Southwest Bancorp (OKSB) 10-Q 1 Nov 13 2013 Q3 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013
Document And Entity Information [Abstract]	'	'
Entity Registrant Name	'SOUTHWEST BANCORP INC	'
Entity Central Index Key	'0000914374	'
Document Type	'10-Q	'
Document Period End Date	30-Sep-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Current Fiscal Year End Date	'--12-31	'
Trading Symbol	'oksb	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	19,703,458

Consolidated_Statements_Of_Fin

Consolidated Statements Of Financial Condition (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Cash and due from banks	$31,043	$45,045
Interest-bearing deposits	214,241	243,034
Cash and cash equivalents	245,284	288,079
Securities held to maturity (fair values of $12,177 and $13,659, respectively)	11,739	12,797
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	370,262	364,315
Loans held for sale	3,641	31,682
Noncovered loans receivable	1,284,004	1,321,346
Less: Allowance for loan losses	-40,013	-46,494
Net noncovered loans receivable	1,243,991	1,274,852
Covered loans receivable (includes loss share: $4,282 and $6,714, respectively)	18,980	25,707
Less: Allowance for loan losses	-68	-224
Net covered loans receivable	18,912	25,483
Net loans receivable	1,262,903	1,300,335
Accrued interest receivable	5,725	6,365
Income tax receivable	1,807	24,525
Premises and equipment, net	21,283	21,691
Noncovered other real estate	676	11,315
Covered other real estate	1,017	3,643
Goodwill	1,214	1,214
Other intangible assets, net	5,022	4,864
Other assets	41,794	51,430
Total assets	1,972,367	2,122,255
Deposits:	'	'
Noninterest-bearing demand	436,904	424,008
Interest-bearing demand	106,176	112,012
Money market accounts	423,720	423,417
Savings accounts	39,727	37,693
Time deposits of $100,000 or more	270,916	351,273
Other time deposits	306,348	361,175
Total deposits	1,583,791	1,709,578
Accrued interest payable	840	1,116
Other liabilities	9,878	13,180
Other borrowings	78,663	70,362
Subordinated debentures	46,393	81,963
Total liabilities	1,719,565	1,876,199
Shareholders' equity:	'	'
Common stock - $1 par value; 40,000,000 shares authorized; 19,703,313, 19,529,705, shares issued and outstanding, respectively	19,703	19,530
Paid in capital	99,488	99,705
Retained earnings	135,696	125,093
Accumulated other comprehensive income (loss)	-2,085	1,728
Total shareholders' equity	252,802	246,056
Total liabilities & shareholders' equity	$1,972,367	$2,122,255

Consolidated_Statements_Of_Fin1

Consolidated Statements Of Financial Condition (Parenthetical) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Consolidated Statements Of Financial Condition [Abstract]	'	'	'
Held to maturity securities, fair value	$12,177	'	$13,659
Available for sale securities, amortized cost	371,433	'	358,317
Covered loans receivable, loss share	$4,282	'	$6,714
Common stock, par value	$1	'	$1
Common stock, shares authorized	'	40,000,000	40,000,000
Common stock, shares issued	19,703,313	'	19,529,705
Common stock, shares outstanding	19,703,313	'	19,529,705

Consolidated_Statements_Of_Ope

Consolidated Statements Of Operations (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest income:	'	'	'	'
Interest and fees on loans	$16,242	$20,496	$49,663	$65,581
Investment securities:	'	'	'	'
U.S. Government and agency obligations	438	438	1,336	1,242
Mortgage-backed securities	820	1,141	2,520	3,779
State and political subdivisions	300	288	906	757
Other securities	65	67	146	241
Other interest-earning assets	270	186	765	563
Total interest income	18,135	22,616	55,336	72,163
Interest expense:	'	'	'	'
Interest-bearing demand	35	49	117	178
Money market accounts	182	230	608	750
Savings accounts	10	13	34	39
Time deposits of $100,000 or more	552	1,037	1,863	3,542
Other time deposits	538	922	1,789	3,180
Other borrowings	225	225	667	671
Subordinated debentures	1,320	1,458	4,245	4,525
Total interest expense	2,862	3,934	9,323	12,885
Net interest income	15,273	18,682	46,013	59,278
Provision for loan losses	-329	-1,726	-707	22
Net interest income after provision for loan losses	15,602	20,408	46,720	59,256
Noninterest income:	'	'	'	'
Service charges and fees	2,589	2,730	7,856	8,588
Gain on sales of loans, net	619	1,106	2,264	2,223
Gain on sale/call of investment securities, net	'	'	'	35
Other noninterest income	339	114	455	219
Total noninterest income	3,547	3,950	10,575	11,065
Noninterest expense:	'	'	'	'
Salaries and employee benefits	7,645	7,362	23,820	21,963
Occupancy	2,721	2,729	7,974	7,909
FDIC and other insurance	413	539	1,304	2,021
Other real estate, net	-387	1,267	-1,428	3,698
General and administrative	2,627	2,694	8,576	10,078
Total noninterest expense	13,019	14,591	40,246	45,669
Income (loss) before taxes	6,130	9,767	17,049	24,652
Taxes on income	2,330	3,880	6,446	9,437
Net income	3,800	5,887	10,603	15,215
Net income available to common shareholders	$3,800	$4,344	$10,603	$11,476
Basic earnings per common share	$0.19	$0.22	$0.53	$0.59
Diluted earnings per common share	$0.19	$0.22	$0.54	$0.59
Common dividends declared per share	'	'	'	'

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statements Of Comprehensive Income [Abstract]	'	'	'	'
Net income	$3,800	$5,887	$10,603	$15,215
Other comprehensive income:	'	'	'	'
Unrealized holding gain (loss) on available for sale securities	-419	691	-7,169	982
Reclassification adjustment for net gains arising during the period	'	'	'	-35
Change in fair value of derivative used for cash flow hedge	-524	-210	993	-532
Other comprehensive loss, before tax	-943	481	-6,176	415
Tax benefit (expense) related to items of other comprehensive income (loss)	369	-178	2,363	-179
Other comprehensive loss, net of tax	-574	303	-3,813	236
Comprehensive income	$3,226	$6,190	$6,790	$15,451

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Operating activities:	'	'
Net income	$10,603	$15,215
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Provision for loan losses	-707	22
Adjustments to other real estate	1,970	2,108
Deferred tax expense	6,043	8,704
Asset depreciation	1,802	1,822
Securities premium amortization, net of discount accretion	2,793	2,308
Amortization of intangibles	1,037	1,250
Stock based compensation expense	647	28
Net gain on sales/calls of investment securities	'	-35
Net gain on sales of available for sale loans	-2,264	-2,223
Net gains on sales of premises/equipment	-7	-4
Net gain on sales of other real estate	-3,880	-38
Proceeds from sales of held for sale loans	109,493	109,222
Held for sale loans originated for resale	-106,148	-110,393
Net changes in assets and liabilities:	'	'
Accrued interest receivable	640	-171
Other assets	5,783	1,842
Income taxes receivable / payable	22,718	4,056
Excess Tax Benefit from Share-based Compensation, Operating Activities	'	-61
Accrued interest payable	-276	-2,745
Other liabilities	-2,759	2,217
Net cash provided by operating activities	47,488	33,246
Investing activities:	'	'
Proceeds from sales of available for sale securities	2,744	6,588
Held to maturity securities	5,000	2,250
Available for sale securities	90,406	55,854
Redemptions (purchases) of other investments	382	179
Purchases of held to maturity securities	-5,000	'
Purchases of available for sale securities	-107,995	-172,165
Principal repayments, net of loans originated	64,609	271,523
Purchases of premises and equipment	-1,455	-1,462
Proceeds from sales of premises and equipment	68	147
Proceeds from sales of other real estate	16,107	6,111
Net cash provided by investing activities	64,866	169,025
Financing activities:	'	'
Net decrease in deposits	-125,787	-177,709
Net increase in other borrowings	8,301	10,215
Net proceeds from issuance of common stock	194	36
Repurchase of common stock warrant	-2,287	'
Redemptions of preferred stock	'	-70,000
Redemption of trust preferred securities	-35,570	'
Excess tax expense from share-based payment arrangements	'	-61
Preferred stock dividends paid	'	-4,405
Net cash used in financing activities	-155,149	-241,924
Net increase in cash and cash equivalents	-42,795	-39,653
Cash and cash equivalents:	'	'
Beginning of period	288,079	229,889
End of period	$245,284	$190,236

Consolidated_Statement_Of_Shar

Consolidated Statement Of Shareholders' Equity (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income	Total
In Thousands, except Share data, unless otherwise specified
Beginning balance at Dec. 31, 2011	$68,455	$19,444	$98,932	$112,647	$2,111	$301,589
Beginning balance, Shares at Dec. 31, 2011	'	19,444,213	'	'	'	'
Dividends (paid and/ or accrued):	'	'	'	'	'	'
Preferred	'	'	'	-2,194	'	-2,194
Warrant amortization	-68,455	'	'	-1,545	'	-70,000
Net common stock issued under employee plans and related tax expense	'	4	-29	'	'	-25
Net common stock issued under employee plans and related tax expense, shares	'	4,099	'	'	'	'
Other comprehensive loss, net of tax	'	'	'	'	236	236
Net income	'	'	'	15,215	'	15,215
Ending balance at Sep. 30, 2012	'	19,448	98,903	124,123	2,347	244,821
Ending balance, Shares at Sep. 30, 2012	'	19,448,312	'	'	'	'
Beginning balance at Dec. 31, 2012	'	19,530	99,705	125,093	1,728	246,056
Beginning balance, Shares at Dec. 31, 2012	'	19,529,705	'	'	'	19,529,705
Dividends (paid and/ or accrued):	'	'	'	'	'	'
Warrant repurchase	'	'	-2,287	'	'	-2,287
Common stock issued	'	171	2,049	'	'	2,220
Common stock issued, shares	'	171,846	'	'	'	'
Net common stock issued under employee plans and related tax expense	'	2	21	'	'	23
Net common stock issued under employee plans and related tax expense, shares	'	1,762	'	'	'	'
Other comprehensive loss, net of tax	'	'	'	'	-3,813	-3,813
Net income	'	'	'	10,603	'	10,603
Ending balance at Sep. 30, 2013	'	$19,703	$99,488	$135,696	($2,085)	$252,802
Ending balance, Shares at Sep. 30, 2013	'	19,703,313	'	'	'	19,703,313

Significant_Accounting_And_Rep

Significant Accounting And Reporting Policies	9 Months Ended
	Sep. 30, 2013
Significant Accounting And Reporting Policies [Abstract]	'
Significant Accounting And Reporting Policies	'
	NOTE 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 nine months ended September 30, 2013, and the cash flows for the nine months ended September 30, 2013, 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, 2012.
	The accompanying unaudited consolidated financial statements include the accounts of Southwest Bancorp, Inc. (“we”, “our”, “us”, “Southwest”), our wholly owned financial institution subsidiaries, Stillwater National Bank and Trust Company (“Stillwater National”) and Bank of Kansas, SNB Capital Corporation, a lending and loan workout subsidiary, and consolidated subsidiaries of Stillwater National, 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	9 Months Ended
	Sep. 30, 2013
Investment Securities [Abstract]	'
Investment Securities	'
	NOTE 2:  INVESTMENT SECURITIES
	A summary of the amortized cost and fair values of investment securities at September 30, 2013 and December 31, 2012 follows:
		Amortized			Gross Unrealized						Fair
	(Dollars in thousands)	Cost			Gains			Losses			Value
	At September 30, 2013
	Held to Maturity:
	Obligations of state and political subdivisions	$	11,739		$	438		$	-		$	12,177
	Total	$	11,739		$	438		$	-		$	12,177
	Available for Sale:
	Federal agency securities	$	125,713		$	426		$	-2,126		$	124,013
	Obligations of state and political subdivisions		33,791			41			-771			33,061
	Residential mortgage-backed securities		180,296			1,950			-1,494			180,752
	Asset-backed securities		9,571			-			-77			9,494
	Other securities		22,062			978			-98			22,942
	Total	$	371,433		$	3,395		$	-4,566		$	370,262
	At December 31, 2012
	Held to Maturity:
	Obligations of state and political subdivisions	$	12,797		$	862		$	-		$	13,659
	Total	$	12,797		$	862		$	-		$	13,659
	Available for Sale:
	Federal agency securities	$	114,159		$	1,474		$	-19		$	115,614
	Obligations of state and political subdivisions		34,754			887			-83			35,558
	Residential mortgage-backed securities		200,310			3,668			-303			203,675
	Asset-backed securities		7,794			-			-123			7,671
	Other securities		1,300			497			-			1,797
	Total	$	358,317		$	6,526		$	-528		$	364,315
	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 capital market CDs, corporate stock, and other corporate securities.
	Securities with limited marketability, 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 unaudited consolidated statement of financial condition.  Total investments carried at cost were $8.1 million at September 30, 2013 and $8.5 million at December 31, 2012.  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 September 30, 2013 follows:
		Available for Sale						Held to Maturity
		Amortized			Fair			Amortized			Fair
	(Dollars in thousands)	Cost			Value			Cost			Value
	One year or less	$	18,028		$	18,359		$	1,002		$	1,006
	More than one year through five years		193,019			194,303			940			957
	More than five years through ten years		133,658			130,914			6,388			6,563
	More than ten years		26,728			26,686			3,409			3,651
	Total	$	371,433		$	370,262		$	11,739		$	12,177
	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 method.  Sales of securities available for sale were as follows:
			For the three months						For the nine months
			ended September 30,						ended September 30,
	(Dollars in thousands)		2013			2012			2013			2012
	Proceeds from sales	$	-		$	-		$	-		$	6,588
	Gross realized gains		-			-			-			45
	Gross realized losses		-			-			-			-10
	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 September 30, 2013 and December 31, 2012.  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 September 30, 2013
	Available for Sale:
	Federal agency securities	31		$	79,468		$	-2,126		$	-		$	77,342
	Obligations of state and political subdivisions	21			28,621			-611			-160			27,850
	Residential mortgage-backed securities	52			89,562			-1,137			-357			88,068
	Asset-backed securities	5			9,571			-77			-			9,494
	Other securities	5			20,005			-98			-			19,907
	Total	114		$	227,227		$	-4,049		$	-517		$	222,661
	At December 31, 2012
	Available for Sale:
	Federal agency securities	5		$	9,887		$	-19		$	-		$	9,868
	Obligations of state and political subdivisions	9			10,457			-83			-			10,374
	Residential mortgage-backed securities	23			46,787			-288			-15			46,484
Asset-backed securities	4			7,794			-123			-			7,671
Total	41		$	74,925		$	-513		$	-15		$	74,397
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 in the table above until they mature, at which time we expect to receive full value for the securities.  Furthermore, as of September 30, 2013, 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 September 30, 2013, 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 $290.1 million and $284.2 million were pledged to meet such requirements at September 30, 2013 and December 31, 2012, respectively.  Any amount over-pledged can be released at any time.

Loans_And_Allowance_For_Loan_L

Loans And Allowance For Loan Losses	9 Months Ended
	Sep. 30, 2013
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 Oklahoma, 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 collectability of our loan portfolio can be affected by changes in the economic conditions in those states and markets.  Please see Note 8: Operating Segments for more detail regarding loans by market.  At September 30, 2013 and December 31, 2012, substantially all of our loans 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:
		At September 30, 2013				At December 31, 2012
	(Dollars in thousands)	Noncovered		Covered		Noncovered		Covered
	Real estate mortgage:
	Commercial	$	743,858	$	13,578	$	870,975	$	18,298
	One-to-four family residential		80,561		4,084		70,954		4,881
	Real estate construction:
	Commercial		162,995		311		130,753		382
	One-to-four family residential		4,464		-		3,656		-
	Commercial		263,598		967		240,498		2,037
	Installment and consumer:
	Guaranteed student loans		4,471		-		4,680		-
	Other		27,698		40		31,512		109
			1,287,645		18,980		1,353,028		25,707
	Less: Allowance for loan losses		-40,013		-68		-46,494		-224
	Total loans, net	$	1,247,632	$	18,912	$	1,306,534	$	25,483
	Concentrations of Credit.  At September 30, 2013, $456.5 million, or 35%, of our noncovered loans consisted of loans to individuals and businesses in the healthcare industry.  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 $3.6 million and $31.7 million at September 30, 2013 and December 31, 2012, respectively.  The decline from year-end is due to the first quarter reclassification of the guaranteed student loans and the United States Department of Agriculture government guaranteed commercial real estate loans back into the loan portfolio because we are not actively looking to sell these loans.  These loans were reclassified at their respective book value which approximated fair value.  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 the one-to-four family residential loans and loan servicing rights are primarily 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 $383.4 million and $329.2 million at September 30, 2013 and 2012, 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 Loans.  On June 19, 2009, Bank of Kansas entered into a purchase and assumption agreement 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 of Kansas and the FDIC entered into loss sharing agreements that provide Bank of Kansas with significant protection against credit losses from loans and related assets acquired in the transaction.  Under these agreements, the FDIC will reimburse Bank of Kansas 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 of Kansas services the covered assets.
	Loans covered under the loss sharing agreements with the FDIC, including the amounts of expected reimbursements from the FDIC under these agreements, are reported in loans and are referred to as “covered” loans.  Covered 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 covered loans reflect only losses incurred after the acquisition.
	The expected payments from the FDIC under the loss sharing agreements are recorded as part of the covered loans in the Unaudited Consolidated Statement of Financial Condition.
	Changes in the carrying amounts and accretable yields for ASC 310.30, Receivables: Loans and Debt Securities Acquired with Deteriorated Credit Quality, loans were as follows for the three and nine months ended September 30, 2013 and September 30, 2012.
		For the three months ended September 30,
		2013					2012
				Carrying				Carrying
		Accretable		amount		Accretable		amount
	(Dollars in thousands)	Yield		of loans		Yield		of loans
	Balance at beginning of period	$	1,580	$	21,646	$	1,758	$	30,712
	Payments received		-		-2,697		-		-1,409
	Transfers to other real estate / repossessed assets		-		-		21		-1,202
	Net charge-offs		-		-		-		-
	Accretion		-137		31		-102		96
	Balance at end of period	$	1,443	$	18,980	$	1,677	$	28,197
		For the nine months ended September 30,
		2013				2012
				Carrying				Carrying
		Accretable		amount		Accretable		amount
	(Dollars in thousands)	Yield		of loans		Yield		of loans
	Balance at beginning of period	$	1,904	$	25,707	$	2,402	$	37,615
	Payments received		-		-6,527		-		-7,269
	Transfers to other real estate / repossessed assets		-33		-375		27		-2,365
	Net charge-offs		-1		-70		-5		-112
	Net reclassifications to / from nonaccretable amount		-		-		-271		-
	Accretion		-427		245		-476		328
	Balance at end of period	$	1,443	$	18,980	$	1,677	$	28,197
	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 interest is ninety  days 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, 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 federal 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 not brought current, but 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.  Purchased nonperforming loans also may be returned to accrual status without becoming fully current.  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 that have not been identified as nonperforming or potential problem loans.  Because the loan portfolio contains a significant number of commercial 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.
		At September 30, 2013				At December 31, 2012
	(Dollars in thousands)	Noncovered		Covered		Noncovered		Covered
	Real estate mortgage:
	Commercial	$	12,203	$	3,175	$	18,337	$	3,087
	One-to-four family residential		396		71		563		52
	Real estate construction:
	Commercial		5,659		130		3,355		130
	Commercial		10,886		104		12,761		324
	Other consumer		54		-		88		2
	Total nonaccrual loans	$	29,198	$	3,480	$	35,104	$	3,595
	During the first nine months of 2013,  an immaterial amount of interest income was received on nonaccruing loans.  If interest on all nonaccrual loans had been accrued for the nine months ended September 30, 2013, additional interest income of $1.5 million would have been recorded.
Net cumulative charge-offs against noncovered nonaccrual loans at September 30, 2013 and December 31, 2012 were $12.0 million and $8.3 million, respectively.
Included in noncovered nonaccrual loans are five and six collateral dependent lending relationships with aggregate principal balances of approximately $24.5 million and $31.2 million  as of September 30, 2013 and December 31, 2012, respectively.  Related impairment reserves as of September 30, 2013 and December 31, 2012 were $3.0 million and $6.8 million, respectively.  These impairment reserves were established either based on recent appraisal values obtained for the respective properties or the discounted present value of expected cash flows using the loan’s initial effective interest rate.  At September 30, 2013,  three of the five lending relationships were secured by commercial real estate.
The following table shows an age analysis of past due loans at September 30, 2013 and December 31, 2012.
			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 September 30, 2013
Noncovered:
Real estate mortgage:
Commercial	$	24,105	$	12,203	$	36,308	$	707,550	$	743,858	$	-
One-to-four family residential		105		396		501		80,060		80,561		-
Real estate construction:
Commercial		-		5,659		5,659		157,336		162,995		-
One-to-four family residential		-		-		-		4,464		4,464		-
Commercial		1,009		10,887		11,896		251,702		263,598		1
Other		148		55		203		31,966		32,169		1
Total - noncovered		25,367		29,200		54,567		1,233,078		1,287,645		2
Covered:
Real estate mortgage:
Commercial		1,189		3,175		4,364		9,214		13,578		-
One-to-four family residential		-		71		71		4,013		4,084		-
Real estate construction:
Commercial		-		130		130		181		311		-
Commercial		-		104		104		863		967		-
Other		-		-		-		40		40		-
Total - covered		1,189		3,480		4,669		14,311		18,980		-
Total	$	26,556	$	32,680	$	59,236	$	1,247,389	$	1,306,625	$	2
At December 31, 2012
Noncovered:
Real estate mortgage:
Commercial	$	23,348	$	18,337	$	41,685	$	829,290	$	870,975	$	-
One-to-four family residential		1,479		1,310		2,789		68,165		70,954		747
Real estate construction:
Commercial		3,501		3,355		6,856		123,897		130,753		-
One-to-four family residential		-		-		-		3,656		3,656		-
Commercial		7,358		15,232		22,590		217,908		240,498		2,471
Other		538		160		698		35,494		36,192		72
Total - noncovered		36,224		38,394		74,618		1,278,410		1,353,028		3,290
Covered:
Real estate mortgage:
Commercial real estate		1,090		3,087		4,177		14,121		18,298		-
One-to-four family residential		-		52		52		4,829		4,881		-
Real estate construction:
Commercial		-		130		130		252		382		-
Commercial		-		324		324		1,713		2,037		-
Other		-		2		2		107		109		-
Total - covered		1,090		3,595		4,685		21,022		25,707		-
Total	$	37,314	$	41,989	$	79,303	$	1,299,432	$	1,378,735	$	3,290
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 one-hundred thousand, 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, homogeneous loans, including mortgage, student, and consumer, are collectively evaluated for impairment.
Interest payments on impaired loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case 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 September 30, 2013
Noncovered:
Commercial real estate	$	30,334	$	30,761	$	15,586	$	15,836	$	4,343
One-to-four family residential		396		507		-		-		-
Real estate construction		5,659		9,920		-		-		-
Commercial		5,861		8,561		6,802		8,594		4,295
Other		5		7		49		75		49
Total noncovered	$	42,255	$	49,756	$	22,437	$	24,505	$	8,687
Covered:
Commercial real estate	$	7,280	$	8,343	$	776	$	828	$	19
One-to-four family residential		55		55		45		96		4
Real estate construction		130		308		-		-		-
Commercial		127		215		-		-		-
Total covered	$	7,592	$	8,921	$	821	$	924	$	23
At December 31, 2012
Noncovered:
Commercial real estate	$	29,425	$	30,340	$	24,630		27,397	$	5,094
One-to-four family residential		563		653		7		7		7
Real estate construction		3,970		7,841		232		256		50
Commercial		3,337		6,975		13,422		13,448		6,492
Other		7		8		81		100		81
Total noncovered	$	37,302	$	45,817	$	38,372		41,208	$	11,724
Covered:
Commercial real estate	$	4,325	$	5,347	$	2,214		3,979	$	22
One-to-four family residential		20		25		52		98		2
Real estate construction		130		308		-		-		-
Commercial		322		1,884		2		3		1
Other		2		4		-		-		-
Total covered	$	4,799	$	7,568	$	2,268	$	4,080	$	25
The average recorded investment and interest income recognized on impaired loans as of September 30, 2013 and September 30, 2012 is shown in the following table:
	As of and for the nine months ended September 30,
	2013				2012
	Average				Average
	Recorded		Interest		Recorded		Interest
(Dollars in thousands)	Investment		Income		Investment		Income
Noncovered:
Commercial real estate	$	46,403	$	1,315	$	32,735	$	-
One-to-four family residential		338		-		736		28
Real estate construction		5,362		-		4,596		9
Commercial		12,312		74		4,398		7
Other		67		-		110		-
Total noncovered	$	64,482	$	1,389	$	42,575	$	44
Covered:
Commercial real estate	$	16,004	$	213	$	22,017	$	21
One-to-four family residential		4,419		1		5,854		-
Real estate construction		344		-		2,168		38
Commercial		1,627		-		2,244		-
Other		75		-		173		-
Total covered	$	22,469	$	214	$	32,456	$	59
Troubled Debt Restructurings.  Our loan portfolio also includes certain loans that have been modified in a troubled debt restructuring, 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 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 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.  In periods subsequent to modification, all loans modified in troubled debt restructurings are evaluated, including those that have payment defaults, for possible impairment.
Troubled debt restructured loans outstanding as of September 30, 2013 and December 31, 2012 were as follows:
	At September 30, 2013				At December 31, 2012
(Dollars in thousands)	Accruing		Nonaccrual		Accruing		Nonaccrual
Commercial real estate	$	37,452	$	11,324	$	39,170	$	2,953
One-to-four family residential		17		110		27		134
Real estate construction		-		130		847		130
Commercial		1,777		1,586		3,998		351
Consumer		-		49		-		81
Total	$	39,246	$	13,199	$	44,042	$	3,649
At September 30, 2013 and December 31, 2012, 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 nine months ended September 30, 2013 and September 30, 2012 are shown in the following table:
	For the three months ended September 30,
	2013				2012
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Modifications		Investment		Modifications		Investment
Commercial real estate		-	$	-		1	$	249
Commercial		-		-		1		782
Total		-	$	-		2	$	1,031
	For the nine months ended September 30,
	2013				2012
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Modifications		Investment		Modifications		Investment
Commercial real estate		7	$	2,881		6	$	13,952
One-to-four family residential		-		-		2		110
Real estate construction		-		-		1		864
Commercial		5		1,820		4		2,519
Total		12	$	4,701		13	$	17,445
The modifications of loans identified as troubled debt restructurings primarily related to 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 nine months ended September 30, 2013 and September 30, 2012.  Default, for this purpose, is deemed to occur when a loan is 90 days or more past due or transferred to nonaccrual and is within twelve months of restructuring.
	For the three months ended September 30,
	2013				2012
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Contracts		Investment		Contracts		Investment
Commercial		-	$	-		2	$	48
Real estate construction		-		-		1		130
Total		-	$	-		3	$	178
	For the nine months ended September 30,
	2013				2012
	Number of		Recorded		Number of		Recorded
(Dollars in thousands)	Contracts		Investment		Contracts		Investment
Commercial real estate		1	$	535		-	$	-
Real estate construction		-		-		1		130
Commercial		1		1,033		4		160
Total		2	$	1,568		5	$	290
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 September 30, 2013 and December 31, 2012, 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 September 30, 2013
Grade:
Pass	$	594,625	$	81,632	$	117,078	$	239,870	$	32,032	$	1,065,237
Special Mention		82,955		2,129		22,727		3,761		123		111,695
Substandard		77,430		853		27,965		14,880		54		121,182
Doubtful		2,426		31		-		6,054		-		8,511
Total	$	757,436	$	84,645	$	167,770	$	264,565	$	32,209	$	1,306,625
At December 31, 2012
Grade:
Pass	$	718,054	$	71,975	$	83,350	$	208,019	$	35,897	$	1,117,295
Special Mention		88,167		1,901		25,964		7,047		181		123,260
Substandard		80,104		1,923		25,477		26,887		223		134,614
Doubtful		2,948		36		-		582		-		3,566
Total	$	889,273	$	75,835	$	134,791	$	242,535	$	36,301	$	1,378,735
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 commercial real estate and real estate construction pools are 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 defaulting to 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 covered and noncovered 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 September 30, 2013
Balance at beginning of period	$	27,223	$	861	$	5,271	$	12,604	$	759	$	46,718
Loans charged-off		-806		-577		-131		-5,583		-226		-7,323
Recoveries		109		212		59		916		97		1,393
Provision for loan losses		-6,770		411		2,236		3,536		-120		-707
Balance at end of period	$	19,756	$	907	$	7,435	$	11,473	$	510	$	40,081
Allowance for loan losses ending balance:
Individually evaluated for impairment	$	4,343	$	-	$	-	$	4,295	$	49	$	8,687
Collectively evaluated for impairment		15,403		849		7,435		7,178		461		31,326
Acquired with deteriorated credit quality		10		58		-		-		-		68
Total ending allowance balance	$	19,756	$	907	$	7,435	$	11,473	$	510	$	40,081
Loans receivable ending balance:
Individually evaluated for impairment	$	45,920	$	396	$	5,659	$	12,663	$	54	$	64,692
Collectively evaluated for impairment		697,938		80,165		161,800		250,935		32,115		1,222,953
Acquired with deteriorated credit quality		13,578		4,084		311		967		40		18,980
Total ending loans balance	$	757,436	$	84,645	$	167,770	$	264,565	$	32,209	$	1,306,625
	Commercial		1-4 Family		Real Estate
(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
At September 30, 2012
Balance at beginning of period	$	21,749	$	1,016	$	11,177	$	9,827	$	915	$	44,684
Loans charged-off		-2,167		-269		-		-3,805		-577		-6,818
Recoveries		40		231		1,950		3,260		376		5,857
Provision for loan losses		6,703		-231		-3,640		-2,907		97		22
Balance at end of period	$	26,325	$	747	$	9,487	$	6,375	$	811	$	43,745
Allowance for loan losses ending balances:
Individually evaluated for impairment	$	5,114	$	-	$	46	$	792	$	82	$	6,034
Collectively evaluated for impairment		21,086		734		9,441		5,583		729		37,573
Acquired with deteriorated credit quality		125		13		-		-		-		138
Total ending allowance balance	$	26,325	$	747	$	9,487	$	6,375	$	811	$	43,745
Loans receivable ending balance:
Individually evaluated for impairment	$	48,368	$	949	$	4,300	$	4,785	$	90	$	58,492
Collectively evaluated for impairment		850,085		73,132		205,480		239,233		37,492		1,405,422
Acquired with deteriorated credit quality		20,664		5,059		419		1,937		118		28,197
Total ending loans balance	$	919,117	$	79,140	$	210,199	$	245,955	$	37,700	$	1,492,111

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2013
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 1Quoted prices in active markets for identical instruments.
	Level 2Observable 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 3Unobservable 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 nine months ended September 30, 2013.
	A description of the valuation methodologies used for instruments measured at fair value on a recurring basis is as follows:
	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 based on loan commitments.  Prior year guaranteed student loans held for sale are carried at the lower of cost or market, which is determined on an aggregate basis.
	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.
	The fair value of a single private equity investment is estimated based on our proportionate share of the net asset value, $2.1 million and $1.7 million as of September 30, 2013 and December 31, 2012, respectively.  The investee invests in small and mid-sized U.S. financial institutions and other financial-related companies.  This investment has a quarterly redemption with sixty-five days’ notice.
	Derivative instrument – We utilize an interest rate swap agreement to convert one of our variable-rate subordinated debentures to a fixed rate (cash flow hedge).  The fair value of the interest rate swap agreement is obtained from dealer quotes.
	The following table summarizes financial assets measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012.
						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 September 30, 2013
	Loans held for sale:
	One-to-four family residential			$	3,521	$	-	$	3,521	$	-
	Government guaranteed commercial real estate				54		-		54		-
	Other loans held for sale				66		-		66		-
	Available for sale securities:
	Federal agency securities				124,013		-		124,013		-
	Obligations of state and political subdivisions				33,061		-		33,061		-
	Residential mortgage-backed securities				180,752		-		180,752		-
	Asset-backed securities				9,494		-		9,494		-
	Other securities				22,942		138		22,804		-
	Derivative instrument				-2,202		-		-2,202		-
	Total			$	371,701	$	138	$	371,563	$	-
	At December 31, 2012
	Loans held for sale:
	Student loans			$	4,680	$	-	$	4,680	$	-
	One-to-four family residential				5,112		-		5,112		-
	Government guaranteed commercial real estate				21,794		-		21,794		-
	Other loans held for sale				96		-		96		-
	Available for sale securities:
	Federal agency securities				115,614		-		115,614		-
	Obligations of state and political subdivisions				35,558		-		35,558		-
	Residential mortgage-backed securities				203,675		-		203,675		-
	Asset-backed securities				7,671				7,671
	Other securities				1,797		111		1,686		-
	Derivative instrument				-3,195		-		-3,195		-
	Total			$	392,802	$	111	$	392,691	$	-
	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 Level 2 inputs based on third-party appraisals or Level 3 inputs based on customized discounting criteria.  Certain other impaired loans are remeasured and reported through a specific valuation allowance allocation of the allowance for loan losses based upon the net present value of cash flows.
	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.
	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.  There has been no impairment during 2013 or 2012; therefore, no fair value adjustment was recorded through earnings.
	Core deposit premiums – The fair value of core deposit premiums are based on third-party appraisals. There has been no impairment during 2013 or 2012; therefore, no fair value adjustment was recorded through earnings.
	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 changes in market conditions.
	Assets that were measured at fair value on a nonrecurring basis as of September 30, 2013 and December 31, 2012 are summarized below.
				Fair Value Measurements Using
				Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs		Total Gains
	(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)		(Losses)
	At September 30, 2013
	Noncovered impaired loans at fair value :
	Commercial real estate	$	20,601	$	-	$	20,601	$	-	$	2,745
	One-to-four family residential		-		-		-		-		-
	Real estate construction		-		-		-		-		-
	Commercial		8,780		-		8,780		-		-2,545
	Other consumer		49		-		49		-		32
	Noncovered other real estate		676		-		676		-		-1,520
	Covered other real estate		1,017		-		1,017		-		-450
	Total	$	31,123	$	-	$	31,123	$	-	$	-1,738
At December 31, 2012
Noncovered impaired loans at fair value :
Commercial real estate	$	33,137	$	-	$	33,137	$	-	$	-6,674
One-to-four family residential		23		-		23		-		-7
Real estate construction		232		-		232				3,532
Commercial		13,473		-		13,473		-		-6,637
Other consumer		81		-		81		-		31
Noncovered other real estate		11,315		-		11,315		-		-3,998
Covered other real estate		3,643		-		3,643		-		-180
Mortgage loan servicing rights		2,321		-		-		2,321		-465
Total	$	64,225	$	-	$	61,904	$	2,321	$	-14,398
Noncovered impaired loans measured at fair value with a carrying amount of $42.5 million were written down to a fair value of $29.4 million, resulting in a life-to-date impairment of $13.1 million, of which $0.2 million was included in the provision for loan losses for the nine months ended September 30, 2013.  As of December 31, 2012, noncovered impaired loans measured at fair value with a carrying amount of $61.0 million were written down to the fair value of $46.9 million at December 31, 2012, resulting in a life-to-date impairment charge of $14.1 million, of which $9.8 million was included in the provision for loan losses for the year ended December 31, 2012.
As of September 30, 2013, noncovered and covered other real estate assets were written down to their fair values, resulting in an impairment charge of approximately $1.5 million and $0.5 million, respectively, which was included in noninterest expense for the nine months ended September 30, 2013.  As of December 31, 2012, noncovered and covered other real estate assets were written down to their fair values, resulting in an impairment charge of approximately $4.0 million and $0.2 million, respectively, which was included in noninterest expense for the year ended December 31, 2012.
For the nine months ended September 30, 2013 there was no impairment of mortgage loan servicing rights.  For the year ended December 31, 2012, mortgage loan servicing rights were written down to their fair values, resulting in impairment charges of $0.5 million, which was included in noninterest income for that period.
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 – 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, student, 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.
Investment 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.
Other liabilities and accrued interest payable – The estimated fair value of other liabilities, which primarily includes trade accounts payable and accrued interest payable, approximates their carrying values.
Other borrowings – Included in other borrowings are FHLB advances, securities sold under agreements to repurchase, and treasury tax and loan demand notes.  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 September 30, 2013.
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 follows:
	At September 30, 2013				At December 31, 2012
	Carrying		Fair		Carrying		Fair
(Dollars in thousands)	Values		Values		Values		Values
Financial assets:
Level 2 inputs:
Cash and cash equivalents	$	245,284	$	245,284	$	288,079	$	288,079
Securities held to maturity		11,739		12,177		12,797		13,659
Accrued interest receivable		5,725		5,725		6,365		6,365
Investments included in other assets		8,149		8,149		8,531		8,531
Level 3 inputs:
Total loans, net of allowance		1,266,544		1,223,686		1,332,017		1,301,942
Financial liabilities:
Level 2 inputs:
Deposits		1,583,791		1,506,792		1,709,578		1,666,653
Accrued interest payable		840		840		1,116		1,116
Other liabilities		7,676		7,676		9,985		9,985
Other borrowings		78,663		81,819		70,362		74,057
Subordinated debentures		46,393		46,393		81,963		82,998

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Instruments [Abstract]	'
Derivative Instruments	'
	NOTE 5: DERIVATIVE INSTRUMENT
	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 September 30, 2013 was 3.12%.
	The estimated fair value of the interest rate derivative contract outstanding as of September 30, 2013 and December 31, 2012 resulted in a pre-tax loss of $2.2 million and $3.2 million, respectively, and was included in other liabilities in the unaudited consolidated statement of financial condition.  We obtained the counterparty valuation to validate its interest rate derivative contract as of September 30, 2013 and December 31, 2012.
	The effective portion of our gain or loss due to changes in the fair value of the derivative hedging instrument, a $0.6 million loss and a $0.3 million loss for the nine months ended September 30, 2013 and September 30, 2012, 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 outflows as a result of the interest rate swap agreement were $0.6 million and $0.5 million for the nine months ended September 30, 2013 and September 30, 2012,  respectively and were included in interest expense on subordinated debentures.
	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.  Credit exposure may be reduced by the amount of collateral pledged by the counterparty.  There are no credit-risk-related contingent features associated with our derivative contract.
	The fair value of cash and securities posted as collateral by us related to the derivative contract was $4.1 million and $4.2 million at September 30, 2013 and December 31, 2012, respectively.

Taxes_On_Income

Taxes On Income	9 Months Ended
	Sep. 30, 2013
Taxes On Income [Abstract]	'
Taxes On Income	'
	NOTE 6: TAXES ON INCOME
	Net deferred tax assets totaled $28.5 million at September 30, 2013 and $32.2 million at December 31, 2012.  Net deferred tax assets are included in other assets and no valuation allowance is recorded.
	We are in a cumulative pretax loss position for the trailing three-year period ended September 30, 2013.  Under current accounting guidance, this represents significant negative evidence in the determination of the need for a valuation allowance.  Included in the three-year pretax loss position is $101.0 million related to the nonrecurring sale of nonperforming assets and potential problem loans that occurred in the fourth quarter of 2011.
	We conducted an interim analysis to assess the need for a valuation allowance at September 30, 2013.  As part of this analysis management considered negative evidence associated with our trailing cumulative loss position against positive evidence associated with the taxable income generated in the first nine months of 2013,  a  long history of taxable income, and projected pre-tax income in future years.  While realization of the deferred tax benefit is not assured, it is management’s judgment, after review of all available evidence and based on the weight of such evidence, that a valuation allowance is not required as realization of these benefits meets the “more likely than not” standard under generally accepted accounting principles.
	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 2009.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	NOTE 7: 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 available to common shareholders 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 options using the treasury stock method.  Stock options and warrants with exercise prices greater than the average market price of common shares were not included in the computation of earnings per diluted share as they would have been antidilutive.  On September 30, 2013 there were no antidilutive stock options, and as of September 30, 2012 there were 5,000 antidilutive stock options to purchase common shares, respectively.
	On May 29, 2013, we repurchased the warrant issued to the U.S. Treasury as part of the TARP Capital Purchase Program (the “CPP”).  The warrant provided the U.S. Treasury the right to purchase up to 703,753 shares of our common stock.  We previously repurchased all of the outstanding shares of our Fixed Rate Cumulative Perpetual Preferred Stock issued to the U.S. Treasury under the CPP in August 2012.
	The following table shows the computation of basic and diluted earnings per common share:
		For the three months				For the nine months
		ended September 30,				ended September 30,
	(Dollars in thousands, except earnings per share data)	2013		2012		2013		2012
	Numerator:
	Net income	$	3,800	$	5,887	$	10,603	$	15,215
	Preferred dividend		-		-380		-		-2,194
	Warrant amortization		-		-1,163		-		-1,545
	Net income available to common shareholders	$	3,800	$	4,344	$	10,603	$	11,476
	Earnings allocated to participating securities		-40		-		-88		-
	Numerator for basic earnings per common share	$	3,760	$	4,344	$	10,515	$	11,476
	Effect of reallocating undistributed earnings
	of participating securities		40		-		88		-
	Numerator for diluted earnings per common share	$	3,800	$	4,344	$	10,603	$	11,476
	Denominator:
	Denominator for basic earnings per common share -
	Weighted average common shares outstanding		19,697,267		19,447,952		19,660,698		19,446,716
	Earnings per common share:
	Basic	$	0.19	$	0.22	$	0.53	$	0.59
	Diluted	$	0.19	$	0.22	$	0.54	$	0.59

Operating_Segments

Operating Segments	9 Months Ended
	Sep. 30, 2013
Operating Segments [Abstract]	'
Operating Segments	'
	NOTE 8: OPERATING SEGMENTS
	We operate five principal segments:  Oklahoma Banking, Texas Banking, Kansas Banking, Secondary Market, and Other Operations.  The Oklahoma Banking segment, the Texas Banking segment, and the Kansas Banking segment provide deposit and lending services.  The Secondary Market segment consists of residential mortgage lending services to customers.  Other Operations includes our funds management unit and corporate investments.
	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.
	Effective January 1, 2013, and as a result of new management, we began to identify reportable segments by geographic location of relationship manager.  Operating results are adjusted for allocated service and management costs.  In addition to this realignment, management decided to eliminate a capital credit allocation between the reportable segments.  The prior year information has been realigned and reallocated for consistency with current identified reportable segments.
	The accounting policies of each reportable segment are the same as ours.  Expenses 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 September 30, 2013
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations		Company
	Net interest income (loss)	$	9,008	$	4,489	$	2,736	$	166	$	-1,126	$	15,273
	Provision for loan losses		1,012		-1,387		39		7		-		-329
	Noninterest income		1,731		310		470		662		374		3,547
	Noninterest expenses		6,570		2,524		2,579		575		771		13,019
	Income (loss) before taxes		3,157		3,662		588		246		-1,523		6,130
	Taxes on income		1,200		1,395		222		94		-581		2,330
	Net income (loss)	$	1,957	$	2,267	$	366	$	152	$	-942	$	3,800
	For the three months ended September 30, 2012
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations		Company
	Net interest income	$	9,201	$	5,994	$	2,415	$	369	$	703	$	18,682
	Provision for loan losses		278		-333		-1,671		-		-		-1,726
	Noninterest income		1,822		382		629		855		262		3,950
	Noninterest expenses		6,429		3,320		3,196		683		963		14,591
	Income before taxes		4,316		3,389		1,519		541		2		9,767
	Taxes on income		1,744		1,344		586		213		-7		3,880
	Net income	$	2,572	$	2,045	$	933	$	328	$	9	$	5,887
	For the nine months ended September 30, 2013
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations*		Company
	Net interest income (loss)	$	25,699	$	14,097	$	7,782	$	467	$	-2,032	$	46,013
	Provision for loan losses		1,168		-2,950		69		-6		1,012		-707
	Noninterest income		5,285		1,004		1,420		2,223		643		10,575
	Noninterest expenses		20,817		6,211		8,653		1,749		2,816		40,246
	Income (loss) before taxes		8,999		11,840		480		947		-5,217		17,049
	Taxes on income		3,403		4,477		182		358		-1,974		6,446
	Net income (loss)	$	5,596	$	7,363	$	298	$	589	$	-3,243	$	10,603
	* Includes externally generated loss of $1.4 million, primarily from investing services, and an internally generated loss of $36,000 from the funds management unit
	Total loans at period end	$	681,745	$	414,433	$	206,802	$	3,641	$	4	$	1,306,625
	Total assets at period end		684,529		407,532		211,237		6,591		662,478		1,972,367
	Total deposits at period end		1,128,753		188,391		250,597		5,666		10,384		1,583,791
	For the nine months ended September 30, 2012
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations*		Company
	Net interest income	$	29,457	$	19,594	$	7,180	$	1,038	$	2,009	$	59,278
	Provision for loan losses		523		2,661		-3,162		-		-		22
	Noninterest income		5,490		1,271		1,649		1,880		775		11,065
	Noninterest expenses		20,421		9,909		10,021		1,730		3,588		45,669
	Income (loss) before taxes		14,003		8,295		1,970		1,188		-804		24,652
	Taxes on income		5,361		3,175		754		455		-308		9,437
	Net income (loss)	$	8,642	$	5,120	$	1,216	$	733	$	-496	$	15,215
	* Includes externally generated revenue of $0.8 million, primarily from investing services, and an internally generated revenue of $2.0 million from the funds management unit
	Total loans at period end	$	704,916	$	560,197	$	192,249	$	34,749	$	-	$	1,492,111
	Total assets at period end		740,883		554,554		197,249		37,216		621,251		2,151,153
	Total deposits at period end		1,303,024		162,404		264,894		5,375		7,977		1,743,674

New_Authoritative_Accounting_G

New Authoritative Accounting Guidance	9 Months Ended
	Sep. 30, 2013
New Authoritative Accounting Guidance [Abstract]	'
New Authoritative Accounting Guidance	'
	NOTE 9:  NEW AUTHORITATIVE ACCOUNTING GUIDANCE
	In December 2011, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2011-11, Balance Sheet (Topic 201) – Disclosures about Offsetting Assets and Liabilities (“ASU 2011-11”).  ASU 2011-11 amends Topic 210, “Balance Sheet,” to require an entity to disclose both gross and net information about financial instruments, such as sales and repurchase agreements and reverse sale and repurchase agreements and securities borrowing/lending arrangements, and derivative instruments that are eligible for offset in the statement of financial position and/or subject to a master netting arrangement or similar agreement. In January 2013, FASB issued Accounting Standards Update No. 2013-01 Balance Sheet (Topic 210) – Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities (“ASU 2013-01”) which clarifies that ordinary trade receivables are not within the scope of ASU 2011-11.    ASU 2011-11, as amended by ASU 2013-01, became effective for us on January 1, 2013 and did not have a significant impact on the financial statements.
	In October 2012, FASB issued Accounting Standards Update No. 2012-06, Business Combinations (Topic 805) – Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a financial Institution (“ASU 2012-06”). ASU 2012-06 requires that when a reporting entity initially recognizes an indemnification asset (in accordance with Subtopic 805-20, Business Combinations—Identifiable Assets and Liabilities, and Any Noncontrolling Interest) as a result of a government-assisted acquisition of a financial institution and subsequently a change in the cash flows expected to be collected on the indemnification asset occurs, the reporting entity would be required to account for the change in the measurement of the indemnification asset on the same basis as the change in the assets subject to indemnification. Any amortization of changes in value of the indemnification asset would be limited to the contractual term of the indemnification agreement (that is, the lesser of the term of the indemnification agreement and the remaining term of the indemnified assets). The amendments resulting from ASU 2012-06 would be applied prospectively to any new indemnification assets acquired and to changes in expected cash flows of existing indemnification assets occurring on or after the date of adoption. The guidance became effective for us on January 1, 2013 and did not have a significant impact on the financial statements.
	In February 2013, FASB issued Accounting Standard Update No. 2013-02, Comprehensive Income (Topic 220) – Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (“ASU 2013-02”). ASU 2013-02 requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in net income if the amount being reclassified is required under U.S. generally accepted accounting principles (GAAP) to be reclassified in its entirety to net income. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income in the same reporting period, an entity is required to cross-reference other disclosures required under U.S. GAAP that provide additional detail about those amounts. ASU 2013-02 became effective for us on January 1, 2013 and did not have a significant impact on the financial statements.

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2013
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 September 30, 2013
	Held to Maturity:
	Obligations of state and political subdivisions	$	11,739		$	438		$	-		$	12,177
	Total	$	11,739		$	438		$	-		$	12,177
	Available for Sale:
	Federal agency securities	$	125,713		$	426		$	-2,126		$	124,013
	Obligations of state and political subdivisions		33,791			41			-771			33,061
	Residential mortgage-backed securities		180,296			1,950			-1,494			180,752
	Asset-backed securities		9,571			-			-77			9,494
	Other securities		22,062			978			-98			22,942
	Total	$	371,433		$	3,395		$	-4,566		$	370,262
	At December 31, 2012
	Held to Maturity:
	Obligations of state and political subdivisions	$	12,797		$	862		$	-		$	13,659
	Total	$	12,797		$	862		$	-		$	13,659
	Available for Sale:
	Federal agency securities	$	114,159		$	1,474		$	-19		$	115,614
	Obligations of state and political subdivisions		34,754			887			-83			35,558
	Residential mortgage-backed securities		200,310			3,668			-303			203,675
	Asset-backed securities		7,794			-			-123			7,671
	Other securities		1,300			497			-			1,797
	Total	$	358,317		$	6,526		$	-528		$	364,315
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	$	18,028		$	18,359		$	1,002		$	1,006
	More than one year through five years		193,019			194,303			940			957
	More than five years through ten years		133,658			130,914			6,388			6,563
	More than ten years		26,728			26,686			3,409			3,651
	Total	$	371,433		$	370,262		$	11,739		$	12,177
Summary Of Sales Of Available For Sale Securities	'
			For the three months						For the nine months
			ended September 30,						ended September 30,
	(Dollars in thousands)		2013			2012			2013			2012
	Proceeds from sales	$	-		$	-		$	-		$	6,588
	Gross realized gains		-			-			-			45
	Gross realized losses		-			-			-			-10
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 September 30, 2013
	Available for Sale:
	Federal agency securities	31		$	79,468		$	-2,126		$	-		$	77,342
	Obligations of state and political subdivisions	21			28,621			-611			-160			27,850
	Residential mortgage-backed securities	52			89,562			-1,137			-357			88,068
	Asset-backed securities	5			9,571			-77			-			9,494
	Other securities	5			20,005			-98			-			19,907
	Total	114		$	227,227		$	-4,049		$	-517		$	222,661
	At December 31, 2012
	Available for Sale:
	Federal agency securities	5		$	9,887		$	-19		$	-		$	9,868
	Obligations of state and political subdivisions	9			10,457			-83			-			10,374
	Residential mortgage-backed securities	23			46,787			-288			-15			46,484
	Asset-backed securities	4			7,794			-123			-			7,671
	Total	41		$	74,925		$	-513		$	-15		$	74,397

Loans_And_Allowance_For_Loan_L1

Loans And Allowance For Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Loans And Allowance For Loan Losses [Abstract]	'
Southwest's Loan Classifications	'
		At September 30, 2013				At December 31, 2012
	(Dollars in thousands)	Noncovered		Covered		Noncovered		Covered
	Real estate mortgage:
	Commercial	$	743,858	$	13,578	$	870,975	$	18,298
	One-to-four family residential		80,561		4,084		70,954		4,881
	Real estate construction:
	Commercial		162,995		311		130,753		382
	One-to-four family residential		4,464		-		3,656		-
	Commercial		263,598		967		240,498		2,037
	Installment and consumer:
	Guaranteed student loans		4,471		-		4,680		-
	Other		27,698		40		31,512		109
			1,287,645		18,980		1,353,028		25,707
	Less: Allowance for loan losses		-40,013		-68		-46,494		-224
	Total loans, net	$	1,247,632	$	18,912	$	1,306,534	$	25,483
Changes In The Carrying Amounts And Accretable Yields For ASC 310.30 Loans	'
		For the three months ended September 30,
		2013					2012
				Carrying				Carrying
		Accretable		amount		Accretable		amount
	(Dollars in thousands)	Yield		of loans		Yield		of loans
	Balance at beginning of period	$	1,580	$	21,646	$	1,758	$	30,712
	Payments received		-		-2,697		-		-1,409
	Transfers to other real estate / repossessed assets		-		-		21		-1,202
	Net charge-offs		-		-		-		-
	Accretion		-137		31		-102		96
	Balance at end of period	$	1,443	$	18,980	$	1,677	$	28,197
		For the nine months ended September 30,
		2013				2012
				Carrying				Carrying
		Accretable		amount		Accretable		amount
	(Dollars in thousands)	Yield		of loans		Yield		of loans
	Balance at beginning of period	$	1,904	$	25,707	$	2,402	$	37,615
	Payments received		-		-6,527		-		-7,269
	Transfers to other real estate / repossessed assets		-33		-375		27		-2,365
	Net charge-offs		-1		-70		-5		-112
	Net reclassifications to / from nonaccretable amount		-		-		-271		-
	Accretion		-427		245		-476		328
	Balance at end of period	$	1,443	$	18,980	$	1,677	$	28,197
Recorded Investment In Loans On Nonaccrual Status	'
		At September 30, 2013				At December 31, 2012
	(Dollars in thousands)	Noncovered		Covered		Noncovered		Covered
	Real estate mortgage:
	Commercial	$	12,203	$	3,175	$	18,337	$	3,087
	One-to-four family residential		396		71		563		52
	Real estate construction:
	Commercial		5,659		130		3,355		130
	Commercial		10,886		104		12,761		324
	Other consumer		54		-		88		2
	Total nonaccrual loans	$	29,198	$	3,480	$	35,104	$	3,595
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 September 30, 2013
	Noncovered:
	Real estate mortgage:
	Commercial	$	24,105	$	12,203	$	36,308	$	707,550	$	743,858	$	-
	One-to-four family residential		105		396		501		80,060		80,561		-
	Real estate construction:
	Commercial		-		5,659		5,659		157,336		162,995		-
	One-to-four family residential		-		-		-		4,464		4,464		-
	Commercial		1,009		10,887		11,896		251,702		263,598		1
	Other		148		55		203		31,966		32,169		1
	Total - noncovered		25,367		29,200		54,567		1,233,078		1,287,645		2
	Covered:
	Real estate mortgage:
	Commercial		1,189		3,175		4,364		9,214		13,578		-
	One-to-four family residential		-		71		71		4,013		4,084		-
	Real estate construction:
	Commercial		-		130		130		181		311		-
	Commercial		-		104		104		863		967		-
	Other		-		-		-		40		40		-
	Total - covered		1,189		3,480		4,669		14,311		18,980		-
	Total	$	26,556	$	32,680	$	59,236	$	1,247,389	$	1,306,625	$	2
	At December 31, 2012
	Noncovered:
	Real estate mortgage:
	Commercial	$	23,348	$	18,337	$	41,685	$	829,290	$	870,975	$	-
	One-to-four family residential		1,479		1,310		2,789		68,165		70,954		747
	Real estate construction:
	Commercial		3,501		3,355		6,856		123,897		130,753		-
	One-to-four family residential		-		-		-		3,656		3,656		-
	Commercial		7,358		15,232		22,590		217,908		240,498		2,471
	Other		538		160		698		35,494		36,192		72
	Total - noncovered		36,224		38,394		74,618		1,278,410		1,353,028		3,290
	Covered:
	Real estate mortgage:
	Commercial real estate		1,090		3,087		4,177		14,121		18,298		-
	One-to-four family residential		-		52		52		4,829		4,881		-
	Real estate construction:
	Commercial		-		130		130		252		382		-
	Commercial		-		324		324		1,713		2,037		-
	Other		-		2		2		107		109		-
	Total - covered		1,090		3,595		4,685		21,022		25,707		-
	Total	$	37,314	$	41,989	$	79,303	$	1,299,432	$	1,378,735	$	3,290
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 September 30, 2013
	Noncovered:
	Commercial real estate	$	30,334	$	30,761	$	15,586	$	15,836	$	4,343
	One-to-four family residential		396		507		-		-		-
	Real estate construction		5,659		9,920		-		-		-
	Commercial		5,861		8,561		6,802		8,594		4,295
	Other		5		7		49		75		49
	Total noncovered	$	42,255	$	49,756	$	22,437	$	24,505	$	8,687
	Covered:
	Commercial real estate	$	7,280	$	8,343	$	776	$	828	$	19
	One-to-four family residential		55		55		45		96		4
	Real estate construction		130		308		-		-		-
	Commercial		127		215		-		-		-
	Total covered	$	7,592	$	8,921	$	821	$	924	$	23
	At December 31, 2012
	Noncovered:
	Commercial real estate	$	29,425	$	30,340	$	24,630		27,397	$	5,094
	One-to-four family residential		563		653		7		7		7
	Real estate construction		3,970		7,841		232		256		50
	Commercial		3,337		6,975		13,422		13,448		6,492
	Other		7		8		81		100		81
	Total noncovered	$	37,302	$	45,817	$	38,372		41,208	$	11,724
	Covered:
	Commercial real estate	$	4,325	$	5,347	$	2,214		3,979	$	22
	One-to-four family residential		20		25		52		98		2
	Real estate construction		130		308		-		-		-
	Commercial		322		1,884		2		3		1
	Other		2		4		-		-		-
	Total covered	$	4,799	$	7,568	$	2,268	$	4,080	$	25
Average Recorded Investment And Interest Income Recognized On Impaired Loans	'
		As of and for the nine months ended September 30,
		2013				2012
		Average				Average
		Recorded		Interest		Recorded		Interest
	(Dollars in thousands)	Investment		Income		Investment		Income
	Noncovered:
	Commercial real estate	$	46,403	$	1,315	$	32,735	$	-
	One-to-four family residential		338		-		736		28
	Real estate construction		5,362		-		4,596		9
	Commercial		12,312		74		4,398		7
	Other		67		-		110		-
	Total noncovered	$	64,482	$	1,389	$	42,575	$	44
	Covered:
	Commercial real estate	$	16,004	$	213	$	22,017	$	21
	One-to-four family residential		4,419		1		5,854		-
	Real estate construction		344		-		2,168		38
	Commercial		1,627		-		2,244		-
	Other		75		-		173		-
	Total covered	$	22,469	$	214	$	32,456	$	59
Troubled Debt Restructured Loans Outstanding	'
		At September 30, 2013				At December 31, 2012
	(Dollars in thousands)	Accruing		Nonaccrual		Accruing		Nonaccrual
	Commercial real estate	$	37,452	$	11,324	$	39,170	$	2,953
	One-to-four family residential		17		110		27		134
	Real estate construction		-		130		847		130
	Commercial		1,777		1,586		3,998		351
	Consumer		-		49		-		81
	Total	$	39,246	$	13,199	$	44,042	$	3,649
Loans Modified As Troubled Debt Restructurings	'
		For the three months ended September 30,
		2013				2012
		Number of		Recorded		Number of		Recorded
	(Dollars in thousands)	Modifications		Investment		Modifications		Investment
	Commercial real estate		-	$	-		1	$	249
	Commercial		-		-		1		782
	Total		-	$	-		2	$	1,031
		For the nine months ended September 30,
		2013				2012
		Number of		Recorded		Number of		Recorded
	(Dollars in thousands)	Modifications		Investment		Modifications		Investment
	Commercial real estate		7	$	2,881		6	$	13,952
	One-to-four family residential		-		-		2		110
	Real estate construction		-		-		1		864
	Commercial		5		1,820		4		2,519
	Total		12	$	4,701		13	$	17,445
Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted	'
		For the three months ended September 30,
		2013				2012
		Number of		Recorded		Number of		Recorded
	(Dollars in thousands)	Contracts		Investment		Contracts		Investment
	Commercial		-	$	-		2	$	48
	Real estate construction		-		-		1		130
	Total		-	$	-		3	$	178
		For the nine months ended September 30,
		2013				2012
		Number of		Recorded		Number of		Recorded
	(Dollars in thousands)	Contracts		Investment		Contracts		Investment
	Commercial real estate		1	$	535		-	$	-
	Real estate construction		-		-		1		130
	Commercial		1		1,033		4		160
	Total		2	$	1,568		5	$	290
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 September 30, 2013
	Grade:
	Pass	$	594,625	$	81,632	$	117,078	$	239,870	$	32,032	$	1,065,237
	Special Mention		82,955		2,129		22,727		3,761		123		111,695
	Substandard		77,430		853		27,965		14,880		54		121,182
	Doubtful		2,426		31		-		6,054		-		8,511
	Total	$	757,436	$	84,645	$	167,770	$	264,565	$	32,209	$	1,306,625
	At December 31, 2012
	Grade:
	Pass	$	718,054	$	71,975	$	83,350	$	208,019	$	35,897	$	1,117,295
	Special Mention		88,167		1,901		25,964		7,047		181		123,260
	Substandard		80,104		1,923		25,477		26,887		223		134,614
	Doubtful		2,948		36		-		582		-		3,566
	Total	$	889,273	$	75,835	$	134,791	$	242,535	$	36,301	$	1,378,735
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 September 30, 2013
	Balance at beginning of period	$	27,223	$	861	$	5,271	$	12,604	$	759	$	46,718
	Loans charged-off		-806		-577		-131		-5,583		-226		-7,323
	Recoveries		109		212		59		916		97		1,393
	Provision for loan losses		-6,770		411		2,236		3,536		-120		-707
	Balance at end of period	$	19,756	$	907	$	7,435	$	11,473	$	510	$	40,081
	Allowance for loan losses ending balance:
	Individually evaluated for impairment	$	4,343	$	-	$	-	$	4,295	$	49	$	8,687
	Collectively evaluated for impairment		15,403		849		7,435		7,178		461		31,326
	Acquired with deteriorated credit quality		10		58		-		-		-		68
	Total ending allowance balance	$	19,756	$	907	$	7,435	$	11,473	$	510	$	40,081
	Loans receivable ending balance:
	Individually evaluated for impairment	$	45,920	$	396	$	5,659	$	12,663	$	54	$	64,692
	Collectively evaluated for impairment		697,938		80,165		161,800		250,935		32,115		1,222,953
	Acquired with deteriorated credit quality		13,578		4,084		311		967		40		18,980
	Total ending loans balance	$	757,436	$	84,645	$	167,770	$	264,565	$	32,209	$	1,306,625
		Commercial		1-4 Family		Real Estate
	(Dollars in thousands)	Real Estate		Residential		Construction		Commercial		Other		Total
	At September 30, 2012
	Balance at beginning of period	$	21,749	$	1,016	$	11,177	$	9,827	$	915	$	44,684
	Loans charged-off		-2,167		-269		-		-3,805		-577		-6,818
	Recoveries		40		231		1,950		3,260		376		5,857
	Provision for loan losses		6,703		-231		-3,640		-2,907		97		22
	Balance at end of period	$	26,325	$	747	$	9,487	$	6,375	$	811	$	43,745
	Allowance for loan losses ending balances:
	Individually evaluated for impairment	$	5,114	$	-	$	46	$	792	$	82	$	6,034
	Collectively evaluated for impairment		21,086		734		9,441		5,583		729		37,573
	Acquired with deteriorated credit quality		125		13		-		-		-		138
	Total ending allowance balance	$	26,325	$	747	$	9,487	$	6,375	$	811	$	43,745
	Loans receivable ending balance:
	Individually evaluated for impairment	$	48,368	$	949	$	4,300	$	4,785	$	90	$	58,492
	Collectively evaluated for impairment		850,085		73,132		205,480		239,233		37,492		1,405,422
	Acquired with deteriorated credit quality		20,664		5,059		419		1,937		118		28,197
	Total ending loans balance	$	919,117	$	79,140	$	210,199	$	245,955	$	37,700	$	1,492,111

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
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 September 30, 2013
	Loans held for sale:
	One-to-four family residential			$	3,521	$	-	$	3,521	$	-
	Government guaranteed commercial real estate				54		-		54		-
	Other loans held for sale				66		-		66		-
	Available for sale securities:
	Federal agency securities				124,013		-		124,013		-
	Obligations of state and political subdivisions				33,061		-		33,061		-
	Residential mortgage-backed securities				180,752		-		180,752		-
	Asset-backed securities				9,494		-		9,494		-
	Other securities				22,942		138		22,804		-
	Derivative instrument				-2,202		-		-2,202		-
	Total			$	371,701	$	138	$	371,563	$	-
	At December 31, 2012
	Loans held for sale:
	Student loans			$	4,680	$	-	$	4,680	$	-
	One-to-four family residential				5,112		-		5,112		-
	Government guaranteed commercial real estate				21,794		-		21,794		-
	Other loans held for sale				96		-		96		-
	Available for sale securities:
	Federal agency securities				115,614		-		115,614		-
	Obligations of state and political subdivisions				35,558		-		35,558		-
	Residential mortgage-backed securities				203,675		-		203,675		-
	Asset-backed securities				7,671				7,671
	Other securities				1,797		111		1,686		-
	Derivative instrument				-3,195		-		-3,195		-
	Total			$	392,802	$	111	$	392,691	$	-
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		Total Gains
	(Dollars in thousands)	Total		(Level 1)		(Level 2)		(Level 3)		(Losses)
	At September 30, 2013
	Noncovered impaired loans at fair value :
	Commercial real estate	$	20,601	$	-	$	20,601	$	-	$	2,745
	One-to-four family residential		-		-		-		-		-
	Real estate construction		-		-		-		-		-
	Commercial		8,780		-		8,780		-		-2,545
	Other consumer		49		-		49		-		32
	Noncovered other real estate		676		-		676		-		-1,520
	Covered other real estate		1,017		-		1,017		-		-450
	Total	$	31,123	$	-	$	31,123	$	-	$	-1,738
	At December 31, 2012
	Noncovered impaired loans at fair value :
	Commercial real estate	$	33,137	$	-	$	33,137	$	-	$	-6,674
	One-to-four family residential		23		-		23		-		-7
	Real estate construction		232		-		232				3,532
	Commercial		13,473		-		13,473		-		-6,637
	Other consumer		81		-		81		-		31
	Noncovered other real estate		11,315		-		11,315		-		-3,998
	Covered other real estate		3,643		-		3,643		-		-180
	Mortgage loan servicing rights		2,321		-		-		2,321		-465
	Total	$	64,225	$	-	$	61,904	$	2,321	$	-14,398
Carrying Values And Estimated Fair Values Of Financial Instruments Segregated By The Level Of The Valuation Inputs	'
		At September 30, 2013				At December 31, 2012
		Carrying		Fair		Carrying		Fair
	(Dollars in thousands)	Values		Values		Values		Values
	Financial assets:
	Level 2 inputs:
	Cash and cash equivalents	$	245,284	$	245,284	$	288,079	$	288,079
	Securities held to maturity		11,739		12,177		12,797		13,659
	Accrued interest receivable		5,725		5,725		6,365		6,365
	Investments included in other assets		8,149		8,149		8,531		8,531
	Level 3 inputs:
	Total loans, net of allowance		1,266,544		1,223,686		1,332,017		1,301,942
	Financial liabilities:
	Level 2 inputs:
	Deposits		1,583,791		1,506,792		1,709,578		1,666,653
	Accrued interest payable		840		840		1,116		1,116
	Other liabilities		7,676		7,676		9,985		9,985
	Other borrowings		78,663		81,819		70,362		74,057
	Subordinated debentures		46,393		46,393		81,963		82,998

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Computation Of Basic And Diluted Earnings Per Common Share	'
		For the three months				For the nine months
		ended September 30,				ended September 30,
	(Dollars in thousands, except earnings per share data)	2013		2012		2013		2012
	Numerator:
	Net income	$	3,800	$	5,887	$	10,603	$	15,215
	Preferred dividend		-		-380		-		-2,194
	Warrant amortization		-		-1,163		-		-1,545
	Net income available to common shareholders	$	3,800	$	4,344	$	10,603	$	11,476
	Earnings allocated to participating securities		-40		-		-88		-
	Numerator for basic earnings per common share	$	3,760	$	4,344	$	10,515	$	11,476
	Effect of reallocating undistributed earnings
	of participating securities		40		-		88		-
	Numerator for diluted earnings per common share	$	3,800	$	4,344	$	10,603	$	11,476
	Denominator:
	Denominator for basic earnings per common share -
	Weighted average common shares outstanding		19,697,267		19,447,952		19,660,698		19,446,716
	Earnings per common share:
	Basic	$	0.19	$	0.22	$	0.53	$	0.59
	Diluted	$	0.19	$	0.22	$	0.54	$	0.59

Operating_Segments_Tables

Operating Segments (Tables)	9 Months Ended
	Sep. 30, 2013
Operating Segments [Abstract]	'
Financial Results By Operating Segment	'
	For the three months ended September 30, 2013
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations		Company
	Net interest income (loss)	$	9,008	$	4,489	$	2,736	$	166	$	-1,126	$	15,273
	Provision for loan losses		1,012		-1,387		39		7		-		-329
	Noninterest income		1,731		310		470		662		374		3,547
	Noninterest expenses		6,570		2,524		2,579		575		771		13,019
	Income (loss) before taxes		3,157		3,662		588		246		-1,523		6,130
	Taxes on income		1,200		1,395		222		94		-581		2,330
	Net income (loss)	$	1,957	$	2,267	$	366	$	152	$	-942	$	3,800
	For the three months ended September 30, 2012
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations		Company
	Net interest income	$	9,201	$	5,994	$	2,415	$	369	$	703	$	18,682
	Provision for loan losses		278		-333		-1,671		-		-		-1,726
	Noninterest income		1,822		382		629		855		262		3,950
	Noninterest expenses		6,429		3,320		3,196		683		963		14,591
	Income before taxes		4,316		3,389		1,519		541		2		9,767
	Taxes on income		1,744		1,344		586		213		-7		3,880
	Net income	$	2,572	$	2,045	$	933	$	328	$	9	$	5,887
	For the nine months ended September 30, 2013
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations*		Company
	Net interest income (loss)	$	25,699	$	14,097	$	7,782	$	467	$	-2,032	$	46,013
	Provision for loan losses		1,168		-2,950		69		-6		1,012		-707
	Noninterest income		5,285		1,004		1,420		2,223		643		10,575
	Noninterest expenses		20,817		6,211		8,653		1,749		2,816		40,246
	Income (loss) before taxes		8,999		11,840		480		947		-5,217		17,049
	Taxes on income		3,403		4,477		182		358		-1,974		6,446
	Net income (loss)	$	5,596	$	7,363	$	298	$	589	$	-3,243	$	10,603
	* Includes externally generated loss of $1.4 million, primarily from investing services, and an internally generated loss of $36,000 from the funds management unit
	Total loans at period end	$	681,745	$	414,433	$	206,802	$	3,641	$	4	$	1,306,625
	Total assets at period end		684,529		407,532		211,237		6,591		662,478		1,972,367
	Total deposits at period end		1,128,753		188,391		250,597		5,666		10,384		1,583,791
	For the nine months ended September 30, 2012
		Oklahoma		Texas		Kansas		Secondary		Other		Total
	(Dollars in thousands)	Banking		Banking		Banking		Market		Operations*		Company
	Net interest income	$	29,457	$	19,594	$	7,180	$	1,038	$	2,009	$	59,278
	Provision for loan losses		523		2,661		-3,162		-		-		22
	Noninterest income		5,490		1,271		1,649		1,880		775		11,065
	Noninterest expenses		20,421		9,909		10,021		1,730		3,588		45,669
	Income (loss) before taxes		14,003		8,295		1,970		1,188		-804		24,652
	Taxes on income		5,361		3,175		754		455		-308		9,437
	Net income (loss)	$	8,642	$	5,120	$	1,216	$	733	$	-496	$	15,215
	* Includes externally generated revenue of $0.8 million, primarily from investing services, and an internally generated revenue of $2.0 million from the funds management unit
	Total loans at period end	$	704,916	$	560,197	$	192,249	$	34,749	$	-	$	1,492,111
	Total assets at period end		740,883		554,554		197,249		37,216		621,251		2,151,153
	Total deposits at period end		1,303,024		162,404		264,894		5,375		7,977		1,743,674

Investment_Securities_Narrativ

Investment Securities (Narrative) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Investment Securities [Abstract]	'	'
Total investments carried at cost	$8.10	$8.50
Available for sale debt securities amortized cost pledged as collateral	$290.10	$284.20

Investment_Securities_Summary_

Investment Securities (Summary Of Amortized Cost And Fair Values Of Investment Securities) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Held to Maturity	$11,739	$12,797
Gross Unrealized Gains, Held to Maturity	438	862
Fair Value, Held to Maturity	12,177	13,659
Amortized Cost, Available for Sale	371,433	358,317
Gross Unrealized Gains, Available for Sale	3,395	6,526
Gross Unrealized Losses, Available for Sale	-4,566	-528
Available-for-Sale Securities, Total	370,262	364,315
Federal Agency Securities [Member]	'	'
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Available for Sale	125,713	114,159
Gross Unrealized Gains, Available for Sale	426	1,474
Gross Unrealized Losses, Available for Sale	-2,126	-19
Available-for-Sale Securities, Total	124,013	115,614
Obligations Of State And Political Subdivisions [Member]	'	'
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Held to Maturity	11,739	12,797
Gross Unrealized Gains, Held to Maturity	438	862
Fair Value, Held to Maturity	12,177	13,659
Amortized Cost, Available for Sale	33,791	34,754
Gross Unrealized Gains, Available for Sale	41	887
Gross Unrealized Losses, Available for Sale	-771	-83
Available-for-Sale Securities, Total	33,061	35,558
Residential Mortgage-Backed Securities [Member]	'	'
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Available for Sale	180,296	200,310
Gross Unrealized Gains, Available for Sale	1,950	3,668
Gross Unrealized Losses, Available for Sale	-1,494	-303
Available-for-Sale Securities, Total	180,752	203,675
Asset-Backed Securities [Member]	'	'
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Available for Sale	9,571	7,794
Gross Unrealized Losses, Available for Sale	-77	-123
Available-for-Sale Securities, Total	9,494	7,671
Equity Securities [Member]	'	'
Held To Maturity Securities And Available For Sale Securities [Line Items]	'	'
Amortized Cost, Available for Sale	22,062	1,300
Gross Unrealized Gains, Available for Sale	978	497
Gross Unrealized Losses, Available for Sale	-98	'
Available-for-Sale Securities, Total	$22,942	$1,797

Investment_Securities_Amortize

Investment Securities (Amortized Cost And Approximate Fair Value Of Investment Securities By Maturity Date) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Amortized cost and approximate fair value [Abstract]	'	'
One year or less, Amortized cost, Available for Sale	$18,028	'
One year or less, Fair Value, Available for Sale	18,359	'
One year or less, Amortized Cost, Held to Maturity	1,002	'
One year or less, Fair Value, Held to Maturity	1,006	'
More than one year through five years, Amortized Cost, Available for Sale	193,019	'
More than one year through five years, Fair Value, Available for Sale	194,303	'
More than one year through five years, Amortized Cost, Held to Maturity	940	'
More than one year through five years, Fair Value, Held to Maturity	957	'
More than five years through ten years, Amortized Cost, Available for Sale	133,658	'
More than five years through ten years, Fair Value, Available for Sale	130,914	'
More than five years through ten years, Amortized Cost, Held to Maturity	6,388	'
More than five years through ten years, Fair Value, Held to Maturity	6,563	'
More than ten years, Amortized Cost, Available for Sale	26,728	'
More than ten years, Fair Value, Available for Sale	26,686	'
More than ten years, Amortized Cost, Held to Maturity	3,409	'
More than ten years, Fair Value, Held to Maturity	3,651	'
Total, Amortized Cost, Available for Sale	371,433	'
Total, Fair Value, Available for Sale	370,262	'
Held-to-maturity Securities, Total	11,739	12,797
Fair Value, Held to Maturity	$12,177	$13,659

Investment_Securities_Summary_1

Investment Securities (Summary Of Sales Of Available For Sale Securities) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2012
Investment Securities [Abstract]	'
Proceeds from sales	$6,588
Gross realized gains	45
Gross realized losses	($10)

Investment_Securities_Summary_2

Investment Securities (Summary Of Securities With Gross Unrealized Losses And Their Fair Values) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	security	security
Available-for-sale Securities and Held-to-maturity Securities	'	'
Number of Securities, Available for Sale	114	41
Amortized cost of securities with unrealized losses, Available for Sale	$227,227	$74,925
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	-4,049	-513
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	-517	-15
Fair value of securities with unrealized losses, Available for Sale	222,661	74,397
Federal Agency Securities [Member]	'	'
Available-for-sale Securities and Held-to-maturity Securities	'	'
Number of Securities, Available for Sale	31	5
Amortized cost of securities with unrealized losses, Available for Sale	79,468	9,887
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	-2,126	-19
Fair value of securities with unrealized losses, Available for Sale	77,342	9,868
Obligations Of State And Political Subdivisions [Member]	'	'
Available-for-sale Securities and Held-to-maturity Securities	'	'
Number of Securities, Available for Sale	21	9
Amortized cost of securities with unrealized losses, Available for Sale	28,621	10,457
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	-611	-83
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	-160	'
Fair value of securities with unrealized losses, Available for Sale	27,850	10,374
Residential Mortgage-Backed Securities [Member]	'	'
Available-for-sale Securities and Held-to-maturity Securities	'	'
Number of Securities, Available for Sale	52	23
Amortized cost of securities with unrealized losses, Available for Sale	89,562	46,787
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	-1,137	-288
Continuous Unrealized Loss Existing for More Than 12 Months, Available for Sale	-357	-15
Fair value of securities with unrealized losses, Available for Sale	88,068	46,484
Asset-Backed Securities [Member]	'	'
Available-for-sale Securities and Held-to-maturity Securities	'	'
Number of Securities, Available for Sale	5	4
Amortized cost of securities with unrealized losses, Available for Sale	9,571	7,794
Continuous Unrealized Loss Existing for Less Than 12 Months, Available for Sale	-77	-123
Fair value of securities with unrealized losses, Available for Sale	$9,494	$7,671

Loans_And_Allowance_For_Loan_L2

Loans And Allowance For Loan Losses (Narrative) (Details) (USD $)	9 Months Ended	12 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Jun. 19, 2009	Jun. 19, 2009
	contract	contract	Real Estate Mortgage [Member]	Real Estate Mortgage [Member]	Commercial Real Estate [Member]	Maximum [Member]	Noncovered [Member]	Noncovered [Member]	Covered [Member]	Covered [Member]
					contract				Maximum [Member]	Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'	'	'	'	'
Reimbursement Ratio	'	'	'	'	'	'	'	'	95.00%	80.00%
Principal balances	'	'	'	'	'	'	$24.50	$31.20	'	'
Impairment reserves	'	'	'	'	'	'	3	6.8	'	'
Loans to individuals and businesses	456.5	'	'	'	'	'	'	'	'	'
Percentage of loans to individuals and businesses	35.00%	'	'	'	'	'	'	'	'	'
Number of days for independent appraisals on real estate collateral	'	'	'	'	'	'30 days	'	'	'	'
Number of collateral dependent lending relationships	5	6	'	'	3	'	'	'	'	'
Loans held for sale	3.6	31.7	'	'	'	'	'	'	'	'
Actual loss period	'3 years	'	'	'	'	'	'	'	'	'
Period to sell loans from the date of closing	'1 month	'	'	'	'	'	'	'	'	'
Unpaid principal of mortgage loans serviced for others	'	'	383.4	329.2	'	'	'	'	'	'
Accrued additional interest income	1.5	'	'	'	'	'	'	'	'	'
Cumulative charge-offs against noncovered nonaccrual loans	$12	$8.30	'	'	'	'	'	'	'	'
Troubled debt restructuring Period	'12 months	'	'	'	'	'	'	'	'	'

Loans_And_Allowance_For_Loan_L3

Loans And Allowance For Loan Losses (Southwest's Loan Classifications) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Jun. 19, 2009
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	$1,287,645	$1,353,028	'
Less: Allowance for loan losses	-40,013	-46,494	'
Total loans, net, Noncovered	1,247,632	1,306,534	'
Loans receivable, Covered	18,980	25,707	'
Less: Allowance for loan losses	-68	-224	-35,000
Net covered loans receivable	18,912	25,483	'
Commercial Real Estate [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	263,598	240,498	'
Loans receivable, Covered	967	2,037	'
Commercial Real Estate [Member] | Real Estate Mortgage [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	743,858	870,975	'
Loans receivable, Covered	13,578	18,298	'
Commercial Real Estate [Member] | Real Estate Construction [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	162,995	130,753	'
Loans receivable, Covered	311	382	'
One-To-Four Family Residential [Member] | Real Estate Mortgage [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	80,561	70,954	'
Loans receivable, Covered	4,084	4,881	'
One-To-Four Family Residential [Member] | Real Estate Construction [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	4,464	3,656	'
Guaranteed Student Loans [Member] | Installment And Consumer [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	4,471	4,680	'
Other [Member] | Installment And Consumer [Member]	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'
Loans receivable, Noncovered	27,698	31,512	'
Loans receivable, Covered	$40	$109	'

Loans_And_Allowance_For_Loan_L4

Loans And Allowance For Loan Losses (Changes In The Carrying Amounts And Accretable Yields For ASC 310.30 Loans) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Loans And Allowance For Loan Losses [Abstract]	'	'	'	'
Balance at beginning of period, Accretable Yield	$1,580	$1,758	$1,904	$2,402
Transfers to other real estate/ repossessed assets, Accretable Yield	'	21	-33	27
Charge-offs, Accretable Yield	'	'	-1	-5
Net reclassifications to / from nonaccretable amount, Accretable Yield	'	'	'	-271
Accretion, Accretable yield	-137	-102	-427	-476
Balance at end of period, Accretable Yield	1,443	1,677	1,443	1,677
Balance at beginning of period, Carrying amount of loans	21,646	30,712	25,707	37,615
Payments Received, Carrying amount of loans	-2,697	-1,409	-6,527	-7,269
Transfers to other real estate / repossessed assets, Carrying amount of loans	'	-1,202	-375	-2,365
Charged-offs, Carrying amount of loans	'	'	-70	-112
Accretion, Carrying amount of loans	31	96	245	328
Balance at end of period, Carrying amount of loans	$18,980	$28,197	$18,980	$28,197

Loans_And_Allowance_For_Loan_L5

Loans And Allowance For Loan Losses (Recorded Investment In Loans On Nonaccrual Status) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	$29,198	$35,104
Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	3,480	3,595
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	12,203	18,337
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	3,175	3,087
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	396	563
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	71	52
Real Estate Construction [Member] | Commercial Real Estate [Member] | Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	5,659	3,355
Real Estate Construction [Member] | Commercial Real Estate [Member] | Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	130	130
Commercial [Member] | Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	10,886	12,761
Commercial [Member] | Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	104	324
Other [Member] | Noncovered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	54	88
Other [Member] | Covered [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total nonaccrual loans	'	$2

Loans_And_Allowance_For_Loan_L6

Loans And Allowance For Loan Losses (Age Analysis Of Past Due Loans) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	$26,556	$37,314	'
90 days and greater past due	32,680	41,989	'
Total past due	59,236	79,303	'
Current	1,247,389	1,299,432	'
Loans receivable, Noncovered	1,287,645	1,353,028	'
Loans receivable, Covered	18,980	25,707	'
Recorded loans > 90 days and accruing	2	3,290	'
Total	1,306,625	1,378,735	1,492,111
Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	25,367	36,224	'
90 days and greater past due	29,200	38,394	'
Total past due	54,567	74,618	'
Current	1,233,078	1,278,410	'
Loans receivable, Noncovered	1,287,645	1,353,028	'
Recorded loans > 90 days and accruing	2	3,290	'
Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	1,189	1,090	'
90 days and greater past due	3,480	3,595	'
Total past due	4,669	4,685	'
Current	14,311	21,022	'
Loans receivable, Covered	18,980	25,707	'
Other [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	148	538	'
90 days and greater past due	55	160	'
Total past due	203	698	'
Current	31,966	35,494	'
Loans receivable, Noncovered	32,169	36,192	'
Recorded loans > 90 days and accruing	1	72	'
Other [Member] | Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
90 days and greater past due	'	2	'
Total past due	'	2	'
Current	40	107	'
Loans receivable, Covered	40	109	'
Real Estate Mortgage [Member] | Commercial Real Estate [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Loans receivable, Noncovered	743,858	870,975	'
Loans receivable, Covered	13,578	18,298	'
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	24,105	23,348	'
90 days and greater past due	12,203	18,337	'
Total past due	36,308	41,685	'
Current	707,550	829,290	'
Loans receivable, Noncovered	743,858	870,975	'
Real Estate Mortgage [Member] | Commercial Real Estate [Member] | Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	1,189	1,090	'
90 days and greater past due	3,175	3,087	'
Total past due	4,364	4,177	'
Current	9,214	14,121	'
Loans receivable, Covered	13,578	18,298	'
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Loans receivable, Noncovered	80,561	70,954	'
Loans receivable, Covered	4,084	4,881	'
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	105	1,479	'
90 days and greater past due	396	1,310	'
Total past due	501	2,789	'
Current	80,060	68,165	'
Loans receivable, Noncovered	80,561	70,954	'
Recorded loans > 90 days and accruing	'	747	'
Real Estate Mortgage [Member] | One-To-Four Family Residential [Member] | Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
90 days and greater past due	71	52	'
Total past due	71	52	'
Current	4,013	4,829	'
Loans receivable, Covered	4,084	4,881	'
Real Estate Construction [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Total	167,770	134,791	210,199
Real Estate Construction [Member] | Commercial Real Estate [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Loans receivable, Noncovered	162,995	130,753	'
Loans receivable, Covered	311	382	'
Real Estate Construction [Member] | Commercial Real Estate [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	'	3,501	'
90 days and greater past due	5,659	3,355	'
Total past due	5,659	6,856	'
Current	157,336	123,897	'
Loans receivable, Noncovered	162,995	130,753	'
Real Estate Construction [Member] | Commercial Real Estate [Member] | Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
90 days and greater past due	130	130	'
Total past due	130	130	'
Current	181	252	'
Loans receivable, Covered	311	382	'
Real Estate Construction [Member] | One-To-Four Family Residential [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Loans receivable, Noncovered	4,464	3,656	'
Real Estate Construction [Member] | One-To-Four Family Residential [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Current	4,464	3,656	'
Loans receivable, Noncovered	4,464	3,656	'
Commercial [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Total	264,565	242,535	245,955
Commercial [Member] | Noncovered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
30-89 days past due	1,009	7,358	'
90 days and greater past due	10,887	15,232	'
Total past due	11,896	22,590	'
Current	251,702	217,908	'
Loans receivable, Noncovered	263,598	240,498	'
Recorded loans > 90 days and accruing	1	2,471	'
Commercial [Member] | Covered [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
90 days and greater past due	104	324	'
Total past due	104	324	'
Current	863	1,713	'
Loans receivable, Covered	$967	$2,037	'

Loans_And_Allowance_For_Loan_L7

Loans And Allowance For Loan Losses (Impaired Loans) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	$42,255	$37,302
With No Specific Allowance Unpaid Principal Balance	49,756	45,817
With A Specific Allowance Recorded Investment	22,437	38,372
With A Specific Allowance Unpaid Principal Balance	24,505	41,208
With A Specific Allowance Related Allowance	8,687	11,724
Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	7,592	4,799
With No Specific Allowance Unpaid Principal Balance	8,921	7,568
With A Specific Allowance Recorded Investment	821	2,268
With A Specific Allowance Unpaid Principal Balance	924	4,080
With A Specific Allowance Related Allowance	23	25
Commercial Real Estate [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	30,334	29,425
With No Specific Allowance Unpaid Principal Balance	30,761	30,340
With A Specific Allowance Recorded Investment	15,586	24,630
With A Specific Allowance Unpaid Principal Balance	15,836	27,397
With A Specific Allowance Related Allowance	4,343	5,094
Commercial Real Estate [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	7,280	4,325
With No Specific Allowance Unpaid Principal Balance	8,343	5,347
With A Specific Allowance Recorded Investment	776	2,214
With A Specific Allowance Unpaid Principal Balance	828	3,979
With A Specific Allowance Related Allowance	19	22
One-To-Four Family Residential [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	396	563
With No Specific Allowance Unpaid Principal Balance	507	653
With A Specific Allowance Recorded Investment	'	7
With A Specific Allowance Unpaid Principal Balance	'	7
With A Specific Allowance Related Allowance	'	7
One-To-Four Family Residential [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	55	20
With No Specific Allowance Unpaid Principal Balance	55	25
With A Specific Allowance Recorded Investment	45	52
With A Specific Allowance Unpaid Principal Balance	96	98
With A Specific Allowance Related Allowance	4	2
Real Estate Construction [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	5,659	3,970
With No Specific Allowance Unpaid Principal Balance	9,920	7,841
With A Specific Allowance Recorded Investment	'	232
With A Specific Allowance Unpaid Principal Balance	'	256
With A Specific Allowance Related Allowance	'	50
Real Estate Construction [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	130	130
With No Specific Allowance Unpaid Principal Balance	308	308
Commercial [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	5,861	3,337
With No Specific Allowance Unpaid Principal Balance	8,561	6,975
With A Specific Allowance Recorded Investment	6,802	13,422
With A Specific Allowance Unpaid Principal Balance	8,594	13,448
With A Specific Allowance Related Allowance	4,295	6,492
Commercial [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	127	322
With No Specific Allowance Unpaid Principal Balance	215	1,884
With A Specific Allowance Recorded Investment	'	2
With A Specific Allowance Unpaid Principal Balance	'	3
With A Specific Allowance Related Allowance	'	1
Other [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	5	7
With No Specific Allowance Unpaid Principal Balance	7	8
With A Specific Allowance Recorded Investment	49	81
With A Specific Allowance Unpaid Principal Balance	75	100
With A Specific Allowance Related Allowance	49	81
Other [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
With No Specific Allowance Recorded Investment	'	2
With No Specific Allowance Unpaid Principal Balance	'	$4

Loans_And_Allowance_For_Loan_L8

Loans And Allowance For Loan Losses (Average Recorded Investment And Interest Income Recognized On Impaired Loans) (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	$64,482	$42,575
Interest Income	1,389	44
Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	22,469	32,456
Interest Income	214	59
Commercial Real Estate [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	46,403	32,735
Interest Income	1,315	'
Commercial Real Estate [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	16,004	22,017
Interest Income	213	21
One-To-Four Family Residential [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	338	736
Interest Income	'	28
One-To-Four Family Residential [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	4,419	5,854
Interest Income	1	'
Real Estate Construction [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	5,362	4,596
Interest Income	'	9
Real Estate Construction [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	344	2,168
Interest Income	'	38
Commercial [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	12,312	4,398
Interest Income	74	7
Commercial [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	1,627	2,244
Other [Member] | Noncovered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	67	110
Other [Member] | Covered [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	$75	$173

Loans_And_Allowance_For_Loan_L9

Loans And Allowance For Loan Losses (Troubled Debt Restructured Loans Outstanding) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]	'	'
Accruing	$39,246	$44,042
Nonaccrual	13,199	3,649
Commercial Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Accruing	37,452	39,170
Nonaccrual	11,324	2,953
One-To-Four Family Residential [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Accruing	17	27
Nonaccrual	110	134
Real Estate Construction [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Accruing	'	847
Nonaccrual	130	130
Commercial [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Accruing	1,777	3,998
Nonaccrual	1,586	351
Consumer [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Nonaccrual	$49	$81

Recovered_Sheet1

Loans And Allowance For Loan Losses (Loans Modified As Troubled Debt Restructurings) (Details) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
	contract	contract	contract
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Modifications	2	12	13
Recorded Investment	$1,031	$4,701	$17,445
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Modifications	1	7	6
Recorded Investment	249	2,881	13,952
One-To-Four Family Residential [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Modifications	'	'	2
Recorded Investment	'	'	110
Real Estate Construction [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Modifications	'	'	1
Recorded Investment	'	'	864
Commercial [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Modifications	1	5	4
Recorded Investment	$782	$1,820	$2,519

Recovered_Sheet2

Loans And Allowance For Loan Losses (Recorded Investment And The Number Of Loans Modified As Troubled Debt Restructuring Which Subsequently Defaulted) (Details) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
	contract	contract	contract
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	3	2	5
Recorded Investment	$178	$1,568	$290
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	'	1	'
Recorded Investment	'	535	'
Commercial [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	2	1	4
Recorded Investment	48	1,033	160
Real Estate Construction [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	1	'	1
Recorded Investment	$130	'	$130

Recovered_Sheet3

Loans And Allowance For Loan Losses (Classification Of Risk Category Of Loans, By Classes) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	$1,306,625	$1,378,735	$1,492,111
Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	1,065,237	1,117,295	'
Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	111,695	123,260	'
Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	121,182	134,614	'
Doubtful [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	8,511	3,566	'
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	757,436	889,273	919,117
Commercial Real Estate [Member] | Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	594,625	718,054	'
Commercial Real Estate [Member] | Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	82,955	88,167	'
Commercial Real Estate [Member] | Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	77,430	80,104	'
Commercial Real Estate [Member] | Doubtful [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	2,426	2,948	'
One-To-Four Family Residential [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	84,645	75,835	79,140
One-To-Four Family Residential [Member] | Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	81,632	71,975	'
One-To-Four Family Residential [Member] | Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	2,129	1,901	'
One-To-Four Family Residential [Member] | Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	853	1,923	'
One-To-Four Family Residential [Member] | Doubtful [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	31	36	'
Real Estate Construction [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	167,770	134,791	210,199
Real Estate Construction [Member] | Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	117,078	83,350	'
Real Estate Construction [Member] | Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	22,727	25,964	'
Real Estate Construction [Member] | Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	27,965	25,477	'
Commercial [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	264,565	242,535	245,955
Commercial [Member] | Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	239,870	208,019	'
Commercial [Member] | Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	3,761	7,047	'
Commercial [Member] | Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	14,880	26,887	'
Commercial [Member] | Doubtful [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	6,054	582	'
Other [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	32,209	36,301	37,700
Other [Member] | Pass [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	32,032	35,897	'
Other [Member] | Special Mention [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	123	181	'
Other [Member] | Substandard [Member]	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'
Total	$54	$223	'

Recovered_Sheet4

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 $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	$46,718	$44,684	'
Loans charged-off	'	'	-7,323	-6,818	'
Recoveries	'	'	1,393	5,857	'
Provision for loan losses	-329	-1,726	-707	22	'
Balance at end of period	40,081	43,745	40,081	43,745	'
Individually evaluated for impairment	8,687	6,034	8,687	6,034	'
Collectively evaluated for impairment	31,326	37,573	31,326	37,573	'
Acquired with deteriorated credit quality	68	138	68	138	'
Individually evaluated for impairment	64,692	58,492	64,692	58,492	'
Collectively evaluated for impairment	1,222,953	1,405,422	1,222,953	1,405,422	'
Acquired with deteriorated credit quality	18,980	28,197	18,980	28,197	'
Total ending loans balance	1,306,625	1,492,111	1,306,625	1,492,111	1,378,735
Commercial Real Estate [Member]	'	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	27,223	21,749	'
Loans charged-off	'	'	-806	-2,167	'
Recoveries	'	'	109	40	'
Provision for loan losses	'	'	-6,770	6,703	'
Balance at end of period	19,756	26,325	19,756	26,325	'
Individually evaluated for impairment	4,343	5,114	4,343	5,114	'
Collectively evaluated for impairment	15,403	21,086	15,403	21,086	'
Acquired with deteriorated credit quality	10	125	10	125	'
Individually evaluated for impairment	45,920	48,368	45,920	48,368	'
Collectively evaluated for impairment	697,938	850,085	697,938	850,085	'
Acquired with deteriorated credit quality	13,578	20,664	13,578	20,664	'
Total ending loans balance	757,436	919,117	757,436	919,117	889,273
One-To-Four Family Residential [Member]	'	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	861	1,016	'
Loans charged-off	'	'	-577	-269	'
Recoveries	'	'	212	231	'
Provision for loan losses	'	'	411	-231	'
Balance at end of period	907	747	907	747	'
Collectively evaluated for impairment	849	734	849	734	'
Acquired with deteriorated credit quality	58	13	58	13	'
Individually evaluated for impairment	396	949	396	949	'
Collectively evaluated for impairment	80,165	73,132	80,165	73,132	'
Acquired with deteriorated credit quality	4,084	5,059	4,084	5,059	'
Total ending loans balance	84,645	79,140	84,645	79,140	75,835
Real Estate Construction [Member]	'	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	5,271	11,177	'
Loans charged-off	'	'	-131	'	'
Recoveries	'	'	59	1,950	'
Provision for loan losses	'	'	2,236	-3,640	'
Balance at end of period	7,435	9,487	7,435	9,487	'
Individually evaluated for impairment	'	46	'	46	'
Collectively evaluated for impairment	7,435	9,441	7,435	9,441	'
Individually evaluated for impairment	5,659	4,300	5,659	4,300	'
Collectively evaluated for impairment	161,800	205,480	161,800	205,480	'
Acquired with deteriorated credit quality	311	419	311	419	'
Total ending loans balance	167,770	210,199	167,770	210,199	134,791
Commercial [Member]	'	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	12,604	9,827	'
Loans charged-off	'	'	-5,583	-3,805	'
Recoveries	'	'	916	3,260	'
Provision for loan losses	'	'	3,536	-2,907	'
Balance at end of period	11,473	6,375	11,473	6,375	'
Individually evaluated for impairment	4,295	792	4,295	792	'
Collectively evaluated for impairment	7,178	5,583	7,178	5,583	'
Individually evaluated for impairment	12,663	4,785	12,663	4,785	'
Collectively evaluated for impairment	250,935	239,233	250,935	239,233	'
Acquired with deteriorated credit quality	967	1,937	967	1,937	'
Total ending loans balance	264,565	245,955	264,565	245,955	242,535
Other [Member]	'	'	'	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'	'	'	'
Balance at beginning of period	'	'	759	915	'
Loans charged-off	'	'	-226	-577	'
Recoveries	'	'	97	376	'
Provision for loan losses	'	'	-120	97	'
Balance at end of period	510	811	510	811	'
Individually evaluated for impairment	49	82	49	82	'
Collectively evaluated for impairment	461	729	461	729	'
Individually evaluated for impairment	54	90	54	90	'
Collectively evaluated for impairment	32,115	37,492	32,115	37,492	'
Acquired with deteriorated credit quality	40	118	40	118	'
Total ending loans balance	$32,209	$37,700	$32,209	$37,700	$36,301

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narrative) (Details) (USD $)	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]	'	'
Private equity investment Southwest's proportionate share of the net asset value	$2.10	$1.70
Impairment charges of mortgage loan servicing rights	'	0.5
Noncovered [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Noncovered impaired loans carrying amount	42.5	61
Noncovered impaired loans measured at fair value	29.4	46.9
Noncovered impaired loans life to date impairment	13.1	14.1
Provision for loan losses	0.2	9.8
Impairment charge of other real estate assets	1.5	4
Covered [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Impairment charge of other real estate assets	$0.50	$0.20

Fair_Value_Measurements_Summar

Fair Value Measurements (Summary Of Financial Assets Measured At Fair Value On A Recurring Basis) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	$370,262	$364,315
Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total Assets at Fair Value on a recurring basis	371,701	392,802
Fair Value, Measurements, Recurring [Member] | Student Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	'	4,680
Fair Value, Measurements, Recurring [Member] | One-To-Four Family Residential [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	3,521	5,112
Fair Value, Measurements, Recurring [Member] | Government Guaranteed Commercial Real Estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	54	21,794
Fair Value, Measurements, Recurring [Member] | Other Loans Held For Sale [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	66	96
Fair Value, Measurements, Recurring [Member] | Federal Agency Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	124,013	115,614
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]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	33,061	35,558
Fair Value, Measurements, Recurring [Member] | Residential Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	180,752	203,675
Fair Value, Measurements, Recurring [Member] | Asset-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	9,494	7,671
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	22,942	1,797
Fair Value, Measurements, Recurring [Member] | Derivative Instrument [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative instrument	-2,202	-3,195
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	138	111
Fair Value, Measurements, Recurring [Member] | Level 1 Inputs [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	138	111
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total Assets at Fair Value on a recurring basis	371,563	392,691
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Student Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	'	4,680
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | One-To-Four Family Residential [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	3,521	5,112
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Government Guaranteed Commercial Real Estate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	54	21,794
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Other Loans Held For Sale [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans held for sale	66	96
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]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	124,013	115,614
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]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	33,061	35,558
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]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	180,752	203,675
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]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	9,494	7,671
Fair Value, Measurements, Recurring [Member] | Level 2 Inputs [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale (amortized cost of $371,433 and $358,317, respectively)	22,804	1,686
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 instrument	($2,202)	($3,195)

Fair_Value_Measurements_Asset_

Fair Value Measurements (Asset Measured At Fair Value On A Nonrecurring Basis) (Details) (Fair Value Measurements Nonrecurring [Member], USD $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	$31,123	$64,225
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	-1,738	-14,398
Commercial Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	20,601	33,137
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	2,745	-6,674
One-To-Four Family Residential [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	23
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	'	-7
Real Estate Construction [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	232
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	'	3,532
Commercial [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	8,780	13,473
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	-2,545	-6,637
Other Consumer [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	49	81
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	32	31
Noncovered Other Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	676	11,315
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	-1,520	-3,998
Covered Other Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	1,017	3,643
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	-450	-180
Mortgage Loan Servicing Rights [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	2,321
Noncovered Impaired Loans at Fair Value Total Gains (Losses)	'	-465
Level 2 Inputs [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	31,123	61,904
Level 2 Inputs [Member] | Commercial Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	20,601	33,137
Level 2 Inputs [Member] | One-To-Four Family Residential [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	23
Level 2 Inputs [Member] | Real Estate Construction [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	232
Level 2 Inputs [Member] | Commercial [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	8,780	13,473
Level 2 Inputs [Member] | Other Consumer [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	49	81
Level 2 Inputs [Member] | Noncovered Other Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	676	11,315
Level 2 Inputs [Member] | Covered Other Real Estate [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	1,017	3,643
Level 3 Inputs [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	2,321
Level 3 Inputs [Member] | Mortgage Loan Servicing Rights [Member]	'	'
Noncovered impaired loans at fair value:	'	'
Assets fair value, Total	'	$2,321

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 $)	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial Assets:	'	'
Held to maturity securities, fair value	$12,177	$13,659
Accrued interest receivable	5,725	6,365
Financial Liabilities:	'	'
Accrued interest payable	840	1,116
Other borrowings	78,663	70,362
Carrying Values [Member] | Level 2 Inputs [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	245,284	288,079
Held to maturity securities, fair value	11,739	12,797
Accrued interest receivable	5,725	6,365
Investments included in other assets	8,149	8,531
Financial Liabilities:	'	'
Deposits	1,583,791	1,709,578
Accrued interest payable	840	1,116
Other liabilities	7,676	9,985
Other borrowings	78,663	70,362
Subordinated debentures	46,393	81,963
Carrying Values [Member] | Level 3 Inputs [Member]	'	'
Financial Assets:	'	'
Total loans, net of allowance	1,266,544	1,332,017
Fair Values [Member] | Level 2 Inputs [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	245,284	288,079
Held to maturity securities, fair value	12,177	13,659
Accrued interest receivable	5,725	6,365
Investments included in other assets	8,149	8,531
Financial Liabilities:	'	'
Deposits	1,506,792	1,666,653
Accrued interest payable	840	1,116
Other liabilities	7,676	9,985
Other borrowings	81,819	74,057
Subordinated debentures	46,393	82,998
Fair Values [Member] | Level 3 Inputs [Member]	'	'
Financial Assets:	'	'
Total loans, net of allowance	$1,223,686	$1,301,942

Derivative_Instruments_Details

Derivative Instruments (Details) (USD $)	9 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Derivative Instruments [Abstract]	'	'	'
Interest rate swap agreement Notional amount	$25	'	'
Interest payment period	'7 years	'	'
Fixed interest rate	6.15%	'	'
Variable interest rate	2.85%	'	'
Rate received by Southwest	3.12%	'	'
Pretax loss related to derivative contracts	2.2	'	3.2
Gain or loss due to changes in the fair value of the derivative hedging instrument	0.6	0.3	'
Net cash flows as a result of the interest rate swap agreement	0.6	0.5	'
The fair value of cash and securities posted as collateral	$4.10	'	$4.20

Taxes_On_Income_Narrative_Deta

Taxes On Income (Narrative) (Details) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2011	Sep. 30, 2013	Dec. 31, 2012
Taxes On Income [Abstract]	'	'	'
Net deferred tax assets	'	$28.50	$32.20
Cumulative pretax loss position period	'3 years	'3 years	'
Nonrecurring sale of nonperforming assets	$101	'	'

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:	'	'	'	'
Net income	$3,800	$5,887	$10,603	$15,215
Preferred dividend	'	-380	'	-2,194
Warrant amortization	'	-1,163	'	-1,545
Net income available to common shareholders	3,800	4,344	10,603	11,476
Earnings allocated to participating securities	-40	'	-88	'
Numerator for basic earnings per common share	3,760	4,344	10,515	11,476
Effect of reallocating undistributed earnings of participating securities	40	'	88	'
Numerator for diluted earnings per common share	$3,800	$4,344	$10,603	$11,476
Denominator:	'	'	'	'
Weighted average common shares outstanding	19,697,267	19,447,952	19,660,698	19,446,716
Earnings per common share:	'	'	'	'
Basic	$0.19	$0.22	$0.53	$0.59
Diluted	$0.19	$0.22	$0.54	$0.59
Stock Options [Member]	'	'	'	'
Computation of basic and diluted earnings per common share	'	'	'	'
Antidilutive options to purchase common shares	'	'	0	5,000
Warrant [Member]	'	'	'	'
Effect of dilutive securities:	'	'	'	'
Warrant	'	'	703,753	'

Operating_Segments_Narrative_D

Operating Segments (Narrative) (Details)	9 Months Ended
	Sep. 30, 2013
	segment
Operating Segments [Abstract]	'
Number of principal segments	5

Operating_Segments_Financial_R

Operating Segments (Financial Results By Operating Segment) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Financial results by operating segment	'	'	'		'		'
Net interest income	$15,273,000	$18,682,000	$46,013,000		$59,278,000		'
Provision for loan losses	-329,000	-1,726,000	-707,000		22,000		'
Noninterest income	3,547,000	3,950,000	10,575,000		11,065,000		'
Noninterest expenses	13,019,000	14,591,000	40,246,000		45,669,000		'
Income (loss) before taxes	6,130,000	9,767,000	17,049,000		24,652,000		'
Taxes on income	2,330,000	3,880,000	6,446,000		9,437,000		'
Net income (loss)	3,800,000	5,887,000	10,603,000		15,215,000		'
Externally generated revenue from investing activities	'	'	1,400,000		800,000		'
Internally generated loss from fund management	'	'	36,000,000,000		2,000,000		'
Total loans at period end	1,306,625,000	1,492,111,000	1,306,625,000		1,492,111,000		1,378,735,000
Total assets at period end	1,972,367,000	2,151,153,000	1,972,367,000		2,151,153,000		2,122,255,000
Total deposits at period end	1,583,791,000	1,743,674,000	1,583,791,000		1,743,674,000		1,709,578,000
Oklahoma Banking [Member]	'	'	'		'		'
Financial results by operating segment	'	'	'		'		'
Net interest income	9,008,000	9,201,000	25,699,000		29,457,000		'
Provision for loan losses	1,012,000	278,000	1,168,000		523,000		'
Noninterest income	1,731,000	1,822,000	5,285,000		5,490,000		'
Noninterest expenses	6,570,000	6,429,000	20,817,000		20,421,000		'
Income (loss) before taxes	3,157,000	4,316,000	8,999,000		14,003,000		'
Taxes on income	1,200,000	1,744,000	3,403,000		5,361,000		'
Net income (loss)	1,957,000	2,572,000	5,596,000		8,642,000		'
Total loans at period end	681,745,000	704,916,000	681,745,000		704,916,000		'
Total assets at period end	684,529,000	740,883,000	684,529,000		740,883,000		'
Total deposits at period end	1,128,753,000	1,303,024,000	1,128,753,000		1,303,024,000		'
Texas Banking [Member]	'	'	'		'		'
Financial results by operating segment	'	'	'		'		'
Net interest income	4,489,000	5,994,000	14,097,000		19,594,000		'
Provision for loan losses	-1,387,000	-333,000	-2,950,000		2,661,000		'
Noninterest income	310,000	382,000	1,004,000		1,271,000		'
Noninterest expenses	2,524,000	3,320,000	6,211,000		9,909,000		'
Income (loss) before taxes	3,662,000	3,389,000	11,840,000		8,295,000		'
Taxes on income	1,395,000	1,344,000	4,477,000		3,175,000		'
Net income (loss)	2,267,000	2,045,000	7,363,000		5,120,000		'
Total loans at period end	414,433,000	560,197,000	414,433,000		560,197,000		'
Total assets at period end	407,532,000	554,554,000	407,532,000		554,554,000		'
Total deposits at period end	188,391,000	162,404,000	188,391,000		162,404,000		'
Kansas Banking [Member]	'	'	'		'		'
Financial results by operating segment	'	'	'		'		'
Net interest income	2,736,000	2,415,000	7,782,000		7,180,000		'
Provision for loan losses	39,000	-1,671,000	69,000		-3,162,000		'
Noninterest income	470,000	629,000	1,420,000		1,649,000		'
Noninterest expenses	2,579,000	3,196,000	8,653,000		10,021,000		'
Income (loss) before taxes	588,000	1,519,000	480,000		1,970,000		'
Taxes on income	222,000	586,000	182,000		754,000		'
Net income (loss)	366,000	933,000	298,000		1,216,000		'
Total loans at period end	206,802,000	192,249,000	206,802,000		192,249,000		'
Total assets at period end	211,237,000	197,249,000	211,237,000		197,249,000		'
Total deposits at period end	250,597,000	264,894,000	250,597,000		264,894,000		'
Secondary Market [Member]	'	'	'		'		'
Financial results by operating segment	'	'	'		'		'
Net interest income	166,000	369,000	467,000		1,038,000		'
Provision for loan losses	7,000	'	-6,000		'		'
Noninterest income	662,000	855,000	2,223,000		1,880,000		'
Noninterest expenses	575,000	683,000	1,749,000		1,730,000		'
Income (loss) before taxes	246,000	541,000	947,000		1,188,000		'
Taxes on income	94,000	213,000	358,000		455,000		'
Net income (loss)	152,000	328,000	589,000		733,000		'
Total loans at period end	3,641,000	34,749,000	3,641,000		34,749,000		'
Total assets at period end	6,591,000	37,216,000	6,591,000		37,216,000		'
Total deposits at period end	5,666,000	5,375,000	5,666,000		5,375,000		'
Other Operations [Member]	'	'	'		'		'
Financial results by operating segment	'	'	'		'		'
Net interest income	-1,126,000	703,000	-2,032,000	[1]	2,009,000	[1]	'
Provision for loan losses	'	'	1,012,000	[1]	'		'
Noninterest income	374,000	262,000	643,000	[1]	775,000	[1]	'
Noninterest expenses	771,000	963,000	2,816,000	[1]	3,588,000	[1]	'
Income (loss) before taxes	-1,523,000	2,000	-5,217,000	[1]	-804,000	[1]	'
Taxes on income	-581,000	-7,000	-1,974,000	[1]	-308,000	[1]	'
Net income (loss)	-942,000	9,000	-3,243,000	[1]	-496,000	[1]	'
Total loans at period end	4,000	'	4,000		'		'
Total assets at period end	662,478,000	621,251,000	662,478,000		621,251,000		'
Total deposits at period end	$10,384,000	$7,977,000	$10,384,000		$7,977,000		'
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