Southwest Bancorp (OKSB) 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 07, 2015
Document And Entity Information [Abstract]
Entity Registrant Name	SOUTHWEST BANCORP INC
Entity Central Index Key	914,374
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Trading Symbol	oksb
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		19,033,860

Consolidated Statements Of Fina

Consolidated Statements Of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Assets:
Cash and due from banks	$ 22,923	$ 19,705
Interest-bearing deposits	133,765	121,231
Cash and cash equivalents	156,688	140,936
Securities held to maturity (fair values of $11,818 and $12,880, respectively)	11,364	12,362
Securities available for sale (amortized cost of $360,609 and $352,275, respectively)	361,896	353,231
Loans held for sale	6,687	1,485
Loans receivable	1,442,743	1,398,506
Less: Allowance for loan losses	(26,219)	(28,452)
Net loans receivable	1,416,524	1,370,054
Accrued interest receivable	4,281	4,723
Non-hedge derivative asset	701	787
Premises and equipment, net	18,251	18,588
Other real estate	2,393	3,097
Goodwill	1,214	1,214
Other intangible assets, net	3,923	3,927
Bank owned life insurance	20,110
Other assets	27,549	31,630
Total assets	2,031,581	1,942,034
Deposits:
Noninterest-bearing demand	515,156	496,128
Interest-bearing demand	131,547	122,342
Money market accounts	496,178	461,679
Savings accounts	35,647	32,795
Time deposits of $100,000 or more	233,105	198,952
Other time deposits	212,813	222,103
Total deposits	1,624,446	1,533,999
Accrued interest payable	774	769
Non-hedge derivative liability	701	787
Other liabilities	9,747	9,920
Other borrowings	75,839	79,380
Subordinated debentures	46,393	46,393
Total liabilities	1,757,900	1,671,248
Shareholders' equity:
Common stock - $1 par value; 40,000,000 shares authorized; 19,900,855 and 19,831,877 shares issued, respectively	19,901	19,811
Additional paid in capital	101,518	101,245
Retained earnings	166,837	160,427
Accumulated other comprehensive loss	(233)	(395)
Treasury Stock, at cost; 867,310 and 617,818 shares, respectively	(14,342)	(10,302)
Total shareholders' equity	273,681	270,786
Total liabilities & shareholders' equity	$ 2,031,581	$ 1,942,034

Consolidated Statements Of Fin3

Consolidated Statements Of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Consolidated Statements Of Financial Condition [Abstract]
Held to maturity securities, fair value	$ 11,818	$ 12,880
Available for sale securities, amortized cost	$ 360,609	$ 352,275
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	19,900,855	19,810,877
Treasury Stock, Shares	867,310	617,818

Consolidated Statements Of Oper

Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest income:
Interest and fees on loans	$ 15,839	$ 16,343	$ 31,409	$ 32,118
Investment securities:
U.S. Government and agency obligations	381	337	717	764
Mortgage-backed securities	660	937	1,378	1,826
State and political subdivisions	287	294	576	590
Other securities		60	6	98
Other interest-earning assets	288	314	593	689
Total interest income	17,455	18,285	34,679	36,085
Interest expense:
Interest-bearing demand	30	40	63	80
Money market accounts	183	136	365	282
Savings accounts	9	11	17	22
Time deposits of $100,000 or more	170	338	408	787
Other time deposits	470	406	844	785
Other borrowings	241	223	468	448
Subordinated debentures	561	557	1,113	1,106
Total interest expense	1,664	1,711	3,278	3,510
Net interest income	15,791	16,574	31,401	32,575
Provision (credit) for loan losses	(1,136)	(355)	(3,023)	(1,341)
Net interest income after provision (credit) for loan losses	16,927	16,929	34,424	33,916
Noninterest income:
Service charges and fees	2,450	2,608	4,878	5,204
Gain on sale of bank branches, net		4,378		4,378
Gain on sales of mortgage loans, net	621	463	969	687
Gain on sales/calls of investment securities, net	138	629	143	764
Other noninterest income	200	168	259	238
Total noninterest income	3,409	8,246	6,249	11,271
Noninterest expense:
Salaries and employee benefits	8,289	8,472	16,203	16,598
Occupancy	2,201	2,253	4,485	4,537
Data processing	410	530	856	1,015
FDIC and other insurance	316	314	628	711
Other real estate, net	112	511	133	579
General and administrative	2,654	3,252	4,759	5,999
Total noninterest expense	13,982	15,332	27,064	29,439
Income before taxes	6,354	9,843	13,609	15,748
Taxes on income	2,193	3,691	4,913	5,905
Net income	$ 4,161	$ 6,152	$ 8,696	$ 9,843
Basic earnings per common share	$ 0.22	$ 0.31	$ 0.46	$ 0.50
Diluted earnings per common share	0.22	0.31	0.46	0.50
Common dividends declared per share	$ 0.06	$ 0.04	$ 0.12	$ 0.08

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 4,161	$ 6,152	$ 8,696	$ 9,843
Other comprehensive income:
Unrealized holding gain (loss) on available for sale securities	(1,375)	2,761	474	5,290
Reclassification adjustment for net gains arising during the period	(138)	(629)	(143)	(764)
Change in fair value of derivative used for cash flow hedge	(10)	(32)	(84)	70
Other comprehensive income (loss), before tax	(1,523)	2,100	247	4,596
Tax benefit (expense) related to items of other comprehensive income	617	(812)	(85)	(1,778)
Other comprehensive income (loss), net of tax	(906)	1,288	162	2,818
Comprehensive income	$ 3,255	$ 7,440	$ 8,858	$ 12,661

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities:
Net income	$ 8,696	$ 9,843
Adjustments to reconcile net income to net cash provided by operating activities:
Provision (credit) for loan losses	(3,023)	(1,341)
Adjustments to other real estate	63	320
Deferred tax expense	1,286	5,609
Asset depreciation	1,172	1,301
Securities premium amortization, net of discount accretion	1,394	1,341
Amortization of intangibles	480	393
Restricted stock amortization expense	656	430
Net gain on sales/calls of investment securities	(143)	(764)
Net gain on sales of mortgage loans	(969)	(687)
Net (gain) loss on sales of premises/equipment	(13)	37
Net (gain) loss on sales of other real estate	(59)	18
Net gain from sale of bank branches		(4,378)
Proceeds from sales of held for sale loans	44,913	35,711
Held for sale loans originated for resale	(49,214)	(38,709)
Net changes in assets and liabilities:
Accrued interest receivable	442	398
Other assets	1,806	(1,687)
Accrued interest payable	5	(73)
Other liabilities	(241)	1,080
Net cash provided by operating activities	7,251	8,842
Investing activities:
Held to maturity securities	940	1,000
Available for sale securities	50,586	45,343
Redemptions of other investments		885
Purchases of available for sale securities	(60,255)	(34,833)
Purchases of bank owned life insurance	(20,110)
Loans originated, net of principal repayments	(43,689)	(109,347)
Cash outflows from sale of bank branches, net		(94,806)
Purchases of premises and equipment	(888)	(1,034)
Proceeds from sales of premises and equipment	66	39
Proceeds from sales of other real estate	900	251
Net cash used in investing activities	(72,450)	(192,502)
Financing activities:
Net increase in deposits	90,447	10,344
Net increase (decrease) in other borrowings	(3,541)	10,128
Net proceeds from issuance of common stock	363	75
Purchases of treasury stock	(4,040)
Common stock dividends paid	(2,277)	(1,571)
Preferred stock dividends paid	(1)	(1)
Net cash provided by financing activities	80,951	18,975
Net increase (decrease) in cash and cash equivalents	15,752	(164,685)
Cash and cash equivalents:
Beginning of period	140,936	279,839
End of period	$ 156,688	$ 115,154

Consolidated Statement Of Share

Consolidated Statement Of Shareholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Gain/(Loss) [Member]	Treasury Stock [Member]	Total
Beginning balance, Shares at Dec. 31, 2013	19,732,926
Beginning balance at Dec. 31, 2013	$ 19,733	$ 99,937	$ 142,528	$ (3,011)		$ 259,187
Dividends declared:
Preferred			(1)			(1)
Common			(1,581)			(1,581)
Common stock issued	$ 59	1,010				1,069
Common stock issued, shares	59,343
Net common stock issued under employee plans and related tax expense	$ 1	15				16
Net common stock issued under employee plans and related tax expense, shares	854
Other comprehensive income, net of tax				2,818		2,818
Net income			9,843			9,843
Ending balance, Shares at Jun. 30, 2014	19,793,123
Ending balance at Jun. 30, 2014	$ 19,793	100,962	150,789	(193)		271,351
Beginning balance, Shares at Dec. 31, 2014	19,193,059
Beginning balance at Dec. 31, 2014	$ 19,811	101,245	160,427	(395)	$ (10,302)	270,786
Dividends declared:
Preferred			(1)			(1)
Common			(2,285)			(2,285)
Common stock issued	$ 89	256				345
Common stock issued, shares	88,937
Net common stock issued under employee plans and related tax expense	$ 1	17				18
Net common stock issued under employee plans and related tax expense, shares	1,041
Other comprehensive income, net of tax				162		162
Treasury shares purchased					(4,040)	(4,040)
Treasury shares purchased, shares	(249,492)
Net income			8,696			8,696
Ending balance, Shares at Jun. 30, 2015	19,033,545
Ending balance at Jun. 30, 2015	$ 19,901	$ 101,518	$ 166,837	$ (233)	$ (14,342)	$ 273,681

Consolidated Statement of Shar8

Consolidated Statement of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated Statement Of Shareholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Declared	$ 0.06	$ 0.04	$ 0.12	$ 0.08

Summary of Significant Accounti

Summary of Significant Accounting And Reporting Policies	6 Months Ended
	Jun. 30, 2015
Significant Accounting And Reporting Policies [Abstract]
Significant Accounting And Reporting Policies	N OTE 1 : SIGNIFICANT ACCOUNTING AND REPORTING POLICIES The accompanying unaudited consolidated financial statements were prepared in accordance with instructions for Form 10-Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations, shareholders’ equity, cash flows, and comprehensive income in conformity with accounting principles generally accepted in the United States. However, the unaudited consolidated financial statements include all adjustments which, in the opinion of management, are necessary for a fair presentation. Those adjustments consist of normal recurring adjustments. The results of operations for the three and six months ended June 30, 2015 , and the cash flows for the six months ended June 30, 2015 , should not be considered indicative of the results to be expected for the full year. These unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Southwest Bancorp, Inc. Annual Report on Form 10-K for the year ended December 31, 2014 . The accompanying unaudited consolidated financial statements include the accounts of Southwest Bancorp, Inc. ( “we”, “our”, “us”, “Southwest”), Bank SNB, an Oklahoma state banking corporation (“Bank SNB”), our banking subsidiary , SNB Capital Corporation, a lending and loan workout subsidiary, and the consolidated subsidiaries of Bank SNB, including SNB Real Estate Holdings, Inc. All significant intercompany transactions and balances have been eliminated in consolidation. In accordance with Accounting Standards Codification (“ASC”) 855, Subsequent Events , we have evaluated subsequent events for potential recognition and disclosure through the date the consolidated financial statements included in this Quarterly Report on Form 10-Q were issued.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2015
Investment Securities [Abstract]
Investment Securities	NOTE 2 : INVESTMENT SECURITIES A summary of the amortized cost and fair values of investme nt securities at June 30, 2015 and December 31, 2014 follows: Amortized Gross Unrealized Fair (Dollars in thousands) Cost Gains Losses Value At June 30, 2015 Held to Maturity: Obligations of state and political subdivisions $ $ $ $ Total $ $ $ $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities Other securities Total $ $ $ $ At December 31, 2014 Held to Maturity: Obligations of state and political subdivisions $ $ $ $ Total $ $ $ $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities - Other securities Total $ $ $ $ Residential mortgage-backed securities consist of agency securities underwritten and guaranteed by Government National Mortgage Association, Federal Home Loan Mortgage Corporation, and Federal National Mortgage Association. Other securities consist of corporate stock. Securities with limited marketa bility, such as Federal Reserve Bank stock, Federal Home Loan Bank (“FHLB”) stock, and certain other investments, are carried at cost and included in other assets on the consolidated statement s of financial condition. Total investments carried at cost were $ 7.9 million at June 30, 2015 an d December 31, 2014 . There are no identified events or changes in circumstances that may have a significant adverse effect on the investments carried at cost. A comparison of the amortized cost and approximate fair value of our investment securities by maturity date at June 30, 2015 follows: Available for Sale Held to Maturity Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value One year or less $ $ $ - $ - More than one year through five years More than five years through ten years More than ten years - - Total $ $ $ $ The foregoing analysis assumes that our residential mortgage-backed securities mature during the period in which they are estimated to prepay. No other prepayment or repricing assumptions have been applied to our investment securities for this analysis. Gain or loss on sale of investments is based upon the specific identification me tho d. There was a $ 0.1 million gain on sales of securities for the six months ended June 30, 2015 which resulted from residual payments related to the sale of a private equity investment during the fourth quarter of 2014. There was a $ 0. 8 million gain on sales of securities for the six months ended June 30, 2014 , which was the result of the sale of a stock investment that was acquired in a prior year repossession. The following table shows securities with gross unrealized losses and their fair values by the length of time that the individual securities had been in a continuous unrealized loss position at June 30, 2015 and December 31, 2014 . Securities whose market values exceed cost are excluded from this table. Continuous Unrealized Amortized cost of Loss Existing for: Fair value of Number of securities with Less Than More Than securities with (Dollars in thousands) Securities unrealized losses 12 Months 12 Months unrealized losses At June 30, 2015 Held to Maturity: Obligations of state and political subdivisions $ $ $ - $ $ $ $ - $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities - Other securities Total $ $ $ $ At December 31, 2014 Held to Maturity: Obligations of state and political subdivisions $ $ $ - $ $ $ $ - $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions - Residential mortgage-backed securities Asset-backed securities Other securities Total $ $ $ $ We evaluate all securities on an individual basis for other-than-temporary impairment on at least a quarterly basis. Consideration is given to the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, and our intent and ability to retain our investment in the issuer for a period of time sufficient to allow for an anticipated recovery in fair value. We have the ability and intent to hold the securities classified as held to maturity until they mature, at which time we expect to receive full value for the securities. Furthermor e, as of June 30, 2015 , management does not have the intent to sell any of the securities classified as available for sale in the table above and believes that it is not likely that we will have to sell any such securities before a recovery of cost. The declines in fair value were attributable to recent increases in market interest rates over the yields available at the time the underlying securities were purchased or increases in spreads over market interest rates. Management does not believe any of the securities are impaired due to credit quality. Accordingly, as of June 30, 2015 , management believes the impairment of these investments is not deemed to be other-than-temporary. As required by law, available for sale investment securities are pledged to secure public and trust deposits, sweep agreements, and borrowings from the FHLB. Securities with an amortized cost of $ 212.3 million and $ 218.5 million were pledged to meet such requirements at June 30, 2015 and December 31, 2014 , respectively. Any amount over-pledged can be released at any time.

Loans And Allowance For Loan Lo

Loans And Allowance For Loan Losses	6 Months Ended
	Jun. 30, 2015
Loans And Allowance For Loan Losses [Abstract]
Loans And Allowance For Loan Losses	NOTE 3 : LOANS AND ALLOWANCE FOR LOAN LOSSES We extend commercial and consumer credit primarily to customers in the states of Oklahom a, Texas, and Kansas. Our commercial lending operations are concentrated in Oklahoma City, Tulsa, Dallas, Wichita, and other metropolitan markets in Oklahoma, Texas , and Kansas . As a result, the collect a bility of our loan portfolio can be affected by changes in the economic conditions in those states and markets . Please see Note 9: Operating Segments for more detail regarding loans by market. At June 30, 2015 and December 31, 2014 , substantially all of our l oans were collateralized with real estate, inventory, accounts receivable, and/or other assets or were guaranteed by agencies of the United States government. Our loan classifications were as follows: (Dollars in thousands) At June 30, 2015 At December 31, 2014 Real estate mortgage: Commercial $ $ One-to-four family residential Real estate construction: Commercial One-to-four family residential Commercial Installment and consumer: Guaranteed student loans - Other Less: Allowance for loan losses Total loans, net Less: Loans held for sale (included above) Net loans receivable $ $ Concentrations of Cred it . At June 30 , 2015, $485.7 million, or 34% , and $ 422.3 million, or 29 %, of our loan s consisted of loans to individuals and businesses in the real estate and healthca re industries, respectively . We do not have any other concentrations of loans to individuals or businesses involved in a single industry totaling 10% or more of total loans. Loans Held for Sale . We had loans which were held for sale of $ 6.7 million and $ 1.5 million at June 30, 2015 and December 31, 2014 , respectively. The loans currently classified as held for sale, primarily residential mortgage loans, are carried at the lower of cost or market value. A substantial portion of our one-to-four family residential loans and loan servicing rights are sold to one buyer. These mortgage loans are generally sold within a one -month period from loan closing at amounts determined by the investor commitment based upon the pricing of the loan. These loans are available for sale in the secondary market. Loan Servicing . We earn fees for servicing real estate mortgages and other loans owned by others. The fees are generally calculated on the outstanding principal balance of the loans serviced and are recorded as noninterest income when earned. The unpaid principal balance of real estate mortgage loans serviced for others totaled $ 416.0 million and $ 410.3 million at June 30, 2015 and December 31, 2014 , respectively. Loan servicing rights are capitalized based on estimated fair value at the point of origination. The servicing rights are amortized over the period of estimated net servicing income. Acquired Loan s . On June 19, 2009, Bank SNB entered into purchase and assumption agreement s with the Federal Deposit Insurance Corporation (“FDIC”) to acquire substantially all loans as well as certain other related assets of First National Bank of Anthony, Anthony, Kansas in an FDIC-assisted transaction. Bank SNB and the FDIC ente red into loss sharing agreements that provide d Bank SNB with significant protection against credit losses from loans and related assets acquired in the transaction (also known as acquired, covered, or discounted loans). Under these agreements, for a period of ten years for 1-4 family real estate loans and for a period of five years for other loans, the FDIC was required to reimburse Bank SNB for 80 % of net losses up to $ 35.0 million on covered assets, primarily acquired loans and other real estate, and for 95 % of any net losses above $35.0 million. Bank SNB services the covered assets. On April 10, 2015, Bank SNB entered into an agreement with the FDIC to terminate these loss sharing agreements with the FDIC. All future recoveries, charge-offs, and expenses related to these covered assets are now recognized entirely by Bank SNB. Due to the immateriality of the remaining balance of loans that were covered under the loss sharing agreements with the FDIC, covered and noncovered loans have been combined for reporting purposes. Prior period numbers have also been adjusted to reflect this change. This adjustment has no financial statement impact. Loans that were covered under the loss sharing agreements with the FDIC are reported in loans. The acquired loans were initially recorded at fair value (as determined by the present value of expected future cash flows) with no allowance for loan losses. Subsequent decreases in expected cash flows are recognized as impairments. Valuation allowances on these loans reflect only losses incurred after the acquisition. Changes in the carrying amounts and accretable yields for loans that were acquired under the loss sharing agreements with the FDIC were as follows for the three and six months ended June 30, 2015 and June 30, 2014 . For the three months ended June 30, 2015 2014 Carrying Carrying Accretable amount Accretable amount (Dollars in thousands) Yield of loans Yield of loans Balance at beginning of period $ $ $ $ Payments received - - Net charge-offs - - Net reclassifications to / from nonaccretable amount - - - Accretion - Balance at end of period $ $ $ $ For the six months ended June 30, 2015 2014 Carrying Carrying Accretable amount Accretable amount (Dollars in thousands) Yield of loans Yield of loans Balance at beginning of period $ $ $ $ Payments received - - Net charge-offs - - Net reclassifications to / from nonaccretable amount - - - Accretion - Balance at end of period $ $ $ $ Nonperforming / Past Due Loans . We identify past due loans based on contractual terms on a loan-by-loan basis and generally place loans, except for consumer loans, on nonaccrual when any portion of the principal or intere st is ninety d ays past due and collateral is insufficient to discharge the debt in full. Interest accrual may also be discontinued earlier if, in management’s opinion, collection is unlikely. Generally, past due consumer installment loans are not placed on nonaccrual but are charged-off when they are four months past due. Accrued interest is written off when a loan is placed on nonaccrual status. Subsequent interest income is recorded when cash receipts are received from the borrower and collectability of the principal amount is reasonably assured. Under generally accepted accounting principles and instructions to reports of condition and income of banking regulators, a nonaccrual loan may be returned to accrual status: (i) when none of its principal and interest is due and unpaid, repayment is expected, and there has been a sustained period (at least six months) of repayment performance; (ii) when the loan is well-secured, there is a sustained period of performance and repayment within a reasonable period is reasonably assured; or (iii) when the loan otherwise becomes well-secured and in the process of collection. Loans that have been restructured because of weakened financial positions of the borrowers also may be returned to accrual status if repayment is reasonably assured under the revised terms and there has been a sustained period of repayment performance. Management strives to carefully monitor credit quality and to identify loans that may become nonperforming. At any time, however, there are loans included in the portfolio that will result in losses to us t hat have not been identified as nonperforming or potential problem loans. Because the loan portfolio contains a significant number of commercial (including energy banking credits) and commercial real estate loans with relatively large balances , the unexpected deterioration of one or a few such loans may cause a significant increase in nonperforming assets and may lead to a material increase in charge-offs and the provision for loan losses in future periods. The following table shows the recorded investment in loans on nonaccrual status. (Dollars in thousands) At June 30, 2015 At December 31, 2014 Real estate mortgage: Commercial $ $ One-to-four family residential Real estate construction: Commercial Commercial Other consumer - Total nonaccrual loans $ $ During the first six months of 2015 , an immaterial amount of interest income was received on nonaccruing loans. If interest on all nonaccrual loans had been accrued for the six months ended June 30, 2015 , additional interest income of $ 0.3 million would have been recorded. The following table shows an age analysis of past due loans at June 30, 2015 and December 31, 2014 . 90 days and Recorded loans 30-89 days greater Total past Total > 90 days and (Dollars in thousands) past due past due due Current loans accruing At June 30, 2015 Real estate mortgage: Commercial $ $ $ $ $ $ - One-to-four family residential - Real estate construction: Commercial - - One-to-four family residential - - - - Commercial - Other - - Total $ $ $ $ $ - At December 31, 2014 Real estate mortgage: Commercial $ $ $ $ $ $ - One-to-four family residential - Real estate construction: Commercial - One-to-four family residential - - - - Commercial Other - Total $ $ $ $ $ Impaired Loans . A loan is considered to be impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. Each loan deemed to be impaired (loans on nonaccrual status and greater than $100,000, and all troubled debt restructurings) is evaluated on an individual basis using the discounted present value of expected cash flows based on the loan’s initial effective interest rate, the fair value of collateral, or the market value of the loan. Smaller balance and homogeneous loans, including mortgage and consumer loans, are collectively evaluated for impairment. Interest payments on impaired loans are applied to principal until collectability of the principal amount is reasonably assured, and, at that time, interest is recognized on a cash basis. Impaired loans, or portions thereof, are charged-off when deemed uncollectible. Impaired loans are shown in the following table: With No Specific Allowance With A Specific Allowance Unpaid Unpaid Recorded Principal Recorded Principal Related (Dollars in thousands) Investment Balance Investment Balance Allowance At June 30, 2015 Commercial real estate $ $ $ $ $ One-to-four family residential - - - Real estate construction - - - Commercial Other - - - - - Total $ $ $ $ $ At December 31, 2014 Commercial real estate $ $ $ $ $ One-to-four family residential - - - Real estate construction - - - Commercial Other - - - Total $ $ $ $ The average recorded investment of loans classified as impaired and the interest income recognized on those loans for the six months ended June 30, 2015 and June 30, 2014 are shown in the following table: As of and for the six months ended June 30, 2015 2014 Average Average Recorded Interest Recorded Interest (Dollars in thousands) Investment Income Investment Income Commercial real estate $ $ $ $ One-to-four family residential Real estate construction - - Commercial Other - - Total $ $ $ $ Troubled Debt Restructurings. Our loan portfolio also includes certain lo ans that have been modified in troubled debt restructuring s , where economic concessions have been granted to borrowers who have experienced financial difficulties. These concessions typically result from loss mitigation activities and can include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance, or other actions. Troubled debt restructurings are classified as impaired at the time of restructuring and are then further classified as nonperforming, potential problem, or performing restructured, as applicable. Loans modified in troubled debt restructurings may be returned to performing status after considering the borrowers’ sustained repayment for a reasonable period of at least six months. When we modify loans in a troubled debt restructuring, an evaluation of any possible impairment is performed similar to the evaluation done with respect to other impaired loans based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, or use of the current fair value of the collateral, less selling costs for collateral dependent loans. If it is determined that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs, and unamortized premium or discount), an impairment is recognized through an allowance estimate or a charge-off to the allowance. Troubled debt restructured loans outstanding as of June 30, 2015 and December 31, 2014 were as follows: At June 30, 2015 At December 31, 2014 (Dollars in thousands) Accruing Nonaccrual Accruing Nonaccrual Commercial real estate $ $ $ $ One-to-four family residential Commercial Total $ $ $ $ At June 30, 2015 and December 31, 2014 , we had no significant commitments to lend additional funds to debtors whose loan terms have been modified in a troubled debt restructuring. Loans modified as troubled debt restructurings that occurred during the three and six months ended June 30, 2015 and June 30, 2014 are shown in the following table: For the three months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Modifications Investment Modifications Investment Commercial - $ - $ Total - $ - $ For the six months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Modifications Investment Modifications Investment Commercial real estate - $ - $ Commercial - - Total - $ - $ The modifications of loans identified as troubled debt restructurings primarily related to payment reductions, payment extensions, and/or reductions in the interest rate. The financial impact of troubled debt restructurings is not significant. The following table presents the recorded investment and the number of loans modified as a troubled debt restructuring that subsequently defaulted during the three and six months ended June 30, 2015 and June 30, 2014 . Default, for this purpose, is deemed to occur when a loan is 90 days o r more past due or transferred to nonaccrual and is within twelve months of restructuring . For the three months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Contracts Investment Contracts Investment Commercial - $ - $ Total - $ - $ For the six months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Contracts Investment Contracts Investment Commercial - $ - $ Total - $ - $ Credit Quality Indicators . To assess the credit quality of loans, we categorize loans into risk categories based on relevant information about the ability of the borrowers to service their debts such as current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. This analysis is performed on a quarterly basis. We use the following definitions for risk ratings: Special mention – Loans classified as special mention have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for these loans or of the institution’s credit position at some future date. Substandard – Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligors or of the collateral pledged, if any. Loans so classified have one or more well-defined weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that we will sustain some loss if the deficiencies are not corrected. These loans are considered potential problem or nonperforming loans depending on the accrual status of the loans. Doubtful – Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristics that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. These loans are considered nonperforming. Loans not meeting the criteria above that are analyzed as part of the above described process are considered to be pass rated loans. As of June 30, 2015 and December 31, 2014 , based on the most recent analysis performed as of those dates, the risk category of loans by class was as follows: Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2015 Grade: Pass $ $ $ $ $ $ Special Mention Substandard - Doubtful - - - - Total $ $ $ $ $ $ At December 31, 2014 Grade: Pass $ $ $ $ $ $ Special Mention Substandard Doubtful - - Total $ $ $ $ $ $ Allowance for Loan Losses . The allowance for loan losses is a reserve established through the provision for loan losses charged to operations. Loan amounts which are determined to be uncollectible are charged against this allowance, and recoveries, if any, are added to the allowance. The appropriate amount of the allowance is based on periodic review and evaluation of the loan portfolio and quarterly assessments of the probable losses inherent in the loan portfolio . The amount of the loan loss provision for a period is based solely upon the amount needed to cause the allowance to reach the level deemed appropriate after the effects of net charge-offs for the period. Management believes the level of the allowance is appropriate to absorb probable losses inherent in the loan portfolio. The allowance for loan losses is determined in accordance with regulatory guidelines and generally accepted accounting principles and is comprised of two primary components, specific and general. There is no one factor, or group of factors, that produces the amount of an appropriate allowance for loan losses, as the methodology for assessing the allowance for loan losses makes use of evaluations of individual impaired loans along with other factors and analysis of loan categories. This assessment is highly qualitative and relies upon judgments and estimates by management. The specific allowance is recorded based on the result of an evaluation consistent with ASC 310.10.35, Receivables: Subsequent Measurement , for each impaired loan. Collateral dependent loans are evaluated for impairment based upon the fair value of the collateral. The amount and level of the impairment allowance is ultimately determined by management’s estimate of the amount of expected future cash flows or, if the loan is collateral dependent, on the value of collateral, which may vary from period to period depending on changes in the financial condition of the borrower or changes in the estimated value of the collateral. Charge-offs against the allowance for impaired loans are made when and to the extent loans are deemed uncollectible. Any portion of a collateral dependent impaired loan in excess of the fair value of the collateral that is determined to be uncollectible is charged off. The general component of the allowance is calculated based on ASC 450, Contingencies . Loans not evaluated for specific allowance are segmented into loan pools by type of loan . The non-owner occupied commercial real estate pool is further segmented by the market in which the loan collateral is located. Our primary markets are Oklahoma, Texas, and Kansas , and loans secured by real estate in those states are included in the “in-market” pool, with the remaining loans being included in the “out-of-market” pool. Estimated allowances are based on historical loss trends with adjustments factored in based on qualitative risk factors both internal and external to us . The historical loss trend is determined by loan pool and segmentation and is based on the actual loss history experienced by us over the most recent three years. The qualitative risk factors include, but are not limited to, economic and business conditions, changes in lending staff, lending policies and procedures, quality of loan review, changes in the nature and volume of the portfolios, loss and recovery trends, asset quality trends, and legal and regulatory considerations. Independent appraisals on real estate collateral securing loans are obtained at origination. New appraisals are obtained periodically and following discovery of factors that may significantly affect the value of the collateral. Appraisals typically are received within 30 days of request. Results of appraisals on nonperforming and potential problem loans are reviewed promptly upon receipt and considered in the determination of the allowance for loan losses. We are not aware of any significant time lapses in the process that have resulted, or would result in, a significant delay in determination of a credit weakness, the identification of a loan as nonperforming, or the measurement of an impairment. The following tables show the balance in the allowance for loan losses and the recorded investment in loans for the dates indicated by portfolio classification disaggregated on the basis of impairment evaluation method. Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2015 Balance at beginning of period $ $ $ $ $ $ Loans charged-off Recoveries Provision for loan losses Balance at end of period $ $ $ $ $ $ Allowance for loan losses ending balance: Individually evaluated for impairment $ $ - $ - $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - - - - - - Total ending allowance balance $ $ $ $ $ $ Loans receivable ending balance: Individually evaluated for impairment $ $ $ $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - Total ending loans balance $ $ $ $ $ $ Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2014 Balance at beginning of period $ $ $ $ $ $ Loans charged-off Recoveries - Provision for loan losses Balance at end of period $ $ $ $ $ $ Allowance for loan losses ending balances: Individually evaluated for impairment $ $ - $ - $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - - - - - - Total ending allowance balance $ $ $ $ $ $ Loans receivable ending balance: Individually evaluated for impairment $ $ $ $ $ $ Collectively evaluated for impairment Acquired with deteriorated credit quality Total ending loans balance $ $ $ $ $ $

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements [Abstract]
Fair Value Measurements	NOTE 4: FAIR VALUE MEASUREMENTS Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. In estimating fair value, we utilize valuation techniques that are consistent with the market approach, the income approach, and/or the cost approach. Such valuation techniques are consistently applied. Inputs to valuation techniques include the assumptions that market participants would use in pricing an asset or liability. ASC 820, Fair Value Measurements and Disclosure , establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows : Level 1 Quoted prices in active markets for identical instruments . Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. The estimated fair value amounts have been determined by us using available market information and appropriate valuation methodologies. However, considerable judgment is required to interpret market data to develop the estimates of fair value. Accordingly, the estimates presented herein are not necessarily indicative of the amount we could realize in a current market exchange. The use of different market assumptions and/or estimation methodologies could have a material effect on our estimated fair value amounts. There were no significant changes in valuation methods used to estimate fair value during the six months ended June 30, 2015 . A description of the valuation methodologies used for instruments measured at fair value on a recurring basis is as follows: Available for sale securities – The fair value of U.S. Government and federal agency securities, equity securities, and residential mortgage-backed securities is estimated based on quoted market prices or dealer quotes. The fair value of other investments such as obligations of state and political subdivisions is estimated based on quoted market prices. We obtain fair value measurements from an independent pricing service. The fair value measurements consider observable data that may include dealer quotes, market spreads, cash flows, the U.S. Treasury yield curve, live trading levels, trade execution data, market consensus prepayment speeds, credit information, and bond’s terms and conditions, among other things. We review the prices supplied by our independent pricing service, as well as their underlying pricing methodologies, for reasonableness and to ensure such prices are aligned with traditional pricing matrices. Derivative instruments – We utilize an interest rate swap agreement to convert one of our variable-rate subordinated debentures to a fixed rate. This has been designated as a cash flow hedge. We also offer an interest rate swap program that permits qualified customers to manage interest rate risk on variable rate loans with Bank SNB. Derivative contracts are executed between our customers and Bank SNB. Offsetting contracts are executed by Bank SNB and approved counterparties. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to us. The fair value of the interest rate swap agreements are obtained from dealer quotes. The following table summarizes financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2015 and December 31, 2014 . Fair Value Measurement at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Total (Level 1) (Level 2) (Level 3) At June 30, 2015 Available for sale securities: Federal agency securities $ $ - $ $ - Obligations of state and political subdivisions - - Residential mortgage-backed securities - - Asset-backed securities - - Other securities - Derivative asset - - Derivative liability - - Total $ $ $ $ - At December 31, 2014 Available for sale securities: Federal agency securities $ - - Obligations of state and political subdivisions - - Residential mortgage-backed securities - - Asset-backed securities - - Other securities - Derivative asset - - Derivative liability - - Total $ $ $ $ - Certain financial assets are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). These assets are recorded at the lower of cost or fair value. Valuation methodologies for assets measured on a nonrecurring basis are as follows: Impaired loans – Certain impaired loans are reported at the fair value of the underlying collateral if repayment is expected solely from collateral. Collateral values are estimated using inputs based on third-party appraisals. Certain other impaired loans are analyzed and reported through a specific valuation allowance based upon the net present value of cash flows. Loans held for sale – Real estate mortgage loans held for sale are carried at the lower of cost or market, which is determined on an individual loan basis. The fair value of loans held for sale is based on existing investor commitments. Other real estate – Other real estate fair value is based on third-party appraisals for significant properties less the estimated costs to sell the asset. Mortgage loan servicing rights – There is no active trading market for loan servicing rights. The fair value of loan servicing rights is estimated by calculating the present value of net servicing revenue over the anticipated life of each loan. A cash flow model is used to determine fair value. Key assumptions and estimates, including projected prepayment speeds and assumed servicing costs, earnings on escrow deposits, ancillary income, and discount rates, used by this model are based on current market sources. A separate third party model is used to estimate prepayment speeds based on interest rates, housing turnover rates, estimated loan curtailment, anticipated defaults, and other relevant factors. The prepayment model is updated for cha nges in market conditio ns. Core deposit premiums – Except for the 2014 branch sales, the fair value of core deposit premiums are based on third-party appraisals. Goodwill – Fair value of goodwill is based on the fair value of each of our reporting units to which goodwill is allocated compared with their respective carrying value. Assets that were measured at fair value on a nonrecurring basis as of June 30, 2015 and December 31, 2014 are summarized below. Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Total (Level 1) (Level 2) (Level 3) At June 30, 2015 Impaired loans at fair value : Commercial real estate $ $ - $ - $ One-to-four family residential - - - - Real estate construction - - Commercial - - Loans held for sale: One-to-four family residential - - Government guaranteed commercial real estate - - Other loans held for sale - - - - Mortgage loan servicing rights - - Other real estate - - Total $ $ - $ $ At December 31, 2014 Impaired loans at fair value : Commercial real estate $ $ - $ - $ Commercial - - Loans held for sale: One-to-four family residential - - Government guaranteed commercial real estate - - Other loans held for sale - - Other real estate - - Total $ $ - $ $ As of June 30, 2015, i mpaired loans measured at fair value with a carrying amount of $ 20.6 million were written down to a fair value of $ 17.0 million, resulting in a life-to-date impairment of $ 3.6 million . As of December 31, 2014 , impaired loans measured at fair value with a carrying amount of $ 21.9 million were written down to the fair value of $ 17.5 million at December 31, 2014 , resulting in a life-to-date impairment charge of $ 4.4 million . As of June 30, 2015 and December 31, 2014, other real estate assets were written down to their fair values, resulting in an impairment charge of $ 0.1 million and $ 0.6 million, respectively, which was included in noninterest expense . As of June 30, 2015 and December 31, 2014, mortgage servicing rights were written down to their fair values, resulting in an impairment charge of $0.1 million and $0 , respectively, which was included in noninterest expense. No impairment of core deposit premiums or goodwill were recognized during the periods ending June 30, 2015 or December 31, 2014. ASC 825, Financial Instruments , requires an entity to provide disclosures about fair value of financial instruments, including those that are not measured and reported at fair value on a recurring or nonrecurring basis. The methodologies used in estimating the fair value of financial instruments that are measured on a recurring or nonrecurring basis are discussed above. The methodologies for the other financial instruments are discussed below: Cash and cash equivalents – For cash and cash equivalents, the carrying amount is a reasonable estimate of fair value. Securities held to maturity – The investment securities held to maturity are carried at cost. The fair value of the held to maturity securities is estimated based on quoted market prices or dealer quotes. Loans, net of allowance – Fair values are estimated for certain homogenous categories of loans adjusted for differences in loan characteristics. Our loans have been aggregated by categories consisting of commercial, real estate, and other consumer. The fair value of loans is estimated by discounting the cash flows using risks inherent in the loan category and interest rates currently offered for loans with similar terms and credit risks. Accrued interest receivable – The carrying amount is a reasonable estimate of fair value for accrued interest receivable. Investments included in other assets – The estimated fair value of investments included in other assets, which primarily consists of investments carried at cost, approximates their carrying values. Deposits – The fair value of demand deposits, savings accounts, and certain money market deposits is the amount payable on demand at the statement of financial condition date. The fair value of fixed maturity certificates of deposit is estimated using the rates currently offered for deposits of similar remaining maturities. A ccrued interest payable and other liabilities – The estimated fair value of accrued interest payable and other liabilities, which primarily includes trade accounts payable, approximates their carrying values. Other borrowings – Included in other borrowings are FHLB advances and securities sold under agreements to repurchase. The fair value for fixed rate FHLB advances is based upon discounted cash flow analysis using interest rates currently being offered for similar instruments. The fair values of other borrowings are the amounts payable at the statement of financial condition date, as the carrying amount is a reasonable estimate of fair value due to the short-term maturity rates. Subordinated debentures – Our two subordinated debentures have floating rates that reset quarterly. The fair value of the floating rate subordinated debentures approximates carrying value at June 30, 2015 . The carrying values and estimated fair values of our financial instruments segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value were as follow s : At June 30, 2015 At December 31, 2014 Carrying Fair Carrying Fair (Dollars in thousands) Values Values Values Values Financial assets: Level 2 inputs: Cash and cash equivalents $ $ $ $ Securities held to maturity Accrued interest receivable Investments included in other assets Level 3 inputs: Total loans, net of allowance Financial liabilities: Level 2 inputs: Deposits Accrued interest payable Other liabilities Other borrowings Subordinated debentures

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2015
Derivative Instruments [Abstract]
Derivative Instruments	NOTE 5: DERIVATIVE INSTRUMENTS We utilize derivatives instruments to manage exposure to various types of interest rate risk for us and our customers within our policy guidelines. All derivative instruments are carried at fair value and credit risk is considered in determining fair value. Derivative contracts involve the risk of dealing with institutional derivative counterparties and their ability to meet contractual terms. Institutional counterparties must have an investment grade credit rating and be approved by our asset/liability management committee. Our credit exposure on interest rate swaps is limited to the net favorable value and interest payments of all swaps by each counterparty. Access to collateral in the event of default is reasonably assured. Therefore, c redit exposure may be reduced by the amount of collateral pledged by the counterparty. Customer Risk Management Interest Rate Swaps Our qualified customers have the opportunity to participate in our interest rate swap program for the purpose of managing interest rate risk on their variable rate loans with us. If we enter into such agreements with customers, then offsetting agreements are executed between us and approved dealer counterparties to minimize our market risk from changes in interest rates. The counterparty contracts are identical to customer contracts, except for a fixed pricing spread or fee paid to us by the dealer counterparty. These interest rate swaps carry varying degrees of credit, interest rate and market or liquidity risks. The fair value of derivative instruments are recognized as either assets or liabilities in the consolidated statements of financial condition. We have entered into three customer interest rate swap agreements that effectively convert the loan interest rate from floating rate based on LIBOR to a fixed rate for the customer. As of June 30, 2015, these loans had an outstanding balance o f $33.9 million. We have entered into offsetting agreement s with dealer counterparties . The following table summarizes the fair values of derivative contracts recorded as “non-hedge derivative assets” and “non-hedge derivative liabilities” in the consolidated statements of financial condition. As of June 30, 2015 At December 31, 2014 (Dollars in thousands) Notional Fair Value Notional Fair Value Non-hedge derivative assets $ $ $ $ Non-hedge derivative liabilities The margin rates to us in connection with these instru m ents are 2.97% , 2.87% , and 2.30% over th e one-month LIBOR. There was $ 0.4 million of collateral required to be post ed by us as of June 30, 2015 to dealer counterparties. We posted a security to cover the collateral required. These interest rate swaps are not designated as hedging instruments. Interest Rate Swap We have an interest rate swap agreement with a total notional amount of $ 25.0 million. The interest rate swap contract was designated as a hedging instrument in cash flow hedges with the objective of protecting the overall cash flow from our quarterly interest payments on the SBI Capital Trust II preferred securities throughout the seven year period beginning February 11, 2011 and ending April 7, 2018 from the risk of variability of those payments resulting from changes in the three-month London Interbank Offered Rate (“LIBOR”). Under the swap, we pay a fixed interest rate of 6.15 % and receive a variable interest rate of three-month LIBOR plus a margin of 2.85 % on a total notional amount of $ 25.0 million, with quarterly settlements. The rate received by us as of June 30, 2015 was 3.13 %. The estimated fair value of the interest rate swap contract outstanding as of June 30, 2015 and December 31, 2014 resulted in a pre-tax loss of $ 1.7 million and $ 1.6 million, respectively, and was inclu ded in other liabilities in the c onsolidated s tatement s of f inancial c ondition. We obtained the counte rparty valuation to validate the interest rate derivative contract as of June 30, 2015 and December 31, 2014 . The effective portion of our gain or loss due to changes in the fair value of the interest rate swap contract , a $ 51,000 loss and a $ 42,000 gain for the six months ended June 30, 2015 and June 30, 2014 , respectively, is included in other comprehensive income, net of tax, while the ineffective portion (indicated by the excess of the cumulative change in the fair value of the derivative over that which is necessary to offset the cumulative change in expected future cash flows on the hedge transaction) is included in other noninterest income or other noninterest expense. No ineffectiveness related to the interest rate derivative was recognized during either reporting period. Net cash out flows as a result of the interest rate swap contract were $ 0.4 million for both the six months ended June 30, 2015 and June 30, 2014 and were included in interest expense on subordinated debentures. The fair value of cash and securities posted as collateral by us related to the interest rate swap contract was $ 2.1 million at June 30, 2015 and December 31, 2014 . There are no credit-risk-related contingent features associated with our derivative contract.

Taxes On Income

Taxes On Income	6 Months Ended
	Jun. 30, 2015
Taxes On Income [Abstract]
Taxes On Income	NOTE 6 : TAXES ON INCOME Net deferred tax as sets totaled $ 12.7 million at June 30, 2015 and $ 14.1 million at December 31, 2014 . Net deferred tax assets are included in other assets and no valuation allowance is considered necessary. We or one of our subsidiaries file income tax returns in the U.S. federal jurisdiction and various state jurisdictions. We are no longer subject to U.S. federal or state tax examinations for years before 2011.

Shareholders' Equity

Shareholders' Equity	6 Months Ended
	Jun. 30, 2015
Shareholders' Equity [Abstract]
Shareholders' Equity	NOTE 7 : SHAREHOLDERS’ EQUITY Sto ck Repurchase Program On August 14, 2014, our Board of Directors (the “Board”) authorized the repurchase of up to 5.0%, or 990,000 shares, of our common stock. The share repurchases are expected to be made primarily on the open market from time to time until August 14, 2015. Repurchases under the program are available at the discretion of management based upon market, business, legal, and other factors. During t he second quarter of 2015, we repurchased no shares due to trade restrictions resulting from our pending acquisition of First Commercial Bancshares, Inc . As of June 3 0 , 2015, we had repurchased 867,310 shares for a total of $ 14.3 m illion. On February 24, 2015, our Board authorized a second share repurchase program of up to another 5.0% , or approximately 950,000 shares, of our common stock, effective upon the earlier of (i) the date we complete the repurchase of all of the shares we are authorized to repurchase under the current program, or (ii) August 14, 2015.

Earnings Per Common Share

Earnings Per Common Share	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Earnings Per Share	NOTE 8 : EARNINGS PER SHARE Earnings per common share is computed using the two-class method prescribed by ASC 260, Earnings Per Share . Using the two-class method, basic earnings per common share is computed based upon net income divided by the weighted average number of common shares outstanding during each period, which excludes outstanding unvested restricted stock. Diluted earnings per share is computed using the weighted average number of common shares determined for the basic earnings per common share computation plus the dilutive effect of stock compensation using the treasury stock method. The following table shows the computation of basic and diluted earnings per common share: For the three months For the six months ended June 30, ended June 30, (Dollars in thousands, except earnings per share data) 2015 2014 2015 2014 Numerator: Net income $ $ $ $ Earnings allocated to participating securities Numerator for basic earnings per common share $ $ $ $ Effect of reallocating undistributed earnings of participating securities Numerator for diluted earnings per common share $ $ $ $ Denominator: Denominator for basic earnings per common share Dilutive effect of stock compensation Denominator for diluted earnings per common share Earnings per common share: Basic $ $ $ $ Diluted $ $ $ $

Operating Segments

Operating Segments	6 Months Ended
	Jun. 30, 2015
Operating Segments [Abstract]
Operating Segments	NOTE 9: OPERATING SEGMENTS We operate four principal segments: Oklahoma Banking, Texas Banking, Kansas Banking, and Other Operations. The Oklahoma Banking segment provides deposit and lending services and consists of residential mortgage lending services to customers. The Texas Banking segment and the Kansas Banking segment provide deposit and lending services. Other Operations includes our funds management unit and corporate investments. Prior to the first quarter of 2015, we disclosed a Mortgage Banking segment, which included 1-4 family mortgages and the available for sale loans. For segment reporting, t he Mortgage Banking segment has been combined with and into the Oklahoma Banking segment due to those loans being managed from that location . Prior period numbers have also been adjusted to reflect this change. This adjustment has no financial statement impact. The primary purpose of the funds management unit is to manage our overall internal liquidity needs and interest rate risk. Each segment borrows funds from or provides funds to the funds management unit as needed to support its operations. The value of funds provided to and the cost of funds borrowed from the funds management unit by each segment are internally priced at rates that approximate market rates for funds with similar duration. The yield used in the funds transfer pricing curve is a blend of rates based on the volume usage of retail and brokered certificates of deposit and FHLB advances. The accounting policies of each reportable segment are the same as ours . Ex penses for consolidated back-office operations are allocated to operating segments based on estimated uses of those services. General overhead expenses such as executive administration, accounting, and audit are allocated based on the direct expense and/or deposit and loan volumes of the operating segment. Income tax expense for the operating segments is calculated at statutory rates. The Other Operations segment records the tax expense or benefit necessary to reconcile to the consolidated financial statements. The following table summarizes financial results by operating segment: For the three months ended June 30, 2015 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses Noninterest income Noninterest expenses Income (loss) before taxes Taxes on income (loss) Net income (loss) $ $ $ $ $ For the three months ended June 30, 2014 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income before taxes Taxes on income Net income $ $ $ $ $ For the six months ended June 30, 2015 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations* Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income (loss) before taxes Taxes on income (loss) Net income (loss) $ $ $ $ $ * Includes externally generated revenue of $0.7 million, primarily from investing services, and an internally generated loss of $1.0 million from the funds management unit. Total loans at period end $ $ $ $ - $ Total assets at period end Total deposits at period end For the six months ended June 30, 2014 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations* Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income before taxes Taxes on income Net income $ $ $ $ $ * Includes externally generated revenue of $0.5 million, primarily from investing services, and an internally generated revenue of $4.4 million from the funds management unit. Total loans at period end $ $ $ $ $ Total assets at period end Total deposits at period end

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies [Abstract]
Commitments and contingencies	NOTE 10 : COMMITMENTS AND CONTINGENCIES Other Agreements On May 27, 2015, we entered into an Agree ment and Plan of Reorganization (the “Agreement”) with First Commercial Bancshares, Inc. (“Bancshares”), an Oklahoma corporation, and First Commerci al Bank , an Oklahoma banking corporation and a wholly ‑owned subsidiary of Bancshares, pursuant to which Bancshares will merge with and into us (the “Merger”) . Under the terms of the Agreement, at the effective time of the Merger all outstanding shares of Bancshares common stock will be converted into the right to receive an aggregate merger consideration of $41.7 million, 51 % of which will be payable in shares of our common stock, representing an aggregate 1,214,087 shares of our common stock, plus cash in lieu of any fractional shares, and 49 % of which will be payable in cash in an aggregate amount equal to $20.4 million, subject to certain conditions and potential adjustments as described in the Agreement. The closing of the Merger is subje ct to customary closing conditions, including the receipt of regulatory approvals and approval of the shareholders of Bancshares. The closing of the Merger is expected to occur during the fourth quarter of 2015, although delays could occur. The Agreement also provides that, following the Merger and subject to regulatory approvals, we will cause First Commercial Bank to be merged with and into Bank SNB. Customer Ris k Management Interest Rate Swap On September 9, 2014, we entered into an agreement to provide one of our commercial borrowers a customer interest rate swap that effectively converts the loan interest rate from a floating rate based on LIBOR to a fixed rate for the customer. As of June 30, 2015, the floating rate loan had an outstanding balance of $ 16.5 m i llion. The option to execute the swap is conditional on compliance with the loan and swap agreements, and will be subject to the terms of the International Swaps and Derivatives Association Master Agreement. The fixed pay amount will be based on the market rates at the time of execution, and it is our intention to simultaneously execute an offsetting trade with an approved swap dealer counterparty with identical terms. Legal Action On March 18, 2011 , an action entitled Ubaldi, et al. v SLM Corporation (“Sallie Mae”), et al., Case No. 3:11-cv-01320 EDL (the “Ubaldi Case”) was filed in the U.S. District Court for the Northern District of California as a putative class action with respect to certain loans that the plaintiffs claim were made by Sallie Mae. The loans in question were made by various banks, including Bank SNB, and sold to Sallie Mae. Plaintiff s claim that Sallie Mae entered into arrangements with chartered banks in order to evade California law and that Sallie Mae is the de facto lender on the loans in question and, as the lender on such loan, Sallie Mae charged interest and late fees that violates California usury law and the California Business and Professions Code. Sallie Mae has denied all claims asserted against it and has stated that it intends to vigorously defend the action. On March 26, 2014, the Court denied the plaintiffs’ request to certify the class; however, the Court permitted the plaintiff s to amend the filing to redefine the class. Plaintiffs filed a renewed motion on June 23, 2014. On December 19, 2014, the Court issued a decision on the renewed motion, certifying a class with respect to claims of improper late fees, but denying class certification with respect to plaintiffs’ usury claims. Plaintiffs thereafter filed a motion seeking leave to amend their complaint to add addition al parties, which Sallie Mae opposed , and, on March 24, 2015, the Court denied the plaintiffs’ motion . On June 5, 2015, the law firm Cohen Milstein Sellers & Toll based in Washington, D.C. entered its appearance as co-counsel on behalf of plaintiffs. Bank SNB is not specifically named in the action. However, in the first quarter of 2014, Sallie Mae provided Bank SNB with a notice of claims that have been asserted against Sallie Mae in the Ubaldi Case (the “Notice”). Sallie Mae asserts in the Notice that Bank SNB may have indemnification and/or repurchase obligations pursuant to the ExportSS Agreement dated July 1, 2002 between Sallie Mae and Bank SNB, pursuant to which the loans in question were made by Bank SNB. Bank SNB has substantial defenses with respect to any claim for indemnification or repurchase ultimately made by Sallie Mae, if any, and intends to vigorously defend against any such claims. Due to the uncertainty regarding (i) the size and scope of the class, (ii) whether a class will ultimately be certified, (iii) the particular class members, (iv) the interest rate on loans made by Bank SNB charged to particular class members, (v) the late fees charged to particular class members, (vi) the time period that will ultimately be at issue if a class is certified in the Ubaldi Case, (vii) the theories, if any, under which the plaintiffs might prevail, (viii) whether Sallie Mae will make a claim against us for indemnification or repurchase, and (ix) the likelihood that Sallie Mae would prevail if it makes such a claim, we cannot estimate the amount or the range of losses that may arise as a result of the Ubaldi Case. In the normal course of business, we are at all times subject to various pending and threatened legal actions. The relief or damages sought in some of these actions may be substantial. After reviewing pending and threatened actions with counsel, management currently does not expect that the outcome of such actions will have a material adverse effect on our financial position; however, we are not able to predict whether the outcome of such actions may or may not have a material adverse effect on results of operations in a particular future period as the timing and amount of any resolution of such actions and relationship to the future results of operations are not known.

New Authoritative Accounting Gu

New Authoritative Accounting Guidance	6 Months Ended
	Jun. 30, 2015
New Authoritative Accounting Guidance [Abstract]
New Authoritative Accounting Guidance	NOTE 11 : NEW AUTHORITATIVE ACCOUNTING GUIDANCE In January 2015 , FASB issued Acc ounting Standard Update No. 2015-01 , Income Statement—Extraordinary and Unusual Items: Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items; (“ASU 2015-01 ”). The ASU does not require new recurring disclosures. The guidance becomes effective for us on January 1, 201 6 , and it is not expected to have a n impact on the financial statements. In February 2015 , FASB issued Acc ounting Standard Update No. 2015-02 , Consolidation: Amendments to the Consolidation Analysis; (“ASU 2015-02 ”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In April 2015, FASB issued Accounting Standard Update No. 2015-03, Interest—Imputation of Interest: Simplifying the Presentation of Debt Issuance Costs; (“ASU 2015-03”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In April 2015, FASB issued Accounting Standard Update No. 2015-04, Compensation—Retirement Benefits: Practical Expedient for the Measurement Date of an Employer’s Defined Benefit Obligation and Plan Assets; (“ASU 2015-04”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In April 2015, FASB issued Accounting Standard Update No. 2015-05, Intangibles—Goodwill and Other—Internal-Use Software: Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement; (“ASU 2015-05”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In April 2015, FASB issued Accounting Standard Update No. 2015-06, Earnings Per Share: Effects on Historical Earnings per Unit of Master Limited Partnership Dropdown Transactions; (“ASU 2015-06”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In May 2015, FASB issued Accounting Standard Update No. 2015-07, Fair Value Measurement: Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share; (“ASU 2015-07”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In May 2015, FASB issued Accounting Standard Update No. 2015-08, Business Combinations: Pushdown Accounting, Amendments to SEC Paragraphs Pursuant to Staff Accounting Bulletin No. 115; (“ASU 2015-08”). The ASU does not require new recurring disclosures. The guidance becomes effec tive upon issuance , and it is not expected to have a material impact on the financial statements. In May 2015, FASB issued Accounting Standard Update No. 2015-09, Financial Services—Insurance: Disclosures about Short-Duration Contracts; (“ASU 2015-09”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 , and it is not expected to have a material impact on the financial statements. In June 2015, FASB issued Accounting Standard Update No. 2015-10, Technical Corrections and Improvements; (“ASU 2015-10”). The ASU does not require new recurring disclosures. The guidance becomes effec tive for us on January 1, 2016 for transition guidance and upon issuance for all other , and it is not expected to have a material impact on the financial statements.

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2015
Investment Securities [Abstract]
Summary Of Amortized Cost And Fair Values Of Investment Securities	Amortized Gross Unrealized Fair (Dollars in thousands) Cost Gains Losses Value At June 30, 2015 Held to Maturity: Obligations of state and political subdivisions $ $ $ $ Total $ $ $ $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities Other securities Total $ $ $ $ At December 31, 2014 Held to Maturity: Obligations of state and political subdivisions $ $ $ $ Total $ $ $ $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities - Other securities Total $ $ $ $
Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date	Available for Sale Held to Maturity Amortized Fair Amortized Fair (Dollars in thousands) Cost Value Cost Value One year or less $ $ $ - $ - More than one year through five years More than five years through ten years More than ten years - - Total $ $ $ $
Summary Of Securities With Gross Unrealized Losses And Their Fair Values	Continuous Unrealized Amortized cost of Loss Existing for: Fair value of Number of securities with Less Than More Than securities with (Dollars in thousands) Securities unrealized losses 12 Months 12 Months unrealized losses At June 30, 2015 Held to Maturity: Obligations of state and political subdivisions $ $ $ - $ $ $ $ - $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions Residential mortgage-backed securities Asset-backed securities - Other securities Total $ $ $ $ At December 31, 2014 Held to Maturity: Obligations of state and political subdivisions $ $ $ - $ $ $ $ - $ Available for Sale: Federal agency securities $ $ $ $ Obligations of state and political subdivisions - Residential mortgage-backed securities Asset-backed securities Other securities Total $ $ $ $

Loans And Allowance For Loan 21

Loans And Allowance For Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2015
Loans And Allowance For Loan Losses [Abstract]
Southwest's Loan Classifications	(Dollars in thousands) At June 30, 2015 At December 31, 2014 Real estate mortgage: Commercial $ $ One-to-four family residential Real estate construction: Commercial One-to-four family residential Commercial Installment and consumer: Guaranteed student loans - Other Less: Allowance for loan losses Total loans, net Less: Loans held for sale (included above) Net loans receivable $ $
Changes In The Carrying Amounts And Accretable Yields For ASC 310.30 Loans	For the three months ended June 30, 2015 2014 Carrying Carrying Accretable amount Accretable amount (Dollars in thousands) Yield of loans Yield of loans Balance at beginning of period $ $ $ $ Payments received - - Net charge-offs - - Net reclassifications to / from nonaccretable amount - - - Accretion - Balance at end of period $ $ $ $ For the six months ended June 30, 2015 2014 Carrying Carrying Accretable amount Accretable amount (Dollars in thousands) Yield of loans Yield of loans Balance at beginning of period $ $ $ $ Payments received - - Net charge-offs - - Net reclassifications to / from nonaccretable amount - - - Accretion - Balance at end of period $ $ $ $
Recorded Investment In Loans On Nonaccrual Status	(Dollars in thousands) At June 30, 2015 At December 31, 2014 Real estate mortgage: Commercial $ $ One-to-four family residential Real estate construction: Commercial Commercial Other consumer - Total nonaccrual loans $ $
Age Analysis Of Past Due Loans	90 days and Recorded loans 30-89 days greater Total past Total > 90 days and (Dollars in thousands) past due past due due Current loans accruing At June 30, 2015 Real estate mortgage: Commercial $ $ $ $ $ $ - One-to-four family residential - Real estate construction: Commercial - - One-to-four family residential - - - - Commercial - Other - - Total $ $ $ $ $ - At December 31, 2014 Real estate mortgage: Commercial $ $ $ $ $ $ - One-to-four family residential - Real estate construction: Commercial - One-to-four family residential - - - - Commercial Other - Total $ $ $ $ $
Impaired Loans	With No Specific Allowance With A Specific Allowance Unpaid Unpaid Recorded Principal Recorded Principal Related (Dollars in thousands) Investment Balance Investment Balance Allowance At June 30, 2015 Commercial real estate $ $ $ $ $ One-to-four family residential - - - Real estate construction - - - Commercial Other - - - - - Total $ $ $ $ $ At December 31, 2014 Commercial real estate $ $ $ $ $ One-to-four family residential - - - Real estate construction - - - Commercial Other - - - Total $ $ $ $
Average Recorded Investment And Interest Income Recognized On Impaired Loans	As of and for the six months ended June 30, 2015 2014 Average Average Recorded Interest Recorded Interest (Dollars in thousands) Investment Income Investment Income Commercial real estate $ $ $ $ One-to-four family residential Real estate construction - - Commercial Other - - Total $ $ $ $
Troubled Debt Restructured Loans Outstanding	At June 30, 2015 At December 31, 2014 (Dollars in thousands) Accruing Nonaccrual Accruing Nonaccrual Commercial real estate $ $ $ $ One-to-four family residential Commercial Total $ $ $ $
Loans Modified As Troubled Debt Restructurings	For the three months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Modifications Investment Modifications Investment Commercial - $ - $ Total - $ - $ For the six months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Modifications Investment Modifications Investment Commercial real estate - $ - $ Commercial - - Total - $ - $
Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted	For the three months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Contracts Investment Contracts Investment Commercial - $ - $ Total - $ - $ For the six months ended June 30, 2015 2014 Number of Recorded Number of Recorded (Dollars in thousands) Contracts Investment Contracts Investment Commercial - $ - $ Total - $ - $
Classification Of Risk Category Of Loans, By Classes	Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2015 Grade: Pass $ $ $ $ $ $ Special Mention Substandard - Doubtful - - - - Total $ $ $ $ $ $ At December 31, 2014 Grade: Pass $ $ $ $ $ $ Special Mention Substandard Doubtful - - Total $ $ $ $ $ $
By Balance In The Allowance For Loan Losses And The Recorded Investment In Loans Portfolio Classification Disaggregated On The Basis Of Impairment Evaluation Method	Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2015 Balance at beginning of period $ $ $ $ $ $ Loans charged-off Recoveries Provision for loan losses Balance at end of period $ $ $ $ $ $ Allowance for loan losses ending balance: Individually evaluated for impairment $ $ - $ - $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - - - - - - Total ending allowance balance $ $ $ $ $ $ Loans receivable ending balance: Individually evaluated for impairment $ $ $ $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - Total ending loans balance $ $ $ $ $ $ Commercial 1-4 Family Real Estate (Dollars in thousands) Real Estate Residential Construction Commercial Other Total At June 30, 2014 Balance at beginning of period $ $ $ $ $ $ Loans charged-off Recoveries - Provision for loan losses Balance at end of period $ $ $ $ $ $ Allowance for loan losses ending balances: Individually evaluated for impairment $ $ - $ - $ $ - $ Collectively evaluated for impairment Acquired with deteriorated credit quality - - - - - - Total ending allowance balance $ $ $ $ $ $ Loans receivable ending balance: Individually evaluated for impairment $ $ $ $ $ $ Collectively evaluated for impairment Acquired with deteriorated credit quality Total ending loans balance $ $ $ $ $ $

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Measurements [Abstract]
Summary Of Financial Assets Measured At Fair Value On A Recurring Basis	Fair Value Measurement at Reporting Date Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Total (Level 1) (Level 2) (Level 3) At June 30, 2015 Available for sale securities: Federal agency securities $ $ - $ $ - Obligations of state and political subdivisions - - Residential mortgage-backed securities - - Asset-backed securities - - Other securities - Derivative asset - - Derivative liability - - Total $ $ $ $ - At December 31, 2014 Available for sale securities: Federal agency securities $ - - Obligations of state and political subdivisions - - Residential mortgage-backed securities - - Asset-backed securities - - Other securities - Derivative asset - - Derivative liability - - Total $ $ $ $ -
Asset Measured At Fair Value On A Nonrecurring Basis	Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs (Dollars in thousands) Total (Level 1) (Level 2) (Level 3) At June 30, 2015 Impaired loans at fair value : Commercial real estate $ $ - $ - $ One-to-four family residential - - - - Real estate construction - - Commercial - - Loans held for sale: One-to-four family residential - - Government guaranteed commercial real estate - - Other loans held for sale - - - - Mortgage loan servicing rights - - Other real estate - - Total $ $ - $ $ At December 31, 2014 Impaired loans at fair value : Commercial real estate $ $ - $ - $ Commercial - - Loans held for sale: One-to-four family residential - - Government guaranteed commercial real estate - - Other loans held for sale - - Other real estate - - Total $ $ - $ $
Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs	At June 30, 2015 At December 31, 2014 Carrying Fair Carrying Fair (Dollars in thousands) Values Values Values Values Financial assets: Level 2 inputs: Cash and cash equivalents $ $ $ $ Securities held to maturity Accrued interest receivable Investments included in other assets Level 3 inputs: Total loans, net of allowance Financial liabilities: Level 2 inputs: Deposits Accrued interest payable Other liabilities Other borrowings Subordinated debentures

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Derivative Instruments [Abstract]
Non-Hedge Derivative Assets and Liabilities	As of June 30, 2015 At December 31, 2014 (Dollars in thousands) Notional Fair Value Notional Fair Value Non-hedge derivative assets $ $ $ $ Non-hedge derivative liabilities

Earnings Per Common Share (Tabl

Earnings Per Common Share (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Computation Of Basic And Diluted Earnings Per Common Share	For the three months For the six months ended June 30, ended June 30, (Dollars in thousands, except earnings per share data) 2015 2014 2015 2014 Numerator: Net income $ $ $ $ Earnings allocated to participating securities Numerator for basic earnings per common share $ $ $ $ Effect of reallocating undistributed earnings of participating securities Numerator for diluted earnings per common share $ $ $ $ Denominator: Denominator for basic earnings per common share Dilutive effect of stock compensation Denominator for diluted earnings per common share Earnings per common share: Basic $ $ $ $ Diluted $ $ $ $

Operating Segments (Tables)

Operating Segments (Tables)	6 Months Ended
	Jun. 30, 2015
Operating Segments [Abstract]
Financial Results By Operating Segment	For the three months ended June 30, 2015 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses Noninterest income Noninterest expenses Income (loss) before taxes Taxes on income (loss) Net income (loss) $ $ $ $ $ For the three months ended June 30, 2014 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income before taxes Taxes on income Net income $ $ $ $ $ For the six months ended June 30, 2015 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations* Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income (loss) before taxes Taxes on income (loss) Net income (loss) $ $ $ $ $ * Includes externally generated revenue of $0.7 million, primarily from investing services, and an internally generated loss of $1.0 million from the funds management unit. Total loans at period end $ $ $ $ - $ Total assets at period end Total deposits at period end For the six months ended June 30, 2014 Oklahoma Texas Kansas Other Total (Dollars in thousands) Banking Banking Banking Operations* Company Net interest income (loss) $ $ $ $ $ Provision (credit) for loan losses - Noninterest income Noninterest expenses Income before taxes Taxes on income Net income $ $ $ $ $ * Includes externally generated revenue of $0.5 million, primarily from investing services, and an internally generated revenue of $4.4 million from the funds management unit. Total loans at period end $ $ $ $ $ Total assets at period end Total deposits at period end

Investment Securities (Narrativ

Investment Securities (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Investment Securities [Abstract]
Total investments carried at cost	$ 7,900		$ 7,900		$ 7,900
Gain (Loss) on Sale of Securities, Net	138	$ 629	143	$ 764
Available for sale debt securities amortized cost pledged as collateral	$ 212,300		$ 212,300		$ 218,500

Investment Securities (Summary

Investment Securities (Summary Of Amortized Cost And Fair Values Of Investment Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Held to Maturity	$ 11,364	$ 12,362
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	460	528
Gross Unrealized Losses, Held to Maturity	(6)	(10)
Fair Value, Held to Maturity	11,818	12,880
Amortized Cost, Available for Sale	360,609	352,275
Gross Unrealized Gains, Available for Sale	2,616	2,804
Gross Unrealized Losses, Available for Sale	(1,329)	(1,848)
Available-for-sale Securities	361,896	353,231
Federal Agency Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	83,508	99,959
Gross Unrealized Gains, Available for Sale	474	359
Gross Unrealized Losses, Available for Sale	(269)	(772)
Available-for-sale Securities	83,713	99,546
Obligations Of State And Political Subdivisions [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Held to Maturity	11,364	12,362
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	460	528
Gross Unrealized Losses, Held to Maturity	(6)	(10)
Fair Value, Held to Maturity	11,818	12,880
Amortized Cost, Available for Sale	32,546	32,760
Gross Unrealized Gains, Available for Sale	524	519
Gross Unrealized Losses, Available for Sale	(123)	(140)
Available-for-sale Securities	32,947	33,139
Residential Mortgage-Backed Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	202,438	177,391
Gross Unrealized Gains, Available for Sale	1,350	1,686
Gross Unrealized Losses, Available for Sale	(809)	(850)
Available-for-sale Securities	202,979	178,227
Asset-Backed Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	9,624	9,608
Gross Unrealized Gains, Available for Sale	10
Gross Unrealized Losses, Available for Sale	(21)	(60)
Available-for-sale Securities	9,613	9,548
Other Securities [Member]
Held To Maturity Securities And Available For Sale Securities [Line Items]
Amortized Cost, Available for Sale	32,493	32,557
Gross Unrealized Gains, Available for Sale	258	240
Gross Unrealized Losses, Available for Sale	(107)	(26)
Available-for-sale Securities	$ 32,644	$ 32,771

Investment Securities (Amortize

Investment Securities (Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amortized cost and approximate fair value [Abstract]
One year or less, Amortized cost, Available for Sale	$ 14,014
One year or less, Fair Value, Available for Sale	14,114
More than one year through five years, Amortized Cost, Available for Sale	229,893
More than one year through five years, Fair Value, Available for Sale	230,710
More than one year through five years, Amortized Cost, Held to Maturity	8,017
More than one year through five years, Fair Value, Held to Maturity	8,189
More than five years through ten years, Amortized Cost, Available for Sale	75,395
More than five years through ten years, Fair Value, Available for Sale	75,457
More than five years through ten years, Amortized Cost, Held to Maturity	3,347
More than five years through ten years, Fair Value, Held to Maturity	3,629
More than ten years, Amortized Cost, Available for Sale	41,307
More than ten years, Fair Value, Available for Sale	41,615
Total, Amortized Cost, Available for Sale	360,609
Total, Fair Value, Available for Sale	361,896
Held-to-maturity Securities, Total	11,364	$ 12,362
Fair Value, Held to Maturity	$ 11,818	$ 12,880

Investment Securities (Summar29

Investment Securities (Summary Of Securities With Gross Unrealized Losses And Their Fair Values) (Details) $ in Thousands	Jun. 30, 2015USD ($)security	Dec. 31, 2014USD ($)security
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	66	66
Number of Securities, Held to Maturity | security	1	1
Amortized cost of securities with unrealized losses, Available for Sale	$ 160,331	$ 155,056
Amortized cost of securities with unrealized losses, Held to Maturity	1,698	1,718
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(474)	(169)
Continuous Unrealized Loss Existing for Less Than 12 Months, Held to Maturity	(6)	(10)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(855)	(1,679)
Fair value of securities with unrealized losses, Available for Sale	159,002	153,208
Fair value of securities with unrealized losses, Held to Maturity	$ 1,692	$ 1,708
Federal Agency Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	7	13
Amortized cost of securities with unrealized losses, Available for Sale	$ 32,900	$ 60,578
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(47)	(37)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(221)	(735)
Fair value of securities with unrealized losses, Available for Sale	$ 32,632	$ 59,806
Obligations Of State And Political Subdivisions [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	7	8
Number of Securities, Held to Maturity | security	1	1
Amortized cost of securities with unrealized losses, Available for Sale	$ 9,102	$ 10,076
Amortized cost of securities with unrealized losses, Held to Maturity	1,698	1,718
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(43)
Continuous Unrealized Loss Existing for Less Than 12 Months, Held to Maturity	(6)	(10)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(81)	(140)
Fair value of securities with unrealized losses, Available for Sale	8,978	9,936
Fair value of securities with unrealized losses, Held to Maturity	$ 1,692	$ 1,708
Residential Mortgage-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	46	40
Amortized cost of securities with unrealized losses, Available for Sale	$ 105,680	$ 65,223
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(326)	(110)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(483)	(740)
Fair value of securities with unrealized losses, Available for Sale	$ 104,871	$ 64,373
Asset-Backed Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	2	3
Amortized cost of securities with unrealized losses, Available for Sale	$ 5,671	$ 9,608
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(21)	(19)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale		(41)
Fair value of securities with unrealized losses, Available for Sale	$ 5,650	$ 9,548
Other Securities [Member]
Available-for-sale Securities and Held-to-maturity Securities
Number of Securities, Available for Sale | security	4	2
Amortized cost of securities with unrealized losses, Available for Sale	$ 6,978	$ 9,571
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	(37)	(3)
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	(70)	(23)
Fair value of securities with unrealized losses, Available for Sale	$ 6,871	$ 9,545

Loans And Allowance For Loan 30

Loans And Allowance For Loan Losses (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 19, 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: Allowance for loan losses, covered			$ (35)
Loans held for sale	$ 6.7	$ 1.5
Actual loss period	3 years
Period to sell loans from the date of closing	1 month
Accrued additional interest income	$ 0.3
Troubled debt restructuring default period	90 days
Troubled debt restructuring Period	12 months
Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal of mortgage loans serviced for others	$ 416	$ 410.3
Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 485.7
Percentage of loans to individuals and businesses	34.00%
Healthcare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 422.3
Percentage of loans to individuals and businesses	29.00%
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days for independent appraisals on real estate collateral	30 days
Covered [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reimbursement Ratio			95.00%
Covered [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reimbursement Ratio			80.00%

Loans And Allowance For Loan 31

Loans And Allowance For Loan Losses (Southwest's Loan Classifications) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 1,449,430	$ 1,399,991
Less: Allowance for loan losses	(26,219)	(28,452)
Total loans, net	1,423,211	1,371,539
Less: Loans held for sale (included above)	(6,687)	(1,485)
Net loans receivable	1,416,524	1,370,054
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	384,788	350,410
Commercial Real Estate [Member] | Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	759,406	752,971
Commercial Real Estate [Member] | Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	186,140	186,659
One-To-Four Family Residential [Member] | Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	85,338	77,531
One-To-Four Family Residential [Member] | Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	13,107	10,464
Guaranteed Student Loans [Member] | Installment And Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable		37
Other [Member] | Installment And Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 20,651	$ 21,919

Loans And Allowance For Loan 32

Loans And Allowance For Loan Losses (Changes In The Carrying Amounts And Accretable Yields For ASC 310.30 Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Loans And Allowance For Loan Losses [Abstract]
Balance at beginning of period, Accretable Yield	$ 419	$ 1,503	$ 540	$ 1,597
Net charge-offs, Accretable Yield		(5)		(9)
Net reclassifications to / from nonaccretable amount, Accretable Yield	240		240
Accretion, Accretable yield	(198)	(638)	(319)	(728)
Balance at end of period, Accretable Yield	461	860	461	860
Balance at beginning of period, Carrying amount of loans	4,310	15,053	4,971	16,427
Payments Received, Carrying amount of loans	(208)	(6,766)	(869)	(8,099)
Net charged-offs, Carrying amount of loans		(367)		(408)
Accretion, Carrying amount of loans	442		442
Balance at end of period, Carrying amount of loans	$ 4,544	$ 7,920	$ 4,544	$ 7,920

Loans And Allowance For Loan 33

Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 8,887	$ 9,276
Real Estate Mortgage [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	2,141	2,195
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	1,216	1,100
Real Estate Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	416	73
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans	$ 5,114	5,907
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total nonaccrual loans		$ 1

Loans And Allowance For Loan 34

Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 9,904	$ 17,086
Current	1,439,526	1,382,905
Loans receivable	1,449,430	1,399,991	$ 1,351,700
Recorded loans > 90 days and accruing		137
30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,017	7,673
90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	8,887	9,413
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	88	163
Current	20,563	21,793
Loans receivable	20,651	21,956
Other [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	88	162
Other [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		1
Real Estate Mortgage [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,708	6,248
Current	756,698	746,723
Loans receivable	759,406	752,971
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	567	4,053
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	2,141	2,195
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,337	1,222
Current	84,001	76,309
Loans receivable	85,338	77,531
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	121	122
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	1,216	1,100
Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans receivable	199,247	197,123	175,340
Real Estate Construction [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	416	2,250
Current	185,724	184,409
Loans receivable	186,140	186,659
Real Estate Construction [Member] | Commercial Real Estate [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due		2,177
Real Estate Construction [Member] | Commercial Real Estate [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	416	73
Real Estate Construction [Member] | One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	13,107	10,464
Loans receivable	13,107	10,464
Commercial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	5,355	7,203
Current	379,433	343,207
Loans receivable	384,788	350,410	$ 300,163
Recorded loans > 90 days and accruing		137
Commercial [Member] | 30 Days To 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	241	1,159
Commercial [Member] | 90 Days And Greater Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total past due	$ 5,114	$ 6,044

Loans And Allowance For Loan 35

Loans And Allowance For Loan Losses (Impaired Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	$ 14,475	$ 16,195
With No Specific Allowance Unpaid Principal Balance	17,719	19,578
With A Specific Allowance Recorded Investment	15,056	15,812
With A Specific Allowance Unpaid Principal Balance	21,169	22,229
With A Specific Allowance Related Allowance	3,535	3,869
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	10,684	12,382
With No Specific Allowance Unpaid Principal Balance	12,940	14,752
With A Specific Allowance Recorded Investment	11,317	11,497
With A Specific Allowance Unpaid Principal Balance	11,317	11,556
With A Specific Allowance Related Allowance	1,875	2,047
One-To-Four Family Residential [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	1,229	1,115
With No Specific Allowance Unpaid Principal Balance	1,792	1,833
Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	416	73
With No Specific Allowance Unpaid Principal Balance	416	104
Commercial [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment	2,146	2,624
With No Specific Allowance Unpaid Principal Balance	2,571	2,887
With A Specific Allowance Recorded Investment	3,739	4,315
With A Specific Allowance Unpaid Principal Balance	9,852	10,673
With A Specific Allowance Related Allowance	$ 1,660	1,822
Other [Member]
Financing Receivable, Impaired [Line Items]
With No Specific Allowance Recorded Investment		1
With No Specific Allowance Unpaid Principal Balance		$ 2

Loans And Allowance For Loan 36

Loans And Allowance For Loan Losses (Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 32,096	$ 56,766
Interest Income	494	706
Commercial Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	23,862	43,104
Interest Income	473	663
One-To-Four Family Residential [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,777	3,649
Interest Income	1	1
Real Estate Construction [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	376	251
Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	6,080	9,693
Interest Income	20	42
Other [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 1	$ 69

Loans And Allowance For Loan 37

Loans And Allowance For Loan Losses (Troubled Debt Restructured Loans Outstanding) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Modifications [Line Items]
Accruing	$ 20,645	$ 22,731
Nonaccrual	1,361	1,799
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Accruing	19,861	21,685
Nonaccrual	967	1,082
One-To-Four Family Residential [Member]
Financing Receivable, Modifications [Line Items]
Accruing	13	14
Nonaccrual	54	62
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Accruing	771	1,032
Nonaccrual	$ 340	$ 655

Loans And Allowance For Loan 38

Loans And Allowance For Loan Losses (Loans Modified As Troubled Debt Restructurings) (Details) - Jun. 30, 2014 $ in Thousands	USD ($)contract	USD ($)contract
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	2	5
Recorded Investment	$ 9,684	$ 9,913
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract		2
Recorded Investment		$ 9,684
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Modifications | contract	2	3
Recorded Investment	$ 9,684	$ 229

Loans And Allowance For Loan 39

Loans And Allowance For Loan Losses (Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted) (Details) - Jun. 30, 2014 $ in Thousands	USD ($)contract	USD ($)contract
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment	$ 205	$ 205
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts | contract	1	1
Recorded Investment	$ 205	$ 205

Loans And Allowance For Loan 40

Loans And Allowance For Loan Losses (Classification Of Risk Category Of Loans, By Classes) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 1,449,430	$ 1,399,991	$ 1,351,700
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,364,183	1,315,226
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	41,876	41,979
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	38,690	37,507
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,681	5,279
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	759,406	752,971	769,021
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	707,216	690,791
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	30,073	34,287
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	22,117	27,594
Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable		299
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	85,338	77,531	79,542
One-To-Four Family Residential [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	84,016	76,322
One-To-Four Family Residential [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	22	22
One-To-Four Family Residential [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,300	1,154
One-To-Four Family Residential [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable		33
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	199,247	197,123	175,340
Real Estate Construction [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	198,607	194,670
Real Estate Construction [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	221	420
Real Estate Construction [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	419	2,033
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	384,788	350,410	300,163
Commercial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	353,823	331,594
Commercial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	11,430	7,144
Commercial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	14,854	6,725
Commercial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,681	4,947
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	20,651	21,956	$ 27,634
Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	20,521	21,849
Other [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 130	106
Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable		$ 1

Loans And Allowance For Loan 41

Loans And Allowance For Loan Losses (By Balance In The Allowance For Loan Losses And The Recorded Investment In Loans Portfolio Classification Disaggregated On The Basis Of Impairment Evaluation Method) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			$ 28,452	$ 36,663
Loans charged-off			(556)	(5,383)
Recoveries			1,346	3,144
Provision (credit) for loan losses	$ (1,136)	$ (355)	(3,023)	(1,341)
Balance at end of period	26,219	33,083	26,219	33,083
Individually evaluated for impairment	3,535	6,223
Collectively evaluated for impairment	22,684	26,860
Acquired with deteriorated credit quality	26,219	33,083	28,452	36,663	$ 28,452
Individually evaluated for impairment	27,591	52,049
Collectively evaluated for impairment	1,417,295	1,291,731
Total ending loans balance	1,449,430	1,351,700			1,399,991
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	4,544	7,920
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			13,678	18,854
Loans charged-off			(116)	(683)
Recoveries			151	2,343
Provision (credit) for loan losses			(448)	(3,538)
Balance at end of period	13,265	16,976	13,265	16,976
Individually evaluated for impairment	1,875	3,598
Collectively evaluated for impairment	11,390	13,378
Acquired with deteriorated credit quality	13,265	16,976	13,678	18,854	13,678
Individually evaluated for impairment	20,886	42,588
Collectively evaluated for impairment	735,587	720,559
Total ending loans balance	759,406	769,021			752,971
Commercial Real Estate [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	2,933	5,874
One-To-Four Family Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			712	850
Loans charged-off			(20)	(126)
Recoveries			443	146
Provision (credit) for loan losses			(557)	(238)
Balance at end of period	578	632	578	632
Collectively evaluated for impairment	578	632
Acquired with deteriorated credit quality	578	632	712	850	712
Individually evaluated for impairment	404	387
Collectively evaluated for impairment	83,438	77,284
Total ending loans balance	85,338	79,542			77,531
One-To-Four Family Residential [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	1,496	1,871
Real Estate Construction [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			4,159	5,523
Loans charged-off			(21)	(655)
Recoveries			31
Provision (credit) for loan losses			(509)	418
Balance at end of period	3,660	5,286	3,660	5,286
Collectively evaluated for impairment	3,660	5,286
Acquired with deteriorated credit quality	3,660	5,286	4,159	5,523	4,159
Individually evaluated for impairment	416	82
Collectively evaluated for impairment	198,738	175,132
Total ending loans balance	199,247	175,340			197,123
Real Estate Construction [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	93	126
Commercial [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			9,614	10,985
Loans charged-off			(343)	(3,514)
Recoveries			583	595
Provision (credit) for loan losses			(1,313)	1,742
Balance at end of period	8,541	9,808	8,541	9,808
Individually evaluated for impairment	1,660	2,625
Collectively evaluated for impairment	6,881	7,183
Acquired with deteriorated credit quality	8,541	9,808	9,614	10,985	9,614
Individually evaluated for impairment	5,885	8,873
Collectively evaluated for impairment	378,881	291,242
Total ending loans balance	384,788	300,163			350,410
Commercial [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance	22	48
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Balance at beginning of period			289	451
Loans charged-off			(56)	(405)
Recoveries			138	60
Provision (credit) for loan losses			(196)	275
Balance at end of period	175	381	175	381
Collectively evaluated for impairment	175	381
Acquired with deteriorated credit quality	175	381	$ 289	$ 451	289
Individually evaluated for impairment		119
Collectively evaluated for impairment	20,651	27,514
Total ending loans balance	$ 20,651	27,634			$ 21,956
Other [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Recorded Investment [Line Items]
Total ending loans balance		$ 1

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Impaired loans carrying amount	$ 20,600,000	$ 21,900,000
Impaired loans measured at fair value	17,000,000	17,500,000
Impaired loans life to date impairment	3,600,000	4,400,000
Covered And Noncovered [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment charge of other real estate assets	100,000	600,000
Mortgage Servicing Rights (MSR) Impairment (Recovery)	$ 100,000	$ 0

Fair Value Measurements (Summar

Fair Value Measurements (Summary Of Financial Assets Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	$ 361,896	$ 353,231
Derivative liability	(701)	(787)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	701	787
Total Assets at Fair Value on a recurring basis	360,226	351,645
Fair Value, Measurements, Recurring [Member] | Federal Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	83,713	99,546
Fair Value, Measurements, Recurring [Member] | Obligations Of State And Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	32,947	33,139
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	202,979	178,227
Fair Value, Measurements, Recurring [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9,613	9,548
Fair Value, Measurements, Recurring [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	32,644	32,771
Fair Value, Measurements, Recurring [Member] | Derivative Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	(2,371)	(2,373)
Fair Value, Measurements, Recurring [Member] | Level 1 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets at Fair Value on a recurring basis	139	142
Fair Value, Measurements, Recurring [Member] | Level 1 Inputs [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	139	142
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative asset	701	787
Total Assets at Fair Value on a recurring basis	360,087	351,503
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Federal Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	83,713	99,546
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Obligations Of State And Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	32,947	33,139
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Residential Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	202,979	178,227
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	9,613	9,548
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Other Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities	32,505	32,629
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Derivative Instrument [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability	$ (2,371)	$ (2,373)

Fair Value Measurements (Asset

Fair Value Measurements (Asset Measured At Fair Value On A Nonrecurring Basis) (Details) - Fair Value Measurements Nonrecurring [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 29,714	$ 22,066
Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	11,739	11,762
One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	6,065	763
Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	390
Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	4,875	5,722
Other loans held for sale [Member]
Noncovered impaired loans at fair value:
Loans held for sale		17
Government Guaranteed Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Loans held for sale	622	705
Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	2,393	3,097
Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	3,630
Level 2 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	10,317	1,485
Level 2 Inputs [Member] | One-To-Four Family Residential [Member]
Noncovered impaired loans at fair value:
Loans held for sale	6,065	763
Level 2 Inputs [Member] | Other loans held for sale [Member]
Noncovered impaired loans at fair value:
Loans held for sale		17
Level 2 Inputs [Member] | Government Guaranteed Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Loans held for sale	622	705
Level 2 Inputs [Member] | Mortgage Loan Servicing Rights [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	3,630
Level 3 Inputs [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	19,397	20,581
Level 3 Inputs [Member] | Commercial Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	11,739	11,762
Level 3 Inputs [Member] | Real Estate Construction [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	390
Level 3 Inputs [Member] | Commercial [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	4,875	5,722
Level 3 Inputs [Member] | Other Real Estate [Member]
Noncovered impaired loans at fair value:
Assets fair value, Total	$ 2,393	$ 3,097

Fair Value Measurements (Carryi

Fair Value Measurements (Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Financial Assets:
Held to maturity securities, fair value	$ 11,818	$ 12,880
Accrued interest receivable	4,281	4,723
Derivative Asset, Noncurrent	701	787
Financial Liabilities:
Accrued interest payable	774	769
Derivative instrument	701	787
Other borrowings	75,839	79,380
Carrying Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	156,688	140,936
Held to maturity securities, fair value	11,364	12,362
Accrued interest receivable	4,281	4,723
Investments included in other assets	7,949	7,949
Financial Liabilities:
Deposits	1,624,446	1,533,999
Accrued interest payable	774	769
Other liabilities	8,077	8,334
Other borrowings	75,839	79,380
Subordinated debentures	46,393	46,393
Carrying Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	1,423,211	1,371,539
Fair Values [Member] | Level 2 Inputs [Member]
Financial Assets:
Cash and cash equivalents	156,688	140,936
Held to maturity securities, fair value	11,818	12,880
Accrued interest receivable	4,281	4,723
Investments included in other assets	7,949	7,949
Financial Liabilities:
Deposits	1,534,880	1,450,540
Accrued interest payable	774	769
Other liabilities	8,077	8,334
Other borrowings	77,622	81,544
Subordinated debentures	46,393	46,393
Fair Values [Member] | Level 3 Inputs [Member]
Financial Assets:
Total loans, net of allowance	$ 1,353,264	$ 1,303,047

Derivative Instruments (Details

Derivative Instruments (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2015USD ($)item	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Derivative [Line Items]
Interest payment period	7 years
Fixed interest rate	6.15%
Rate received by Southwest	3.13%
Pretax loss related to derivative contracts	$ 1,700,000		$ 1,600,000
Gain or loss due to changes in the fair value of the derivative hedging instrument	51,000	$ 42,000
Net cash flows as a result of the interest rate swap agreement	400,000	$ 400,000
Fair Value Net of Cash Collateral	400,000
Interest Rate Swap on Trust Preferred Securities [Member]
Derivative [Line Items]
Interest rate swap agreement Notional amount	$ 25,000,000
Variable interest rate	2.85%
The fair value of cash and securities posted as collateral	$ 2,100,000		2,100,000
Customer Risk Management Swaps [Member]
Derivative [Line Items]
Number of customer interest rate swap agreements | item	3
Interest rate swap agreement Notional amount	$ 33,900,000
Customer Risk Management Swap 1 [Member]
Derivative [Line Items]
Variable interest rate	2.97%
Customer Risk Management Swap 2 [Member]
Derivative [Line Items]
Variable interest rate	2.87%
Customer Risk Management Swap 3 [Member]
Derivative [Line Items]
Variable interest rate	2.30%
Non-Hedge Derivative Asset [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount	$ 33,935,000		34,322,000
Non-hedge derivative asset, fair value	701,000		787,000
Non-Hedge Derivative Liability [Member]
Derivative [Line Items]
Derivative Liability, Notional Amount	33,935,000		34,322,000
Non-hedge derivative liability, fair value	$ 701,000		$ 787,000

Taxes On Income (Details)

Taxes On Income (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Taxes On Income [Abstract]
Net deferred tax assets	$ 12.7	$ 14.1

Shareholders' Equity (Details)

Shareholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Treasury Stock Value	$ 14,342	$ 14,342	$ 10,302
2014 Stock Repurchase Program [Member]
Stock Repurchase Program Authorized Percent Of Common Stock	5.00%	5.00%
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	990,000	990,000
Treasury Stock, Shares, Acquired	0	867,310
2015 Stock Repurchase Program [Member]
Stock Repurchase Program Authorized Percent Of Common Stock	5.00%	5.00%
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	950,000	950,000

Earnings Per Common Share (Deta

Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Numerator:
Net income	$ 4,161	$ 6,152	$ 8,696	$ 9,843
Earnings allocated to participating securities	(73)	(80)	(143)	(119)
Numerator for basic earnings per common share	4,088	6,072	8,553	9,724
Effect of reallocating undistributed earnings of participating securities	73	80	143	119
Numerator for diluted earnings per common share	$ 4,161	$ 6,152	$ 8,696	$ 9,843
Denominator:
Denominator for basic earnings per common share	18,666,853	19,520,967	18,714,088	19,524,859
Effect of dilutive securities:
Stock compensation	197,124	143,867	172,332	130,767
Denominator for diluted earnings per common share	18,863,977	19,664,834	18,886,420	19,655,626
Earnings per common share:
Basic	$ 0.22	$ 0.31	$ 0.46	$ 0.50
Diluted	$ 0.22	$ 0.31	$ 0.46	$ 0.50

Operating Segments (Narrative)

Operating Segments (Narrative) (Details)	6 Months Ended
	Jun. 30, 2015segment
Operating Segments [Abstract]
Number of principal segments	4

Operating Segments (Financial R

Operating Segments (Financial Results By Operating Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Financial results by operating segment
Net interest income	$ 15,791	$ 16,574	$ 31,401	$ 32,575
Provision (credit) for loan losses	(1,136)	(355)	(3,023)	(1,341)
Noninterest income	3,409	8,246	6,249	11,271
Noninterest expenses	13,982	15,332	27,064	29,439
Income before taxes	6,354	9,843	13,609	15,748
Taxes on income (loss)	2,193	3,691	4,913	5,905
Net income	4,161	6,152	8,696	9,843
Externally generated revenue from investing activities			700	500
Internally generated loss from fund management			1,000	4,400
Total loans at period end	1,449,430	1,351,700	1,449,430	1,351,700
Total assets at period end	2,031,581	1,885,158	2,031,581	1,885,158
Total deposits at period end	1,624,446	1,463,855	1,624,446	1,463,855
Oklahoma Banking [Member] | Operating Segments [Member]
Financial results by operating segment
Net interest income	9,299	9,497	19,034	18,473
Provision (credit) for loan losses	(689)	(1,464)	(1,922)	483
Noninterest income	2,386	2,332	4,425	4,449
Noninterest expenses	7,698	7,871	15,043	15,452
Income before taxes	4,676	5,422	10,338	6,987
Taxes on income (loss)	1,609	2,034	3,732	2,620
Net income	3,067	3,388	6,606	4,367
Total loans at period end	810,368	798,065	810,368	798,065
Total assets at period end	824,073	807,002	824,073	807,002
Total deposits at period end	1,134,020	1,086,659	1,134,020	1,086,659
Texas Banking [Member] | Operating Segments [Member]
Financial results by operating segment
Net interest income	4,793	4,457	10,013	9,089
Provision (credit) for loan losses	(283)	1,449	(533)	(2,483)
Noninterest income	278	243	587	539
Noninterest expenses	3,793	3,232	7,228	6,460
Income before taxes	1,561	19	3,905	5,651
Taxes on income (loss)	531	7	1,410	2,119
Net income	1,030	12	2,495	3,532
Total loans at period end	493,047	408,385	493,047	408,385
Total assets at period end	491,442	405,524	491,442	405,524
Total deposits at period end	226,498	206,031	226,498	206,031
Kansas Banking [Member] | Operating Segments [Member]
Financial results by operating segment
Net interest income	1,731	3,075	3,194	5,455
Provision (credit) for loan losses	(165)	(340)	(568)	659
Noninterest income	329	420	631	901
Noninterest expenses	1,606	2,658	3,215	5,286
Income before taxes	619	1,177	1,178	411
Taxes on income (loss)	216	441	425	154
Net income	403	736	753	257
Total loans at period end	146,015	145,247	146,015	145,247
Total assets at period end	147,302	147,644	147,302	147,644
Total deposits at period end	126,671	111,615	126,671	111,615
Other Operations [Member] | Operating Segments [Member]
Financial results by operating segment
Net interest income	(32)	(455)	(840)	(442)
Provision (credit) for loan losses	1
Noninterest income	416	5,251	606	5,382
Noninterest expenses	885	1,571	1,578	2,241
Income before taxes	(502)	3,225	(1,812)	2,699
Taxes on income (loss)	(163)	1,209	(654)	1,012
Net income	(339)	2,016	(1,158)	1,687
Total loans at period end		3		3
Total assets at period end	568,764	524,988	568,764	524,988
Total deposits at period end	$ 137,257	$ 59,550	$ 137,257	$ 59,550

Commitments And Contingencies (

Commitments And Contingencies (Narrative) (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total	Total
Loan Balance of Swap Commitment	$ 16.5	$ 16.5
Loss Contingency, Lawsuit Filing Date		March 18, 2011
Business Acquisition, Percentage of Voting Interests Acquired	51.00%	51.00%
Business Acquisition, Percentage of Cash	49.00%	49.00%
Business Combination, Consideration Transferred	$ 41.7
Payments to Acquire Businesses, Gross	$ 20.4
Common Stock [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	1,214,087