OmniAmerican Bancorp (OABC) 10-Q 31 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document and Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'OmniAmerican Bancorp, Inc.	'
Entity Central Index Key	'0001470795	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	11,591,047

Consolidated_Balance_Sheets_Un

Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from financial institutions	$11,791	$11,498
Short-term interest-earning deposits in other financial institutions	1,913	4,382
Total cash and cash equivalents	13,704	15,880
Investments:	'	'
Securities available for sale (Amortized cost of $438,918 on September 30, 2014 and $433,580 on December 31, 2013)	440,675	430,775
Other	16,486	19,782
Loans held for sale	2,014	1,509
Loans, net of deferred fees and discounts	774,015	831,326
Less allowance for loan losses	-6,248	-6,445
Loans, net	767,767	824,881
Premises and equipment, net	39,999	41,512
Bank-owned life insurance	44,669	43,606
Other real estate owned	931	177
Mortgage servicing rights	1,559	1,473
Deferred tax asset, net	2,434	4,066
Accrued interest receivable	3,168	3,447
Other assets	3,869	4,205
Total assets	1,337,275	1,391,313
Deposits:	'	'
Noninterest-bearing	57,399	58,071
Interest-bearing	741,392	755,503
Total deposits	798,791	813,574
Federal Home Loan Bank advances	302,833	362,000
Other borrowings	7,000	2,000
Accrued expenses and other liabilities	13,221	6,597
Total liabilities	1,121,845	1,184,171
Commitments and contingencies	'	'
Stockholders’ equity:	'	'
Common stock, par value $0.01 per share; 100,000,000 shares authorized; 11,573,681 shares issued and outstanding at September 30, 2014 and 11,451,596 shares issued and outstanding at December 31, 2013	116	115
Additional paid-in capital	111,819	109,250
Unallocated Employee Stock Ownership Plan (“ESOP”) shares; 771,282 shares at September 30, 2014 and 799,848 shares at December 31, 2013	-7,713	-7,999
Retained earnings	110,725	108,304
Accumulated other comprehensive income (loss):	'	'
Unrealized gain (loss) on securities available for sale, net of income taxes	1,160	-1,851
Unrealized loss on pension plan, net of income taxes	-677	-677
Total accumulated other comprehensive income (loss)	483	-2,528
Total stockholders’ equity	215,430	207,142
Total liabilities and stockholders’ equity	$1,337,275	$1,391,313

Consolidated_Balance_Sheets_Un1

Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Amortized cost of available for sale securities	$438,918	$433,580
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	11,573,681	11,451,596
Common stock, shares outstanding	11,573,681	11,451,596
Unallocated Employee Stock Ownership Plan (ESOP) shares	771,282	799,848

Consolidated_Statements_of_Inc

Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income:	'	'	'	'
Loans, including fees	$8,990	$11,097	$27,126	$29,263
Securities - taxable	2,561	2,335	7,796	6,613
Securities - nontaxable	1	0	2	1
Total interest income	11,552	13,432	34,924	35,877
Interest expense:	'	'	'	'
Deposits	1,012	1,181	3,048	4,028
Borrowed funds	606	646	1,940	1,832
Total interest expense	1,618	1,827	4,988	5,860
Net interest income	9,934	11,605	29,936	30,017
Provision for loan losses	550	200	1,925	1,800
Net interest income after provision for loan losses	9,384	11,405	28,011	28,217
Noninterest income:	'	'	'	'
Service charges and other fees	2,141	2,349	6,301	6,795
Net gains on sales of loans	453	405	1,031	1,427
Net gains on sales of securities available for sale (reclassified from unrealized gains (losses) on available-for-sale securities in accumulated other comprehensive income)	0	0	607	1,701
Net (losses) gains on disposition of premises and equipment	0	0	-1	344
Net (losses) gains on sales of repossessed assets	-9	20	1	17
Commissions	327	462	1,104	1,067
Increase in cash surrender value of bank-owned life insurance	346	368	1,063	1,051
Other income	223	193	747	640
Total noninterest income	3,481	3,797	10,853	13,042
Noninterest expense:	'	'	'	'
Salaries and benefits	6,156	6,645	18,780	19,442
Software and equipment maintenance	573	719	1,668	2,025
Depreciation of furniture, software, and equipment	259	394	852	1,222
FDIC insurance	168	193	521	522
Net loss on write-down of other real estate owned	7	205	29	227
Real estate owned expense (income)	26	-29	90	-64
Service fees	155	133	453	373
Communications costs	195	258	652	731
Other operations expense	734	775	2,316	2,341
Occupancy	992	959	2,911	2,884
Professional and outside services	1,440	1,145	4,431	3,185
Loan servicing	27	281	271	513
Marketing	97	212	290	520
Total noninterest expense	10,829	11,890	33,264	33,921
Income before income tax expense	2,036	3,312	5,600	7,338
Income tax expense (includes income tax expense from items reclassified from accumulated other comprehensive income of $0 for the three months ended September 30, 2014 and 2013, and $206 and $578 for the nine months ended September 30, 2014 and 2013, respectively)	434	1,116	1,571	2,535
Net income	$1,602	$2,196	$4,029	$4,803
Earnings per share:	'	'	'	'
Basic	$0.15	$0.21	$0.37	$0.46
Diluted	$0.15	$0.21	$0.37	$0.46

Consolidated_Statements_of_Inc1

Consolidated Statements of Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Reclassifications from unrealized gains (losses) on available for sale securities in accumulated other comprehensive income	$0	$0	$607	$1,701
Income tax expense from items reclassified from accumulated other comprehensive income	$0	$0	$206	$578

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$1,602	$2,196	$4,029	$4,803
Change in unrealized gains (losses) on securities available for sale	-2,093	1,337	5,169	-8,027
Reclassification of amount realized through sale of securities	0	0	-607	-1,701
Income tax effect	712	-455	-1,551	3,307
Other comprehensive (loss) income, net of income tax	-1,381	882	3,011	-6,421
Comprehensive income (loss)	$221	$3,078	$7,040	($1,618)

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (USD $)	Total	Common Stock	Additional Paid-in Capital	Unallocated ESOP shares	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
In Thousands
Beginning balance at Dec. 31, 2013	$207,142	$115	$109,250	($7,999)	$108,304	($2,528)
ESOP shares allocated, 28,566 shares	691	0	405	286	0	0
Stock purchased and retired at cost, 6,469 shares	-25	0	-25	0	0	0
Share-based compensation expense	1,612	0	1,612	0	0	0
Tax benefit from share-based compensation	150	0	150	0	0	0
Stock options exercised, 37,476 shares	428	0	428	0	0	0
Restricted stock issued, net of forfeitures, 91,078 shares	0	1	-1	0	0	0
Net income	4,029	0	0	0	4,029	0
Dividends declared and paid	-1,608	0	0	0	-1,608	0
Other comprehensive income	3,011	0	0	0	0	3,011
Ending balance at Sep. 30, 2014	$215,430	$116	$111,819	($7,713)	$110,725	$483

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Stockholders' Equity (Unaudited) (Parenthetical)	9 Months Ended
	Sep. 30, 2014
Statement of Stockholders' Equity Parenthetical [Abstract]	'
ESOP shares allocated	28,566
Stock purchased and retired at cost	6,469
Stock options exercised	37,476
Restricted Stock Award, Net of Forfeitures	91,078

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flow (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$4,029	$4,803
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	2,260	2,534
Provision for loan losses	1,925	1,800
Amortization of net premium on investments	1,903	2,505
Amortization and impairment of mortgage servicing rights	231	-15
Net gains on sales of securities available for sale	-607	-1,701
Net gains on sales of loans	-1,031	-1,427
Proceeds from sales of loans held for sale	42,256	54,174
Loans originated for sale	-42,034	-45,557
Net loss on write-down of other real estate owned	29	227
Net losses (gains) on disposition of premises and equipment	1	-344
Net gains on sales of repossessed assets	-1	-17
Increase in cash surrender value of bank-owned life insurance	-1,063	-1,051
Federal Home Loan Bank Stock Dividends	-46	-31
ESOP compensation expense	691	685
Share-based compensation	1,612	1,459
Excess Tax Benefit from Share-based Compensation	-150	-129
Changes in operating assets and liabilities:	'	'
Accrued interest receivable	279	-162
Other assets	151	4,881
Accrued interest payable and other liabilities	6,624	4,593
Net cash provided by operating activities	17,059	27,227
Securities available for sale:	'	'
Purchases	-77,185	-210,004
Proceeds from sales	18,099	46,215
Proceeds from maturities, calls, and principal repayments	52,452	84,665
Purchases of other investments	-197	-8,649
Redemptions of other investments	3,539	1,195
Purchase of bank-owned life insurance	0	-10,000
Net decrease (increase) in loans held for investment	52,169	-131,435
Purchases of premises and equipment	-748	-1,471
Proceeds from sales of premises and equipment	0	693
Proceeds from sales of foreclosed assets	2,377	2,050
Proceeds from sales of other real estate owned	264	3,807
Net cash provided by (used in) investing activities	50,770	-222,934
Cash flows from financing activities:	'	'
Net increase in deposits	-14,783	-14,285
Net (decrease) increase in Federal Home Loan Bank advances	-59,167	210,000
Net increase (decrease) in other borrowings	5,000	-10,000
Payment of Dividends	-1,608	0
Proceeds from stock options exercised	428	92
Excess tax benefit from share-based compensation	150	129
Purchase of common stock	-25	-22
Net cash (used in) provided by financing activities	-70,005	185,914
Net decrease in cash and cash equivalents	-2,176	-9,793
Cash and cash equivalents, beginning of period	15,880	23,853
Cash and cash equivalents, end of period	13,704	14,060
Supplemental cash flow information:	'	'
Interest paid	5,057	5,926
Income taxes paid, net of refunds	1,805	1,400
Non-cash transactions:	'	'
Loans transfered to other real estate owned	1,011	184
Loans transferred to foreclosed assets	2,009	2,068
Change in unrealized gains on securities available for sale	$4,562	($9,728)

Basis_of_Financial_Statement_P

Basis of Financial Statement Presentation and Significant Accounting Policies	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Financial Statement Presentation and Significant Accounting Policies	'
	Basis of Financial Statement Presentation and Significant Accounting Policies
	Basis of Presentation
	The accompanying unaudited consolidated financial statements of OmniAmerican Bancorp, Inc. (referred to herein as “the Company”) have been prepared in conformity with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. These interim consolidated financial statements and notes should be read in conjunction with the Company’s consolidated financial statements, and notes thereto, for the year ended December 31, 2013, included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 7, 2014. In management’s opinion, the interim data as of September 30, 2014 and for the three- and nine-month periods ended September 30, 2014 and 2013, includes all adjustments, consisting of only normal recurring adjustments, necessary for a fair presentation of the results of the interim periods. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full year. References to the Company include, where appropriate, OmniAmerican Bank, the Company’s wholly-owned subsidiary.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments are particularly subject to change.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2014
New Accounting Pronouncement or Change in Accounting Principle, Current Period Disclosures [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, “Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure.” This update clarifies that an in-substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of the residential real estate property collateralizing a consumer mortgage loan, upon either: (i) the creditor obtaining legal title to the property upon completion of the foreclosure; or (ii) the borrower conveying all interest in the property to the creditor to satisfy the loan through completion of a deed-in-lieu of foreclosure or through a similar legal agreement. ASU 2014-04 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.
	In April 2014, the FASB issued ASU No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” Under the new guidance, a disposal of a component of an entity or a group of components of an entity is required to be reported in discontinued operations if the disposal represents a strategic shift that has (or will have) a major effect on the entity's operations and financial results when any of the following occurs: (i) the component of an entity or group of components of an entity meets the criteria in paragraph 205-20-45-1E to be classified as held for sale; (ii) the component of an entity or group of components of an entity is disposed of by sale; or (iii) the component of an entity or group of components of an entity is disposed of other than by sale (for example, by abandonment or in a distribution to owners in a spinoff). ASU 2014-08 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.
	In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” This update states that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update affects entities that enter into contracts with customers to transfer goods or services or enter into contracts for the transfer of nonfinancial assets, unless those contracts are within the scope of other standards. ASU 2014-09 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption is not permitted. The adoption of this guidance is not expected to have a material impact on the Company’s financial statements.
	In June 2014, the FASB issued ASU 2014-11, “Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures.” This update aligns the accounting for repurchase-to-maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements by accounting for these transactions as secured borrowings. This update also requires a new disclosure for transactions economically similar to repurchase agreements in which the transferor retains substantially all of the exposure to the economic return of the transferred financial assets throughout the term of the transaction. ASU 2014-11 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014. Early adoption is not permitted. The adoption of this guidance is not expected to have a significant impact on the Company's financial statements.
	In August 2014, the FASB issued ASU 2014-14, “Receivables - Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Mortgage Loans upon Foreclosure.” This update affects creditors that hold government-guaranteed mortgage loans, including those guaranteed by the Federal Housing Administration (FHA) of the U.S. Department of Housing and Urban Development (HUD), and the U.S. Department of Veterans Affairs (VA). The update requires that, upon foreclosure, a guaranteed mortgage loan be derecognized and a separate other receivable be recognized when specific criteria are met. ASU 2014-14 is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2014. The adoption of this guidance is not expected to have a significant impact on the Company's financial statements.

Investment_Securities

Investment Securities	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	Investment Securities
	The amortized cost and estimated fair values of investment securities available for sale and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) as of September 30, 2014 and December 31, 2013 were as follows:
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
		(In thousands)
	September 30, 2014
	U. S. government sponsored mortgage-backed securities	$	278,912	$	3,714		$	(2,544	)	$	280,082
	U. S. government sponsored collateralized mortgage obligations	148,825		1,801			(968		)	149,658
	Agency bonds	5,000		—			(242		)	4,758
	Municipal obligations	181		—			(3		)	178
	Other equity securities	6,000		—			(1		)	5,999
	Total investment securities available for sale	$	438,918	$	5,515		$	(3,758	)	$	440,675
	December 31, 2013
	U. S. government sponsored mortgage-backed securities	$	282,180	$	2,616		$	(5,208	)	$	279,588
	U. S. government sponsored collateralized mortgage obligations	140,221		1,758			(1,403		)	140,576
	Agency bonds	5,000		—			(462		)	4,538
	Municipal obligations	179		—			(9		)	170
	Other equity securities	6,000		—			(97		)	5,903
	Total investment securities available for sale	$	433,580	$	4,374		$	(7,179	)	$	430,775
	Investment securities available for sale with gross unrealized losses at September 30, 2014 and December 31, 2013, aggregated by investment category and length of time that individual securities have been in a continuous loss position, were as follows:
		Continuous Unrealized Losses Existing for
		Less Than 12 Months					Greater Than 12 Months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
		(In thousands)
	September 30, 2014
	U. S. government sponsored mortgage-backed securities	$	44,139	$	(145	)	$	90,496		$	(2,399	)	$	134,635	$	(2,544	)
	U. S. government sponsored collateralized mortgage obligations	48,080		(300		)	16,430			(668		)	64,510		(968		)
	Agency bonds	—		—			4,758			(242		)	4,758		(242		)
	Municipal obligations	—		—			178			(3		)	178		(3		)
	Other equity securities	5,999		(1		)	—			—			5,999		(1		)
		$	98,218	$	(446	)	$	111,862		$	(3,312	)	$	210,080	$	(3,758	)
	December 31, 2013
	U. S. government sponsored mortgage-backed securities	$	142,715	$	(5,088	)	$	2,248		$	(120	)	$	144,963	$	(5,208	)
	U. S. government sponsored collateralized mortgage obligations	50,066		(1,403		)	—			—			50,066		(1,403		)
	Agency bonds	4,538		(462		)	—			—			4,538		(462		)
	Municipal obligations	170		(9		)	—			—			170		(9		)
	Other equity securities	5,903		(97		)	—			—			5,903		(97		)
		$	203,392	$	(7,059	)	$	2,248		$	(120	)	$	205,640	$	(7,179	)
	At September 30, 2014, the Company owned 192 investment securities of which 80 had unrealized losses. At December 31, 2013, the Company owned 202 investment securities of which 82 had unrealized losses. Unrealized losses generally result from interest rate levels differing from those existing at the time of purchase of the securities and, as to mortgage-backed securities, estimated prepayment speeds. These unrealized losses are considered to be temporary as they reflect fair values on September 30, 2014 and December 31, 2013, and are subject to change daily as interest rates fluctuate. The Company does not intend to sell these securities, and it is more likely than not that the Company will not be required to sell prior to recovery. Management evaluates investment securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent of the Company to sell or whether it would be more likely than not required to sell its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value.
	The amortized cost and fair value of securities available for sale by contractual maturity at September 30, 2014 are summarized in the following table. Maturities are based on the final contractual payment dates, and do not reflect the impact of prepayments or earlier redemptions that may occur.
		Amortized Cost		Fair Value
		(In thousands)
	Due in one year or less	$	—	$	—
	Due from one to five years	—		—
	Due from five to ten years	31,606		31,072
	Due after ten years	401,312		403,604
	Equity securities	6,000		5,999
	Total	$	438,918	$	440,675
	Investment securities with a fair value of $91.4 million and $161.6 million at September 30, 2014 and December 31, 2013, respectively, were pledged to secure Federal Home Loan Bank advances. In addition, investment securities with a fair value of $2.5 million and $2.2 million at September 30, 2014 and December 31, 2013, respectively, were pledged to secure repurchase agreements which are included in other borrowings.
	Sales activity of securities available for sale for the three and nine months ended September 30, 2014 and 2013 was as follows:
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014		2013			2014			2013
		(In thousands)
	Proceeds from sales of investment securities	$	—	$	3		$	18,099		$	46,215
	Gross gains from sales of investment securities	—		—			607			1,701
	Gains or losses on the sales of securities are recognized at the trade date utilizing the specific identification method.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loans and Allowance for Loan Losses	'
	Loans and Allowance for Loan Losses
	The composition of the loan portfolio was as follows at the dates indicated:
		September 30,				December 31,
		2014				2013
		(In thousands)
	Residential real estate loans:
	One- to four-family	$	274,902			$	262,723
	Home equity	15,654				17,106
	Total residential real estate loans	290,556				279,829
	Commercial loans:
	Commercial real estate	107,259				106,560
	Real estate construction	73,210				59,648
	Commercial business	76,083				69,320
	Total commercial loans	256,552				235,528
	Consumer loans:
	Automobile, indirect	177,213				264,671
	Automobile, direct	31,478				31,598
	Other consumer	16,074				15,330
	Total consumer loans	224,765				311,599
	Total loans	771,873				826,956
	Plus (less):
	Deferred fees and discounts	2,142				4,370
	Allowance for loan losses	(6,248		)		(6,445		)
	Total loans receivable, net	$	767,767			$	824,881
	The Company originates one- to four-family residential real estate loans which are sold in the secondary market. The Company retains the servicing for residential real estate loans that are sold to the Federal National Mortgage Association (“FNMA”). Residential real estate loans serviced for FNMA are not included as assets on the consolidated balance sheets. The following table presents loans sold and serviced as of September 30, 2014 and December 31, 2013:
		September 30,				December 31,
		2014				2013
		(In thousands)
	Principal balances of the loans sold and serviced for FNMA	$	203,045			$	189,084
	Mortgage servicing rights associated with the mortgage loans serviced for FNMA	1,559				1,473
	The following table presents loans identified as impaired by class of loans as of September 30, 2014 and December 31, 2013:
		Recorded				Unpaid				Related				Average				Interest
		Balance				Principal				Allowance				Recorded				Income
						Balance								Balance				Recognized
		(In thousands)
	September 30, 2014:
	With no related allowance recorded:
	One- to four-family	$	6,334			$	6,334			$	—			$	7,189			$	169
	Home equity	—				—				—				28				—
	Commercial real estate	837				837				—				1,838				90
	Real estate construction	—				—				—				—				—
	Commercial business	—				—				—				267				1
	Automobile, indirect	684				684				—				640				11
	Automobile, direct	29				29				—				208				—
	Other consumer	26				26				—				12				—
	Impaired loans with no related allowance recorded	7,910				7,910				—				10,182				271
	With an allowance recorded:
	One- to four-family	$	—			$	—			$	—			$	—			$	—
	Home equity	—				—				—				—				—
	Commercial real estate	500				500				153				531				—
	Real estate construction	—				—				—				—				—
	Commercial business	640				640				172				793				4
	Automobile, indirect	—				—				—				—				—
	Automobile, direct	—				—				—				—				—
	Other consumer	—				—				—				—				—
	Impaired loans with an allowance recorded	1,140				1,140				325				1,324				4
	Total	$	9,050			$	9,050			$	325			$	11,506			$	275
	December 31, 2013:
	With no related allowance recorded:
	One- to four-family	$	7,531			$	7,531			$	—			$	7,468			$	305
	Home equity	42				42				—				14				1
	Commercial real estate	2,347				2,347				—				4,237				31
	Real estate construction	—				—				—				3,171				66
Commercial business	591				591				—				700				21
Automobile, indirect	824				824				—				738				26
Automobile, direct	32				32				—				34				2
Other consumer	15				15				—				4				—
Impaired loans with no related allowance recorded	11,382				11,382				—				16,366				452
With an allowance recorded:
One- to four-family	$	—			$	—			$	—			$	—			$	—
Home equity	—				—				—				—				—
Commercial real estate	551				551				321				46				—
Real estate construction	—				—				—				—				—
Commercial business	1,040				1,040				200				1,064				8
Automobile, indirect	—				—				—				—				—
Automobile, direct	—				—				—				—				—
Other consumer	—				—				—				—				—
Impaired loans with an allowance recorded	1,591				1,591				521				1,110				8
Total	$	12,973			$	12,973			$	521			$	17,476			$	460
For the nine months ended September 30, 2013, the average recorded investment in impaired loans and the related amount of interest income recognized during the time within the period that the loans were impaired were $18.5 million and $324,000, respectively.
As of September 30, 2014 and December 31, 2013, no additional funds were committed to be advanced in connection with impaired loans.
The following table presents the recorded investment in non-accrual loans by class of loans as of September 30, 2014 and December 31, 2013:
	September 30,				December 31,
	2014				2013
	(In thousands)
Residential real estate loans:
One- to four-family	$	1,063			$	2,050
Home equity	—				42
Commercial loans:
Commercial real estate	618				800
Real estate construction	—				—
Commercial business	403				864
Consumer loans:
Automobile, indirect	427				558
Automobile, direct	16				15
Other consumer	26				15
Total	$	2,553			$	4,344
There were no loans greater than 90 days past due that continued to accrue interest at September 30, 2014 or December 31, 2013.
The following table presents the aging of the recorded investment in past due loans as of September 30, 2014 and December 31, 2013 by class of loans:
	30-59				60-89				90 Days				Total				Loans Not		Total
	Days				Days				and				Past Due				Past Due
	Past Due				Past Due				Greater
									Past Due
	(In thousands)
September 30, 2014:
Residential real estate loans:
One- to four-family	$	—			$	625			$	953			$	1,578			$	273,324	$	274,902
Home equity	—				—				—				—				15,654		15,654
Commercial loans:
Commercial real estate	65				—				118				183				107,076		107,259
Real estate construction	—				—				—				—				73,210		73,210
Commercial business	31				—				75				106				75,977		76,083
Consumer loans:
Automobile, indirect	1,990				446				427				2,863				174,350		177,213
Automobile, direct	76				—				17				93				31,385		31,478
Other consumer	87				21				26				134				15,940		16,074
Total loans	$	2,249			$	1,092			$	1,616			$	4,957			$	766,916	$	771,873
	30-59				60-89				90 Days				Total				Loans Not		Total
	Days				Days				and				Past Due				Past Due
	Past Due				Past Due				Greater
									Past Due
	(In thousands)
December 31, 2013:
Residential real estate loans:
One- to four-family	$	1,170			$	—			$	1,932			$	3,102			$	259,621	$	262,723
Home equity	1				—				42				43				17,063		17,106
Commercial loans:
Commercial real estate	—				—				120				120				106,440		106,560
Real estate construction	876				—				—				876				58,772		59,648
Commercial business	—				—				—				—				69,320		69,320
Consumer loans:
Automobile, indirect	2,217				615				558				3,390				261,281		264,671
Automobile, direct	48				21				15				84				31,514		31,598
Other consumer	72				33				15				120				15,210		15,330
Total loans	$	4,384			$	669			$	2,682			$	7,735			$	819,221	$	826,956
Our methodology for evaluating the adequacy of the allowance for loan losses consists of:
•	a specific loss component which is the allowance for impaired loans; and
•	a general loss component for all other loans not individually evaluated for impairment but that, on a portfolio basis, are believed to have some inherent but unidentified loss.
The specific component of the allowance for loan losses relates to loans that are considered impaired, which are generally classified as doubtful or substandard. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan are lower than the carrying value of that loan. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for non-homogeneous loans, including one- to four-family residential real estate loans with balances in excess of $1 million, commercial real estate, real estate construction, and commercial business loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, consumer and one- to four-family residential real estate loans with balances less than $1 million are not separately identified for impairment disclosures, unless such loans are the subject of a restructuring agreement.
The general component of the allowance for loan losses covers unimpaired loans and is based on the historical loss experience adjusted for other qualitative factors. The loan portfolio is stratified into homogeneous groups of loans that possess similar loss potential characteristics, and an appropriate loss ratio adjusted for other qualitative factors is applied to the homogeneous pools of loans to estimate the incurred losses in the loan portfolio. The other qualitative factors considered by management include, but are not limited to, the following:
•	changes in lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices;
•	changes in national and local economic and business conditions and developments, including the condition of various market segments;
•	changes in the nature and volume of the loan portfolio;
•	changes in the experience, ability, and depth of knowledge of the lending staff;
•	changes in the trend of the volume and severity of past due and classified loans; and trends in the volume of non-accrual loans, troubled debt restructurings, and other loan modifications;
•	changes in the quality of our loan review system and the degree of oversight by the board of directors;
•	the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and
•	the effect of external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in our current portfolio.
Consumer loans generally have greater risk of loss or default than one- to four-family residential real estate loans, particularly in the case of loans that are secured by rapidly depreciable assets, such as automobiles, or loans that are unsecured. In these cases, a risk exists that the collateral, if any, for a defaulted loan may not provide an adequate source of repayment of the outstanding loan balance. Furthermore, the application of various federal and state laws, including bankruptcy and insolvency laws, may limit the ability to recover on consumer loans.
Commercial real estate loans generally have greater credit risks compared to one- to four-family residential real estate loans, as they typically involve larger loan balances concentrated with single borrowers or groups of related borrowers. In addition, the payment experience on loans secured by income-producing properties typically depends on the successful operation of the related real estate project and thus may be subject to a greater extent to adverse conditions in the real estate market and in the general economy.
Commercial business loans involve a greater risk of default than residential real estate loans of like duration since their repayment generally depends on the successful operation of the borrower’s business and the sufficiency of collateral, if any. Loans secured by multi-family residential real estate generally involve a greater degree of credit risk than one- to four-family residential real estate loans and carry larger loan balances. This increased credit risk is a result of several factors, including the concentration of principal in a limited number of loans and borrowers, the effects of general economic conditions on income producing properties, and the increased difficulty of evaluating and monitoring these types of loans. Furthermore, the repayment of loans secured by multi-family mortgages typically depends upon the successful operation of the related real estate property. If the cash flow from the project is reduced, the borrower’s ability to repay the loan may be impaired.
Real estate construction loans generally have greater credit risk than traditional one- to four-family residential real estate loans. The repayment of these loans depends upon the sale of the property to third parties or the availability of permanent financing upon completion of all improvements. In the event a loan is made on property that is not yet approved for the planned development, there is the risk that approvals will not be granted or will be delayed. These events may adversely affect the borrower and the collateral value of the property. Real estate construction loans also expose the Company to the risk that improvements will not be completed on time in accordance with specifications and projected costs. In addition, the ultimate sale or rental of the property may not occur as anticipated.
When establishing the allowance for loan losses, management categorizes loans into risk categories based on the class of loans — residential real estate, commercial, or consumer — and relevant information about the ability of the borrowers to repay the loans, such as the current economic conditions, historical payment experience, the nature and volume of the loan portfolio, the financial strength of the borrower, and the estimated value of any underlying collateral, among other factors. Management classifies the loans individually analyzed for impairment as to credit risk. This analysis includes residential real estate loans with an outstanding balance in excess of $1 million and non-homogeneous loans, such as commercial real estate, real estate construction, and commercial business loans. The following definitions for the credit risk ratings are used for such loans:
Special mention. Special mention loans have potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the institution’s credit position at some future date. Special mention assets are not adversely classified and do not expose the institution to sufficient risk to warrant adverse classification.
Substandard. Substandard loans have well defined weaknesses where a payment default and/or a loss is possible, but not yet probable. Loans so classified are inadequately protected by the current net worth and repayment capacity of the obligor or of the collateral pledged, if any. If deficiencies are not corrected quickly, there is a possibility of loss.
Doubtful. Doubtful loans have the weaknesses and characteristics of substandard loans, but the available information suggests that collection or liquidation in its entirety, on the basis of currently existing facts, conditions and values, is highly improbable. The possibility of a loss is exceptionally high, but certain identifiable contingencies could possibly arise (proposed merger, acquisition, capital injection, refinancing plans, and pledging of additional collateral) that may strengthen the loan, such that it is reasonable to defer its classification as a loss until a more exact status is determined.
Loans not meeting the criteria described above are considered to be pass-rated loans. The following table presents the risk category of loans by class for loans individually analyzed for impairment as of September 30, 2014 and December 31, 2013:
	Commercial Real Estate				Real Estate				Commercial				One- to Four-				Total
					Construction				Business				Family
	(In thousands)
September 30, 2014:
Pass	$	102,992			$	73,210			$	72,336			$	17,051			$	265,589
Special Mention	319				—				1,215				—				1,534
Substandard	3,948				—				2,532				4,551				11,031
Doubtful	—				—				—				—				—
	$	107,259			$	73,210			$	76,083			$	21,602			$	278,154
December 31, 2013:
Pass	$	101,134			$	59,536			$	64,155			$	15,514			$	240,339
Special Mention	735				—				2,164				—				2,899
Substandard	4,691				112				3,001				3,175				10,979
Doubtful	—				—				—				—				—
	$	106,560			$	59,648			$	69,320			$	18,689			$	254,217
The Company classifies residential real estate loans that are not analyzed individually for impairment (less than $1 million) as prime or subprime. The Company defines a subprime residential real estate loan as any loan to a borrower who has no credit score or a credit score of less than 661 along with at least one of the following at the time of funding:
•	Two or more 30 day delinquencies in the past 12 months;
•	One or more 60 day delinquencies in the past 24 months;
•	Bankruptcy filing within the past 60 months;
•	Judgment or unpaid charge-off of $500 or more in the last 24 months; and
•	Foreclosure or repossession in the past 24 months.
All other residential real estate loans not individually analyzed for impairment are classified as prime.
The following table presents the prime and subprime residential real estate loans collectively evaluated for impairment as of September 30, 2014 and December 31, 2013:
	One- to				Home				Total
	Four-				Equity
	Family
	(In thousands)
September 30, 2014:
Prime	$	192,145			$	15,166			$	207,311
Subprime	61,155				488				61,643
	$	253,300			$	15,654			$	268,954
December 31, 2013:
Prime	$	195,919			$	16,521			$	212,440
Subprime	48,115				585				48,700
	$	244,034			$	17,106			$	261,140
The Company evaluates consumer loans based on the credit score for each borrower when the loan is originated. The Company defines a subprime consumer loan as any loan to a borrower who has a credit score of less than 661 at the time of funding. The following table presents the credit score for each of the classes of consumer loans as of September 30, 2014 and December 31, 2013:
Risk Tier		Credit Score		Automobile, indirect				Automobile, direct				Other consumer				Total
		(In thousands)
September 30, 2014:
A		720+		$	92,698			$	22,752			$	12,038			$	127,488
B		690–719		35,052				4,255				2,164				41,471
C		661–689		29,608				2,486				1,475				33,569
D		660 and under		19,855				1,985				397				22,237
				$	177,213			$	31,478			$	16,074			$	224,765
December 31, 2013:
A		720+		$	135,583			$	23,137			$	11,453			$	170,173
B		690–719		53,678				4,311				2,228				60,217
C		661–689		44,732				2,320				1,268				48,320
D		660 and under		30,678				1,830				381				32,889
				$	264,671			$	31,598			$	15,330			$	311,599
The following table presents the activity in the allowance for loan losses by portfolio segment based on impairment method for the three months ended September 30, 2014 and 2013:
	Residential				Commercial				Consumer				Total
	Real Estate
	(In thousands)
September 30, 2014:
Allowance for loan losses for the three months ended:
Beginning balance	$	871			$	2,853			$	2,664			$	6,388
Charge-offs	(122		)		(37		)		(672		)		(831		)
Recoveries of loans previously charged-off	18				25				98				141
Provision for loan losses	131				9				410				550
Ending balance	$	898			$	2,850			$	2,500			$	6,248
Allowance for loan losses for the nine months ended:
Beginning balance	$	851			$	2,517			$	3,077			$	6,445
Charge-offs	(224		)		(116		)		(2,166		)		(2,506		)
Recoveries of loans previously charged-off	41				59				284				384
Provision for loan losses	230				390				1,305				1,925
Ending balance	$	898			$	2,850			$	2,500			$	6,248
Ending balance attributable to loans:
Individually evaluated for impairment	$	—			$	325			$	—			$	325
Collectively evaluated for impairment	898				2,525				2,500				5,923
Total ending balance	$	898			$	2,850			$	2,500			$	6,248
September 30, 2013:
Allowance for loan losses for the three months ended:
Beginning balance	$	794			$	3,375			$	2,913			$	7,082
Charge-offs	(86		)		—				(591		)		(677		)
Recoveries of loans previously charged-off	6				18				61				85
Provision for loan losses	157				(961		)		1,004				200
Ending balance	$	871			$	2,432			$	3,387			$	6,690
Allowance for loan losses for the nine months ended:
Beginning balance	$	870			$	3,133			$	2,897			$	6,900
Charge-offs	(239		)		(202		)		(1,890		)		(2,331		)
Recoveries of loans previously charged-off	28				48				245				321
Provision for loan losses	212				(547		)		2,135				1,800
Ending balance	$	871			$	2,432			$	3,387			$	6,690
Ending balance attributable to loans:
Individually evaluated for impairment	$	—			$	209			$	—			$	209
Collectively evaluated for impairment	871				2,223				3,387				6,481
Total ending balance	$	871			$	2,432			$	3,387			$	6,690
The Company’s recorded investment in loans as of September 30, 2014, December 31, 2013, and September 30, 2013 related to each balance in the allowance for loan losses by portfolio segment and disaggregated on the basis of the Company’s impairment methodology is as follows:
	Residential				Commercial				Consumer				Total
	Real Estate
	(In thousands)
September 30, 2014:
Loans individually evaluated for impairment	$	6,334			$	1,977			$	739			$	9,050
Loans collectively evaluated for impairment	284,222				254,575				224,026				762,823
Total ending balance	$	290,556			$	256,552			$	224,765			$	771,873
December 31, 2013:
Loans individually evaluated for impairment	$	7,573			$	4,529			$	871			$	12,973
Loans collectively evaluated for impairment	272,256				230,999				310,728				813,983
Total ending balance	$	279,829			$	235,528			$	311,599			$	826,956
September 30, 2013:
Loans individually evaluated for impairment	$	7,851			$	6,698			$	719			$	15,268
Loans collectively evaluated for impairment	270,280				243,672				334,766				848,718
Total ending balance	$	278,131			$	250,370			$	335,485			$	863,986
A loan is considered a troubled debt restructuring (“TDR”) if the Company, for economic or legal reasons related to a debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. Concessions granted under a TDR typically involve a temporary or permanent reduction in the interest rate to less than a current market rate of interest or an extension of a loan’s stated maturity date. Loans classified as TDRs are designated as impaired.
A summary of the Company’s loans classified as TDRs at September 30, 2014 and December 31, 2013 is presented below:
	September 30,				December 31,
	2014				2013
	(In thousands)
TDR
Residential Real Estate	$	5,380			$	6,276
Commercial	1,047				2,581
Consumer	308				382
Total TDR	6,735				9,239
Less: TDR in non-accrual status
Residential Real Estate	109				795
Commercial	328				483
Consumer	38				99
Total performing TDR	$	6,260			$	7,862
The Company may grant concessions through a number of different restructuring methods. The following table presents the outstanding principal balance of loans by class and by method of concession that were the subject of a TDR during the nine months ended September 30, 2014 and 2013:
	Residential				Commercial				Consumer				Total
	Real Estate
	(In thousands)
Nine Months Ended September 30, 2014:
Interest rate reduction	$	1,430			$	—			$	48			$	1,478
Loan maturity extension	—				—				—				—
Forbearance	—				—				—				—
Principal reduction	—				—				35				35
Total	$	1,430			$	—			$	83			$	1,513
Nine Months Ended September 30, 2013:
Interest rate reduction	$	—			$	365			$	24			$	389
Loan maturity extension	—				—				28				28
Forbearance	—				—				—				—
Principal reduction	—				—				—				—
Total	$	—			$	365			$	52			$	417
The following table presents the number of loans modified and the balances before and after modification for the nine months ended September 30, 2014 and 2013:
	Number of			Pre-Modification				Post-Modification
	Loans			Outstanding				Outstanding
				Recorded Balance				Recorded Balance
	(Dollar amounts in thousands)
Nine Months Ended September 30, 2014:
Residential Real Estate	1			$	1,430			$	1,430
Commercial	—			—				—
Consumer	7			98				84
Total	8			$	1,528			$	1,514
Nine Months Ended September 30, 2013:
Residential Real Estate	—			$	—			$	—
Commercial	1			371				371
Consumer	3			59				59
Total	4			$	430			$	430
Included in the impaired loans as of September 30, 2014 and December 31, 2013 were TDRs of $6.7 million and $9.2 million, respectively. The Company has allocated $62,000 and $72,000 of specific reserves to customers whose loan terms have been modified as TDRs at September 30, 2014 and December 31, 2013, respectively. As of September 30, 2014 and December 31, 2013, no additional funds were committed to be advanced in connection with TDRs.
The Company’s other real estate owned and foreclosed assets represent properties and personal collateral acquired through customer loan defaults. The property is recorded at fair value less the estimated costs to sell at the date acquired. Any difference between the book value and estimated market value is recognized as a charge-off through the allowance for loan losses. Subsequently, should the fair market value of an asset less the estimated cost to sell decline to less than the carrying amount of the asset, the deficiency is recognized in the period in which it becomes known and is included in noninterest expense.
At September 30, 2014 and December 31, 2013, the Company had balances in non-performing assets consisting of the following:
	September 30,				December 31,
	2014				2013
	(Dollar amounts in thousands)
Other real estate owned and foreclosed assets
Residential Real Estate	$	861			$	107
Commercial	70				70
Consumer	447				850
Total other real estate owned and foreclosed assets	1,378				1,027
Total non-accrual loans	2,553				4,344
Total non-performing assets	$	3,931			$	5,371
Non-accrual loans/Total loans	0.33		%		0.53		%
Non-performing assets/Total assets	0.29		%		0.39		%

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities Disclosure [Text Block]	'
	Derivative Financial Instruments
	The Company has entered into commitments with prospective residential mortgage borrowers to originate loans whereby the interest rate on the loan is determined prior to funding and the borrowers have locked into that interest rate. The interest rate lock commitments on loans originated for sale are recorded at fair value in accordance with ASC 815, “Derivatives and Hedging,” and are recorded as an other asset or an accrued liability in the consolidated balance sheets. The estimated fair values of the interest rate lock commitments are based on quoted secondary market pricing, include the fair value of the servicing rights based on the discounted present value of expected future cash flows, and assume an approximate closure rate based on recent historical experience. Changes in the fair value of interest rate lock commitments are recorded in current earnings as a component of net gains on sales of loans.
	To manage the interest rate risk associated with interest rate lock commitments and mortgage loans held for sale, the Company may enter into forward loan sales commitments to deliver mortgage loan inventory to investors. The estimated fair values of forward loan sales commitments are based on quoted secondary market pricing. The fair values of the forward loan sales commitments are recorded as an other asset or an accrued liability in the consolidated balance sheets. Changes in the fair values of forward loan sales commitments are recorded in current earnings as a component of net gains on sales of loans.
	The outstanding notional value and fair values of outstanding positions as of September 30, 2014, and 2013, and December 31, 2013, and the recorded gains and losses during the nine months ended September 30, 2014 and 2013, and the year ended December 31, 2013 were as follows:
		Outstanding Notional Balance		Fair Value		Recorded (Losses)/Gains
		(In thousands)
	September 30, 2014:
	Interest rate lock commitments	$	4,971	$	43	$	(13	)
	December 31, 2013:
	Interest rate lock commitments	$	3,453	$	56	$	(208	)
	September 30, 2013:
	Interest rate lock commitments	$	6,792	$	202	$	(62	)
	The Company had no forward loan sales commitments at September 30, 2014, December 31, 2013, or September 30, 2013.

Other_Borrowings

Other Borrowings	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Other Borrowings [Text Block]	'
	Other Borrowings
	Beginning July 26, 2007, the Company entered into sales of securities under agreements to repurchase (“Repurchase Agreements”) with PNC Bank, N.A. (“PNC”). The Repurchase Agreements are structured as the sale of a specified amount of identified securities to PNC which the Company has agreed to repurchase five years after the initial sale. The Repurchase Agreements are treated as financings, and the obligations to repurchase securities sold are included in other borrowings in the consolidated balance sheets. The underlying securities continue to be carried as assets of the Company, and the Company is entitled to receive interest and principal payments on the underlying securities. The Company had $2.0 million in repurchase agreements outstanding at September 30, 2014 and December 31, 2013. These repurchase agreements were secured by investment securities with a fair value of $2.5 million and $2.2 million at September 30, 2014 and December 31, 2013, respectively.
	Other borrowings included overnight borrowings from the Federal Home Loan Bank of Dallas of $5.0 million with an interest rate of 0.15% at September 30, 2014. There were no overnight borrowings on December 31, 2013.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
	Sep. 30, 2014
Employee Benefits and Share-based Compensation [Abstract]	'
Employee Benefit Plans	'
	Employee Benefit Plans
	Employee Stock Ownership Plan
	OmniAmerican Bank adopted an Employee Stock Ownership Plan (“ESOP”) effective January 1, 2010. The ESOP enables all eligible employees of OmniAmerican Bank to share in the growth of the Company through the acquisition of Company common stock. Employees are generally eligible to participate in the ESOP after completion of one year of service and attaining age 21.
	The ESOP purchased 8% of the shares sold in the initial public offering of the Company (952,200 shares). This purchase was facilitated by a note payable to the Company from the ESOP in the amount of $9.5 million. The note is secured by a pledge of the ESOP shares. The shares pledged as collateral are reported as unallocated ESOP shares in the accompanying consolidated balance sheets. The corresponding note is to be paid back in 25 approximately equal annual payments of $561,000 on the last day of each fiscal year, beginning December 31, 2010, including interest at an adjustable rate equal to the Wall Street Journal prime rate (3.25% as of September 30, 2014 and December 31, 2013). The note payable and the corresponding note receivable have been eliminated for consolidation purposes.
	The Company may make discretionary contributions to the ESOP in the form of debt service. Dividends received on the unallocated ESOP shares, if any, are utilized to service the debt. Shares are released for allocation to plan participants based on principal and interest payments of the note. Compensation expense is recognized based on the number of shares allocated to plan participants each year at the average market price of the stock for the current year. Released ESOP shares become outstanding for earnings per share computations.
	As compensation expense is incurred, the unallocated ESOP shares account is reduced based on the original cost of the stock. The difference between the cost and average market price of shares released for allocation is applied to additional paid-in capital.
	The ESOP shares as of September 30, 2014 and December 31, 2013 were as follows:
		September 30,				December 31,
		2014				2013
	Allocated shares	180,918				152,352
	Unearned shares	771,282				799,848
	Total ESOP shares	952,200				952,200
	Fair value of unearned shares (in thousands)	$	20,046			$	17,101
	Year-to-date compensation expense recognized from the release of shares from the ESOP (in thousands)	691				893
	Pension Plan
	The Company has a noncontributory defined benefit pension plan (the “Pension Plan”) that provides for benefits to be paid to eligible employees at retirement based primarily upon years of service with the Company and compensation levels at retirement. Effective December 31, 2006, the Company froze benefits under the Pension Plan, so that no further benefits would be earned by employees after that date. In addition, no new participants may be added to the Pension Plan after December 31, 2006.
	The net periodic pension cost for the three and nine months ended June 30, 2014 and 2013 includes the following components:
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
		(In thousands)
	Interest cost on projected benefit obligation	$	55			$	57			$	165			$	171
	Expected return on assets	(86		)		(74		)		(258		)		(222		)
	Amortization of net loss	11				48				33				144
	Net periodic pension cost	$	(20	)		$	31			$	(60	)		$	93
	Share-Based Compensation
	At its annual meeting held May 24, 2011, the Company’s shareholders approved the OmniAmerican Bancorp, Inc. 2011 Equity Incentive Plan (the “Plan”) which provides for the grant of stock-based and other incentive awards to officers, employees, and directors of the Company. The Plan provides the board or a committee thereof with the flexibility to award no less than half the eligible awards, constituting 7% of the shares issued in the Company’s initial public offering, in the form of stock options and up to 7% of the shares issued in the initial public offering in the form of restricted stock. By resolution by the board of directors, the board confirmed that restricted stock awards will not exceed 4% of the common stock sold in the Company’s initial public offering. Pursuant to board resolution, 1,190,250 options to purchase shares of common stock and 476,100 restricted shares of common stock were made available. Share-based compensation expense for the three and nine months ended September 30, 2014 and 2013 was as follows:
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
		(In thousands)
	Share-based compensation expense	$	571			$	565			$	1,612			$	1,459
	Restricted Stock
	Compensation expense for restricted stock is recognized over the vesting period of the awards based on the fair value of the stock at grant date, which is determined using the last sale price as quoted on the NASDAQ Stock Market. Shares awarded to employees vest at a rate of 20% of the initially awarded amount per year, beginning on the first anniversary date of the award, and are contingent upon continuous service by the recipient through the vesting date. Shares awarded to directors vest at rates of 20% to 33% of the initially awarded amount per year, beginning on the first anniversary date of the award, and are contingent upon continuous service by the recipient through the vesting date. Under the terms of the Plan, awarded shares are restricted as to transferability and may not be sold, assigned, or transferred prior to vesting. The vesting period is subject to acceleration of vesting upon the involuntary termination of the award recipient’s service following a change in control of the Company or upon the termination of the award recipient’s service due to death or disability. Total restricted shares issuable pursuant to board resolution were 476,100 at September 30, 2014, of which 392,616 shares had been issued under the Plan through September 30, 2014.
	A summary of changes in the Company’s non-vested restricted shares for the nine months ended September 30, 2014 follows:
		Shares			Weighted-
					Average Grant
					Date Fair Value
					Per Share
	Non-vested at January 1, 2014	179,583			$	19.18
	Granted	97,078			21.16
	Vested	(57,470	)		(17.81		)
	Forfeited	(6,000	)		(21.06		)
	Non-vested at September 30, 2014	213,191			$	20.39
	As of September 30, 2014, the Company had $3.2 million of unrecognized compensation expense related to non-vested shares of restricted stock awarded under the Plan. The unrecognized compensation expense is expected to be recognized over a weighted-average period of 3.47 years. The Company applied an estimated forfeiture rate of 12.19% to employees’ and 3.70% to directors’ shares based on the historical turnover rates.
	Stock Options
	Under the terms of the Plan, stock options may not be granted with an exercise price less than the fair market value of the Company’s common stock on the date the option is granted and may not be exercised later than 10 years after the grant date. The fair market value is the last sale price as quoted on the NASDAQ Stock Market on the date of grant. All stock options granted must vest over at least three years and not more than five years, subject to acceleration of vesting upon the involuntary termination of the award recipient’s service following a change in control of the Company or upon the termination of the award recipient’s service due to death or disability.
	The fair value of each option award is estimated on the date of grant using a closed form option valuation (Black-Scholes) model. The risk-free interest rate utilized in the model is the implied yield available on U.S. Treasury zero-coupon issues with a remaining term equal to the expected term of the stock option in effect at the time of the grant. Although the contractual term of the stock options granted is 10 years, the expected term of the stock options is less because option restrictions do not permit recipients to sell or hedge their options. Management believes these restrictions encourage exercise of the option before the end of the contractual term. The Company does not have sufficient historical information about its own employees’ vesting behavior; therefore, the expected term of stock options is estimated using the average of the vesting period and contractual term. The expected volatility is based on historical information about the Company's stock volatility and the volatility of peer banks.
	The weighted average fair value of each stock option granted during the nine months ended September 30, 2014 was $7.03. The fair value of options granted was determined using the following weighted-average assumptions as of grant date:
	Risk-free interest rate	2.12	%
	Expected term of stock options (years)	7.5
	Expected stock price volatility	30.64	%
	Expected dividends	0.9	%
	Forfeiture rate — for officers and employees	13.03	%
	Forfeiture rate — for directors	—	%
	A summary of activity in the stock option portion of the Plan for the nine months ended September 30, 2014 follows:
		Shares			Weighted-				Weighted-			Aggregate
					Average				Average			Intrinsic
					Exercise Price				Remaining			Value
									Contractual Term			(In thousands)
									(years)
	Outstanding at January 1, 2014	394,933			$	16.13			7.54			$	2,088
	Granted	428,788			21.11				9.68			2,092
Exercised	(37,476	)		14.7				—			(385		)
Forfeited	(22,400	)		21.09				—			(110		)
Expired	(2,400	)		22.24				—			(9		)
Outstanding at September 30, 2014	761,445			$	18.84			8.23			$	5,445
Fully vested and expected to vest	659,368			$	18.63			8.12			$	4,851
Exercisable at September 30, 2014	191,632			$	15.6			6.57			$	1,991
As of September 30, 2014, the Company had $2.9 million of total unrecognized compensation expense related to non-vested stock options. That expense is expected to be recognized over a weighted-average period of 3.81 years. The intrinsic value for stock options is calculated based on the difference between the exercise price of the underlying awards and the market price of our common stock as of September 30, 2014.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	Earnings Per Share
	Basic earnings per common share is computed by dividing net income adjusted for distributed and undistributed earnings to participating securities by the weighted-average number of common shares outstanding for the period, reduced for average unallocated ESOP shares and average unvested restricted stock awards. Unvested share-based awards that contain nonforfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are participating securities and shall be included in the computation of earnings per share pursuant to the two-class method. Diluted earnings per common share reflects the potential dilution that could occur if securities or other contracts to issue common stock (such as stock awards and options) were exercised or converted to common stock, or resulted in the issuance of common stock that then shared in the Company’s earnings. Diluted earnings per common share is computed by dividing net income by the weighted-average number of common shares outstanding for the period increased for the dilutive effect of unexercised stock options and unvested restricted stock awards. The table below presents the information used to compute basic and diluted earnings per share:
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Dollars in thousands, except per share data)
	Earnings:
	Net income	$	1,602		$	2,196		$	4,029		$	4,803
	Distributed and undistributed earnings to participating securities	(32		)	—			(87		)	—
	Income available to common shareholders	1,570			2,196			3,942			4,803
	Basic shares:
	Weighted-average common shares outstanding	11,553,578			11,458,923			11,530,095			11,449,808
	Less: Average unallocated ESOP shares	(774,456		)	(812,544		)	(783,978		)	(822,066		)
	Average unvested restricted stock awards	(216,586		)	(199,377		)	(232,181		)	(233,265		)
	Average shares for basic earnings per share	10,562,536			10,447,002			10,513,936			10,394,477
	Net income per common share, basic	$	0.15		$	0.21		$	0.37		$	0.46
	Diluted shares:
	Weighted-average common shares outstanding for basic earnings per common share	10,562,536			10,447,002			10,513,936			10,394,477
	Add: Dilutive effects of share-based compensation plan	93,145			112,321			79,702			143,050
	Average shares for diluted earnings per share	10,655,681			10,559,323			10,593,638			10,537,527
	Net income per common share, diluted	$	0.15		$	0.21		$	0.37		$	0.46

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	ASC 820, “Fair Value Measurements and Disclosures,” establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:
	•	Level 1 Inputs - Unadjusted quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date.
	•	Level 2 Inputs - Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds, credit risks, etc.), or inputs that are derived principally from or corroborated by market data by correlation or other means.
	•	Level 3 Inputs - Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the assets or liabilities.
	A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the fair value hierarchy, is set forth below.
	Securities available for sale: Securities available for sale are valued at fair value on a recurring basis. The fair values of securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs).
	Interest rate lock commitments: Interest rate locks on commitments to originate loans for the held for sale portfolio are reported at fair value in other assets on the consolidated balance sheets with changes in value recorded in current earnings. The estimated fair values of the interest rate lock commitments are based on quoted secondary market pricing, include the fair value of the servicing rights based on the discounted present value of expected future cash flows, and assume an approximate closure rate based on recent historical experience. At September 30, 2014, for loans with terms of 180 months, the fair value of the servicing rights was estimated as 0.91% of the loan balance if the loan had an interest rate of 3.50% or lower and 0.92% of the loan balance if the loan had an interest rate of higher than 3.50% and equal to or less than 4.00%. For loans with terms greater than 180 months, the fair value was estimated as 1.19% of the loan balance if the loan had an interest rate higher than 4.00% but equal to or less than 4.50% and 1.05% of the loan balance if the loan had an interest rate higher than 4.50% but less than 5.00%. At December 31, 2013, the fair value of the servicing rights was estimated as 1.00% of the loan balance for loans with terms of 180 months, and for loans with terms of greater than 180 month, the fair value was estimated as 1.31% of the loan balance if the loan had an interest rate of 4.50% or lower and 1.08% of the loan balance if the loan had an interest rate higher than 4.50%. A significant change in the closure rate may result in a significant change in the ending fair value measurement of these derivatives relative to their total fair value. At September 30, 2014 and December 31, 2013, the estimated closure rate based on historical experience over the preceding two-year period was 82.4% and 77.1%, respectively. Because the closure rate and fair value of servicing rights are significant unobservable assumptions, interest rate lock commitments are included in Level 3 of the hierarchy.
	Assets and liabilities measured at fair value on a recurring basis are summarized below:
		Fair Value Measurements at September 30, 2014, Using								Total Fair Value at September 30, 2014
		Level 1 Inputs			Level 2 Inputs			Level 3 Inputs
		(In thousands)
	Measured on a recurring basis:
	Assets:
	Investment securities available for sale:
	U.S. government sponsored mortgage-backed securities	$	—		$	280,082		$	—	$	280,082
	U.S. government sponsored collateralized mortgage obligations	—			149,658			—		149,658
	U.S. government agency securities	—			4,758			—		4,758
	Municipal obligations	—			178			—		178
	Other equity securities	—			5,999			—		5,999
	Interest rate lock commitments	—			—			43		43
		Fair Value Measurements at December 31, 2013 Using								Total Fair Value at
										31-Dec-13
		Level 1 Inputs			Level 2 Inputs			Level 3 Inputs
		(In thousands)
	Measured on a recurring basis:
	Assets:
	Investment securities available for sale:
	U.S. government sponsored mortgage-backed securities	$	—		$	279,588		$	—	$	279,588
	U.S. government sponsored collateralized mortgage obligations	—			140,576			—		140,576
	U.S. government agency securities	—			4,538			—		4,538
	Municipal obligations	—			170			—		170
	Other equity securities	—			5,903			—		5,903
	Interest rate lock commitments	—			—			56		56
	A reconciliation and income statement classification of gains and losses for the assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the nine months ended September 30, 2014 and 2013 has not been provided since the amounts are not significant.
	In accordance with ASC Topic 820, certain financial assets and financial liabilities 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). Financial assets or liabilities required to be measured at fair value on a nonrecurring basis include impaired loans and mortgage servicing rights. Nonfinancial assets or liabilities required to be measured at fair value on a nonrecurring basis include other real estate owned.
	Impaired loans (loans which are not expected to repay all principal and interest amounts due in accordance with the original contractual terms) are measured at an observable market price (if available) or at the fair value of the loan’s collateral (if collateral dependent). Fair value of the loan’s collateral is determined by appraisals or independent valuation which is then adjusted for the estimated costs related to liquidation of the collateral. Management’s ongoing review of appraisal information may result in additional discounts or adjustments to valuation based upon more recent market sales activity or more current appraisal information derived from properties of similar type and/or locale. A significant portion of the Company’s impaired loans are measured using the estimated fair market value of the collateral less the estimated costs to sell. Therefore, the Company has categorized its impaired loans as Level 3.
	The following table presents impaired loans that were remeasured and reported at fair value through a specific reserve of the allowance for loan losses based upon the fair value of the underlying collateral during the nine months ended June 30, 2014 and 2013:
		Nine Months Ended September 30,
		2014			2013
		(In thousands)
	Carrying value of impaired loans	$	1,140		$	1,124
	Specific reserve	(325		)	(209		)
	Fair Value	$	815		$	915
	Mortgage servicing rights are carried at the lower of amortized cost or estimated fair value. The estimated fair values of mortgage servicing rights are classified as Level 3 because they are obtained from independent third-party valuations through an analysis of cash flows and incorporating estimates of assumptions market participants would use in determining fair value, including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market-driven data, such as the market’s perception of future interest rate movements. The Company’s mortgage servicing rights were recorded at $1.6 million and $1.5 million at September 30, 2014 and December 31, 2013, respectively.
	Non-financial assets measured at fair value on a non-recurring basis are limited to other real estate owned. Other real estate owned is carried at fair value less estimated selling costs (as determined by independent appraisal) within Level 3 of the fair value hierarchy. At the time of foreclosure, the value of the underlying loan is written down to the fair value of the real estate to be acquired by a charge to the allowance for loan losses, if necessary. The fair value is reviewed periodically and subsequent write-downs are recorded accordingly. The following table represents other real estate owned that was remeasured and reported at fair value as of September 30, 2014 and September 30, 2013:
		Nine Months Ended September 30,
		2014			2013
		(In thousands)
	Carrying value of other real estate owned prior to remeasurement	$	1,214		$	1,631
	Less: charge-offs recognized in the allowance for loan losses at initial acquisition	(96		)	(18		)
	Add: fair value adjustments recognized in noninterest income at initial acquisition	—			43
	Less: subsequent write-downs included in net loss on write-down of other real estate owned	(29		)	(227		)
	Less: sales of other real estate owned	(228		)	(502		)
	Carrying value of remeasured other real estate owned at end of period	$	861		$	927
	Significant unobservable inputs used in Level 3 fair value measurements for financial assets and nonfinancial assets measured at fair value on a non-recurring basis at September 30, 2014 and December 31, 2013, are summarized below:
	Quantitative Information about Level 3 Fair Value Measurements
		Fair Value			Valuation Techniques		Unobservable Input	Range
		(In thousands)						(Average)
	September 30, 2014:
	Impaired loans, net of allowance	$	468		Discounted Cash Flow Analysis		Interest rate	1.5% - 7.0% (3.9%)
							Loan term (in months)	60 - 120 (95)
		$	347		Third-Party Appraisal		Discount of market value	0% (0%)
						Estimated marketing costs	6.0% (6.0%)
						Estimated property maintenance	0% (0%)
Mortgage servicing rights	$	1,559		Discounted Cash Flow Analysis		Interest rate	2.6% - 7.9% (4.2%)
						Loan term (in months)	111 - 527 (312)
Other real estate owned	$	931		Third-Party Appraisal		Discount of market value	0% - 0.3% (0.2%)
						Estimated marketing costs	6.0% - 12.0% (8.4%)
						Estimated property maintenance	0% (0%)
December 31, 2013:
Impaired loans, net of allowance	$	840		Discounted Cash Flow Analysis		Interest rate	1.5% - 7.0% (4.9%)
						Loan term (in months)	60 - 120 (91)
	$	230		Third-Party Appraisal		Discount of market value	0% (0%)
						Estimated marketing costs	6.0% (6.0%)
						Estimated property maintenance	3.6% (3.6%)
Mortgage servicing rights	$	1,473		Discounted Cash Flow Analysis		Interest rate	2.6% - 7.9% (4.3%)
						Loan term (in months)	82 - 527 (312)
Other real estate owned	$	177		Third-Party Appraisal		Discount of market value	0% (0%)
						Estimated marketing costs	0.0% - 6.0% (2.4%)
						Estimated property maintenance	0% (0%)
There were no transfers between levels during the nine months ended September 30, 2014 or the year ended December 31, 2013.
ASC Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis.
The methodologies for estimating the fair value of financial assets and financial liabilities that are measured at fair value on a recurring or non-recurring basis are discussed above. The methodologies for the other financial assets and financial liabilities are discussed below:
Cash and cash equivalents: The carrying amounts for cash and cash equivalents approximate fair values.
Accrued interest receivable and payable: The carrying amounts for accrued interest receivable and payable approximate fair values.
Other investments: The carrying amount for other investments, which consists primarily of Federal Home Loan Bank stock, approximates fair values.
Loans held for sale: The fair value of loans held for sale is based on quoted market prices in the secondary market for loans with similar characteristics.
Loans: The estimated fair values for all fixed-rate loans are derived utilizing discounted cash flow analyses, the calculations of which are performed on groupings of loan receivables that are similar in terms of loan type and characteristics. The expected future cash flows of each grouping are discounted using the U.S. Treasury curve and current offering rates to calculate a discount spread to the curve. The estimated fair value for variable rate loans is the carrying amount. The impact of delinquent loans on the estimation of the fair values described above is not considered to have a material effect and, accordingly, delinquent loans have been disregarded in the valuation methodologies employed. Significant inputs to the fair value measurement of the loan portfolio are unobservable, and as such are classified as Level 3.
Deposits: The estimated fair value of demand deposit accounts is the carrying amount. The fair value of fixed-maturity certificates is estimated by discounting the estimated cash flows using the interest curve and current offering rates to calculate a discount spread to the curve.
Borrowed funds: The estimated fair value for borrowed funds is determined by discounting the estimated cash flows using the current rate at which similar borrowings would be made with similar ratings and maturities.
Off-balance sheet financial instruments: The fair values for the Company’s off-balance sheet commitments are estimated based on fees charged to others to enter into similar agreements taking into account the remaining terms of the agreements and credit standing of the members. The estimated fair value of these commitments is not significant.
The carrying amount and estimated fair value of the Company’s financial instruments at September 30, 2014 and December 31, 2013 are summarized as follows:
	September 30, 2014						December 31, 2013
	Carrying			Fair			Carrying		Fair
	Amount			Value			Amount		Value
	(In thousands)
Financial assets:
Level 1 inputs:
Cash and cash equivalents	$	13,704		$	13,704		$	15,880	$	15,880
Level 2 inputs:
Securities available for sale	440,675			440,675			430,775		430,775
Other investments	16,486			16,486			19,782		19,782
Loans held for sale	2,014			2,014			1,509		1,522
Accrued interest receivable	3,168			3,168			3,447		3,447
Level 3 inputs:
Loans, net	767,767			773,716			824,881		840,478
Mortgage servicing rights	1,559			1,559			1,473		1,473
Interest rate lock commitments	43			43			56		56
Financial liabilities:
Level 2 inputs:
Federal Home Loan Bank advances	$	302,833		$	305,731		$	362,000	$	360,576
Other borrowings	5,000			5,000			—		—
Accrued interest payable	320			320			389		389
Level 3 inputs:
Deposits	798,791			801,065			813,574		824,856
Repurchase agreements	2,000			2,015			2,000		2,049
Off-balance sheet financial instruments:
Loan commitments	$	—		$	—		$	—	$	—
Letters of credit	—			—			—		—

Business_Combination_Business_

Business Combination Business Combination	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Business Combination Disclosure [Text Block]	'
	Business Combination
	On April 28, 2014, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Southside Bancshares, Inc. (“Southside”), and Omega Merger Sub, Inc., a wholly owned subsidiary of Southside (“Merger Sub”), whereby Merger Sub will merge with and into the Company with the Company as the surviving corporation (the “First Merger”). Immediately after the First Merger, the Company will be merged with and into Southside with Southside as the surviving corporation and, subsequently, OmniAmerican Bank will be merged into Southside’s wholly owned bank subsidiary, Southside Bank, with Southside Bank as the surviving bank. If the First Merger is completed, shareholders of the Company will receive 0.4459 of a share of Southside’s common stock plus $13.125 in cash for each outstanding share of OmniAmerican common stock. On October 14, 2014, OmniAmerican stockholders approved the First Merger. Also on October 14, 2014, Southside shareholders approved the issuance of Southside common stock to OmniAmerican stockholders in connection with the First Merger. Completion of the mergers is subject to the approval by the appropriate regulatory agencies and other customary terms and conditions as described in the Merger Agreement. The Merger Agreement was filed with the Securities and Exchange Commission as an exhibit to the Company’s Quarterly Report on Form 10-Q for the Quarterly Period Ended March 31, 2014.

Commitments_and_Contingencies_

Commitments and Contingencies (Notes)	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	Commitments and Contingencies
	On June 25, 2014, a purported stockholder of OmniAmerican filed a lawsuit in the Circuit Court for Baltimore City, Maryland (the "Court") captioned McDougal v. OmniAmerican Bancorp, Inc., et al., Case No. 24-C-14-003920 (the "Litigation"), naming OmniAmerican, members of OmniAmerican’s board of directors, Southside and Merger Sub as defendants. The lawsuit is purportedly brought on behalf of a putative class of OmniAmerican’s public stockholders and seeks a declaration that it is properly maintainable as a class action and a certification of the plaintiff and her counsel as class representative and class counsel. The lawsuit asserts direct and derivative claims against OmniAmerican’s directors and alleges that they breached their fiduciary duties and that OmniAmerican, Southside and Merger Sub aided and abetted those alleged breaches by, among other things, (a) failing to take steps to maximize shareholder value for OmniAmerican public stockholders; (b) failing to properly value OmniAmerican; (c) failing to protect against conflicts of interest; (d) failing to disclose material information necessary for OmniAmerican stockholders to make an informed vote on the First Merger; and (e) agreeing to deal protection devices that preclude a fair sales process. Among other relief, the plaintiff seeks to enjoin the mergers. On July 9, 2014, the plaintiff filed a motion to transfer the case to Maryland's Business and Technology Case Management Program.
	On July 29, 2014, OmniAmerican, OmniAmerican’s board of directors and Southside filed a motion to dismiss the case. On July 30, 2014, the plaintiff filed a motion to take expedited discovery.
	After filing the Litigation and engaging in certain limited discovery, plaintiff's counsel indicated to defendants’ counsel that they believed additional disclosures should be made available to the stockholders of OmniAmerican. On September 12, 2014, the defendants and the plaintiff in the Litigation entered into a memorandum of understanding (the “MOU”) agreeing in principle to settle the Litigation in exchange for defendants’ agreement to make certain supplemental disclosures described below. The MOU contemplates that the parties will prepare a definitive stipulation of settlement, which will be subject to Court approval. If approved by the Court, it is anticipated that the settlement will result in a release of the defendants from any and all claims that were or could have been asserted challenging any aspect of or otherwise relating to the mergers, the merger agreement or the disclosures made in connection therewith, and that the Litigation will be dismissed with prejudice.
	Pursuant to the terms of the MOU, OmniAmerican has agreed to make certain supplemental disclosures regarding the mergers in a supplement to the joint proxy statement/prospectus. The supplemental disclosures are contained in a proxy supplement filed with the Securities and Exchange Commission on September 16, 2014, which should be read in its entirety. In return, the plaintiff has agreed to the dismissal of the Litigation with prejudice and to withdraw and/or refrain from filing any and all motions seeking to enjoin the mergers. In addition, the MOU contemplates that the parties will negotiate in good faith to attempt to agree upon an amount of attorneys' fees and expenses and that plaintiff's counsel may petition the Court for an award of attorneys’ fees and expenses, which if granted by the Court, would be paid by OmniAmerican or its insurers or successors. Should the parties fail to reach an agreement on attorneys' fees and expenses, the defendants may oppose the petition for an award of attorneys’ fees and expenses. There can be no assurance that the parties will ultimately reach agreement on a definitive stipulation of settlement or that the Court will approve the proposed settlement, even if the parties were to enter into such stipulation of settlement. In such event, the proposed settlement as contemplated by the MOU may be terminated. The proposed settlement will not affect the consideration to be paid to stockholders of OmniAmerican in connection with the proposed first merger.
	The defendants have vigorously denied, and continue to vigorously deny, any wrongdoing or liability with respect to the facts and claims asserted, or which could have been asserted, in the Litigation, including that they have committed any violations of law or breach of fiduciary duty, aided and abetted any violations of law or breaches of fiduciary duty, acted improperly in any way or have any liability or owe any damages of any kind to the plaintiff or to the purported class, and specifically deny that any further supplemental disclosure is required under any applicable rule, statute, regulation or law or that the OmniAmerican directors failed to maximize stockholder value by entering into the merger agreement with Southside and Merger Sub. The settlement contemplated by the MOU is not, and should not be construed as, an admission of wrongdoing or liability by any defendant. However, to avoid the risk of delaying the mergers, and to provide additional information to the stockholders of OmniAmerican at a time and in a manner that would not cause any delay of the mergers, the defendants agreed to the settlement described above.
	The parties considered it desirable that the Litigation be settled to avoid the substantial burden, expense, risk, inconvenience and distraction of continued litigation and to fully and finally resolve the Litigation.

Significant_Accounting_Policie

Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying unaudited consolidated financial statements of OmniAmerican Bancorp, Inc. (referred to herein as “the Company”) have been prepared in conformity with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) have been condensed or omitted pursuant to such rules and regulations. These interim consolidated financial statements and notes should be read in conjunction with the Company’s consolidated financial statements, and notes thereto, for the year ended December 31, 2013, included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 7, 2014. In management’s opinion, the interim data as of September 30, 2014 and for the three- and nine-month periods ended September 30, 2014 and 2013, includes all adjustments, consisting of only normal recurring adjustments, necessary for a fair presentation of the results of the interim periods. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full year. References to the Company include, where appropriate, OmniAmerican Bank, the Company’s wholly-owned subsidiary.
Use of Estimates	'
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates. The allowance for loan losses and the fair values of financial instruments are particularly subject to change.

Investment_Securities_Tables

Investment Securities (Tables)	9 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Amortized cost and estimated fair value	'
		Amortized		Gross			Gross			Fair Value
		Cost		Unrealized			Unrealized
				Gains			Losses
		(In thousands)
	September 30, 2014
	U. S. government sponsored mortgage-backed securities	$	278,912	$	3,714		$	(2,544	)	$	280,082
	U. S. government sponsored collateralized mortgage obligations	148,825		1,801			(968		)	149,658
	Agency bonds	5,000		—			(242		)	4,758
	Municipal obligations	181		—			(3		)	178
	Other equity securities	6,000		—			(1		)	5,999
	Total investment securities available for sale	$	438,918	$	5,515		$	(3,758	)	$	440,675
	December 31, 2013
	U. S. government sponsored mortgage-backed securities	$	282,180	$	2,616		$	(5,208	)	$	279,588
	U. S. government sponsored collateralized mortgage obligations	140,221		1,758			(1,403		)	140,576
	Agency bonds	5,000		—			(462		)	4,538
	Municipal obligations	179		—			(9		)	170
	Other equity securities	6,000		—			(97		)	5,903
	Total investment securities available for sale	$	433,580	$	4,374		$	(7,179	)	$	430,775
Continuous unrealized losses	'
		Continuous Unrealized Losses Existing for
		Less Than 12 Months					Greater Than 12 Months						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
		(In thousands)
	September 30, 2014
	U. S. government sponsored mortgage-backed securities	$	44,139	$	(145	)	$	90,496		$	(2,399	)	$	134,635	$	(2,544	)
	U. S. government sponsored collateralized mortgage obligations	48,080		(300		)	16,430			(668		)	64,510		(968		)
	Agency bonds	—		—			4,758			(242		)	4,758		(242		)
	Municipal obligations	—		—			178			(3		)	178		(3		)
	Other equity securities	5,999		(1		)	—			—			5,999		(1		)
		$	98,218	$	(446	)	$	111,862		$	(3,312	)	$	210,080	$	(3,758	)
	December 31, 2013
	U. S. government sponsored mortgage-backed securities	$	142,715	$	(5,088	)	$	2,248		$	(120	)	$	144,963	$	(5,208	)
	U. S. government sponsored collateralized mortgage obligations	50,066		(1,403		)	—			—			50,066		(1,403		)
	Agency bonds	4,538		(462		)	—			—			4,538		(462		)
	Municipal obligations	170		(9		)	—			—			170		(9		)
	Other equity securities	5,903		(97		)	—			—			5,903		(97		)
		$	203,392	$	(7,059	)	$	2,248		$	(120	)	$	205,640	$	(7,179	)
Contractual maturity	'
		Amortized Cost		Fair Value
		(In thousands)
	Due in one year or less	$	—	$	—
	Due from one to five years	—		—
	Due from five to ten years	31,606		31,072
	Due after ten years	401,312		403,604
	Equity securities	6,000		5,999
	Total	$	438,918	$	440,675
Realized gains and losses	'
		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2014		2013			2014			2013
		(In thousands)
	Proceeds from sales of investment securities	$	—	$	3		$	18,099		$	46,215
	Gross gains from sales of investment securities	—		—			607			1,701

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loan Composition	'
		September 30,				December 31,
		2014				2013
		(In thousands)
	Residential real estate loans:
	One- to four-family	$	274,902			$	262,723
	Home equity	15,654				17,106
	Total residential real estate loans	290,556				279,829
	Commercial loans:
	Commercial real estate	107,259				106,560
	Real estate construction	73,210				59,648
	Commercial business	76,083				69,320
	Total commercial loans	256,552				235,528
	Consumer loans:
	Automobile, indirect	177,213				264,671
	Automobile, direct	31,478				31,598
	Other consumer	16,074				15,330
	Total consumer loans	224,765				311,599
	Total loans	771,873				826,956
	Plus (less):
	Deferred fees and discounts	2,142				4,370
	Allowance for loan losses	(6,248		)		(6,445		)
	Total loans receivable, net	$	767,767			$	824,881
Mortgage servicing	'
		September 30,				December 31,
		2014				2013
		(In thousands)
	Principal balances of the loans sold and serviced for FNMA	$	203,045			$	189,084
	Mortgage servicing rights associated with the mortgage loans serviced for FNMA	1,559				1,473
Impaired Loans	'
		Recorded				Unpaid				Related				Average				Interest
		Balance				Principal				Allowance				Recorded				Income
						Balance								Balance				Recognized
		(In thousands)
	September 30, 2014:
	With no related allowance recorded:
	One- to four-family	$	6,334			$	6,334			$	—			$	7,189			$	169
	Home equity	—				—				—				28				—
	Commercial real estate	837				837				—				1,838				90
	Real estate construction	—				—				—				—				—
	Commercial business	—				—				—				267				1
	Automobile, indirect	684				684				—				640				11
	Automobile, direct	29				29				—				208				—
	Other consumer	26				26				—				12				—
	Impaired loans with no related allowance recorded	7,910				7,910				—				10,182				271
	With an allowance recorded:
	One- to four-family	$	—			$	—			$	—			$	—			$	—
	Home equity	—				—				—				—				—
	Commercial real estate	500				500				153				531				—
	Real estate construction	—				—				—				—				—
	Commercial business	640				640				172				793				4
	Automobile, indirect	—				—				—				—				—
	Automobile, direct	—				—				—				—				—
	Other consumer	—				—				—				—				—
	Impaired loans with an allowance recorded	1,140				1,140				325				1,324				4
	Total	$	9,050			$	9,050			$	325			$	11,506			$	275
	December 31, 2013:
	With no related allowance recorded:
	One- to four-family	$	7,531			$	7,531			$	—			$	7,468			$	305
	Home equity	42				42				—				14				1
	Commercial real estate	2,347				2,347				—				4,237				31
	Real estate construction	—				—				—				3,171				66
	Commercial business	591				591				—				700				21
	Automobile, indirect	824				824				—				738				26
	Automobile, direct	32				32				—				34				2
	Other consumer	15				15				—				4				—
	Impaired loans with no related allowance recorded	11,382				11,382				—				16,366				452
	With an allowance recorded:
	One- to four-family	$	—			$	—			$	—			$	—			$	—
	Home equity	—				—				—				—				—
	Commercial real estate	551				551				321				46				—
	Real estate construction	—				—				—				—				—
	Commercial business	1,040				1,040				200				1,064				8
	Automobile, indirect	—				—				—				—				—
	Automobile, direct	—				—				—				—				—
	Other consumer	—				—				—				—				—
	Impaired loans with an allowance recorded	1,591				1,591				521				1,110				8
	Total	$	12,973			$	12,973			$	521			$	17,476			$	460
Nonaccrual loans	'
		September 30,				December 31,
		2014				2013
		(In thousands)
	Residential real estate loans:
	One- to four-family	$	1,063			$	2,050
	Home equity	—				42
	Commercial loans:
	Commercial real estate	618				800
	Real estate construction	—				—
	Commercial business	403				864
	Consumer loans:
	Automobile, indirect	427				558
	Automobile, direct	16				15
	Other consumer	26				15
	Total	$	2,553			$	4,344
Past due loan aging	'
		30-59				60-89				90 Days				Total				Loans Not		Total
		Days				Days				and				Past Due				Past Due
		Past Due				Past Due				Greater
										Past Due
		(In thousands)
	September 30, 2014:
	Residential real estate loans:
	One- to four-family	$	—			$	625			$	953			$	1,578			$	273,324	$	274,902
	Home equity	—				—				—				—				15,654		15,654
	Commercial loans:
	Commercial real estate	65				—				118				183				107,076		107,259
	Real estate construction	—				—				—				—				73,210		73,210
	Commercial business	31				—				75				106				75,977		76,083
	Consumer loans:
	Automobile, indirect	1,990				446				427				2,863				174,350		177,213
	Automobile, direct	76				—				17				93				31,385		31,478
	Other consumer	87				21				26				134				15,940		16,074
	Total loans	$	2,249			$	1,092			$	1,616			$	4,957			$	766,916	$	771,873
		30-59				60-89				90 Days				Total				Loans Not		Total
		Days				Days				and				Past Due				Past Due
		Past Due				Past Due				Greater
										Past Due
		(In thousands)
	December 31, 2013:
	Residential real estate loans:
	One- to four-family	$	1,170			$	—			$	1,932			$	3,102			$	259,621	$	262,723
	Home equity	1				—				42				43				17,063		17,106
	Commercial loans:
	Commercial real estate	—				—				120				120				106,440		106,560
	Real estate construction	876				—				—				876				58,772		59,648
	Commercial business	—				—				—				—				69,320		69,320
	Consumer loans:
	Automobile, indirect	2,217				615				558				3,390				261,281		264,671
	Automobile, direct	48				21				15				84				31,514		31,598
	Other consumer	72				33				15				120				15,210		15,330
	Total loans	$	4,384			$	669			$	2,682			$	7,735			$	819,221	$	826,956
Risk category of loans by class for loans individually analyzed for impairment	'
		Commercial Real Estate				Real Estate				Commercial				One- to Four-				Total
						Construction				Business				Family
		(In thousands)
	September 30, 2014:
	Pass	$	102,992			$	73,210			$	72,336			$	17,051			$	265,589
	Special Mention	319				—				1,215				—				1,534
	Substandard	3,948				—				2,532				4,551				11,031
	Doubtful	—				—				—				—				—
		$	107,259			$	73,210			$	76,083			$	21,602			$	278,154
	December 31, 2013:
	Pass	$	101,134			$	59,536			$	64,155			$	15,514			$	240,339
	Special Mention	735				—				2,164				—				2,899
	Substandard	4,691				112				3,001				3,175				10,979
	Doubtful	—				—				—				—				—
		$	106,560			$	59,648			$	69,320			$	18,689			$	254,217
Real estate loans collectively evaluated for impairment	'
		One- to				Home				Total
		Four-				Equity
		Family
		(In thousands)
	September 30, 2014:
	Prime	$	192,145			$	15,166			$	207,311
	Subprime	61,155				488				61,643
		$	253,300			$	15,654			$	268,954
	December 31, 2013:
	Prime	$	195,919			$	16,521			$	212,440
	Subprime	48,115				585				48,700
		$	244,034			$	17,106			$	261,140
Consumer loans by credit score	'
	Risk Tier		Credit Score		Automobile, indirect				Automobile, direct				Other consumer				Total
			(In thousands)
	September 30, 2014:
	A		720+		$	92,698			$	22,752			$	12,038			$	127,488
	B		690–719		35,052				4,255				2,164				41,471
	C		661–689		29,608				2,486				1,475				33,569
	D		660 and under		19,855				1,985				397				22,237
					$	177,213			$	31,478			$	16,074			$	224,765
	December 31, 2013:
	A		720+		$	135,583			$	23,137			$	11,453			$	170,173
	B		690–719		53,678				4,311				2,228				60,217
	C		661–689		44,732				2,320				1,268				48,320
	D		660 and under		30,678				1,830				381				32,889
					$	264,671			$	31,598			$	15,330			$	311,599
Activity in the allowance for loan losses by portfolio segment	'
		Residential				Commercial				Consumer				Total
		Real Estate
		(In thousands)
	September 30, 2014:
	Allowance for loan losses for the three months ended:
	Beginning balance	$	871			$	2,853			$	2,664			$	6,388
	Charge-offs	(122		)		(37		)		(672		)		(831		)
	Recoveries of loans previously charged-off	18				25				98				141
	Provision for loan losses	131				9				410				550
	Ending balance	$	898			$	2,850			$	2,500			$	6,248
	Allowance for loan losses for the nine months ended:
	Beginning balance	$	851			$	2,517			$	3,077			$	6,445
	Charge-offs	(224		)		(116		)		(2,166		)		(2,506		)
	Recoveries of loans previously charged-off	41				59				284				384
	Provision for loan losses	230				390				1,305				1,925
	Ending balance	$	898			$	2,850			$	2,500			$	6,248
	Ending balance attributable to loans:
	Individually evaluated for impairment	$	—			$	325			$	—			$	325
	Collectively evaluated for impairment	898				2,525				2,500				5,923
	Total ending balance	$	898			$	2,850			$	2,500			$	6,248
	September 30, 2013:
	Allowance for loan losses for the three months ended:
	Beginning balance	$	794			$	3,375			$	2,913			$	7,082
	Charge-offs	(86		)		—				(591		)		(677		)
	Recoveries of loans previously charged-off	6				18				61				85
	Provision for loan losses	157				(961		)		1,004				200
	Ending balance	$	871			$	2,432			$	3,387			$	6,690
	Allowance for loan losses for the nine months ended:
	Beginning balance	$	870			$	3,133			$	2,897			$	6,900
	Charge-offs	(239		)		(202		)		(1,890		)		(2,331		)
	Recoveries of loans previously charged-off	28				48				245				321
	Provision for loan losses	212				(547		)		2,135				1,800
	Ending balance	$	871			$	2,432			$	3,387			$	6,690
	Ending balance attributable to loans:
	Individually evaluated for impairment	$	—			$	209			$	—			$	209
	Collectively evaluated for impairment	871				2,223				3,387				6,481
	Total ending balance	$	871			$	2,432			$	3,387			$	6,690
Investment in loans disaggregated on the basis of impairment methodology	'
		Residential				Commercial				Consumer				Total
		Real Estate
		(In thousands)
	September 30, 2014:
	Loans individually evaluated for impairment	$	6,334			$	1,977			$	739			$	9,050
	Loans collectively evaluated for impairment	284,222				254,575				224,026				762,823
	Total ending balance	$	290,556			$	256,552			$	224,765			$	771,873
	December 31, 2013:
	Loans individually evaluated for impairment	$	7,573			$	4,529			$	871			$	12,973
	Loans collectively evaluated for impairment	272,256				230,999				310,728				813,983
	Total ending balance	$	279,829			$	235,528			$	311,599			$	826,956
	September 30, 2013:
	Loans individually evaluated for impairment	$	7,851			$	6,698			$	719			$	15,268
	Loans collectively evaluated for impairment	270,280				243,672				334,766				848,718
	Total ending balance	$	278,131			$	250,370			$	335,485			$	863,986
Troubled debt restructuring summary	'
		September 30,				December 31,
		2014				2013
		(In thousands)
	TDR
	Residential Real Estate	$	5,380			$	6,276
	Commercial	1,047				2,581
	Consumer	308				382
	Total TDR	6,735				9,239
	Less: TDR in non-accrual status
	Residential Real Estate	109				795
	Commercial	328				483
	Consumer	38				99
	Total performing TDR	$	6,260			$	7,862
Troubled debt restructurings by method of concession	'
		Residential				Commercial				Consumer				Total
		Real Estate
		(In thousands)
	Nine Months Ended September 30, 2014:
	Interest rate reduction	$	1,430			$	—			$	48			$	1,478
	Loan maturity extension	—				—				—				—
	Forbearance	—				—				—				—
	Principal reduction	—				—				35				35
	Total	$	1,430			$	—			$	83			$	1,513
	Nine Months Ended September 30, 2013:
	Interest rate reduction	$	—			$	365			$	24			$	389
	Loan maturity extension	—				—				28				28
	Forbearance	—				—				—				—
	Principal reduction	—				—				—				—
	Total	$	—			$	365			$	52			$	417
TDR loans modified during the period	'
		Number of			Pre-Modification				Post-Modification
		Loans			Outstanding				Outstanding
					Recorded Balance				Recorded Balance
		(Dollar amounts in thousands)
	Nine Months Ended September 30, 2014:
	Residential Real Estate	1			$	1,430			$	1,430
	Commercial	—			—				—
	Consumer	7			98				84
	Total	8			$	1,528			$	1,514
	Nine Months Ended September 30, 2013:
	Residential Real Estate	—			$	—			$	—
	Commercial	1			371				371
	Consumer	3			59				59
	Total	4			$	430			$	430
Non-performing assets	'
		September 30,				December 31,
		2014				2013
		(Dollar amounts in thousands)
	Other real estate owned and foreclosed assets
	Residential Real Estate	$	861			$	107
	Commercial	70				70
	Consumer	447				850
	Total other real estate owned and foreclosed assets	1,378				1,027
	Total non-accrual loans	2,553				4,344
	Total non-performing assets	$	3,931			$	5,371
	Non-accrual loans/Total loans	0.33		%		0.53		%
	Non-performing assets/Total assets	0.29		%		0.39		%

Derivative_Financial_Instrumen1

Derivative Financial Instruments Derivatives Table (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivative Instruments	'
		Outstanding Notional Balance		Fair Value		Recorded (Losses)/Gains
		(In thousands)
	September 30, 2014:
	Interest rate lock commitments	$	4,971	$	43	$	(13	)
	December 31, 2013:
	Interest rate lock commitments	$	3,453	$	56	$	(208	)
	September 30, 2013:
	Interest rate lock commitments	$	6,792	$	202	$	(62	)

Employee_Benefit_Plans_Tables

Employee Benefit Plans - (Tables)	9 Months Ended
	Sep. 30, 2014
Employee Benefits and Share-based Compensation [Abstract]	'
Summary of Employee Stock Ownership Plan (ESOP) shares	'
		September 30,				December 31,
		2014				2013
	Allocated shares	180,918				152,352
	Unearned shares	771,282				799,848
	Total ESOP shares	952,200				952,200
	Fair value of unearned shares (in thousands)	$	20,046			$	17,101
	Year-to-date compensation expense recognized from the release of shares from the ESOP (in thousands)	691				893
Summary of net periodic pension cost	'
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
		(In thousands)
	Interest cost on projected benefit obligation	$	55			$	57			$	165			$	171
	Expected return on assets	(86		)		(74		)		(258		)		(222		)
	Amortization of net loss	11				48				33				144
	Net periodic pension cost	$	(20	)		$	31			$	(60	)		$	93
Share-based compensation	'
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
		(In thousands)
	Share-based compensation expense	$	571			$	565			$	1,612			$	1,459
Restricted shares activity	'
		Shares			Weighted-
					Average Grant
					Date Fair Value
					Per Share
	Non-vested at January 1, 2014	179,583			$	19.18
	Granted	97,078			21.16
	Vested	(57,470	)		(17.81		)
	Forfeited	(6,000	)		(21.06		)
	Non-vested at September 30, 2014	213,191			$	20.39
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	'
	Risk-free interest rate	2.12	%
	Expected term of stock options (years)	7.5
	Expected stock price volatility	30.64	%
	Expected dividends	0.9	%
	Forfeiture rate — for officers and employees	13.03	%
	Forfeiture rate — for directors	—	%
Stock options activity	'
		Shares			Weighted-				Weighted-			Aggregate
					Average				Average			Intrinsic
					Exercise Price				Remaining			Value
									Contractual Term			(In thousands)
									(years)
	Outstanding at January 1, 2014	394,933			$	16.13			7.54			$	2,088
	Granted	428,788			21.11				9.68			2,092
	Exercised	(37,476	)		14.7				—			(385		)
	Forfeited	(22,400	)		21.09				—			(110		)
	Expired	(2,400	)		22.24				—			(9		)
	Outstanding at September 30, 2014	761,445			$	18.84			8.23			$	5,445
	Fully vested and expected to vest	659,368			$	18.63			8.12			$	4,851
	Exercisable at September 30, 2014	191,632			$	15.6			6.57			$	1,991

Earnings_Per_Share_Tables

Earnings Per Share - (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted	'
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
		(Dollars in thousands, except per share data)
	Earnings:
	Net income	$	1,602		$	2,196		$	4,029		$	4,803
	Distributed and undistributed earnings to participating securities	(32		)	—			(87		)	—
	Income available to common shareholders	1,570			2,196			3,942			4,803
	Basic shares:
	Weighted-average common shares outstanding	11,553,578			11,458,923			11,530,095			11,449,808
	Less: Average unallocated ESOP shares	(774,456		)	(812,544		)	(783,978		)	(822,066		)
	Average unvested restricted stock awards	(216,586		)	(199,377		)	(232,181		)	(233,265		)
	Average shares for basic earnings per share	10,562,536			10,447,002			10,513,936			10,394,477
	Net income per common share, basic	$	0.15		$	0.21		$	0.37		$	0.46
	Diluted shares:
	Weighted-average common shares outstanding for basic earnings per common share	10,562,536			10,447,002			10,513,936			10,394,477
	Add: Dilutive effects of share-based compensation plan	93,145			112,321			79,702			143,050
	Average shares for diluted earnings per share	10,655,681			10,559,323			10,593,638			10,537,527
	Net income per common share, diluted	$	0.15		$	0.21		$	0.37		$	0.46

Fair_Value_Measurements_Tables

Fair Value Measurements - (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Measured on a Recurring Basis	'
		Fair Value Measurements at September 30, 2014, Using								Total Fair Value at September 30, 2014
		Level 1 Inputs			Level 2 Inputs			Level 3 Inputs
		(In thousands)
	Measured on a recurring basis:
	Assets:
	Investment securities available for sale:
	U.S. government sponsored mortgage-backed securities	$	—		$	280,082		$	—	$	280,082
	U.S. government sponsored collateralized mortgage obligations	—			149,658			—		149,658
	U.S. government agency securities	—			4,758			—		4,758
	Municipal obligations	—			178			—		178
	Other equity securities	—			5,999			—		5,999
	Interest rate lock commitments	—			—			43		43
		Fair Value Measurements at December 31, 2013 Using								Total Fair Value at
										31-Dec-13
		Level 1 Inputs			Level 2 Inputs			Level 3 Inputs
		(In thousands)
	Measured on a recurring basis:
	Assets:
	Investment securities available for sale:
	U.S. government sponsored mortgage-backed securities	$	—		$	279,588		$	—	$	279,588
	U.S. government sponsored collateralized mortgage obligations	—			140,576			—		140,576
	U.S. government agency securities	—			4,538			—		4,538
	Municipal obligations	—			170			—		170
	Other equity securities	—			5,903			—		5,903
	Interest rate lock commitments	—			—			56		56
Fair value of impaired loans	'
		Nine Months Ended September 30,
		2014			2013
		(In thousands)
	Carrying value of impaired loans	$	1,140		$	1,124
	Specific reserve	(325		)	(209		)
	Fair Value	$	815		$	915
Foreclosed Assets Remeasured and Reported at Fair Value	'
		Nine Months Ended September 30,
		2014			2013
		(In thousands)
	Carrying value of other real estate owned prior to remeasurement	$	1,214		$	1,631
	Less: charge-offs recognized in the allowance for loan losses at initial acquisition	(96		)	(18		)
	Add: fair value adjustments recognized in noninterest income at initial acquisition	—			43
	Less: subsequent write-downs included in net loss on write-down of other real estate owned	(29		)	(227		)
	Less: sales of other real estate owned	(228		)	(502		)
	Carrying value of remeasured other real estate owned at end of period	$	861		$	927
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Table Text Block]	'
	Quantitative Information about Level 3 Fair Value Measurements
		Fair Value			Valuation Techniques		Unobservable Input	Range
		(In thousands)						(Average)
	September 30, 2014:
	Impaired loans, net of allowance	$	468		Discounted Cash Flow Analysis		Interest rate	1.5% - 7.0% (3.9%)
							Loan term (in months)	60 - 120 (95)
		$	347		Third-Party Appraisal		Discount of market value	0% (0%)
							Estimated marketing costs	6.0% (6.0%)
							Estimated property maintenance	0% (0%)
	Mortgage servicing rights	$	1,559		Discounted Cash Flow Analysis		Interest rate	2.6% - 7.9% (4.2%)
							Loan term (in months)	111 - 527 (312)
	Other real estate owned	$	931		Third-Party Appraisal		Discount of market value	0% - 0.3% (0.2%)
							Estimated marketing costs	6.0% - 12.0% (8.4%)
							Estimated property maintenance	0% (0%)
	December 31, 2013:
	Impaired loans, net of allowance	$	840		Discounted Cash Flow Analysis		Interest rate	1.5% - 7.0% (4.9%)
							Loan term (in months)	60 - 120 (91)
		$	230		Third-Party Appraisal		Discount of market value	0% (0%)
							Estimated marketing costs	6.0% (6.0%)
							Estimated property maintenance	3.6% (3.6%)
	Mortgage servicing rights	$	1,473		Discounted Cash Flow Analysis		Interest rate	2.6% - 7.9% (4.3%)
							Loan term (in months)	82 - 527 (312)
	Other real estate owned	$	177		Third-Party Appraisal		Discount of market value	0% (0%)
							Estimated marketing costs	0.0% - 6.0% (2.4%)
							Estimated property maintenance	0% (0%)
Fair Value of Financial Instruments	'
	The carrying amount and estimated fair value of the Company’s financial instruments at September 30, 2014 and December 31, 2013 are summarized as follows:
		September 30, 2014						December 31, 2013
		Carrying			Fair			Carrying		Fair
		Amount			Value			Amount		Value
		(In thousands)
	Financial assets:
	Level 1 inputs:
	Cash and cash equivalents	$	13,704		$	13,704		$	15,880	$	15,880
	Level 2 inputs:
	Securities available for sale	440,675			440,675			430,775		430,775
	Other investments	16,486			16,486			19,782		19,782
	Loans held for sale	2,014			2,014			1,509		1,522
	Accrued interest receivable	3,168			3,168			3,447		3,447
	Level 3 inputs:
	Loans, net	767,767			773,716			824,881		840,478
	Mortgage servicing rights	1,559			1,559			1,473		1,473
	Interest rate lock commitments	43			43			56		56
	Financial liabilities:
	Level 2 inputs:
	Federal Home Loan Bank advances	$	302,833		$	305,731		$	362,000	$	360,576
	Other borrowings	5,000			5,000			—		—
	Accrued interest payable	320			320			389		389
	Level 3 inputs:
	Deposits	798,791			801,065			813,574		824,856
	Repurchase agreements	2,000			2,015			2,000		2,049
	Off-balance sheet financial instruments:
	Loan commitments	$	—		$	—		$	—	$	—
	Letters of credit	—			—			—		—

Investment_Securities_Amortize

Investment Securities - Amortized Cost and Estimated Fair Value (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment Securities	'	'
Amortized Cost	$438,918	$433,580
Gross Unrealized Gains	5,515	4,374
Gross Unrealized Losses	-3,758	-7,179
Fair Value	440,675	430,775
U. S. government sponsored mortgage-backed securities	'	'
Investment Securities	'	'
Amortized Cost	278,912	282,180
Gross Unrealized Gains	3,714	2,616
Gross Unrealized Losses	-2,544	-5,208
Fair Value	280,082	279,588
U. S. government sponsored collateralized mortgage obligations	'	'
Investment Securities	'	'
Amortized Cost	148,825	140,221
Gross Unrealized Gains	1,801	1,758
Gross Unrealized Losses	-968	-1,403
Fair Value	149,658	140,576
Agency Bonds	'	'
Investment Securities	'	'
Amortized Cost	5,000	5,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-242	-462
Fair Value	4,758	4,538
Municipal obligations	'	'
Investment Securities	'	'
Amortized Cost	181	179
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-3	-9
Fair Value	178	170
Other equity securities	'	'
Investment Securities	'	'
Amortized Cost	6,000	6,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-1	-97
Fair Value	$5,999	$5,903

Investment_Securities_Continuo

Investment Securities - Continuous Unrealized Losses (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	$98,218	$203,392
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	-446	-7,059
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	111,862	2,248
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	-3,312	-120
Continuous Unrealized Losses, Total, Fair Value	210,080	205,640
Continuous Unrealized Losses, Total, Unrealized Losses	-3,758	-7,179
U. S. government sponsored mortgage-backed securities	'	'
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	44,139	142,715
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	-145	-5,088
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	90,496	2,248
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	-2,399	-120
Continuous Unrealized Losses, Total, Fair Value	134,635	144,963
Continuous Unrealized Losses, Total, Unrealized Losses	-2,544	-5,208
U. S. government sponsored collateralized mortgage obligations	'	'
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	48,080	50,066
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	-300	-1,403
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	16,430	0
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	-668	0
Continuous Unrealized Losses, Total, Fair Value	64,510	50,066
Continuous Unrealized Losses, Total, Unrealized Losses	-968	-1,403
Agency Bonds	'	'
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	0	4,538
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	0	-462
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	4,758	0
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	-242	0
Continuous Unrealized Losses, Total, Fair Value	4,758	4,538
Continuous Unrealized Losses, Total, Unrealized Losses	-242	-462
Municipal obligations	'	'
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	0	170
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	0	-9
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	178	0
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	-3	0
Continuous Unrealized Losses, Total, Fair Value	178	170
Continuous Unrealized Losses, Total, Unrealized Losses	-3	-9
Other equity securities	'	'
Investment Securities	'	'
Continuous Unrealized Losses Existing for, Less than 12 Months, Fair Value	5,999	5,903
Continuous Unrealized Losses Existing for, Less than 12 Months, Unrealized Losses	-1	-97
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Fair Value	0	0
Continuous Unrealized Losses Existing for, Greater Than 12 Months, Unrealized Losses	0	0
Continuous Unrealized Losses, Total, Fair Value	5,999	5,903
Continuous Unrealized Losses, Total, Unrealized Losses	($1)	($97)

Investment_Securities_Unrealiz

Investment Securities - Unrealized Losses Narrative (Details)	Sep. 30, 2014	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'	'
Available-for-sale, Number of investments	192	202
Available-for-sale, Securities in Unrealized Loss Positions, Number of Positions	80	82

Investment_Securities_Contract

Investment Securities - Contractual Maturity (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]	'	'
Due in one year or less, Amortized Cost	$0	'
Due from one to five year, Amortized Cost	0	'
Due from five to ten years, Amortized Cost	31,606	'
Due after ten years, Amortized Cost	401,312	'
Equity securities, Amortized Cost	6,000	'
Amortized Cost	438,918	433,580
Due in one year or less, Fair Value	0	'
Due from one to five years, Fair Value	0	'
Due from five to ten years, Fair Value	31,072	'
Due after ten years, Fair Value	403,604	'
Equity securities, Fair Value	5,999	'
Fair Value	$440,675	$430,775

Investment_Securities_Pledged_

Investment Securities - Pledged Securities Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Federal Home Loan Bank Advances [Member]	'	'
Investment Securities	'	'
Securities Pledged as Collateral	$91.40	$161.60
Borrowings [Member]	'	'
Investment Securities	'	'
Securities Pledged as Collateral	$2.50	$2.20

Investment_Securities_Realized

Investment Securities - Realized Gains and Losses (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]	'	'	'	'
Proceeds from sales of investment securities	$0	$3	$18,099	$46,215
Gross gains from sales of investment securities	$0	$0	$607	$1,701

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - Loan Composition (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Residential Real Estate Loans:	'	'	'
One- to four-family	$274,902	$262,723	'
Home equity	15,654	17,106	'
Total residential real estate loans	290,556	279,829	278,131
Commercial Loans:	'	'	'
Commercial real estate	107,259	106,560	'
Real estate construction	73,210	59,648	'
Commercial business	76,083	69,320	'
Total commercial loans	256,552	235,528	250,370
Consumer Loans:	'	'	'
Automobile, indirect	177,213	264,671	'
Automobile, direct	31,478	31,598	'
Other consumer	16,074	15,330	'
Total consumer loans	224,765	311,599	335,485
Total loans	771,873	826,956	863,986
Plus (less):	'	'	'
Deferred fees and discounts	2,142	4,370	'
Allowance for loan losses	-6,248	-6,445	'
Loans, net	$767,767	$824,881	'

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Mortgage Servicing (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Loans sold with servicing retained	$203,045	$189,084
Mortgage servicing rights	$1,559	$1,473

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Impaired Loans (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Impaired Loans	'	'	'
Recorded Balance	$9,050	'	$12,973
Unpaid Principal Balance	9,050	'	12,973
Related Allowance	325	'	521
Average Recorded Balance	11,506	18,510	17,476
Interest Income Recognized	275	324	460
Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	7,910	'	11,382
Unpaid Principal Balance	7,910	'	11,382
Related Allowance	0	'	0
Average Recorded Balance	10,182	'	16,366
Interest Income Recognized	271	'	452
Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	1,140	'	1,591
Unpaid Principal Balance	1,140	'	1,591
Related Allowance	325	'	521
Average Recorded Balance	1,324	'	1,110
Interest Income Recognized	4	'	8
One- to four-family | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	6,334	'	7,531
Unpaid Principal Balance	6,334	'	7,531
Related Allowance	0	'	0
Average Recorded Balance	7,189	'	7,468
Interest Income Recognized	169	'	305
One- to four-family | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	0	'	0
Home equity | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	42
Unpaid Principal Balance	0	'	42
Related Allowance	0	'	0
Average Recorded Balance	28	'	14
Interest Income Recognized	0	'	1
Home equity | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	0	'	0
Commercial real estate | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	837	'	2,347
Unpaid Principal Balance	837	'	2,347
Related Allowance	0	'	0
Average Recorded Balance	1,838	'	4,237
Interest Income Recognized	90	'	31
Commercial real estate | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	500	'	551
Unpaid Principal Balance	500	'	551
Related Allowance	153	'	321
Average Recorded Balance	531	'	46
Interest Income Recognized	0	'	0
Real estate construction | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	3,171
Interest Income Recognized	0	'	66
Real estate construction | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	0	'	0
Commercial business | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	591
Unpaid Principal Balance	0	'	591
Related Allowance	0	'	0
Average Recorded Balance	267	'	700
Interest Income Recognized	1	'	21
Commercial business | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	640	'	1,040
Unpaid Principal Balance	640	'	1,040
Related Allowance	172	'	200
Average Recorded Balance	793	'	1,064
Interest Income Recognized	4	'	8
Automobile, indirect | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	684	'	824
Unpaid Principal Balance	684	'	824
Related Allowance	0	'	0
Average Recorded Balance	640	'	738
Interest Income Recognized	11	'	26
Automobile, indirect | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	0	'	0
Automobile, direct | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	29	'	32
Unpaid Principal Balance	29	'	32
Related Allowance	0	'	0
Average Recorded Balance	208	'	34
Interest Income Recognized	0	'	2
Automobile, direct | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	0	'	0
Other consumer | Impaired loan with no related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	26	'	15
Unpaid Principal Balance	26	'	15
Related Allowance	0	'	0
Average Recorded Balance	12	'	4
Interest Income Recognized	0	'	0
Other consumer | Impaired loans with related allowance [Member]	'	'	'
Impaired Loans	'	'	'
Recorded Balance	0	'	0
Unpaid Principal Balance	0	'	0
Related Allowance	0	'	0
Average Recorded Balance	0	'	0
Interest Income Recognized	$0	'	$0

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses - Impaired Loans Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Impaired Loans Narrative [Abstract]	'	'
Commitment to Lend on Impaired loans	$0	$0

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses - Nonaccrual Loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loans	'	'
Non-Accrual loans	$2,553	$4,344
Loans past due greater than 90 days and still accruing interest	0	0
One- to four-family	'	'
Loans	'	'
Non-Accrual loans	1,063	2,050
Home Equity Loans and Lines of Credit	'	'
Loans	'	'
Non-Accrual loans	0	42
Commercial real estate	'	'
Loans	'	'
Non-Accrual loans	618	800
Real estate construction	'	'
Loans	'	'
Non-Accrual loans	0	0
Commercial business	'	'
Loans	'	'
Non-Accrual loans	403	864
Automobile, indirect	'	'
Loans	'	'
Non-Accrual loans	427	558
Automobile, direct	'	'
Loans	'	'
Non-Accrual loans	16	15
Other consumer	'	'
Loans	'	'
Non-Accrual loans	$26	$15

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Past due loan aging (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	$2,249	$4,384	'
60 - 89 Days Past Due	1,092	669	'
90 Days and Greater Past Due	1,616	2,682	'
Total Past Due	4,957	7,735	'
Loans Not Past Due	766,916	819,221	'
Total loans	771,873	826,956	863,986
One- to four-family	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	0	1,170	'
60 - 89 Days Past Due	625	0	'
90 Days and Greater Past Due	953	1,932	'
Total Past Due	1,578	3,102	'
Loans Not Past Due	273,324	259,621	'
Total loans	274,902	262,723	'
Home Equity Loans and Lines of Credit [Member]	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	0	1	'
60 - 89 Days Past Due	0	0	'
90 Days and Greater Past Due	0	42	'
Total Past Due	0	43	'
Loans Not Past Due	15,654	17,063	'
Total loans	15,654	17,106	'
Commercial real estate	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	65	0	'
60 - 89 Days Past Due	0	0	'
90 Days and Greater Past Due	118	120	'
Total Past Due	183	120	'
Loans Not Past Due	107,076	106,440	'
Total loans	107,259	106,560	'
Real estate construction	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	0	876	'
60 - 89 Days Past Due	0	0	'
90 Days and Greater Past Due	0	0	'
Total Past Due	0	876	'
Loans Not Past Due	73,210	58,772	'
Total loans	73,210	59,648	'
Commercial business	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	31	0	'
60 - 89 Days Past Due	0	0	'
90 Days and Greater Past Due	75	0	'
Total Past Due	106	0	'
Loans Not Past Due	75,977	69,320	'
Total loans	76,083	69,320	'
Automobile, indirect	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	1,990	2,217	'
60 - 89 Days Past Due	446	615	'
90 Days and Greater Past Due	427	558	'
Total Past Due	2,863	3,390	'
Loans Not Past Due	174,350	261,281	'
Total loans	177,213	264,671	'
Automobile, direct	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	76	48	'
60 - 89 Days Past Due	0	21	'
90 Days and Greater Past Due	17	15	'
Total Past Due	93	84	'
Loans Not Past Due	31,385	31,514	'
Total loans	31,478	31,598	'
Other consumer	'	'	'
Analysis of the age of recorded investment in loans	'	'	'
30 - 59 Days Past Due	87	72	'
60 - 89 Days Past Due	21	33	'
90 Days and Greater Past Due	26	15	'
Total Past Due	134	120	'
Loans Not Past Due	15,940	15,210	'
Total loans	$16,074	$15,330	'

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - Risk category for loans by class for loans individually analyzed for impairment (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Loans	'	'	'
Commercial real estate	$107,259	$106,560	'
Real estate construction	73,210	59,648	'
Commercial business	76,083	69,320	'
One- to four-family	274,902	262,723	'
Home equity	15,654	17,106	'
Total loans	771,873	826,956	863,986
Individually evaluated for impairment	'	'	'
Loans	'	'	'
Commercial real estate	107,259	106,560	'
Real estate construction	73,210	59,648	'
Commercial business	76,083	69,320	'
One- to four-family	21,602	18,689	'
Total loans	278,154	254,217	'
Individually evaluated for impairment | Pass	'	'	'
Loans	'	'	'
Commercial real estate	102,992	101,134	'
Real estate construction	73,210	59,536	'
Commercial business	72,336	64,155	'
One- to four-family	17,051	15,514	'
Total loans	265,589	240,339	'
Individually evaluated for impairment | Special Mention	'	'	'
Loans	'	'	'
Commercial real estate	319	735	'
Real estate construction	0	0	'
Commercial business	1,215	2,164	'
One- to four-family	0	0	'
Total loans	1,534	2,899	'
Individually evaluated for impairment | Substandard	'	'	'
Loans	'	'	'
Commercial real estate	3,948	4,691	'
Real estate construction	0	112	'
Commercial business	2,532	3,001	'
One- to four-family	4,551	3,175	'
Total loans	11,031	10,979	'
Individually evaluated for impairment | Doubtful	'	'	'
Loans	'	'	'
Commercial real estate	0	0	'
Real estate construction	0	0	'
Commercial business	0	0	'
One- to four-family	0	0	'
Total loans	$0	$0	'

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses - Residential real estate loans collectively evaluated for impairment (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Real Estate credit risk	'	'	'
One- to four-family	$274,902	$262,723	'
Home equity	15,654	17,106	'
Total residential real estate loans	290,556	279,829	278,131
Collectively evaluated for impairment	'	'	'
Real Estate credit risk	'	'	'
One- to four-family	253,300	244,034	'
Home equity	15,654	17,106	'
Total residential real estate loans	268,954	261,140	'
Prime | Collectively evaluated for impairment	'	'	'
Real Estate credit risk	'	'	'
One- to four-family	192,145	195,919	'
Home equity	15,166	16,521	'
Total residential real estate loans	207,311	212,440	'
Subprime | Collectively evaluated for impairment	'	'	'
Real Estate credit risk	'	'	'
One- to four-family	61,155	48,115	'
Home equity	488	585	'
Total residential real estate loans	$61,643	$48,700	'

Recovered_Sheet1

Loans and Allowance for Loan Losses - Consumer loans by credit score (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Loans	'	'	'
Automobile, indirect	$177,213	$264,671	'
Automobile, direct	31,478	31,598	'
Other consumer	16,074	15,330	'
Total consumer loans	224,765	311,599	335,485
Risk Tier A | Credit Score Greater than 720	'	'	'
Loans	'	'	'
Automobile, indirect	92,698	135,583	'
Automobile, direct	22,752	23,137	'
Other consumer	12,038	11,453	'
Total consumer loans	127,488	170,173	'
Risk Tier B | Credit Score 690 to 719	'	'	'
Loans	'	'	'
Automobile, indirect	35,052	53,678	'
Automobile, direct	4,255	4,311	'
Other consumer	2,164	2,228	'
Total consumer loans	41,471	60,217	'
Risk Tier C | Credit Score 661 to 689	'	'	'
Loans	'	'	'
Automobile, indirect	29,608	44,732	'
Automobile, direct	2,486	2,320	'
Other consumer	1,475	1,268	'
Total consumer loans	33,569	48,320	'
Risk Tier D | Credit Score 660 and under	'	'	'
Loans	'	'	'
Automobile, indirect	19,855	30,678	'
Automobile, direct	1,985	1,830	'
Other consumer	397	381	'
Total consumer loans	$22,237	$32,889	'

Recovered_Sheet2

Loans and Allowance for Loan Losses - Allowance rollforward (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses	'	'	'	'
Beginning balance	$6,388	$7,082	$6,445	$6,900
Charge-offs	-831	-677	-2,506	-2,331
Recoveries of loans previously charged-off	141	85	384	321
Provision for loan losses	550	200	1,925	1,800
Ending balance	6,248	6,690	6,248	6,690
Individually evaluated for impairment	325	209	325	209
Collectively evaluated for impairment	5,923	6,481	5,923	6,481
Residential Real Estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses	'	'	'	'
Beginning balance	871	794	851	870
Charge-offs	-122	-86	-224	-239
Recoveries of loans previously charged-off	18	6	41	28
Provision for loan losses	131	157	230	212
Ending balance	898	871	898	871
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	898	871	898	871
Commercial	'	'	'	'
Financing Receivable, Allowance for Credit Losses	'	'	'	'
Beginning balance	2,853	3,375	2,517	3,133
Charge-offs	-37	0	-116	-202
Recoveries of loans previously charged-off	25	18	59	48
Provision for loan losses	9	-961	390	-547
Ending balance	2,850	2,432	2,850	2,432
Individually evaluated for impairment	325	209	325	209
Collectively evaluated for impairment	2,525	2,223	2,525	2,223
Consumer	'	'	'	'
Financing Receivable, Allowance for Credit Losses	'	'	'	'
Beginning balance	2,664	2,913	3,077	2,897
Charge-offs	-672	-591	-2,166	-1,890
Recoveries of loans previously charged-off	98	61	284	245
Provision for loan losses	410	1,004	1,305	2,135
Ending balance	2,500	3,387	2,500	3,387
Individually evaluated for impairment	0	0	0	0
Collectively evaluated for impairment	$2,500	$3,387	$2,500	$3,387

Recovered_Sheet3

Loans and Allowance for Loan Losses - Recorded investment in loans by allowance category (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Loans	'	'	'
Loans individually evaluated for impairment	$9,050	$12,973	$15,268
Loans collectively evaluated for impairment	762,823	813,983	848,718
Total residential real estate loans	290,556	279,829	278,131
Total commercial loans	256,552	235,528	250,370
Total consumer loans	224,765	311,599	335,485
Total loans	771,873	826,956	863,986
Residential Real Estate	'	'	'
Loans	'	'	'
Loans individually evaluated for impairment	6,334	7,573	7,851
Loans collectively evaluated for impairment	284,222	272,256	270,280
Commercial	'	'	'
Loans	'	'	'
Loans individually evaluated for impairment	1,977	4,529	6,698
Loans collectively evaluated for impairment	254,575	230,999	243,672
Consumer	'	'	'
Loans	'	'	'
Loans individually evaluated for impairment	739	871	719
Loans collectively evaluated for impairment	$224,026	$310,728	$334,766

Recovered_Sheet4

Loans and Allowance for Loan Losses - Troubled debt restructuring summary (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans	$6,735	$9,239
Total performing troubled debt restructuring	6,260	7,862
Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans	5,380	6,276
Troubled debt restructuring in non-accrual status	109	795
Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans	1,047	2,581
Troubled debt restructuring in non-accrual status	328	483
Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans	308	382
Troubled debt restructuring in non-accrual status	$38	$99

Recovered_Sheet5

Loans and Allowance for Loan Losses - TDR method of concession (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	$1,513	$417
Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	1,430	0
Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	365
Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	83	52
Interest rate reduction	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	1,478	389
Interest rate reduction | Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	1,430	0
Interest rate reduction | Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	365
Interest rate reduction | Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	48	24
Loan maturity extension	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	28
Loan maturity extension | Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Loan maturity extension | Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Loan maturity extension | Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	28
Forbearance	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Forbearance | Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Forbearance | Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Forbearance | Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Principal reduction	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	35	0
Principal reduction | Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Principal reduction | Commercial	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	0	0
Principal reduction | Consumer	'	'
Troubled Debt Restructurings	'	'
Troubled debt restructuring loans, restructured during the current period	$35	$0

Recovered_Sheet6

Loans and Allowance for Loan Losses - TDR loans modified during the period (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Troubled Debt Restructurings	'	'
Financing Receivable, Modifications, Number of Contracts	8	4
Pre-Modification Outstanding Recorded Balance	$1,528	$430
Post-Modification Outstanding Recorded Balance	1,514	430
Residential Real Estate	'	'
Troubled Debt Restructurings	'	'
Financing Receivable, Modifications, Number of Contracts	1	0
Pre-Modification Outstanding Recorded Balance	1,430	0
Post-Modification Outstanding Recorded Balance	1,430	0
Commercial	'	'
Troubled Debt Restructurings	'	'
Financing Receivable, Modifications, Number of Contracts	0	1
Pre-Modification Outstanding Recorded Balance	0	371
Post-Modification Outstanding Recorded Balance	0	371
Consumer	'	'
Troubled Debt Restructurings	'	'
Financing Receivable, Modifications, Number of Contracts	7	3
Pre-Modification Outstanding Recorded Balance	98	59
Post-Modification Outstanding Recorded Balance	$84	$59

Recovered_Sheet7

Loans and Allowance for Loan Losses - TDR Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Troubled Debt Restructurings	'	'
Commitment to Lend on Impaired loans	$0	$0

Recovered_Sheet8

Loans and Allowance for Loan Losses - Impaired TDR Narrative (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Financing Receivable, Modifications, Recorded Investment	$6,735	$9,239
Specific Reserve for Troubled Debt Restructurings	62	72
Loans and Leases Receivable, Troubled Debt Restructurings, Commitment to Lend	$0	$0

Recovered_Sheet9

Loans and Allowance for Loan Losses - Non-performing assets (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Nonperforming assets	'	'
Total other real estate owned and foreclosed assets	$1,378	$1,027
Non-Accrual loans	2,553	4,344
Nonperforming Assets	3,931	5,371
Non-accrual loans/Total loans	0.33%	0.53%
Non-performing assets/Total assets	0.29%	0.39%
Residential Real Estate	'	'
Nonperforming assets	'	'
Other real estate owned	861	107
Commercial	'	'
Nonperforming assets	'	'
Other real estate owned	70	70
Consumer	'	'
Nonperforming assets	'	'
Foreclosed assets	$447	$850

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Interest Rate Lock Commitments	'	'	'
Derivatives, Fair Value	'	'	'
Derivative, Notional Amount	$4,971	$6,792	$3,453
Interest Rate Lock Commitment Assets, at Fair Value	43	202	56
(Loss) Gain on Interest Rate Lock Commitments	-13	-62	-208
Forward Loan Sales Commitments	'	'	'
Derivatives, Fair Value	'	'	'
Forward loan sales commitments, at Fair Value	$0	$0	$0

Repurchase_agreements_Details

Repurchase agreements (Details) (Repurchase Agreements, USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Repurchase Agreements	'	'
Other borrowings	'	'
Debt Instrument Maturity Date (years)	'5 years	'
Securities Sold under Agreements to Repurchase	$2,000,000	$2,000,000
Securities Pledged as Collateral	$2,500,000	$2,200,000

Fed_Funds_purchased_Details

Fed Funds purchased (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Federal Funds Purchased	$5	$0
Debt Instrument, Interest Rate, Stated Percentage	0.15%	'

Employee_Benefit_Plans_Employe

Employee Benefit Plans - Employee Stock Ownership Plan (ESOP) Narrative (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Employee Stock Ownership Plan (ESOP)	'	'
ESOP plan effective date	'January 1, 2010	'
ESOP, minimum years of service of participant	1	'
ESOP, minimum participant age	21	'
Percentage of shares purchased by the bank for the ESOP plan	8.00%	'
Employee Stock Ownership Plan (ESOP), Shares in ESOP	952,200	952,200
Note payable to the Company from the ESOP	$9,500,000	'
ESOP interest rate - Wall Street Journal Prime Rate	3.25%	3.25%
Number of equal annual payments of ESOP loan	'	'
Employee Stock Ownership Plan (ESOP)	'	'
ESOP debt structure	'25	'
Amount of equal annual payments of ESOP loan	'	'
Employee Stock Ownership Plan (ESOP)	'	'
Repayment of Employee Stock Ownership Plan Loan	$561,000	'

Employee_Benefit_Plans_Employe1

Employee Benefit Plans - Employee Stock Ownership Plan (ESOP) (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Employee Benefits and Share-based Compensation [Abstract]	'	'	'
Allocated Shares	180,918	'	152,352
Unearned shares	771,282	'	799,848
Total ESOP shares	952,200	'	952,200
Fair Value of unearned ESOP shares	$20,046	'	$17,101
ESOP compensation expense	$691	$685	$893

Employee_Benefit_Plans_Pension

Employee Benefit Plans - Pension Plan (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Employee Benefits and Share-based Compensation [Abstract]	'	'	'	'
Interest cost on projected benefit obligation	$55	$57	$165	$171
Expected return on assets	-86	-74	-258	-222
Amortization of net loss	11	48	33	144
Net periodic pension cost	($20)	$31	($60)	$93

Employee_Benefit_Plans_Share_b

Employee Benefit Plans - Share based compensation (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation	'	'	'	'
Equity Incentive Plan Approval Date	'	'	'May 24, 2011	'
IPO Shares Authorized for Stock Options	'	'	7.00%	'
IPO Shares Authorized for Restricted Stock	'	'	7.00%	'
Maximum Restricted Stock Awards	'	'	4.00%	'
Share-based Compensation	$571	$565	$1,612	$1,459
Stock Options	'	'	'	'
Share-based Compensation	'	'	'	'
Number of Shares Authorized	1,190,250	'	1,190,250	'
Restricted Stock	'	'	'	'
Share-based Compensation	'	'	'	'
Number of Shares Authorized	476,100	'	476,100	'

Employee_Benefit_Plans_Restric

Employee Benefit Plans - Restricted Shares Narrative (Details) (Restricted Stock, USD $)	9 Months Ended
In Millions, except Share data, unless otherwise specified	Sep. 30, 2014
Share-based Compensation	'
Number of Shares Authorized	476,100
Total Shares Issued	392,616
Unrecognized compensation expense related to non-vested shares of restricted stock	$3.20
Weighted-average period which expense is expected to be recognized	'3 years 5 months 20 days
Officer	'
Share-based Compensation	'
Annual vesting percentage	20.00%
Forfeiture rate	12.19%
Director	'
Share-based Compensation	'
Minimum vesting period	20.00%
Maximum vesting period	33.00%
Forfeiture rate	3.70%

Employee_Benefit_Plans_Restric1

Employee Benefit Plans - Restricted Shares (Details) (USD $)	9 Months Ended
	Sep. 30, 2014
Employee Benefits and Share-based Compensation [Abstract]	'
Shares, Non-vested at Beginning of Period	179,583
Shares, Granted	97,078
Shares, Vested	-57,470
Shares, Forfeited	-6,000
Shares, Non-vested at End of Period	213,191
Weighted Average Grant Date Fair Value, Non-vested at Beginning of Period	$19.18
Weighted Average Grant Date Fair Value, Granted	$21.16
Weighted Average Grant Date Fair Value, Vested	($17.81)
Weighted Average Grant Date Fair Value, Forfeited	($21.06)
Weighted Average Grant Date Fair Value, Non-vested at End of Period	$20.39

Employee_Benefit_Plans_Stock_O

Employee Benefit Plans - Stock Option Narrative (Details) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014
Share-based Compensation	'
Minimum vesting period	'3 years
Maximum vesting period	'5 years
Weighted average fair value of each stock option granted	$7.03
Stock Options	'
Share-based Compensation	'
Contractual Term in years for stock options	'10 years
Unrecognized compensation expense related to non-vested shares of stock options	$2.90
Weighted-average period which expense is expected to be recognized	'3 years 9 months 22 days

Employee_Benefit_Plans_Employe2

Employee Benefit Plans Employee Benefit Plans - Stock Options Granted Valuation Assumptions (Details) (Stock Options)	9 Months Ended
	Sep. 30, 2014
Share-based Compensation	'
Risk-free interest rate	2.12%
Expected term of stock options (years)	'7 years 6 months 0 days
Expected stock price volatility	30.64%
Expected dividends	0.90%
Officer	'
Share-based Compensation	'
Forfeiture rate	13.03%
Director	'
Share-based Compensation	'
Forfeiture rate	0.00%

Employee_Benefit_Plans_Stock_O1

Employee Benefit Plans - Stock Options activity (Details) (USD $)	9 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Employee Benefits and Share-based Compensation [Abstract]	'	'
Shares, Outstanding at Beginning of Period	394,933	'
Shares, Granted	428,788	'
Shares, Exercised	-37,476	'
Shares, Forfeited	-22,400	'
Shares, Expired	-2,400	'
Shares, Outstanding at End of Period	761,445	394,933
Shares, Fully vested and expected to vest	659,368	'
Shares, Exercisable at End of Period	191,632	'
Weighted Average Exercise Price, Outstanding at Beginning of Period	$16.13	'
Weighted Average Exercise Price, Granted	$21.11	'
Weighted Average Exercise Price, Exercised	$14.70	'
Weighted Average Exercise Price, Forfeited	$21.09	'
Weighted Average Exercise Price, Expired	$22.24	'
Weighted Average Exercise Price, Outstanding at End of Period	$18.84	$16.13
Weighted Average Exercise Price, Fully vested and expected to vest	$18.63	'
Weighted Average Exercise Price, Exercisable at End of Period	$15.60	'
Weighted Average Remaining Contractual Term (years), Options Outstanding	'8 years 2 months 23 days	'7 years 6 months 16 days
Weighted Average Remaining Contractual Term, Granted	'9 years 8 months 5 days	'
Weighted Average Remaining Contractual Term, Fully vested and expected to vest	'8 years 1 month 12 days	'
Weighted Average Remaining Contractual Term, Exercisable at End of Period	'6 years 6 months 24 days	'
Aggregate Intrinsic Value, Outstanding at Beginning of Period	$2,088	'
Aggregate Intrinsic Value, Granted	2,092	'
Aggregate Intrinsic Value, Exercised	-385	'
Aggregate Intrinsic Value, Forfeited	-110	'
Aggregate Intrinsic Value, Expired	-9	'
Aggregate Intrinsic Value, Outstanding at End of Period	5,445	2,088
Aggregate Intrinsic Value, Fully vested and expected to vest	4,851	'
Aggregate Intrinsic Value, Exercisable at End of Period	$1,991	'

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, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income	$1,602	$2,196	$4,029	$4,803
Distributed and undistributed earnings to participating securities	-32	0	-87	0
Income available to common shareholders	$1,570	$2,196	$3,942	$4,803
Basic Shares	'	'	'	'
Weighted average common shares outstanding, basic	11,553,578	11,458,923	11,530,095	11,449,808
Less: Average unallocated ESOP shares	-774,456	-812,544	-783,978	-822,066
Average unvested restricted stock awards	-216,586	-199,377	-232,181	-233,265
Average shares for basic earnings per share	10,562,536	10,447,002	10,513,936	10,394,477
Net income per common share, basic	$0.15	$0.21	$0.37	$0.46
Diluted shares:	'	'	'	'
Weighted average common shares outstanding for basic earnings per common share	10,562,536	10,447,002	10,513,936	10,394,477
Add: Dilutive effects of share-based compensation plan	93,145	112,321	79,702	143,050
Average shares for diluted earnings per share	10,655,681	10,559,323	10,593,638	10,537,527
Net income per common share, diluted	$0.15	$0.21	$0.37	$0.46

Fair_Value_Measurements_Fair_V

Fair Value Measurements Fair Value Measurements - Interest Rate Locks Narrative (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Fair Value Disclosures - Interest Rate Locks Narrative [Abstract]	'	'
Fair Value of Servicing Rights as a Percentage of Loans with a Term of 180 Months and an interest rate of 3.5% or lower	0.91%	1.00%
Fair Value of Servicing Rights as a Percentage of Loans with a Term of 180 Months and an interest rate greater than 3.5% and equal to or less than 4.0%	0.92%	1.00%
Fair Value of Servicing Rights as a Percentage of Loans with a Term of 180 Months and an interest rate greater than 4.0%	'	1.00%
Fair Value of Servicing Rights as a Percentage of Loans with a Term greater than 180 Months and an interest rate greater than 4.0% and equal to or less than 4.5%	1.19%	'
Fair Value of Servicing Rights as a Percentage of Loans with a Term greater than 180 Months and interest rate equal to or less than 4.5%	'	1.31%
Fair Value of Servicing Rights as a Percentage of Loans with a Term greater than 180 Months and an interest rate greater than 4.5% and equal to or less than 5.0%	1.05%	1.08%
Estimated Closure Rate of Interest Rate Lock Commitments	82.40%	77.10%
Fair Value of Servicing Rights as a Percentage of Loans with a Term greater than 180 Months and an interest rate greater than 5.0%	'	1.08%

Fair_Value_Measurements_Assets

Fair Value Measurements- Assets and Liabilities Measured on a Recurring basis (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	$440,675	$430,775
U. S. government sponsored mortgage-backed securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	280,082	279,588
U. S. government sponsored mortgage-backed securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	280,082	279,588
U. S. government sponsored mortgage-backed securities | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
U. S. government sponsored mortgage-backed securities | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	280,082	279,588
U. S. government sponsored mortgage-backed securities | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
U. S. government sponsored collateralized mortgage obligations	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	149,658	140,576
U. S. government sponsored collateralized mortgage obligations | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	149,658	140,576
U. S. government sponsored collateralized mortgage obligations | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
U. S. government sponsored collateralized mortgage obligations | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	149,658	140,576
U. S. government sponsored collateralized mortgage obligations | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Agency Bonds	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	4,758	4,538
Agency Bonds | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	4,758	4,538
Agency Bonds | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Agency Bonds | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	4,758	4,538
Agency Bonds | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Municipal obligations | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	178	170
Municipal obligations | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Municipal obligations | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	178	170
Municipal obligations | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Other equity securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	5,999	5,903
Other equity securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	5,999	5,903
Other equity securities | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Other equity securities | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	5,999	5,903
Other equity securities | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Available-for-sale Securities	0	0
Interest rate lock commitments | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Interest Rate Lock Commitment Assets	43	56
Interest rate lock commitments | Fair Value, Measurements, Recurring | Fair Value, Level 1 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Interest Rate Lock Commitment Assets	0	0
Interest rate lock commitments | Fair Value, Measurements, Recurring | Fair Value, Level 2 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Interest Rate Lock Commitment Assets	0	0
Interest rate lock commitments | Fair Value, Measurements, Recurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Interest Rate Lock Commitment Assets	$43	$56

Recovered_Sheet10

Fair Value Measurements - Fair value of Impaired loans (Details) (Fair Value, Measurements, Nonrecurring, Fair Value, Level 3 Inputs, USD $)	Sep. 30, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified
Fair Value, Measurements, Nonrecurring | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Carrying value of impaired loans	$1,140	$1,124
Specific reserve	-325	-209
Fair value	$815	$915

Fair_Value_Measurements_Mortga

Fair Value Measurements - Mortgage Servicing Rights (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'
Mortgage servicing rights at fair value	$1,559	$1,473

Fair_Value_Measurements_Other_

Fair Value Measurements - Other Real Estate Owned Remeasured and Reported at Fair Value (Details) (Foreclosed Assets Remeasured during the period [Member], Fair Value, Level 3 Inputs, USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Foreclosed Assets Remeasured during the period [Member] | Fair Value, Level 3 Inputs	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis	'	'
Carrying value of other real estate owned prior to remeasurement	$1,214	$1,631
Less: charge-offs recognized in the allowance for loan losses at initial acquistion	-96	-18
Add: fair value adjustments recognized in noninterest income at initial acquisition	0	43
Less: subsequent write-downs included in net loss on write-down of other real estate owned	-29	-227
Less: sales of other real estate owned	-228	-502
Other Real Estate Owned Remeasured, Fair Value	$861	$927

Fair_Value_Measurements_Level_

Fair Value Measurements - Level 3 Asset Valuation Techniques and Unobservable Inputs (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets, Fair Value Disclosure [Abstract]	'	'
Mortgage servicing rights	$1,559	$1,473
Other real estate owned	931	177
Discounted Cash Flow Valuation Technique	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Impaired Loans, Net of Allowance	468	840
Mortgage servicing rights	1,559	1,473
Third Party Appraisal Valuation Technique	'	'
Assets, Fair Value Disclosure [Abstract]	'	'
Impaired Loans, Net of Allowance	347	230
Other real estate owned	$931	$177
Impaired Loans, Net of Allowance | Discounted Cash Flow Valuation Technique	'	'
Unobservable Inputs	'	'
Interest Rate, Range Minimum	1.50%	1.50%
Interest Rate, Range Maximum	7.00%	7.00%
Interest Rate, Range Average	3.90%	4.90%
Loan Term (in months), Range Minimum	60	60
Loan Term (in months), Range Maximum	120	120
Loan Term (in months), Range Average	95	91
Impaired Loans, Net of Allowance | Third Party Appraisal Valuation Technique	'	'
Unobservable Inputs	'	'
Discount of Market Value, Range Minimum	0.00%	0.00%
Discount of Market Value, Range Maximum	0.00%	0.00%
Discount of Market Value, Range Average	0.00%	0.00%
Estimated Marketing Costs, Range Minimum	6.00%	6.00%
Estimated Marketing Costs, Range Maximum	6.00%	6.00%
Estimated Marketing Costs, Range Average	6.00%	6.00%
Estimated Property Maintenance, Range Minimum	0.00%	3.60%
Estimated Property Maintenance, Range Maximum	0.00%	3.60%
Estimated Property Maintenance, Range Average	0.00%	3.60%
Mortgage Servicing Rights | Discounted Cash Flow Valuation Technique	'	'
Unobservable Inputs	'	'
Interest Rate, Range Minimum	2.60%	2.60%
Interest Rate, Range Maximum	7.90%	7.90%
Interest Rate, Range Average	4.20%	4.30%
Loan Term (in months), Range Minimum	111	82
Loan Term (in months), Range Maximum	527	527
Loan Term (in months), Range Average	312	312
Other Real Estate Owned | Third Party Appraisal Valuation Technique	'	'
Unobservable Inputs	'	'
Discount of Market Value, Range Minimum	0.00%	0.00%
Discount of Market Value, Range Maximum	0.30%	0.00%
Discount of Market Value, Range Average	0.20%	0.00%
Estimated Marketing Costs, Range Minimum	6.00%	0.00%
Estimated Marketing Costs, Range Maximum	12.00%	6.00%
Estimated Marketing Costs, Range Average	8.40%	2.40%
Estimated Property Maintenance, Range Minimum	0.00%	0.00%
Estimated Property Maintenance, Range Maximum	0.00%	0.00%
Estimated Property Maintenance, Range Average	0.00%	0.00%

Fair_Value_Measurements_Fair_V1

Fair Value Measurements - Fair Value of Financial Instruments (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Cash and Cash Equivalents	$13,704	$15,880	$14,060	$23,853
Available-for-sale Securities	440,675	430,775	'	'
Other investments	16,486	19,782	'	'
Loans held for sale	2,014	1,509	'	'
Accrued interest receivable	3,168	3,447	'	'
Loans, net	767,767	824,881	'	'
Mortgage servicing rights	1,559	1,473	'	'
Federal Home Loan Bank advances	302,833	362,000	'	'
Deposits	798,791	813,574	'	'
Fair Value, Level 1 Inputs | Carrying Amount	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Cash and Cash Equivalents	13,704	15,880	'	'
Fair Value, Level 1 Inputs | Fair Value	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Cash and Cash Equivalents	13,704	15,880	'	'
Fair Value, Level 2 Inputs | Carrying Amount	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Available-for-sale Securities	440,675	430,775	'	'
Other investments	16,486	19,782	'	'
Loans held for sale	2,014	1,509	'	'
Accrued interest receivable	3,168	3,447	'	'
Federal Home Loan Bank advances	302,833	362,000	'	'
Federal Funds Purchased, Fair Value Disclosure	5,000	0	'	'
Accrued interest payable	320	389	'	'
Fair Value, Level 2 Inputs | Fair Value	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Available-for-sale Securities	440,675	430,775	'	'
Other investments	16,486	19,782	'	'
Loans held for sale	2,014	1,522	'	'
Accrued interest receivable	3,168	3,447	'	'
Federal Home Loan Bank advances	305,731	360,576	'	'
Federal Funds Purchased, Fair Value Disclosure	5,000	0	'	'
Accrued interest payable	320	389	'	'
Fair Value, Level 3 Inputs | Carrying Amount	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Loans, net	767,767	824,881	'	'
Mortgage servicing rights	1,559	1,473	'	'
Interest Rate Lock Commitment Assets	43	56	'	'
Deposits	798,791	813,574	'	'
Repurchase Agreements	2,000	2,000	'	'
Fair Value, Level 3 Inputs | Fair Value	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Loans, net	773,716	840,478	'	'
Mortgage servicing rights	1,559	1,473	'	'
Interest Rate Lock Commitment Assets	43	56	'	'
Deposits	801,065	824,856	'	'
Repurchase Agreements	2,015	2,049	'	'
Off-balance Sheet Financial Instruments [Member] | Carrying Amount	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Commitments, Fair Value Disclosure	0	0	'	'
Letters of Credit Outstanding, Amount	0	0	'	'
Off-balance Sheet Financial Instruments [Member] | Fair Value	'	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions	'	'	'	'
Commitments, Fair Value Disclosure	0	0	'	'
Letters of Credit Outstanding, Amount	$0	$0	'	'

Business_Combination_Details

Business Combination (Details) (USD $)	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Date of Agreement and Plan of Merger with Southside Bancshares, Inc.	28-Apr-14
Amount per share of Southside's common stock traded for each outstanding share of OmniAmerican common stock	44.59%
Cash traded for each outstanding share of OmniAmerican common stock	$13.13
Subsequent Event, Date	14-Oct-14
Subsequent Event, Description	'OmniAmerican stockholders approved the First Merger. Also on October 14, 2014, Southside shareholders approved the issuance of Southside common stock to OmniAmerican stockholders in connection with the First Merger

Commitments_and_Contingencies_1

Commitments and Contingencies (Details)	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Loss Contingency, Lawsuit Filing Date	'June 25, 2014
Loss Contingency, Name of Plaintiff	'McDougal
Loss Contingency, Name of Defendant	'OmniAmerican Bancorp, Inc.