ServisFirst Bancshares (SFBS) 10-Q 31 Jul 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document Information [Line Items]
Entity Registrant Name	ServisFirst Bancshares, Inc.
Entity Central Index Key	1,430,723
Trading Symbol	sfbs
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Common Stock, Shares Outstanding (in shares)		53,164,733
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false

Consolidated Balance Sheets (Cu

Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	[1]
ASSETS
Cash and due from banks	$ 68,344,000	$ 86,213,000
Interest-bearing balances due from depository institutions	81,742,000	151,849,000
Federal funds sold	15,585,000	239,524,000
Cash and cash equivalents	165,671,000	477,586,000
Available for sale debt securities, at fair value	583,549,000	538,080,000
Held to maturity debt securities (fair value of $250 at June 30, 2018 and December 31, 2017)	250,000	250,000
Equity securities	993,000	1,034,000
Mortgage loans held for sale	4,605,000	4,459,000
Loans	6,129,649,000	5,851,261,000
Less allowance for loan losses	(64,239,000)	(59,406,000)
Loans, net	6,065,410,000	5,791,855,000
Premises and equipment, net	58,299,000	58,900,000
Accrued interest and dividends receivable	21,375,000	20,661,000
Deferred tax assets	11,661,000	13,022,000
Other real estate owned and repossessed assets	5,937,000	6,701,000
Bank owned life insurance contracts	129,082,000	127,519,000
Goodwill and other identifiable intangible assets	14,584,000	14,719,000
Other assets	23,146,000	27,598,000
Total assets	7,084,562,000	7,082,384,000
Deposits:
Noninterest-bearing	1,481,447,000	1,440,326,000
Interest-bearing	4,604,235,000	4,651,348,000
Total deposits	6,085,682,000	6,091,674,000
Federal funds purchased	262,659,000	301,797,000
Other borrowings	64,648,000	64,832,000
Accrued interest payable	7,222,000	4,971,000
Other liabilities	9,237,000	11,506,000
Total liabilities	6,429,448,000	6,474,780,000
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 53,150,733 shares issued and outstanding at June 30, 2018, and 52,992,586 shares issued and outstanding at December 31, 2017	53,000	53,000
Additional paid-in capital	217,765,000	217,693,000
Retained earnings	443,972,000	389,554,000
Accumulated other comprehensive income	(7,178,000)	(198,000)
Total stockholders' equity attributable to ServisFirst Bancshares, Inc.	654,612,000	607,102,000
Noncontrolling interest	502,000	502,000
Total stockholders' equity	655,114,000	607,604,000
Total liabilities and stockholders' equity	7,084,562,000	7,082,384,000
Undesignated Preferred Stock [Member]
Stockholders' equity:
Preferred stock, par value $0.001 per share; 1,000,000 authorized and undesignated at June 30, 2018 and December 31, 2017
[1]	derived from audited financial statements

Consolidated Balance Sheets (C3

Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	[1]
Held to maturity debt securities, fair value	$ 250	$ 250
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	100,000,000	100,000,000
Common stock, issued (in shares)	53,150,733	52,992,586
Common stock, outstanding (in shares)	53,150,733	52,992,586
Undesignated Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, undesignated (in shares)	1,000,000	1,000,000
[1]	derived from audited financial statements

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income:
Interest and fees on loans	$ 73,620,000	$ 59,912,000	$ 143,294,000	$ 115,468,000
Taxable securities	3,127,000	2,274,000	5,872,000	4,361,000
Nontaxable securities	623,000	752,000	1,279,000	1,517,000
Federal funds sold	694,000	287,000	1,245,000	806,000
Other interest and dividends	332,000	313,000	715,000	903,000
Total interest income	78,396,000	63,538,000	152,405,000	123,055,000
Interest expense:
Deposits	11,714,000	6,321,000	21,335,000	12,303,000
Borrowed funds	2,160,000	1,650,000	4,112,000	3,133,000
Total interest expense	13,874,000	7,971,000	25,447,000	15,436,000
Net interest income	64,522,000	55,567,000	126,958,000	107,619,000
Provision for loan losses	4,121,000	4,381,000	8,260,000	9,367,000
Net interest income after provision for loan losses	60,401,000	51,186,000	118,698,000	98,252,000
Noninterest income:
Securities gains			4,000
Increase in cash surrender value life insurance	786,000	785,000	1,563,000	1,509,000
Other operating income	475,000	385,000	882,000	775,000
Total noninterest income	5,459,000	4,805,000	10,328,000	9,351,000
Noninterest expenses:
Salaries and employee benefits	13,098,000	12,031,000	26,394,000	23,744,000
Equipment and occupancy expense	2,113,000	2,265,000	4,067,000	4,505,000
Professional services	924,000	808,000	1,729,000	1,579,000
FDIC and other regulatory assessments	1,159,000	1,081,000	2,292,000	2,078,000
OREO expense	160,000	56,000	476,000	132,000
Other operating expenses	6,556,000	5,634,000	12,564,000	11,104,000
Total noninterest expenses	24,010,000	21,875,000	47,522,000	43,142,000
Income before income taxes	41,850,000	34,116,000	81,504,000	64,461,000
Provision for income taxes	8,310,000	9,952,000	15,361,000	17,778,000
Net income	33,540,000	24,164,000	66,143,000	46,683,000
Preferred stock dividends	31,000	31,000	31,000	31,000
Net income available to common stockholders	$ 33,509,000	$ 24,133,000	$ 66,112,000	$ 46,652,000
Basic earnings per common share (in dollars per share)	$ 0.63	$ 0.46	$ 1.24	$ 0.88
Diluted earnings per common share (in dollars per share)	$ 0.62	$ 0.45	$ 1.22	$ 0.86
Deposit Account [Member]
Noninterest income:
Noninterest income	$ 1,653,000	$ 1,382,000	$ 3,238,000	$ 2,736,000
Mortgage Banking [Member]
Noninterest income:
Noninterest income	789,000	1,064,000	1,307,000	1,963,000
Credit Card [Member]
Noninterest income:
Noninterest income	$ 1,756,000	$ 1,189,000	$ 3,334,000	$ 2,368,000

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income	$ 33,540,000	$ 24,164,000	$ 66,143,000	$ 46,683,000
Other comprehensive (loss) income, net of tax:
Unrealized holding (losses) gains arising during period from securities available for sale, net of (benefit) of $(553) and $(1,858) for the three and six months ended June 30, 2018, respectively, and tax of $201 and $736 for the three and six months ended June 30, 2017, respectively	(2,073,000)	374,000	(6,983,000)	1,367,000
Reclassification adjustment for gains on sale of securities, net of tax of $1 for the six months ended June 30, 2018			3,000
Other comprehensive (loss) income, net of tax	(2,073,000)	374,000	(6,980,000)	1,367,000
Comprehensive income	$ 31,467,000	$ 24,538,000	$ 59,163,000	$ 48,050,000

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Unrealized holding gain (loss) from available for sale securities, tax	$ (553)	$ 201	$ (1,858)	$ 736
Reclassification adjustment for net gain (loss) on sale of securities, tax			$ 1

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2016		$ 53,000	$ 215,932,000	$ 307,151,000	$ (624,000)	$ 377,000	$ 522,889,000
Common dividends paid				(2,641,000)			(2,641,000)
Common dividends declared				(2,645,000)			(2,645,000)
Preferred dividends paid				(31,000)			(31,000)
Issue shares of common stock upon exercise of stock options			717,000				717,000
Issue shares of REIT preferred stock						125,000	125,000
Stock-based compensation expense			622,000				622,000
Other comprehensive income, net of tax					1,367,000		1,367,000
Net income				46,683,000			46,683,000
Balance at Jun. 30, 2017		53,000	217,271,000	348,517,000	743,000	502,000	567,086,000
Balance at Dec. 31, 2017		53,000	217,693,000	389,554,000	(198,000)	502,000	607,604,000	[1]
Common dividends paid				(5,846,000)			(5,846,000)
Common dividends declared				(5,848,000)			(5,848,000)
Preferred dividends paid				(31,000)			(31,000)
Issue shares of common stock upon exercise of stock options			860,000				860,000
Stock-based compensation expense			482,000				482,000
Other comprehensive income, net of tax					(6,980,000)		(6,980,000)
Net income				66,143,000			66,143,000
30,539 shares of common stock withheld in net settlement upon exercise of stock options			(1,270)				(1,270)
Balance at Jun. 30, 2018		$ 53,000	$ 217,765,000	$ 443,972,000	$ (7,178,000)	$ 502,000	$ 655,114,000
[1]	derived from audited financial statements

Consolidated Statement of Stoc8

Consolidated Statement of Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Additional Paid-in Capital [Member]
Issuance of common stock, shares (in shares)	145,297	272,466
Shares withholed in net settlement upon exercise of stock options (in shares)	30,539
Noncontrolling Interest [Member]
Issuance of REIT preferred stock, shares (in shares)		125
Common dividends, per share (in dollars per share)	$ 0.11	$ 0.05
Common dividends, per share declared (in dollars per share)	$ 0.11	$ 0.05

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net income	$ 66,143,000	$ 46,683,000
Adjustments to reconcile net income to net cash provided by
Deferred tax expense	1,361,000	4,000
Provision for loan losses	8,260,000	9,367,000
Depreciation	1,679,000	1,501,000
Accretion on acquired loans	(125,000)	(267,000)
Amortization of core deposit intangible	135,000	141,000
Net amortization of debt securities available for sale	1,219,000	1,999,000
Increase in accrued interest and dividends receivable	(714,000)	(969,000)
Stock-based compensation expense	482,000	622,000
Increase (decrease) in accrued interest payable	2,251,000	(888,000)
Proceeds from sale of mortgage loans held for sale	55,342,000	71,518,000
Originations of mortgage loans held for sale	(54,181,000)	(70,553,000)
Gain on sale of debt securities available for sale	(4,000)
Gain on sale of mortgage loans held for sale	(1,307,000)	(1,963,000)
Net loss (gain) on sale of other real estate owned and repossessed assets	10,000	(53,000)
Write down of other real estate owned and repossessed assets	253,000	4,000
Operating losses of tax credit partnerships	70,000	7,000
Increase in cash surrender value of life insurance contracts	(1,563,000)	(1,509,000)
Net change in other assets, liabilities, and other operating activities	(2,238,000)	(9,379,000)
Net cash provided by operating activities	77,073,000	46,265,000
INVESTMENT ACTIVITIES
Purchase of debt securities available for sale	(100,718,000)	(60,627,000)
Proceeds from maturities, calls and paydowns of debt securities available for sale	40,484,000	45,325,000
Proceeds from sale of debt securities available for sale	5,100,000
Purchase of debt securities held to maturity		(20,786,000)
Proceeds from maturities, calls and paydowns of debt securities held to maturity		4,093,000
Purchase of equity securities		(10,000)
Proceeds from sale of equity securities	30,000
Increase in loans	(282,441,000)	(438,253,000)
Purchase of premises and equipment	(1,078,000)	(12,984,000)
Purchase of bank-owned life insurance contracts		(10,000,000)
Proceeds from sale of other real estate owned and repossessed assets	1,252,000	1,547,000
Net cash used in investing activities	(337,371,000)	(491,695,000)
FINANCING ACTIVITIES
Net increase in non-interest-bearing deposits	41,121,000	91,748,000
Net decrease in interest-bearing deposits	(47,113,000)	(117,249,000)
Net decrease in federal funds purchased	(39,138,000)	(55,718,000)
Repayment of Federal Home Loan Bank advances	(200,000)	(200,000)
Proceeds from sale of preferred stock, net		125,000
Proceeds from exercise of stock options	860,000	717,000
Taxes paid in net settlement of tax obligation upon exercise of stock options	(1,270,000)
Dividends paid on common stock	(5,846,000)	(2,641,000)
Dividends paid on preferred stock	(31,000)	(31,000)
Net cash used in financing activities	(51,617,000)	(83,249,000)
Net decrease in cash and cash equivalents	(311,915,000)	(528,679,000)
Cash and cash equivalents at beginning of period	477,586,000	783,997,000
Cash and cash equivalents at end of period	165,671,000	255,318,000
Cash paid for:
Interest	23,196,000	16,324,000
Income taxes	9,465,000	22,363,000
Income tax refund		(182,000)
NONCASH TRANSACTIONS
Other real estate acquired in settlement of loans	751,000	586,000
Internally financed sales of other real estate owned		185,000
Dividends declared	$ 5,848,000	$ 2,645,000

Note 1 - General

Note 1 - General	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	NOTE 1 The accompanying consolidated financial statements in this report have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission, including Regulation S- X 10 not not not may 10 December 31, 2017. All reported amounts are in thousands except share and per share data. Revenue Recognition Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers (“ASC 606” The majority of our revenue-generating transactions are excluded from the scope of ASC 606, 606, • Deposit account service charges – represent service fees for monthly activity and maintenance on customer accounts. Attributes can be transaction-based, item-based or time-based. Revenue is recognized when our performance obligation is completed which is generally monthly for maintenance services or when a transaction is processed. Payment for such performance obligations are generally received at the time the performance obligations are satisfied. • Credit card rewards program membership fees – represent memberships in our credit card rewards program and are paid annually by our cardholders at the time they open an account and on each anniversary. Revenue is recognized ratably over the membership period. Other non-interest income primarily includes income on bank owned life insurance contracts, letter of credit fees and gains on sale of loans held for sale, none 606.

Note 2 - Cash and Cash Equivale

Note 2 - Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Cash and Cash Equivalents Disclosure [Text Block]	NOTE 2 Cash on hand, cash items in process of collection, amounts due from banks, and federal funds sold are included in cash and cash equivalents.

Note 3 - Earnings Per Common Sh

Note 3 - Earnings Per Common Share	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 3 Basic earnings per common share are computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under stock options. Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 (In Thousands, Except Shares and Per Share Data) Earnings per common share Weighted average common shares outstanding 53,150,142 52,864,761 53,116,420 52,805,378 Net income available to common stockholders $ 33,509 $ 24,133 $ 66,112 $ 46,652 Basic earnings per common share $ 0.63 $ 0.46 $ 1.24 $ 0.88 Weighted average common shares outstanding 53,150,142 52,864,761 53,116,420 52,805,378 Dilutive effects of assumed conversions and exercise of stock options and warrants 1,045,881 1,235,843 1,073,326 1,311,694 Weighted average common and dilutive potential common shares outstanding 54,196,023 54,100,604 54,189,746 54,117,072 Net income available to common stockholders $ 33,509 $ 24,133 $ 66,112 $ 46,652 Diluted earnings per common share $ 0.62 $ 0.45 $ 1.22 $ 0.86

Note 4 - Securities

Note 4 - Securities	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	NOTE 4 The amortized cost and fair value of available-for-sale and held-to-maturity securities at June 30, 2018 December 31, 2017 Gross Gross Amortized Unrealized Unrealized Market Cost Gain Loss Value June 30, 2018: (In Thousands) Securities Available for Sale U.S. Treasury and government sponsored agencies $ 58,072 $ 4 $ (965 ) $ 57,111 Mortgage-backed securities 322,306 515 (8,390 ) 314,431 State and municipal securities 120,885 411 (765 ) 120,531 Corporate debt 91,412 730 (666 ) 91,476 Total 592,675 1,660 (10,786 ) 583,549 Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250 December 31, 2017: Securities Available for Sale U.S. Treasury and government sponsored agencies $ 55,567 $ 38 $ (249 ) $ 55,356 Mortgage-backed securities 278,177 1,006 (2,685 ) 276,498 State and municipal securities 134,641 761 (553 ) 134,849 Corporate debt 69,996 1,416 (35 ) 71,377 Total 538,381 3,221 (3,522 ) 538,080 Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250 The amortized cost and fair value of debt securities as of June 30, 2018 December 31, 2017 may may not June 30, 2018 December 31, 2017 Amortized Fair Value Amortized Fair Value (In thousands) Debt securities available for sale Due within one year $ 47,313 $ 47,336 $ 22,122 $ 22,172 Due from one to five years 202,998 201,448 160,773 160,563 Due from five to ten years 17,584 17,767 73,362 74,684 Due after ten years 2,474 2,567 3,947 4,163 Mortgage-backed securities 322,306 314,431 278,177 276,498 $ 592,675 $ 583,549 $ 538,381 $ 538,080 Debt securities held to maturity Due from one to five years $ 250 $ 250 $ 250 $ 250 $ 250 $ 250 $ 250 $ 250 All mortgage-backed securities are with government-sponsored enterprises (GSEs) such as Federal National Mortgage Association, Government National Mortgage Association, Federal Home Loan Bank, and Federal Home Loan Mortgage Corporation. The following table identifies, as of June 30, 2018 December 31, 2017, 12 12 June 30, 2018, 80 781 12 not not not may not June 30, 2018. not Less Than Twelve Months Twelve Months or More Total Gross Gross Gross Unrealized Unrealized Unrealized Losses Fair Value Losses Fair Value Losses Fair Value (In Thousands) June 30, 2018 U.S. Treasury and government sponsored agencies $ (809 ) $ 54,065 $ (156 ) $ 2,866 $ (965 ) $ 56,931 Mortgage-backed securities (5,255 ) 228,217 (3,135 ) 67,375 (8,390 ) 295,592 State and municipal securities (602 ) 66,356 (163 ) 7,872 (765 ) 74,228 Corporate debt (666 ) 39,738 - - (666 ) 39,738 Total $ (7,332 ) $ 388,376 $ (3,454 ) $ 78,113 $ (10,786 ) $ 466,489 December 31, 2017 U.S. Treasury and government sponsored agencies $ (151 ) $ 33,401 $ (98 ) $ 2,926 $ (249 ) $ 36,327 Mortgage-backed securities (986 ) 140,432 (1,699 ) 75,903 (2,685 ) 216,335 State and municipal securities (450 ) 66,637 (103 ) 6,648 (553 ) 73,285 Corporate debt (35 ) 6,955 - - (35 ) 6,955 Total $ (1,622 ) $ 247,425 $ (1,900 ) $ 85,477 $ (3,522 ) $ 332,902

Note 5 - Loans

Note 5 - Loans	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	NOTE 5 The following table details the Company’s loans at June 30, 2018 December 31, 2017: June 30, December 31, 2018 2017 (Dollars In Thousands) Commercial, financial and agricultural $ 2,345,879 $ 2,279,366 Real estate - construction 522,788 580,874 Real estate - mortgage: Owner-occupied commercial 1,383,882 1,328,666 1-4 family mortgage 584,133 603,063 Other mortgage 1,225,906 997,079 Subtotal: Real estate - mortgage 3,193,921 2,928,808 Consumer 67,061 62,213 Total Loans 6,129,649 5,851,261 Less: Allowance for loan losses (64,239 ) (59,406 ) Net Loans $ 6,065,410 $ 5,791,855 Commercial, financial and agricultural 38.27 % 38.96 % Real estate - construction 8.53 % 9.93 % Real estate - mortgage: Owner-occupied commercial 22.58 % 22.71 % 1-4 family mortgage 9.53 % 10.30 % Other mortgage 20.00 % 17.04 % Subtotal: Real estate - mortgage 52.11 % 50.05 % Consumer 1.09 % 1.06 % Total Loans 100.00 % 100.00 % The credit quality of the loan portfolio is summarized no • Pass – loans which are well protected by the current net worth and paying capacity of the obligor (or obligors, if any) or by the fair value, less cost to acquire and sell, of any underlying collateral. • Special Mention – loans with potential weakness that may, not not not • Substandard – loans that exhibit well-defined weakness or weaknesses that currently jeopardize debt repayment. These loans are characterized by the distinct possibility that the institution will sustain some loss if the weaknesses are not • Doubtful – loans that have all the weaknesses inherent in loans classified substandard, plus the added characteristic that the weaknesses make collection or liquidation in full on the basis of currently existing facts, conditions, and values highly questionable and improbable. Loans by credit quality indicator as of June 30, 2018 December 31, 2017 Special June 30, 2018 Pass Mention Substandard Doubtful Total (In Thousands) Commercial, financial and agricultural $ 2,289,789 $ 36,027 $ 20,063 $ - $ 2,345,879 Real estate - construction 515,543 5,664 1,581 - 522,788 Real estate - mortgage: Owner-occupied commercial 1,369,814 10,042 4,026 - 1,383,882 1-4 family mortgage 579,288 1,350 3,495 - 584,133 Other mortgage 1,203,952 15,497 6,457 - 1,225,906 Total real estate mortgage 3,153,054 26,889 13,978 - 3,193,921 Consumer 67,009 3 49 - 67,061 Total $ 6,025,395 $ 68,583 $ 35,671 $ - $ 6,129,649 Special December 31, 2017 Pass Mention Substandard Doubtful Total (In Thousands) Commercial, financial and agricultural $ 2,225,084 $ 27,835 $ 26,447 $ - $ 2,279,366 Real estate - construction 572,657 6,691 1,526 - 580,874 Real estate - mortgage: Owner-occupied commercial 1,317,113 7,333 4,220 - 1,328,666 1-4 family mortgage 598,222 1,599 3,242 - 603,063 Other mortgage 976,348 18,122 2,609 - 997,079 Total real estate mortgage 2,891,683 27,054 10,071 - 2,928,808 Consumer 62,083 42 88 - 62,213 Total $ 5,751,507 $ 61,622 $ 38,132 $ - $ 5,851,261 Loans by performance status as of June 30, 2018 December 31, 2017 June 30, 2018 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,338,563 $ 7,316 $ 2,345,879 Real estate - construction 522,788 - 522,788 Real estate - mortgage: Owner-occupied commercial 1,383,210 672 1,383,882 1-4 family mortgage 583,130 1,003 584,133 Other mortgage 1,220,835 5,071 1,225,906 Total real estate mortgage 3,187,175 6,746 3,193,921 Consumer 67,020 41 67,061 Total $ 6,115,546 $ 14,103 $ 6,129,649 December 31, 2017 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,269,642 $ 9,724 $ 2,279,366 Real estate - construction 580,874 - 580,874 Real estate - mortgage: Owner-occupied commercial 1,328,110 556 1,328,666 1-4 family mortgage 602,604 459 603,063 Other mortgage 997,079 - 997,079 Total real estate mortgage 2,927,793 1,015 2,928,808 Consumer 62,127 86 62,213 Total $ 5,840,436 $ 10,825 $ 5,851,261 Loans by past due status as of June 30, 2018 December 31, 2017 June 30, 2018 Past Due Status (Accruing Loans) Total Past 30-59 Days 60-89 Days 90+ Days Due Non-Accrual Current Total Loans (In Thousands) Commercial, financial and agricultural $ 7,259 $ 1,554 $ 431 $ 9,244 $ 6,885 $ 2,329,750 $ 2,345,879 Real estate - construction 2,097 3,182 - 5,279 - 517,509 522,788 Real estate - mortgage: Owner-occupied commercial 3,365 591 250 4,206 422 1,379,254 1,383,882 1-4 family mortgage 919 263 288 1,470 715 581,948 584,133 Other mortgage 1,203 12,941 5,071 19,215 - 1,206,691 1,225,906 Total real estate - mortgage 5,487 13,795 5,609 24,891 1,137 3,167,893 3,193,921 Consumer 316 49 41 406 - 66,655 67,061 Total $ 15,159 $ 18,580 $ 6,081 $ 39,820 $ 8,022 $ 6,081,807 $ 6,129,649 December 31, 2017 Past Due Status (Accruing Loans) Total Past 30-59 Days 60-89 Days 90+ Days Due Non-Accrual Current Total Loans (In Thousands) Commercial, financial and agricultural $ 1,410 $ 5,702 $ 12 $ 7,124 $ 9,712 $ 2,262,530 $ 2,279,366 Real estate - construction 56 997 - 1,053 - 579,821 580,874 Real estate - mortgage: Owner-occupied commercial - 3,664 - 3,664 556 1,324,446 1,328,666 1-4 family mortgage 430 850 - 1,280 459 601,324 603,063 Other mortgage 5,116 - - 5,116 - 991,963 997,079 Total real estate - mortgage 5,546 4,514 - 10,060 1,015 2,917,733 2,928,808 Consumer 131 23 48 202 38 61,973 62,213 Total $ 7,143 $ 11,236 $ 60 $ 18,439 $ 10,765 $ 5,822,057 $ 5,851,261 The allowance for loan losses is maintained at a level which, in management’s judgment, is adequate to absorb credit losses inherent in the loan portfolio. The amount of the allowance is based on management’s evaluation of the collectability of the loan portfolio, including the nature of the portfolio, credit concentrations, trends in historical loss experience, specific impaired loans, economic conditions and other risks inherent in the portfolio. Allowances for impaired loans are generally determined based on collateral values or the present value of the estimated cash flows. The allowance is increased by a provision for loan losses, which is charged to expense, and reduced by charge-offs, net of recoveries. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the allowance for losses on loans. Such agencies may The methodology utilized for the calculation of the allowance for loan losses is divided into four 450 310 Non-Impaired Loans. second 5 Impaired Loans. may may External Qualitative Factors three Internal Qualitative Factors The following table presents an analysis of the allowance for loan losses by portfolio segment and changes in the allowance for loan losses for the three six June 30, 2018 June 30, 2017. Commercial, financial and Real estate - Real estate - agricultural construction mortgage Consumer Total (In Thousands) Three Months Ended June 30, 2018 Allowance for loan losses: Balance at March 31, 2018 $ 35,787 $ 4,138 $ 21,606 $ 519 $ 62,050 Charge-offs (1,732 ) - (440 ) (47 ) (2,219 ) Recoveries 173 97 2 15 287 Provision 1,950 (173 ) 2,270 74 4,121 Balance at June 30, 2018 $ 36,178 $ 4,062 $ 23,438 $ 561 $ 64,239 Three Months Ended June 30, 2017 Allowance for loan losses: Balance at March 31, 2017 $ 28,707 $ 4,825 $ 19,962 $ 398 $ 53,892 Charge-offs (3,067 ) (40 ) (106 ) (33 ) (3,246 ) Recoveries 16 14 2 - 32 Provision 3,471 339 534 37 4,381 Balance at June 30, 2017 $ 29,127 $ 5,138 $ 20,392 $ 402 $ 55,059 Six Months Ended June 30, 2018 Allowance for loan losses: Balance at December 31, 2017 $ 32,880 $ 4,989 $ 21,022 $ 515 $ 59,406 Charge-offs (2,820 ) - (821 ) (135 ) (3,776 ) Recoveries 177 104 44 24 349 Provision 5,941 (1,031 ) 3,193 157 8,260 Balance at June 30, 2018 $ 36,178 $ 4,062 $ 23,438 $ 561 $ 64,239 Six Months Ended June 30, 2017 Allowance for loan losses: Balance at December 31, 2016 $ 28,872 $ 5,125 $ 17,504 $ 392 $ 51,893 Charge-offs (5,922 ) (40 ) (372 ) (108 ) (6,442 ) Recoveries 206 30 4 1 241 Provision 5,971 23 3,256 117 9,367 Balance at June 30, 2017 $ 29,127 $ 5,138 $ 20,392 $ 402 $ 55,059 As of June 30, 2018 Allowance for loan losses: Individually Evaluated for Impairment $ 5,423 $ 120 $ 285 $ 49 $ 5,877 Collectively Evaluated for Impairment 30,755 3,942 23,153 512 58,362 Loans: Ending Balance $ 2,345,879 $ 522,788 $ 3,193,921 $ 67,061 $ 6,129,649 Individually Evaluated for Impairment 20,063 1,623 16,240 49 37,975 Collectively Evaluated for Impairment 2,325,816 521,165 3,177,681 67,012 6,091,674 As of December 31, 2017 Allowance for loan losses: Individually Evaluated for Impairment $ 4,276 $ 120 $ 1,163 $ 50 $ 5,609 Collectively Evaluated for Impairment 28,604 4,869 19,859 465 53,797 Loans: Ending Balance $ 2,279,366 $ 580,874 $ 2,928,808 $ 62,213 $ 5,851,261 Individually Evaluated for Impairment 26,447 1,571 12,404 88 40,510 Collectively Evaluated for Impairment 2,252,919 579,303 2,916,404 62,125 5,810,751 The following table presents details of the Company’s impaired loans as of June 30, 2018 December 31, 2017, not For the three months For the six months ended June 30, ended June 30, June 30, 2018 2018 2018 Interest Interest Unpaid Average Income Average Income Recorded Principal Related Recorded Recognized Recorded Recognized Investment Balance Allowance Investment in Period Investment in Period (In Thousands) With no allowance recorded: Commercial, financial and agricultural $ 4,842 $ 5,733 $ - $ 5,257 $ 53 $ 5,611 $ 113 Real estate - construction 626 629 - 629 8 630 16 Real estate - mortgage: Owner-occupied commercial 2,512 2,679 - 2,836 42 2,910 86 1-4 family mortgage 2,258 2,258 - 2,255 23 2,255 48 Other mortgage 5,071 5,071 - 5,082 62 5,098 125 Total real estate - mortgage 9,841 10,008 - 10,173 127 10,263 259 Consumer - - - - - - - Total with no allowance recorded 15,309 16,370 - 16,059 188 16,504 388 With an allowance recorded: Commercial, financial and agricultural 15,221 22,044 5,423 15,200 121 15,542 245 Real estate - construction 997 997 120 997 14 997 28 Real estate - mortgage: Owner-occupied commercial 3,776 3,776 27 3,775 46 3,775 94 1-4 family mortgage 1,237 1,237 178 1,240 12 1,240 26 Other mortgage 1,386 1,386 80 1,540 16 1,700 36 Total real estate - mortgage 6,399 6,399 285 6,555 74 6,715 156 Consumer 49 49 49 49 1 49 1 Total with allowance recorded 22,666 29,489 5,877 22,801 210 23,303 430 Total Impaired Loans: Commercial, financial and agricultural 20,063 27,777 5,423 20,457 174 21,153 358 Real estate - construction 1,623 1,626 120 1,626 22 1,627 44 Real estate - mortgage: Owner-occupied commercial 6,288 6,455 27 6,611 88 6,685 180 1-4 family mortgage 3,495 3,495 178 3,495 35 3,495 74 Other mortgage 6,457 6,457 80 6,622 78 6,798 161 Total real estate - mortgage 16,240 16,407 285 16,728 201 16,978 415 Consumer 49 49 49 49 1 49 1 Total impaired loans $ 37,975 $ 45,859 $ 5,877 $ 38,860 $ 398 $ 39,807 $ 818 December 31, 2017 For the twelve months ended December 31, 2017 Unpaid Average Interest Income Recorded Principal Related Recorded Recognized in Investment Balance Allowance Investment Period (In Thousands) With no allowance recorded: Commercial, financial and agricultural $ 10,036 $ 16,639 $ - $ 16,417 $ 571 Real estate - construction 574 577 - 663 31 Real estate - mortgage: Owner-occupied commercial 2,640 2,806 - 2,875 159 1-4 family mortgage 2,262 2,262 - 2,289 93 Other mortgage 746 746 - 727 44 Total real estate - mortgage 5,648 5,814 - 5,891 296 Consumer 38 39 - 42 3 Total with no allowance recorded 16,296 23,069 - 23,013 901 With an allowance recorded: Commercial, financial and agricultural 16,411 16,992 4,276 17,912 651 Real estate - construction 997 997 120 997 56 Real estate - mortgage: Owner-occupied commercial 3,914 3,914 601 3,801 215 1-4 family mortgage 980 980 281 1,113 54 Other mortgage 1,862 1,862 281 1,862 80 Total real estate - mortgage 6,756 6,756 1,163 6,776 349 Consumer 50 50 50 42 3 Total with allowance recorded 24,214 24,795 5,609 25,727 1,059 Total Impaired Loans: Commercial, financial and agricultural 26,447 33,631 4,276 34,329 1,222 Real estate - construction 1,571 1,574 120 1,660 87 Real estate - mortgage: Owner-occupied commercial 6,554 6,720 601 6,676 374 1-4 family mortgage 3,242 3,242 281 3,402 147 Other mortgage 2,608 2,608 281 2,589 124 Total real estate - mortgage 12,404 12,570 1,163 12,667 645 Consumer 88 89 50 84 6 Total impaired loans $ 40,510 $ 47,864 $ 5,609 $ 48,740 $ 1,960 Troubled Debt Restructurings (“TDR”) at June 30, 2018, December 31, 2017 June 30, 2017 $17.3 $20.6 $16.4 June 30, 2018, $3.6 $4.3 December 31, 2017 $3.1 June 30, 2017. no three six June 30, 2018. three six June 30, 2017 Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Pre- Post- Pre- Post- Modification Modification Modification Modification Outstanding Outstanding Outstanding Outstanding Number of Recorded Recorded Number of Recorded Recorded Contracts Investment Investment Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 5 $ 7,205 $ 7,205 5 $ 7,205 $ 7,205 Real estate - construction 1 997 997 1 997 997 Real estate - mortgage: Owner-occupied commercial 2 3,664 3,664 2 3,664 3,664 1-4 family mortgage 1 850 850 1 850 850 Other mortgage - - - - - - Total real estate mortgage 3 4,514 4,514 3 4,514 4,514 Consumer - - - - - - 9 $ 12,716 $ 12,716 9 $ 12,716 $ 12,716 One commercial TDR loan totaling $0.3 twelve twelve three six June 30, 2018. No twelve three six June 30, 2017. 90 June 30, 2018,

Note 6 - Employee and Director

Note 6 - Employee and Director Benefits	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	NOTE 6 Stock Options At June 30, 2018, $244,000 $482,000 three six June 30, 2018 $285,000 $622,000 three six June 30, 2017. The Company’s 2005 6,150,000 2009 5,550,000 ten The Company estimates the fair value of each stock option award using a Black-Scholes-Merton valuation model that uses the assumptions noted in the following table. Expected volatility is based on historical volatilities of the Company’s common stock. The expected term for options granted is based on the short-cut method and represents the period of time that options granted are expected to be outstanding. The risk-free rate for periods within the contractual life of the option is based on the U. S. Treasury yield curve in effect at the time of grant. 2018 2017 Expected volatility 24.13 % 29.00 % Expected dividends 1.06 % 0.44 % Expected term (in years) 6.25 6.25 Risk-free rate 2.67 % 2.09 % The weighted average grant-date fair value of options granted during the six June 30, 2018 June 30, 2017 $10.95 $11.84, The following table summarizes stock option activity during the six June 30, 2018 June 30, 2017: Weighted Weighted Average Average Remaining Aggregate Exercise Contractual Intrinsic Shares Price Term (years) Value (In Thousands) Six Months Ended June 30, 2018: Outstanding at January 1, 2018 1,666,834 $ 10.68 5.5 $ 51,377 Granted 12,750 41.50 9.7 (9 ) Exercised (175,836 ) 4.90 3.1 6,317 Forfeited (6,000 ) 19.50 7.7 128 Outstanding at June 30, 2018 1,497,748 11.58 5.3 $ 43,787 Exercisable at June 30, 2018 748,600 $ 7.34 3.9 $ 25,811 Six Months Ended June 30, 2017: Outstanding at January 1, 2017 2,026,334 $ 9.00 6.2 $ 57,636 Granted 51,500 37.95 9.6 (80 ) Exercised (292,000 ) 4.98 4.4 9,169 Forfeited (32,000 ) 21.96 8.6 (462 ) Outstanding at June 30, 2017 1,753,834 10.28 5.9 $ 45,777 Exercisable at June 30, 2017 811,736 $ 5.20 4.4 $ 25,303 As of June 30, 2018, $1,695,000 2.4 Restricted Stock The Company periodically grants restricted stock awards that vest upon service conditions. Dividend payments are made during the vesting period. The value of restricted stock is determined to be the current value of the Company’s stock, and this total value will be recognized as compensation expense over the vesting period. As of June 30, 2018, $811,000 1.8 The following table summarizes restricted stock activity during the six June 30, 2018 2017, Shares Weighted Six Months Ended June 30, 2018: Non-vested at January 1, 2018 120,676 $ 10.29 Granted 11,850 41.29 Vested (61,700 ) 5.81 Forfeited - - Non-vested at June 30, 2018 70,826 19.38 Six Months Ended June 30, 2017: Non-vested at January 1, 2017 118,676 $ 8.88 Granted 6,000 38.16 Vested (4,200 ) 14.49 Forfeited (800 ) 15.74 Non-vested at June 30, 2017 119,676 9.94

Note 7 - Derivatives

Note 7 - Derivatives	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	NOTE 7 The Company has entered into agreements with secondary market investors to deliver loans on a “best efforts delivery” basis. When a rate is committed to a borrower, it is based on the best price that day and locked with the investor for the customer for a 30 not no June 30, 2018 December 31, 2017 not

Note 8 - Recently Adopted Accou

Note 8 - Recently Adopted Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	NOTE 8 In February 2018, 2018 02, Income Statement - Reporting Comprehensive Income 220 Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income 2017. December 15, 2018 December 31, 2017. $43,000 21% In May 2014, 2014 09, Revenue from Contracts with Customers (Topic 606 January 1, 2018. 2014 09 not not 2014 09. 2014 09, not not In January 2016, 2016 01, Financial Instruments Overall (Topic 825 2016 01: January 1, 2018. no 10

Note 9 - Recent Accounting Pron

Note 9 - Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Accounting Changes and Error Corrections [Text Block]	NOTE 9 In February 2016, 2016 02, Leases (Topic 842 December 15, 2018. January 2018, not 2016 02 June 30, 2018, not In June 2016, 2016 13, Financial Instruments-Credit Losses (Topic 326 December 15, 2019, December 15, 2018. third In March 2017, 2017 08, Receivables – Nonrefundable Fees and Other Costs (Subtopic 310 20 not December 15, 2018. not first In June 2018, 2018 07, Compensation – Stock Compensation (Topic 718 718, 505 50, December 15, 2018. no 606, January 1, 2019. not not

Note 10 - Fair Value Measuremen

Note 10 - Fair Value Measurement	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 10 Measurement of fair value under U.S. GAAP establishes a hierarchy that prioritizes observable and unobservable inputs used to measure fair value, as of the measurement date, into three Level 1: 1 Level 2: not Level 3: no 3 In determining fair value, the Company utilizes valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible and also considers counterparty credit risk in its assessment of fair value. Debt Securities 1 1 not may 2 1 2 not 3 Impaired Loans not not 820 10 3 $1,543,000 $3,888,000 three six June 30, 2018, $2,329,000 $5,307,000 three six June 30, 2017, Other Real Estate Owned and repossessed assets not 3 $99,000 $353,000 three six June 30, 2018, $83,000 $53,000 three six June 30, 2017, 3 There was one $176,000 June 30, 2018 none December 31, 2017. Management is negotiating a deed in lieu of a foreclosure related to a $360,000 June 30, 2018. The following table presents the Company’s financial assets and financial liabilities carried at fair value on a recurring basis as of June 30, 2018 December 31, 2017: Fair Value Measurements at June 30, 2018 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury and government agencies $ - $ 57,111 $ - $ 57,111 Mortgage-backed securities - 314,431 - 314,431 State and municipal securities - 120,531 - 120,531 Corporate debt - 84,951 6,525 91,476 Total assets at fair value $ - $ 577,024 $ 6,525 $ 583,549 Fair Value Measurements at December 31, 2017 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury and government agencies $ - $ 55,356 $ - $ 55,356 Mortgage-backed securities - 276,498 - 276,498 State and municipal securities - 134,849 - 134,849 Corporate debt - 64,877 6,500 71,377 Total assets at fair value $ - $ 531,580 $ 6,500 $ 538,080 The following table presents the Company’s financial assets and financial liabilities carried at fair value on a nonrecurring basis as of June 30, 2018 December 31, 2017: Fair Value Measurements at June 30, 2018 Quoted Prices in Significant Other Significant Total Assets Measured on a Nonrecurring Basis: (In Thousands) Impaired loans $ - $ - $ 32,098 $ 32,098 Other real estate owned and repossessed assets - - 5,937 5,937 Total assets at fair value $ - $ - $ 38,035 $ 38,035 Fair Value Measurements at December 31, 2017 Quoted Prices in Significant Other Significant Total Assets Measured on a Nonrecurring Basis: (In Thousands) Impaired loans $ - $ - $ 34,901 $ 34,901 Other real estate owned and repossessed assets - - 6,701 6,701 Total assets at fair value $ - $ - $ 41,602 $ 41,602 The fair value of a financial instrument is the current amount that would be exchanged in a sale between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no not may not may not The following methods and assumptions were used by the Company in estimating its fair value disclosures for financial instruments: Debt securities: 1 1 not may 2 1 2 not 3 Equity securities: 1 Mortgage loans held for sale: 30 Bank owned life insurance contracts: June 30, 2018 December 31, 2017 Carrying Carrying Amount Fair Value Amount Fair Value (In Thousands) Financial Assets: Level 1 Inputs: Cash and due from banks $ 150,086 $ 150,086 $ 238,062 $ 238,062 Level 2 inputs: Available for sale debt securities 577,024 577,024 531,580 531,580 Equity securities 993 993 1,034 1,034 Federal funds sold 15,585 15,585 239,524 239,524 Mortgage loans held for sale 4,605 4,605 4,459 4,459 Bank-owned life insurance contracts 129,082 129,082 127,519 127,519 Level 3 Inputs: Available for sale debt securities 6,525 6,525 6,500 6,500 Held to maturity debt securities 250 250 250 250 Loans, net 6,033,312 5,961,354 5,756,954 5,712,441 Financial liabilities: Level 2 inputs: Deposits $ 6,085,682 $ 6,078,286 $ 6,091,674 $ 6,086,085 Federal funds purchased 262,659 262,659 301,797 301,797 Other borrowings 64,648 65,677 64,832 65,921

Note 11 - Subsequent Events

Note 11 - Subsequent Events	6 Months Ended
	Jun. 30, 2018
Notes to Financial Statements
Subsequent Events [Text Block]	NOTE 11 The Company has evaluated all subsequent events through the date of this filing to ensure that this Form 10 June 30, 2018, June 30, 2018 not

Note 3 - Earnings Per Common 21

Note 3 - Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2018 2017 2018 2017 (In Thousands, Except Shares and Per Share Data) Earnings per common share Weighted average common shares outstanding 53,150,142 52,864,761 53,116,420 52,805,378 Net income available to common stockholders $ 33,509 $ 24,133 $ 66,112 $ 46,652 Basic earnings per common share $ 0.63 $ 0.46 $ 1.24 $ 0.88 Weighted average common shares outstanding 53,150,142 52,864,761 53,116,420 52,805,378 Dilutive effects of assumed conversions and exercise of stock options and warrants 1,045,881 1,235,843 1,073,326 1,311,694 Weighted average common and dilutive potential common shares outstanding 54,196,023 54,100,604 54,189,746 54,117,072 Net income available to common stockholders $ 33,509 $ 24,133 $ 66,112 $ 46,652 Diluted earnings per common share $ 0.62 $ 0.45 $ 1.22 $ 0.86

Note 4 - Securities (Tables)

Note 4 - Securities (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Unrealized Gain (Loss) on Investments [Table Text Block]	Gross Gross Amortized Unrealized Unrealized Market Cost Gain Loss Value June 30, 2018: (In Thousands) Securities Available for Sale U.S. Treasury and government sponsored agencies $ 58,072 $ 4 $ (965 ) $ 57,111 Mortgage-backed securities 322,306 515 (8,390 ) 314,431 State and municipal securities 120,885 411 (765 ) 120,531 Corporate debt 91,412 730 (666 ) 91,476 Total 592,675 1,660 (10,786 ) 583,549 Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250 December 31, 2017: Securities Available for Sale U.S. Treasury and government sponsored agencies $ 55,567 $ 38 $ (249 ) $ 55,356 Mortgage-backed securities 278,177 1,006 (2,685 ) 276,498 State and municipal securities 134,641 761 (553 ) 134,849 Corporate debt 69,996 1,416 (35 ) 71,377 Total 538,381 3,221 (3,522 ) 538,080 Securities Held to Maturity State and municipal securities 250 - - 250 Total $ 250 $ - $ - $ 250
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	June 30, 2018 December 31, 2017 Amortized Fair Value Amortized Fair Value (In thousands) Debt securities available for sale Due within one year $ 47,313 $ 47,336 $ 22,122 $ 22,172 Due from one to five years 202,998 201,448 160,773 160,563 Due from five to ten years 17,584 17,767 73,362 74,684 Due after ten years 2,474 2,567 3,947 4,163 Mortgage-backed securities 322,306 314,431 278,177 276,498 $ 592,675 $ 583,549 $ 538,381 $ 538,080 Debt securities held to maturity Due from one to five years $ 250 $ 250 $ 250 $ 250 $ 250 $ 250 $ 250 $ 250
Gain (Loss) on Securities [Table Text Block]	Less Than Twelve Months Twelve Months or More Total Gross Gross Gross Unrealized Unrealized Unrealized Losses Fair Value Losses Fair Value Losses Fair Value (In Thousands) June 30, 2018 U.S. Treasury and government sponsored agencies $ (809 ) $ 54,065 $ (156 ) $ 2,866 $ (965 ) $ 56,931 Mortgage-backed securities (5,255 ) 228,217 (3,135 ) 67,375 (8,390 ) 295,592 State and municipal securities (602 ) 66,356 (163 ) 7,872 (765 ) 74,228 Corporate debt (666 ) 39,738 - - (666 ) 39,738 Total $ (7,332 ) $ 388,376 $ (3,454 ) $ 78,113 $ (10,786 ) $ 466,489 December 31, 2017 U.S. Treasury and government sponsored agencies $ (151 ) $ 33,401 $ (98 ) $ 2,926 $ (249 ) $ 36,327 Mortgage-backed securities (986 ) 140,432 (1,699 ) 75,903 (2,685 ) 216,335 State and municipal securities (450 ) 66,637 (103 ) 6,648 (553 ) 73,285 Corporate debt (35 ) 6,955 - - (35 ) 6,955 Total $ (1,622 ) $ 247,425 $ (1,900 ) $ 85,477 $ (3,522 ) $ 332,902

Note 5 - Loans (Tables)

Note 5 - Loans (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	June 30, December 31, 2018 2017 (Dollars In Thousands) Commercial, financial and agricultural $ 2,345,879 $ 2,279,366 Real estate - construction 522,788 580,874 Real estate - mortgage: Owner-occupied commercial 1,383,882 1,328,666 1-4 family mortgage 584,133 603,063 Other mortgage 1,225,906 997,079 Subtotal: Real estate - mortgage 3,193,921 2,928,808 Consumer 67,061 62,213 Total Loans 6,129,649 5,851,261 Less: Allowance for loan losses (64,239 ) (59,406 ) Net Loans $ 6,065,410 $ 5,791,855 Commercial, financial and agricultural 38.27 % 38.96 % Real estate - construction 8.53 % 9.93 % Real estate - mortgage: Owner-occupied commercial 22.58 % 22.71 % 1-4 family mortgage 9.53 % 10.30 % Other mortgage 20.00 % 17.04 % Subtotal: Real estate - mortgage 52.11 % 50.05 % Consumer 1.09 % 1.06 % Total Loans 100.00 % 100.00 %
Financing Receivable Credit Quality Indicators [Table Text Block]	Special June 30, 2018 Pass Mention Substandard Doubtful Total (In Thousands) Commercial, financial and agricultural $ 2,289,789 $ 36,027 $ 20,063 $ - $ 2,345,879 Real estate - construction 515,543 5,664 1,581 - 522,788 Real estate - mortgage: Owner-occupied commercial 1,369,814 10,042 4,026 - 1,383,882 1-4 family mortgage 579,288 1,350 3,495 - 584,133 Other mortgage 1,203,952 15,497 6,457 - 1,225,906 Total real estate mortgage 3,153,054 26,889 13,978 - 3,193,921 Consumer 67,009 3 49 - 67,061 Total $ 6,025,395 $ 68,583 $ 35,671 $ - $ 6,129,649 Special December 31, 2017 Pass Mention Substandard Doubtful Total (In Thousands) Commercial, financial and agricultural $ 2,225,084 $ 27,835 $ 26,447 $ - $ 2,279,366 Real estate - construction 572,657 6,691 1,526 - 580,874 Real estate - mortgage: Owner-occupied commercial 1,317,113 7,333 4,220 - 1,328,666 1-4 family mortgage 598,222 1,599 3,242 - 603,063 Other mortgage 976,348 18,122 2,609 - 997,079 Total real estate mortgage 2,891,683 27,054 10,071 - 2,928,808 Consumer 62,083 42 88 - 62,213 Total $ 5,751,507 $ 61,622 $ 38,132 $ - $ 5,851,261
Financing Receivable, Credit Substitute, Credit Quality Indicator [Table Text Block]	June 30, 2018 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,338,563 $ 7,316 $ 2,345,879 Real estate - construction 522,788 - 522,788 Real estate - mortgage: Owner-occupied commercial 1,383,210 672 1,383,882 1-4 family mortgage 583,130 1,003 584,133 Other mortgage 1,220,835 5,071 1,225,906 Total real estate mortgage 3,187,175 6,746 3,193,921 Consumer 67,020 41 67,061 Total $ 6,115,546 $ 14,103 $ 6,129,649 December 31, 2017 Performing Nonperforming Total (In Thousands) Commercial, financial and agricultural $ 2,269,642 $ 9,724 $ 2,279,366 Real estate - construction 580,874 - 580,874 Real estate - mortgage: Owner-occupied commercial 1,328,110 556 1,328,666 1-4 family mortgage 602,604 459 603,063 Other mortgage 997,079 - 997,079 Total real estate mortgage 2,927,793 1,015 2,928,808 Consumer 62,127 86 62,213 Total $ 5,840,436 $ 10,825 $ 5,851,261
Past Due Financing Receivables [Table Text Block]	June 30, 2018 Past Due Status (Accruing Loans) Total Past 30-59 Days 60-89 Days 90+ Days Due Non-Accrual Current Total Loans (In Thousands) Commercial, financial and agricultural $ 7,259 $ 1,554 $ 431 $ 9,244 $ 6,885 $ 2,329,750 $ 2,345,879 Real estate - construction 2,097 3,182 - 5,279 - 517,509 522,788 Real estate - mortgage: Owner-occupied commercial 3,365 591 250 4,206 422 1,379,254 1,383,882 1-4 family mortgage 919 263 288 1,470 715 581,948 584,133 Other mortgage 1,203 12,941 5,071 19,215 - 1,206,691 1,225,906 Total real estate - mortgage 5,487 13,795 5,609 24,891 1,137 3,167,893 3,193,921 Consumer 316 49 41 406 - 66,655 67,061 Total $ 15,159 $ 18,580 $ 6,081 $ 39,820 $ 8,022 $ 6,081,807 $ 6,129,649 December 31, 2017 Past Due Status (Accruing Loans) Total Past 30-59 Days 60-89 Days 90+ Days Due Non-Accrual Current Total Loans (In Thousands) Commercial, financial and agricultural $ 1,410 $ 5,702 $ 12 $ 7,124 $ 9,712 $ 2,262,530 $ 2,279,366 Real estate - construction 56 997 - 1,053 - 579,821 580,874 Real estate - mortgage: Owner-occupied commercial - 3,664 - 3,664 556 1,324,446 1,328,666 1-4 family mortgage 430 850 - 1,280 459 601,324 603,063 Other mortgage 5,116 - - 5,116 - 991,963 997,079 Total real estate - mortgage 5,546 4,514 - 10,060 1,015 2,917,733 2,928,808 Consumer 131 23 48 202 38 61,973 62,213 Total $ 7,143 $ 11,236 $ 60 $ 18,439 $ 10,765 $ 5,822,057 $ 5,851,261
Allowance for Credit Losses on Financing Receivables [Table Text Block]	Commercial, financial and Real estate - Real estate - agricultural construction mortgage Consumer Total (In Thousands) Three Months Ended June 30, 2018 Allowance for loan losses: Balance at March 31, 2018 $ 35,787 $ 4,138 $ 21,606 $ 519 $ 62,050 Charge-offs (1,732 ) - (440 ) (47 ) (2,219 ) Recoveries 173 97 2 15 287 Provision 1,950 (173 ) 2,270 74 4,121 Balance at June 30, 2018 $ 36,178 $ 4,062 $ 23,438 $ 561 $ 64,239 Three Months Ended June 30, 2017 Allowance for loan losses: Balance at March 31, 2017 $ 28,707 $ 4,825 $ 19,962 $ 398 $ 53,892 Charge-offs (3,067 ) (40 ) (106 ) (33 ) (3,246 ) Recoveries 16 14 2 - 32 Provision 3,471 339 534 37 4,381 Balance at June 30, 2017 $ 29,127 $ 5,138 $ 20,392 $ 402 $ 55,059 Six Months Ended June 30, 2018 Allowance for loan losses: Balance at December 31, 2017 $ 32,880 $ 4,989 $ 21,022 $ 515 $ 59,406 Charge-offs (2,820 ) - (821 ) (135 ) (3,776 ) Recoveries 177 104 44 24 349 Provision 5,941 (1,031 ) 3,193 157 8,260 Balance at June 30, 2018 $ 36,178 $ 4,062 $ 23,438 $ 561 $ 64,239 Six Months Ended June 30, 2017 Allowance for loan losses: Balance at December 31, 2016 $ 28,872 $ 5,125 $ 17,504 $ 392 $ 51,893 Charge-offs (5,922 ) (40 ) (372 ) (108 ) (6,442 ) Recoveries 206 30 4 1 241 Provision 5,971 23 3,256 117 9,367 Balance at June 30, 2017 $ 29,127 $ 5,138 $ 20,392 $ 402 $ 55,059 As of June 30, 2018 Allowance for loan losses: Individually Evaluated for Impairment $ 5,423 $ 120 $ 285 $ 49 $ 5,877 Collectively Evaluated for Impairment 30,755 3,942 23,153 512 58,362 Loans: Ending Balance $ 2,345,879 $ 522,788 $ 3,193,921 $ 67,061 $ 6,129,649 Individually Evaluated for Impairment 20,063 1,623 16,240 49 37,975 Collectively Evaluated for Impairment 2,325,816 521,165 3,177,681 67,012 6,091,674 As of December 31, 2017 Allowance for loan losses: Individually Evaluated for Impairment $ 4,276 $ 120 $ 1,163 $ 50 $ 5,609 Collectively Evaluated for Impairment 28,604 4,869 19,859 465 53,797 Loans: Ending Balance $ 2,279,366 $ 580,874 $ 2,928,808 $ 62,213 $ 5,851,261 Individually Evaluated for Impairment 26,447 1,571 12,404 88 40,510 Collectively Evaluated for Impairment 2,252,919 579,303 2,916,404 62,125 5,810,751
Impaired Financing Receivables [Table Text Block]	For the three months For the six months ended June 30, ended June 30, June 30, 2018 2018 2018 Interest Interest Unpaid Average Income Average Income Recorded Principal Related Recorded Recognized Recorded Recognized Investment Balance Allowance Investment in Period Investment in Period (In Thousands) With no allowance recorded: Commercial, financial and agricultural $ 4,842 $ 5,733 $ - $ 5,257 $ 53 $ 5,611 $ 113 Real estate - construction 626 629 - 629 8 630 16 Real estate - mortgage: Owner-occupied commercial 2,512 2,679 - 2,836 42 2,910 86 1-4 family mortgage 2,258 2,258 - 2,255 23 2,255 48 Other mortgage 5,071 5,071 - 5,082 62 5,098 125 Total real estate - mortgage 9,841 10,008 - 10,173 127 10,263 259 Consumer - - - - - - - Total with no allowance recorded 15,309 16,370 - 16,059 188 16,504 388 With an allowance recorded: Commercial, financial and agricultural 15,221 22,044 5,423 15,200 121 15,542 245 Real estate - construction 997 997 120 997 14 997 28 Real estate - mortgage: Owner-occupied commercial 3,776 3,776 27 3,775 46 3,775 94 1-4 family mortgage 1,237 1,237 178 1,240 12 1,240 26 Other mortgage 1,386 1,386 80 1,540 16 1,700 36 Total real estate - mortgage 6,399 6,399 285 6,555 74 6,715 156 Consumer 49 49 49 49 1 49 1 Total with allowance recorded 22,666 29,489 5,877 22,801 210 23,303 430 Total Impaired Loans: Commercial, financial and agricultural 20,063 27,777 5,423 20,457 174 21,153 358 Real estate - construction 1,623 1,626 120 1,626 22 1,627 44 Real estate - mortgage: Owner-occupied commercial 6,288 6,455 27 6,611 88 6,685 180 1-4 family mortgage 3,495 3,495 178 3,495 35 3,495 74 Other mortgage 6,457 6,457 80 6,622 78 6,798 161 Total real estate - mortgage 16,240 16,407 285 16,728 201 16,978 415 Consumer 49 49 49 49 1 49 1 Total impaired loans $ 37,975 $ 45,859 $ 5,877 $ 38,860 $ 398 $ 39,807 $ 818 December 31, 2017 For the twelve months ended December 31, 2017 Unpaid Average Interest Income Recorded Principal Related Recorded Recognized in Investment Balance Allowance Investment Period (In Thousands) With no allowance recorded: Commercial, financial and agricultural $ 10,036 $ 16,639 $ - $ 16,417 $ 571 Real estate - construction 574 577 - 663 31 Real estate - mortgage: Owner-occupied commercial 2,640 2,806 - 2,875 159 1-4 family mortgage 2,262 2,262 - 2,289 93 Other mortgage 746 746 - 727 44 Total real estate - mortgage 5,648 5,814 - 5,891 296 Consumer 38 39 - 42 3 Total with no allowance recorded 16,296 23,069 - 23,013 901 With an allowance recorded: Commercial, financial and agricultural 16,411 16,992 4,276 17,912 651 Real estate - construction 997 997 120 997 56 Real estate - mortgage: Owner-occupied commercial 3,914 3,914 601 3,801 215 1-4 family mortgage 980 980 281 1,113 54 Other mortgage 1,862 1,862 281 1,862 80 Total real estate - mortgage 6,756 6,756 1,163 6,776 349 Consumer 50 50 50 42 3 Total with allowance recorded 24,214 24,795 5,609 25,727 1,059 Total Impaired Loans: Commercial, financial and agricultural 26,447 33,631 4,276 34,329 1,222 Real estate - construction 1,571 1,574 120 1,660 87 Real estate - mortgage: Owner-occupied commercial 6,554 6,720 601 6,676 374 1-4 family mortgage 3,242 3,242 281 3,402 147 Other mortgage 2,608 2,608 281 2,589 124 Total real estate - mortgage 12,404 12,570 1,163 12,667 645 Consumer 88 89 50 84 6 Total impaired loans $ 40,510 $ 47,864 $ 5,609 $ 48,740 $ 1,960
Troubled Debt Restructurings on Financing Receivables [Table Text Block]	Three Months Ended June 30, 2017 Six Months Ended June 30, 2017 Pre- Post- Pre- Post- Modification Modification Modification Modification Outstanding Outstanding Outstanding Outstanding Number of Recorded Recorded Number of Recorded Recorded Contracts Investment Investment Contracts Investment Investment (In Thousands) Troubled Debt Restructurings Commercial, financial and agricultural 5 $ 7,205 $ 7,205 5 $ 7,205 $ 7,205 Real estate - construction 1 997 997 1 997 997 Real estate - mortgage: Owner-occupied commercial 2 3,664 3,664 2 3,664 3,664 1-4 family mortgage 1 850 850 1 850 850 Other mortgage - - - - - - Total real estate mortgage 3 4,514 4,514 3 4,514 4,514 Consumer - - - - - - 9 $ 12,716 $ 12,716 9 $ 12,716 $ 12,716

Note 6 - Employee and Directo24

Note 6 - Employee and Director Benefits (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	2018 2017 Expected volatility 24.13 % 29.00 % Expected dividends 1.06 % 0.44 % Expected term (in years) 6.25 6.25 Risk-free rate 2.67 % 2.09 %
Share-based Compensation, Stock Options, Activity [Table Text Block]	Weighted Weighted Average Average Remaining Aggregate Exercise Contractual Intrinsic Shares Price Term (years) Value (In Thousands) Six Months Ended June 30, 2018: Outstanding at January 1, 2018 1,666,834 $ 10.68 5.5 $ 51,377 Granted 12,750 41.50 9.7 (9 ) Exercised (175,836 ) 4.90 3.1 6,317 Forfeited (6,000 ) 19.50 7.7 128 Outstanding at June 30, 2018 1,497,748 11.58 5.3 $ 43,787 Exercisable at June 30, 2018 748,600 $ 7.34 3.9 $ 25,811 Six Months Ended June 30, 2017: Outstanding at January 1, 2017 2,026,334 $ 9.00 6.2 $ 57,636 Granted 51,500 37.95 9.6 (80 ) Exercised (292,000 ) 4.98 4.4 9,169 Forfeited (32,000 ) 21.96 8.6 (462 ) Outstanding at June 30, 2017 1,753,834 10.28 5.9 $ 45,777 Exercisable at June 30, 2017 811,736 $ 5.20 4.4 $ 25,303
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]	Shares Weighted Six Months Ended June 30, 2018: Non-vested at January 1, 2018 120,676 $ 10.29 Granted 11,850 41.29 Vested (61,700 ) 5.81 Forfeited - - Non-vested at June 30, 2018 70,826 19.38 Six Months Ended June 30, 2017: Non-vested at January 1, 2017 118,676 $ 8.88 Granted 6,000 38.16 Vested (4,200 ) 14.49 Forfeited (800 ) 15.74 Non-vested at June 30, 2017 119,676 9.94

Note 10 - Fair Value Measurem25

Note 10 - Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2018
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	Fair Value Measurements at June 30, 2018 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury and government agencies $ - $ 57,111 $ - $ 57,111 Mortgage-backed securities - 314,431 - 314,431 State and municipal securities - 120,531 - 120,531 Corporate debt - 84,951 6,525 91,476 Total assets at fair value $ - $ 577,024 $ 6,525 $ 583,549 Fair Value Measurements at December 31, 2017 Using Quoted Prices in Active Markets Significant Other Significant for Identical Observable Inputs Unobservable Assets (Level 1) (Level 2) Inputs (Level 3) Total Assets Measured on a Recurring Basis: (In Thousands) Available-for-sale debt securities: U.S. Treasury and government agencies $ - $ 55,356 $ - $ 55,356 Mortgage-backed securities - 276,498 - 276,498 State and municipal securities - 134,849 - 134,849 Corporate debt - 64,877 6,500 71,377 Total assets at fair value $ - $ 531,580 $ 6,500 $ 538,080
Fair Value Measurements, Nonrecurring [Table Text Block]	Fair Value Measurements at June 30, 2018 Quoted Prices in Significant Other Significant Total Assets Measured on a Nonrecurring Basis: (In Thousands) Impaired loans $ - $ - $ 32,098 $ 32,098 Other real estate owned and repossessed assets - - 5,937 5,937 Total assets at fair value $ - $ - $ 38,035 $ 38,035 Fair Value Measurements at December 31, 2017 Quoted Prices in Significant Other Significant Total Assets Measured on a Nonrecurring Basis: (In Thousands) Impaired loans $ - $ - $ 34,901 $ 34,901 Other real estate owned and repossessed assets - - 6,701 6,701 Total assets at fair value $ - $ - $ 41,602 $ 41,602
Fair Value, by Balance Sheet Grouping [Table Text Block]	June 30, 2018 December 31, 2017 Carrying Carrying Amount Fair Value Amount Fair Value (In Thousands) Financial Assets: Level 1 Inputs: Cash and due from banks $ 150,086 $ 150,086 $ 238,062 $ 238,062 Level 2 inputs: Available for sale debt securities 577,024 577,024 531,580 531,580 Equity securities 993 993 1,034 1,034 Federal funds sold 15,585 15,585 239,524 239,524 Mortgage loans held for sale 4,605 4,605 4,459 4,459 Bank-owned life insurance contracts 129,082 129,082 127,519 127,519 Level 3 Inputs: Available for sale debt securities 6,525 6,525 6,500 6,500 Held to maturity debt securities 250 250 250 250 Loans, net 6,033,312 5,961,354 5,756,954 5,712,441 Financial liabilities: Level 2 inputs: Deposits $ 6,085,682 $ 6,078,286 $ 6,091,674 $ 6,086,085 Federal funds purchased 262,659 262,659 301,797 301,797 Other borrowings 64,648 65,677 64,832 65,921

Note 3 - Earnings Per Common 26

Note 3 - Earnings Per Common Share - Summary of Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Weighted average common shares outstanding (in shares)	53,150,142	52,864,761	53,116,420	52,805,378
Net income available to common stockholders	$ 33,509	$ 24,133	$ 66,112	$ 46,652
Basic earnings per common share (in dollars per share)	$ 0.63	$ 0.46	$ 1.24	$ 0.88
Dilutive effects of assumed conversions and exercise of stock options and warrants (in shares)	1,045,881	1,235,843	1,073,326	1,311,694
Weighted average common and dilutive potential common shares outstanding (in shares)	54,196,023	54,100,604	54,189,746	54,117,072
Net income available to common stockholders	$ 33,509	$ 24,133	$ 66,112	$ 46,652
Diluted earnings per common share (in dollars per share)	$ 0.62	$ 0.45	$ 1.22	$ 0.86

Note 4 - Securities (Details Te

Note 4 - Securities (Details Textual) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	80
Available for Sale Securities Debt Securities, Number of Positions	781
Other than Temporary Impairment Losses, Investments, Available-for-sale Securities, Total	$ 0

Note 4 - Securities - Amortized

Note 4 - Securities - Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale, amortized cost	$ 592,675	$ 538,381
Available for sale, gross unrealized gain	1,660	3,221
Available for sale, gross unrealized loss	(10,786)	(3,522)
Available for sale, fair value	583,549	538,080
Held to maturity, amortized cost	250	250
Held to maturity, gross unrealized gain
Held to maturity, gross unrealized loss
Held to maturity debt securities, fair value	250	250	[1]
Held to maturity, gross unrealized loss
US Treasury and Government [Member]
Available for sale, amortized cost	58,072	55,567
Available for sale, gross unrealized gain	4	38
Available for sale, gross unrealized loss	(965)	(249)
Available for sale, fair value	57,111	55,356
Collateralized Mortgage Backed Securities [Member]
Available for sale, amortized cost	322,306	278,177
Available for sale, gross unrealized gain	515	1,006
Available for sale, gross unrealized loss	(8,390)	(2,685)
Available for sale, fair value	314,431	276,498
US States and Political Subdivisions Debt Securities [Member]
Available for sale, amortized cost	120,885	134,641
Available for sale, gross unrealized gain	411	761
Available for sale, gross unrealized loss	(765)	(553)
Available for sale, fair value	120,531	134,849
Held to maturity, amortized cost	250	250
Held to maturity, gross unrealized gain
Held to maturity, gross unrealized loss
Held to maturity debt securities, fair value	250	250
Held to maturity, gross unrealized loss
Corporate Debt Securities [Member]
Available for sale, amortized cost	91,412	69,996
Available for sale, gross unrealized gain	730	1,416
Available for sale, gross unrealized loss	(666)	(35)
Available for sale, fair value	$ 91,476	$ 71,377
[1]	derived from audited financial statements

Note 4 - Securities - Amortiz29

Note 4 - Securities - Amortized Cost and Fair Value of Contractual Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale, amortized cost	$ 592,675	$ 538,381
Available for sale, fair value	583,549	538,080
Held to maturity, amortized cost	250	250
Held to maturity debt securities, fair value	250	250	[1]
Due Within One Year [Member]
Available for sale, amortized cost	47,313	22,122
Available for sale, fair value	47,336	22,172
Due from One to Five Years [Member]
Available for sale, amortized cost	202,998	160,773
Available for sale, fair value	201,448	160,563
Held to maturity, amortized cost	250	250
Held to maturity debt securities, fair value	250	250
Due from Five to Ten Years [Member]
Available for sale, amortized cost	17,584	73,362
Available for sale, fair value	17,767	74,684
Due After Ten Years [Member]
Available for sale, amortized cost	2,474	3,947
Available for sale, fair value	2,567	4,163
Collateralized Mortgage Backed Securities [Member]
Available for sale, amortized cost	322,306	278,177
Available for sale, fair value	$ 314,431	$ 276,498
[1]	derived from audited financial statements

Note 4 - Securities - Investmen

Note 4 - Securities - Investment Securities Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Less Than Twelve Months, Gross Unrealized Losses	$ (7,332)	$ (1,622)
Less Than Twelve Months, Fair Value	388,376	247,425
Twelve Months or More, Gross Unrealized Losses	(3,454)	(1,900)
Twelve Months or More, Fair Value	78,113	85,477
Total, Gross Unrealized Losses	(10,786)	(3,522)
Total, Fair Value	466,489	332,902
US Treasury and Government [Member]
Less Than Twelve Months, Gross Unrealized Losses	(809)	(151)
Less Than Twelve Months, Fair Value	54,065	33,401
Twelve Months or More, Gross Unrealized Losses	(156)	(98)
Twelve Months or More, Fair Value	2,866	2,926
Total, Gross Unrealized Losses	(965)	(249)
Total, Fair Value	56,931	36,327
Collateralized Mortgage Backed Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(5,255)	(986)
Less Than Twelve Months, Fair Value	228,217	140,432
Twelve Months or More, Gross Unrealized Losses	(3,135)	(1,699)
Twelve Months or More, Fair Value	67,375	75,903
Total, Gross Unrealized Losses	(8,390)	(2,685)
Total, Fair Value	295,592	216,335
US States and Political Subdivisions Debt Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(602)	(450)
Less Than Twelve Months, Fair Value	66,356	66,637
Twelve Months or More, Gross Unrealized Losses	(163)	(103)
Twelve Months or More, Fair Value	7,872	6,648
Total, Gross Unrealized Losses	(765)	(553)
Total, Fair Value	74,228	73,285
Corporate Debt Securities [Member]
Less Than Twelve Months, Gross Unrealized Losses	(666)	(35)
Less Than Twelve Months, Fair Value	39,738	6,955
Twelve Months or More, Gross Unrealized Losses
Twelve Months or More, Fair Value
Total, Gross Unrealized Losses	(666)	(35)
Total, Fair Value	$ 39,738	$ 6,955

Note 5 - Loans (Details Textual

Note 5 - Loans (Details Textual) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)
Financing Receivable, Modifications, Recorded Investment	$ 17.3	$ 16.4	$ 17.3	$ 16.4	$ 20.6
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down			$ 3.6	$ 3.1	$ 4.3
Financing Receivable, Modifications, Number of Contracts	0	9	0	9
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	300,000	0	300,000	0

Note 5 - Loans - Summary of Loa

Note 5 - Loans - Summary of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017		Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing receivable, gross	$ 6,129,649		$ 5,851,261
Less allowance for loan losses	(64,239)	$ (62,050)	(59,406)	[1]	$ (55,059)	$ (53,892)	$ (51,893)
Net Loans	$ 6,065,410		$ 5,791,855	[1]
Financing receivable, gross, percentage	100.00%		100.00%
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	$ 2,345,879		$ 2,279,366
Less allowance for loan losses	$ (36,178)	(35,787)	$ (32,880)		(29,127)	(28,707)	(28,872)
Financing receivable, gross, percentage	38.27%		38.96%
Real Estate Portfolio Segment[Member]
Financing receivable, gross	$ 3,193,921		$ 2,928,808
Financing receivable, gross, percentage	52.11%		50.05%
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	$ 522,788		$ 580,874
Less allowance for loan losses	$ (4,062)	(4,138)	$ (4,989)		(5,138)	(4,825)	(5,125)
Financing receivable, gross, percentage	8.53%		9.93%
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	$ 1,383,882		$ 1,328,666
Financing receivable, gross, percentage	22.58%		22.71%
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	$ 584,133		$ 603,063
Financing receivable, gross, percentage	9.53%		10.30%
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	$ 1,225,906		$ 997,079
Financing receivable, gross, percentage	20.00%		17.04%
Consumer Portfolio Segment [Member]
Financing receivable, gross	$ 67,061		$ 62,213
Less allowance for loan losses	$ (561)	$ (519)	$ (515)		$ (402)	$ (398)	$ (392)
Financing receivable, gross, percentage	1.09%		1.06%
[1]	derived from audited financial statements

Note 5 - Loans - Loans by Credi

Note 5 - Loans - Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing receivable, gross	$ 6,129,649	$ 5,851,261
Pass [Member]
Financing receivable, gross	6,025,395	5,751,507
Special Mention [Member]
Financing receivable, gross	68,583	61,622
Substandard [Member]
Financing receivable, gross	35,671	38,132
Doubtful [Member]
Financing receivable, gross
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	2,345,879	2,279,366
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Financing receivable, gross	2,289,789	2,225,084
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing receivable, gross	36,027	27,835
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing receivable, gross	20,063	26,447
Commercial Real Estate Portfolio Segment [Member] | Doubtful [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member]
Financing receivable, gross	3,193,921	2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	522,788	580,874
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,383,882	1,328,666
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	584,133	603,063
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	1,225,906	997,079
Real Estate Portfolio Segment[Member] | Pass [Member]
Financing receivable, gross	3,153,054	2,891,683
Real Estate Portfolio Segment[Member] | Pass [Member] | Construction Loans [Member]
Financing receivable, gross	515,543	572,657
Real Estate Portfolio Segment[Member] | Pass [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,369,814	1,317,113
Real Estate Portfolio Segment[Member] | Pass [Member] | One to Four Family [Member]
Financing receivable, gross	579,288	598,222
Real Estate Portfolio Segment[Member] | Pass [Member] | Other Mortgages [Member]
Financing receivable, gross	1,203,952	976,348
Real Estate Portfolio Segment[Member] | Special Mention [Member]
Financing receivable, gross	26,889	27,054
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Construction Loans [Member]
Financing receivable, gross	5,664	6,691
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	10,042	7,333
Real Estate Portfolio Segment[Member] | Special Mention [Member] | One to Four Family [Member]
Financing receivable, gross	1,350	1,599
Real Estate Portfolio Segment[Member] | Special Mention [Member] | Other Mortgages [Member]
Financing receivable, gross	15,497	18,122
Real Estate Portfolio Segment[Member] | Substandard [Member]
Financing receivable, gross	13,978	10,071
Real Estate Portfolio Segment[Member] | Substandard [Member] | Construction Loans [Member]
Financing receivable, gross	1,581	1,526
Real Estate Portfolio Segment[Member] | Substandard [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	4,026	4,220
Real Estate Portfolio Segment[Member] | Substandard [Member] | One to Four Family [Member]
Financing receivable, gross	3,495	3,242
Real Estate Portfolio Segment[Member] | Substandard [Member] | Other Mortgages [Member]
Financing receivable, gross	6,457	2,609
Real Estate Portfolio Segment[Member] | Doubtful [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Construction Loans [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | One to Four Family [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Doubtful [Member] | Other Mortgages [Member]
Financing receivable, gross
Consumer Portfolio Segment [Member]
Financing receivable, gross	67,061	62,213
Consumer Portfolio Segment [Member] | Pass [Member]
Financing receivable, gross	67,009	62,083
Consumer Portfolio Segment [Member] | Special Mention [Member]
Financing receivable, gross	3	42
Consumer Portfolio Segment [Member] | Substandard [Member]
Financing receivable, gross	49	88
Consumer Portfolio Segment [Member] | Doubtful [Member]
Financing receivable, gross

Note 5 - Loans - Loans by Perfo

Note 5 - Loans - Loans by Performance Status (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing receivable, gross	$ 6,129,649	$ 5,851,261
Performing Financial Instruments [Member]
Financing receivable, gross	6,115,546	5,840,436
Nonperforming Financial Instruments [Member]
Financing receivable, gross	14,103	10,825
Commercial Real Estate Portfolio Segment [Member]
Financing receivable, gross	2,345,879	2,279,366
Commercial Real Estate Portfolio Segment [Member] | Performing Financial Instruments [Member]
Financing receivable, gross	2,338,563	2,269,642
Commercial Real Estate Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	7,316	9,724
Real Estate Portfolio Segment[Member]
Financing receivable, gross	3,193,921	2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Financing receivable, gross	522,788	580,874
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,383,882	1,328,666
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Financing receivable, gross	584,133	603,063
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Financing receivable, gross	1,225,906	997,079
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member]
Financing receivable, gross	3,187,175	2,927,793
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Construction Loans [Member]
Financing receivable, gross	522,788	580,874
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	1,383,210	1,328,110
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | One to Four Family [Member]
Financing receivable, gross	583,130	602,604
Real Estate Portfolio Segment[Member] | Performing Financial Instruments [Member] | Other Mortgages [Member]
Financing receivable, gross	1,220,835	997,079
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	6,746	1,015
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Construction Loans [Member]
Financing receivable, gross
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Owner Occupied Commercial [Member]
Financing receivable, gross	672	556
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | One to Four Family [Member]
Financing receivable, gross	1,003	459
Real Estate Portfolio Segment[Member] | Nonperforming Financial Instruments [Member] | Other Mortgages [Member]
Financing receivable, gross	5,071
Consumer Portfolio Segment [Member]
Financing receivable, gross	67,061	62,213
Consumer Portfolio Segment [Member] | Performing Financial Instruments [Member]
Financing receivable, gross	67,020	62,127
Consumer Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Financing receivable, gross	$ 41	$ 86

Note 5 - Loans - Loans Categori

Note 5 - Loans - Loans Categorized by Past Due Status (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accrual loans, past due	$ 39,820	$ 18,439
Non-accrual	8,022	10,765
Current	6,081,807	5,822,057
Loans	6,129,649	5,851,261	[1]
Financing Receivables, 30 to 59 Days Past Due [Member]
Accrual loans, past due	15,159	7,143
Financing Receivables, 60 to 89 Days Past Due [Member]
Accrual loans, past due	18,580	11,236
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accrual loans, past due	6,081	60
Commercial Real Estate Portfolio Segment [Member]
Accrual loans, past due	9,244	7,124
Non-accrual	6,885	9,712
Current	2,329,750	2,262,530
Loans	2,345,879	2,279,366
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accrual loans, past due	7,259	1,410
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accrual loans, past due	1,554	5,702
Commercial Real Estate Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accrual loans, past due	431	12
Real Estate Portfolio Segment[Member]
Accrual loans, past due	24,891	10,060
Non-accrual	1,137	1,015
Current	3,167,893	2,917,733
Loans	3,193,921	2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Accrual loans, past due	5,279	1,053
Non-accrual
Current	517,509	579,821
Loans	522,788	580,874
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Accrual loans, past due	4,206	3,664
Non-accrual	422	556
Current	1,379,254	1,324,446
Loans	1,383,882	1,328,666
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Accrual loans, past due	1,470	1,280
Non-accrual	715	459
Current	581,948	601,324
Loans	584,133	603,063
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Accrual loans, past due	19,215	5,116
Non-accrual
Current	1,206,691	991,963
Loans	1,225,906	997,079
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accrual loans, past due	5,487	5,546
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Accrual loans, past due	2,097	56
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Owner Occupied Commercial [Member]
Accrual loans, past due	3,365
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | One to Four Family [Member]
Accrual loans, past due	919	430
Real Estate Portfolio Segment[Member] | Financing Receivables, 30 to 59 Days Past Due [Member] | Other Mortgages [Member]
Accrual loans, past due	1,203	5,116
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accrual loans, past due	13,795	4,514
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Accrual loans, past due	3,182	997
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Owner Occupied Commercial [Member]
Accrual loans, past due	591	3,664
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | One to Four Family [Member]
Accrual loans, past due	263	850
Real Estate Portfolio Segment[Member] | Financing Receivables, 60 to 89 Days Past Due [Member] | Other Mortgages [Member]
Accrual loans, past due	12,941
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accrual loans, past due	5,609
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Accrual loans, past due
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Owner Occupied Commercial [Member]
Accrual loans, past due	250
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | One to Four Family [Member]
Accrual loans, past due	288
Real Estate Portfolio Segment[Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member] | Other Mortgages [Member]
Accrual loans, past due	5,071
Consumer Portfolio Segment [Member]
Accrual loans, past due	406	202
Non-accrual		38
Current	66,655	61,973
Loans	67,061	62,213
Consumer Portfolio Segment [Member] | Financing Receivables, 30 to 59 Days Past Due [Member]
Accrual loans, past due	316	131
Consumer Portfolio Segment [Member] | Financing Receivables, 60 to 89 Days Past Due [Member]
Accrual loans, past due	49	23
Consumer Portfolio Segment [Member] | Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Accrual loans, past due	$ 41	$ 48
[1]	derived from audited financial statements

Note 5 - Loans - Analysis of Al

Note 5 - Loans - Analysis of Allowance for Loans Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018		Jun. 30, 2017	Dec. 31, 2017
Balance, beginning of period	$ 62,050	$ 53,892	$ 59,406	[1]	$ 51,893
Charge-offs	(2,219)	(3,246)	(3,776)		(6,442)
Recoveries	287	32	349		241
Provision	4,121	4,381	8,260		9,367
Balance, end of period	64,239	55,059	64,239		55,059
Individually Evaluated for Impairment	5,877		5,877			$ 5,609
Collectively Evaluated for Impairment	58,362		58,362			53,797
Ending Balance	6,129,649		6,129,649			5,851,261	[1]
Individually Evaluated for Impairment	37,975		37,975			40,510
Collectively Evaluated for Impairment	6,091,674		6,091,674			5,810,751
Commercial Real Estate Portfolio Segment [Member]
Balance, beginning of period	35,787	28,707	32,880		28,872
Charge-offs	(1,732)	(3,067)	(2,820)		(5,922)
Recoveries	173	16	177		206
Provision	1,950	3,471	5,941		5,971
Balance, end of period	36,178	29,127	36,178		29,127
Individually Evaluated for Impairment	5,423		5,423			4,276
Collectively Evaluated for Impairment	30,755		30,755			28,604
Ending Balance	2,345,879		2,345,879			2,279,366
Individually Evaluated for Impairment	20,063		20,063			26,447
Collectively Evaluated for Impairment	2,325,816		2,325,816			2,252,919
Real Estate Portfolio Segment[Member]
Ending Balance	3,193,921		3,193,921			2,928,808
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Balance, beginning of period	4,138	4,825	4,989		5,125
Charge-offs		(40)			(40)
Recoveries	97	14	104		30
Provision	(173)	339	(1,031)		23
Balance, end of period	4,062	5,138	4,062		5,138
Individually Evaluated for Impairment	120		120			120
Collectively Evaluated for Impairment	3,942		3,942			4,869
Ending Balance	522,788		522,788			580,874
Individually Evaluated for Impairment	1,623		1,623			1,571
Collectively Evaluated for Impairment	521,165		521,165			579,303
Real Estate Portfolio Segment[Member] | Real Estate Loan [Member]
Balance, beginning of period	21,606	19,962	21,022		17,504
Charge-offs	(440)	(106)	(821)		(372)
Recoveries	2	2	44		4
Provision	2,270	534	3,193		3,256
Balance, end of period	23,438	20,392	23,438		20,392
Individually Evaluated for Impairment	285		285			1,163
Collectively Evaluated for Impairment	23,153		23,153			19,859
Ending Balance	3,193,921		3,193,921			2,928,808
Individually Evaluated for Impairment	16,240		16,240			12,404
Collectively Evaluated for Impairment	3,177,681		3,177,681			2,916,404
Consumer Portfolio Segment [Member]
Balance, beginning of period	519	398	515		392
Charge-offs	(47)	(33)	(135)		(108)
Recoveries	15		24		1
Provision	74	37	157		117
Balance, end of period	561	$ 402	561		$ 402
Individually Evaluated for Impairment	49		49			50
Collectively Evaluated for Impairment	512		512			465
Ending Balance	67,061		67,061			62,213
Individually Evaluated for Impairment	49		49			88
Collectively Evaluated for Impairment	$ 67,012		$ 67,012			$ 62,125
[1]	derived from audited financial statements

Note 5 - Loans - Summary of Imp

Note 5 - Loans - Summary of Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Recorded investment, with no allowance	$ 15,309	$ 15,309	$ 16,296
Unpaid principal balance, with no allowance	16,370	16,370	23,069
Average recorded investment, with no allowance	16,059	16,504	23,013
Interest income recognized in period, with no allowance	188	388	901
Recorded investment, with an allowance	22,666	22,666	24,214
Unpaid principal balance, with an allowance	29,489	29,489	24,795
Related allowance	5,877	5,877	5,609
Average recorded investment, with an allowance	22,801	23,303	25,727
Interest income recognized in period, with an allowance	210	430	1,059
Recorded investment	37,975	37,975	40,510
Unpaid principal balance	45,859	45,859	47,864
Average recorded investment	38,860	39,807	48,740
Interest income recognized in period	398	818	1,960
Commercial Real Estate Portfolio Segment [Member]
Recorded investment, with no allowance	4,842	4,842	10,036
Unpaid principal balance, with no allowance	5,733	5,733	16,639
Average recorded investment, with no allowance	5,257	5,611	16,417
Interest income recognized in period, with no allowance	53	113	571
Recorded investment, with an allowance	15,221	15,221	16,411
Unpaid principal balance, with an allowance	22,044	22,044	16,992
Related allowance	5,423	5,423	4,276
Average recorded investment, with an allowance	15,200	15,542	17,912
Interest income recognized in period, with an allowance	121	245	651
Recorded investment	20,063	20,063	26,447
Unpaid principal balance	27,777	27,777	33,631
Average recorded investment	20,457	21,153	34,329
Interest income recognized in period	174	358	1,222
Real Estate Portfolio Segment[Member]
Recorded investment, with no allowance	9,841	9,841	5,648
Unpaid principal balance, with no allowance	10,008	10,008	5,814
Average recorded investment, with no allowance	10,173	10,263	5,891
Interest income recognized in period, with no allowance	127	259	296
Recorded investment, with an allowance	6,399	6,399	6,756
Unpaid principal balance, with an allowance	6,399	6,399	6,756
Related allowance	285	285	1,163
Average recorded investment, with an allowance	6,555	6,715	6,776
Interest income recognized in period, with an allowance	74	156	349
Recorded investment	16,240	16,240	12,404
Unpaid principal balance	16,407	16,407	12,570
Average recorded investment	16,728	16,978	12,667
Interest income recognized in period	201	415	645
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Recorded investment, with no allowance	626	626	574
Unpaid principal balance, with no allowance	629	629	577
Average recorded investment, with no allowance	629	630	663
Interest income recognized in period, with no allowance	8	16	31
Recorded investment, with an allowance	997	997	997
Unpaid principal balance, with an allowance	997	997	997
Related allowance	120	120	120
Average recorded investment, with an allowance	997	997	997
Interest income recognized in period, with an allowance	14	28	56
Recorded investment	1,623	1,623	1,571
Unpaid principal balance	1,626	1,626	1,574
Average recorded investment	1,626	1,627	1,660
Interest income recognized in period	22	44	87
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Recorded investment, with no allowance	2,512	2,512	2,640
Unpaid principal balance, with no allowance	2,679	2,679	2,806
Average recorded investment, with no allowance	2,836	2,910	2,875
Interest income recognized in period, with no allowance	42	86	159
Recorded investment, with an allowance	3,776	3,776	3,914
Unpaid principal balance, with an allowance	3,776	3,776	3,914
Related allowance	27	27	601
Average recorded investment, with an allowance	3,775	3,775	3,801
Interest income recognized in period, with an allowance	46	94	215
Recorded investment	6,288	6,288	6,554
Unpaid principal balance	6,455	6,455	6,720
Average recorded investment	6,611	6,685	6,676
Interest income recognized in period	88	180	374
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Recorded investment, with no allowance	2,258	2,258	2,262
Unpaid principal balance, with no allowance	2,258	2,258	2,262
Average recorded investment, with no allowance	2,255	2,255	2,289
Interest income recognized in period, with no allowance	23	48	93
Recorded investment, with an allowance	1,237	1,237	980
Unpaid principal balance, with an allowance	1,237	1,237	980
Related allowance	178	178	281
Average recorded investment, with an allowance	1,240	1,240	1,113
Interest income recognized in period, with an allowance	12	26	54
Recorded investment	3,495	3,495	3,242
Unpaid principal balance	3,495	3,495	3,242
Average recorded investment	3,495	3,495	3,402
Interest income recognized in period	35	74	147
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Recorded investment, with no allowance	5,071	5,071	746
Unpaid principal balance, with no allowance	5,071	5,071	746
Average recorded investment, with no allowance	5,082	5,098	727
Interest income recognized in period, with no allowance	62	125	44
Recorded investment, with an allowance	1,386	1,386	1,862
Unpaid principal balance, with an allowance	1,386	1,386	1,862
Related allowance	80	80	281
Average recorded investment, with an allowance	1,540	1,700	1,862
Interest income recognized in period, with an allowance	16	36	80
Recorded investment	6,457	6,457	2,608
Unpaid principal balance	6,457	6,457	2,608
Average recorded investment	6,622	6,798	2,589
Interest income recognized in period	78	161	124
Consumer Portfolio Segment [Member]
Recorded investment, with no allowance			38
Unpaid principal balance, with no allowance			39
Average recorded investment, with no allowance			42
Interest income recognized in period, with no allowance			3
Recorded investment, with an allowance	49	49	50
Unpaid principal balance, with an allowance	49	49	50
Related allowance	49	49	50
Average recorded investment, with an allowance	49	49	42
Interest income recognized in period, with an allowance	1	1	3
Recorded investment	49	49	88
Unpaid principal balance	49	49	89
Average recorded investment	49	49	84
Interest income recognized in period	$ 1	$ 1	$ 6

Note 5 - Loans - Trouble Debt R

Note 5 - Loans - Trouble Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017USD ($)	Jun. 30, 2018	Jun. 30, 2017USD ($)
Number of Contracts	0	9	0	9
Pre- Modification Outstanding Recorded Investment		$ 12,716		$ 12,716
Post- Modification Outstanding Recorded Investment		$ 12,716		$ 12,716
Commercial Real Estate Portfolio Segment [Member]
Number of Contracts		5		5
Pre- Modification Outstanding Recorded Investment		$ 7,205		$ 7,205
Post- Modification Outstanding Recorded Investment		$ 7,205		$ 7,205
Real Estate Portfolio Segment[Member]
Number of Contracts		3		3
Pre- Modification Outstanding Recorded Investment		$ 4,514		$ 4,514
Post- Modification Outstanding Recorded Investment		$ 4,514		$ 4,514
Real Estate Portfolio Segment[Member] | Construction Loans [Member]
Number of Contracts		1		1
Pre- Modification Outstanding Recorded Investment		$ 997		$ 997
Post- Modification Outstanding Recorded Investment		$ 997		$ 997
Real Estate Portfolio Segment[Member] | Owner Occupied Commercial [Member]
Number of Contracts		2		2
Pre- Modification Outstanding Recorded Investment		$ 3,664		$ 3,664
Post- Modification Outstanding Recorded Investment		$ 3,664		$ 3,664
Real Estate Portfolio Segment[Member] | One to Four Family [Member]
Number of Contracts		1		1
Pre- Modification Outstanding Recorded Investment		$ 850		$ 850
Post- Modification Outstanding Recorded Investment		$ 850		$ 850
Real Estate Portfolio Segment[Member] | Other Mortgages [Member]
Number of Contracts
Pre- Modification Outstanding Recorded Investment
Post- Modification Outstanding Recorded Investment
Consumer Portfolio Segment [Member]
Number of Contracts
Pre- Modification Outstanding Recorded Investment
Post- Modification Outstanding Recorded Investment

Note 6 - Employee and Directo39

Note 6 - Employee and Director Benefits (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2006
Share-based Compensation, Total	$ 244,000	$ 285,000	$ 482,000	$ 622,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 10.95	$ 11.84
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total	1,695,000		$ 1,695,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years 146 days
Restricted Stock [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total	$ 811,000		$ 811,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 292 days
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
The 2005 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized					6,150,000
The 2009 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	5,550,000		5,550,000

Note 6 - Employee and Directo40

Note 6 - Employee and Director Benefits - Assumption Used to Estimate Fair Value of Stock Option Awards (Details) - Employee Stock Option [Member]	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Expected volatility	24.13%	29.00%
Expected dividends	1.06%	0.44%
Expected term (in years) (Year)	6 years 91 days	6 years 91 days
Risk-free rate	2.67%	2.09%

Note 6 - Employee and Directo41

Note 6 - Employee and Director Benefits - Summary of Stock Option Activity (Details) - Employee Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Mar. 31, 2017	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Outstanding, shares (in shares)	2,026,334	1,666,834	2,026,334
Outstanding, weighted average exercise price (in dollars per share)	$ 9	$ 10.68	$ 9
Outstanding, weighted average remaining contractual term (Year)	5 years 328 days	5 years 109 days	5 years 182 days	6 years 73 days
Outstanding, aggregate intrinsic value	$ 45,777	$ 43,787	$ 51,377	$ 57,636
Granted (in shares)	51,500	12,750
Granted, weighted average exercise price (in dollars per share)	$ 37.95	$ 41.50
Granted, weighted average remaining contractual term (Year)	9 years 219 days	9 years 255 days
Granted, aggregate intrinsic value	$ (80)	$ (9)
Exercised (in shares)	(292,000)	(175,836)
Exercised, weighted average exercise price (in dollars per share)	$ 4.98	$ 4.90
Exercised, weighted average remaining contractual term (Year)	4 years 146 days	3 years 36 days
Exercised, aggregate intrinsic value	$ 9,169	$ 6,317
Forfeited (in shares)	(32,000)	(6,000)
Forfeited, weighted average exercise price (in dollars per share)	$ 21.96	$ 19.50
Forfeited, weighted average remaining contractual term (Year)	8 years 219 days	7 years 255 days
Forfeited, aggregate intrinsic value	$ (462)	$ 128
Outstanding, shares (in shares)	1,753,834	1,497,748	1,666,834	2,026,334
Outstanding, weighted average exercise price (in dollars per share)	$ 10.28	$ 11.58	$ 10.68	$ 9
Exercisable, shares (in shares)	811,736	748,600
Exercisable, weighted average exercise price (in dollars per share)	$ 5.20	$ 7.34
Exercisable, weighted average remaining contractual term (Year)	4 years 146 days	3 years 328 days
Exercisable, aggregate intrinsic value	$ 25,303	$ 25,811

Note 6 - Employee and Directo42

Note 6 - Employee and Director Benefits - Restricted Stock Activity (Details) - Restricted Stock [Member] - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Non-vested (in shares)	120,676	118,676
Non-vested (in dollars per share)	$ 10.29	$ 8.88
Granted (in shares)	11,850	6,000
Granted (in dollars per share)	$ 41.29	$ 38.16
Vested (in shares)	(61,700)	(4,200)
Vested (in dollars per share)	$ 5.81	$ 14.49
Forfeited (in shares)		(800)
Forfeited (in dollars per share)		$ 15.74
Non-vested (in shares)	70,826	119,676
Non-vested (in dollars per share)	$ 19.38	$ 9.94

Note 8 - Recently Adopted Acc43

Note 8 - Recently Adopted Accounting Pronouncements (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total		$ (7,178,000)	$ (198,000)	[1]
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Adjustments for New Accounting Principle, Early Adoption [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total			$ (43,000)
[1]	derived from audited financial statements

Note 10 - Fair Value Measurem44

Note 10 - Fair Value Measurement (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Asset Impairment Charges, Total	$ 1,543,000	$ 2,329,000	$ 3,888,000	$ 5,307,000
Real Estate Owned, Amount of Loss at Acquisition	99,000	$ 83,000	353,000	$ 53,000
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Foreclosure			176,000		$ 0
Mortgage Loans in Process of Foreclosure, Amount	$ 360,000		$ 360,000

Note 10 - Fair Value Measurem45

Note 10 - Fair Value Measurement - Financial Assets and Financial Liabilities Carried at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available for sale debt securities	$ 583,549	$ 538,080	[1]
Fair Value, Measurements, Recurring [Member]
Available for sale debt securities	583,549	538,080
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	577,024	531,580
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities	6,525	6,500
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member]
Available for sale debt securities	57,111	55,356
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	57,111	55,356
Fair Value, Measurements, Recurring [Member] | US Treasury and Government [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member]
Available for sale debt securities	314,431	276,498
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	314,431	276,498
Fair Value, Measurements, Recurring [Member] | Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member]
Available for sale debt securities	120,531	134,849
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	120,531	134,849
Fair Value, Measurements, Recurring [Member] | US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member]
Available for sale debt securities	91,476	71,377
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available for sale debt securities
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	84,951	64,877
Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities	$ 6,525	$ 6,500
[1]	derived from audited financial statements

Note 10 - Fair Value Measurem46

Note 10 - Fair Value Measurement - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Impaired loans	$ 32,098	$ 34,901
Other real estate owned and repossessed assets	5,937	6,701
Total assets at fair value	38,035	41,602
Fair Value, Inputs, Level 1 [Member]
Impaired loans
Other real estate owned and repossessed assets
Total assets at fair value
Fair Value, Inputs, Level 2 [Member]
Impaired loans
Other real estate owned and repossessed assets
Total assets at fair value
Fair Value, Inputs, Level 3 [Member]
Impaired loans	32,098	34,901
Other real estate owned and repossessed assets	5,937	6,701
Total assets at fair value	$ 38,035	$ 41,602

Note 10 - Fair Value Measurem47

Note 10 - Fair Value Measurement - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis or Nonrecurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Cash and due from banks	$ 68,344	$ 86,213	[1]
Available for sale debt securities	583,549	538,080	[1]
Equity securities	993	1,034	[1]
Federal funds sold	15,585	239,524	[1]
Mortgage loans held for sale	4,605	4,459	[1]
Bank-owned life insurance contracts	129,082	127,519	[1]
Held to maturity debt securities	250	250	[1]
Net Loans	6,065,410	5,791,855	[1]
Federal funds purchased	262,659	301,797	[1]
Reported Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	150,086	238,062
Reported Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	577,024	531,580
Equity securities	993	1,034
Federal funds sold	15,585	239,524
Mortgage loans held for sale	4,605	4,459
Bank-owned life insurance contracts	129,082	127,519
Deposits	6,085,682	6,091,674
Federal funds purchased	262,659	301,797
Other borrowings	64,648	64,832
Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities	6,525	6,500
Held to maturity debt securities	250	250
Net Loans	6,033,312	5,756,954
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	150,086	238,062
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Available for sale debt securities	577,024	531,580
Equity securities	993	1,034
Federal funds sold	15,585	239,524
Mortgage loans held for sale	4,605	4,459
Bank-owned life insurance contracts	129,082	127,519
Deposits	6,078,286	6,086,085
Federal funds purchased	262,659	301,797
Other borrowings	65,677	65,921
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Available for sale debt securities	6,525	6,500
Held to maturity debt securities	250	250
Net Loans	$ 5,961,354	$ 5,712,441
[1]	derived from audited financial statements