Westamerica Bancorporation (WABC) 10-Q 2 Nov 15 2015 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2015	Oct. 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		25,528,149
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	Sep. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q3

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 268,587	$ 380,836
Investment securities available for sale	1,571,710	1,600,781
Investment securities held to maturity, with fair values of: $1,293,958 at September 30, 2015 and $1,048,562 at December 31, 2014	1,278,814	1,038,658
Loans	1,571,843	1,700,290
Allowance for loan losses	(30,036)	(31,485)
Loans, net of allowance for loan losses	1,541,807	1,668,805
Other real estate owned	9,269	6,374
Premises and equipment, net	39,244	37,852
Identifiable intangibles, net	11,379	14,287
Goodwill	121,673	121,673
Other assets	158,912	166,458
Total Assets	5,001,395	5,035,724
Liabilities:
Noninterest bearing deposits	1,942,450	1,910,781
Interest bearing deposits	2,424,470	2,438,410
Total deposits	4,366,920	4,349,191
Short-term borrowed funds	57,063	89,784
Federal Home Loan Bank advances		20,015
Other liabilities	43,474	50,131
Total Liabilities	4,467,457	4,509,121
Shareholders' Equity:
Common stock (no par value), authorized - 150,000 shares Issued and outstanding: 25,530 at September 30, 2015 and 25,745 at December 31, 2014	378,649	378,132
Deferred compensation	2,578	2,711
Accumulated other comprehensive income	7,198	5,292
Retained earnings	145,513	140,468
Total Shareholders' Equity	533,938	526,603
Total Liabilities and Shareholders' Equity	$ 5,001,395	$ 5,035,724

Consolidated Balance Sheets (U3

Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Investment securities held to maturity, fair values (in Dollars)	$ 1,293,958	$ 1,048,562
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, authorized	150,000	150,000
Common stock, Issued	25,530	25,745
Common stock, outstanding	25,530	25,745

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest and Fee Income:
Loans	$ 19,378	$ 22,129	$ 59,643	$ 67,817
Investment securities available for sale	7,880	6,350	23,347	17,855
Investment securities held to maturity	7,041	6,421	19,651	20,195
Total Interest and Fee Income	34,299	34,900	102,641	105,867
Interest Expense:
Deposits	573	709	1,816	2,216
Short-term borrowed funds	12	23	44	64
Term repurchase agreement	0	11	0	60
Federal Home Loan Bank advances	0	103	1	304
Total Interest Expense	585	846	1,861	2,644
Net Interest Income	33,714	34,054	100,780	103,223
Provision for Loan Losses	0	600	0	2,600
Net Interest Income After Provision For Loan Losses	33,714	33,454	100,780	100,623
Noninterest Income:
Service charges on deposit accounts	5,581	6,207	16,981	18,322
Debit card fees	1,538	1,543	4,528	4,482
Merchant processing services	1,485	1,742	4,971	5,485
Other service fees	693	695	2,041	2,044
Trust fees	682	629	2,061	1,899
ATM processing fees	616	637	1,828	1,891
Financial services commissions	177	194	527	585
Other	1,221	1,407	3,625	4,534
Total Noninterest Income	11,993	13,054	36,562	39,242
Noninterest Expense:
Salaries and related benefits	12,761	13,639	39,795	41,691
Occupancy	3,746	3,811	11,199	11,284
Outsourced data processing services	2,115	2,093	6,334	6,314
Furniture and equipment	1,075	1,059	3,353	3,070
Amortization of identifiable intangibles	952	1,056	2,908	3,219
Professional fees	746	700	1,876	1,707
Courier service	604	663	1,744	1,938
Other real estate owned	83	(287)	451	(908)
Other	4,091	3,882	12,136	12,131
Total Noninterest Expense	26,173	26,616	79,796	80,446
Income Before Income Taxes	19,534	19,892	57,546	59,419
Provision for income taxes	4,677	4,738	13,371	13,801
Net Income	$ 14,857	$ 15,154	$ 44,175	$ 45,618
Average Common Shares Outstanding (in Shares)	25,530	25,973	25,565	26,192
Diluted Average Common Shares Outstanding (in Shares)	25,565	26,016	25,585	26,262
Per Common Share Data:
Basic earnings (in Dollars per share)	$ 0.58	$ 0.58	$ 1.73	$ 1.74
Diluted earnings (in Dollars per share)	0.58	0.58	1.73	1.74
Dividends paid (in Dollars per share)	$ 0.38	$ 0.38	$ 1.14	$ 1.14

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net Income	$ 14,857	$ 15,154	$ 44,175	$ 45,618
Other comprehensive income:
Increase (decrease) in net unrealized gains on securities available for sale	5,522	(4,884)	3,242	9,305
Deferred tax (expense) benefit	(2,321)	2,054	(1,363)	(3,912)
Increase (decrease) in net unrealized gains on securities available for sale, net of tax	3,201	(2,830)	1,879	5,393
Post-retirement benefit transition obligation amortization	15	15	45	45
Deferred tax expense	(6)	(6)	(18)	(18)
Post-retirement benefit transition obligation amortization, net of tax	9	9	27	27
Total Other Comprehensive Income (Loss)	3,210	(2,821)	1,906	5,420
Total Comprehensive Income	$ 18,067	$ 12,333	$ 46,081	$ 51,038

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 period				45,618	45,618
Other comprehensive income			5,420		5,420
Exercise of stock options	$ 12,396				12,396
Exercise of stock options (in Shares)	256
Tax benefit decrease upon expiration/ exercise of stock options	$ (447)				(447)
Restricted stock activity	$ 1,114				1,114
Restricted stock activity (in Shares)	21
Stock based compensation	$ 1,009				1,009
Stock awarded to employees	$ 88				88
Stock awarded to employees (in Shares)	2
Retirement of common stock including repurchases	$ (12,911)			(31,899)	(44,810)
Retirement of common stock including repurchases (in Shares)	(883)
Dividends				(29,927)	(29,927)
Balance at Sep. 30, 2014	$ 380,195	2,711	9,733	140,756	533,395
Balance (in Shares) at Sep. 30, 2014	25,906
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 period				44,175	44,175
Other comprehensive income			1,906		1,906
Exercise of stock options	$ 4,848				4,848
Exercise of stock options (in Shares)	108
Tax benefit decrease upon expiration/ exercise of stock options	$ (1,215)				(1,215)
Restricted stock activity	$ 874	(133)			741
Restricted stock activity (in Shares)	17
Stock based compensation	$ 987				987
Stock awarded to employees	$ 89				89
Stock awarded to employees (in Shares)	2
Retirement of common stock including repurchases	$ (5,066)			(9,962)	(15,028)
Retirement of common stock including repurchases (in Shares)	(342)
Dividends				(29,168)	(29,168)
Balance at Sep. 30, 2015	$ 378,649	$ 2,578	$ 7,198	$ 145,513	$ 533,938
Balance (in Shares) at Sep. 30, 2015	25,530

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Operating Activities:
Net income		$ 44,175	$ 45,618
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		12,379	12,275
Loan loss provision		0	2,600
Net amortization of deferred loan fees		(263)	(179)
Decrease in interest income receivable		757	1,537
Decrease in other assets		107	1,390
Decrease in income taxes payable		(257)	(1,160)
Decrease (increase) in net deferred tax asset		968	(19)
Decrease in interest expense payable		(56)	(102)
Decrease in other liabilities		(2,571)	(3,841)
Stock option compensation expense		987	1,009
Tax benefit decrease upon expiration/exercise of stock options		1,215	447
Gain on sale of other assets			(400)
Net loss on sale of premises and equipment		24	22
Net gain on sale of foreclosed assets		(73)	(1,014)
Writedown of foreclosed assets		315	113
Net Cash Provided by Operating Activities		57,707	58,296
Investing Activities:
Net repayments of loans		$ 124,615	93,115
Proceeds from FDIC1 loss-sharing indemnification	[1]		6,703
Purchases of investment securities available for sale		$ (828,169)	(747,630)
Proceeds from sale/maturity/calls of securities available for sale		858,850	444,906
Purchases of investment securities held to maturity		(366,247)	(26,435)
Proceeds from maturity/calls of securities held to maturity		117,877	115,799
Purchases of premises and equipment		(4,049)	(2,392)
Net change in FRB2/FHLB3 securities	[2],[3]	940	3,248
Proceeds from sale of foreclosed assets		1,774	7,549
Net Cash Used in Investing Activities		(94,409)	(105,137)
Financing Activities:
Net change in deposits		17,737	157,947
Net change in short-term borrowings and FHLB3 advances	[2]	(52,721)	3,992
Exercise of stock options/issuance of shares		4,848	12,396
Tax benefit decrease upon expiration/exercise of stock options		(1,215)	(447)
Retirement of common stock including repurchases		(15,028)	(44,810)
Common stock dividends paid		(29,168)	(29,927)
Net Cash (Used in) Provided by Financing Activities		(75,547)	99,151
Net Change In Cash and Due from Banks		(112,249)	52,310
Cash and Due from Banks at Beginning of Period		380,836	472,028
Cash and Due from Banks at End of Period		268,587	524,338
Supplemental disclosure of non cash activities:
Loan collateral transferred to other real estate owned		4,911	968
Securities purchases pending settlement			24,276
Supplemental disclosure of cash flow activities:
Interest paid for the period		1,941	2,959
Income tax payments for the period		$ 12,596	$ 14,981
[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	9 Months Ended
	Sep. 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 nine months ended September 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	9 Months Ended
	Sep. 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 ASU 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 ASU 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 ASU 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 ASU 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	9 Months Ended
	Sep. 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 Gross Gross Fair (In thousands) U.S. Treasury securities $ 3,000 $ 1 $ - $ 3,001 Securities of U.S. Government sponsored entities 341,038 1,381 (10 ) 342,409 Residential mortgage-backed securities 19,303 1,289 (2 ) 20,590 Commercial mortgage-backed securities 2,547 11 (6 ) 2,552 Obligations of states and political subdivisions 152,158 9,094 (97 ) 161,155 Residential collateralized mortgage obligations 199,059 438 (4,945 ) 194,552 Asset-backed securities 2,350 - (20 ) 2,330 FHLMC 1 2 775 5,725 - 6,500 Corporate securities 836,882 1,707 (2,750 ) 835,839 Other securities 2,039 885 (142 ) 2,782 Total $ 1,559,151 $ 20,531 $ (7,972 ) $ 1,571,710 1 2 An analysis of the amortized cost, gross unrecognized gains and losses, and fair value of the held to maturity investment securities portfolio follows: Investment Securities Held to Maturity Amortized Gross Gross Fair (In thousands) Securities of U.S. government sponsored entities $ 830 $ 10 $ - $ 840 Residential mortgage-backed securities 362,925 2,194 (28 ) 365,091 Commercial mortgage-backed securities 16,379 57 (174 ) 16,262 Obligations of states and political subdivisions 682,818 12,486 (1,204 ) 694,100 Residential collateralized mortgage obligations 215,862 2,404 (601 ) 217,665 Total $ 1,278,814 $ 17,151 $ (2,007 ) $ 1,293,958 An analysis of the amortized cost, gross unrealized gains and losses accumulated in other comprehensive income, and fair value of the available for sale investment securities portfolio follows: Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) 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 Gross Gross Fair (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 September 30, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 111,972 $ 112,333 $ 19,012 $ 19,647 Over 1 to 5 years 1,066,830 1,068,036 237,908 240,961 Over 5 to 10 years 129,133 134,756 285,130 290,517 Over 10 years 27,493 29,609 141,598 143,815 Subtotal 1,335,428 1,344,734 683,648 694,940 Mortgage-backed securities and residential collateralized mortgage obligations 220,909 217,694 595,166 599,018 Other securities 2,814 9,282 - - Total $ 1,559,151 $ 1,571,710 $ 1,278,814 $ 1,293,958 Securities available for sale at September 30, 2015 with maturity dates over one year but less than five years include $337,419 $43,121 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 September 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 Unrealized Investment Unrealized Investment Unrealized ($ in thousands) Securities of U.S. Government sponsored entities 1 $ 4,990 $ (10 ) - $ - $ - 1 $ 4,990 $ (10 ) Residential mortgage-backed securities - - - 1 790 (2 ) 1 790 (2 ) Commercial mortgage-backed securities - - - 1 879 (6 ) 1 879 (6 ) Obligations of states and political subdivisions 4 2,132 (31 ) 5 2,503 (66 ) 9 4,635 (97 ) Residential collateralized mortgage obligations 2 13,280 (245 ) 29 168,927 (4,700 ) 31 182,207 (4,945 ) Asset-backed securities - - - 1 2,330 (20 ) 1 2,330 (20 ) Corporate securities 71 379,170 (2,417 ) 19 63,206 (333 ) 90 442,376 (2,750 ) Other securities - - - 1 1,858 (142 ) 1 1,858 (142 ) Total 78 $ 399,572 $ (2,703 ) 57 $ 240,493 $ (5,269 ) 135 $ 640,065 $ (7,972 ) 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 Fair Value Unrecognized Investment Fair Value Unrecognized Investment Fair Value Unrecognized ($ in thousands) Residential mortgage-backed securities 2 $ 21,047 $ (26 ) 1 $ 96 $ (2 ) 3 $ 21,143 $ (28 ) Commercial mortgage-backed securities 1 7,562 (74 ) 1 6,597 (100 ) 2 14,159 (174 ) Obligations of states and political subdivisions 45 29,242 (189 ) 70 63,195 (1,015 ) 115 92,437 (1,204 ) Residential collateralized mortgage obligations 3 15,821 (60 ) 12 65,404 (541 ) 15 81,225 (601 ) Total 51 $ 73,672 $ (349 ) 84 $ 135,292 $ (1,658 ) 135 $ 208,964 $ (2,007 ) 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 September 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 September 30, 2015, $715,879 An analysis of gross unrealized losses Investment Securities Available for Sale No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Value Unrealized Investment Fair Value Unrealized Investment Fair Value Unrealized ($ 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 Value Unrecognized Investment Fair Value Unrecognized Investment Fair Value Unrecognized ($ 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 Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Taxable $ 9,120 $ 6,348 $ 25,067 $ 17,907 Tax-exempt 5,801 6,423 17,931 20,143 Total interest income from investment securities $ 14,921 $ 12,771 $ 42,998 $ 38,050

Note 4 - Loans and Allowance fo

Note 4 - Loans and Allowance for Credit Losses	9 Months Ended
	Sep. 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 September 30, 2015 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 1,376,905 Purchased covered loans : Gross purchased covered loans - - - 2,467 12,328 14,795 Purchased loan discount - - - (133 ) (22 ) (155 ) Purchased non-covered loans : Gross purchased non-covered loans 15,443 136,600 984 237 34,116 187,380 Purchased loan discount (1,100 ) (4,654 ) - (167 ) (1,161 ) (7,082 ) Total $ 369,196 $ 669,571 $ 4,445 $ 128,876 $ 399,755 $ 1,571,843 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 (3 ) (264 ) Carrying amount at the end of the period $ 4,669 $ 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 2,327 5,016 Accretion (3,031 ) (5,260 ) Balance at the end of the period $ 1,557 $ 2,261 Accretion $ (3,031 ) $ (5,260 ) Change in FDIC indemnification 506 1,110 (Increase) in interest income $ (2,525 ) $ (4,150 ) The following summarizes activity in the allowance for loan losses: Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Additions: Provision 1,246 (96 ) (205 ) (50 ) 367 (15 ) 65 (1,312 ) - Deductions: Chargeoffs (239 ) (449 ) - - (773 ) - - - (1,461 ) Recoveries 300 27 - - 336 6 - - 669 Net loan recoveries (losses) 61 (422 ) - - (437 ) 6 - - (792 ) Total allowance for loan losses $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,460 $ 4,245 $ 644 $ 2,241 $ 7,717 $ 2,120 $ - $ 9,058 $ 31,485 Additions: Provision 2,840 525 (446 ) (233 ) 436 (689 ) 65 (2,498 ) - Deductions: Chargeoffs (700 ) (449 ) - - (2,344 ) (431 ) - - (3,924 ) Recoveries 814 57 - - 1,369 235 - - 2,475 Net loan recoveries (losses) 114 (392 ) - - (975 ) (196 ) - - (1,449 ) Total allowance for loan losses $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Allowance for Credit Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,297 $ 10,664 $ 442 $ 409 $ 2,055 $ 2,707 $ - $ 10,824 $ 32,398 Additions: Provision (269 ) (640 ) - (17 ) 802 (184 ) - 908 600 Deductions: Chargeoffs (905 ) - - - (916 ) - - - (1,821 ) Recoveries 229 15 - - 297 51 - - 592 Net loan (losses) recoveries (676 ) 15 - - (619 ) 51 - - (1,229 ) Balance at end of period 4,352 10,039 442 392 2,238 2,574 - 11,732 31,769 Liability for off-balance sheet credit exposure 1,706 24 105 - 451 131 - 276 2,693 Total allowance for credit losses $ 6,058 $ 10,063 $ 547 $ 392 $ 2,689 $ 2,705 $ - $ 12,008 $ 34,462 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 945 (2,224 ) (163 ) 17 942 1,203 - 1,880 2,600 Deductions: Chargeoffs (1,114 ) - - (30 ) (3,217 ) (260 ) - - (4,621 ) Recoveries 516 193 3 - 1,315 70 - - 2,097 Net loan (losses) recoveries (598 ) 193 3 (30 ) (1,902 ) (190 ) - - (2,524 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 4,352 10,039 442 392 2,238 2,574 - 11,732 31,769 Liability for off-balance sheet credit exposure 1,706 24 105 - 451 131 - 276 2,693 Total allowance for credit losses $ 6,058 $ 10,063 $ 547 $ 392 $ 2,689 $ 2,705 $ - $ 12,008 $ 34,462 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 $ 4,477 $ 585 $ - $ - $ - $ - $ - $ - $ 5,062 Collectively evaluated for impairment 3,937 3,793 198 2,008 7,178 1,235 65 6,560 24,974 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Carrying value of loans: Individually evaluated for impairment $ 12,327 $ 5,864 $ - $ - $ - $ 10,008 $ - $ - $ 28,199 Collectively evaluated for impairment 342,526 531,761 3,461 126,472 354,494 165,833 14,428 - 1,538,975 Purchased loans with evidence of credit deterioration - - - - - 4,457 212 - 4,669 Total $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 180,298 $ 14,640 $ - $ 1,571,843 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 $ 338,778 $ 512,570 $ 3,461 $ 123,753 $ 353,226 $ 155,312 $ 13,128 $ 1,500,228 Substandard 16,075 25,055 - 2,719 900 32,049 1,667 78,465 Doubtful - - - 30 19 - 49 Loss - - - - 338 - - 338 Purchased loan discount - - - - - (7,082 ) (155 ) (7,237 ) Total $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 180,298 $ 14,640 $ 1,571,843 (1) Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification. Credit Risk Profile by Internally Assigned Grade Commercial Commercial 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) Credit risk profile reflects internally assigned grade of purchased covered loans without regard to FDIC indemnification. 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 $ 354,183 $ 417 $ 84 $ - $ 169 $ 354,853 Commercial real estate 527,957 2,667 - - 7,001 537,625 Construction 3,461 - - - - 3,461 Residential real estate 124,305 1,360 471 - 336 126,472 Consumer installment and other 350,289 2,834 818 481 72 354,494 Total originated loans 1,360,195 7,278 1,373 481 7,578 1,376,905 Purchased non-covered loans 168,816 1,736 878 - 8,868 180,298 Purchased covered loans 14,473 137 30 - - 14,640 Total $ 1,543,484 $ 9,151 $ 2,281 $ 481 $ 16,446 $ 1,571,843 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 Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 315 $ 298 $ 969 $ 833 Interest income reversed (recognized) on nonaccrual loans 17 15 (308 ) (55 ) Total reduction of interest income $ 332 $ 313 $ 661 $ 778 There were no commitments to lend additional funds to borrowers whose loans were on nonaccrual status at September 30, 2015 and December 31, 2014. The following summarizes impaired loans: Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 3,073 $ 3,136 $ - Commercial real estate 16,916 21,949 - Construction - - - Residential real estate 566 597 - Consumer installment and other 428 534 - Impaired loans with an allowance recorded: Commercial 9,810 9,810 4,477 Commercial real estate 4,660 5,109 585 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 12,883 $ 12,946 $ 4,477 Commercial real estate 21,576 27,058 585 Construction - - - Residential real estate 566 597 - Consumer installment and other 428 534 - Impaired Loans Recorded Unpaid Related (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 September 30, 2015, included $ 12,880 6,772 Impaired Loans For the Three Months Ended September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 Average Recognized Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,750 $ 147 $ 3,885 $ 59 $ 12,513 $ 440 $ 4,388 $ 186 Commercial real estate 21,923 142 20,787 103 19,985 546 19,961 373 Construction - - 1,934 - 306 - 2,076 - Residential real estate 403 9 - - 652 23 108 - Consumer installment and other 516 6 1,207 7 856 19 1,416 22 Total $ 35,592 $ 304 $ 27,813 $ 169 $ 34,312 $ 1,028 $ 27,949 $ 581 The following table provides information on troubled debt restructurings: Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 6 $ 2,813 $ 2,517 $ - Commercial real estate 7 10,305 10,133 - Residential real estate 1 242 230 - Total 14 $ 13,360 $ 12,880 $ - Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 6 $ 3,465 $ 3,109 $ 259 Commercial real estate 3 2,754 2,787 - Consumer installment and other 1 18 11 - Total 10 $ 6,237 $ 5,907 $ 259 During the three and nine months ended September 30, 2015, the Company modified one 6,330 seven 8,150 seven During the three and nine months ended September 30, 2014, the Company modified three loans with a total carrying value of $617 thousand and five loans with a total carrying value of $726 thousand, respectively, that were considered troubled debt restructurings. The concessions granted in the five restructurings completed in the first nine months of 2014 consisted of modification of payment terms to extend the maturity date to allow for deferred principal repayment. During the three and nine months ended September 30, 2015 and 2014, no troubled debt restructured loans defaulted within 12 months of the modification date. A troubled debt restructuring is considered to be in default when payments are ninety days or more past due. 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 September 30, 2015 and December 31, 2014. At September 30, 2015 and September 30, 2014, the Company held total other real estate owned (OREO) of $ 9,269 7,273 -0- 585 -0- 595

Note 5 - Concentration of Credi

Note 5 - Concentration of Credit Risk	9 Months Ended
	Sep. 30, 2015
Risks and Uncertainties [Abstract]
Concentration Risk Disclosure [Text Block]	Note 5: Concentration of Credit Risk Under the California Financial Code, credit extended to any one person owing to a commercial bank at any one time shall not exceed the following limitations: (a) unsecured loans shall not exceed 15 percent of the sum of the shareholders' equity, allowance for 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 September 30, 2015, Westamerica Bank did not have credit extended to any one entity exceeding these limits. At September 30, 2015, Westamerica Bank had 38 60,848 45

Note 6 - Other Assets

Note 6 - Other Assets	9 Months Ended
	Sep. 30, 2015
Disclosure Text Block Supplement [Abstract]
Other Assets Disclosure [Text Block]	Note 6: Other Assets Other assets consisted of the following: At September 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 48,335 46,479 Net deferred tax asset 47,046 50,903 Limited partnership investments 15,934 18,673 Interest receivable 18,637 19,394 Prepaid assets 4,309 5,609 Other assets 10,381 10,150 Total other assets $ 158,912 $ 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 September 30, 2015, this investment totaled $ 15,934 2,299 453 The amounts recognized in net income for these investments include: For the Three Months For the Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Investment loss included in pre-tax income $ 750 $ 750 $ 2,175 $ 2,200 Tax credits recognized in provision for income taxes 663 610 1,988 2,200

Note 7 - Goodwill and Identifia

Note 7 - Goodwill and Identifiable Intangible Assets	9 Months Ended
	Sep. 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 nine months ended September 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 nine months ended September 30, 2015 and year ended December 31, 2014, no such adjustments were recorded. The carrying values of goodwill were: At September 30, At December 31, (In thousands) Goodwill $ 121,673 $ 121,673 The gross carrying amount of identifiable intangible assets and accumulated amortization was: At September 30, 2015 At December 31, 2014 Gross Accumulated Gross Accumulated (In thousands) Core Deposit Intangibles $ 56,808 $ (45,897 ) $ 56,808 $ (43,188 ) Merchant Draft Processing Intangible 10,300 (9,832 ) 10,300 (9,633 ) Total Identifiable Intangible Assets $ 67,108 $ (55,729 ) $ 67,108 $ (52,821 ) As of September 30, 2015, the current year and estimated future amortization expense for identifiable intangible assets was: Core Merchant Total (In thousands) Nine months ended September 30, 2015 (actual) $ 2,709 $ 199 $ 2,908 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	9 Months Ended
	Sep. 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 September 30, 2015 At December 31, 2014 (In thousands) Noninterest-bearing $ 1,942,450 $ 1,910,781 Interest-bearing: Transaction 812,940 792,448 Savings 1,310,985 1,260,819 Time deposits less than $100 thousand 156,503 169,959 Time deposits $100 thousand through $250 thousand 101,317 113,023 Time deposits more than $250 thousand 42,725 102,161 Total deposits $ 4,366,920 $ 4,349,191 Demand deposit overdrafts of $ 2,753 164 543 The following table provides additional detail regarding short-term borrowed funds. Repurchase Agreements (Sweep) At September 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 $ 110,541 $ 80,827 Obligations of states and political subdivisions 3,975 14,251 Corporate securities 54,832 52,936 Total collateral carrying value $ 169,348 $ 148,014 Total short-term borrowed funds $ 57,063 $ 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 September 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	9 Months Ended
	Sep. 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 three 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 three months ended September 30, 2015 and 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 September 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 $ 3,001 $ 3,001 $ - $ - Securities of U.S. Government sponsored entities 342,409 - 342,409 - Residential mortgage-backed securities 20,590 - 20,590 - Commercial mortgage-backed securities 2,552 - 2,552 - Obligations of states and political subdivisions 161,155 - 161,155 - Residential collateralized mortgage obligations 194,552 - 194,552 - Asset-backed securities 2,330 - 2,330 - FHLMC and FNMA stock 6,500 10 6,490 - Corporate securities 835,839 - 835,839 - Other securities 2,782 924 1,858 - Total securities available for sale $ 1,571,710 $ 3,935 $ 1,567,775 $ - 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 September 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. At September 30, 2015 For the Nine Months Ended September 30, 2015 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,269 $ - $ - $ 9,269 $ (315 ) Impaired loans 15,738 - - 15,738 (449 ) Total assets measured at fair value on a nonrecurring basis $ 25,007 $ - $ - $ 25,007 $ (764 ) 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. At December 31, 2014 For the Year Ended 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 30,036 155 7,082 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 September 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 $ 268,587 $ 268,587 $ 268,587 $ - $ - Investment securities held to maturity 1,278,814 1,293,958 - 1,293,958 - Loans 1,541,807 1,554,908 - - 1,554,908 Financial Liabilities: Deposits $ 4,366,920 $ 4,365,831 $ - $ 4,066,375 $ 299,456 Short-term borrowed funds 57,063 57,063 - 57,063 - 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	9 Months Ended
	Sep. 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 $ 316,947 27,117 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	9 Months Ended
	Sep. 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 Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 14,857 $ 15,154 $ 44,175 $ 45,618 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,530 25,973 25,565 26,192 Basic earnings per common share $ 0.58 $ 0.58 $ 1.73 $ 1.74 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,530 25,973 25,565 26,192 Add common stock equivalents for options 35 43 20 70 Weighted average number of common shares outstanding - diluted (denominator) 25,565 26,016 25,585 26,262 Diluted earnings per common share $ 0.58 $ 0.58 $ 1.73 $ 1.74 For the three and nine months ended September 30, 2015, options to purchase 1,043 1,396 For the three and nine months ended September 30, 2014, options to purchase 1,322 thousand and 1,060

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	9 Months Ended
	Sep. 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 ASU 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 ASU 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 ASU 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 ASU 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)	9 Months Ended
	Sep. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]	Investment Securities Available for Sale Amortized Gross Gross Fair (In thousands) U.S. Treasury securities $ 3,000 $ 1 $ - $ 3,001 Securities of U.S. Government sponsored entities 341,038 1,381 (10 ) 342,409 Residential mortgage-backed securities 19,303 1,289 (2 ) 20,590 Commercial mortgage-backed securities 2,547 11 (6 ) 2,552 Obligations of states and political subdivisions 152,158 9,094 (97 ) 161,155 Residential collateralized mortgage obligations 199,059 438 (4,945 ) 194,552 Asset-backed securities 2,350 - (20 ) 2,330 FHLMC 1 2 775 5,725 - 6,500 Corporate securities 836,882 1,707 (2,750 ) 835,839 Other securities 2,039 885 (142 ) 2,782 Total $ 1,559,151 $ 20,531 $ (7,972 ) $ 1,571,710 Investment Securities Available for Sale Amortized Gross Gross Fair (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 Gross Gross Fair (In thousands) Securities of U.S. government sponsored entities $ 830 $ 10 $ - $ 840 Residential mortgage-backed securities 362,925 2,194 (28 ) 365,091 Commercial mortgage-backed securities 16,379 57 (174 ) 16,262 Obligations of states and political subdivisions 682,818 12,486 (1,204 ) 694,100 Residential collateralized mortgage obligations 215,862 2,404 (601 ) 217,665 Total $ 1,278,814 $ 17,151 $ (2,007 ) $ 1,293,958 Investment Securities Held to Maturity Amortized Gross Gross Fair (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 September 30, 2015 Securities Available Securities Held Amortized Fair Amortized Fair (In thousands) Maturity in years: 1 year or less $ 111,972 $ 112,333 $ 19,012 $ 19,647 Over 1 to 5 years 1,066,830 1,068,036 237,908 240,961 Over 5 to 10 years 129,133 134,756 285,130 290,517 Over 10 years 27,493 29,609 141,598 143,815 Subtotal 1,335,428 1,344,734 683,648 694,940 Mortgage-backed securities and residential collateralized mortgage obligations 220,909 217,694 595,166 599,018 Other securities 2,814 9,282 - - Total $ 1,559,151 $ 1,571,710 $ 1,278,814 $ 1,293,958 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 Unrealized Investment Unrealized Investment Unrealized ($ in thousands) Securities of U.S. Government sponsored entities 1 $ 4,990 $ (10 ) - $ - $ - 1 $ 4,990 $ (10 ) Residential mortgage-backed securities - - - 1 790 (2 ) 1 790 (2 ) Commercial mortgage-backed securities - - - 1 879 (6 ) 1 879 (6 ) Obligations of states and political subdivisions 4 2,132 (31 ) 5 2,503 (66 ) 9 4,635 (97 ) Residential collateralized mortgage obligations 2 13,280 (245 ) 29 168,927 (4,700 ) 31 182,207 (4,945 ) Asset-backed securities - - - 1 2,330 (20 ) 1 2,330 (20 ) Corporate securities 71 379,170 (2,417 ) 19 63,206 (333 ) 90 442,376 (2,750 ) Other securities - - - 1 1,858 (142 ) 1 1,858 (142 ) Total 78 $ 399,572 $ (2,703 ) 57 $ 240,493 $ (5,269 ) 135 $ 640,065 $ (7,972 ) Investment Securities Held to Maturity No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Value Unrecognized Investment Fair Value Unrecognized Investment Fair Value Unrecognized ($ in thousands) Residential mortgage-backed securities 2 $ 21,047 $ (26 ) 1 $ 96 $ (2 ) 3 $ 21,143 $ (28 ) Commercial mortgage-backed securities 1 7,562 (74 ) 1 6,597 (100 ) 2 14,159 (174 ) Obligations of states and political subdivisions 45 29,242 (189 ) 70 63,195 (1,015 ) 115 92,437 (1,204 ) Residential collateralized mortgage obligations 3 15,821 (60 ) 12 65,404 (541 ) 15 81,225 (601 ) Total 51 $ 73,672 $ (349 ) 84 $ 135,292 $ (1,658 ) 135 $ 208,964 $ (2,007 ) Investment Securities Available for Sale No. of Less than 12 months No. of 12 months or longer No. of Total Investment Fair Value Unrealized Investment Fair Value Unrealized Investment Fair Value Unrealized ($ 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 Value Unrecognized Investment Fair Value Unrecognized Investment Fair Value Unrecognized ($ 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 Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Taxable $ 9,120 $ 6,348 $ 25,067 $ 17,907 Tax-exempt 5,801 6,423 17,931 20,143 Total interest income from investment securities $ 14,921 $ 12,771 $ 42,998 $ 38,050

Note 4 - Loans and Allowance 21

Note 4 - Loans and Allowance for Credit Losses (Tables)	9 Months Ended
	Sep. 30, 2015
Loans And Allowance For Credit Losses [Abstract]
Schedule of Loans Receivable [Table Text Block]	At September 30, 2015 Commercial Commercial Construction Residential Consumer Total (In thousands) Originated loans $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 1,376,905 Purchased covered loans : Gross purchased covered loans - - - 2,467 12,328 14,795 Purchased loan discount - - - (133 ) (22 ) (155 ) Purchased non-covered loans : Gross purchased non-covered loans 15,443 136,600 984 237 34,116 187,380 Purchased loan discount (1,100 ) (4,654 ) - (167 ) (1,161 ) (7,082 ) Total $ 369,196 $ 669,571 $ 4,445 $ 128,876 $ 399,755 $ 1,571,843 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 (3 ) (264 ) Carrying amount at the end of the period $ 4,669 $ 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 2,327 5,016 Accretion (3,031 ) (5,260 ) Balance at the end of the period $ 1,557 $ 2,261 Accretion $ (3,031 ) $ (5,260 ) Change in FDIC indemnification 506 1,110 (Increase) in interest income $ (2,525 ) $ (4,150 )
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]	Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 7,107 $ 4,896 $ 403 $ 2,058 $ 7,248 $ 1,244 $ - $ 7,872 $ 30,828 Additions: Provision 1,246 (96 ) (205 ) (50 ) 367 (15 ) 65 (1,312 ) - Deductions: Chargeoffs (239 ) (449 ) - - (773 ) - - - (1,461 ) Recoveries 300 27 - - 336 6 - - 669 Net loan recoveries (losses) 61 (422 ) - - (437 ) 6 - - (792 ) Total allowance for loan losses $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Allowance for Loan Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,460 $ 4,245 $ 644 $ 2,241 $ 7,717 $ 2,120 $ - $ 9,058 $ 31,485 Additions: Provision 2,840 525 (446 ) (233 ) 436 (689 ) 65 (2,498 ) - Deductions: Chargeoffs (700 ) (449 ) - - (2,344 ) (431 ) - - (3,924 ) Recoveries 814 57 - - 1,369 235 - - 2,475 Net loan recoveries (losses) 114 (392 ) - - (975 ) (196 ) - - (1,449 ) Total allowance for loan losses $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Allowance for Credit Losses Commercial Commercial Construction Residential Consumer Purchased Purchased Unallocated Total (In thousands) Allowance for loan losses: Balance at beginning of period $ 5,297 $ 10,664 $ 442 $ 409 $ 2,055 $ 2,707 $ - $ 10,824 $ 32,398 Additions: Provision (269 ) (640 ) - (17 ) 802 (184 ) - 908 600 Deductions: Chargeoffs (905 ) - - - (916 ) - - - (1,821 ) Recoveries 229 15 - - 297 51 - - 592 Net loan (losses) recoveries (676 ) 15 - - (619 ) 51 - - (1,229 ) Balance at end of period 4,352 10,039 442 392 2,238 2,574 - 11,732 31,769 Liability for off-balance sheet credit exposure 1,706 24 105 - 451 131 - 276 2,693 Total allowance for credit losses $ 6,058 $ 10,063 $ 547 $ 392 $ 2,689 $ 2,705 $ - $ 12,008 $ 34,462 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 945 (2,224 ) (163 ) 17 942 1,203 - 1,880 2,600 Deductions: Chargeoffs (1,114 ) - - (30 ) (3,217 ) (260 ) - - (4,621 ) Recoveries 516 193 3 - 1,315 70 - - 2,097 Net loan (losses) recoveries (598 ) 193 3 (30 ) (1,902 ) (190 ) - - (2,524 ) Indemnification expiration - - - - - 1,561 (1,561 ) - - Balance at end of period 4,352 10,039 442 392 2,238 2,574 - 11,732 31,769 Liability for off-balance sheet credit exposure 1,706 24 105 - 451 131 - 276 2,693 Total allowance for credit losses $ 6,058 $ 10,063 $ 547 $ 392 $ 2,689 $ 2,705 $ - $ 12,008 $ 34,462
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 $ 4,477 $ 585 $ - $ - $ - $ - $ - $ - $ 5,062 Collectively evaluated for impairment 3,937 3,793 198 2,008 7,178 1,235 65 6,560 24,974 Purchased loans with evidence of credit deterioration - - - - - - - - - Total $ 8,414 $ 4,378 $ 198 $ 2,008 $ 7,178 $ 1,235 $ 65 $ 6,560 $ 30,036 Carrying value of loans: Individually evaluated for impairment $ 12,327 $ 5,864 $ - $ - $ - $ 10,008 $ - $ - $ 28,199 Collectively evaluated for impairment 342,526 531,761 3,461 126,472 354,494 165,833 14,428 - 1,538,975 Purchased loans with evidence of credit deterioration - - - - - 4,457 212 - 4,669 Total $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 180,298 $ 14,640 $ - $ 1,571,843 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 $ 338,778 $ 512,570 $ 3,461 $ 123,753 $ 353,226 $ 155,312 $ 13,128 $ 1,500,228 Substandard 16,075 25,055 - 2,719 900 32,049 1,667 78,465 Doubtful - - - 30 19 - 49 Loss - - - - 338 - - 338 Purchased loan discount - - - - - (7,082 ) (155 ) (7,237 ) Total $ 354,853 $ 537,625 $ 3,461 $ 126,472 $ 354,494 $ 180,298 $ 14,640 $ 1,571,843 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 $ 354,183 $ 417 $ 84 $ - $ 169 $ 354,853 Commercial real estate 527,957 2,667 - - 7,001 537,625 Construction 3,461 - - - - 3,461 Residential real estate 124,305 1,360 471 - 336 126,472 Consumer installment and other 350,289 2,834 818 481 72 354,494 Total originated loans 1,360,195 7,278 1,373 481 7,578 1,376,905 Purchased non-covered loans 168,816 1,736 878 - 8,868 180,298 Purchased covered loans 14,473 137 30 - - 14,640 Total $ 1,543,484 $ 9,151 $ 2,281 $ 481 $ 16,446 $ 1,571,843 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 Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Interest income that would have been recognized had the loans performed in accordance with their original terms $ 315 $ 298 $ 969 $ 833 Interest income reversed (recognized) on nonaccrual loans 17 15 (308 ) (55 ) Total reduction of interest income $ 332 $ 313 $ 661 $ 778
Impaired Financing Receivables [Table Text Block]	Impaired Loans Recorded Unpaid Related (In thousands) Impaired loans with no related allowance recorded: Commercial $ 3,073 $ 3,136 $ - Commercial real estate 16,916 21,949 - Construction - - - Residential real estate 566 597 - Consumer installment and other 428 534 - Impaired loans with an allowance recorded: Commercial 9,810 9,810 4,477 Commercial real estate 4,660 5,109 585 Construction - - - Residential real estate - - - Consumer installment and other - - - Total: Commercial $ 12,883 $ 12,946 $ 4,477 Commercial real estate 21,576 27,058 585 Construction - - - Residential real estate 566 597 - Consumer installment and other 428 534 - Impaired Loans Recorded Unpaid Related (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 September 30, For the Nine Months Ended September 30, 2015 2014 2015 2014 Average Recognized Average Recognized Average Recognized Average Recognized (In thousands) Commercial $ 12,750 $ 147 $ 3,885 $ 59 $ 12,513 $ 440 $ 4,388 $ 186 Commercial real estate 21,923 142 20,787 103 19,985 546 19,961 373 Construction - - 1,934 - 306 - 2,076 - Residential real estate 403 9 - - 652 23 108 - Consumer installment and other 516 6 1,207 7 856 19 1,416 22 Total $ 35,592 $ 304 $ 27,813 $ 169 $ 34,312 $ 1,028 $ 27,949 $ 581
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 6 $ 2,813 $ 2,517 $ - Commercial real estate 7 10,305 10,133 - Residential real estate 1 242 230 - Total 14 $ 13,360 $ 12,880 $ - Troubled Debt Restructurings Number of Pre-Modification Period-End Period-End (In thousands) Commercial 6 $ 3,465 $ 3,109 $ 259 Commercial real estate 3 2,754 2,787 - Consumer installment and other 1 18 11 - Total 10 $ 6,237 $ 5,907 $ 259

Note 6 - Other Assets (Tables)

Note 6 - Other Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Disclosure Text Block Supplement [Abstract]
Schedule of Other Assets [Table Text Block]	At September 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 48,335 46,479 Net deferred tax asset 47,046 50,903 Limited partnership investments 15,934 18,673 Interest receivable 18,637 19,394 Prepaid assets 4,309 5,609 Other assets 10,381 10,150 Total other assets $ 158,912 $ 166,458
Schedule of Amounts Recognized in Net Income [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands) Investment loss included in pre-tax income $ 750 $ 750 $ 2,175 $ 2,200 Tax credits recognized in provision for income taxes 663 610 1,988 2,200

Note 7 - Goodwill and Identif23

Note 7 - Goodwill and Identifiable Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	At September 30, At December 31, (In thousands) Goodwill $ 121,673 $ 121,673
Schedule of Finite-Lived Intangible Assets [Table Text Block]	At September 30, 2015 At December 31, 2014 Gross Accumulated Gross Accumulated (In thousands) Core Deposit Intangibles $ 56,808 $ (45,897 ) $ 56,808 $ (43,188 ) Merchant Draft Processing Intangible 10,300 (9,832 ) 10,300 (9,633 ) Total Identifiable Intangible Assets $ 67,108 $ (55,729 ) $ 67,108 $ (52,821 )
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Core Merchant Total (In thousands) Nine months ended September 30, 2015 (actual) $ 2,709 $ 199 $ 2,908 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)	9 Months Ended
	Sep. 30, 2015
Deposits And Borrowed Funds [Abstract]
Deposits [Table Text Block]	Deposits At September 30, 2015 At December 31, 2014 (In thousands) Noninterest-bearing $ 1,942,450 $ 1,910,781 Interest-bearing: Transaction 812,940 792,448 Savings 1,310,985 1,260,819 Time deposits less than $100 thousand 156,503 169,959 Time deposits $100 thousand through $250 thousand 101,317 113,023 Time deposits more than $250 thousand 42,725 102,161 Total deposits $ 4,366,920 $ 4,349,191
Schedule of Repurchase Agreements [Table Text Block]	Repurchase Agreements (Sweep) At September 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 $ 110,541 $ 80,827 Obligations of states and political subdivisions 3,975 14,251 Corporate securities 54,832 52,936 Total collateral carrying value $ 169,348 $ 148,014 Total short-term borrowed funds $ 57,063 $ 89,784

Note 9 - Fair Value Measureme25

Note 9 - Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	At September 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 $ 3,001 $ 3,001 $ - $ - Securities of U.S. Government sponsored entities 342,409 - 342,409 - Residential mortgage-backed securities 20,590 - 20,590 - Commercial mortgage-backed securities 2,552 - 2,552 - Obligations of states and political subdivisions 161,155 - 161,155 - Residential collateralized mortgage obligations 194,552 - 194,552 - Asset-backed securities 2,330 - 2,330 - FHLMC and FNMA stock 6,500 10 6,490 - Corporate securities 835,839 - 835,839 - Other securities 2,782 924 1,858 - Total securities available for sale $ 1,571,710 $ 3,935 $ 1,567,775 $ - 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]	At September 30, 2015 For the Nine Months Ended September 30, 2015 Fair Value Level 1 Level 2 Level 3 Total Losses (In thousands) Other real estate owned $ 9,269 $ - $ - $ 9,269 $ (315 ) Impaired loans 15,738 - - 15,738 (449 ) Total assets measured at fair value on a nonrecurring basis $ 25,007 $ - $ - $ 25,007 $ (764 ) At December 31, 2014 For the Year Ended 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 September 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 $ 268,587 $ 268,587 $ 268,587 $ - $ - Investment securities held to maturity 1,278,814 1,293,958 - 1,293,958 - Loans 1,541,807 1,554,908 - - 1,554,908 Financial Liabilities: Deposits $ 4,366,920 $ 4,365,831 $ - $ 4,066,375 $ 299,456 Short-term borrowed funds 57,063 57,063 - 57,063 - 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)	9 Months Ended
	Sep. 30, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	For the Three Months For the Nine Months Ended September 30, 2015 2014 2015 2014 (In thousands, except per share data) Net income applicable to common equity (numerator) $ 14,857 $ 15,154 $ 44,175 $ 45,618 Basic earnings per common share Weighted average number of common shares outstanding - basic (denominator) 25,530 25,973 25,565 26,192 Basic earnings per common share $ 0.58 $ 0.58 $ 1.73 $ 1.74 Diluted earnings per common share Weighted average number of common shares outstanding - basic 25,530 25,973 25,565 26,192 Add common stock equivalents for options 35 43 20 70 Weighted average number of common shares outstanding - diluted (denominator) 25,565 26,016 25,585 26,262 Diluted earnings per common share $ 0.58 $ 0.58 $ 1.73 $ 1.74

Note 3 - Investment Securitie27

Note 3 - Investment Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Note 3 - Investment Securities (Details) [Line Items]
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	$ 1,068,036	$ 630,797
Pledged Financial Instruments, Not Separately Reported, Securities	715,879	$ 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	337,419
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	$ 43,121

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		Sep. 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		$ 1,559,151	$ 1,591,464
Gross Unrealized Gains		20,531	20,806
Gross Unrealized Losses		(7,972)	(11,489)
Fair Value		1,571,710	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		3,000	3,500
Gross Unrealized Gains		1	5
Fair Value		3,001	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		341,038	635,278
Gross Unrealized Gains		1,381	937
Gross Unrealized Losses		(10)	(1,027)
Fair Value		342,409	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		19,303	24,647
Gross Unrealized Gains		1,289	1,776
Gross Unrealized Losses		(2)	(16)
Fair Value		20,590	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		2,547	2,923
Gross Unrealized Gains		11	6
Gross Unrealized Losses		(6)	(10)
Fair Value		2,552	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		152,158	171,907
Gross Unrealized Gains		9,094	10,015
Gross Unrealized Losses		(97)	(123)
Fair Value		161,155	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		199,059	230,347
Gross Unrealized Gains		438	634
Gross Unrealized Losses		(4,945)	(8,524)
Fair Value		194,552	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		2,350	8,349
Gross Unrealized Losses		(20)	(36)
Fair Value		2,330	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]	$ 5,725	$ 4,393
Gross Unrealized Losses	[1],[2]
Fair Value	[1],[2]	$ 6,500	$ 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		836,882	511,699
Gross Unrealized Gains		1,707	2,169
Gross Unrealized Losses		(2,750)	(1,629)
Fair Value		835,839	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		885	871
Gross Unrealized Losses		(142)	(124)
Fair Value		$ 2,782	$ 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	Sep. 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	$ 1,278,814	$ 1,038,658
Gross Unrecognized Gains	17,151	14,780
Gross Unrecognized Losses	(2,007)	(4,876)
Estimated Fair Value	1,293,958	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	830	1,066
Gross Unrecognized Gains	10	11
Estimated Fair Value	840	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	362,925	59,078
Gross Unrecognized Gains	2,194	1,183
Gross Unrecognized Losses	(28)	(137)
Estimated Fair Value	365,091	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	16,379
Gross Unrecognized Gains	57
Gross Unrecognized Losses	(174)
Estimated Fair Value	16,262
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	682,818	720,189
Gross Unrecognized Gains	12,486	11,350
Gross Unrecognized Losses	(1,204)	(2,358)
Estimated Fair Value	694,100	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	215,862	258,325
Gross Unrecognized Gains	2,404	2,236
Gross Unrecognized Losses	(601)	(2,381)
Estimated Fair Value	$ 217,665	$ 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	Sep. 30, 2015	Dec. 31, 2014
Maturity in years:
Securities Available for Sale, Amortized Cost, 1 year or less	$ 111,972	$ 57,891
Securities Available for Sale, Estimated Market Value, 1 year or less	112,333	57,991
Securities Held to Maturity, Amortized Cost, 1 year or less	19,012	15,355
Securities Held to Maturity, Estimated Market Value, 1 year or less	19,647	15,855
Securities Available for Sale, Amortized Cost, Over 1 to 5 years	1,066,830	629,200
Securities Available for Sale, Estimated Market Value, Over 1 to 5 years	1,068,036	630,797
Securities Held to Maturity, Amortized Cost, Over 1 to 5 years	237,908	228,380
Securities Held to Maturity, Estimated Market Value, Over 1 to 5 years	240,961	230,248
Securities Available for Sale, Amortized Cost, Over 5 to 10 years	129,133	584,872
Securities Available for Sale, Estimated Market Value, Over 5 to 10 years	134,756	589,250
Securities Held to Maturity, Amortized Cost, Over 5 to 10 years	285,130	285,219
Securities Held to Maturity, Estimated Market Value, Over 5 to 10 years	290,517	288,631
Securities Available for Sale, Amortized Cost, Over 10 years	27,493	58,770
Securities Available for Sale, Estimated Market Value, Over 10 years	29,609	63,006
Securities Held to Maturity, Amortized Cost, Over 10 years	141,598	192,301
Securities Held to Maturity, Estimated Market Value, Over 10 years	143,815	195,524
Securities Available for Sale, Amortized Cost, Subtotal	1,335,428	1,330,733
Securities Available for Sale, Estimated Market Value, Subtotal	1,344,734	1,341,044
Securities Held to Maturity, Amortized Cost, Subtotal	683,648	721,255
Securities Held to Maturity, Estimated Market Value, Subtotal	694,940	730,258
Securities Available for Sale, Amortized Cost, Mortgage-backed securities and residential collateralized mortgage obligations	220,909	257,917
Securities Available for Sale, Estimated Market Value, Mortgage-backed securities and residential collateralized mortgage obligations	217,694	251,783
Securities Held to Maturity, Amortized Cost, Mortgage-backed securities and residential collateralized mortgage obligations	595,166	317,403
Securities Held to Maturity, Estimated Market Value, Mortgage-backed securities and residential collateralized mortgage obligations	599,018	318,304
Securities Available for Sale, Amortized Cost, Other securities	2,814	2,814
Securities Available for Sale, Estimated Market Value, Other securities	9,282	7,954
Securities Available for Sale, Amortized Cost, Total	1,559,151	1,591,464
Securities Available for Sale, Estimated Market Value, Total	1,571,710	1,600,781
Securities Held to Maturity, Amortized Cost, Total	1,278,814	1,038,658
Securities Held to Maturity, Estimated Market Value, Total	$ 1,293,958	$ 1,048,562

Note 3 - Investment Securitie31

Note 3 - Investment Securities (Details) - Gross Unrealized Losses, Investment Securities Portfolio $ in Thousands	Sep. 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	78	77
Available for sale securities, less than 12 months, fair value	$ 399,572	$ 427,156
Available for sale securities, less than 12 months, unrealized losses	$ (2,703)	$ (2,325)
Available for sale securities, 12 months or longer, number of investment positions	57	60
Available for sale securities, 12 months or longer, fair value	$ 240,493	$ 261,583
Available for sale securities, 12 months or longer, unrealized losses	$ (5,269)	$ (9,164)
Available for sale securities, total, number of investment positions	135	137
Available for sale securities, total, fair value	$ 640,065	$ 688,739
Available for sale securities, total, unrealized losses	$ (7,972)	$ (11,489)
Held to Maturity securities, less than 12 months, number of investment positions	51	112
Held to Maturity securities, less than 12 months, fair value	$ 73,672	$ 109,601
Held to Maturity securities, less than 12 months, unrealized losses	$ (349)	$ (737)
Held to Maturity securities, 12 months or longer, number of investment positions	84	161
Held to Maturity securities, 12 months or longer, fair value	$ 135,292	$ 243,084
Held to Maturity securities, 12 months or longer, unrealized losses	$ (1,658)	$ (4,139)
Held to Maturity securities, total, number of investment positions	135	273
Held to Maturity securities, total, fair value	$ 208,964	$ 352,685
Held to Maturity securities, total, unrealized losses	$ (2,007)	$ (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	1	15
Available for sale securities, less than 12 months, fair value	$ 4,990	$ 253,632
Available for sale securities, less than 12 months, unrealized losses	$ (10)	$ (989)
Available for sale securities, 12 months or longer, number of investment positions		1
Available for sale securities, 12 months or longer, fair value		$ 9,963
Available for sale securities, 12 months or longer, unrealized losses		$ (38)
Available for sale securities, total, number of investment positions	1	16
Available for sale securities, total, fair value	$ 4,990	$ 263,595
Available for sale securities, total, unrealized losses	$ (10)	$ (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	$ 790	$ 822
Available for sale securities, 12 months or longer, unrealized losses	$ (2)	$ (16)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 790	$ 822
Available for sale securities, total, unrealized losses	$ (2)	$ (16)
Held to Maturity securities, less than 12 months, number of investment positions	2	4
Held to Maturity securities, less than 12 months, fair value	$ 21,047	$ 19,467
Held to Maturity securities, less than 12 months, unrealized losses	$ (26)	$ (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	$ 96	$ 201
Held to Maturity securities, 12 months or longer, unrealized losses	$ (2)	$ (5)
Held to Maturity securities, total, number of investment positions	3	5
Held to Maturity securities, total, fair value	$ 21,143	$ 19,668
Held to Maturity securities, total, unrealized losses	$ (28)	$ (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
Available for sale securities, less than 12 months, fair value		$ 942
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	$ 879	$ 803
Available for sale securities, 12 months or longer, unrealized losses	$ (6)	$ (3)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 879	$ 1,745
Available for sale securities, total, unrealized losses	$ (6)	$ (10)
Held to Maturity securities, less than 12 months, number of investment positions	1
Held to Maturity securities, less than 12 months, fair value	$ 7,562
Held to Maturity securities, less than 12 months, unrealized losses	$ (74)
Held to Maturity securities, 12 months or longer, number of investment positions	1
Held to Maturity securities, 12 months or longer, fair value	$ 6,597
Held to Maturity securities, 12 months or longer, unrealized losses	$ (100)
Held to Maturity securities, total, number of investment positions	2
Held to Maturity securities, total, fair value	$ 14,159
Held to Maturity securities, total, unrealized losses	$ (174)
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	4	7
Available for sale securities, less than 12 months, fair value	$ 2,132	$ 2,548
Available for sale securities, less than 12 months, unrealized losses	$ (31)	$ (18)
Available for sale securities, 12 months or longer, number of investment positions	5	17
Available for sale securities, 12 months or longer, fair value	$ 2,503	$ 5,518
Available for sale securities, 12 months or longer, unrealized losses	$ (66)	$ (105)
Available for sale securities, total, number of investment positions	9	24
Available for sale securities, total, fair value	$ 4,635	$ 8,066
Available for sale securities, total, unrealized losses	$ (97)	$ (123)
Held to Maturity securities, less than 12 months, number of investment positions	45	103
Held to Maturity securities, less than 12 months, fair value	$ 29,242	$ 76,202
Held to Maturity securities, less than 12 months, unrealized losses	$ (189)	$ (439)
Held to Maturity securities, 12 months or longer, number of investment positions	70	138
Held to Maturity securities, 12 months or longer, fair value	$ 63,195	$ 123,370
Held to Maturity securities, 12 months or longer, unrealized losses	$ (1,015)	$ (1,919)
Held to Maturity securities, total, number of investment positions	115	241
Held to Maturity securities, total, fair value	$ 92,437	$ 199,572
Held to Maturity securities, total, unrealized losses	$ (1,204)	$ (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	$ 13,280
Available for sale securities, less than 12 months, unrealized losses	$ (245)
Available for sale securities, 12 months or longer, number of investment positions	29	32
Available for sale securities, 12 months or longer, fair value	$ 168,927	$ 205,074
Available for sale securities, 12 months or longer, unrealized losses	$ (4,700)	$ (8,524)
Available for sale securities, total, number of investment positions	31	32
Available for sale securities, total, fair value	$ 182,207	$ 205,074
Available for sale securities, total, unrealized losses	$ (4,945)	$ (8,524)
Held to Maturity securities, less than 12 months, number of investment positions	3	5
Held to Maturity securities, less than 12 months, fair value	$ 15,821	$ 13,932
Held to Maturity securities, less than 12 months, unrealized losses	$ (60)	$ (166)
Held to Maturity securities, 12 months or longer, number of investment positions	12	22
Held to Maturity securities, 12 months or longer, fair value	$ 65,404	$ 119,513
Held to Maturity securities, 12 months or longer, unrealized losses	$ (541)	$ (2,215)
Held to Maturity securities, total, number of investment positions	15	27
Held to Maturity securities, total, fair value	$ 81,225	$ 133,445
Held to Maturity securities, total, unrealized losses	$ (601)	$ (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	$ 2,330	$ 3,305
Available for sale securities, 12 months or longer, unrealized losses	$ (20)	$ (29)
Available for sale securities, total, number of investment positions	1	2
Available for sale securities, total, fair value	$ 2,330	$ 8,313
Available for sale securities, total, unrealized losses	$ (20)	$ (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	71	53
Available for sale securities, less than 12 months, fair value	$ 379,170	$ 165,026
Available for sale securities, less than 12 months, unrealized losses	$ (2,417)	$ (1,304)
Available for sale securities, 12 months or longer, number of investment positions	19	5
Available for sale securities, 12 months or longer, fair value	$ 63,206	$ 34,222
Available for sale securities, 12 months or longer, unrealized losses	$ (333)	$ (325)
Available for sale securities, total, number of investment positions	90	58
Available for sale securities, total, fair value	$ 442,376	$ 199,248
Available for sale securities, total, unrealized losses	$ (2,750)	$ (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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Interest Income from Investment Securities [Abstract]
Taxable	$ 9,120	$ 6,348	$ 25,067	$ 17,907
Tax-exempt	5,801	6,423	17,931	20,143
Total interest income from investment securities	$ 14,921	$ 12,771	$ 42,998	$ 38,050

Note 4 - Loans and Allowance 33

Note 4 - Loans and Allowance for Credit Losses (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Loans and Leases Receivable, Nonaccrual, Commitment to Lend		$ 0		$ 0		$ 0
Financing Receivable, Modifications, Recorded Investment		$ 12,880,000	$ 5,907,000	$ 12,880,000	$ 5,907,000
Troubled Debt Restructurings During Period		1	3	7	5
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		9,269,000	$ 7,273,000	9,269,000	$ 7,273,000	6,374,000
Mortgage Loans in Process of Foreclosure, Amount		0	595,000	0	595,000
Restructured Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		12,880,000		12,880,000		4,837,000
Impaired Loans, Restructured, Nonaccrual Status		6,772,000		6,772,000		$ 0
One Loan [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		6,330,000		6,330,000
Seven Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment		8,150,000		8,150,000
Three Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment			617,000		617,000
Five Loans [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Financing Receivable, Modifications, Recorded Investment			726,000		726,000
Residential Real Estate Included in OREO [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) [Line Items]
Real Estate Acquired Through Foreclosure		$ 0	$ 585,000	$ 0	$ 585,000

Note 4 - Loans and Allowance 34

Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	$ 1,376,905	$ 1,470,369
Purchased covered loans:
Gross purchased covered loans	14,795	17,546
Purchased loan discount	(155)	(468)
Purchased non-covered loans:
Gross purchased non-covered loans	187,380	222,215
Purchased loan discount	(7,082)	(9,372)
Total	1,571,843	1,700,290
Commercial Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	354,853	374,005
Purchased non-covered loans:
Gross purchased non-covered loans	15,443	19,166
Purchased loan discount	(1,100)	(1,356)
Total	369,196	391,815
Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	537,625	567,594
Purchased non-covered loans:
Gross purchased non-covered loans	136,600	157,502
Purchased loan discount	(4,654)	(6,492)
Total	669,571	718,604
Construction Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	3,461	11,003
Purchased non-covered loans:
Gross purchased non-covered loans	984	2,919
Purchased loan discount		(50)
Total	4,445	13,872
Residential Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	126,472	146,925
Purchased covered loans:
Gross purchased covered loans	2,467	2,626
Purchased loan discount	(133)	(434)
Purchased non-covered loans:
Gross purchased non-covered loans	237	972
Purchased loan discount	(167)	(262)
Total	128,876	149,827
Consumer Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Loans by Delinquency and Nonaccrual Status [Line Items]
Originated loans	354,494	370,842
Purchased covered loans:
Gross purchased covered loans	12,328	14,920
Purchased loan discount	(22)	(34)
Purchased non-covered loans:
Gross purchased non-covered loans	34,116	41,656
Purchased loan discount	(1,161)	(1,212)
Total	$ 399,755	$ 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	9 Months Ended	12 Months Ended
	Sep. 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	(3)	(264)
Carrying amount at the end of the period	$ 4,669	$ 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	9 Months Ended	12 Months Ended
	Sep. 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	2,327	5,016
Accretion	(3,031)	(5,260)
Change in FDIC indemnification	506	1,110
(Increase) in interest income	(2,525)	(4,150)
Balance at the end of the period	$ 1,557	$ 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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Allowance for loan losses:
Balance at beginning of period	$ 30,828	$ 32,398	$ 31,485	$ 31,693
Additions:
Provision	0	600	0	2,600
Deductions:
Chargeoffs	(1,461)	(1,821)	(3,924)	(4,621)
Recoveries	669	592	2,475	2,097
Net loan recoveries (losses)	(792)	(1,229)	(1,449)	(2,524)
Indemnification expiration				0
Balance at end of period	30,828	32,398	31,485	31,693	$ 30,036	$ 31,769
Liability for off-balance sheet credit exposure						2,693
Total allowance for loan losses	30,036	34,462	30,036	34,462
Originated Loans [Member] | Commercial Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	7,107	5,297	5,460	4,005
Additions:
Provision	1,246	(269)	2,840	945
Deductions:
Chargeoffs	(239)	(905)	(700)	(1,114)
Recoveries	300	229	814	516
Net loan recoveries (losses)	61	(676)	114	(598)
Indemnification expiration				0
Balance at end of period	7,107	5,297	5,460	4,005		4,352
Liability for off-balance sheet credit exposure						1,706
Total allowance for loan losses	8,414	6,058	8,414	6,058
Originated Loans [Member] | Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	4,896	10,664	4,245	12,070
Additions:
Provision	(96)	(640)	525	(2,224)
Deductions:
Chargeoffs	(449)	0	(449)	0
Recoveries	27	15	57	193
Net loan recoveries (losses)	(422)	15	(392)	193
Indemnification expiration				0
Balance at end of period	4,896	10,664	4,245	12,070		10,039
Liability for off-balance sheet credit exposure						24
Total allowance for loan losses	4,378	10,063	4,378	10,063
Originated Loans [Member] | Construction Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	403	442	644	602
Additions:
Provision	(205)	0	(446)	(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	403	442	644	602		442
Liability for off-balance sheet credit exposure						105
Total allowance for loan losses	198	547	198	547
Originated Loans [Member] | Residential Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	2,058	409	2,241	405
Additions:
Provision	(50)	(17)	(233)	17
Deductions:
Chargeoffs	0	0	0	(30)
Recoveries	0	0	0	0
Net loan recoveries (losses)	0	0	0	(30)
Indemnification expiration				0
Balance at end of period	2,058	409	2,241	405		392
Liability for off-balance sheet credit exposure						0
Total allowance for loan losses	2,008	392	2,008	392
Originated Loans [Member] | Consumer Portfolio Segment [Member]
Allowance for loan losses:
Balance at beginning of period	7,248	2,055	7,717	3,198
Additions:
Provision	367	802	436	942
Deductions:
Chargeoffs	(773)	(916)	(2,344)	(3,217)
Recoveries	336	297	1,369	1,315
Net loan recoveries (losses)	(437)	(619)	(975)	(1,902)
Indemnification expiration				0
Balance at end of period	7,248	2,055	7,717	3,198		2,238
Liability for off-balance sheet credit exposure						451
Total allowance for loan losses	7,178	2,689	7,178	2,689
Purchased Non-Covered Loans [Member]
Allowance for loan losses:
Balance at beginning of period	1,244	2,707	2,120	0
Additions:
Provision	(15)	(184)	(689)	1,203
Deductions:
Chargeoffs	0	0	(431)	(260)
Recoveries	6	51	235	70
Net loan recoveries (losses)	6	51	(196)	(190)
Indemnification expiration				1,561
Balance at end of period	1,244	2,707	2,120	0		2,574
Liability for off-balance sheet credit exposure						131
Total allowance for loan losses	1,235	2,705	1,235	2,705
Purchased Covered Loans [Member]
Allowance for loan losses:
Balance at beginning of period	0	0	0	1,561
Additions:
Provision	65	0	65	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						0
Total allowance for loan losses	65	0	65	0
Unallocated Financing Receivable [Member]
Allowance for loan losses:
Balance at beginning of period	7,872	10,824	9,058	9,852
Additions:
Provision	(1,312)	908	(2,498)	1,880
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	7,872	10,824	9,058	9,852		11,732
Liability for off-balance sheet credit exposure						$ 276
Total allowance for loan losses	$ 6,560	$ 12,008	$ 6,560	$ 12,008

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		Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014
Allowance for loan losses:
Individually evaluated for impairment		$ 5,062	$ 496
Collectively evaluated for impairment		24,974	33,682
Total		30,036	34,178	$ 34,462
Carrying value of loans:
Individually evaluated for impairment		28,199	28,318
Collectively evaluated for impairment		1,538,975	1,667,300
Total		1,571,843	1,700,290
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses:
Total		0	0
Carrying value of loans:
Total		4,669	4,672
Originated Loans [Member]
Carrying value of loans:
Total		1,376,905	1,470,369
Purchased Non-Covered Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		1,235	2,120
Total		1,235	2,120	2,705
Carrying value of loans:
Individually evaluated for impairment		10,008	12,364
Collectively evaluated for impairment		165,833	196,034
Total		180,298	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		4,457	4,445
Purchased Covered Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		65	0
Total		65	0	0
Carrying value of loans:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		14,428	16,851
Total	[1]	14,640	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		212	227
Unallocated Financing Receivable [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		6,560	8,562
Total		6,560	8,562	12,008
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		369,196	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		4,477	496
Collectively evaluated for impairment		3,937	7,372
Total		8,414	7,868	6,058
Carrying value of loans:
Individually evaluated for impairment		12,327	11,811
Collectively evaluated for impairment		342,526	362,194
Total		354,853	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		669,571	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		585	0
Collectively evaluated for impairment		3,793	4,245
Total		4,378	4,245	10,063
Carrying value of loans:
Individually evaluated for impairment		5,864	2,970
Collectively evaluated for impairment		531,761	564,624
Total		537,625	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		4,445	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		198	988
Total		198	988	547
Carrying value of loans:
Individually evaluated for impairment		0
Collectively evaluated for impairment		3,461	11,003
Total		3,461	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		128,876	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		2,008	2,241
Total		2,008	2,241	392
Carrying value of loans:
Individually evaluated for impairment		0	574
Collectively evaluated for impairment		126,472	146,351
Total		126,472	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		399,755	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Allowance for loan losses:
Individually evaluated for impairment		0	0
Collectively evaluated for impairment		7,178	8,154
Total		7,178	8,154	$ 2,689
Carrying value of loans:
Individually evaluated for impairment		0	599
Collectively evaluated for impairment		354,494	370,243
Total		354,494	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		Sep. 30, 2015	Dec. 31, 2014
Grade:
Loans by grade		$ 1,571,843	$ 1,700,290
Pass [Member]
Grade:
Loans by grade		1,500,228	1,618,143
Substandard [Member]
Grade:
Loans by grade		78,465	91,387
Doubtful [Member]
Grade:
Loans by grade		49	101
Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		338	499
Purchased Loan Discount [Member]
Grade:
Loans by grade		(7,237)	(9,840)
Originated Loans [Member]
Grade:
Loans by grade		1,376,905	1,470,369
Purchased Non-Covered Loans [Member]
Grade:
Loans by grade		180,298	212,843
Purchased Non-Covered Loans [Member] | Pass [Member]
Grade:
Loans by grade		155,312	182,644
Purchased Non-Covered Loans [Member] | Substandard [Member]
Grade:
Loans by grade		32,049	39,473
Purchased Non-Covered Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		19	77
Purchased Non-Covered Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		0	21
Purchased Non-Covered Loans [Member] | Purchased Loan Discount [Member]
Grade:
Loans by grade		(7,082)	(9,372)
Purchased Covered Loans [Member]
Grade:
Loans by grade	[1]	14,640	17,078
Purchased Covered Loans [Member] | Pass [Member]
Grade:
Loans by grade	[1]	13,128	15,509
Purchased Covered Loans [Member] | Substandard [Member]
Grade:
Loans by grade	[1]	1,667	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] | Purchased Loan Discount [Member]
Grade:
Loans by grade	[1]	(155)	(468)
Commercial Portfolio Segment [Member]
Grade:
Loans by grade		369,196	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		354,853	374,005
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		338,778	366,487
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		16,075	7,506
Commercial Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		0	12
Commercial 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]
Grade:
Loans by grade		669,571	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		537,625	567,594
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		512,570	527,980
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		25,055	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
Construction Portfolio Segment [Member]
Grade:
Loans by grade		4,445	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		3,461	11,003
Construction Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		3,461	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
Residential Portfolio Segment [Member]
Grade:
Loans by grade		128,876	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		126,472	146,925
Residential Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		123,753	144,902
Residential Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		2,719	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
Consumer Portfolio Segment [Member]
Grade:
Loans by grade		399,755	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Grade:
Loans by grade		354,494	370,842
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Pass [Member]
Grade:
Loans by grade		353,226	369,618
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Substandard [Member]
Grade:
Loans by grade		900	734
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Doubtful [Member]
Grade:
Loans by grade		30	12
Consumer Portfolio Segment [Member] | Originated Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Grade:
Loans by grade		$ 338	$ 478
[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		Sep. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		$ 1,543,484	$ 1,662,592
Nonaccrual		16,446	17,604
Total Loans		1,571,843	1,700,290
Financing Receivables, 30 to 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		9,151	17,620
Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		2,281	1,972
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		481	502
Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		1,360,195	1,450,053
Nonaccrual		7,578	5,309
Total Loans		1,376,905	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		7,278	13,027
Originated Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		1,373	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		481	502
Purchased Non-Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		168,816	196,150
Nonaccrual		8,868	11,998
Total Loans		180,298	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		1,736	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		878	491
Purchased Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		14,473	16,389
Nonaccrual			297
Total Loans	[1]	14,640	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		137	389
Purchased Covered Loans [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Past Due		30	3
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		369,196	391,815
Commercial Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		354,183	372,235
Nonaccrual		169	30
Total Loans		354,853	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		417	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		84	36
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		669,571	718,604
Commercial Real Estate Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		527,957	557,041
Nonaccrual		7,001	4,053
Total Loans		537,625	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		2,667	6,500
Construction Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		4,445	13,872
Construction Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		3,461	11,003
Total Loans		3,461	11,003
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		128,876	149,827
Residential Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		124,305	144,021
Nonaccrual		336	574
Total Loans		126,472	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		1,360	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		471	817
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans		399,755	426,172
Consumer Portfolio Segment [Member] | Originated Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current and Accruing		350,289	365,753
Nonaccrual		72	652
Total Loans		354,494	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		2,834	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		818	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		$ 481	$ 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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 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	$ 315	$ 298	$ 969	$ 833
Interest income reversed (recognized) on nonaccrual loans	17	15	(308)	(55)
Total reduction of interest income	$ 332	$ 313	$ 661	$ 778

Note 4 - Loans and Allowance 42

Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans - USD ($) $ in Thousands	Sep. 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	$ 3,073	$ 2,031
Impaired loans with no related allowance recorded, Unpaid Principal Balance	3,136	2,095
Impaired loans with an allowance recorded:
Impaired loans with an allowance recorded, Recorded Investment	9,810	9,910
Impaired loans with an allowance recorded, Unpaid Principal Balance	9,810	9,910
Impaired loans with an allowance recorded, Related Allowance	4,477	496
Total:
Total Impaired loans, Recorded Investment	12,883	11,941
Total Impaired loans, Unpaid Principal Balance	12,946	12,005
Total Impaired loans, Related Allowance	4,477	496
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	16,916	19,478
Impaired loans with no related allowance recorded, Unpaid Principal Balance	21,949	25,519
Impaired loans with an allowance recorded:
Impaired loans with an allowance recorded, Recorded Investment	4,660
Impaired loans with an allowance recorded, Unpaid Principal Balance	5,109
Impaired loans with an allowance recorded, Related Allowance	585
Total:
Total Impaired loans, Recorded Investment	21,576	19,478
Total Impaired loans, Unpaid Principal Balance	27,058	25,519
Total Impaired loans, Related Allowance	585
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	566	574
Impaired loans with no related allowance recorded, Unpaid Principal Balance	597	574
Total:
Total Impaired loans, Recorded Investment	566	574
Total Impaired loans, Unpaid Principal Balance	597	574
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded:
Impaired loans with no related allowance recorded, Recorded Investment	428	1,518
Impaired loans with no related allowance recorded, Unpaid Principal Balance	534	1,628
Total:
Total Impaired loans, Recorded Investment	428	1,518
Total Impaired loans, Unpaid Principal Balance	$ 534	$ 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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	$ 35,592	$ 27,813	$ 34,312	$ 27,949
Recognized Interest Income	304	169	1,028	581
Commercial Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	12,750	3,885	12,513	4,388
Recognized Interest Income	147	59	440	186
Commercial Real Estate Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	21,923	20,787	19,985	19,961
Recognized Interest Income	142	103	546	373
Construction Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment		1,934	306	2,076
Residential Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	403		652	108
Recognized Interest Income	9		23
Consumer Portfolio Segment [Member]
Note 4 - Loans and Allowance for Credit Losses (Details) - Impaired Loans, Supplemental Schedule [Line Items]
Average Recored Investment	516	1,207	856	1,416
Recognized Interest Income	$ 6	$ 7	$ 19	$ 22

Note 4 - Loans and Allowance 44

Note 4 - Loans and Allowance for Credit Losses (Details) - Troubled Debt Restructurings $ in Thousands	9 Months Ended
	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Financing Receivable, Modifications [Line Items]
Number of Contracts	14	10
Pre-Modification Carrying Value	$ 13,360	$ 6,237
Period-End Carrying Value	$ 12,880	5,907
Period-End Individual Impairment Allowance		$ 259
Commercial Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	6	6
Pre-Modification Carrying Value	$ 2,813	$ 3,465
Period-End Carrying Value	$ 2,517	3,109
Period-End Individual Impairment Allowance		$ 259
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	7	3
Pre-Modification Carrying Value	$ 10,305	$ 2,754
Period-End Carrying Value	$ 10,133	$ 2,787
Residential Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts	1
Pre-Modification Carrying Value	$ 242
Period-End Carrying Value	$ 230
Consumer Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts		1
Pre-Modification Carrying Value		$ 18
Period-End Carrying Value		$ 11

Note 5 - Concentration of Cre45

Note 5 - Concentration of Credit Risk (Details) - USD ($) $ in Thousands	Sep. 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%
Concentration Risk, Issuer Relationships	45
Concentration Risk, Aggregate Securities Amount (in Dollars)	$ 5,000
Loan Commitments Related to Real Estate Loans (in Dollars)	$ 60,848	$ 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, Issuer Relationships	38
Concentration Risk, Aggregate Securities Amount (in Dollars)	$ 5,000

Note 6 - Other Assets (Details)

Note 6 - Other Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 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	$ 15,934	$ 18,673
Qualified Affordable Housing Project Investments, Commitment	2,299
Contingent Commitment, Year 1 [Member]
Note 6 - Other Assets (Details) [Line Items]
Qualified Affordable Housing Project Investments, Commitment	453
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 (Details

Note 6 - Other Assets (Details) - Other Assets - USD ($) $ in Thousands		Sep. 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		48,335	46,479
Net deferred tax asset		47,046	50,903
Limited partnership investments		15,934	18,673
Interest receivable		18,637	19,394
Prepaid assets		4,309	5,609
Other assets		10,381	10,150
Total other assets		$ 158,912	$ 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 (Detai48

Note 6 - Other Assets (Details) - Amounts Recognized in Net Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Amounts Recognized in Net Income [Abstract]
Investment loss included in pre-tax income	$ 750	$ 750	$ 2,175	$ 2,200
Tax credits recognized in provision for income taxes	$ 663	$ 610	$ 1,988	$ 2,200

Note 7 - Goodwill and Identif49

Note 7 - Goodwill and Identifiable Intangible Assets (Details) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 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	Sep. 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	Sep. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 67,108	$ 67,108
Accumulated Amortization	(55,729)	(52,821)
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	56,808	56,808
Accumulated Amortization	(45,897)	(43,188)
Mechant Draft Processing [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,300	10,300
Accumulated Amortization	$ (9,832)	$ (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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Note 7 - Goodwill and Identifiable Intangible Assets (Details) - Estimated Future Amortization Expense for Identifiable Intangible Assets [Line Items]
Nine months ended September 30, 2015 (actual)	$ 952	$ 1,056	$ 2,908	$ 3,219
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]
Nine months ended September 30, 2015 (actual)			2,709
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]
Nine months ended September 30, 2015 (actual)			199
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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Note 8 - Deposits and Borrowed Funds (Details) [Line Items]
Demand Deposit Overdrafts	$ 2,753,000		$ 2,753,000		$ 3,173,000
Interest Expense, Time Deposits, $100,000 or More	164,000	$ 219,000	543,000	$ 683,000
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	Sep. 30, 2015	Dec. 31, 2014
Deposits Detail [Abstract]
Noninterest-bearing	$ 1,942,450	$ 1,910,781
Interest-bearing:
Transaction	812,940	792,448
Savings	1,310,985	1,260,819
Time deposits less than $100 thousand	156,503	169,959
Time deposits $100 thousand through $250 thousand	101,317	113,023
Time deposits more than $250 thousand	42,725	102,161
Total deposits	$ 4,366,920	$ 4,349,191

Note 8 - Deposits and Borrowe55

Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	$ 169,348	$ 148,014
Total short-term borrowed funds	57,063	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	110,541	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	3,975	14,251
Corporate Debt Securities [Member]
Note 8 - Deposits and Borrowed Funds (Details) - Short Term Borrowed Funds [Line Items]
Collateral Carrying Value	$ 54,832	$ 52,936

Note 9 - Fair Value Measureme56

Note 9 - Fair Value Measurements (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 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	30,036	$ 30,828	$ 31,485	$ 31,769	$ 32,398	$ 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	155		468
Purchased Non-Covered Loans [Member]
Note 9 - Fair Value Measurements (Details) [Line Items]
Loans and Leases Receivable, Allowance		$ 1,244	2,120	$ 2,574	$ 2,707	$ 0
Fair Value Discount, Credit Default Risk, Purchased Loans	$ 7,082		$ 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		Sep. 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		$ 1,571,710	$ 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		3,001	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		342,409	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		20,590	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		2,552	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		161,155	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		194,552	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		2,330	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]	6,500	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		835,839	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		2,782	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		3,935	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		3,001	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		924	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		1,567,775	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		342,409
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		20,590	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		2,552	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		161,155	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		194,552	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		2,330	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		6,490
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		835,839	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	Sep. 30, 2015	Dec. 31, 2014
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	$ 25,007	$ 23,459
Total losses	(764)	(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	9,269	6,374
Total losses	(315)	(358)
Impaired Loans [Member]
Note 9 - Fair Value Measurements (Details) - Assets Measured at Fair Value on a Nonrecurring Basis [Line Items]
Fair value	15,738	17,085
Total losses	(449)	(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	25,007	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	9,269
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	$ 15,738	$ 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 - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities held to maturity	$ 1,293,958	$ 1,048,562
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	268,587	380,836
Investment securities held to maturity	1,278,814	1,038,658
Loans	1,541,807	1,668,805
Financial Liabilities:
Deposits	4,366,920	4,349,191
Short-term borrowed funds	57,063	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	268,587	380,836
Investment securities held to maturity	1,293,958	1,048,562
Loans	1,554,908	1,685,048
Financial Liabilities:
Deposits	4,365,831	4,348,958
Short-term borrowed funds	57,063	89,784
Federal Home Loan Bank advances		20,014
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	268,587	380,836
Investment securities held to maturity		1,077
Financial Liabilities:
Federal Home Loan Bank advances		20,014
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities held to maturity	1,293,958	1,047,485
Financial Liabilities:
Deposits	4,066,375	3,964,048
Short-term borrowed funds	57,063	89,784
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans	1,554,908	1,685,048
Financial Liabilities:
Deposits	$ 299,456	$ 384,910

Note 10 - Commitments and Con60

Note 10 - Commitments and Contingent Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Unfunded Loan Commitments	$ 316,947	$ 312,694
Other Liabilities [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Reserve for Unfunded Commitments	2,593	2,693
Financial Standby Letter of Credit [Member]
Note 10 - Commitments and Contingent Liabilities (Details) [Line Items]
Letters of Credit Outstanding, Amount	27,117	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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 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	1,043	1,322	1,396	1,060

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		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Common Share and Diluted Earnings Per Common Share [Abstract]
Net income applicable to common equity (numerator) (in Dollars)	$ 14,857	$ 15,154	$ 44,175	$ 45,618
Basic earnings per common share
Weighted average number of common shares outstanding - basic	25,530	25,973	25,565	26,192
Add common stock equivalents for options	35	43	20	70
Weighted average number of common shares outstanding - diluted (denominator)	25,565	26,016	25,585	26,262
Diluted earnings per common share (in Dollars per share)	$ 0.58	$ 0.58	$ 1.73	$ 1.74
Basic earnings per common share (in Dollars per share)	$ 0.58	$ 0.58	$ 1.73	$ 1.74