note 3 - Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Investment Securities Available for Sale Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value (In thousands) U.S. Treasury securities $ 3,500 $ 3 $ - $ 3,503 Securities of U.S. Government sponsored entities 431,800 675 (539 ) 431,936 Residential mortgage-backed securities 20,955 1,468 (8 ) 22,415 Commercial mortgage-backed securities 2,638 4 (10 ) 2,632 Obligations of states and political subdivisions 159,738 8,670 (156 ) 168,252 Residential collateralized mortgage obligations 209,448 537 (7,235 ) 202,750 Asset-backed securities 2,672 - (13 ) 2,659 FHLMC 1 2 775 5,014 - 5,789 Corporate securities 794,276 1,829 (3,984 ) 792,121 Other securities 2,039 924 (142 ) 2,821 Total $ 1,627,841 $ 19,124 $ (12,087 ) $ 1,634,878 Investment Securities Available for Sale Amortized Cost Gross Gross Fair Value (In thousands) U.S. Treasury securities $ 3,500 $ 5 $ - $ 3,505 Securities of U.S. Government sponsored entities 635,278 937 (1,027 ) 635,188 Residential mortgage-backed securities 24,647 1,776 (16 ) 26,407 Commercial mortgage-backed securities 2,923 6 (10 ) 2,919 Obligations of states and political subdivisions 171,907 10,015 (123 ) 181,799 Residential collateralized mortgage obligations 230,347 634 (8,524 ) 222,457 Asset-backed securities 8,349 - (36 ) 8,313 FHLMC 1 2 775 4,393 - 5,168 Corporate securities 511,699 2,169 (1,629 ) 512,239 Other securities 2,039 871 (124 ) 2,786 Total $ 1,591,464 $ 20,806 $ (11,489 ) $ 1,600,781
Schedule of Held to Maturity Securities Reconciliation [Table Text Block]	Investment Securities Held to Maturity Amortized Cost Gross Gross Fair Value (In thousands) Securities of U.S. government sponsored entities $ 912 $ 7 $ - $ 919 Residential mortgage-backed securities 220,364 949 (775 ) 220,538 Commercial mortgage-backed securities 16,498 43 (148 ) 16,393 Obligations of states and political subdivisions 692,585 8,629 (3,720 ) 697,494 Residential collateralized mortgage obligations 229,222 1,880 (1,843 ) 229,259 Total $ 1,159,581 $ 11,508 $ (6,486 ) $ 1,164,603 Investment Securities Held to Maturity Amortized Cost Gross Gross Fair Value (In thousands) Securities of U.S. government sponsored entities $ 1,066 $ 11 $ - $ 1,077 Residential mortgage-backed securities 59,078 1,183 (137 ) 60,124 Obligations of states and political subdivisions 720,189 11,350 (2,358 ) 729,181 Residential collateralized mortgage obligations 258,325 2,236 (2,381 ) 258,180 Total $ 1,038,658 $ 14,780 $ (4,876 ) $ 1,048,562
Investments Classified by Contractual Maturity Date [Table Text Block]	At June 30, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 99,091 $ 99,319 $ 13,500 $ 14,053 Over 1 to 5 years 1,095,152 1,094,069 239,801 241,670 Over 5 to 10 years 155,190 159,881 266,989 269,180 Over 10 years 42,553 45,202 173,207 173,510 Subtotal 1,391,986 1,398,471 693,497 698,413 Mortgage-backed securities and residential collateralized mortgage obligations 233,041 227,797 466,084 466,190 Other securities 2,814 8,610 - - Total $ 1,627,841 $ 1,634,878 $ 1,159,581 $ 1,164,603 At December 31, 2014 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 57,891 $ 57,991 $ 15,355 $ 15,855 Over 1 to 5 years 629,200 630,797 228,380 230,248 Over 5 to 10 years 584,872 589,250 285,219 288,631 Over 10 years 58,770 63,006 192,301 195,524 Subtotal 1,330,733 1,341,044 721,255 730,258 Mortgage-backed securities and residential collateralized mortgage obligations 257,917 251,783 317,403 318,304 Other securities 2,814 7,954 - - Total $ 1,591,464 $ 1,600,781 $ 1,038,658 $ 1,048,562
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 Fair Unrealized Investment Fair Unrealized Investment Fair Unrealized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Securities of U.S. Government sponsored entities 16 $ 138,060 $ (517 ) 1 $ 9,978 $ (22 ) 17 $ 148,038 $ (539 ) Residential mortgage-backed securities - - - 1 795 (8 ) 1 795 (8 ) Commercial mortgage-backed securities 1 900 (7 ) 1 609 (3 ) 2 1,509 (10 ) Obligations of states and political subdivisions 6 2,826 (41 ) 11 3,824 (115 ) 17 6,650 (156 ) Residential collateralized mortgage obligations 2 14,061 (326 ) 29 174,725 (6,909 ) 31 188,786 (7,235 ) Asset-backed securities - - - 1 2,659 (13 ) 1 2,659 (13 ) Corporate securities 83 405,109 (3,417 ) 13 43,809 (567 ) 96 448,918 (3,984 ) Other securities - - - 1 1,858 (142 ) 1 1,858 (142 ) Total 108 $ 560,956 $ (4,308 ) 58 $ 238,257 $ (7,779 ) 166 $ 799,213 $ (12,087 ) 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) Residential mortgage- backed securities 11 $ 176,217 $ (772 ) 1 $ 128 $ (3 ) 12 $ 176,345 $ (775 ) Commercial mortgage-backed securities 2 14,290 (148 ) - - - 2 14,290 (148 ) Obligations of states and political subdivisions 200 169,949 (1,441 ) 81 69,233 (2,279 ) 281 239,182 (3,720 ) Residential collateralized mortgage obligations 15 58,640 (388 ) 14 79,005 (1,455 ) 29 137,645 (1,843 ) Total 228 $ 419,096 $ (2,749 ) 96 $ 148,366 $ (3,737 ) 324 $ 567,462 $ (6,486 ) Investment Securities Available for Sale No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Unrealized Investment Fair Unrealized Investment Fair Unrealized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Securities of U.S. Government sponsored entities 15 $ 253,632 $ (989 ) 1 $ 9,963 $ (38 ) 16 $ 263,595 $ (1,027 ) Residential mortgage-backed securities - - - 2 822 (16 ) 2 822 (16 ) Commercial mortgage-backed securities 1 942 (7 ) 1 803 (3 ) 2 1,745 (10 ) Obligations of states and political subdivisions 7 2,548 (18 ) 17 5,518 (105 ) 24 8,066 (123 ) Residential collateralized mortgage obligations - - - 32 205,074 (8,524 ) 32 205,074 (8,524 ) Asset-backed securities 1 5,008 (7 ) 1 3,305 (29 ) 2 8,313 (36 ) Corporate securities 53 165,026 (1,304 ) 5 34,222 (325 ) 58 199,248 (1,629 ) Other securities - - - 1 1,876 (124 ) 1 1,876 (124 ) Total 77 $ 427,156 $ (2,325 ) 60 $ 261,583 $ (9,164 ) 137 $ 688,739 $ (11,489 ) Investment Securities Held to Maturity No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Unrecognized Investment Fair Unrecognized Investment Fair Unrecognized Positions Value Losses Positions Value Losses Positions Value Losses ($ in thousands) Residential mortgage-backed securities 4 $ 19,467 $ (132 ) 1 $ 201 $ (5 ) 5 $ 19,668 $ (137 ) Obligations of states and political subdivisions 103 76,202 (439 ) 138 123,370 (1,919 ) 241 199,572 (2,358 ) Residential collateralized mortgage obligations 5 13,932 (166 ) 22 119,513 (2,215 ) 27 133,445 (2,381 ) Total 112 $ 109,601 $ (737 ) 161 $ 243,084 $ (4,139 ) 273 $ 352,685 $ (4,876 )
Interest Income from Investments [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Taxable $ 8,393 $ 5,876 $ 15,946 $ 11,559 Tax-exempt 5,997 6,740 12,131 13,720 Total interest income from investment securities $ 14,390 $ 12,616 $ 28,077 $ 25,279

Note 4 - Loans and Allowance 21

Note 4 - Loans and Allowance for Credit Losses (Tables)	6 Months Ended
	Jun. 30, 2015
Loans And Allowance For Credit Losses [Abstract]
Schedule of Loans Receivable [Table Text Block]	At June 30, 2015 Commercial Commercial Real Estate Construction Residential Real Estate Consumer Total (In thousands) Originated loans $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 1,425,047 Purchased covered loans: Gross purchased covered loans - - - 2,520 12,786 15,306 Purchased loan discount - - - (133 ) (64 ) (197 ) Purchased non-covered loans: Gross purchased non-covered loans 16,292 143,722 995 706 37,180 198,895 Purchased loan discount (1,168 ) (5,089 ) - (262 ) (1,261 ) (7,780 ) Total $ 386,121 $ 687,243 $ 7,757 $ 137,252 $ 412,898 $ 1,631,271 At December 31, 2014 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 1,470,369 Purchased covered loans: Gross purchased covered loans - - - 2,626 14,920 17,546 Purchased loan discount - - - (434 ) (34 ) (468 ) Purchased non-covered loans: Gross purchased non-covered loans 19,166 157,502 2,919 972 41,656 222,215 Purchased loan discount (1,356 ) (6,492 ) (50 ) (262 ) (1,212 ) (9,372 ) Total $ 391,815 $ 718,604 $ 13,872 $ 149,827 $ 426,172 $ 1,700,290
Impaired Purchased Loans Roll Forward [Table Text Block]	For the For the Year Ended Impaired purchased loans (In thousands) Carrying amount at the beginning of the period $ 4,672 $ 4,936 Reductions during the period (32 ) (264 ) Carrying amount at the end of the period $ 4,640 $ 4,672
Accretable Yield Reconciliation Schedule [Table Text Block]	For the For the Accretable yield: (In thousands) Balance at the beginning of the period $ 2,261 $ 2,505 Reclassification from nonaccretable difference 1,365 5,016 Accretion (1,835 ) (5,260 ) Balance at the end of the period $ 1,791 $ 2,261 Accretion $ (1,835 ) $ (5,260 ) Change in FDIC indemnification 230 1,110 (Increase) in interest income $ (1,605 ) $ (4,150 )
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]	Allowance for Loan Losses Commercial Commercial Real Estate Construction Residential Real Estate Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,470 $ 4,123 $ 730 $ 2,140 $ 7,031 $ 2,339 $ - $ 9,354 $ 31,187 Additions: Provision 1,704 758 (327 ) (82 ) 350 (921 ) - (1,482 ) - Deductions: Chargeoffs (401 ) - - - (576 ) (396 ) - - (1,373 ) Recoveries 334 15 - - 443 222 - - 1,014 Net loan (losses) recoveries (67 ) 15 - - (133 ) (174 ) - - (359 ) Total allowance for loan losses $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Allowance for Loan Losses Commercial Commercial Real Estate Construction Residential Real Estate 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 1,594 621 (241 ) (183 ) 69 (674 ) - (1,186 ) - Deductions: Chargeoffs (461 ) - - - (1,571 ) (431 ) - - (2,463 ) Recoveries 514 30 - - 1,033 229 - - 1,806 Net loan recoveries (losses) 53 30 - - (538 ) (202 ) - - (657 ) Total allowance for loan losses $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Allowance for Credit Losses Commercial Commercial Real Estate Construction Residential Real Estate Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 4,243 $ 11,259 $ 445 $ 491 $ 2,813 $ 2,574 $ - $ 10,284 $ 32,109 Additions: Provision 1,085 (610 ) (3 ) (52 ) (75 ) 115 - 540 1,000 Deductions: Chargeoffs (150 ) - - (30 ) (1,301 ) - - - (1,481 ) Recoveries 119 15 - - 618 18 - - 770 Net loan (losses) recoveries (31 ) 15 - (30 ) (683 ) 18 - - (711 ) Balance at end of period 5,297 10,664 442 409 2,055 2,707 - 10,824 32,398 Liability for off-balance sheet credit exposure 1,733 24 165 - 465 243 23 40 2,693 Total allowance for credit losses $ 7,030 $ 10,688 $ 607 $ 409 $ 2,520 $ 2,950 $ 23 $ 10,864 $ 35,091 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 1,215 (1,584 ) (163 ) 34 139 1,387 - 972 2,000 Deductions: Chargeoffs (210 ) - - (30 ) (2,300 ) (260 ) - - (2,800 ) Recoveries 287 178 3 - 1,018 19 - - 1,505 Net loan recoveries (losses) 77 178 3 (30 ) (1,282 ) (241 ) - - (1,295 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 5,297 10,664 442 409 2,055 2,707 - 10,824 32,398 Liability for off-balance sheet credit exposure 1,733 24 165 - 465 243 23 40 2,693 Total allowance for credit losses $ 7,030 $ 10,688 $ 607 $ 409 $ 2,520 $ 2,950 $ 23 $ 10,864 $ 35,091
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 Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans Unallocated Total (In thousands) Allowance for loan losses: Individually evaluated for impairment $ 2,533 $ 1,034 $ - $ - $ - $ - $ - $ - $ 3,567 Collectively evaluated for impairment 4,574 3,862 403 2,058 7,248 1,244 - 7,872 27,261 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Carrying value of loans: Individually evaluated for impairment $ 12,417 $ 5,806 $ - $ - $ - $ 11,712 $ - $ - $ 29,935 Collectively evaluated for impairment 358,580 542,804 6,762 134,421 364,257 174,980 14,892 - 1,596,696 Purchased loans with evidence of credit deterioration - - - - - 4,423 217 - 4,640 Total $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 191,115 $ 15,109 $ - $ 1,631,271 Allowance for Credit Losses and Recorded Investment in Loans Evaluated for Impairment Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans Unallocated Total (In thousands) Allowance for credit losses: Individually evaluated for impairment $ 496 $ - $ - $ - $ - $ - $ - $ - $ 496 Collectively evaluated for impairment 7,372 4,245 988 2,241 8,154 2,120 - 8,562 33,682 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 7,868 $ 4,245 $ 988 $ 2,241 $ 8,154 $ 2,120 $ - $ 8,562 $ 34,178 Carrying value of loans: Individually evaluated for impairment $ 11,811 $ 2,970 $ - $ 574 $ 599 $ 12,364 $ - $ - $ 28,318 Collectively evaluated for impairment 362,194 564,624 11,003 146,351 370,243 196,034 16,851 - 1,667,300 Purchased loans with evidence of credit deterioration - - - - - 4,445 227 - 4,672 Total $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 212,843 $ 17,078 $ - $ 1,700,290
Financing Receivable Credit Quality Indicators [Table Text Block]	Credit Risk Profile by Internally Assigned Grade Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans (1) Total (In thousands) Grade: Pass $ 354,025 $ 518,410 $ 6,762 $ 132,116 $ 363,193 $ 161,919 $ 13,621 $ 1,550,046 Substandard 16,961 30,200 - 2,305 812 36,902 1,685 88,865 Doubtful 11 - - - 9 74 - 94 Loss - - - - 243 - - 243 Purchased loan discount - - - - - (7,780 ) (197 ) (7,977 ) Total $ 370,997 $ 548,610 $ 6,762 $ 134,421 $ 364,257 $ 191,115 $ 15,109 $ 1,631,271 Credit Risk Profile by Internally Assigned Grade Commercial Commercial Real Estate Construction Residential Real Estate Consumer Installment and Other Purchased Non-covered Loans Purchased Covered Loans (1) Total (In thousands) Grade: Pass $ 366,487 $ 527,980 $ 11,003 $ 144,902 $ 369,618 $ 182,644 $ 15,509 $ 1,618,143 Substandard 7,506 39,614 - 2,023 734 39,473 2,037 91,387 Doubtful 12 - - - 12 77 - 101 Loss - - - - 478 21 - 499 Purchased loan discount - - - - - (9,372 ) (468 ) (9,840 ) Total $ 374,005 $ 567,594 $ 11,003 $ 146,925 $ 370,842 $ 212,843 $ 17,078 $ 1,700,290
Past Due Financing Receivables [Table Text Block]	Summary of Loans by Delinquency and Nonaccrual Status Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 367,250 $ 3,053 $ 533 $ - $ 161 $ 370,997 Commercial real estate 534,629 6,554 1,308 - 6,119 548,610 Construction 6,762 - - - - 6,762 Residential real estate 132,049 2,044 328 - - 134,421 Consumer installment and other 360,943 2,617 476 221 - 364,257 Total originated loans 1,401,633 14,268 2,645 221 6,280 1,425,047 Purchased non-covered loans 177,690 2,401 1,082 - 9,942 191,115 Purchased covered loans 15,076 30 - - 3 15,109 Total $ 1,594,399 $ 16,699 $ 3,727 $ 221 $ 16,225 $ 1,631,271 Summary of Loans by Delinquency and Nonaccrual Status Current and Accruing 30-59 Days Past Due and Accruing 60-89 Days Past Due and Accruing Past Due 90 days or More and Accruing Nonaccrual Total Loans (In thousands) Commercial $ 372,235 $ 1,704 $ 36 $ - $ 30 $ 374,005 Commercial real estate 557,041 6,500 - - 4,053 567,594 Construction 11,003 - - - - 11,003 Residential real estate 144,021 1,513 817 - 574 146,925 Consumer installment and other 365,753 3,310 625 502 652 370,842 Total originated loans 1,450,053 13,027 1,478 502 5,309 1,470,369 Purchased non-covered loans 196,150 4,204 491 - 11,998 212,843 Purchased covered loans 16,389 389 3 - 297 17,078 Total $ 1,662,592 $ 17,620 $ 1,972 $ 502 $ 17,604 $ 1,700,290
Effect Of Nonaccrual Loans On Interest Income [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 342 $ 276 $ 654 $ 534 Less: Interest income recognized on nonaccrual loans (118 ) (25 ) (324 ) (69 ) Total reduction of interest income $ 224 $ 251 $ 330 $ 465
Impaired Financing Receivables [Table Text Block]	Impaired Loans Recorded Investment Unpaid Related Allowance (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,756 $ 2,821 $ - Commercial real estate 17,161 22,374 - Construction - - - Residential real estate 240 270 - Consumer installment and other 664 711 - Impaired loans with an allowance recorded: Commercial 9,860 9,860 2,533 Commercial real estate 5,109 5,109 1,034 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 12,616 $ 12,681 $ 2,533 Commercial real estate 22,270 27,483 1,034 Construction - - - Residential real estate 240 270 - Consumer installment and other 664 711 - Impaired Loans Recorded Investment Unpaid Related Allowance (In thousands) Impaired loans with no related allowance recorded: Commercial $ 2,031 $ 2,095 $ - Commercial real estate 19,478 25,519 - Construction 1,834 1,884 - Residential real estate 574 574 - Consumer installment and other 1,518 1,628 - Impaired loans with an allowance recorded: Commercial 9,910 9,910 496 Commercial real estate - - - Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 11,941 $ 12,005 $ 496 Commercial real estate 19,478 25,519 - Construction 1,834 1,884 - Residential real estate 574 574 - Consumer installment and other 1,518 1,628 -
Impaired Financing Receivables Supplemental Schedule [Table Text Block]	Impaired Loans For the Three Months Ended June 30, For the Six Months Ended June 30, 2015 2014 2015 2014 Average Recognized Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,564 $ 147 $ 4,437 $ 60 $ 12,395 $ 293 $ 4,639 $ 127 Commercial real estate 19,715 147 19,800 153 19,017 404 19,549 270 Construction - - 2,035 - 459 - 2,147 - Residential real estate 693 8 162 - 776 14 162 - Consumer installment and other 797 7 1,324 7 1,026 13 1,520 15 Total $ 33,769 $ 309 $ 27,758 $ 220 $ 33,673 $ 724 $ 28,017 $ 412
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Troubled Debt Restructurings Number of Contracts Pre-Modification Carrying Value Period-End Carrying Value Period-End (In thousands) Commercial 6 $ 2,813 $ 2,557 $ - Commercial real estate 6 3,975 3,797 - Residential real estate 1 241 237 - Consumer installment and other 1 18 3 - Total 14 $ 7,047 $ 6,594 $ - Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 4 $ 3,299 $ 2,992 $ 262 Commercial real estate 2 2,291 2,326 - Consumer installment and other 1 18 14 - Total 7 $ 5,608 $ 5,332 $ 262

Note 6 - Other Assets (Tables)

Note 6 - Other Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Disclosure Text Block Supplement [Abstract]
Schedule of Other Assets [Table Text Block]	At June 30, At December 31, (In thousands) Cost method equity investments: Federal Reserve Bank stock (1) $ 14,069 $ 14,069 Federal Home Loan Bank stock (2) - 940 Other investments 201 241 Total cost method equity investments 14,270 15,250 Life insurance cash surrender value 47,717 46,479 Net deferred tax asset 50,669 50,903 Limited partnership investments 16,695 18,673 Interest receivable 19,340 19,394 Prepaid assets 5,195 5,609 Other assets 11,627 10,150 Total other assets $ 165,513 $ 166,458
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands) Investment loss included in pre-tax income $ 750 $ 750 $ 1,425 $ 1,450 Tax credits recognized in provision for income taxes 658 771 1,316 1,542

Note 7 - Goodwill and Identif23

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	At June 30, At December 31, 2015 2014 (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At June 30, 2015 At December 31, 2014 Gross Accumulated Amortization Gross Accumulated Amortization (In thousands) Core Deposit Intangibles $ 56,808 $ (45,008 ) $ 56,808 $ (43,188 ) Merchant Draft Processing Intangible 10,300 (9,769 ) 10,300 (9,633 ) Total Identifiable Intangible Assets $ 67,108 $ (54,777 ) $ 67,108 $ (52,821 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Core Merchant Total (In thousands) Six months ended June 30, 2015 (actual) $ 1,820 $ 136 $ 1,956 Estimate for year ended December 31, 2015 3,594 262 3,856 2016 3,292 212 3,504 2017 2,913 164 3,077 2018 1,892 29 1,921 2019 538 - 538 2020 287 - 287

Note 8 - Deposits and Borrowe24

Note 8 - Deposits and Borrowed Funds (Tables)	6 Months Ended
	Jun. 30, 2015
Deposits And Borrowed Funds [Abstract]
Deposits [Table Text Block]	Deposits At June 30, 2015 At December 31, 2014 (In thousands) Noninterest-bearing $ 1,930,551 $ 1,910,781 Interest-bearing: Transaction 795,793 792,448 Savings 1,287,859 1,260,819 Time deposits less than $100 thousand 160,953 169,959 Time deposits $100 thousand through $250 thousand 106,183 113,023 Time deposits more than $250 thousand 73,505 102,161 Total deposits $ 4,354,844 $ 4,349,191
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) At June 30, 2015 At December 31, 2014 Remaining Contractual Maturity of the Agreements Overnight and Continuous Overnight and Continuous Repurchase agreements: (In thousands) Securities of U.S. Government sponsored entities $ 90,336 $ 80,827 Obligations of states and political subdivisions 4,915 14,251 Corporate securities 54,766 52,936 Total collateral carrying value $ 150,017 $ 148,014 Total short-term borrowed funds $ 82,747 $ 89,784

Note 9 - Fair Value Measureme25

Note 9 - Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At June 30, 2015 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) U.S. Treasury securities $ 3,503 $ 3,503 $ - $ - Securities of U.S. Government sponsored entities 431,936 - 431,936 - Residential mortgage-backed securities 22,415 - 22,415 - Commercial mortgage-backed securities 2,632 - 2,632 - Obligations of states and political subdivisions 168,252 - 168,252 - Residential collateralized mortgage obligations 202,750 - 202,750 - Asset-backed securities 2,659 - 2,659 - FHLMC and FNMA stock 5,789 10 5,779 - Corporate securities 792,121 - 792,121 - Other securities 2,821 963 1,858 - Total securities available for sale $ 1,634,878 $ 4,476 $ 1,630,402 $ - At December 31, 2014 Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (In thousands) U.S. Treasury securities $ 3,505 $ 3,505 $ - $ - Securities of U.S. Government sponsored entities 635,188 635,188 - - Residential mortgage-backed securities 26,407 - 26,407 - Commercial mortgage-backed securities 2,919 - 2,919 - Obligations of states and political subdivisions 181,799 - 181,799 - Residential collateralized mortgage obligations 222,457 - 222,457 - Asset-backed securities 8,313 - 8,313 - FHLMC and FNMA stock 5,168 5,168 - - Corporate securities 512,239 - 512,239 - Other securities 2,786 910 1,876 - Total securities available for sale $ 1,600,781 $ 644,771 $ 956,010 $ -
Fair Value Measurements, Nonrecurring [Table Text Block]	For the Six Months Ended At June 30, 2015 June 30, 2015 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,260 $ - $ - $ 9,260 $ (243 ) Impaired loans 17,732 - - 17,732 - Total assets measured at fair value on a nonrecurring basis $ 26,992 $ - $ - $ 26,992 $ (243 ) For the Year Ended At December 31, 2014 December 31, 2014 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 6,374 $ - $ 6,374 $ - $ (358 ) Impaired loans 17,085 - 7,670 9,415 (884 ) Total assets measured at fair value on a nonrecurring basis $ 23,459 $ - $ 14,044 $ 9,415 $ (1,242 )
Fair Value, by Balance Sheet Grouping [Table Text Block]	At June 30, 2015 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 289,606 $ 289,606 $ 289,606 $ - $ - Investment securities held to maturity 1,159,581 1,164,603 - 1,164,603 - Loans 1,600,443 1,613,443 - - 1,613,443 Financial Liabilities: Deposits $ 4,354,844 $ 4,354,172 $ - $ 4,014,203 $ 339,969 Short-term borrowed funds 82,747 82,747 - 82,747 - At December 31, 2014 Carrying Amount Estimated Fair Value Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs Financial Assets: (In thousands) Cash and due from banks $ 380,836 $ 380,836 $ 380,836 $ - $ - Investment securities held to maturity 1,038,658 1,048,562 1,077 1,047,485 - Loans 1,668,805 1,685,048 - - 1,685,048 Financial Liabilities: Deposits $ 4,349,191 $ 4,348,958 $ - $ 3,964,048 $ 384,910 Short-term borrowed funds 89,784 89,784 - 89,784 - Federal Home Loan Bank advances 20,015 20,014 20,014 - - -

Note 11 - Earnings Per Common26

Note 11 - Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Six Months Ended June 30, 2015 2014 2015 2014 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 14,761 $ 15,157 $ 29,318 $ 30,464 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,514 26,175 25,582 26,303 Basic earnings per common share $ 0.58 $ 0.58 $ 1.15 $ 1.16 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,514 26,175 25,582 26,303 Add common stock equivalents for options 22 63 13 84 Weighted average number of common shares outstanding - diluted (denominator) 25,536 26,238 25,595 26,387 Diluted earnings per common share $ 0.58 $ 0.58 $ 1.15 $ 1.15

Note 3 - Investment Securitie27

Note 3 - Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 3 - Investment Securities (Details) [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	$ 1,094,069	$ 630,797
Pledged Financial Instruments, Not Separately Reported, Securities	758,847	$ 757,623
Call Option [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Note 3 - Investment Securities (Details) [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	385,723
Call Option [Member] | US Government-sponsored Enterprises Debt Securities [Member] | Interest Coupons [Member]
Note 3 - Investment Securities (Details) [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	$ 118,469

Note 3 - Investment Securitie28

Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		$ 1,627,841	$ 1,591,464
Gross Unrealized Gains		19,124	20,806
Gross Unrealized Losses		(12,087)	(11,489)
Fair Value		1,634,878	1,600,781
US Treasury Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		3,500	3,500
Gross Unrealized Gains		3	5
Fair Value		3,503	3,505
US Government-sponsored Enterprises Debt Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		431,800	635,278
Gross Unrealized Gains		675	937
Gross Unrealized Losses		(539)	(1,027)
Fair Value		431,936	635,188
Residential Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		20,955	24,647
Gross Unrealized Gains		1,468	1,776
Gross Unrealized Losses		(8)	(16)
Fair Value		22,415	26,407
Commercial Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		2,638	2,923
Gross Unrealized Gains		4	6
Gross Unrealized Losses		(10)	(10)
Fair Value		2,632	2,919
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		159,738	171,907
Gross Unrealized Gains		8,670	10,015
Gross Unrealized Losses		(156)	(123)
Fair Value		168,252	181,799
Residential Collateralized Mortgage Obligations [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		209,448	230,347
Gross Unrealized Gains		537	634
Gross Unrealized Losses		(7,235)	(8,524)
Fair Value		202,750	222,457
Asset-backed Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		2,672	8,349
Gross Unrealized Losses		(13)	(36)
Fair Value		2,659	8,313
FHLMC And FNMA Stock [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost	[1],[2]	775	775
Gross Unrealized Gains	[1],[2]	$ 5,014	$ 4,393
Gross Unrealized Losses	[1],[2]
Fair Value	[1],[2]	$ 5,789	$ 5,168
Domestic Corporate Debt Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		794,276	511,699
Gross Unrealized Gains		1,829	2,169
Gross Unrealized Losses		(3,984)	(1,629)
Fair Value		792,121	512,239
Other Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Fair Value of Available for Sale Investment Securities Portfolio [Line Items]
Amortized Cost		2,039	2,039
Gross Unrealized Gains		924	871
Gross Unrealized Losses		(142)	(124)
Fair Value		$ 2,821	$ 2,786
[1]	Federal Home Loan Mortgage Corporation
[2]	Federal National Mortgage Association

Note 3 - Investment Securitie29

Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	$ 1,159,581	$ 1,038,658
Gross Unrecognized Gains	11,508	14,780
Gross Unrecognized Losses	(6,486)	(4,876)
Estimated Fair Value	1,164,603	1,048,562
US Government-sponsored Enterprises Debt Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	912	1,066
Gross Unrecognized Gains	7	11
Estimated Fair Value	919	1,077
Residential Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	220,364	59,078
Gross Unrecognized Gains	949	1,183
Gross Unrecognized Losses	(775)	(137)
Estimated Fair Value	220,538	60,124
Commercial Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	16,498
Gross Unrecognized Gains	43
Gross Unrecognized Losses	(148)
Estimated Fair Value	16,393
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	692,585	720,189
Gross Unrecognized Gains	8,629	11,350
Gross Unrecognized Losses	(3,720)	(2,358)
Estimated Fair Value	697,494	729,181
Residential Collateralized Mortgage Obligations [Member]
Note 3 - Investment Securities (Details) - Amortized Cost, Unrealized Gains and Losses, and Estimated Market Value of Held to Maturity Investment Securities Portfolio [Line Items]
Amortized Cost	229,222	258,325
Gross Unrecognized Gains	1,880	2,236
Gross Unrecognized Losses	(1,843)	(2,381)
Estimated Fair Value	$ 229,259	$ 258,180

Note 3 - Investment Securitie30

Note 3 - Investment Securities (Details) - Amortized Cost and Estimated Market Value of Securities by Contractual Maturity - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Maturity in years:
Securities Available for Sale, Amortized Cost, 1 year or less	$ 99,091	$ 57,891
Securities Available for Sale, Estimated Market Value, 1 year or less	99,319	57,991
Securities Held to Maturity, Amortized Cost, 1 year or less	13,500	15,355
Securities Held to Maturity, Estimated Market Value, 1 year or less	14,053	15,855
Securities Available for Sale, Amortized Cost, Over 1 to 5 years	1,095,152	629,200
Securities Available for Sale, Estimated Market Value, Over 1 to 5 years	1,094,069	630,797
Securities Held to Maturity, Amortized Cost, Over 1 to 5 years	239,801	228,380
Securities Held to Maturity, Estimated Market Value, Over 1 to 5 years	241,670	230,248
Securities Available for Sale, Amortized Cost, Over 5 to 10 years	155,190	584,872
Securities Available for Sale, Estimated Market Value, Over 5 to 10 years	159,881	589,250
Securities Held to Maturity, Amortized Cost, Over 5 to 10 years	266,989	285,219
Securities Held to Maturity, Estimated Market Value, Over 5 to 10 years	269,180	288,631
Securities Available for Sale, Amortized Cost, Over 10 years	42,553	58,770
Securities Available for Sale, Estimated Market Value, Over 10 years	45,202	63,006
Securities Held to Maturity, Amortized Cost, Over 10 years	173,207	192,301
Securities Held to Maturity, Estimated Market Value, Over 10 years	173,510	195,524
Securities Available for Sale, Amortized Cost, Subtotal	1,391,986	1,330,733
Securities Available for Sale, Estimated Market Value, Subtotal	1,398,471	1,341,044
Securities Held to Maturity, Amortized Cost, Subtotal	693,497	721,255
Securities Held to Maturity, Estimated Market Value, Subtotal	698,413	730,258
Securities Available for Sale, Amortized Cost, Mortgage-backed securities and residential collateralized mortgage obligations	233,041	257,917
Securities Available for Sale, Estimated Market Value, Mortgage-backed securities and residential collateralized mortgage obligations	227,797	251,783
Securities Held to Maturity, Amortized Cost, Mortgage-backed securities and residential collateralized mortgage obligations	466,084	317,403
Securities Held to Maturity, Estimated Market Value, Mortgage-backed securities and residential collateralized mortgage obligations	466,190	318,304
Securities Available for Sale, Amortized Cost, Other securities	2,814	2,814
Securities Available for Sale, Estimated Market Value, Other securities	8,610	7,954
Securities Available for Sale, Amortized Cost, Total	1,627,841	1,591,464
Securities Available for Sale, Estimated Market Value, Total	1,634,878	1,600,781
Securities Held to Maturity, Amortized Cost, Total	1,159,581	1,038,658
Securities Held to Maturity, Estimated Market Value, Total	$ 1,164,603	$ 1,048,562

Note 3 - Investment Securitie31

Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio $ in Thousands	Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	108	77
Available for sale securities, less than 12 months, fair value	$ 560,956	$ 427,156
Available for sale securities, less than 12 months, unrealized losses	$ (4,308)	$ (2,325)
Available for sale securities, 12 months or longer, number of investment positions	58	60
Available for sale securities, 12 months or longer, fair value	$ 238,257	$ 261,583
Available for sale securities, 12 months or longer, unrealized losses	$ (7,779)	$ (9,164)
Available for sale securities, total, number of investment positions	166	137
Available for sale securities, total, fair value	$ 799,213	$ 688,739
Available for sale securities, total, unrealized losses	$ (12,087)	$ (11,489)
Held to Maturity securities, less than 12 months, number of investment positions	228	112
Held to Maturity securities, less than 12 months, fair value	$ 419,096	$ 109,601
Held to Maturity securities, less than 12 months, unrealized losses	$ (2,749)	$ (737)
Held to Maturity securities, 12 months or longer, number of investment positions	96	161
Held to Maturity securities, 12 months or longer, fair value	$ 148,366	$ 243,084
Held to Maturity securities, 12 months or longer, unrealized losses	$ (3,737)	$ (4,139)
Held to Maturity securities, total, number of investment positions	324	273
Held to Maturity securities, total, fair value	$ 567,462	$ 352,685
Held to Maturity securities, total, unrealized losses	$ (6,486)	$ (4,876)
US Government-sponsored Enterprises Debt Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	16	15
Available for sale securities, less than 12 months, fair value	$ 138,060	$ 253,632
Available for sale securities, less than 12 months, unrealized losses	$ (517)	$ (989)
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 9,978	$ 9,963
Available for sale securities, 12 months or longer, unrealized losses	$ (22)	$ (38)
Available for sale securities, total, number of investment positions	17	16
Available for sale securities, total, fair value	$ 148,038	$ 263,595
Available for sale securities, total, unrealized losses	$ (539)	$ (1,027)
Residential Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, 12 months or longer, number of investment positions	1	2
Available for sale securities, 12 months or longer, fair value	$ 795	$ 822
Available for sale securities, 12 months or longer, unrealized losses	$ (8)	$ (16)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 795	$ 822
Available for sale securities, total, unrealized losses	$ (8)	$ (16)
Held to Maturity securities, less than 12 months, number of investment positions	11	4
Held to Maturity securities, less than 12 months, fair value	$ 176,217	$ 19,467
Held to Maturity securities, less than 12 months, unrealized losses	$ (772)	$ (132)
Held to Maturity securities, 12 months or longer, number of investment positions	1	1
Held to Maturity securities, 12 months or longer, fair value	$ 128	$ 201
Held to Maturity securities, 12 months or longer, unrealized losses	$ (3)	$ (5)
Held to Maturity securities, total, number of investment positions	12	5
Held to Maturity securities, total, fair value	$ 176,345	$ 19,668
Held to Maturity securities, total, unrealized losses	$ (775)	$ (137)
Commercial Mortgage Backed Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	1	1
Available for sale securities, less than 12 months, fair value	$ 900	$ 942
Available for sale securities, less than 12 months, unrealized losses	$ (7)	$ (7)
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 609	$ 803
Available for sale securities, 12 months or longer, unrealized losses	$ (3)	$ (3)
Available for sale securities, total, number of investment positions	2	2
Available for sale securities, total, fair value	$ 1,509	$ 1,745
Available for sale securities, total, unrealized losses	$ (10)	$ (10)
Held to Maturity securities, less than 12 months, number of investment positions	2
Held to Maturity securities, less than 12 months, fair value	$ 14,290
Held to Maturity securities, less than 12 months, unrealized losses	$ (148)
Held to Maturity securities, total, number of investment positions	2
Held to Maturity securities, total, fair value	$ 14,290
Held to Maturity securities, total, unrealized losses	$ (148)
US States and Political Subdivisions Debt Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	6	7
Available for sale securities, less than 12 months, fair value	$ 2,826	$ 2,548
Available for sale securities, less than 12 months, unrealized losses	$ (41)	$ (18)
Available for sale securities, 12 months or longer, number of investment positions	11	17
Available for sale securities, 12 months or longer, fair value	$ 3,824	$ 5,518
Available for sale securities, 12 months or longer, unrealized losses	$ (115)	$ (105)
Available for sale securities, total, number of investment positions	17	24
Available for sale securities, total, fair value	$ 6,650	$ 8,066
Available for sale securities, total, unrealized losses	$ (156)	$ (123)
Held to Maturity securities, less than 12 months, number of investment positions	200	103
Held to Maturity securities, less than 12 months, fair value	$ 169,949	$ 76,202
Held to Maturity securities, less than 12 months, unrealized losses	$ (1,441)	$ (439)
Held to Maturity securities, 12 months or longer, number of investment positions	81	138
Held to Maturity securities, 12 months or longer, fair value	$ 69,233	$ 123,370
Held to Maturity securities, 12 months or longer, unrealized losses	$ (2,279)	$ (1,919)
Held to Maturity securities, total, number of investment positions	281	241
Held to Maturity securities, total, fair value	$ 239,182	$ 199,572
Held to Maturity securities, total, unrealized losses	$ (3,720)	$ (2,358)
Residential Collateralized Mortgage Obligations [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	2
Available for sale securities, less than 12 months, fair value	$ 14,061
Available for sale securities, less than 12 months, unrealized losses	$ (326)
Available for sale securities, 12 months or longer, number of investment positions	29	32
Available for sale securities, 12 months or longer, fair value	$ 174,725	$ 205,074
Available for sale securities, 12 months or longer, unrealized losses	$ (6,909)	$ (8,524)
Available for sale securities, total, number of investment positions	31	32
Available for sale securities, total, fair value	$ 188,786	$ 205,074
Available for sale securities, total, unrealized losses	$ (7,235)	$ (8,524)
Held to Maturity securities, less than 12 months, number of investment positions	15	5
Held to Maturity securities, less than 12 months, fair value	$ 58,640	$ 13,932
Held to Maturity securities, less than 12 months, unrealized losses	$ (388)	$ (166)
Held to Maturity securities, 12 months or longer, number of investment positions	14	22
Held to Maturity securities, 12 months or longer, fair value	$ 79,005	$ 119,513
Held to Maturity securities, 12 months or longer, unrealized losses	$ (1,455)	$ (2,215)
Held to Maturity securities, total, number of investment positions	29	27
Held to Maturity securities, total, fair value	$ 137,645	$ 133,445
Held to Maturity securities, total, unrealized losses	$ (1,843)	$ (2,381)
Asset-backed Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions		1
Available for sale securities, less than 12 months, fair value		$ 5,008
Available for sale securities, less than 12 months, unrealized losses		$ (7)
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 2,659	$ 3,305
Available for sale securities, 12 months or longer, unrealized losses	$ (13)	$ (29)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 2,659	$ 8,313
Available for sale securities, total, unrealized losses	$ (13)	$ (36)
Domestic Corporate Debt Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, less than 12 months, number of investment positions	83	53
Available for sale securities, less than 12 months, fair value	$ 405,109	$ 165,026
Available for sale securities, less than 12 months, unrealized losses	$ (3,417)	$ (1,304)
Available for sale securities, 12 months or longer, number of investment positions	13	5
Available for sale securities, 12 months or longer, fair value	$ 43,809	$ 34,222
Available for sale securities, 12 months or longer, unrealized losses	$ (567)	$ (325)
Available for sale securities, total, number of investment positions	96	58
Available for sale securities, total, fair value	$ 448,918	$ 199,248
Available for sale securities, total, unrealized losses	$ (3,984)	$ (1,629)
Other Securities [Member]
Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio [Line Items]
Available for sale securities, 12 months or longer, number of investment positions	1	1
Available for sale securities, 12 months or longer, fair value	$ 1,858	$ 1,876
Available for sale securities, 12 months or longer, unrealized losses	$ (142)	$ (124)
Available for sale securities, total, number of investment positions	1	1
Available for sale securities, total, fair value	$ 1,858	$ 1,876
Available for sale securities, total, unrealized losses	$ (142)	$ (124)

Note 3 - Investment Securitie32

Note 3 - Investment Securities (Details) - Interest Income from Investment Securities - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Income from Investment Securities [Abstract]
Taxable	$ 8,393	$ 5,876	$ 15,946	$ 11,559
Tax-exempt	5,997	6,740	12,131	13,720
Total interest income from investment securities	$ 14,390	$ 12,616	$ 28,077	$ 25,279

Note 4 - Loans and Allowance 33

Note 4 - Loans and Allowance for Credit Losses (Details)	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2015USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		$ 6,594,000	$ 5,332,000	$ 6,594,000	$ 5,332,000
Troubled Debt Restructurings During Period		1	1	6	2
Financing Receivable, Modifications, Subsequent Default, Number of Contracts		0	0	0	0
Payments for Federal Home Loan Bank Advances	$ 20,015,000
Long-term Federal Home Loan Bank Advances						$ 20,015,000
Restricted Pledged Loans						18,366,000
Loans Receivable Held-for-sale, Amount		$ 0		$ 0		0
Other Real Estate, Foreclosed Assets, and Repossessed Assets		9,260,000	$ 8,543,000	9,260,000	$ 8,543,000	6,374,000
Mortgage Loans in Process of Foreclosure, Amount		0	705,000	0	705,000
Restructured Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		6,594,000		6,594,000		4,837,000
Impaired Loans, Restructured, Nonaccrual Status		0		0		$ 0
One Loan [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		100,000	98,000	100,000	98,000
Six Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		1,830,000		1,830,000
Two Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment			115,000		115,000
Residential Real Estate Included in OREO [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Real Estate Acquired Through Foreclosure		$ 486,000	$ 585,000	$ 486,000	$ 585,000

Note 4 - Loans and Allowance 34

Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	$ 1,425,047	$ 1,470,369
Purchased covered loans:
Gross purchased covered loans	15,306	17,546
Credit risk discount, covered loans	(197)	(468)
Purchased non-covered loans:
Gross purchased non-covered loans	198,895	222,215
Credit risk discount, non-covered loans	(7,780)	(9,372)
Total	1,631,271	1,700,290
Commercial Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	370,997	374,005
Purchased non-covered loans:
Gross purchased non-covered loans	16,292	19,166
Credit risk discount, non-covered loans	(1,168)	(1,356)
Total	386,121	391,815
Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	548,610	567,594
Purchased non-covered loans:
Gross purchased non-covered loans	143,722	157,502
Credit risk discount, non-covered loans	(5,089)	(6,492)
Total	687,243	718,604
Construction Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	6,762	11,003
Purchased non-covered loans:
Gross purchased non-covered loans	995	2,919
Credit risk discount, non-covered loans		(50)
Total	7,757	13,872
Residential Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	134,421	146,925
Purchased covered loans:
Gross purchased covered loans	2,520	2,626
Credit risk discount, covered loans	(133)	(434)
Purchased non-covered loans:
Gross purchased non-covered loans	706	972
Credit risk discount, non-covered loans	(262)	(262)
Total	137,252	149,827
Consumer Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans Receivable at Carrying Amount [Line Items]
Originated loans	364,257	370,842
Purchased covered loans:
Gross purchased covered loans	12,786	14,920
Credit risk discount, covered loans	(64)	(34)
Purchased non-covered loans:
Gross purchased non-covered loans	37,180	41,656
Credit risk discount, non-covered loans	(1,261)	(1,212)
Total	$ 412,898	$ 426,172

Note 4 - Loans and Allowance 35

Note 4 - Loans and Allowance for Credit Losses (Details) - Changes in the Carrying Amount of Impaired Purchased Loans - Receivables Acquired with Deteriorated Credit Quality [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Note 4 - Loans and Allowance for Credit Losses (Details) - Changes in the Carrying Amount of Impaired Purchased Loans [Line Items]
Carrying amount at the beginning of the period	$ 4,672	$ 4,936
Reductions during the period	(32)	(264)
Carrying amount at the end of the period	$ 4,640	$ 4,672

Note 4 - Loans and Allowance 36

Note 4 - Loans and Allowance for Credit Losses (Details) - Changes in the Accretable Yield for Purchased Loans - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Changes in the Accretable Yield for Purchased Loans [Abstract]
Balance at the beginning of the period	$ 2,261	$ 2,505
Reclassification from nonaccretable difference	1,365	5,016
Accretion	(1,835)	(5,260)
Change in FDIC indemnification	230	1,110
(Increase) in interest income	(1,605)	(4,150)
Balance at the end of the period	$ 1,791	$ 2,261

Note 4 - Loans and Allowance 37

Note 4 - Loans and Allowance for Credit Losses (Details) - Allowance for Credit Losses - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Allowance for loan losses:
Balance at beginning of period	$ 31,187	$ 32,109	$ 31,485	$ 31,693
Additions:
Provision	0	1,000	0	2,000
Deductions:
Chargeoffs	(1,373)	(1,481)	(2,463)	(2,800)
Recoveries	1,014	770	1,806	1,505
Net loan recoveries (losses)	(359)	(711)	(657)	(1,295)
Indemnification expiration				0
Balance at end of period	31,187	32,109	31,485	31,693	$ 30,828	$ 32,398
Liability for off-balance sheet credit exposure						2,693
Total allowance for loan losses	30,828	35,091	30,828	35,091
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	5,470	4,243	5,460	4,005
Additions:
Provision	1,704	1,085	1,594	1,215
Deductions:
Chargeoffs	(401)	(150)	(461)	(210)
Recoveries	334	119	514	287
Net loan recoveries (losses)	(67)	(31)	53	77
Indemnification expiration				0
Balance at end of period	5,470	4,243	5,460	4,005		5,297
Liability for off-balance sheet credit exposure						1,733
Total allowance for loan losses	7,107	7,030	7,107	7,030
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	4,123	11,259	4,245	12,070
Additions:
Provision	758	(610)	621	(1,584)
Deductions:
Chargeoffs	0	0	0	0
Recoveries	15	15	30	178
Net loan recoveries (losses)	15	15	30	178
Indemnification expiration				0
Balance at end of period	4,123	11,259	4,245	12,070		10,664
Liability for off-balance sheet credit exposure						24
Total allowance for loan losses	4,896	10,688	4,896	10,688
Originated Loans [Member] | Construction Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	730	445	644	602
Additions:
Provision	(327)	(3)	(241)	(163)
Deductions:
Chargeoffs	0	0	0	0
Recoveries	0	0	0	3
Net loan recoveries (losses)	0	0	0	3
Indemnification expiration				0
Balance at end of period	730	445	644	602		442
Liability for off-balance sheet credit exposure						165
Total allowance for loan losses	403	607	403	607
Originated Loans [Member] | Residential Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	2,140	491	2,241	405
Additions:
Provision	(82)	(52)	(183)	34
Deductions:
Chargeoffs	0	(30)	0	(30)
Recoveries	0	0	0	0
Net loan recoveries (losses)	0	(30)	0	(30)
Indemnification expiration				0
Balance at end of period	2,140	491	2,241	405		409
Liability for off-balance sheet credit exposure						0
Total allowance for loan losses	2,058	409	2,058	409
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	7,031	2,813	7,717	3,198
Additions:
Provision	350	(75)	69	139
Deductions:
Chargeoffs	(576)	(1,301)	(1,571)	(2,300)
Recoveries	443	618	1,033	1,018
Net loan recoveries (losses)	(133)	(683)	(538)	(1,282)
Indemnification expiration				0
Balance at end of period	7,031	2,813	7,717	3,198		2,055
Liability for off-balance sheet credit exposure						465
Total allowance for loan losses	7,248	2,520	7,248	2,520
Purchased Non-Covered Loans [Member]
Allowance for loan losses:
Balance at beginning of period	2,339	2,574	2,120	0
Additions:
Provision	(921)	115	(674)	1,387
Deductions:
Chargeoffs	(396)	0	(431)	(260)
Recoveries	222	18	229	19
Net loan recoveries (losses)	(174)	18	(202)	(241)
Indemnification expiration				1,561
Balance at end of period	2,339	2,574	2,120	0		2,707
Liability for off-balance sheet credit exposure						243
Total allowance for loan losses	1,244	2,950	1,244	2,950
Purchased Covered Loans [Member]
Allowance for loan losses:
Balance at beginning of period	0	0	0	1,561
Additions:
Provision	0	0	0	0
Deductions:
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Net loan recoveries (losses)	0	0	0	0
Indemnification expiration				(1,561)
Balance at end of period	0	0	0	1,561		0
Liability for off-balance sheet credit exposure						23
Total allowance for loan losses	0	23	0	23
Unallocated Financing Receivable [Member]
Allowance for loan losses:
Balance at beginning of period	9,354	10,284	9,058	9,852
Additions:
Provision	(1,482)	540	(1,186)	972
Deductions:
Chargeoffs	0	0	0	0
Recoveries	0	0	0	0
Net loan recoveries (losses)	0	0	0	0
Indemnification expiration				0
Balance at end of period	9,354	10,284	9,058	9,852		10,824
Liability for off-balance sheet credit exposure						$ 40
Total allowance for loan losses	$ 7,872	$ 10,864	$ 7,872	$ 10,864

Note 4 - Loans and Allowance 38

Note 4 - Loans and Allowance for Credit Losses (Details) - Recorded Investment in Loans Evaluated for Impairment - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Allowance for loan losses:
Individually evaluated for impairment		$ 3,567	$ 496
Collectively evaluated for impairment		27,261	33,682
Total		30,828	34,178	$ 35,091
Carrying value of loans:
Individually evaluated for impairment		29,935	28,318
Collectively evaluated for impairment		1,596,696	1,667,300
Total		1,631,271	1,700,290
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		4,640	4,672
Originated Loans [Member]
Carrying value of loans:
Total		1,425,047	1,470,369
Purchased Non-Covered Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		1,244	2,120
Total		1,244	2,120	2,950
Carrying value of loans:
Individually evaluated for impairment		11,712	12,364
Collectively evaluated for impairment		174,980	196,034
Total		191,115	212,843
Purchased Non-Covered Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		4,423	4,445
Purchased Covered Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		0	0
Total		0	0	23
Carrying value of loans:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		14,892	16,851
Total	[1]	15,109	17,078
Purchased Covered Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		217	227
Unallocated Financing Receivable [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		7,872	8,562
Total		7,872	8,562	10,864
Carrying value of loans:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		0	0
Total		0	0
Unallocated Financing Receivable [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		0	0
Commercial Portfolio Segment [Member]
Carrying value of loans:
Total		386,121	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		2,533	496
Collectively evaluated for impairment		4,574	7,372
Total		7,107	7,868	7,030
Carrying value of loans:
Individually evaluated for impairment		12,417	11,811
Collectively evaluated for impairment		358,580	362,194
Total		370,997	374,005
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		0	0
Commercial Real Estate Portfolio Segment [Member]
Carrying value of loans:
Total		687,243	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		1,034	0
Collectively evaluated for impairment		3,862	4,245
Total		4,896	4,245	10,688
Carrying value of loans:
Individually evaluated for impairment		5,806	2,970
Collectively evaluated for impairment		542,804	564,624
Total		548,610	567,594
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		0	0
Construction Portfolio Segment [Member]
Carrying value of loans:
Total		7,757	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		403	988
Total		403	988	607
Carrying value of loans:
Individually evaluated for impairment		0
Collectively evaluated for impairment		6,762	11,003
Total		6,762	11,003
Construction Portfolio Segment [Member] | Originated Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		0	0
Residential Portfolio Segment [Member]
Carrying value of loans:
Total		137,252	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		2,058	2,241
Total		2,058	2,241	409
Carrying value of loans:
Individually evaluated for impairment		0	574
Collectively evaluated for impairment		134,421	146,351
Total		134,421	146,925
Residential Portfolio Segment [Member] | Originated Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		0	0
Consumer Portfolio Segment [Member]
Carrying value of loans:
Total		412,898	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		7,248	8,154
Total		7,248	8,154	$ 2,520
Carrying value of loans:
Individually evaluated for impairment		0	599
Collectively evaluated for impairment		364,257	370,243
Total		364,257	370,842
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		$ 0	$ 0
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 4 - Loans and Allowance 39

Note 4 - Loans and Allowance for Credit Losses (Details) - Credit Risk Profile by Internally Assigned Grade - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Grade:
Loans by grade		$ 1,631,271	$ 1,700,290
Pass [Member]
Grade:
Loans by grade		1,550,046	1,618,143
Substandard [Member]
Grade:
Loans by grade		88,865	91,387
Doubtful [Member]
Grade:
Loans by grade		94	101
Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		243	499
Default Risk Purchase Discount [Member]
Grade:
Loans by grade		(7,977)	(9,840)
Originated Loans [Member]
Grade:
Loans by grade		1,425,047	1,470,369
Purchased Non-Covered Loans [Member]
Grade:
Loans by grade		191,115	212,843
Purchased Non-Covered Loans [Member] | Pass [Member]
Grade:
Loans by grade		161,919	182,644
Purchased Non-Covered Loans [Member] | Substandard [Member]
Grade:
Loans by grade		36,902	39,473
Purchased Non-Covered Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		74	77
Purchased Non-Covered Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	21
Purchased Non-Covered Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		(7,780)	(9,372)
Purchased Covered Loans [Member]
Grade:
Loans by grade	[1]	15,109	17,078
Purchased Covered Loans [Member] | Pass [Member]
Grade:
Loans by grade	[1]	13,621	15,509
Purchased Covered Loans [Member] | Substandard [Member]
Grade:
Loans by grade	[1]	1,685	2,037
Purchased Covered Loans [Member] | Doubtful [Member]
Grade:
Loans by grade	[1]	0	0
Purchased Covered Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade	[1]	0	0
Purchased Covered Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade	[1]	(197)	(468)
Commercial Portfolio Segment [Member]
Grade:
Loans by grade		386,121	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		370,997	374,005
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		354,025	366,487
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		16,961	7,506
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		11	12
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	0
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		0	0
Commercial Real Estate Portfolio Segment [Member]
Grade:
Loans by grade		687,243	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		548,610	567,594
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		518,410	527,980
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		30,200	39,614
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		0	0
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	0
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		0	0
Construction Portfolio Segment [Member]
Grade:
Loans by grade		7,757	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		6,762	11,003
Construction Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		6,762	11,003
Construction Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		0	0
Construction Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		0	0
Construction Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	0
Construction Portfolio Segment [Member] | Originated Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		0	0
Residential Portfolio Segment [Member]
Grade:
Loans by grade		137,252	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		134,421	146,925
Residential Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		132,116	144,902
Residential Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		2,305	2,023
Residential Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		0	0
Residential Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	0
Residential Portfolio Segment [Member] | Originated Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		0	0
Consumer Portfolio Segment [Member]
Grade:
Loans by grade		412,898	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		364,257	370,842
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		363,193	369,618
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		812	734
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		9	12
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		243	478
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Default Risk Purchase Discount [Member]
Grade:
Loans by grade		$ 0	$ 0
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 4 - Loans and Allowance 40

Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		$ 1,594,399	$ 1,662,592
Nonaccrual		16,225	17,604
Total Loans		1,631,271	1,700,290
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		16,699	17,620
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		3,727	1,972
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		221	502
Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		1,401,633	1,450,053
Nonaccrual		6,280	5,309
Total Loans		1,425,047	1,470,369
Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		14,268	13,027
Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		2,645	1,478
Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		221	502
Purchased Non-Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		177,690	196,150
Nonaccrual		9,942	11,998
Total Loans		191,115	212,843
Purchased Non-Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		2,401	4,204
Purchased Non-Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		1,082	491
Purchased Non-Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Purchased Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		15,076	16,389
Nonaccrual		3	297
Total Loans	[1]	15,109	17,078
Purchased Covered Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		30	389
Purchased Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	3
Purchased Covered Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		386,121	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		367,250	372,235
Nonaccrual		161	30
Total Loans		370,997	374,005
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		3,053	1,704
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		533	36
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		687,243	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		534,629	557,041
Nonaccrual		6,119	4,053
Total Loans		548,610	567,594
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		6,554	6,500
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		1,308	0
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Construction Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		7,757	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		6,762	11,003
Nonaccrual		0	0
Total Loans		6,762	11,003
Construction Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Construction Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Construction Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		137,252	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		132,049	144,021
Nonaccrual		0	574
Total Loans		134,421	146,925
Residential Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		2,044	1,513
Residential Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		328	817
Residential Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		412,898	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		360,943	365,753
Nonaccrual		0	652
Total Loans		364,257	370,842
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		2,617	3,310
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		476	625
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past due		$ 221	$ 502
[1]	Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification.

Note 4 - Loans and Allowance 41

Note 4 - Loans and Allowance for Credit Losses (Details) - Effect of Nonaccrual Loans on Interest Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Effect of Nonaccrual Loans on Interest Income [Abstract]
Interest income that would have been recognized had the loans performed in accordance with their original terms	$ 342	$ 276	$ 654	$ 534
Less: Interest income recognized on nonaccrual loans	(118)	(25)	(324)	(69)
Total reduction of interest income	$ 224	$ 251	$ 330	$ 465

Note 4 - Loans and Allowance 42

Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	$ 2,756	$ 2,031
Impaired loans with no related allowance recorded, Unpaid Principal Balance	2,821	2,095
Impaired loans with an allowance recorded:
Impaired loans with an allowance recorded, Recorded Investment	9,860	9,910
Impaired loans with an allowance recorded, Unpaid Principal Balance	9,860	9,910
Impaired loans with an allowance recorded, Related Allowance	2,533	496
Total:
Total Impaired loans, Recorded Investment	12,616	11,941
Total Impaired loans, Unpaid Principal Balance	12,681	12,005
Total Impaired loans, Related Allowance	2,533	496
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	17,161	19,478
Impaired loans with no related allowance recorded, Unpaid Principal Balance	22,374	25,519
Impaired loans with an allowance recorded:
Impaired loans with an allowance recorded, Recorded Investment	5,109
Impaired loans with an allowance recorded, Unpaid Principal Balance	5,109
Impaired loans with an allowance recorded, Related Allowance	1,034
Total:
Total Impaired loans, Recorded Investment	22,270	19,478
Total Impaired loans, Unpaid Principal Balance	27,483	25,519
Total Impaired loans, Related Allowance	1,034
Construction Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment		1,834
Impaired loans with no related allowance recorded, Unpaid Principal Balance		1,884
Total:
Total Impaired loans, Recorded Investment		1,834
Total Impaired loans, Unpaid Principal Balance		1,884
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	240	574
Impaired loans with no related allowance recorded, Unpaid Principal Balance	270	574
Total:
Total Impaired loans, Recorded Investment	240	574
Total Impaired loans, Unpaid Principal Balance	270	574
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	664	1,518
Impaired loans with no related allowance recorded, Unpaid Principal Balance	711	1,628
Total:
Total Impaired loans, Recorded Investment	664	1,518
Total Impaired loans, Unpaid Principal Balance	$ 711	$ 1,628

Note 4 - Loans and Allowance 43

Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	$ 33,769	$ 27,758	$ 33,673	$ 28,017
Recognized Interest Income	309	220	724	412
Commercial Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	12,564	4,437	12,395	4,639
Recognized Interest Income	147	60	293	127
Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	19,715	19,800	19,017	19,549
Recognized Interest Income	147	153	404	270
Construction Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment		2,035	459	2,147
Residential Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	693	162	776	162
Recognized Interest Income	8		14
Consumer Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	797	1,324	1,026	1,520
Recognized Interest Income	$ 7	$ 7	$ 13	$ 15

Note 4 - Loans and Allowance 44

Note 4 - Loans and Allowance for Credit Losses (Details) - Troubled Debt Restructurings $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)	Jun. 30, 2014USD ($)
Financing Receivable, Modifications [Line Items]
Number of Contracts	14	7
Pre-Modification Carrying Value	$ 7,047	$ 5,608
Period-End Carrying Value	$ 6,594	5,332
Period-End Individual Impairment Allowance		$ 262
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6	4
Pre-Modification Carrying Value	$ 2,813	$ 3,299
Period-End Carrying Value	$ 2,557	2,992
Period-End Individual Impairment Allowance		$ 262
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6	2
Pre-Modification Carrying Value	$ 3,975	$ 2,291
Period-End Carrying Value	$ 3,797	$ 2,326
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Carrying Value	$ 241
Period-End Carrying Value	$ 237
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1	1
Pre-Modification Carrying Value	$ 18	$ 18
Period-End Carrying Value	$ 3	$ 14

Note 5 - Concentration of Cre45

Note 5 - Concentration of Credit Risk (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 5 - Concentration of Credit Risk (Details) [Line Items]
Unsecured Loan Limit, Percentage of Shareholders' Equity, California Financial Code	15.00%
Secured and Unsecured Loan Limit Percentage, California Financial Code	25.00%
Loan Commitments and Standby Letters of Credit Related to Real Estate Loans (in Dollars)	$ 63,076	$ 66,086
Commercial Real Estate Loans [Member]
Note 5 - Concentration of Credit Risk (Details) [Line Items]
Loan To Value Ratio Requirement	75.00%
Residential Real Estate Loans [Member]
Note 5 - Concentration of Credit Risk (Details) [Line Items]
Loan To Value Ratio Requirement	80.00%
Aggregate Loans [Member] | Customer Concentration Risk [Member]
Note 5 - Concentration of Credit Risk (Details) [Line Items]
Concentration Risk, Borrower Relationships	41
Concentration Risk, Aggregate Loan Amount (in Dollars)	$ 5,000

Note 6 - Other Assets (Details)

Note 6 - Other Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Note 6 - Other Assets (Details) [Line Items]
FRB Membership, Stock Subscription, Percent of Paid-Up Capital Stock and Surplus Requirement	6.00%
FHLB Borrowings, Minimum Activity-Based Requirement Percentage of Outstanding Advances	4.70%
LIHTC Investments	$ 16,695	$ 18,673
Qualified Affordable Housing Project Investments, Commitment	2,310
Contingent Commitment, Year 1 [Member]
Note 6 - Other Assets (Details) [Line Items]
Qualified Affordable Housing Project Investments, Commitment	464
Contingent Commitment, Year 2 [Member]
Note 6 - Other Assets (Details) [Line Items]
Qualified Affordable Housing Project Investments, Commitment	763
Contingent Commitment, Year 3 [Member]
Note 6 - Other Assets (Details) [Line Items]
Qualified Affordable Housing Project Investments, Commitment	$ 1,083

Note 6 - Other Assets (Detail47

Note 6 - Other Assets (Details) - Other Assets - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Cost method equity investments:
Federal Reserve Bank stock (1)	[1]	$ 14,069	$ 14,069
Federal Home Loan Bank stock (2)	[2]		940
Other investments		$ 201	241
Total cost method equity investments		14,270	15,250
Life insurance cash surrender value		47,717	46,479
Net deferred tax asset		50,669	50,903
Limited partnership investments		16,695	18,673
Interest receivable		19,340	19,394
Prepaid assets		5,195	5,609
Other assets		11,627	10,150
Total other assets		$ 165,513	$ 166,458
[1]	A bank applying for membership in the Federal Reserve System is required to subscribe to stock in the Federal Reserve Bank of San Francisco (FRB) 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.
[2]	Borrowings from the FHLB must be supported by capital stock holdings. The minimum activity-based requirement is 4.7% of the outstanding advances. The requirement may be adjusted from time to time by the FHLB within limits established in the FHLB's Capital Plan.

Note 6 - Other Assets (Detail48

Note 6 - Other Assets (Details) - Amounts Recognized in Net Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Amounts Recognized in Net Income [Abstract]
Investment loss included in pre-tax income	$ 750	$ 750	$ 1,425	$ 1,450
Tax credits recognized in provision for income taxes	$ 658	$ 771	$ 1,316	$ 1,542

Note 7 - Goodwill and Identif49

Note 7 - Goodwill and Identifiable Intangible Assets (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Asset Impairment	$ 0	$ 0	$ 0

Note 7 - Goodwill and Identif50

Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Carrying Values of Goodwill - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Carrying Values of Goodwill [Abstract]
Goodwill	$ 121,673	$ 121,673

Note 7 - Goodwill and Identif51

Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Gross Carrying Amount of Intangible Assets and Accumulated Amortization - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 67,108	$ 67,108
Accumulated Amortization	(54,777)	(52,821)
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	56,808	56,808
Accumulated Amortization	(45,008)	(43,188)
Mechant Draft Processing [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,300	10,300
Accumulated Amortization	$ (9,769)	$ (9,633)

Note 7 - Goodwill and Identif52

Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Estimated Future Amortization Expense for Identifiable Intangible Assets - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Estimated Future Amortization Expense for Identifiable Intangible Assets [Line Items]
Six months ended June 30, 2015 (actual)	$ 955	$ 1,058	$ 1,956	$ 2,163
Estimate for year ended December 31, 2015	3,856		3,856
2,016	3,504		3,504
2,017	3,077		3,077
2,018	1,921		1,921
2,019	538		538
2,020	287		287
Core Deposits [Member]
Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Estimated Future Amortization Expense for Identifiable Intangible Assets [Line Items]
Six months ended June 30, 2015 (actual)			1,820
Estimate for year ended December 31, 2015	3,594		3,594
2,016	3,292		3,292
2,017	2,913		2,913
2,018	1,892		1,892
2,019	538		538
2,020	287		287
Mechant Draft Processing [Member]
Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Estimated Future Amortization Expense for Identifiable Intangible Assets [Line Items]
Six months ended June 30, 2015 (actual)			136
Estimate for year ended December 31, 2015	262		262
2,016	212		212
2,017	164		164
2,018	$ 29		$ 29

Note 8 - Deposits and Borrowe53

Note 8 - Deposits and Borrowed Funds (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Demand Deposit Overdrafts	$ 3,271,000		$ 3,271,000		$ 3,173,000
Interest Expense, Time Deposits, $100,000 or More	182,000	$ 233,000	379,000	$ 464,000
Long-term Federal Home Loan Bank Advances					20,015,000
Long-term Line of Credit	0		0		0
Residential Real Estate Loans and Securities [Member]
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged					$ 26,484,000
Unsecured Line of Credit [Member]
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 35,000,000		$ 35,000,000
Debt Instrument, Interest Rate, Stated Percentage	2.00%		2.00%

Note 8 - Deposits and Borrowe54

Note 8 - Deposits and Borrowed Funds (Details) - Deposits Detail - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Deposits Detail [Abstract]
Noninterest-bearing	$ 1,930,551	$ 1,910,781
Interest-bearing:
Transaction	795,793	792,448
Savings	1,287,859	1,260,819
Time deposits less than $100 thousand	160,953	169,959
Time deposits $100 thousand through $250 thousand	106,183	113,023
Time deposits more than $250 thousand	73,505	102,161
Total deposits	$ 4,354,844	$ 4,349,191

Note 8 - Deposits and Borrowe55

Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	$ 150,017	$ 148,014
Total short-term borrowed funds	82,747	89,784
US Government-sponsored Enterprises Debt Securities [Member]
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	90,336	80,827
US States and Political Subdivisions Debt Securities [Member]
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	4,915	14,251
Corporate Debt Securities [Member]
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	$ 54,766	$ 52,936

Note 9 - Fair Value Measureme56

Note 9 - Fair Value Measurements (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Note 9 - Fair Value Measurements (Details) [Line Items]
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	30,828	$ 31,187	$ 31,485	$ 32,398	$ 32,109	$ 31,693
Purchased Covered Loans [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Loans and Leases Receivable, Allowance		0	0	0	0	1,561
Fair Value Discount, Credit Default Risk, Purchased Loans	197		468
Purchased Non-Covered Loans [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Loans and Leases Receivable, Allowance		$ 2,339	2,120	$ 2,707	$ 2,574	$ 0
Fair Value Discount, Credit Default Risk, Purchased Loans	$ 7,780		$ 9,372
Fair Value, Inputs, Level 3 [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Fair Value Inputs, Discount Rate	10.00%
Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Fair Value Inputs, Discount Rate	10.00%

Note 9 - Fair Value Measureme57

Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis - USD ($) $ in Thousands		Jun. 30, 2015	Dec. 31, 2014
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		$ 1,634,878	$ 1,600,781
US Treasury Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		3,503	3,505
US Government-sponsored Enterprises Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		431,936	635,188
Residential Mortgage Backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		22,415	26,407
Commercial Mortgage Backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		2,632	2,919
US States and Political Subdivisions Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		168,252	181,799
Residential Collateralized Mortgage Obligations [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		202,750	222,457
Asset-backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		2,659	8,313
FHLMC And FNMA Stock [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale	[1],[2]	5,789	5,168
Domestic Corporate Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		792,121	512,239
Other Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		2,821	2,786
Fair Value, Inputs, Level 1 [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		4,476	644,771
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		3,503	3,505
Fair Value, Inputs, Level 1 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale			635,188
Fair Value, Inputs, Level 1 [Member] | FHLMC And FNMA Stock [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		10	5,168
Fair Value, Inputs, Level 1 [Member] | Other Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		963	910
Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		1,630,402	956,010
Fair Value, Inputs, Level 2 [Member] | US Government-sponsored Enterprises Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		431,936
Fair Value, Inputs, Level 2 [Member] | Residential Mortgage Backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		22,415	26,407
Fair Value, Inputs, Level 2 [Member] | Commercial Mortgage Backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		2,632	2,919
Fair Value, Inputs, Level 2 [Member] | US States and Political Subdivisions Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		168,252	181,799
Fair Value, Inputs, Level 2 [Member] | Residential Collateralized Mortgage Obligations [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		202,750	222,457
Fair Value, Inputs, Level 2 [Member] | Asset-backed Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		2,659	8,313
Fair Value, Inputs, Level 2 [Member] | FHLMC And FNMA Stock [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		5,779
Fair Value, Inputs, Level 2 [Member] | Domestic Corporate Debt Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		792,121	512,239
Fair Value, Inputs, Level 2 [Member] | Other Securities [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Recurring Basis [Line Items]
Investment securities available for sale		$ 1,858	$ 1,876
[1]	Federal Home Loan Mortgage Corporation
[2]	Federal National Mortgage Association

Note 9 - Fair Value Measureme58

Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	$ 26,992	$ 23,459
Total losses	(243)	(1,242)
Other Real Estate Owned [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	9,260	6,374
Total losses	(243)	(358)
Impaired Loans [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	17,732	17,085
Total losses		(884)
Fair Value, Inputs, Level 2 [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value		14,044
Fair Value, Inputs, Level 2 [Member] | Other Real Estate Owned [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value		6,374
Fair Value, Inputs, Level 2 [Member] | Impaired Loans [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value		7,670
Fair Value, Inputs, Level 3 [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	26,992	9,415
Fair Value, Inputs, Level 3 [Member] | Other Real Estate Owned [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	9,260
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	$ 17,732	$ 9,415

Note 9 - Fair Value Measureme59

Note 9 - Fair Value Measurements (Details) - Fair Value Estimates for Financial Instruments, Excluding Financial Instruments Recorded at Fair Value on a Recurring Basis - Fair Value Hierarchy [Domain] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	$ 289,606	$ 380,836
Investment securities held to maturity	1,159,581	1,038,658
Loans	1,600,443	1,668,805
Financial Liabilities:
Deposits	4,354,844	4,349,191
Short-term borrowed funds	82,747	89,784
Federal Home Loan Bank advances		20,015
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	289,606	380,836
Investment securities held to maturity	1,164,603	1,048,562
Loans	1,613,443	1,685,048
Financial Liabilities:
Deposits	4,354,172	4,348,958
Short-term borrowed funds	$ 82,747	89,784
Federal Home Loan Bank advances		$ 20,014

Note 10 - Commitments and Con60

Note 10 - Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Unfunded Loan Commitments	$ 304,499	$ 312,694
Other Liabilities [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Reserve for Unfunded Commitments	2,693	2,693
Financial Standby Letter of Credit [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Letters of Credit Outstanding, Amount	26,969	29,002
Standby Letters of Credit [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Letters of Credit Outstanding, Amount	$ 40	$ 40

Note 11 - Earnings Per Common61

Note 11 - Earnings Per Common Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Employee Stock Option [Member]
Note 11 - Earnings Per Common Share (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,376	1,050	1,575	929

Note 11 - Earnings Per Common62

Note 11 - Earnings Per Common Share (Details) - Earnings Per Common Share and Diluted Earnings Per Common Share - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Common Share and Diluted Earnings Per Common Share [Abstract]
Net income applicable to common equity (numerator) (in Dollars)	$ 14,761	$ 15,157	$ 29,318	$ 30,464
Basic earnings per common share
Weighted average number of common shares outstanding - basic	25,514	26,175	25,582	26,303
Add common stock equivalents for options	22	63	13	84
Weighted average number of common shares outstanding - diluted (denominator)	25,536	26,238	25,595	26,387
Diluted earnings per common share (in Dollars per share)	$ 0.58	$ 0.58	$ 1.15	$ 1.15
Basic earnings per common share (in Dollars per share)	$ 0.58	$ 0.58	$ 1.15	$ 1.16

Uncategorized Items - wabc-2015

Label	Element	Value
Fair Value, Inputs, Level 1 [Member]
Investment securities held to maturity, fair value (in Dollars)	us-gaap_HeldToMaturitySecuritiesFairValue	$ 1,077
Federal Home Loan Bank Borrowings, Fair Value Disclosure	us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure	20,014
Cash and Cash Equivalents, Fair Value Disclosure	us-gaap_CashAndCashEquivalentsFairValueDisclosure	289,606
Cash and Cash Equivalents, Fair Value Disclosure	us-gaap_CashAndCashEquivalentsFairValueDisclosure	380,836
Fair Value, Inputs, Level 2 [Member]
Deposits, Fair Value Disclosure	us-gaap_DepositsFairValueDisclosure	3,964,048
Deposits, Fair Value Disclosure	us-gaap_DepositsFairValueDisclosure	4,014,203
Investment securities held to maturity, fair value (in Dollars)	us-gaap_HeldToMaturitySecuritiesFairValue	1,047,485
Investment securities held to maturity, fair value (in Dollars)	us-gaap_HeldToMaturitySecuritiesFairValue	1,164,603
ShortTermBorrowedFundsFairValueDisclosure	wabc_ShortTermBorrowedFundsFairValueDisclosure	82,747
ShortTermBorrowedFundsFairValueDisclosure	wabc_ShortTermBorrowedFundsFairValueDisclosure	89,784
Fair Value, Inputs, Level 3 [Member]
Deposits, Fair Value Disclosure	us-gaap_DepositsFairValueDisclosure	339,969
Deposits, Fair Value Disclosure	us-gaap_DepositsFairValueDisclosure	384,910
Loans Receivable, Fair Value Disclosure	us-gaap_LoansReceivableFairValueDisclosure	1,613,443
Loans Receivable, Fair Value Disclosure	us-gaap_LoansReceivableFairValueDisclosure	$ 1,685,048