ESB Financial (ESBF) 10-K 14 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Mar. 01, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Registrant Name	'ESB FINANCIAL CORP	'	'
Entity Central Index Key	'0000872835	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	17,737,607	'
Entity Public Float	'	'	$187.80

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash on hand and in banks	$7,272	$5,664
Interest-earning deposits	8,942	9,400
Cash and cash equivalents	16,214	15,064
Securities available for sale; cost of $1,051,311 and $1,065,447	1,063,016	1,110,776
Loans receivable, net of allowance for loan losses of $6,805 and $6,709	695,636	672,086
Accrued interest receivable	7,345	8,068
Federal Home Loan Bank (FHLB) stock	15,436	15,077
Premises and equipment, net	13,308	14,286
Real estate acquired through foreclosure, net	1,977	2,441
Real estate held for investment	7,813	9,968
Goodwill	41,599	41,599
Intangible assets	127	302
Bank owned life insurance	30,595	30,025
Securities receivable	654	1,277
Prepaid expenses and other assets	13,197	6,645
Total assets	1,906,917	1,927,614
Liabilities:	'	'
Deposits	1,222,767	1,178,057
FHLB advances	290,921	213,232
Repurchase agreements	138,000	268,000
Other borrowings	12,223	3,324
Junior subordinated notes	36,083	46,393
Advance payments by borrowers for taxes and insurance	2,659	2,619
Accounts payable for land development	1,383	2,033
Accrued expenses and other liabilities	17,038	19,156
Total liabilities	1,721,074	1,732,814
Stockholders' Equity:	'	'
Preferred stock, $.01 par value, 5,000,000 shares authorized; none issued	'	'
Common stock, $.01 par value, 30,000,000 shares authorized; 19,214,226 and 19,211,028 shares issued; 17,729,105 and 17,599,928 shares outstanding	192	163
Additional paid-in capital	104,251	103,346
Treasury stock, at cost; 1,485,121 and 1,611,100 shares	-17,540	-18,847
Unearned Employee Stock Ownership Plan (ESOP) shares	-2,121	-3,132
Retained earnings	97,605	89,065
Accumulated other comprehensive income, net	4,615	25,103
Total ESB Financial Corporation's stockholders' equity	187,002	195,698
Noncontrolling interest	-1,159	-898
Total stockholders' equity	185,843	194,800
Total liabilities and stockholders' equity	$1,906,917	$1,927,614

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Securities available for sale; cost	$1,051,311	$1,065,447
Loans receivable, allowance for loan losses	$6,805	$6,709
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	19,214,226	19,211,028
Common stock, shares outstanding	17,729,105	17,599,928
Treasury stock, shares	1,485,121	1,611,100

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Interest income:	'		'		'
Loans receivable, including fees	$31,894		$33,274		$34,805
Taxable securities available for sale	26,116		32,515		37,954
Tax-exempt securities available for sale	6,579		6,616		6,415
FHLB stock	161		51		'
Interest-earning deposits and federal funds sold	4		56		53
Total interest income	64,754		72,512		79,227
Interest expense:	'		'		'
Deposits	7,372		9,325		11,954
FHLB advances, repurchase agreements and other borrowings	12,471		17,620		20,753
Junior subordinated notes	2,134		2,455		2,433
Total interest expense	21,977		29,400		35,140
Net interest income	42,777		43,112		44,087
Provision for loan losses	500		1,100		1,130
Net interest income after provision for loan losses	42,277		42,012		42,957
Noninterest income:	'		'		'
Fees and service charges	3,417		3,375		3,524
Net gain on sale of loans	'		'		6
Increase of cash surrender value of bank owned life insurance	570		609		704
Net realized gain on securities available for sale	898		746		937
Impairment losses on investment securities	'		'		'
Total other-than-temporary impairment losses	-310		-406		-995
Portion of loss recognized in other comprehensive income before taxes	'		375		548
Net impairment losses on investment securities	-310		-31		-447
Net realized gain (loss) on derivatives	15		-550		-2,005
Income from real estate joint ventures	1,233		2,365		881
Other	949		811		706
Total noninterest income	6,772		7,325		4,306
Noninterest expense:	'		'		'
Compensation and employee benefits	17,983		17,514		16,327
Premises and equipment	2,768		2,972		2,670
Federal deposit insurance premiums	1,247		1,451		1,281
Data processing	2,381		2,396		2,312
Amortization of intangible assets	170		251		332
Advertising	663		613		612
Other	4,642		5,082		4,528
Total noninterest expense	29,854		30,279		28,062
Income before provision for income taxes	19,195		19,058		19,201
Provision for income taxes	3,341		3,236		3,380
Net income before noncontrolling interest	15,854		15,822		15,821
Less: net income attributable to noncontrolling interest	510		919		911
Net income attributable to ESB Financial Corporation	$15,344		$14,903		$14,910
Net income per share:	'		'		'
Basic	$0.88	[1]	$0.87	[1]	$0.86	[1]
Diluted	$0.87	[1]	$0.86	[1]	$0.85	[1]
Cash dividends declared per share	$0.38	[1]	$0.33	[1]	$0.32	[1]
Weighted average shares outstanding	17,386,160	[1]	17,215,229	[1]	17,326,252	[1]
Weighted average shares and share equivalents outstanding	17,575,278	[1]	17,362,875	[1]	17,466,180	[1]
[1]	Outstanding shares and per share data have been adjusted for years 2012 and 2011 to reflect a six-for five stock split of the common stock paid on May 17, 2013.

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Net Income before noncontrolling interest	$15,854	$15,822	$15,821
Securities available for sale other-than-temporarily impaired:	'	'	'
Total losses	-310	-406	-995
Reclassification adjustment for losses recognized in earnings	310	31	447
Losses recognized in comprehensive income	'	-375	-548
Income tax effect	'	131	192
Unrealized holding losses on other-than-temporarily impaired securities available for sale, net of tax	'	-244	-356
Securities available for sale not other-than-temporarily impaired:	'	'	'
(Losses) gains arising during the period before reclassification adjustments	-32,726	7,832	12,728
Income tax effect	11,454	-2,741	-4,455
Gains arising during the year, net of tax	-21,272	5,091	8,273
Reclassification adjustment for gains recognized in earnings	-898	-746	-937
Income tax effect	314	261	328
Gains recognized in earnings, net of tax	-584	-485	-609
Unrealized holding (losses) gains on securities available for sale not other-than-temporarily-impaired, net of tax	-21,856	4,606	7,664
Unrealized holding (loss) gain on securities, net	-21,856	4,362	7,308
Pension and postretirement amortization	146	155	183
Income tax effect	-51	-54	-64
Pension and Postretirement Amortization, net of tax	95	101	119
Adjustment to minimum pension liability of the SERP and DRP plan	85	-195	-226
Income tax effect	-30	68	79
Minimum pension liability, net of tax	55	-127	-147
Fair value adjustment on derivatives	1,873	-211	-2,631
Income tax effect	-655	74	921
Fair Value adjustment on derivatives, net of tax	1,218	-137	-1,710
Other comprehensive (loss) income	-20,488	4,199	5,570
Net comprehensive (loss) income before noncontrolling interest	-4,634	20,021	21,391
Less: net income attributable to the noncontrolling interest	510	919	911
Net comprehensive (loss) income attributable to ESB Financial Corporation	($5,144)	$19,102	$20,480

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Unearned ESOP Shares [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]	Noncontrolling Interest [Member]
In Thousands
Beginning balance at Dec. 31, 2010	$167,353	$138	$102,229	($20,412)	$0	$70,605	$15,334	($541)
Net income	15,821	'	'	'	'	14,910	'	911
Other comprehensive results, net	5,570	'	'	'	'	'	5,570	'
Cash dividends	-5,521	'	'	'	'	-5,521	'	'
Six for five stock split, payment in lieu of fractional shares	-8	25	-33	'	'	'	'	'
Purchase of treasury stock, at cost	-4,754	'	'	-4,754	'	'	'	'
Reissuance of treasury stock for stock option exercises	777	'	'	1,389	'	-612	'	'
Compensation expense on ESOP	1,309	'	493	'	816	'	'	'
Additional ESOP shares purchased	-504	'	-504	'	'	'	'	'
Tax effect of compensatory stock options	55	'	55	'	'	'	'	'
Compensation expense for stock options	380	'	380	'	'	'	'	'
Purchase of treasury stock for ESOP shares	'	'	'	4,151	-5,000	849	'	'
Unvested shares in MRP	136	'	47	89	'	'	'	'
Capital disbursement for noncontrolling interest	-1,539	'	'	'	'	'	'	-1,539
Ending balance at Dec. 31, 2011	179,075	163	102,667	-19,537	-4,184	80,231	20,904	-1,169
Net income	15,822	'	'	'	'	14,903	'	919
Other comprehensive results, net	4,199	'	'	'	'	'	4,199	'
Cash dividends	-5,737	'	'	'	'	-5,737	'	'
Purchase of treasury stock, at cost	-541	'	'	-541	'	'	'	'
Reissuance of treasury stock for stock option exercises	746	'	'	1,078	'	-332	'	'
Compensation expense on ESOP	1,432	'	380	'	1,052	'	'	'
Additional ESOP shares purchased	-329	'	-329	'	'	'	'	'
Tax effect of compensatory stock options	48	'	48	'	'	'	'	'
Compensation expense for stock options	563	'	563	'	'	'	'	'
Unvested shares in MRP	170	'	17	153	'	'	'	'
Capital disbursement for noncontrolling interest	-648	'	'	'	'	'	'	-648
Ending balance at Dec. 31, 2012	194,800	163	103,346	-18,847	-3,132	89,065	25,103	-898
Net income	15,854	'	'	'	'	15,344	'	510
Other comprehensive results, net	-20,488	'	'	'	'	'	-20,488	'
Cash dividends	-6,668	'	'	'	'	-6,668	'	'
Six for five stock split, payment in lieu of fractional shares	-5	29	-34	'	'	'	'	'
Purchase of treasury stock, at cost	-619	'	'	-619	'	'	'	'
Reissuance of treasury stock for stock option exercises	1,558	'	'	1,694	'	-136	'	'
Compensation expense on ESOP	1,594	'	583	'	1,011	'	'	'
Additional ESOP shares purchased	-425	'	-425	'	'	'	'	'
Tax effect of compensatory stock options	45	'	45	'	'	'	'	'
Compensation expense for stock options	739	'	739	'	'	'	'	'
Unvested shares in MRP	229	'	-3	232	'	'	'	'
Capital disbursement for noncontrolling interest	-771	'	'	'	'	'	'	-771
Ending balance at Dec. 31, 2013	$185,843	$192	$104,251	($17,540)	($2,121)	$97,605	$4,615	($1,159)

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash dividends per share	$0.38	$0.33	$0.32
Purchase of treasury stock, shares	45,152	48,379	426,696
Reissuance of treasury stock for stock option exercises, shares	171,131	127,668	146,374
Treasury Stock [Member]	'	'	'
Purchase of treasury stock, shares	45,152	48,379	426,696
Reissuance of treasury stock for stock option exercises, shares	171,131	127,668	146,374
Retained Earnings [Member]	'	'	'
Cash dividends per share	$0.38	$0.33	$0.32
Reissuance of treasury stock for stock option exercises, shares	171,131	127,668	146,374

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:	'	'	'
Net income	$15,854	$15,822	$15,821
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Depreciation for premises and equipment	962	1,018	962
Provision for loan losses	500	1,100	1,130
Amortization of premiums and accretion of discounts	3,564	3,584	2,700
Origination of loans held for sale	'	'	-325
Proceeds from sale of loans held for sale	'	'	411
Gain on sale of loans held for sale	'	'	-6
Net realized gain on securities available for sale	-898	-746	-937
Net impairment losses on investment securities	310	31	447
Net realized (gain) loss on derivatives	-15	550	2,005
Amortization of intangible assets	170	251	332
Compensation expense on ESOP, MRP and RSP	1,823	1,602	1,445
Compensation expense on stock options	739	563	380
Increase of cash surrender value of bank owned life insurance	-570	-609	-704
Decrease in accrued interest receivable	723	1,159	380
Decrease (increase) in deferred tax asset	136	-390	-1,821
Decrease in prepaid FDIC assessment	2,031	1,335	1,168
Decrease (increase) in prepaid expenses and other assets	2,560	-431	-339
(Decrease) increase in accrued expenses and other liabilities	-2,018	1,302	2,258
Gain on sale of real estate acquired through foreclosure	-58	-48	-10
Writedown of real estate held for investment	55	78	1,625
Other	219	641	954
Net cash provided by operating activities	26,087	26,812	27,876
Investing activities:	'	'	'
Loan originations	-202,822	-219,195	-181,847
Purchases of:	'	'	'
Securities available for sale	-207,113	-244,115	-302,507
FHLB stock	-8,493	'	'
Premises and equipment	-144	-433	-2,197
Principal repayments of:	'	'	'
Loans receivable	182,811	201,232	172,428
Securities available for sale	209,230	264,215	234,831
Proceeds from the sale of:	'	'	'
Securities available for sale	10,274	3,657	25,359
Real estate acquired through foreclosure	586	2,148	934
Premises and equipment	106	'	'
Proceeds from Bank Owned Life Insurance	'	1,386	'
Redemption of FHLB stock	8,134	6,179	4,841
Funding of real estate held for investment	-7,538	-9,890	-10,061
Proceeds from real estate held for investment	4,255	6,629	9,589
Net cash (used in) provided by investing activities	-10,714	11,813	-48,630
Financing activities:	'	'	'
Net increase in deposits	44,710	21,647	143,765
Proceeds from long-term borrowings	176,198	9,067	13,786
Repayments of long-term borrowings	-203,705	-112,094	-119,616
Net (decrease) increase in short-term borrowings	-15,905	27,016	-2,666
Cash disbursement to noncontrolling interest	-771	-648	-1,539
Redemption of junior subordinated notes	-10,310	'	'
Proceeds received from exercise of stock options	1,603	794	832
Dividends paid	-4,999	-7,321	-5,409
Payments to acquire treasury stock	-619	-541	-4,754
Stock purchased by ESOP	-425	-329	-504
Net cash (used in) provided by financing activities	-14,223	-62,409	23,895
Net increase (decrease) in cash and cash equivalents	1,150	-23,784	3,141
Cash and cash equivalents at beginning of period	15,064	38,848	35,707
Cash and cash equivalents at end of period	16,214	15,064	38,848
Supplemental information:	'	'	'
Interest paid	22,275	29,732	35,784
Income taxes paid	2,971	3,737	3,919
Supplemental schedule of non-cash investing and financing activities:	'	'	'
Transfers from loans receivable to real estate acquired through foreclosure	86	1,237	4,674
Originated loans for real estate held for investment	4,733	8,063	5,097
Dividends declared but not paid	$1,773	'	$1,460

Summary_of_Significant_Account

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

'

Summary of Significant Accounting Policies

'

1

Summary of Significant Accounting Policies

Principles of Consolidation

ESB Financial Corporation (the Company) is a publicly traded Pennsylvania thrift holding company. The consolidated financial statements include the accounts of the Company and its direct and indirect wholly owned subsidiaries, ESB Bank (ESB or the Bank), THF, Inc. (THF), AMSCO, Inc. (AMSCO) and ESB Financial Services, Inc. ESB is a Pennsylvania chartered Federal Deposit Insurance Corporation (FDIC) insured stock savings bank.

AMSCO is engaged in real estate development and construction of 1-4 family residential units independently or in conjunction with its joint ventures. The Bank has provided all development and construction financing. The joint ventures which are 51% owned or greater by AMSCO have been included in the consolidated financial statements and are reflected within other noninterest income or expense. The Bank’s loans to AMSCO and related interest have been eliminated in consolidation.

In addition to the elimination of the loans and interest to the joint ventures described above, all other significant intercompany transactions and balances have been eliminated in consolidation.

Basis of Presentation

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make some estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Certain amounts previously reported have been reclassified to conform to the current year financial statement presentation. The reclassification had no effect on net income.

Operating Segments

An operating segment is defined as a component of an enterprise that engages in business activities that generate revenue and incur expense, the operating results of which are reviewed by management and for which discrete financial information is available. The Company conducts business through 23 full service banking branches, one loan production office and its various other subsidiaries. Loans and deposits are primarily generated from the areas where banking branches are located. The Company derives its income predominantly from interest on loans and securities and to a lesser extent, noninterest income. The Company’s principal expenses are interest paid on deposits and borrowed funds and normal operating costs. The Company’s operations are principally in the savings and loan industry. Consistent with internal reporting, the Company’s operations are reported in one operating segment, which is community banking.

Cash Equivalents

Cash equivalents include cash on hand and in banks, interest-earning deposits with original maturities of 120 days or less and federal funds sold. The Board of Governors of the Federal Reserve imposes certain reserve requirements on all depository institutions. These reserves are maintained in the form of vault cash or as a noninterest bearing balance with the Federal Reserve Bank. Required reserves at the Federal Reserve Bank averaged $589,000 and $1.0 million during the year 2013 and 2012, respectively.

Securities Available for Sale and Held for Maturity

Securities include investments primarily in bonds, notes and to a lesser extent equity securities and are classified as either available for sale or held to maturity at the time of purchase based on management’s intent. Such intent includes consideration of the interest rate environment, prepayment risk, credit risk, maturity and repricing characteristics, liquidity considerations, investment and asset/liability management policies and other pertinent factors. Unrealized holding gains and losses, net of applicable income taxes, on available for sale securities are reported as accumulated other comprehensive income (AOCI) until realized. Gains and losses on the sale of securities are determined using the specific identification method and are included in operations in the period sold.

Management monitors all of the Company’s securities for other than temporary impairment (OTTI) on a quarterly basis and determines whether any impairment should be recorded. For a security to be considered OTTI, its characteristics would have to consist of an accumulation of these factors:

•

Fair value is significantly below cost

•

Decline in fair value is attributable to specific adverse conditions affecting a particular investment, specific conditions in an industry or geographic area

•

Management does not possess both the intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value

•

The decline in fair value has existed for an extended period of time

•

Debt security has been downgraded by a rating agency

•

Rating differences

•

Financial condition of the issuer has deteriorated and the issuer has reduced or eliminated scheduled dividends or interest payments

•

SEC filings – disclosures that would indicate an inability by the issuer to satisfy their obligations

•

Audits – the Company will review the issuer’s audits to determine if they have received going concern audit opinions

•

Other debt of the issuers – the Company will review the market prices of other debt of the issuer to determine if the market loss of an issue is related to credit or interest rate risk

Management will more closely evaluate the securities that have unrealized losses of 15% or more. If management determines that the declines in value of the security are not temporary, or if management does not have the ability to hold the security until maturity, which is the case with equity securities, then management will record impairment on the security. For equity securities, typically the amount of impairment is the difference between the security’s book value and current fair value determined by independent market pricing. For debt securities evaluated for impairment, management will determine what portion of the unrealized valuation loss is attributed to projected or known loss of principal, and what portion is attributed to market pricing not reflective of the true value of the security, based on current cash flow analysis. Management will generally record impairment equivalent to the projected or known loss of principal, known as the credit loss. The other portion of the fair value loss is attributed to market factors and it is management’s opinion that these fair value losses are temporary and not permanent. All impairment is recorded as a loss on securities and is included in the Company’s consolidated statements of operations.

Yields and carrying values for certain mortgage-backed securities are subject to normal interest rate and prepayment risks. Premiums and discounts on securities are recognized in interest income using the interest method over the period to maturity.

Loans Receivable

Loans receivable, for which management has the intent and the Company has the ability to hold for the foreseeable future or until maturity or payoff, are reported at their outstanding unpaid principal balances reduced by any charge-offs and net of any deferred fees or costs on loans originated, unamortized premiums or discounts on loans purchased and the allowance for loan losses.

Interest income on loans is accrued and credited to operations as earned. Interest income is not accrued for loans delinquent 90 days or greater. Interest on impaired loans is discontinued when, in management’s opinion, the borrower may be unable to meet contractual payments. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest receipts on nonaccrual and impaired loans are recognized as interest revenue or applied to principal when management believes the ultimate collectibility of principal is in doubt.

The Company maintains records of the full amount of interest that is owed by the borrowers. A non-accrual loan will generally be placed back on accrual status only when the delinquency is less than 90 days.

Discounts and premiums on purchased loans are recognized in interest income using the interest method over the remaining period to contractual maturity, adjusted for prepayments. Loan origination fees and certain direct origination costs are capitalized and recognized as an adjustment to the yield of the related loan over the loan’s period to maturity. Loans originated and intended for sale are carried at the lower of cost or fair value in the aggregate.

Impaired loans are commercial, multi-family, residential real estate construction and commercial real estate loans for which it is probable the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. The Company individually evaluates such loans for impairment and does not aggregate loans by major risk classifications. The definition of impaired loans is not the same as the definition of nonaccrual loans, although the two categories overlap. The Company may choose to place a loan on nonaccrual status due to payment delinquency or uncertain collectibility, while not classifying the loan as impaired. Factors considered by management in determining impairment include payment status and collateral value. The amount of impairment for these types of impaired loans is determined by the difference between the present value of the expected cash flows related to the loan, using current interest rates and its recorded value, or, as a practical expedient in the case of collateralized loans, the difference between the fair value of the collateral and the recorded amount of the loans. When the loan balance becomes collateral dependent, impairment is measured based on the fair value of the collateral.

Mortgage loans on one-to four family properties and all consumer loans are large groups of smaller balance homogeneous loans and are measured for impairment collectively. Loans that experience insignificant payment delays, which are defined as less than 90 days, generally are not classified as impaired. Management determines the significance of payment delays on a case-by-case basis, taking into consideration all circumstances surrounding the loan and the borrower including the length of the delay, the borrower’s prior payment record and the amount of shortfall in relation to the principal and interest owed.

Allowance for loan losses

Management establishes the allowance for loan losses based upon its evaluation of the pertinent factors underlying the types and quality of loans in the portfolio. Commercial loans and commercial real estate loans are reviewed on a regular basis with a focus on larger loans along with loans which have experienced past payment or financial deficiencies. Larger commercial loans, multi-family, residential real estate construction and commercial real estate loans which are 60 days or more past due are selected for impairment testing. These loans are analyzed to determine if they are “impaired”, which means that it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. All loans that are delinquent 90 days and are placed on nonaccrual status are classified on an individual basis. Residential loans 60 days past due, which are still accruing interest are classified as substandard as per the Company’s asset classification policy. The remaining loans are evaluated and classified as groups of loans with similar risk characteristics. The Company allocates allowances based on the factors described below, which conform to the Company’s asset classification policy. In reviewing risk within the Bank’s loan portfolio, management has determined there to be several different risk categories within the loan portfolio. The allowance for loan losses consists of amounts applicable to: (i) the commercial loan portfolio; (ii) the commercial real estate portfolio; (iii) the consumer loan portfolio; (iv) the residential real estate portfolio. Factors considered in this process included general loan terms, collateral and availability of historical data to support the analysis. Historical loss percentages for each risk category are calculated and used as the basis for calculating allowance allocations. Certain qualitative factors are then added to the historical loss percentages to get the adjusted factor to be applied to non classified loans. The following qualitative factors are analyzed:

•

Levels of and trends in delinquencies and nonaccruals

•

Trends in volume and terms

•

Changes in lending policies and procedures

•

Volatility of losses within each risk category

•

Loans and lending staff acquired through acquisition

•

Economic trends

•

Concentrations of credit

•

Experience depth and ability of management

The Company also maintains an unallocated allowance to account for any factors or conditions that may cause a potential loss but are not specifically addressed in the process described above. The Company analyzes its loan portfolio each quarter to determine the appropriateness of its allowance for loan losses.

The allowance for loan losses is maintained at a level believed to be adequate by management to absorb probable losses inherent in the portfolio and is based on the size and current risk characteristics of the loan portfolio, an assessment of individual problem loans and actual loss experience, current economic events in specific industries and other pertinent factors such as regulatory guidance and general economic conditions. Determination of the allowance is inherently subjective as it requires significant estimates, including the amounts and timing of expected future cash flows on impaired loans, estimated losses on pools of homogeneous loans based on historical loss experience and consideration of current economic trends, all of which may be susceptible to significant change. Loan losses are charged off against the allowance, while recoveries of amounts previously charged off are credited to the allowance. A provision for loan losses is charged to operations based on management’s periodic evaluation of the factors previously mentioned, as well as other pertinent factors. Evaluations are conducted quarterly, during which loans may be charged off upon reaching various stages of delinquency and depending upon the loan type.

Loan Charge-off Policies

Consumer loans are generally fully or partially charged down to the fair value of collateral securing the asset when the loan is 180 days past due for open-end loans or 120 days past due for closed-end loans unless the loan is well secured and in the process of collection. All other loans are generally charged down to the fair value when the loan is 90 days past due.

Troubled Debt Restructurings

In situations where, for economic or legal reasons related to a borrower’s financial difficulties, management may grant a concession for other than an insignificant period of time to the borrower that would not otherwise be considered, the related loan is classified as a TDR. Management strives to identify borrowers in financial difficulty early and work with them to modify to more affordable terms before their loan reaches nonaccrual status. These modified terms may include rate reductions, principal forgiveness, payment forbearance and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of the collateral. In cases where borrowers are granted new terms that provide for a reduction of either interest or principal, management measures any impairment on the restructuring as noted above for impaired loans. In addition to the allowance for the pooled portfolios, management has developed a separate allowance for loans that are identified as impaired through a TDR. These loans are excluded from pooled loss forecasts and a separate reserve is provided under the accounting guidance for loan impairment. Consumer loans whose terms have been modified in a TDR are also individually analyzed for estimated impairment.

Real Estate Acquired Through Foreclosure

Real estate properties acquired through foreclosure are initially recorded at the lower of cost or fair value at the date of foreclosure, establishing a new cost basis. After foreclosure, management periodically performs valuations and the real estate is carried at the lower of cost or fair value less estimated costs to sell. Revenue and expenses from operations of the properties, gains and losses on sales and additions to the valuation allowance are included in operating results.

Federal Home Loan Bank Stock

The Bank is a member of the FHLB of Pittsburgh and as such, is required to maintain a minimum investment in FHLB stock that varies with the level of advances outstanding with the FHLB. The stock is bought from and sold to the FHLB based upon its $100 par value. The stock does not have a readily determinable fair value and as such is classified as restricted stock, carried at cost and evaluated for impairment when necessary. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) the significance of the decline in net assets of the FHLB as compared to the capital stock amount and the length of time this situation has persisted (b) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance (c) the impact of legislative and regulatory changes on the customer base of the FHLB and (d) the liquidity position of the FHLB. There was no impairment of the FHLB stock at December 31, 2013 or 2012.

Premises and Equipment

Land is carried at cost. Premises, furniture and equipment and leasehold improvements are carried at cost less accumulated depreciation or amortization. Depreciation is calculated on a straight-line basis over the estimated useful lives of the related assets, which are twenty-five to fifty years for buildings and three to ten years for furniture and equipment. Amortization of leasehold improvements is computed using the straight-line method over the term of the related lease.

Goodwill and Intangible Assets

Goodwill totaled $41.6 million at December 31, 2013 and 2012, respectively. The Company evaluates goodwill for impairment. This impairment assessment is performed at least annually by assessing various qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The Company performed this assessment as of October 31, 2013 and concluded that the recorded value of goodwill was not impaired. Core deposit intangible was $118,000 and $288,000 at December 31, 2013 and 2012, respectively. The core deposit intangible asset is amortized on a sum of the year’s digit basis over the estimated useful life, generally up to ten years. Amortization of finite lived assets is expected to total $110,000 and $8,000 for the years 2014 and 2015, respectively.

Mortgage Servicing Assets

At December 31, 2013, the remaining balance and fair value of the servicing asset was $9,000, which is recorded in intangible assets. Servicing assets are amortized in proportion to and over the period of, estimated net servicing revenues. Impairment of servicing assets is based on fair value of those assets, estimated using discounted cash flows and prepayment assumptions for the market area of the servicing portfolio. For purposes of measuring impairment, the servicing asset is stratified based on interest rate. The amount of impairment recognized is the amount by which the capitalized servicing asset for a stratum exceeds the fair value of that stratum. During 2013 the Company recovered a portion of the impairment valuation of approximately $3,000. The remaining impairment valuation at December 31, 2013, 2012 and 2011 was $12,000, $15,000 and $24,000, respectively. The amortization taken on the servicing asset for the year ended December 31, 2013, 2012 and 2011 was $8,000, $10,000 and $14,000, respectively. The Company had total loans serviced for others of $4.3 million, $5.8 million and $10.2 million at December 31, 2013, 2012 and 2011, respectively.

Advertising Costs

Advertising costs are expensed as the costs are incurred. Advertising expenses amounted to $663,000, $613,000 and $612,000 for 2013, 2012 and 2011, respectively.

Income Taxes

Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.

Bank-Owned Life Insurance (BOLI)

The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increases in the costs of various fringe benefit plans including healthcare. The cash surrender value of these policies is included as an asset on the consolidated statements of financial condition and any increases in cash surrender value are recorded as noninterest income on the consolidated statements of operations. In the event of the death of an insured individual under these policies, the Company would receive a death benefit.

Financial Instruments

As part of its overall interest rate risk management activities, the Company utilizes derivative instruments to manage its exposure to various types of interest rate risk. Interest rate swaps and interest rate caps are the primary instruments the Company uses for interest rate risk management. Derivative instruments are recorded at fair value as either part of prepaid expenses and other assets or accrued expenses and other liabilities on the consolidated statements of financial condition. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.

The Company formally documents the relationship between the hedging instruments and hedged items, as well as the risk management objective and strategy, before undertaking an accounting hedge. To qualify for hedge accounting, the derivatives and related hedged items must be designated as a hedge at inception of the hedge relationship. For accounting hedge relationships, we formally assess, both at the inception of the hedge and on an ongoing basis, if the derivatives are highly effective in offsetting designated changes in the fair value or cash flows of the hedged item. If it is determined that the derivative instrument is not highly effective, hedge accounting is discontinued.

For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in earnings. To the extent the change in fair value of the derivative does not offset the change in fair value of the hedged item, the difference or ineffectiveness is reflected in earnings in the same financial statement category as the hedged item.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in AOCI and subsequently reclassified to earnings when the hedged transaction affects earnings and the ineffective portion of changes in the fair value of the derivative is recognized directly in earnings. The Company assesses the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows of the derivative hedging instrument with the changes in fair value or cash flows of the designated hedged item or transaction. For derivatives not designated as hedges, changes in fair value are recognized in earnings.

At December 31, 2013, there were 22 interest rate cap contracts outstanding with notional amounts totaling $230.0 million. These derivative instruments are not hedged and therefore adjustments to fair value are recorded in current earnings.

During 2009, the Company entered into two interest rate swap contracts to manage its exposure to interest rate risk. These interest rate swap transactions involved the exchange of the Company’s interest payment on $35.0 million in junior subordinated notes which became floating rate notes in 2011 for a fixed rate interest payment without the exchange of the underlying principal amount. Entering into interest rate derivatives potentially exposes the Company to the risk of counterparties’ failure to fulfill their legal obligations including, but not limited to, potential amounts due or payable under each derivative contract. Notional principal amounts are often used to express the volume of these transactions, but the amounts potentially subject to credit risk are much smaller. Management utilizes the change in variable cash flows method to measure hedge ineffectiveness. To the extent that the cumulative change in anticipated cash flows from the hedging derivative offsets from 80% to 125% of the cumulative change in anticipated cash flows from the hedged exposure, the hedged is deemed effective. As of December 31, 2013, the interest rate swaps were deemed to be effective, therefore no amounts were charged to current earnings. The Company also does not expect to reclassify any hedge related amounts from AOCI to earnings over the next twelve months.

The fixed interest rate swap contracts outstanding at December 31, 2013 are being utilized to hedge $35.0 million in floating rate junior subordinated notes. The interest rate swaps are carried at fair value. Below is a summary of the interest rate swap contracts and the terms at December 31, 2013:

(Dollars in thousands)

Notional

Effective

Pay

Receive

Maturity

Unrealized

Amount

Date

Rate

Rate (*)

Date

Loss

Cash Flow Hedge

$

20,000

2/10/11

4.18

%

0.28

%

2/10/18

$

2,306

Cash Flow Hedge

15,000

2/10/11

3.91

%

0.28

%

2/10/18

1,563

$

35,000

$

3,869

* Variable receive rate based upon contract rates in effect at December 31, 2013

Transfers of Financial Assets

Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of the right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.

Stock-Based Compensation

The Company accounts for stock compensation based on the grant-date fair value of all share-based payment awards that are expected to vest, including employee share options to be recognized as employee compensation expense over the requisite service period.

During the years ended December 31, 2013, 2012 and 2011, the Company recorded $747,000, $575,000, and $377,000, respectively, in compensation expense and tax benefits of $296,000, $73,000 and $1,000, respectively, related to our share-based compensation awards. As of December 31, 2013, there was approximately $98,000 of unrecognized compensation cost, related to unvested share-based compensation awards granted in 2010, that is expected to be recognized over the next year. There was approximately $163,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2011, that is expected to be recognized over the next two years. There was approximately $111,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2012, that is expected to be recognized over the next year and $243,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2012 that is expected to be recognized over the next three years. Finally, there was approximately $296,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2013 that is expected to be recognized over the next two years and $420,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2013 that is expected to be recognized over the next four years. The Company has recorded $45,000, $48,000 and $55,000 in excess tax benefits which have been classified as financing cash inflows for the years ended December 31, 2013, 2012 and 2011, respectively, in the Consolidated Statements of Cash Flows.

For purposes of computing results, the Company estimated the fair values of stock options using the Black-Scholes option-pricing model. The model requires the use of subjective assumptions that can materially affect fair value estimates. The fair value of each option is amortized into compensation expense on a straight line basis between the grant date for the option and each vesting date. The fair value of each stock option granted was estimated using the following weighted-average assumptions:

2013

2012

2011

Assumptions

Volatility

39.45%

39.70%

39.52%

Interest Rates

1.62%

1.24%

1.58%

Dividend Yields

2.99%

3.17%

3.03%

Weighted Average Life ( in years)

5.5

7

7

The weighted average fair value of each stock option granted for 2013, 2012, and 2011 was $3.86, $3.04, and $3.28 , respectively. The total intrinsic value of options exercised during the years ended December 31, 2013, 2012 and 2011, was $361,000, $229,000 and $287,000, respectively. The total intrinsic value of in-the-money stock options was $3.7 million, $3.1 million, and $2.5 million at the year ended December 31, 2013, 2012 and 2011 respectively. The total intrinsic value of the exercisable stock options was $2.3 million, $2.0 million and $1.6 million at the year ended December 31, 2013, 2012 and 2011, respectively.

Net Income Per Share

The following table summarizes the Company’s net income per share for the years ended December 31, 2013, 2012, and 2011:

(Amounts in thousands, except per share data)

2013

2012

2011

Net income

$

15,344

$

14,903

$

14,910

Weighted-average common shares outstanding

17,386

17,215

17,326

Basic earnings per share

$

0.88

$

0.87

$

0.86

Weighted-average common shares outstanding

17,386

17,215

17,326

Common stock equivalents due to effect of stock options

189

148

139

Total weighted-average common shares and equivalents

17,575

17,363

17,465

Diluted earnings per share

$

0.87

$

0.86

$

0.85

The unallocated shares controlled by the ESOP of 200,569, 296,096 and 395,587 at December 31, 2013, 2012 and 2011, respectively, are not considered in the weighted average shares outstanding until the shares are committed for allocation to an employee’s individual account. Options to purchase 32,526 shares at $10.35 per diluted share expiring November 2020, 51,995 shares at $11.00 per diluted share expiring November 2021, 122,068 shares at $10.50 per diluted share expiring November 2022 and 191,192 shares at $13.36 per diluted share expiring November 2023 were outstanding at December 31, 2013, but were not included in the computation of diluted earnings per share because the options’ exercise price combined with its fair value was greater than the average market price of the common shares. All of the outstanding options were included in the computation of diluted earnings per share for 2012 and 2011 because the options’ exercise price combined with its fair value was less than the average market price of the common shares.

Reclassifications

Certain amounts in the 2012 financial statements have been reclassified to conform to the 2013 presentation format. These reclassifications had no effect on stockholders’ equity or net income.

Effect of Recent Accounting and Regulatory Pronouncements

In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. The new requirements will take effect for public companies in fiscal years, and interim periods within those years, beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure surrounding reclassification items out of accumulated other comprehensive income.

In February 2013, the FASB issued ASU 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In April 2013, the FASB issued ASU 2013-07, Presentation of Financial Statements (Topic 205): Liquidation Basis of Accounting. The amendments in this Update are being issued to clarify when an entity should apply the liquidation basis of accounting. In addition, the guidance provides principles for the recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. The amendments require an entity to prepare its financial statements using the liquidation basis of accounting when liquidation is imminent. Liquidation is imminent when the likelihood is remote that the entity will return from liquidation and either (a) a plan for liquidation is approved by the person or persons with the authority to make such a plan effective and the likelihood is remote that the execution of the plan will be blocked by other parties or (b) a plan for liquidation is being imposed by other forces (for example, involuntary bankruptcy). If a plan for liquidation was specified in the entity’s governing documents from the entity’s inception (for example, limited-life entities), the entity should apply the liquidation basis of accounting only if the approved plan for liquidation differs from the plan for liquidation that was specified at the entity’s inception. The amendments are effective for entities that determine liquidation is imminent during annual reporting periods beginning after December 15, 2013, and interim reporting periods therein. Entities should apply the requirements prospectively from the day that liquidation becomes imminent. Early adoption is permitted. Entities that use the liquidation basis of accounting as of the effective date in accordance with other Topics (for example, terminating employee benefit plans) are not required to apply the amendments. Instead, those entities should continue to apply the guidance in those other Topics until they have completed liquidation. This ASU is not expected to have a significant impact on the Company’s financial statements.

In June 2013, the FASB issued ASU 2013-08, Financial Services – Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements. The amendments in this Update affect the scope, measurement, and disclosure requirements for investment companies under U.S. GAAP. The amendments do all of the following: 1. Change the approach to the investment company assessment in Topic 946, clarify the characteristics of an investment company, and provide comprehensive guidance for assessing whether an entity is an investment Company. 2. Require an investment company to measure noncontrolling ownership interests in other investment companies at fair value rather than using the equity method of accounting. 3. Require the following additional disclosures: (a) the fact that the entity is an investment company and is applying the guidance in Topic 946, (b) information about changes, if any, in an entity’s status as an investment company, and (c) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The amendments in this Update are effective for an entity’s interim and annual reporting periods in fiscal years that begin after December 15, 2013. Earlier application is prohibited. This ASU is not expected to have a significant impact on the Company’s financial statements.

In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. An unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In January 2014, FASB issued ASU 2014-01, Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this Update permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments in this Update should be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this Update are effective for public business entities for annual periods and interim reporting periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In January 2014, the FASB issued ASU 2014-04, Receivables – Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments in this Update clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this Update are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. An entity can elect to adopt the amendments in this Update using either a modified retrospective transition method or a prospective transition method. This ASU is not expected to have a significant impact on the Company’s financial statements.

Available_for_Sale_Securities

Available for Sale Securities	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Available for Sale Securities	'
	2	Available for Sale Securities
	The following table summarizes the Company’s available for sale securities:
	(Dollar amounts in thousands)	Amortized			Unrealized		Unrealized		Fair value
		cost			gains		losses
	December 31, 2013:
	Trust preferred securities	$	45,589		$	225	$	-6,908	$	38,906
	Municipal securities		178,579			5,310		-4,149		179,740
	Equity securities		953			968		-		1,921
	Corporate bonds		201,268			5,313		-361		206,220
	Mortgage-backed securities
	U.S. sponsored entities		623,134			18,397		-7,107		634,424
	Private label		1,788			21		-4		1,805
	Subtotal mortgage-backed securities		624,922			18,418		-7,111		636,229
	Total securities	$	1,051,311		$	30,234	$	-18,529	$	1,063,016
	December 31, 2012:
	Trust preferred securities	$	45,894		$	367	$	-8,234	$	38,027
	Municipal securities		177,414			13,717		-244		190,887
	Equity securities		1,142			676		-		1,818
	Corporate bonds		219,700			7,186		-1,091		225,795
	Mortgage-backed securities
	U.S. sponsored entities		617,158			33,021		-246		649,933
	Private label		4,139			177		-		4,316
	Subtotal mortgage-backed securities		621,297			33,198		-246		654,249
	Total securities	$	1,065,447		$	55,144	$	-9,815	$	1,110,776
	The private-label mortgage backed securities totaled $1.8 million and $4.3 million as of December 31, 2013 and December 31, 2012, respectively, and are secured by residential real estate.
	The proceeds from the sale of securities as of December 31, 2013 were $10.3 million. Gross realized gains on sales of securities available for sale were $898,000 in 2013. The Company recorded impairment charges of approximately $310,000 on a $2.5 million collateralized debt obligation (CDO) in 2013. There was no non-credit related OTTI on this security.
	The proceeds from the sale of securities as of December 31, 2012 were $3.7 million. Gross realized gains on sales of securities available for sale were $746,000 in 2012. The Company recorded impairment charges of approximately $5,000 on a $2.5 million collateralized debt obligation (CDO) and approximately $26,000 on one of its equity investments in a bank that had experienced a decline in its market value for the several quarters during 2012. There was non-credit related OTTI on these securities recognized in OCI during the period of approximately $375,000.
	The proceeds from the sale of securities as of December 31, 2011 were $25.4 million. Gross realized gains on sales of securities available for sale were $937,000 in 2011. The Company recorded impairment charges of approximately $78,000 on a $2.5 million CDO, $52,000 on a private – label mortgage backed security and approximately $317,000 on five of its equity investments in various banks that had experienced a decline in their fair value for the several quarters during 2011. There was non-credit related OTTI on these securities recognized in AOCI during the period of approximately $548,000.
	Included in the $38.9 million of trust preferred securities was one pooled trust preferred security with a par value of $2.5 million that was not investment-grade rated. The Company took an impairment charge of approximately $310,000 on this $2.5 million collateralized debt obligation (CDO) during 2013. The Company had an independent third party analyze this bond at December 31, 2013. The current Volcker Rule passed on December 10, 2013 prohibits U.S. Banks from investing in certain “covered funds.” If a “covered fund” is owned it must be divested by July 21, 2015. On January 14, 2014, the Federal banking regulatory agencies released a listing of CDO’s that qualify for an exemption under this rule. The Company determined after a review of this list that its MM Community Funding investment is exempted from the Volcker Rule. Even though the MM Community investment became exempt from the Volcker Rule the Company has determined that its intention is to sell this investment in the near future and due to this, the Company has written this bond down to the fair value at December 31, 2013 as calculated by the third party.
	Because of the subprime crisis current markets for variable rate corporate trust preferred bonds are illiquid. In order to determine prices of these securities the Company utilizes a discounted cash flow method, mentioned above. This method is described more fully in footnote 12, Fair Value.
	The following is a summary of the amounts recognized in earnings related to credit losses on securities which the Company has recorded other-than-temporary impairment charges through earnings and other comprehensive income:
	(Dollars in thousands)
			Totals
	January 1, 2011	$	1,022
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		130
	December 31, 2011		1,152
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		5
	December 31, 2012		1,157
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		310
	December 31, 2013	$	1,467
	At December 31, 2013 and 2012, the Bank did not have any corporate bonds whose book value exceeded 10% of equity.
	The following table shows the Company’s investments’ gross unrealized losses and fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2013 and 2012:
	As of December 31, 2013
	(Dollar amounts in thousands)	Less than 12 Months							12 Months or more						Total
		# of			Fair Value		Unrealized		# of		Fair		Unrealized		# of		Fair Value		Unrealized
		Securities					losses		Securities		Value		losses		Securities				losses
	Trust preferred securities		-		$	-	$	-		8	$	37,016	$	6,908		8	$	37,016	$	6,908
	Municipal securities		44			37,243		3,129		6		5,518		1,020		50		42,761		4,149
	Corporate bonds		6			20,869		109		3		11,474		252		9		32,343		361
	Mortgage-backed securities
	U.S. sponsored entities		69			229,223		6,363		4		16,878		744		73		246,101		7,107
	Private label		1			502		4		-		-		-		1		502		4
	Subtotal mortgage-backed securities		70			229,725		6,367		4		16,878		744		74		246,603		7,111
	Total		120		$	287,837	$	9,605		21	$	70,886	$	8,924		141	$	358,723	$	18,529
	As of December 31, 2012
	(Dollar amounts in thousands)	Less than 12 Months							12 Months or more						Total
		# of			Fair		Unrealized		# of		Fair		Unrealized		# of		Fair Value		Unrealized
		Securities			Value		losses		Securities		Value		losses		Securities				losses
	Trust preferred securities		-		$	-	$	-		9	$	36,179	$	8,234		9	$	36,179	$	8,234
	Municipal securities		5			4,179		58		2		3,059		186		7		7,238		244
Corporate bonds		5			15,604		110		5		20,020		981		10		35,624		1,091
Mortgage-backed securities
U.S. sponsored entities		8			28,246		246		-		-		-		8		28,246		246
Total		18		$	48,029	$	414		16	$	59,258	$	9,401		34	$	107,287	$	9,815
The Company primarily invests in mortgage-backed securities, variable and fixed rate corporate bonds, municipal bonds, trust preferred securities, government bonds and to a lesser extent equity securities. The policy of the Company is to recognize an OTTI on equity securities where the fair value has been significantly below cost for three consecutive quarters. Declines in the fair value of the corporate bonds that can be attributed to specific adverse conditions affecting the credit quality of the investment would be recorded as OTTI losses and charged to earnings. In order to determine if a decline in fair value is other than temporary, the Company reviews corporate ratings of the investment, analyst reports and SEC filings of the issuers. For fixed maturity investments with unrealized losses due to interest rates where the Company expects to recover the entire amortized cost basis of the security, declines in value below cost are not assumed to be other than temporary. The Company reviews its position quarterly and has asserted that at December 31, 2013, the declines outlined in the above table represent temporary declines due to changes in interest rates and are not reflections of impairment in the credit quality of the securities. Additionally, the Company does not intend to sell the investment and it is not more likely than not that the Company will be required to sell the investment before recovery of its amortized cost basis.
The Company reviews investment debt securities on an ongoing basis for the presence of OTTI with formal reviews performed quarterly. Credit–related OTTI losses on individual securities were recognized during 2013 in earnings while noncredit-related OTTI on securities not expected to be sold is recognized in AOCI. The credit-related OTTI recognized during 2013, 2012 and 2011 was $310,000, $31,000 and $447,000, respectively and was related to securities having a book value of $192,000 at December 31, 2013, $608,000 at December 31, 2012 and $2.1 million at December 31, 2011. The noncredit-related OTTI was $0, $375,000 and $548,000 for 2013, 2012 and 2011, respectively.
The following table summarizes scheduled maturities of the Company’s securities as of December 31, 2013, excluding equity securities which have no maturity dates:
(Dollar amounts in thousands)	Available for sale
	Weighted			Amortized		Fair value
	Average Yield			cost
Due in one year or less		2.79	%	$	41,074	$	41,497
Due from one year to five years		2.97	%		163,785		169,767
Due from five to ten years		3.37	%		106,115		107,917
Due after ten years		3.14	%		739,384		741,914
		3.12	%	$	1,050,358	$	1,061,095
For purposes of the maturity table, mortgage-backed securities, which are not due at a single maturity date, have been allocated over maturity groupings based on weighted-average contractual maturities of underlying collateral. The mortgage-backed securities may mature earlier than their weighted-average contractual maturities because of principal prepayments.
Securities, with carrying values of $309.9 million and $229.0 million as of December 31, 2013 and 2012, respectively, were pledged to secure public deposits and for other purposes required or permitted by law.

Loans_Receivable

Loans Receivable	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Loans Receivable	'
	3		Loans Receivable
	The following table summarizes the Company’s loans receivable as of December 31:
	(Dollar amounts in thousands)		2013					2012
	Mortgage loans:
	Residential real estate
	Single family		$	341,775				$	326,005
	Construction			44,327					46,418
	Multi family			37,857					33,472
	Total residential real estate			423,959					405,895
	Commercial real estate
	Commercial			77,366					81,077
	Construction			25,971					15,878
	Total commercial real estate			103,337					96,955
	Subtotal mortgage loans			527,296					502,850
	Other loans:
	Consumer loans
	Home equity loans			82,987					80,418
	Dealer auto and RV loans			46,502					46,571
	Other loans			6,653					7,896
	Total consumer loans			136,142					134,885
	Commercial business			52,801					54,445
	Subtotal other loans			188,943					189,330
	Total loans receivable			716,239					692,180
	Less:
	Allowance for loan losses			6,805					6,709
	Deferred loan fees and net discounts			(2,007	)				(1,862	)
	Loans in process			15,805					15,247
	Net loans receivable		$	695,636				$	672,086
	The Company conducts its business through 23 offices in Allegheny, Beaver, Butler and Lawrence counties in Pennsylvania which also serves as its primary lending area. Management does not believe it has significant concentrations of credit risk to any one group of borrowers given its underwriting and collateral requirements.
	Management has an established methodology to determine the adequacy of the allowance for loan losses that assesses the risks and losses inherent in the loan portfolio. For purposes of determining the allowance for loan losses, The Company has segmented certain loans in the portfolio by product type. Loans are segmented into the following pools: commercial business loans, commercial real estate loans, residential real estate loans and consumer loans. The Company sub-segments residential real estate loans into the following three classes: single family, construction and multi-family. Commercial real estate is sub-segmented into commercial and construction classes. The Company also sub-segments the consumer loan portfolio into the following three classes: home equity, dealer automobile and recreational vehicle (RV) and other consumer loans. Historical loss percentages for each risk category are calculated and used as the basis for calculating allowance allocations. These historical loss percentages are calculated over a three year period for all portfolio segments. Certain qualitative factors are then added to the historical loss percentages to get the adjusted factor to be applied to non classified loans. The following qualitative factors are analyzed for each portfolio segment:
		•		Levels of and trends in delinquencies and nonaccruals
		•		Trends in volume and terms
		•		Changes in lending policies and procedures
		•		Volatility of losses within each risk category
		•		Loans and Lending staff acquired through acquisition
		•		Economic trends
		•		Concentrations of credit
		•		Experience depth and ability of management
	These qualitative factors are reviewed each quarter and adjusted based upon relevant changes within the portfolio. During 2013, the qualitative factors for changes in levels of and trends in delinquencies were increased for commercial and dealer loans. The changes in delinquencies related to the loans collectively evaluated for impairment resulted in a decrease to the related factors for commercial mortgage loans. Changes in portfolio volumes in 2013 resulted in an increase to the related factors for residential mortgages, commercial mortgages including multi-family mortgages, commercial loans and consumer loans. During 2013, the qualitative factors for volatility of portfolio losses were unchanged for all loans based upon the calculated volatility. The changes to economic trends for were also unchanged for all loans based upon the economic factors reviewed.
	In terms of the Company’s loan portfolio, the commercial and industrial loans and commercial real estate loans are deemed to have more risk than the consumer real estate loans and other consumer loans in the portfolio. The commercial loans not secured by real estate are highly dependent on financial condition and are more dependent on economic conditions. The commercial loans secured by real estate are also dependent on economic conditions but generally have stronger forms of collateral. More recently, commercial real estate has been negatively impacted by devaluation so these commercial loans carry a higher qualitative factor for changes in the value of collateral. The commercial loans and commercial real estate loans have historically been responsible for the majority of the Company’s delinquencies, non-accrual loans, and charge-offs so both of these categories carry higher qualitative factors than consumer real estate loans and other consumer loans. The Company has historically experienced very low levels of consumer real estate and consumer loan charge-offs so these qualitative factors are set lower than the commercial real estate and commercial and industrial loans.
	Loans by Segment
	The total allowance reflects management’s estimate of loan losses inherent in the loan portfolio at the Statement of Financial Condition date. The Company considers the allowance for loan losses of $6.8 million adequate to cover loan losses inherent in the loan portfolio, at December 31, 2013. The following tables present by portfolio segment, the changes in the allowance for loan losses and the recorded investment in loans for the year ended December 31, 2013, 2012 and 2011:
	As of December 31, 2013
	(Dollar amounts in thousands)
			Commercial			Commercial				Consumer			Residential			Unallocated			Total
						Real Estate
	Allowance for loan losses:
	Beginning balance		$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
	Charge-offs			19			7				477			60			4			567
	Recoveries			-			-				138			25			-			163
	Provision			54			197				108			266			(125	)		500
	Reallocations			(62	)		(542	)			254			224			126			-
	Ending Balance		$	523		$	1,723			$	1,054		$	2,996		$	509		$	6,805
	As of December 31, 2012
	(Dollar amounts in thousands)
			Commercial			Commercial				Consumer			Residential			Unallocated			Total
						Real Estate
	Allowance for loan losses:
	Beginning balance		$	384		$	2,442			$	1,045		$	2,115		$	551		$	6,537
	Charge-offs			32			163				562			289			-			1,046
	Recoveries			-			-				101			17			-			118
	Provision			21			85				40			954			-			1,100
	Reallocations			177			(289	)			407			(256	)		(39	)		-
Ending Balance		$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
As of December 31, 2011
(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
Allowance for loan losses:
Beginning balance		$	784		$	1,831			$	1,125		$	2,573		$	234		$	6,547
Charge-offs			187			-				478			709			-			1,374
Recoveries			25			-				160			49			-			234
Provision			-			125				275			655			75			1,130
Reallocations			(238	)		486				(37	)		(453	)		242			-
Ending Balance		$	384		$	2,442			$	1,045		$	2,115		$	551		$	6,537
As of December 31, 2013
(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
Allowance for loan losses:
Ending Balance		$	523		$	1,723			$	1,054		$	2,996		$	509		$	6,805
Ending balance: individually evaluated for impairment		$	24		$	989			$	48		$	-		$	-		$	1,061
Ending balance: collectively evaluated for impairment		$	499		$	734			$	1,006		$	2,996		$	509		$	5,744
Loans Receivable:
Ending Balance		$	52,801		$	103,337			$	136,142		$	423,959		$	-		$	716,239
Ending balance: individually evaluated for impairment		$	24		$	14,385			$	407		$	2,206		$	-		$	17,022
Ending balance: collectively evaluated for impairment		$	52,777		$	88,952			$	135,735		$	421,753		$	-		$	699,217
As of December 31, 2012
(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
Allowance for loan losses:
Ending Balance		$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
Ending balance: individually evaluated for impairment		$	-		$	1,110			$	54		$	-		$	-		$	1,164
Ending balance: collectively evaluated for impairment		$	550		$	965			$	977		$	2,541		$	512		$	5,545
Loans Receivable:
Ending Balance		$	54,445		$	96,955			$	134,885		$	405,895		$	-		$	692,180
Ending balance: individually evaluated for impairment		$	-		$	13,414			$	327		$	2,163		$	-		$	15,904
Ending balance: collectively evaluated for impairment		$	54,445		$	83,541			$	134,558		$	403,732		$	-		$	676,276
Credit Quality Information
The following tables represent credit exposures by internally assigned grades for year ended December 31, 2013. The grading analysis estimates the capability of the borrower to repay the contractual obligations of the loan agreements as scheduled or at all. The Company’s internal credit risk grading system is based on experiences with similarly graded loans.
The Company’s internally assigned grades are as follows:
Pass – loans which are protected by the current net worth and paying capacity of the obligor or by the value of the underlying collateral.
Special Mention – loans where a potential weakness or risk exists, which could cause a more serious problem if not corrected.
Substandard – loans that have a well-defined weakness based on objective evidence and be characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected.
Doubtful – loans classified as doubtful have all the weaknesses inherent in a substandard asset. In addition, these weaknesses make collection or liquidation in full highly questionable and improbable, based on existing circumstances.
Loss – loans classified as a loss are considered uncollectible, or of such value that continuance as an asset is not warranted.
As of December 31, 2013
(Dollar amounts in thousands)
		Residential			Residential				Commercial			Commercial			Commercial			Total
		Real Estate			Real Estate				Real Estate			Real Estate
		Multi – family			Construction				Commercial			Construction
Pass		$	37,857		$	40,874			$	63,532		$	25,971		$	52,730		$	220,964
Special Mention			-			382				1,283			-			17			1,682
Substandard			-			3,071				12,551			-			54			15,676
Doubtful			-			-				-			-			-			-
Loss			-			-				-			-			-			-
Ending Balance		$	37,857		$	44,327			$	77,366		$	25,971		$	52,801		$	238,322
As of December 31, 2012
(Dollar amounts in thousands)
		Residential			Residential				Commercial			Commercial			Commercial			Total
		Real Estate			Real Estate				Real Estate			Real Estate
		Multi – family			Construction				Commercial			Construction
Pass		$	33,472		$	41,138			$	65,696		$	15,878		$	53,883		$	210,067
Special Mention			-			4,477				1,334			-			527			6,338
Substandard			-			803				14,047			-			35			14,885
Doubtful			-			-				-			-			-			-
Loss			-			-				-			-			-			-
Ending Balance		$	33,472		$	46,418			$	81,077		$	15,878		$	54,445		$	231,290
The following tables present performing and nonperforming single family residential and consumer loans based on payment activity for the years ended December 31, 2013 and 2012. Payment activity is reviewed by management on a monthly basis to determine how loans are performing. Loans are considered to be nonperforming when they become 90 days delinquent.
As of December 31, 2013
(Dollar amounts in thousands)
		Residential			Consumer				Dealer			Other			Total
		Real Estate			Home				Auto and			Consumer
		Single Family			Equity				RV
Performing		$	338,370		$	82,692			$	46,364		$	6,588		$	474,014
Nonperforming			3,405			295				138			65			3,903
Total		$	341,775		$	82,987			$	46,502		$	6,653		$	477,917
As of December 31, 2012
(Dollar amounts in thousands)
		Residential			Consumer				Dealer			Other			Total
		Real Estate			Home				Auto and			Consumer
		Single Family			Equity				RV
Performing		$	322,662		$	80,124			$	46,450		$	7,787		$	457,023
Nonperforming			3,343			294				121			109			3,867
Total		$	326,005		$	80,418			$	46,571		$	7,896		$	460,890
Nonperforming loans also include certain loans that have been modified in TDRs where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Delinquent TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months.
Non-performing loans, which include nonaccrual loans and TDRs, were $8.7 million and $7.4 million at December 31, 2013 and 2012, respectively. The TDRs included in non-performing loans amounted to $107,000 and $368,000 at December 31, 2013 and 2012 respectively. At December 31, 2013 the Company also had $10.6 million of TDR’s that were in compliance with their modified terms.
For non-performing loans, the interest income that would have been recorded under the original terms of such loans and the interest income actually recognized for the years ended December 31, 2013, 2012 and 2011 are summarized below:
(Dollar amounts in thousands)
		2013			2012				2011
Interest income that would have been recorded		$	561		$	488			$	858
Interest income recognized			175			111				728
Interest income foregone		$	386		$	377			$	130
The Company is not committed to lend additional funds to debtors whose loans are on non-accrual status.
Age Analysis of Past Due Loans Receivable by Class
The following tables include an aging analysis of the investment of past due loans receivable as of December 31, 2013 and 2012:
(Dollar amounts in thousands)
As of December 31, 2013
		30-59 Days			60-89 Days				90 Days			Total Past			Current			Total Loans		Recorded
		Past Due			Past Due				Or Greater			Due						Receivable		Investment >
																				90 Days and
																				Accruing
Residential real estate
Single family		$	653		$	319			$	3,405		$	4,377		$	337,398		$	341,775	$	-
Construction			-			-				-			-			44,327			44,327		-
Multi - family			-			-				-			-			37,857			37,857		-
Commercial Real Estate
Commercial			53			65				4,787			4,905			72,461			77,366		-
Construction			-			-				-			-			25,971			25,971		-
Consumer
Consumer - home equity			156			65				214			435			82,552			82,987		-
Consumer - dealer auto and RV			993			106				136			1,235			45,267			46,502		-
Consumer - other			47			43				65			155			6,498			6,653		-
Commercial			-			-				30			30			52,771			52,801		-
Total		$	1,902		$	598			$	8,637		$	11,137		$	705,102		$	716,239	$	-
(Dollar amounts in thousands)
As of December 31, 2012
		30-59 Days			60-89 Days				90 Days			Total Past			Current			Total Loans		Recorded
		Past Due			Past Due				Or Greater			Due						Receivable		Investment >
																				90 Days and
																				Accruing
Residential real estate
Single family		$	887		$	420			$	3,343		$	4,650		$	321,355		$	326,005	$	-
Construction			-			-				-			-			46,418			46,418		-
Multi - family			-			-				-			-			33,472			33,472		-
Commercial Real Estate
Commercial			246			598				3,211			4,055			77,022			81,077		-
Construction			-			-				-			-			15,878			15,878		-
Consumer
Consumer - home equity			219			-				223			442			79,976			80,418		-
Consumer - dealer auto and RV			771			230				104			1,105			45,466			46,571		-
Consumer - other			70			12				109			191			7,705			7,896		-
Commercial			-			2				35			37			54,408			54,445		-
Total		$	2,193		$	1,262			$	7,025		$	10,480		$	681,700		$	692,180	$	-
Impaired Loans
Management considers commercial loans, multi-family, residential real estate construction and commercial real estate loans which are 90 days or more past due to be impaired. Larger commercial loans and commercial real estate loans which are 60 days or more past due are selected for impairment testing. These loans are analyzed to determine if it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. If management determines that the fair value of the impaired loan is less than the recorded investment in the loan, impairment is recognized through a provision for loan loss estimate or a charge-off to the allowance for loan losses.
The Company collectively reviews all other residential real estate and consumer loans for impairment.
The following tables include the recorded investment and unpaid principal balances for impaired loans receivable as of December 31, 2013 and 2012 with the associated allowance for loan losses amount, if applicable.
(Dollar amounts in thousands)
As of December 31, 2013
		Recorded			Unpaid				Related
		Investment			Principal				Allowance
					Balance
With no related allowance recorded:
Commercial real estate		$	3,139		$	3,246			$	-
Residential single family			1,356			1,356				-
Residential construction loans			850			850				-
Consumer loans
Home Equity			249			253				-
Dealer auto and RV			6			6				-
With an allowance recorded:
Commercial real estate			11,246			11,409				989
Commercial business loans			24			24				24
Consumer loans
Home equity			149			149				45
Dealer auto and RV			3			3				3
Total:
Commercial Real Estate			14,385			14,655				989
Commercial business loans			24			24				24
Residential single family			1,356			1,356				-
Residential construction loans			850			850				-
Consumer			407			411				48
Total		$	17,022		$	17,296			$	1,061
(Dollar amounts in thousands)
As of December 31, 2012
		Recorded			Unpaid				Related
		Investment			Principal				Allowance
					Balance
With no related allowance recorded:
Commercial real estate		$	5,433		$	5,540			$	-
Residential single family			1,360			1,360				-
Residential construction loans			803			803				-
Consumer loans
Home Equity			130			130				-
Dealer auto and RV			14			14				-
With an allowance recorded:
Commercial real estate			7,981			8,144				1,110
Consumer loans
Home equity			179			179				50
Dealer auto and RV			4			4				4
Total:
Commercial Real Estate			13,414			13,684				1,110
Residential single family			1,360			1,360				-
Residential construction loans			803			803				-
Consumer			327			327				54
Total		$	15,904		$	16,174			$	1,164
The following include the average recorded investment and interest income recognized on the loans considered to be impaired during the years ended December 31, 2013, 2012 and 2011:
(Dollar amounts in thousands)
As of December 31, 2013		2013							2012						2011
		Average			Interest				Average			Interest			Average			Interest
		Recorded			Income				Recorded			Income			Recorded			Income
		Investment			Recognized				Investment			Recognized			Investment			Recognized
With no related allowance recorded:
Commercial real estate		$	3,147		$	83			$	5,473		$	228		$	1,416		$	302
Commercial business loans			-			-				-			-			68			10
Residential single family			1,358			9				1,362			9			1,207			61
Residential construction loans			883			33				512			41			-			-
Consumer loans
Home Equity			211			16				57			11			-			-
Dealer auto and RV			9			2				3			3			-			-
With an allowance recorded:
Commercial real estate			10,848			609				8,186			406			7,478			544
Commercial business loans			14			1				-			-			122			3
Consumer loans
Home equity			150			9				166			12			154			9
Dealer auto and RV			3			-				1			1			-			-
Total:
Commercial Real Estate			13,995			692				13,659			634			8,894			846
Commercial business loans			14			1				-			-			190			13
Residential single family			1,358			9				1,362			9			1,207			61
Residential construction loans			883			33				512			41			-			-
Consumer			373			27				227			27			154			9
Nonaccrual Loans
Loans are considered nonaccrual upon reaching 90 days delinquency, although the Company may be receiving partial payments of interest and partial repayments of principal on such loans. When a loan is placed in nonaccrual status, previously accrued but unpaid interest is deducted from interest income.
The following table sets forth the loans receivable on nonaccrual status as of December 31, 2013 and December 31, 2012. The balances are presented by class of loans.
(Dollar amounts in thousands)
		2013			2012
Commercial		$	30		$	35
Commercial Real Estate			4,787			3,432
Residential			3,405			3,403
Consumer
Consumer – Home Equity			214			293
Consumer – Dealer auto and RV			136			121
Consumer – other			65			109
Total		$	8,637		$	7,393
Modifications
The Company’s loan portfolio also includes TDR’s, where economic concessions have been granted to borrowers who have experienced or are expected to experience financial difficulties. These concessions typically result from the Company’s loss mitigation activities and could include reductions in the interest rate, payment extensions, forgiveness of principal, forbearance or other actions. Delinquent TDRs are classified as nonperforming at the time of restructure and may only be returned to performing status after considering the borrower’s sustained repayment performance for a reasonable period, generally six months.
When the Company modifies a loan, management evaluates any possible impairment based on the present value of expected future cash flows, discounted at the contractual interest rate of the original loan agreement, except when the sole (remaining) source of repayment for the loan is the operation or liquidation of the collateral. In these cases, management uses the current fair value of the collateral, less selling costs, instead of discounted cash flows. If management determines that the value of the modified loan is less than the recorded investment in the loan (net of previous charge-offs, deferred loan fees or costs and unamortized premium or discount), impairment is recognized by segment or class of loan, as applicable, through an allowance estimate or a charge-off to the allowance. Segment and class status is determined by the loan’s classification at origination.
The following table includes the recorded investment and number of modifications for modified loans, as of December 31, 2013 and 2012. The Company reports the recorded investment in the loans prior to a modification and also the recorded investment in the loans after the loans were restructured.
As of December 31, 2013
(Dollar amounts in thousands)
									Post-Modification Recorded Investment
		Number of			Pre-Modification				Maturity Date			Deferral of			Other			Total
		Contracts			Outstanding				Extension			Principal Payments
					Recorded
					Investment
Troubled Debt Restructurings
Commercial real estate			11		$	2,306			$	26		$	-		$	2,280		$	2,306
Commercial business loans			1			25										25			25
Consumer
Home equity			8			148				148			-			-			148
Troubled Debt Restructurings			20		$	2,479			$	174		$	-		$	2,305		$	2,479
As of December 31, 2012
(Dollar amounts in thousands)
									Post-Modification Recorded Investment
		Number of			Pre-Modification				Maturity Date			Deferral of			Other			Total
		Contracts			Outstanding				Extension			Principal Payments
					Recorded
					Investment
Troubled Debt Restructurings
Residential construction			4		$	1,053			$	1,053		$	-		$	-		$	1,053
Commercial real estate			2			198				198			-			-			198
Consumer
Home equity			7			168				168			-			-			168
Dealer auto and RV			4			18				18			-			-			18
Troubled Debt Restructurings			17		$	1,437			$	1,437		$	-		$	-		$	1,437
The Company did not have any TDR’s that defaulted subsequent to their modification during the periods reported.

Investment_Required_by_Regulat

Investment Required by Regulation	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Investment Required by Regulation	'
	4	Investment Required by Regulation
	The Company’s subsidiary bank is a member of the FHLB system. As a member, the Bank maintains an investment in the capital stock of the FHLB of Pittsburgh, at cost, in an amount not less than 1.0% of the unpaid principal balances of residential mortgage loans, 0.3% of total assets or approximately 5.0% of outstanding advances, if any due to the FHLB, whichever is greater, as calculated periodically by the FHLB. Purchases and redemptions of FHLB stock are made directly with the FHLB at par.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Premises and Equipment	'
	5	Premises and Equipment
	Premises and equipment at December 31, are summarized by major classification as follows:
	(Dollar amounts in thousands)	2013		2012
	Land	$	3,377	$	3,444
	Buildings and improvements		19,839		19,889
	Leasehold improvements		805		795
	Furniture, fixtures and equipment		8,697		8,723
			32,718		32,851
	Less accumulated depreciation and amortization		19,410		18,565
		$	13,308	$	14,286
	Depreciation expense for the years December 31, 2013, 2012 and 2011 was $962,000, $1.0 million, and $962,000, respectively.
	The Company is obligated under non-cancelable long term operating lease agreements for certain branch offices. These lease agreements, each having renewal options and none expiring later than 2019, have approximate aggregate rentals of $77,000, $75,000, $50,000, $50,000, $50,000 and $29,000 for the years ended December 31, 2014, 2015, 2016, 2017, 2018 and thereafter, respectively. Rent expense for the years ended December 31, 2013, 2012 and 2011 was $82,000, $83,000 and $85,000, respectively.

Deposits

Deposits	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Deposits	'
	6	Deposits
	The following table summarizes the Company’s deposits as of December 31:
	(Dollar amounts in thousands)	2013				2012
	Type of accounts	Amount		%		Amount		%
	Noninterest-bearing deposits	$	124,777		10.20%	$	109,964		9.30%
	NOW account deposits		234,163		19.20%		223,736		19.00%
	Money Market deposits		39,688		3.20%		39,255		3.30%
	Passbook account deposits		178,412		14.60%		173,343		14.70%
	Time deposits		645,727		52.80%		631,759		53.70%
		$	1,222,767		100.0%	$	1,178,057		100.0%
	Time deposits mature as follows:
	Within one year	$	437,731		67.80%	$	375,862		59.60%
	After one year through two years		115,976		18.00%		118,333		18.70%
	After two years through three years		60,045		9.30%		78,492		12.40%
	After three years through four years		16,393		2.50%		36,920		5.80%
	After four years through five years		10,871		1.70%		17,106		2.70%
	Thereafter		4,711		0.70%		5,046		0.80%
		$	645,727		100.00%	$	631,759		100.00%
	The Company had a total of $272.1 million and $244.8 million in time deposits of $100,000 or more at December 31, 2013 and 2012, respectively.
	Interest expense by type of deposit account for the years ended December 31, 2013, 2012 and 2011 is as follows:
	(Dollar amounts in thousands)	2013		2012		2011
	NOW account deposits	$	232	$	298	$	556
	Money Market deposits		34		47		103
	Passbook account deposits		89		156		372
	Time deposits		7,017		8,824		10,923
		$	7,372	$	9,325	$	11,954

Borrowed_Funds

Borrowed Funds	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Borrowed Funds	'
	7	Borrowed Funds
	Borrowed funds, which include FHLB advances, repurchase agreements, ESOP borrowings, corporate borrowings, borrowings for joint ventures and junior subordinated debt, as of December 31, 2013 and 2012 are summarized as follows:
	(Dollar amounts in thousands)	2013					2012
		Weighted			Amount		Weighted			Amount
		average rate					average rate
	FHLB advances:
	Due within 12 months		2.12	%	$	101,492		2.69	%	$	100,147
	Due beyond 12 months but within 2 years		2.14	%		25,873		2.88	%		71,392
	Due beyond 2 years but within 3 years		0.99	%		78,008		3.13	%		15,873
	Due beyond 3 years but within 4 years		1.34	%		73,380		2.15	%		8,013
	Due beyond 4 years but within 5 years		3.26	%		12,168		1.03	%		7,807
	Due beyond 5 years		-			-		3.61	%		10,000
					$	290,921				$	213,232
	Repurchase agreements:
	Due within 12 months		2.34	%	$	58,000		2.99	%	$	148,000
	Due beyond 12 months but within 2 years		4.12	%		10,000		3.07	%		40,000
	Due beyond 2 years but within 3 years		-			-		4.12	%		10,000
	Due beyond 3 years but within 4 years		4.28	%		25,000		-			-
	Due beyond 4 years but within 5 years		4.49	%		45,000		4.28	%		25,000
	Due beyond 5 years		-			-		4.49	%		45,000
					$	138,000				$	268,000
	Other borrowings:
	ESOP borrowings
	Due within 12 months		4.68	%	$	1,000		4.68	%	$	1,000
	Due beyond 12 months but within 2 years		4.68	%		1,000		4.68	%		1,000
	Due beyond 2 years but within 3 years		4.68	%		250		4.68	%		1,000
	Due beyond 3 years but within 4 years		-			-		4.68	%		250
					$	2,250				$	3,250
	Corporate borrowings
	Due within 12 months		3.75	%	$	1,000		-		$	-
	Due beyond 12 months but within 2 years		3.75	%		1,000		-			-
	Due beyond 2 years but within 3 years		3.75	%		1,000		-			-
	Due beyond 3 years but within 4 years		3.75	%		1,000		-			-
	Due beyond 4 years but within 5 years		3.75	%		5,973		-			-
					$	9,973				$	-
	Borrowings for joint ventures
	Due beyond 4 years but within 5 years		-			-		3.75	%		74
					$	-				$	74
	Junior subordinated notes
	Due beyond 5 years		2.06	%	$	36,083		2.41	%	$	46,393
	Included in the $290.9 million of FHLB advances at December 31, 2013 are $20.0 million in structured advances with imbedded caps at various strike rates based on the 3 month LIBOR rate. If during the term of the advance, the 3 month LIBOR rate exceeds the strike rate, the interest rate on the structured advance is reduced by the difference between the rate and the strike rate.
	FHLB advances are secured by FHLB stock, qualifying residential mortgage loans and mortgage-backed securities to the extent that the fair value of such pledged collateral must be at least equal to the advances outstanding. At December 31, 2013 the Company had a maximum borrowing capacity with the FHLB of $366.0 million, with $65.1 million available for use.
	Included in the $138.0 million of repurchase agreements (REPOs) are $20.0 million in structured REPOs with imbedded caps at various strike rates based on the 3 month LIBOR rate. If during the term of the REPO, the 3 month LIBOR rate exceeds the strike rate, the interest rate on the structured REPO is reduced by the difference between the rate and the strike rate.
	Also included in the $138.0 million of REPOs is a $25.0 million structured REPO in which the Company pays a fixed rate of interest. At the reset date and every quarterly period thereafter, the counterparty has the right to terminate the transaction. It has historically been the Company’s position to pay off any borrowings and replace them with fixed rate funding if converted by the counterparty.
	The Company enters into sales of securities under agreements to repurchase. Such REPOs are treated as borrowed funds. The dollar amount of the securities underlying the agreements remains in their respective asset accounts.
	REPOs are collateralized by various securities that are either held in safekeeping at the FHLB or delivered to the dealer who arranged the transaction and the Company maintains control of these securities.
	The fair value of such securities exceeded the amortized cost of the securities sold under agreements to repurchase. The fair value of the securities as of December 31, 2013 was $168.8 million with an amortized cost of $160.4 million. The fair value of the securities as of December 31, 2012 was $318.9 million with an amortized cost of $297.8 million. The average maturity date of the mortgage backed securities sold under agreements to repurchase was greater than 90 days for the periods ended December 31, 2013 and December 31, 2012.
	As of December 31, 2013 and December 31, 2012, the Company had REPO’s with Citigroup of $45.0 million and $115.0 million respectively, Barclays Capital of $30.0 million and $40.0 million, respectively, Credit Suisse of $43.0 million and $83.0 million, respectively and Morgan Stanley of $20.0 million and $30.0 million, respectively.
	As of December 31, 2013, the REPO’s with Citigroup had $8.1 million at risk (where the fair value of the securities exceeds the borrowing), with a weighted average maturity of 23 months, Barclays Capital had $6.9 million at risk with a weighted average maturity of 43 months, Credit Suisse had $12.4 million at risk with a weighted average maturity of 33 months and Morgan Stanley had $3.4 million at risk with a weighted average maturity of 6 months.
	Borrowings under repurchase agreements averaged $173.0 million, $305.5 million and $356.8 million during 2013, 2012 and 2011, respectively. The maximum amount outstanding at any month-end was $258.0 million, $343.0 million and $368.0 million during 2013, 2012 and 2011, respectively.
	At December 31, 2013, the Bank had cash management lines of credit with PNC Bank, NA and the Federal Home Loan Bank of Pittsburgh enabling it to borrow up to $36.0 million and $100.0 million, respectively. There were no borrowings from the PNC Bank line of credit outstanding as of December 31, 2013 and December 31, 2012. The Bank had borrowings on its line of credit with the FHLB in the amount of $20.1 million and $27.5 million, respectively at December 31, 2013 and 2012. These borrowings carried an interest rate of 0.25% December 31, 2013 and 2012, respectively. The Bank also has the ability to borrow funds through the Federal Reserve Bank up to the amount of the pledged collateral. The rate is the current primary credit rate offered.
	The Company has a $10.0 million revolving line of credit loan with WesBanco that expires on April 30, 2014 unless extended. The rate on this line of credit is 1 month LIBOR plus 2.75% with a floor of 3.00%. There were no borrowings on this line at December 31, 2013.
	On April 10, 2003, ESB Capital Trust II (Trust II), a statutory business trust established under Delaware law that is a subsidiary of the Company, issued $10.0 million variable rate preferred securities with a stated value and liquidation preference of $1,000 per share. The Company purchased $310,000 of common securities of Trust II. The dividend rate on the preferred securities reset quarterly to equal the LIBOR plus 3.25%. Trust II’s obligations under the preferred securities issued are fully and unconditionally guaranteed by the Company. The proceeds from the sale of the preferred securities and the common securities were utilized by the Trust II to invest in $10.3 million of variable rate subordinated debt of the Company. The subordinated debt is unsecured and ranks subordinate and junior in right of payment to all indebtedness, liabilities and obligations of the Company. The subordinated debt primarily represents the sole assets of the Trust II. Dividends on the preferred securities is cumulative and payable quarterly in arrears. The Company has the right to optionally redeem the subordinated debt prior to the maturity date of April 24, 2033, on or after April 24, 2008, at the redemption price, plus accrued and unpaid distributions, if any, at the redemption date. Under the occurrence of certain events, specifically, a tax event, investment company event or capital treatment event as more fully defined in the Indenture dated April 10, 2003, the Company may redeem in whole, but not in part, the subordinated debt at any time within 90 days following the occurrence of such event. Proceeds from any redemption of the subordinated debt would cause a mandatory redemption of the preferred securities and the common securities having an aggregate liquidation amount equal to the principal amount of the subordinated debt redeemed. On July 23, 2008, the Company redeemed $5.0 million of the preferred securities of ESB Capital Trust II with proceeds from a $14.0 million loan with First Tennessee Bank National Association (“First Tennessee”). The remainder of the First Tennessee loan was used to repay an existing loan with First Tennessee with a remaining balance of $9.0 million, which had an interest rate of 5.55% and was due on December 31, 2008. No unamortized deferred debt issuance costs remain on this issuance. On January 24, 2013, the Company redeemed the remaining subordinated debt and securities of ESB Capital Trust II with $5.0 million of the proceeds from a $10.0 million loan with WesBanco, with a fixed interest rate of 3.75%. The remaining $5.0 million of the WesBanco loan was drawn on March 15, 2013 and used to redeem the subordinated debt and securities of ESB Capital Trust III.
	On December 17, 2003, ESB Statutory Trust (Trust III), a statutory business trust established under Delaware law that is a subsidiary of the Company, issued $5.0 million variable rate preferred securities with a stated value and liquidation preference of $1,000 per share. The Company purchased $155,000 of common securities of Trust III. The preferred securities reset quarterly to equal the LIBOR Index plus 2.95%. Trust III’s obligations under the preferred securities issued are fully and unconditionally guaranteed by the Company. The proceeds from the sale of the preferred securities and the common securities were utilized by Trust III to invest in $5.2 million of variable rate subordinated debt of the Company. The subordinated debt is unsecured and ranks subordinate and junior in right of payment to all indebtedness, liabilities and obligations of the Company. The subordinated debt primarily represents the sole assets of Trust III. Interest on the preferred securities is cumulative and payable quarterly in arrears.
	The Company has the right to optionally redeem the subordinated debt prior to the maturity date of December 17, 2033, on or after December 17, 2008, at the redemption price, plus accrued and unpaid distributions, if any, at the redemption date. Under the occurrence of certain events, specifically, a tax event, investment company event or capital treatment event as more fully defined in the Indenture dated December 17, 2003; the Company may redeem in whole, but not in part, the subordinated debt at any time within 90 days following the occurrence of such event. Proceeds from any redemption of the subordinated debt would cause a mandatory redemption of the preferred securities and the common securities having an aggregate liquidation amount equal to the principal amount of the subordinated debt redeemed. No unamortized deferred debt issuance costs remain on this issuance. On March 18, 2013, the Company redeemed the subordinated debt and securities of ESB Capital Trust III with a $5.0 million of the aforementioned proceeds of the $10.0 million loan from WesBanco.
	On February 10, 2005, ESB Capital Trust IV (Trust IV), a statutory business trust established under Delaware law that is a subsidiary of the Company, issued $35.0 million fixed rate preferred securities. The Company purchased $1.1 million of common securities of Trust IV. The preferred securities are fixed at a rate of 6.03% for six years and then are variable at three month LIBOR plus 1.82%. The preferred securities have a stated maturity of thirty years. Trust IV’s obligations under the preferred securities issued are fully and unconditionally guaranteed by the Company. The proceeds from the sale of the preferred securities and the common securities were utilized by Trust IV to invest in $36.1 million of fixed/variable rate subordinated debt of the Company. The subordinated debt is unsecured and ranks subordinate and junior in right of payment to all indebtedness, liabilities and obligations of the Company. The subordinated debt primarily represents the sole assets of Trust IV. Interest on the preferred securities is cumulative and payable quarterly in arrears. The Company has the right to optionally redeem the subordinated debt prior to the maturity date of February 10, 2035, on or after February 10, 2011, at the redemption price, which is equal to the liquidation amount, plus accrued and unpaid distributions, if any, at the redemption date. Under the occurrence of certain events, specifically, a tax event, investment company event or capital treatment event as more fully defined in the Indenture dated February 10, 2005, the Company may redeem in whole, but not in part, the subordinated debt at any time within 90 days following the occurrence of such event. Proceeds from any redemption of the subordinated debt would cause a mandatory redemption of the preferred securities and the common securities having an aggregate liquidation amount equal to the principal amount of the subordinated debt redeemed. The Company did not have any deferred debt issuance costs associated with the preferred securities.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	8	Income Taxes
	The provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is comprised of the following:
	(Dollar amounts in thousands)	2013			2012			2011
	Current expense:
	Federal	$	3,065		$	3,578		$	5,170
	State		140			48			31
			3,205			3,626			5,201
	Deferred benefit:
	Federal		114			(412	)		(1,758	)
	State		22			22			(63	)
		$	3,341		$	3,236		$	3,380
	In addition to income taxes applicable to income before taxes in the consolidated statements of operations, the following income tax amounts were recorded to stockholders’ equity during the years ended December 31, 2013, 2012 and 2011:
	(Dollar amounts in thousands)	2013			2012			2011
	Net loss (gain) on securities available for sale	$	12,331		$	(4,072	)	$	(4,350	)
	Net (gain) loss on fair value adjustment on derivatives		(655	)		74			965
	Net unrecognized pension (benefit) cost		(81	)		14			15
	Compensation expense for tax purposes in excess of amounts recognized for financial statement purposes		47			48			55
		$	11,642		$	(3,936	)	$	(3,315	)
	The tax effects of temporary differences between the financial reporting basis and income tax basis of assets and liabilities that are included in the net deferred tax asset as of December 31, relate to the following:
	(Dollar amounts in thousands)	2013			2012
	Deferred tax assets:
	Allowances for losses on loans and real estate owned	$	2,432		$	2,369
	Minimum tax credit carry forward		3,851			3,834
	Writedown of debt		1,255			1,305
	Real estate acquired through foreclosure, net		176			213
	State net operating loss carryover		556			568
	Defined benefit plans		244			325
	Mortgage servicing rights		1			3
	Investment in joint ventures		906			1,210
	Interest rate swaps		2,515			3,733
	Other		2,612			2,407
	Total gross deferred tax assets		14,548			15,967
	Less state valuation allowance		244			234
	Deferred tax assets after valuation allowance		14,304			15,733
	Deferred tax liabilities:
	Investment in securities available for sale		5,257			17,588
	Accretion of discounts		3			3
	Core deposit intangible		41			101
	Purchase price adjustments		41			63
	Other		225			218
	Gross deferred tax liabilities		5,567			17,973
	Net deferred tax (liability)	$	8,737		$	(2,240	)
	As of December 31, 2013 and 2012, the Company determined that it was not required to establish a valuation allowance for federal deferred tax assets since it is more likely than not that the deferred tax asset will be realized through carry-back to taxable income in prior years, future reversals of existing taxable temporary differences and, to a lesser extent, future taxable income.
	The alternative minimum tax credit of $3.9 million is available to reduce future regular income taxes over an indefinite period.
	A portion of the deferred tax assets relating to state net operating loss carryforwards were recorded as part of the purchase price allocation of the acquisition of PHSB Financial Corporation and its wholly owned subsidiary Peoples Home Savings Bank during 2005. The state net operating loss carryforward of $3.6 million expires in 2024. This net operating loss was generated by PHSB Financial Corporation in its final tax return. The Company created an additional state deferred tax asset relating to write-downs taken at the Company’s joint venture projects. The Company did establish a partial valuation allowance for this asset since it is more likely than not that a portion of the deferred tax asset will not be realized through future taxable income. At December 31, 2013 and 2012, the valuation allowance for state deferred tax assets was $244,000 and $234,000, respectively.
	A reconciliation between the provision for income taxes and the amount computed by multiplying operating results before income taxes by the statutory federal income tax rate of 35% for the years ended December 31, 2013, 2012 and 2011:
		2013			2012			2011
	Tax at statutory rate		35	%		35	%		35	%
	(Decrease) increase resulting from:
	Tax free income, net of interest disallowance		(14.0	%)		(14.2	%)		(12.6	%)
	State income taxes, net of Federal income tax benefit		0.5	%		0.2	%		0.1	%
	Earnings of BOLI		(1.1	%)		(1.2	%)		(1.3	%)
	Other, net		(2.5	%)		(1.9	%)		(2.7	%)
	Effective rate		17.9	%		17.8	%		18.5	%
	The Company and its subsidiaries file a consolidated federal income tax return. Prior to 1996, the Bank was permitted under the Internal Revenue Code to deduct an annual addition to a reserve for bad debts in determining taxable income, subject to certain limitations. Subsequent to 1995, the Bank’s bad debt deduction is based on actual net charge-offs. Bad debt deductions for income tax purposes are included in taxable income of later years only if the Bank’s base year bad debt reserve is used subsequently for purposes other than to absorb bad debt losses. Because the Bank does not intend to use the reserve for purposes other than to absorb losses, no deferred income taxes have been provided prior to 1987. Retained earnings at December 31, 2012 (the most recent date for which a tax return has been filed) include approximately $17.7 million, representing such bad debt deductions for which no deferred income taxes have been provided.
	GAAP prescribes a recognition threshold and a measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. Guidance is also provided on the accounting for and disclosure of unrecognized tax benefits, interest and penalties.
	There is currently no liability for uncertain tax positions and no known unrecognized tax benefits. The Company recognizes, when applicable, interest and penalties related to unrecognized tax benefits in the provision for income taxes in the consolidated statements of operations. The Company’s federal and state income tax returns for taxable years through December 31, 2009 have been closed for purposes of examination by the IRS and the Pennsylvania Department of Revenue.

Employee_Benefit_Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	9	Employee Benefit Plans
	Retirement Savings Plan
	The Company has a defined contribution employee retirement plan for the benefit of substantially all employees. The plan provides for regular employer payments that match each participating employee’s contribution to their individual tax-deferred retirement account. Employees can contribute up to 100% of their compensation, less required deductions, to the plan and the Company matches 100% of the first 1% and 50% of the remaining 2% through 6% of employee contributions in stock of the Company. The Company contributed $298,000, $313,000 and $286,000 to the plan during 2013, 2012 and 2011, respectively.
	Employee Stock Ownership Plan
	The Company has a tax qualified Employee Stock Ownership Plan (ESOP) for the benefit of its employees. Employees begin to participate in the plan January 1 of the year following their date of hire. Participants become 25% vested in their accounts after two years of service, 50% after three years of service, 75% after four years of service and 100% after five years of service or, earlier, upon death, disability or attainment of normal retirement age.
	The purchase of shares of the Company’s stock by the ESOP is funded by a loan and contributions from the Company, through the Bank. Unreleased ESOP shares collateralize the loan payable and the cost of these shares is recorded as a contra-equity account in stockholders’ equity of the Company. The ESOP’s loan payable bears a weighted-average interest rate of 4.68% and matures in 2016. Shares released as debt payments are made by the ESOP to the loan. The ESOP’s sources of repayment of the loans can include dividends, if any, on the unallocated stock held by the ESOP and discretionary contributions from the Company to the ESOP and earnings thereon.
	Dividends received on unallocated ESOP shares during 2013, 2012 and 2011 amounted to $108,044, $169,899 and $111,622, respectively. All of the unallocated dividends were used for debt service on the loan. The Company contributed $1.5 million, $1.3 million and $1.3 million for each of the years ended December 31, 2013, 2012 and 2011. The ESOP incurred interest on the loan of $134,257, $181,122, and $205,562 for the years ended December 31, 2013, 2012 and 2011, respectively.
	Compensation is recognized under the shares released method and compensation expense is equal to the fair value of the shares committed to be released and unallocated ESOP shares are excluded from outstanding shares for purposes of computing EPS.
	During 2013, 2012 and 2011, the Company recognized compensation expense related to the ESOP of $1.6 million, $1.4 million and $1.3 million, respectively.
	As of December 31, 2013 and 2012, the ESOP held a total of 2,811,955 and 2,691,012 shares, respectively, of the Company’s stock and there were 200,569 and 296,096 unallocated shares, respectively, with a fair value of $2,848,080 and $3,422,367, respectively. During 2013 and 2012, 95,527 and 99,491 shares were released for allocation, respectively. During 2013, 2012 and 2011, 34,073, 30,108 and 52,436 additional shares were purchased by the Company to be released for allocation at a cost of $425,000, $329,000, and $504,000, respectively. These amounts were included in the Company’s compensation expense related to the ESOP.
	Stock Option Plans
	The Company maintains various stock option plans (Option Plans), which provide for the grant of stock options to directors, officers and other key employees. The Option Plans provide for the grant of both incentive stock options and compensatory stock options. Stock options are granted at an exercise price equal to the market price at the date of grant, the options vest over a specified time and are exercisable on the date they vest and have a maximum term of ten years. These terms are discretionary. Stock option activities under the Option Plans for the years ended December 31, 2013 ,2012 and 2011 are as follows:
		2013						2012								2011
		Options			Weighted			Options				Weighted				Options				Weighted
					Average							Average								Average
					Exercise							Exercise								Exercise
					Price/Share							Price/Share								Price/Share
	Outstanding at beginning of year		1,195,661		$	9.51			1,102,325			$	9.08				1,201,410			$	8.53
	Granted		258,990			13.36			259,596				10.5				141,266				10.99
	Exercised		(161,811	)		9.88			(112,105	)			7.93				(146,334	)			7.34
	Forfeited		(19,750	)		9.86			(54,155	)			8.78				(94,018	)			7.68
	Outstanding at end of year		1,273,090			10.24			1,195,661				9.51				1,102,325				9.08
	Exercisable at end of year		875,309		$	9.47			827,640			$	9.13				793,846			$	8.78
	The following table summarizes certain characteristics of issued stock options as of December 31, 2013:
	Year Issued	Options			Exercise			Average
		Outstanding			Price			Remaining
								Contractual
								Life (in years)
	2004		78,133		$	10.08			0.9
	2005		68,534			8.48			1.3
	2005		17,709			8.61			1.3
	2006		59,355			7.47			2.9
	2007		57,492			7.03			3.9
	2008		69,768			7.16			4.9
	2009		118,668			8.02			5.9
	2010		162,274			10.35			6.9
	2011		129,686			11			7.9
	2012		252,481			10.5			8.9
	2013		258,990			13.36			9.9
			1,273,090		$	10.24			6.7
	Management Recognition Plan and Restricted Stock Plan
	In connection with previous acquisitions, the Company acquired shares of stock held in trust for potential future distribution to management and key employees for compensation purposes. As of December 31, 2013, there were 13,330 shares held in the Management Recognition Plan (MRP) trust.
	In May 2004, the Company awarded 37,740 shares to eligible individuals, 5,784 shares vested on the date of the grant, 27,870 shares subsequently vested and 4,086 shares have been forfeited. The price on the grant date was $10.68 and the fair value of the shares was approximately $403,000.
	In May 2005, the Company awarded 840 shares to eligible individuals, 90 shares vested on the date of the grant and 750 shares subsequently vested. The price on the grant date was $11.04 and the fair value of the shares was approximately $10,000.
	In November 2011, the Company awarded 19,042 shares to eligible individuals, 1,904 shares vested on the date of the grant, 3,808 shares subsequently vested and the remaining 13,330 shares will vest over a scheduled vesting period ending in 2020.
	In November 2011, the Company awarded 88,955 shares, from the restricted stock plan (RSP), to eligible individuals, 8,896 shares vested on the date of the grant, 17,788 shares have subsequently vested and the remaining 62,271 shares will vest over a scheduled vesting period ending in 2020. Upon vesting the shares will be awarded to the individuals.
	In November 2012, the Company awarded 33,330 shares, from the RSP, to eligible individuals, 6,662 shares vested on the date of the grant, 6,665 shares have subsequently vested and the remaining 20,003 shares will vest over a scheduled vesting period ending in 2016. Upon vesting the shares will be awarded to the individuals.
	In November 2013, the Company awarded 26,196 shares, from the RSP, to eligible individuals, 5,238 shares vested on the date of the grant and the remaining 20,958 shares will vest over a scheduled vesting period ending in 2017. Upon vesting the shares will be awarded to the individuals.
	Compensation expense, related to the MRP, recognized in 2013, 2012 and 2011 was $21,000, $21,000 and $37,000, respectively. The Company is expected to recognize compensation expense of $21,000, $21,000, $21,000, $21,000, $21,000 and $42,000 for the years 2014, 2015, 2016, 2017, 2018 and thereafter.
	Compensation expense, related to the RSP, recognized in 2013, 2012 and 2011 was $211,000, $150,000 and $106,000, respectively. The Company is expected to recognize compensation expense of $211,000, $213,000, $214,000, $151,000, $91,000 and $181,000 respectively for the years 2014, 2015, 2016, 2017, 2018 and thereafter.
	The following is a summary of the changes in the stock for the MRP and RSP during the years ended December 31, 2013, 2012 and 2011:
		Shares
	Nonvested restricted stock as of January 1, 2011		3,306
	Granted		108,000
	Vested		(13,956	)
	Forfeited		(150	)
	Nonvested restricted stock as of December 31, 2011		97,200
	Granted		33,332
	Vested		(17,464	)
	Forfeited		-
	Nonvested restricted stock as of December 31, 2012		113,068
	Granted		26,196
	Vested		(22,703	)
Forfeited		-
Nonvested restricted stock as of December 31, 2013		116,561
Excess Benefit Plan
The Company has adopted an excess benefit plan for the purpose of permitting an executive officer and any other employees of the Company who may be designated pursuant to the plan, to receive certain benefits that the executive officer and any other employees of the Company otherwise would be eligible to receive under the Company’s retirement and profit sharing plan and ESOP but for the limitations set forth in Section 401(a)(17), 402(g) and 415 of the Internal Revenue Code of 1986, as amended (the “Code”). Pursuant to the excess benefit plan, during any plan year the Company shall make matching contributions on behalf of the participant in an amount equal to the amount of matching contributions that would have been made by the Company on behalf of the participant but for limitations in the Code, less the actual amount of matching contributions actually made by the Company on behalf of the participant. Finally, the excess benefit plan generally provides that during any plan year a participant shall receive a supplemental ESOP allocation in an amount equal to the amount which would have been allocated to the participant but for limitations in the Code, less the amount actually allocated to the participant pursuant to the ESOP. The supplemental benefits to be received by a participant pursuant to the excess benefit plan shall be credited to an account maintained pursuant to the plan within 180 days after the end of each plan year. The Company maintains a trust, which currently holds 96,790 shares of common stock, to fund its obligation under the excess benefit plan.
Supplemental Executive Retirement Plan and Directors’ Retirement Plan
The Company has adopted a Supplemental Executive Benefit Plan (SERP) in order to provide supplemental retirement and death benefits for certain key employees of the Company. Under the SERP, participants shall receive an annual retirement benefit following retirement at age 65 equal to 25% of the participant’s final average pay multiplied by a target retirement benefit percentage. Final average pay is based upon the participant’s last three year’s compensation and the target benefit percentage is equal to the fraction resulting from the participant’s years of credited service divided by 20, this targeted percentage is capped at 100%. Benefits under the plan are payable in ten equal annual payments and a lesser benefit is payable upon early retirement at age 50 with at least twelve years of service. If a participant dies prior to retirement, the participant’s estate will receive a lump sum payment equal to the net present value of future benefit payments under the plan. At December 31, 2013, the participants in the plan had credited service under the SERP ranging from 23 to 35 years.
The Company and the Bank have adopted the ESB Financial Corporation Directors’ Retirement Plan and entered into director retirement agreements with each director of the Company and the Bank. The plan provides that any retiring director with a minimum of five or more years of service with the Company or the Bank and a minimum of 10 total years of service, including years of service with any bank acquired by the Company or the Bank, that remains in continuous service as a board member until age 75 will be entitled to receive an annual retirement benefit equal to his or her director’s fees earned during the last full calendar year prior to his or her retirement date, multiplied by a ratio, ranging from 25% to 80%, based on the director’s total years of service. The maximum ratio of 80% of fees requires 20 or more years of service and the minimum ratio of 25% of fees requires 10 years of service. Retirement benefits may also be payable under the plan if a director retires from service as a director prior to attaining age 75. During 2013, three directors received monthly benefits under the plan.
The following table sets forth the obligation and funded status as of December 31, 2013 and 2012:
(Dollar amounts in thousands)	Directors’ Retirement Plan								SERP
		2013			2012					2013				2012
Change in benefit obligation
Benefit obligation at beginning of year	$	827		$	829				$	2,960			$	2,678
Service Cost		4			6					99				81
Interest Cost		29			34					112				120
Actuarial losses		8			30					(93	)			166
Benefits paid		(41	)		(72	)				(85	)			(85	)
Benefit obligation at end of year		827			827					2,993				2,960
Change in plan assets
Fair value of plan assets at beginning of year		-			-					-				-
Employer contributions		41			72					85				85
Benefits paid		(41	)		(72	)				(85	)			(85	)
Fair value of plan assets at end of year		-			-					-				-
Funded Status	$	(827	)	$	(827	)			$	(2,993	)		$	(2,960	)
Amounts recognized in accumulated other comprehensive income, net consist of:
Net loss	$	61		$	56				$	335			$	465
Prior service cost		-			-					-				-
Transition obligation		-			-					81				108
Total	$	61		$	56				$	416			$	573
The accumulated benefit obligation for the director’s retirement plan was $777,000 and $793,000 at December 31, 2013 and 2012, respectively and for the SERP were $2.7 million and $2.7 million at December 31, 2013 and 2012, respectively.
The components of net periodic benefit cost and other amounts recognized in AOCI at December 31, 2013, 2012 and 2011 are as follows:
(Dollar amounts in thousands)	Directors’ Retirement Plan												SERP
		2013			2012			2011						2013				2012				2011
Net Periodic Pension Cost
Service cost	$	4		$	6		$	5					$	99			$	81			$	64
Interest cost		29			34			41						112				120				123
Amortization of transition obligation		-			-			-						41				41				41
Amortization of net loss		-			-			-						105				81				55
Amortization of prior service cost		-			33			87						-				-				-
Net periodic pension cost	$	33		$	73		$	133					$	357			$	323			$	283
Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive income (loss)
Net actuarial loss/ (gain)	$	5		$	(7	)	$	11					$	(128	)		$	51			$	101
Amortization of transition obligation		-			-			-						(27	)			(29	)			(27	)
Amortization of prior service cost		-			(22	)		(57	)					-				-				-
Total recognized in other comprehensive income	$	5		$	(29	)	$	(46	)				$	(155	)		$	22			$	74
The estimated net loss, transition obligation and prior service cost for the director’s retirement plan and SERP plans that will be amortized from AOCI into net periodic benefit cost over the next fiscal year are approximately $1,000 and $86,000, respectively.
The weighted average assumptions used to determine benefit obligations and net periodic pension cost at the measurement dates were as follows:
	Directors’ Retirement Plan					SERP
	2013		2012			2013	2012
Discount rate	4.75%		4.50%			4.25%	4.13%
Rate of compensation increase	4.00%		2.50%			4.00%	4.00%
At December 31, 2013, the projected benefit payments for the director’s retirement plan were $128,000, $134,000, $134,000, $135,000, $136,000 and $172,000 for years 2014, 2015, 2016, 2017, 2018 and thereafter, respectively. At December 31, 2013, the projected benefit payments for the SERP were $85,000, $85,000, $85,000, $290,000, $245,000 and $4.6 million for years 2014, 2015, 2016, 2017, 2018 and thereafter. The projected payments were calculated using the same assumptions as those used to calculate the benefit obligations listed above.

Other_Comprehensive_Income_los

Other Comprehensive Income (loss)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Other Comprehensive Income (loss)	'
	10	Other Comprehensive Income (loss)
	The components of AOCI, net of tax as of year-end were as follows:
	(Dollar amounts in thousands)
	Details about AOCI Components	2013			2012			2011			in the Statement where net
											income is presented
	Available-for-sale securities
	Realized gain on sale of securities	$	(898	)	$	(746	)	$	(937	)	Net realized gain on securities
	Impairment losses on investment securities		310			31			447		Non-interest income
			(588	)		(715	)		(490	)	Total before tax
											available for sale
			206			250			167		Provision for income tax expense
			(382	)		(465	)		(323	)	Net of tax
	Defined benefit pension plan items
	Amortization of transition obligations		41			41			41		See Note 1 below
	Amortization of prior service costs		-			33			87		See Note 1 below
	Amortization of actuarial gains/(losses)		105			81			55		See Note 1 below
			146			155			183		Total before tax
			(51	)		(54	)		(64	)	Provision for income tax expense
			95			101			119		Net of tax
	Total reclassifications	$	(287	)	$	(364	)	$	(204	)	Net of tax
	Note 1: These items are included in the compensation and employee benefits. See Note 8, Retirement Plans, for additional information.
	(Dollar amounts in thousands)	Gains/(losses)			Unrealized			Defined			Total
		on Cash Flow			gains/(losses) on			benefit pension
		Hedges			available-for-sale			plan items
					securities
	Balance at January 1, 2011	$	(1,886	)	$	17,794		$	(574	)	$	15,334
	Other comprehensive income/(loss) before reclassification		(1,709	)		7,631			(147	)		5,775
	Amounts reclassified from AOCI		-			(323	)		119			(204	)
	Balance at December 31, 2011		(3,595	)		25,102			(602	)		20,905
	Other comprehensive income/(loss) before reclassification		(138	)		4,827			(127	)		4,562
	Amounts reclassified from AOCI		-			(465	)		101			(364	)
	Balance at December 31, 2012		(3,733	)		29,464			(628	)		25,103
	Other comprehensive income/(loss) before reclassification		1,218			(21,474	)		55			(20,201	)
	Amounts reclassified from AOCI		-			(382	)		95			(287	)
	Balance at December 31, 2013	$	(2,515	)	$	7,608		$	(478	)	$	4,615

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	11	Commitments and Contingencies
	In the ordinary course of business, the Company has various outstanding commitments and contingent liabilities that are not reflected in the accompanying consolidated financial statements. In addition, the Company is involved in certain claims and legal actions arising in the ordinary course of business. The outcome of these claims and actions are not presently determinable; however, in the opinion of the Company’s management, after consulting legal counsel, the ultimate disposition of these matters will not have a material adverse effect on the Company’s financial position. The following table presents the notional amount of the Company’s off-balance sheet financial instruments as of December 31, 2013 and 2012:
	(Dollar amounts in thousands)	2013		2012
	Loans in process and commitments:
	Fixed interest rate	$	18,551	$	18,732
	Variable interest rate		11,671		13,617
	Lines of credit (unfunded):
	Commercial		29,009		21,544
	Consumer		50,002		51,375
	Letters of credit:
	Standby		2,903		15,423
	Interest Rate Cap Contracts		230,000		170,000
	Interest Rate Swap Contracts		35,000		35,000
	Commitments to extend credit involve, to a varying degree, elements of credit and interest rate risk in excess of amounts recognized in the consolidated statement of financial condition. The Company’s exposure to credit loss in the event of non-performance by the other party for commitments to extend credit is represented by the contractual amount of these commitments, less any collateral value obtained. The Company uses the same credit policies in making commitments as for on-balance sheet instruments.
	The Company’s distribution of commitments to extend credit approximates the distribution of loans receivable outstanding. The fair value of the off balance sheet items approximated the carrying value of those items at those dates.

Fair_Value

Fair Value	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value	'
	12		Fair Value
	The following disclosures show the hierarchal disclosure framework associated with the level of pricing observations utilized in measuring assets and liabilities at fair value. The three broad levels defined by U.S. generally accepted accounting principles are as follows:
	Level I:		Quoted prices are available in the active markets for identical assets or liabilities as of the reported date.
	Level II:		Pricing inputs are other than quoted prices in active markets, which are either directly or indirectly observable as of the reported date. The nature of these assets and liabilities include items for which quoted prices are available but traded less frequently and items that are fair valued using other financial instruments, the parameters of which can be directly observed.
	Level III:		Assets and liabilities that have little to no pricing observability as of the reported date. These items do not have two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation.
	The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair value on a recurring basis as of December 31, 2013 and 2012 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
			As of December 31, 2013
	(Dollar amounts in thousands)
			Quoted Prices			Significant Other			Significant			Total
			in Active			Observable			Unobservable
			Markets for			Inputs (Level II)			Inputs
			Identical						(Level III)
			Assets  or
			Liabilities
			(Level I)
	Assets:
	Securities available for sale:
	Trust preferred securities		$	-		$	1,697		$	37,209		$	38,906
	Municipal securities			-			179,740			-			179,740
	Equity securities			1,921			-			-			1,921
	Corporate bonds			-			206,220			-			206,220
	Mortgage backed securities
	U.S. sponsored entities			-			634,424			-			634,424
	Private label			-			1,805			-			1,805
	Subtotal mortgage-backed securities			-			636,229			-			636,229
	Total securities available for sale		$	1,921		$	1,023,886		$	37,209		$	1,063,016
	Other Assets
	Interest rate caps			-			717			-			717
	Total other assets		$	-		$	717		$	-		$	717
	Liabilities:
	Other Liabilties
	Interest rate swaps			-			3,870			-			3,870
	Total other liabilities		$	-		$	3,870		$	-		$	3,870
			As of December 31, 2012
	(Dollar amounts in thousands)
			Quoted Prices			Significant Other			Significant			Total
			in Active			Observable			Unobservable
			Markets for			Inputs (Level II)			Inputs
			Identical						(Level III)
			Assets or
			Liabilities
			(Level I)
	Assets:
	Securities available for sale:
	Trust preferred securities		$	-		$	1,848		$	36,179		$	38,027
	Municipal securities			-			190,887			-			190,887
	Equity securities			1,818			-			-			1,818
	Corporate bonds			-			225,795			-			225,795
	Mortgage backed securities
	U.S. sponsored entities			-			649,933			-			649,933
	Private label			-			4,316			-			4,316
	Subtotal mortgage-backed securities			-			654,249			-			654,249
	Total securities available for sale		$	1,818		$	1,072,779		$	36,179		$	1,110,776
	Other Assets
	Interest rate caps			-			90			-			90
	Total other assets		$	-		$	90		$	-		$	90
	Liabilities:
	Other Liabilties
	Interest rate swaps			-			5,743			-			5,743
	Total other liabilities		$	-		$	5,743		$	-		$	5,743
	Due to recent uncertainties in the credit markets broadly and the lack of both trading and new issuance of floating rate trust preferred securities, market price indications generally reflect the lack of liquidity in these markets. Due to this lack of practical quoted prices, fair value for floating rate trust preferred securities has been determined using a discounted cash-flow technique. Cash flows are estimated based upon the contractual terms of each instrument. Market rates have been calculated based upon the five year historical discount margin for these instruments from August 2002 through August 2007, when the market was more liquid. These market rates were then adjusted for credit spreads and liquidity risk given the current markets. Credit spreads are based upon the Moody’s rating for each bond and range from 40 to 70 basis points. Liquidity risk adjustments ranged from 20 to 55 basis points where the securities of the 15 largest banks in the United States are assigned 20 to 40 basis points and banks outside of the top 15 were given a higher liquidity risk adjustment. Approximately $18.3 million or 49.2% of the $37.2 million in floating rate trust preferred securities represent investments in two of the four largest banks in the United States.
	The following table presents the changes in the Level III fair-value category for the years ended December 31, 2013 and 2012. The Company classifies financial instruments in Level III of the fair-value hierarchy when there is reliance on at least one significant unobservable input to the valuation model. In addition to these unobservable inputs, the valuation models for Level III financial instruments typically also rely on a number of inputs that are readily observable either directly or indirectly.
	Fair value measurements using significant unobservable inputs (Level III):
		Securites available for sale
		2013			2012
Beginning balance January 1,		$	36,179		$	35,789
Total net realized/unrealized gains (losses)
Included in earnings:
Interest income on securities			14			14
Net realized loss on securities available for sale			(310	)		(5	)
Included in other comprehensive income			1,326			381
Transfers in and/or out of Level III			-			-
Purchases, issuances, sales and settlements
Purchases			-			-
Issuances			-			-
Sales			-			-
Settlements			-			-
Ending balance, December 31,		$	37,209		$	36,179
The following table summarizes changes in unrealized gains and losses recorded in earnings for the year ended December 31, 2013 and December 31, 2012, for Level III assets and liabilities that were still held at December 31, 2013 and 2012:
		Securites available for sale
		2013			2012
Interest income on securities		$	14		$	14
Net realized loss on securities available for sale			(310	)		(5	)
Total		$	(296	)	$	9
For Level III assets measured at fair value on a recurring or non-recurring basis as of December 31, 2013, the significant observable inputs used in the fair value measurements were as follows:
(Dollar amounts in thousands)		Fair Value at			Fair Value at		Valuation	Significant		2013 Range	2012 Range
		December 31,			December 31,		Technique	Unobservable		(Weighted	(Weighted
		2013			2012			Inputs		Average)	Average)
Trust Preferred Securities		$	37,209		$36,179		Discounted	Credit Spreads		45-70 (57.5)	45-80 (66.1)
							Cash Flow			basis points	basis points
								Liquidity Risk		20-55 (36)	20-65 (38)
								Adjustments		basis points	basis points
								Default Rates		.6% - 1%	.6% - 1%
Impaired Loans			15,961		14,740		Appraisal of	Appraisal value		2.84% - 48.93%	0.64% - 48.93%
							collateral (1)	and liquidation		-9.95%	-9.98%
								expense
Real estate acquired through foreclosure			1,977		2,441		Appraisal of	N/A		N/A	N/A
							collateral (1)
Servicing assets			9		14		Discounted	Remaining term		1.25 yrs to 16.9	0.2 yrs to 18.8
							Cash Flow			yrs (12.5 yrs)	yrs (13.5 yrs)
								Discount Rate		11.25% - 12.25%	11.25% - 12.25%
										-11.36%	-11.51%
	-1	Fair value is generally determined through independent appraisals of the underlying collateral, which generally includes various level III inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.
The significant unobservable inputs in the fair value measurement of the Company’s trust preferred securities are the credit spreads, liquidity risk adjustments and default rates as described in Investment Securities Available for Sale. Significant increases (decreases) in any of those inputs in isolation could result in a significantly lower (higher) fair value measurement.
The Company may be required periodically to measure certain assets and liabilities at fair value on a nonrecurring basis in accordance with GAAP. These adjustments to fair value usually result from the application of lower-of-cost-or-fair value accounting or impairment write-downs of individual assets. During 2013 and 2012, the Company incurred write-downs on its REO properties of $24,000 and $370,000, respectively. There were no adjustments to the fair value of the Company’s remaining assets and liabilities measured at fair value on a nonrecurring basis in accordance with GAAP during the respective periods.

Financial_Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2013
Investments All Other Investments [Abstract]	'
Financial Instruments	'
	13	Financial Instruments
	In the ordinary course of business, the Company has entered into off-balance sheet financial instruments, consisting of commitments to extend credit, commitments under line of credit lending arrangements and letters of credit. Such financial instruments are recorded in the financial statements when they are funded or related fees are received.
	The following methods and assumptions were used in estimating fair values of financial instruments.
	Cash and cash equivalents – The carrying amounts of cash equivalents approximate their fair values.
	Securities available for sale – With the exception of floating rate trust preferred securities, fair values for securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges or matrix pricing, which is a mathematical technique which is 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. The determination of the fair value of the trust preferred securities is discussed more fully in footnote 12, Fair Value
	Securities receivable – The carrying amount of securities receivable approximates their fair values.
	Loans receivable – Fair values for loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Fair values of impaired loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable.
	Accrued interest receivable and payable – The carrying amounts of accrued interest approximate their fair values.
	FHLB stock – FHLB stock is restricted from trading purposes and thus, the carrying value approximates its fair value.
	Bank owned life insurance (BOLI) – The fair value of BOLI at December 31, 2013 and December 31, 2012 approximated the cash surrender value of the policies at those dates.
	Interest rate cap and interest rate swap contracts – Fair values of interest rate cap and interest rate swap contracts are based on dealer quotes.
	Deposits – The fair values disclosed for demand deposits are, by definition, equal to the amount payable on demand at the reporting date. Fair values for certificates of deposit are estimated using a discounted cash flow calculation that applies current market interest rates to a schedule of aggregated expected monthly maturities.
	Borrowed funds and subordinated debt – For variable rate borrowings, fair values are based on carrying values. For fixed rate borrowings, fair values are based on the discounted value of contractual cash flows and on the Company’s current incremental borrowing rates for similar types of borrowing arrangements. Fair values of structured borrowings are based on dealer quotes.
	Advance payments by borrowers for taxes and insurance – The fair value of the advance payments by borrowers for taxes and insurance approximated the carrying value of those commitments at those dates.
	The following table sets forth the carrying amount and fair value of the Company’s financial instruments included in the consolidated statement of financial condition as of December 31:
	As of December 31, 2013
	(Dollar amounts in thousands)
		Carrying Amount		Quoted Prices		Significant		Significant		Total Fair
				in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level III)
				or Liabilities		(Level II)
				(Level I)
	Financial assets:
	Cash and cash equivalents	$	16,214	$	16,214	$	-	$	-	$	16,214
	Securities		1,063,016		1,921		1,023,886		37,209		1,063,016
	Securities receivable		654		654		-		-		654
	Loans receivable		695,636		-		-		707,919		707,919
	Accrued interest receivable		7,345		7,345		-		-		7,345
	FHLB stock		15,436		15,436		-		-		15,436
	Bank owned life insurance		30,595		30,595		-		-		30,595
	Interest rate cap contracts		717		-		717		-		717
	Financial liabilities:
	Deposits		1,222,767		577,040		-		652,395		1,229,435
	Borrowed funds		441,144		-		151,942		303,436		455,378
	Junior subordinated notes		36,083		-		25,258		-		25,258
	Advance payment by borrowers for taxes and insurance		2,659		2,659		-		-		2,659
	Accrued interest payable		1,046		1,046		-		-		1,046
	Interest rate swap contracts		3,870		-		3,870		-		3,870
	As of December 31, 2012
	(Dollar amounts in thousands)
		Carrying		Quoted Prices		Significant		Significant		Total Fair
		Amount		in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level III)
				or Liabilities		(Levell II)
				(Level I)
	Financial assets:
	Cash and cash equivalents	$	15,064	$	15,064	$	-	$	-	$	15,064
	Securities		1,110,776		1,818		1,072,779		36,179		1,110,776
	Securities receivable		1,277		1,277		-		-		1,277
	Loans receivable		672,086		-		-		702,206		702,206
	Accrued interest receivable		8,068		8,068		-		-		8,068
	FHLB stock		15,077		15,077		-		-		15,077
	Bank owned life insurance		30,025		30,025		-		-		30,025
	Interest rate cap contracts		90		-		90		-		90
	Financial liabilities:
	Deposits		1,178,057		546,298		-		641,430		1,187,728
	Borrowed funds		484,556		-		260,333		249,550		509,883
	Junior subordinated notes		46,393		-		25,001		-		25,001
	Advance payment by borrowers for taxes and insurance		2,619		2,619		-		-		2,619
	Accrued interest payable		1,344		1,344		-		-		1,344
	Interest rate swap contracts		5,743		-		5,743		-		5,743

Regulatory_Matters_and_Insuran

Regulatory Matters and Insurance of Accounts	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Regulatory Matters and Insurance of Accounts	'
	14	Regulatory Matters and Insurance of Accounts
	The Company’s subsidiary bank, ESB Bank, is subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements could result in certain mandatory – and possibly additional discretionary – actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and their related classification for the Bank are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy requires the Bank to maintain minimum amounts and ratios (set forth in the table below) of total capital (as defined in the regulations), tier 1 leverage capital (as defined) and tier 1 risk-based capital (as defined). As of December 31, 2013, the Bank met all capital adequacy requirements to which it is subject.
	As of December 31, 2013 and 2012, the most recent notification from the FDIC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain minimum total, tier 1 leverage and tier 1 risk-based capital ratios as set forth in the following table. As of December 31, 2013, there are no conditions or events since that notification that have changed the categorization.
	Tier 1 leverage capital level in the following table is presented as a percentage of total adjusted assets (as defined in the regulations); total capital and tier 1 risk based capital levels are shown as a percentage of risk-weighted assets (as defined).
	The minimum required regulatory capital percentages to be well capitalized under prompt corrective action provisions is 5%, 6% and 10% for tier 1 leverage, tier I risk-based and total capital ratios, respectively.
	The following table sets forth certain information concerning regulatory capital of the Bank:
	(Dollar amounts in thousands)	Actual					For Capital Adequacy					To Be Well
							Purposes:					Capitalized Under
												Prompt Corrective
												Action Provisions:
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	As of December 31, 2013:
	Total Capital	$	171,660		15.94	%	$	86,170		8	%	$	107,713		10	%
	(to Risk Weighted Assets)
	Tier 1 Leverage Capital	$	164,710		9.11	%	$	72,305		4	%	$	90,381		5	%
	(to Adjusted Tangible Assets)
	Tier 1 Risk Based Capital	$	164,710		15.29	%	$	43,085		4	%	$	64,628		6	%
	(to Risk Weighted Assets)
	As of December 31, 2012:
	Total Capital	$	164,082		15.21	%	$	86,309		8	%	$	107,886		10	%
	(to Risk Weighted Assets)
	Tier 1 Leverage Capital	$	157,313		8.7	%	$	72,355		4	%	$	90,444		5	%
	(to Adjusted Tangible Assets)
	Tier 1 Risk Based Capital	$	157,313		14.58	%	$	43,154		4	%	$	64,732		6	%
	(to Risk Weighted Assets)

Quarterly_Financial_Data_unaud

Quarterly Financial Data (unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Financial Data (unaudited)	'
	15	Quarterly Financial Data (unaudited)
	Quarterly earnings per share data may vary from annual earnings due to rounding.
	(Dollar amounts in thousands, except share data)	First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
	2013:00:00
	Interest income	$	16,427	$	16,008	$	16,078	$	16,243
	Interest expense		6,176		5,493		5,246		5,062
	Net interest income		10,251		10,515		10,832		11,181
	Provision for loan losses		150		75		75		200
	Net interest income after provision for loan losses		10,101		10,440		10,757		10,981
	Net realized gain on securities available for sale		268		198		58		374
	Other noninterest income		1,645		1,698		1,559		971
	Noninterest expense		7,213		7,454		7,500		7,689
	Income before provision for income taxes		4,801		4,882		4,874		4,637
	Provision for income taxes		811		956		763		810
	Net income before noncontrolling interest		3,990		3,926		4,111		3,827
	Less: net income attributable to the noncontrolling interest		276		50		140		44
	Net income attributable to ESB Financial Corporation	$	3,714	$	3,876	$	3,971	$	3,783
	Net income per share
	Basic	$	0.21	$	0.22	$	0.23	$	0.22
	Diluted	$	0.21	$	0.22	$	0.23	$	0.21
	2012:00:00
	Interest income	$	18,870	$	18,590	$	17,943	$	17,109
	Interest expense		7,873		7,581		7,168		6,778
	Net interest income		10,997		11,009		10,775		10,331
	Provision for loan losses		200		300		350		250
	Net interest income after provision for loan losses		10,797		10,709		10,425		10,081
	Net realized gain on securities available for sale		267		-		197		282
	Other noninterest income		1,456		1,538		1,440		2,144
	Noninterest expense		7,722		7,491		7,248		7,817
	Income before provision for income taxes		4,798		4,756		4,814		4,690
	Provision for income taxes		845		799		793		799
	Net income before noncontrolling interest		3,953		3,957		4,021		3,891
	Less: net income attributable to the noncontrolling interest		168		276		87		388
	Net income attributable to ESB Financial Corporation	$	3,785	$	3,681	$	3,934	$	3,503
	Net income per share
	Basic	$	0.22	$	0.22	$	0.23	$	0.21
	Diluted	$	0.22	$	0.21	$	0.23	$	0.21

ESB_Financial_Corporation_Cond

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
ESB Financial Corporation - Condensed Financial Statements (Parent Company Only)	'
	16	ESB Financial Corporation – Condensed Financial Statements (Parent Company Only)
	Following are condensed financial statements for the parent company as of and for the years ended December 31, 2013 and 2012:
	Condensed Statements of Financial Condition
	(Dollar amounts in thousands)			2013				2012
	Assets:
	Interest-earning deposits			$	5,741			$	1,091
	Securities available for sale				34,273				34,889
	Equity in net assets of subsidiaries				213,613				227,695
	Other assets				6,004				5,969
	Total assets			$	259,631			$	269,644
	Liabilities and stockholders’ equity:
	Subordinated debt, net			$	36,083			$	46,393
	Accrued expenses and other liabilities				36,546				27,553
	Stockholders’ equity				187,002				195,698
	Total liabilities and stockholders’ equity			$	259,631			$	269,644
	Condensed Statements of Operations
	(Dollar amounts in thousands)	2013				2012				2011
	Income:
	Equity in undistributed earnings of subsidiaries	$	7,007			$	6,356			$	1,664
	Dividends from subsidiaries		10,000				10,000				15,000
	Management fee income, from subsidiaries		48				48				36
	Net gain on sale of securities available for sale		256				629				141
	Other than temporary impairment losses on securities available for sale		-				(26	)			(317	)
	Interest and other income		928				1,126				1,365
	Total income		18,239				18,133				17,889
	Expense:
	Interest expense, to subsidiary		2,753				2,957				3,257
	Compensation and employee benefits		807				632				432
	Other		656				657				445
	Total expense		4,216				4,246				4,134
	Income before benefit from income taxes		14,023				13,887				13,755
	Benefit from income taxes		(1,321	)			(1,016	)			(1,155	)
	Net income	$	15,344			$	14,903			$	14,910
	Condensed Statements of Comprehensive Income
	(Dollar amounts in thousands)	2013				2012				2011
	Net Income before noncontrolling interest	$	15,854			$	15,822			$	15,821
	Other comprehensive income (loss) (net of tax and reclassifications)
	Net change in unrealized gains (losses):
	Gains (losses) arising during the period		(889	)			741				368
	Income tax effect		311				(259	)			(129	)
			(578	)			482				239
	Gains recognized in earnings		(256	)			(629	)			(141	)
	Income tax effect		90				221				49
			(166	)			(408	)			(92	)
	Unrealized holding gains (losses) on securities available for sale not other-than-temporarily-impaired, net of tax		(744	)			74				147
	Fair value adjustment on derivatives		1,873				(211	)			(2,631	)
	Income tax effect		(655	)			74				921
			1,218				(137	)			(1,710	)
	Other comprehensive income (loss) of bank subsidiary		(20,962	)			4,262				7,133
	Total comprehensive income (loss), net of tax		(20,488	)			4,199				5,570
	Net comprehensive income (loss) before noncontrolling interest		(4,634	)			20,021				21,391
	Less: net income attributable to the noncontrolling interest		510				919				911
	Net comprehensive income (loss) attributable to ESB Financial Corporation	$	(5,144	)		$	19,102			$	20,480
	Condensed Statements of Cash Flows
	(Dollar amounts in thousands)	2013				2012				2011
	Operating activities:
	Net income	$	15,344			$	14,903			$	14,910
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed earnings of subsidiaries		(7,007	)			(6,356	)			(1,664	)
	Net realized gain on securities available for sale		(256	)			(629	)			(141	)
	Other than temporary impairment losses on securities available for sale		-				26				317
	Compensation expense on ESOP and MRP		1,823				1,602				1,445
	Other, net		928				1,148				(2,190	)
Net cash provided by operating activities		10,832				10,694				12,677
Investing activities:
Purchases of securities		(9,533	)			(14,411	)			(6,733	)
Principal repayments of securities		8,652				9,405				7,698
Proceeds from the sale of securities available for sale		449				1,342				204
Net cash (used in) provided by investing activities		(432	)			(3,664	)			1,169
Financing activities:
Redemption of junior subordinated notes		(10,310	)			-				-
Proceeds from long term borrowings		10,000				-				-
Repayments of long term borrowings		(1,000	)			(5,200	)			-
Proceeds received from exercise of stock options		1,603				794				832
Dividends paid		(4,999	)			(7,321	)			(5,409	)
Payments to acquire treasury stock		(619	)			(541	)			(4,754	)
Stock purchased by ESOP		(425	)			(329	)			(504	)
Net cash used in financing activities		(5,750	)			(12,597	)			(9,835	)
(Decrease) increase in cash equivalents		4,650				(5,567	)			4,011
Cash equivalents at beginning of period		1,091				6,658				2,647
Cash equivalents at end of period	$	5,741			$	1,091			$	6,658

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

'

Principles of Consolidation

'

Principles of Consolidation

ESB Financial Corporation (the Company) is a publicly traded Pennsylvania thrift holding company. The consolidated financial statements include the accounts of the Company and its direct and indirect wholly owned subsidiaries, ESB Bank (ESB or the Bank), THF, Inc. (THF), AMSCO, Inc. (AMSCO) and ESB Financial Services, Inc. ESB is a Pennsylvania chartered Federal Deposit Insurance Corporation (FDIC) insured stock savings bank.

AMSCO is engaged in real estate development and construction of 1-4 family residential units independently or in conjunction with its joint ventures. The Bank has provided all development and construction financing. The joint ventures which are 51% owned or greater by AMSCO have been included in the consolidated financial statements and are reflected within other noninterest income or expense. The Bank’s loans to AMSCO and related interest have been eliminated in consolidation.

In addition to the elimination of the loans and interest to the joint ventures described above, all other significant intercompany transactions and balances have been eliminated in consolidation.

Basis of Presentation

'

Basis of Presentation

The preparation of financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make some estimates and assumptions that affect the reported amounts in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Certain amounts previously reported have been reclassified to conform to the current year financial statement presentation. The reclassification had no effect on net income.

Operating Segments

'

Operating Segments

An operating segment is defined as a component of an enterprise that engages in business activities that generate revenue and incur expense, the operating results of which are reviewed by management and for which discrete financial information is available. The Company conducts business through 23 full service banking branches, one loan production office and its various other subsidiaries. Loans and deposits are primarily generated from the areas where banking branches are located. The Company derives its income predominantly from interest on loans and securities and to a lesser extent, noninterest income. The Company’s principal expenses are interest paid on deposits and borrowed funds and normal operating costs. The Company’s operations are principally in the savings and loan industry. Consistent with internal reporting, the Company’s operations are reported in one operating segment, which is community banking.

Cash Equivalents

'

Cash Equivalents

Cash equivalents include cash on hand and in banks, interest-earning deposits with original maturities of 120 days or less and federal funds sold. The Board of Governors of the Federal Reserve imposes certain reserve requirements on all depository institutions. These reserves are maintained in the form of vault cash or as a noninterest bearing balance with the Federal Reserve Bank. Required reserves at the Federal Reserve Bank averaged $589,000 and $1.0 million during the year 2013 and 2012, respectively.

Securities Available for Sale and Held for Maturity

'

Securities Available for Sale and Held for Maturity

Securities include investments primarily in bonds, notes and to a lesser extent equity securities and are classified as either available for sale or held to maturity at the time of purchase based on management’s intent. Such intent includes consideration of the interest rate environment, prepayment risk, credit risk, maturity and repricing characteristics, liquidity considerations, investment and asset/liability management policies and other pertinent factors. Unrealized holding gains and losses, net of applicable income taxes, on available for sale securities are reported as accumulated other comprehensive income (AOCI) until realized. Gains and losses on the sale of securities are determined using the specific identification method and are included in operations in the period sold.

Management monitors all of the Company’s securities for other than temporary impairment (OTTI) on a quarterly basis and determines whether any impairment should be recorded. For a security to be considered OTTI, its characteristics would have to consist of an accumulation of these factors:

•

Fair value is significantly below cost

•

Decline in fair value is attributable to specific adverse conditions affecting a particular investment, specific conditions in an industry or geographic area

•

Management does not possess both the intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in fair value

•

The decline in fair value has existed for an extended period of time

•

Debt security has been downgraded by a rating agency

•

Rating differences

•

Financial condition of the issuer has deteriorated and the issuer has reduced or eliminated scheduled dividends or interest payments

•

SEC filings – disclosures that would indicate an inability by the issuer to satisfy their obligations

•

Audits – the Company will review the issuer’s audits to determine if they have received going concern audit opinions

•

Other debt of the issuers – the Company will review the market prices of other debt of the issuer to determine if the market loss of an issue is related to credit or interest rate risk

Management will more closely evaluate the securities that have unrealized losses of 15% or more. If management determines that the declines in value of the security are not temporary, or if management does not have the ability to hold the security until maturity, which is the case with equity securities, then management will record impairment on the security. For equity securities, typically the amount of impairment is the difference between the security’s book value and current fair value determined by independent market pricing. For debt securities evaluated for impairment, management will determine what portion of the unrealized valuation loss is attributed to projected or known loss of principal, and what portion is attributed to market pricing not reflective of the true value of the security, based on current cash flow analysis. Management will generally record impairment equivalent to the projected or known loss of principal, known as the credit loss. The other portion of the fair value loss is attributed to market factors and it is management’s opinion that these fair value losses are temporary and not permanent. All impairment is recorded as a loss on securities and is included in the Company’s consolidated statements of operations.

Yields and carrying values for certain mortgage-backed securities are subject to normal interest rate and prepayment risks. Premiums and discounts on securities are recognized in interest income using the interest method over the period to maturity.

Loans Receivable

'

Loans Receivable

Loans receivable, for which management has the intent and the Company has the ability to hold for the foreseeable future or until maturity or payoff, are reported at their outstanding unpaid principal balances reduced by any charge-offs and net of any deferred fees or costs on loans originated, unamortized premiums or discounts on loans purchased and the allowance for loan losses.

Interest income on loans is accrued and credited to operations as earned. Interest income is not accrued for loans delinquent 90 days or greater. Interest on impaired loans is discontinued when, in management’s opinion, the borrower may be unable to meet contractual payments. When interest accrual is discontinued, all unpaid accrued interest is reversed. Interest receipts on nonaccrual and impaired loans are recognized as interest revenue or applied to principal when management believes the ultimate collectibility of principal is in doubt.

The Company maintains records of the full amount of interest that is owed by the borrowers. A non-accrual loan will generally be placed back on accrual status only when the delinquency is less than 90 days.

Discounts and premiums on purchased loans are recognized in interest income using the interest method over the remaining period to contractual maturity, adjusted for prepayments. Loan origination fees and certain direct origination costs are capitalized and recognized as an adjustment to the yield of the related loan over the loan’s period to maturity. Loans originated and intended for sale are carried at the lower of cost or fair value in the aggregate.

Impaired loans are commercial, multi-family, residential real estate construction and commercial real estate loans for which it is probable the Company will not be able to collect all amounts due according to the contractual terms of the loan agreement. The Company individually evaluates such loans for impairment and does not aggregate loans by major risk classifications. The definition of impaired loans is not the same as the definition of nonaccrual loans, although the two categories overlap. The Company may choose to place a loan on nonaccrual status due to payment delinquency or uncertain collectibility, while not classifying the loan as impaired. Factors considered by management in determining impairment include payment status and collateral value. The amount of impairment for these types of impaired loans is determined by the difference between the present value of the expected cash flows related to the loan, using current interest rates and its recorded value, or, as a practical expedient in the case of collateralized loans, the difference between the fair value of the collateral and the recorded amount of the loans. When the loan balance becomes collateral dependent, impairment is measured based on the fair value of the collateral.

Mortgage loans on one-to four family properties and all consumer loans are large groups of smaller balance homogeneous loans and are measured for impairment collectively. Loans that experience insignificant payment delays, which are defined as less than 90 days, generally are not classified as impaired. Management determines the significance of payment delays on a case-by-case basis, taking into consideration all circumstances surrounding the loan and the borrower including the length of the delay, the borrower’s prior payment record and the amount of shortfall in relation to the principal and interest owed.

Allowance for Loan Losses

'

Allowance for loan losses

Management establishes the allowance for loan losses based upon its evaluation of the pertinent factors underlying the types and quality of loans in the portfolio. Commercial loans and commercial real estate loans are reviewed on a regular basis with a focus on larger loans along with loans which have experienced past payment or financial deficiencies. Larger commercial loans, multi-family, residential real estate construction and commercial real estate loans which are 60 days or more past due are selected for impairment testing. These loans are analyzed to determine if they are “impaired”, which means that it is probable that all amounts will not be collected according to the contractual terms of the loan agreement. All loans that are delinquent 90 days and are placed on nonaccrual status are classified on an individual basis. Residential loans 60 days past due, which are still accruing interest are classified as substandard as per the Company’s asset classification policy. The remaining loans are evaluated and classified as groups of loans with similar risk characteristics. The Company allocates allowances based on the factors described below, which conform to the Company’s asset classification policy. In reviewing risk within the Bank’s loan portfolio, management has determined there to be several different risk categories within the loan portfolio. The allowance for loan losses consists of amounts applicable to: (i) the commercial loan portfolio; (ii) the commercial real estate portfolio; (iii) the consumer loan portfolio; (iv) the residential real estate portfolio. Factors considered in this process included general loan terms, collateral and availability of historical data to support the analysis. Historical loss percentages for each risk category are calculated and used as the basis for calculating allowance allocations. Certain qualitative factors are then added to the historical loss percentages to get the adjusted factor to be applied to non classified loans. The following qualitative factors are analyzed:

•

Levels of and trends in delinquencies and nonaccruals

•

Trends in volume and terms

•

Changes in lending policies and procedures

•

Volatility of losses within each risk category

•

Loans and lending staff acquired through acquisition

•

Economic trends

•

Concentrations of credit

•

Experience depth and ability of management

The Company also maintains an unallocated allowance to account for any factors or conditions that may cause a potential loss but are not specifically addressed in the process described above. The Company analyzes its loan portfolio each quarter to determine the appropriateness of its allowance for loan losses.

The allowance for loan losses is maintained at a level believed to be adequate by management to absorb probable losses inherent in the portfolio and is based on the size and current risk characteristics of the loan portfolio, an assessment of individual problem loans and actual loss experience, current economic events in specific industries and other pertinent factors such as regulatory guidance and general economic conditions. Determination of the allowance is inherently subjective as it requires significant estimates, including the amounts and timing of expected future cash flows on impaired loans, estimated losses on pools of homogeneous loans based on historical loss experience and consideration of current economic trends, all of which may be susceptible to significant change. Loan losses are charged off against the allowance, while recoveries of amounts previously charged off are credited to the allowance. A provision for loan losses is charged to operations based on management’s periodic evaluation of the factors previously mentioned, as well as other pertinent factors. Evaluations are conducted quarterly, during which loans may be charged off upon reaching various stages of delinquency and depending upon the loan type.

Loan Charge-off Policies

'

Loan Charge-off Policies

Consumer loans are generally fully or partially charged down to the fair value of collateral securing the asset when the loan is 180 days past due for open-end loans or 120 days past due for closed-end loans unless the loan is well secured and in the process of collection. All other loans are generally charged down to the fair value when the loan is 90 days past due.

Troubled Debt Restructurings

'

Troubled Debt Restructurings

In situations where, for economic or legal reasons related to a borrower’s financial difficulties, management may grant a concession for other than an insignificant period of time to the borrower that would not otherwise be considered, the related loan is classified as a TDR. Management strives to identify borrowers in financial difficulty early and work with them to modify to more affordable terms before their loan reaches nonaccrual status. These modified terms may include rate reductions, principal forgiveness, payment forbearance and other actions intended to minimize the economic loss and to avoid foreclosure or repossession of the collateral. In cases where borrowers are granted new terms that provide for a reduction of either interest or principal, management measures any impairment on the restructuring as noted above for impaired loans. In addition to the allowance for the pooled portfolios, management has developed a separate allowance for loans that are identified as impaired through a TDR. These loans are excluded from pooled loss forecasts and a separate reserve is provided under the accounting guidance for loan impairment. Consumer loans whose terms have been modified in a TDR are also individually analyzed for estimated impairment.

Real Estate Acquired Through Foreclosure

'

Real Estate Acquired Through Foreclosure

Real estate properties acquired through foreclosure are initially recorded at the lower of cost or fair value at the date of foreclosure, establishing a new cost basis. After foreclosure, management periodically performs valuations and the real estate is carried at the lower of cost or fair value less estimated costs to sell. Revenue and expenses from operations of the properties, gains and losses on sales and additions to the valuation allowance are included in operating results.

Federal Home Loan Bank Stock

'

Federal Home Loan Bank Stock

The Bank is a member of the FHLB of Pittsburgh and as such, is required to maintain a minimum investment in FHLB stock that varies with the level of advances outstanding with the FHLB. The stock is bought from and sold to the FHLB based upon its $100 par value. The stock does not have a readily determinable fair value and as such is classified as restricted stock, carried at cost and evaluated for impairment when necessary. The stock’s value is determined by the ultimate recoverability of the par value rather than by recognizing temporary declines. The determination of whether the par value will ultimately be recovered is influenced by criteria such as the following: (a) the significance of the decline in net assets of the FHLB as compared to the capital stock amount and the length of time this situation has persisted (b) commitments by the FHLB to make payments required by law or regulation and the level of such payments in relation to the operating performance (c) the impact of legislative and regulatory changes on the customer base of the FHLB and (d) the liquidity position of the FHLB. There was no impairment of the FHLB stock at December 31, 2013 or 2012.

Premises and Equipment

'

Premises and Equipment

Land is carried at cost. Premises, furniture and equipment and leasehold improvements are carried at cost less accumulated depreciation or amortization. Depreciation is calculated on a straight-line basis over the estimated useful lives of the related assets, which are twenty-five to fifty years for buildings and three to ten years for furniture and equipment. Amortization of leasehold improvements is computed using the straight-line method over the term of the related lease.

Goodwill and Intangible Assets

'

Goodwill and Intangible Assets

Goodwill totaled $41.6 million at December 31, 2013 and 2012, respectively. The Company evaluates goodwill for impairment. This impairment assessment is performed at least annually by assessing various qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. The Company performed this assessment as of October 31, 2013 and concluded that the recorded value of goodwill was not impaired. Core deposit intangible was $118,000 and $288,000 at December 31, 2013 and 2012, respectively. The core deposit intangible asset is amortized on a sum of the year’s digit basis over the estimated useful life, generally up to ten years. Amortization of finite lived assets is expected to total $110,000 and $8,000 for the years 2014 and 2015, respectively.

Mortgage Servicing Assets

'

Mortgage Servicing Assets

At December 31, 2013, the remaining balance and fair value of the servicing asset was $9,000, which is recorded in intangible assets. Servicing assets are amortized in proportion to and over the period of, estimated net servicing revenues. Impairment of servicing assets is based on fair value of those assets, estimated using discounted cash flows and prepayment assumptions for the market area of the servicing portfolio. For purposes of measuring impairment, the servicing asset is stratified based on interest rate. The amount of impairment recognized is the amount by which the capitalized servicing asset for a stratum exceeds the fair value of that stratum. During 2013 the Company recovered a portion of the impairment valuation of approximately $3,000. The remaining impairment valuation at December 31, 2013, 2012 and 2011 was $12,000, $15,000 and $24,000, respectively. The amortization taken on the servicing asset for the year ended December 31, 2013, 2012 and 2011 was $8,000, $10,000 and $14,000, respectively. The Company had total loans serviced for others of $4.3 million, $5.8 million and $10.2 million at December 31, 2013, 2012 and 2011, respectively.

Advertising Costs

'

Advertising Costs

Advertising costs are expensed as the costs are incurred. Advertising expenses amounted to $663,000, $613,000 and $612,000 for 2013, 2012 and 2011, respectively.

Income Taxes

'

Income Taxes

Deferred tax assets and liabilities are reflected at currently enacted income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.

Bank-Owned Life Insurance (BOLI)

'

Bank-Owned Life Insurance (BOLI)

The Company owns insurance on the lives of a certain group of key employees. The policies were purchased to help offset the increases in the costs of various fringe benefit plans including healthcare. The cash surrender value of these policies is included as an asset on the consolidated statements of financial condition and any increases in cash surrender value are recorded as noninterest income on the consolidated statements of operations. In the event of the death of an insured individual under these policies, the Company would receive a death benefit.

Financial Instruments

'

Financial Instruments

As part of its overall interest rate risk management activities, the Company utilizes derivative instruments to manage its exposure to various types of interest rate risk. Interest rate swaps and interest rate caps are the primary instruments the Company uses for interest rate risk management. Derivative instruments are recorded at fair value as either part of prepaid expenses and other assets or accrued expenses and other liabilities on the consolidated statements of financial condition. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.

The Company formally documents the relationship between the hedging instruments and hedged items, as well as the risk management objective and strategy, before undertaking an accounting hedge. To qualify for hedge accounting, the derivatives and related hedged items must be designated as a hedge at inception of the hedge relationship. For accounting hedge relationships, we formally assess, both at the inception of the hedge and on an ongoing basis, if the derivatives are highly effective in offsetting designated changes in the fair value or cash flows of the hedged item. If it is determined that the derivative instrument is not highly effective, hedge accounting is discontinued.

For derivatives designated as fair value hedges, changes in the fair value of the derivative and the hedged item related to the hedged risk are recognized in earnings. To the extent the change in fair value of the derivative does not offset the change in fair value of the hedged item, the difference or ineffectiveness is reflected in earnings in the same financial statement category as the hedged item.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is initially reported in AOCI and subsequently reclassified to earnings when the hedged transaction affects earnings and the ineffective portion of changes in the fair value of the derivative is recognized directly in earnings. The Company assesses the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows of the derivative hedging instrument with the changes in fair value or cash flows of the designated hedged item or transaction. For derivatives not designated as hedges, changes in fair value are recognized in earnings.

At December 31, 2013, there were 22 interest rate cap contracts outstanding with notional amounts totaling $230.0 million. These derivative instruments are not hedged and therefore adjustments to fair value are recorded in current earnings.

During 2009, the Company entered into two interest rate swap contracts to manage its exposure to interest rate risk. These interest rate swap transactions involved the exchange of the Company’s interest payment on $35.0 million in junior subordinated notes which became floating rate notes in 2011 for a fixed rate interest payment without the exchange of the underlying principal amount. Entering into interest rate derivatives potentially exposes the Company to the risk of counterparties’ failure to fulfill their legal obligations including, but not limited to, potential amounts due or payable under each derivative contract. Notional principal amounts are often used to express the volume of these transactions, but the amounts potentially subject to credit risk are much smaller. Management utilizes the change in variable cash flows method to measure hedge ineffectiveness. To the extent that the cumulative change in anticipated cash flows from the hedging derivative offsets from 80% to 125% of the cumulative change in anticipated cash flows from the hedged exposure, the hedged is deemed effective. As of December 31, 2013, the interest rate swaps were deemed to be effective, therefore no amounts were charged to current earnings. The Company also does not expect to reclassify any hedge related amounts from AOCI to earnings over the next twelve months.

The fixed interest rate swap contracts outstanding at December 31, 2013 are being utilized to hedge $35.0 million in floating rate junior subordinated notes. The interest rate swaps are carried at fair value. Below is a summary of the interest rate swap contracts and the terms at December 31, 2013:

(Dollars in thousands)

Notional

Effective

Pay

Receive

Maturity

Unrealized

Amount

Date

Rate

Rate (*)

Date

Loss

Cash Flow Hedge

$

20,000

2/10/11

4.18

%

0.28

%

2/10/18

$

2,306

Cash Flow Hedge

15,000

2/10/11

3.91

%

0.28

%

2/10/18

1,563

$

35,000

$

3,869

* Variable receive rate based upon contract rates in effect at December 31, 2013

Transfers of Financial Assets

'

Transfers of Financial Assets

Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right (free of conditions that constrain it from taking advantage of the right) to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.

Stock-Based Compensation

'

Stock-Based Compensation

The Company accounts for stock compensation based on the grant-date fair value of all share-based payment awards that are expected to vest, including employee share options to be recognized as employee compensation expense over the requisite service period.

During the years ended December 31, 2013, 2012 and 2011, the Company recorded $747,000, $575,000, and $377,000, respectively, in compensation expense and tax benefits of $296,000, $73,000 and $1,000, respectively, related to our share-based compensation awards. As of December 31, 2013, there was approximately $98,000 of unrecognized compensation cost, related to unvested share-based compensation awards granted in 2010, that is expected to be recognized over the next year. There was approximately $163,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2011, that is expected to be recognized over the next two years. There was approximately $111,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2012, that is expected to be recognized over the next year and $243,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2012 that is expected to be recognized over the next three years. Finally, there was approximately $296,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2013 that is expected to be recognized over the next two years and $420,000 of unrecognized compensation cost related to unvested share-based compensation awards granted in 2013 that is expected to be recognized over the next four years. The Company has recorded $45,000, $48,000 and $55,000 in excess tax benefits which have been classified as financing cash inflows for the years ended December 31, 2013, 2012 and 2011, respectively, in the Consolidated Statements of Cash Flows.

For purposes of computing results, the Company estimated the fair values of stock options using the Black-Scholes option-pricing model. The model requires the use of subjective assumptions that can materially affect fair value estimates. The fair value of each option is amortized into compensation expense on a straight line basis between the grant date for the option and each vesting date. The fair value of each stock option granted was estimated using the following weighted-average assumptions:

2013

2012

2011

Assumptions

Volatility

39.45%

39.70%

39.52%

Interest Rates

1.62%

1.24%

1.58%

Dividend Yields

2.99%

3.17%

3.03%

Weighted Average Life ( in years)

5.5

7

7

The weighted average fair value of each stock option granted for 2013, 2012, and 2011 was $3.86, $3.04, and $3.28 , respectively. The total intrinsic value of options exercised during the years ended December 31, 2013, 2012 and 2011, was $361,000, $229,000 and $287,000, respectively. The total intrinsic value of in-the-money stock options was $3.7 million, $3.1 million, and $2.5 million at the year ended December 31, 2013, 2012 and 2011 respectively. The total intrinsic value of the exercisable stock options was $2.3 million, $2.0 million and $1.6 million at the year ended December 31, 2013, 2012 and 2011, respectively.

Net Income Per Share

'

Net Income Per Share

The following table summarizes the Company’s net income per share for the years ended December 31, 2013, 2012, and 2011:

(Amounts in thousands, except per share data)

2013

2012

2011

Net income

$

15,344

$

14,903

$

14,910

Weighted-average common shares outstanding

17,386

17,215

17,326

Basic earnings per share

$

0.88

$

0.87

$

0.86

Weighted-average common shares outstanding

17,386

17,215

17,326

Common stock equivalents due to effect of stock options

189

148

139

Total weighted-average common shares and equivalents

17,575

17,363

17,465

Diluted earnings per share

$

0.87

$

0.86

$

0.85

The unallocated shares controlled by the ESOP of 200,569, 296,096 and 395,587 at December 31, 2013, 2012 and 2011, respectively, are not considered in the weighted average shares outstanding until the shares are committed for allocation to an employee’s individual account. Options to purchase 32,526 shares at $10.35 per diluted share expiring November 2020, 51,995 shares at $11.00 per diluted share expiring November 2021, 122,068 shares at $10.50 per diluted share expiring November 2022 and 191,192 shares at $13.36 per diluted share expiring November 2023 were outstanding at December 31, 2013, but were not included in the computation of diluted earnings per share because the options’ exercise price combined with its fair value was greater than the average market price of the common shares. All of the outstanding options were included in the computation of diluted earnings per share for 2012 and 2011 because the options’ exercise price combined with its fair value was less than the average market price of the common shares.

Reclassifications

'

Reclassifications

Certain amounts in the 2012 financial statements have been reclassified to conform to the 2013 presentation format. These reclassifications had no effect on stockholders’ equity or net income.

Effect of Recent Accounting and Regulatory Pronouncements

'

Effect of Recent Accounting and Regulatory Pronouncements

In February 2013, the FASB issued ASU 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. The new requirements will take effect for public companies in fiscal years, and interim periods within those years, beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure surrounding reclassification items out of accumulated other comprehensive income.

In February 2013, the FASB issued ASU 2013-04, Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation is Fixed at the Reporting Date. The ASU requires the measurement of obligations resulting from joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors as well as any additional amount that the entity expects to pay on behalf of its co-obligors. The new standard is effective retrospectively for fiscal years and interim periods within those years, beginning after December 15, 2013, and early adoption is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In April 2013, the FASB issued ASU 2013-07, Presentation of Financial Statements (Topic 205): Liquidation Basis of Accounting. The amendments in this Update are being issued to clarify when an entity should apply the liquidation basis of accounting. In addition, the guidance provides principles for the recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. The amendments require an entity to prepare its financial statements using the liquidation basis of accounting when liquidation is imminent. Liquidation is imminent when the likelihood is remote that the entity will return from liquidation and either (a) a plan for liquidation is approved by the person or persons with the authority to make such a plan effective and the likelihood is remote that the execution of the plan will be blocked by other parties or (b) a plan for liquidation is being imposed by other forces (for example, involuntary bankruptcy). If a plan for liquidation was specified in the entity’s governing documents from the entity’s inception (for example, limited-life entities), the entity should apply the liquidation basis of accounting only if the approved plan for liquidation differs from the plan for liquidation that was specified at the entity’s inception. The amendments are effective for entities that determine liquidation is imminent during annual reporting periods beginning after December 15, 2013, and interim reporting periods therein. Entities should apply the requirements prospectively from the day that liquidation becomes imminent. Early adoption is permitted. Entities that use the liquidation basis of accounting as of the effective date in accordance with other Topics (for example, terminating employee benefit plans) are not required to apply the amendments. Instead, those entities should continue to apply the guidance in those other Topics until they have completed liquidation. This ASU is not expected to have a significant impact on the Company’s financial statements.

In June 2013, the FASB issued ASU 2013-08, Financial Services – Investment Companies (Topic 946): Amendments to the Scope, Measurement, and Disclosure Requirements. The amendments in this Update affect the scope, measurement, and disclosure requirements for investment companies under U.S. GAAP. The amendments do all of the following: 1. Change the approach to the investment company assessment in Topic 946, clarify the characteristics of an investment company, and provide comprehensive guidance for assessing whether an entity is an investment Company. 2. Require an investment company to measure noncontrolling ownership interests in other investment companies at fair value rather than using the equity method of accounting. 3. Require the following additional disclosures: (a) the fact that the entity is an investment company and is applying the guidance in Topic 946, (b) information about changes, if any, in an entity’s status as an investment company, and (c) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The amendments in this Update are effective for an entity’s interim and annual reporting periods in fiscal years that begin after December 15, 2013. Earlier application is prohibited. This ASU is not expected to have a significant impact on the Company’s financial statements.

In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. An unrecognized tax benefit, or a portion of an unrecognized tax benefit, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows. To the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. The assessment of whether a deferred tax asset is available is based on the unrecognized tax benefit and deferred tax asset that exist at the reporting date and should be made presuming disallowance of the tax position at the reporting date. The amendments in this Update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The amendments should be applied prospectively to all unrecognized tax benefits that exist at the effective date. Retrospective application is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In January 2014, FASB issued ASU 2014-01, Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. The amendments in this Update permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments in this Update should be applied retrospectively to all periods presented. A reporting entity that uses the effective yield method to account for its investments in qualified affordable housing projects before the date of adoption may continue to apply the effective yield method for those preexisting investments. The amendments in this Update are effective for public business entities for annual periods and interim reporting periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. This ASU is not expected to have a significant impact on the Company’s financial statements.

In January 2014, the FASB issued ASU 2014-04, Receivables – Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments in this Update clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this Update are effective for public business entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. An entity can elect to adopt the amendments in this Update using either a modified retrospective transition method or a prospective transition method. This ASU is not expected to have a significant impact on the Company’s financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Interest Rate Swap Contract	'
	Below is a summary of the interest rate swap contracts and the terms at December 31, 2013:
	(Dollars in thousands)	Notional				Effective				Pay				Receive			Maturity		Unrealized
		Amount				Date				Rate				Rate (*)			Date		Loss
	Cash Flow Hedge	$	20,000				2/10/11				4.18	%			0.28	%		2/10/18	$	2,306
	Cash Flow Hedge		15,000				2/10/11				3.91	%			0.28	%		2/10/18		1,563
		$	35,000																$	3,869
	* Variable receive rate based upon contract rates in effect at December 31, 2013
Schedule of Fair Value of Stock Option Granted	'
	The fair value of each stock option granted was estimated using the following weighted-average assumptions:
				2013				2012				2011
	Assumptions
	Volatility				39.45%				39.70%				39.52%
	Interest Rates				1.62%				1.24%				1.58%
	Dividend Yields				2.99%				3.17%				3.03%
	Weighted Average Life ( in years)				5.5				7				7
Summary of Net Income Per Share	'
	The following table summarizes the Company’s net income per share for the years ended December 31, 2013, 2012, and 2011:
	(Amounts in thousands, except per share data)
		2013				2012				2011
	Net income	$	15,344			$	14,903			$	14,910
	Weighted-average common shares outstanding		17,386				17,215				17,326
	Basic earnings per share	$	0.88			$	0.87			$	0.86
	Weighted-average common shares outstanding		17,386				17,215				17,326
	Common stock equivalents due to effect of stock options		189				148				139
	Total weighted-average common shares and equivalents		17,575				17,363				17,465
	Diluted earnings per share	$	0.87			$	0.86			$	0.85

Available_for_Sale_Securities_

Available for Sale Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Summary of available for sale securities	'
	The following table summarizes the Company’s available for sale securities:
	(Dollar amounts in thousands)	Amortized			Unrealized		Unrealized		Fair value
		cost			gains		losses
	December 31, 2013:
	Trust preferred securities	$	45,589		$	225	$	-6,908	$	38,906
	Municipal securities		178,579			5,310		-4,149		179,740
	Equity securities		953			968		-		1,921
	Corporate bonds		201,268			5,313		-361		206,220
	Mortgage-backed securities
	U.S. sponsored entities		623,134			18,397		-7,107		634,424
	Private label		1,788			21		-4		1,805
	Subtotal mortgage-backed securities		624,922			18,418		-7,111		636,229
	Total securities	$	1,051,311		$	30,234	$	-18,529	$	1,063,016
	December 31, 2012:
	Trust preferred securities	$	45,894		$	367	$	-8,234	$	38,027
	Municipal securities		177,414			13,717		-244		190,887
	Equity securities		1,142			676		-		1,818
	Corporate bonds		219,700			7,186		-1,091		225,795
	Mortgage-backed securities
	U.S. sponsored entities		617,158			33,021		-246		649,933
	Private label		4,139			177		-		4,316
	Subtotal mortgage-backed securities		621,297			33,198		-246		654,249
	Total securities	$	1,065,447		$	55,144	$	-9,815	$	1,110,776
Schedule of the Amounts Recognized in Earnings Related to Credit Losses on Securities	'
	The following is a summary of the amounts recognized in earnings related to credit losses on securities which the Company has recorded other-than-temporary impairment charges through earnings and other comprehensive income:
	(Dollars in thousands)
			Totals
	January 1, 2011	$	1,022
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		130
	December 31, 2011		1,152
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		5
	December 31, 2012		1,157
	Credit losses on securities for which other-than-temporary impairment was not previously recognized		-
	Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized		310
	December 31, 2013	$	1,467
Schedule of Investments Gross Unrealized Losses and Fair Value	'
	The following table shows the Company’s investments’ gross unrealized losses and fair value aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2013 and 2012:
	As of December 31, 2013
	(Dollar amounts in thousands)	Less than 12 Months							12 Months or more						Total
		# of			Fair Value		Unrealized		# of		Fair		Unrealized		# of		Fair Value		Unrealized
		Securities					losses		Securities		Value		losses		Securities				losses
	Trust preferred securities		-		$	-	$	-		8	$	37,016	$	6,908		8	$	37,016	$	6,908
	Municipal securities		44			37,243		3,129		6		5,518		1,020		50		42,761		4,149
	Corporate bonds		6			20,869		109		3		11,474		252		9		32,343		361
	Mortgage-backed securities
	U.S. sponsored entities		69			229,223		6,363		4		16,878		744		73		246,101		7,107
	Private label		1			502		4		-		-		-		1		502		4
	Subtotal mortgage-backed securities		70			229,725		6,367		4		16,878		744		74		246,603		7,111
	Total		120		$	287,837	$	9,605		21	$	70,886	$	8,924		141	$	358,723	$	18,529
	As of December 31, 2012
	(Dollar amounts in thousands)	Less than 12 Months							12 Months or more						Total
		# of			Fair		Unrealized		# of		Fair		Unrealized		# of		Fair Value		Unrealized
		Securities			Value		losses		Securities		Value		losses		Securities				losses
	Trust preferred securities		-		$	-	$	-		9	$	36,179	$	8,234		9	$	36,179	$	8,234
	Municipal securities		5			4,179		58		2		3,059		186		7		7,238		244
	Corporate bonds		5			15,604		110		5		20,020		981		10		35,624		1,091
	Mortgage-backed securities
	U.S. sponsored entities		8			28,246		246		-		-		-		8		28,246		246
	Total		18		$	48,029	$	414		16	$	59,258	$	9,401		34	$	107,287	$	9,815
Scheduled Maturities of Securities	'
	The following table summarizes scheduled maturities of the Company’s securities as of December 31, 2013, excluding equity securities which have no maturity dates:
	(Dollar amounts in thousands)	Available for sale
		Weighted			Amortized		Fair value
		Average Yield			cost
	Due in one year or less		2.79	%	$	41,074	$	41,497
	Due from one year to five years		2.97	%		163,785		169,767
	Due from five to ten years		3.37	%		106,115		107,917
	Due after ten years		3.14	%		739,384		741,914
			3.12	%	$	1,050,358	$	1,061,095

Loans_Receivable_Tables

Loans Receivable (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Schedule of Loans Receivable	'
	The following table summarizes the Company’s loans receivable as of December 31:
	(Dollar amounts in thousands)	2013					2012
	Mortgage loans:
	Residential real estate
	Single family	$	341,775				$	326,005
	Construction		44,327					46,418
	Multi family		37,857					33,472
	Total residential real estate		423,959					405,895
	Commercial real estate
	Commercial		77,366					81,077
	Construction		25,971					15,878
	Total commercial real estate		103,337					96,955
	Subtotal mortgage loans		527,296					502,850
	Other loans:
	Consumer loans
	Home equity loans		82,987					80,418
	Dealer auto and RV loans		46,502					46,571
	Other loans		6,653					7,896
	Total consumer loans		136,142					134,885
	Commercial business		52,801					54,445
	Subtotal other loans		188,943					189,330
	Total loans receivable		716,239					692,180
	Less:
	Allowance for loan losses		6,805					6,709
	Deferred loan fees and net discounts		(2,007	)				(1,862	)
	Loans in process		15,805					15,247
	Net loans receivable	$	695,636				$	672,086
Changes in Allowance for Loan Losses and Recorded Investment in Loans	'
	The following tables present by portfolio segment, the changes in the allowance for loan losses and the recorded investment in loans for the year ended December 31, 2013, 2012 and 2011:
	As of December 31, 2013
	(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
	Allowance for loan losses:
	Beginning balance	$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
	Charge-offs		19			7				477			60			4			567
	Recoveries		-			-				138			25			-			163
	Provision		54			197				108			266			(125	)		500
	Reallocations		(62	)		(542	)			254			224			126			-
	Ending Balance	$	523		$	1,723			$	1,054		$	2,996		$	509		$	6,805
	As of December 31, 2012
	(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
	Allowance for loan losses:
	Beginning balance	$	384		$	2,442			$	1,045		$	2,115		$	551		$	6,537
	Charge-offs		32			163				562			289			-			1,046
	Recoveries		-			-				101			17			-			118
	Provision		21			85				40			954			-			1,100
	Reallocations		177			(289	)			407			(256	)		(39	)		-
	Ending Balance	$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
	As of December 31, 2011
	(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
	Allowance for loan losses:
	Beginning balance	$	784		$	1,831			$	1,125		$	2,573		$	234		$	6,547
	Charge-offs		187			-				478			709			-			1,374
	Recoveries		25			-				160			49			-			234
	Provision		-			125				275			655			75			1,130
	Reallocations		(238	)		486				(37	)		(453	)		242			-
	Ending Balance	$	384		$	2,442			$	1,045		$	2,115		$	551		$	6,537
	As of December 31, 2013
	(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
	Allowance for loan losses:
	Ending Balance	$	523		$	1,723			$	1,054		$	2,996		$	509		$	6,805
	Ending balance: individually evaluated for impairment	$	24		$	989			$	48		$	-		$	-		$	1,061
	Ending balance: collectively evaluated for impairment	$	499		$	734			$	1,006		$	2,996		$	509		$	5,744
	Loans Receivable:
	Ending Balance	$	52,801		$	103,337			$	136,142		$	423,959		$	-		$	716,239
	Ending balance: individually evaluated for impairment	$	24		$	14,385			$	407		$	2,206		$	-		$	17,022
	Ending balance: collectively evaluated for impairment	$	52,777		$	88,952			$	135,735		$	421,753		$	-		$	699,217
	As of December 31, 2012
	(Dollar amounts in thousands)
		Commercial			Commercial				Consumer			Residential			Unallocated			Total
					Real Estate
	Allowance for loan losses:
	Ending Balance	$	550		$	2,075			$	1,031		$	2,541		$	512		$	6,709
	Ending balance: individually evaluated for impairment	$	-		$	1,110			$	54		$	-		$	-		$	1,164
	Ending balance: collectively evaluated for impairment	$	550		$	965			$	977		$	2,541		$	512		$	5,545
	Loans Receivable:
	Ending Balance	$	54,445		$	96,955			$	134,885		$	405,895		$	-		$	692,180
	Ending balance: individually evaluated for impairment	$	-		$	13,414			$	327		$	2,163		$	-		$	15,904
	Ending balance: collectively evaluated for impairment	$	54,445		$	83,541			$	134,558		$	403,732		$	-		$	676,276
Schedule of Credit Exposures by Internally Assigned Grades	'
	As of December 31, 2013
	(Dollar amounts in thousands)
		Residential			Residential				Commercial			Commercial			Commercial			Total
		Real Estate			Real Estate				Real Estate			Real Estate
		Multi – family			Construction				Commercial			Construction
	Pass	$	37,857		$	40,874			$	63,532		$	25,971		$	52,730		$	220,964
	Special Mention		-			382				1,283			-			17			1,682
	Substandard		-			3,071				12,551			-			54			15,676
	Doubtful		-			-				-			-			-			-
	Loss		-			-				-			-			-			-
	Ending Balance	$	37,857		$	44,327			$	77,366		$	25,971		$	52,801		$	238,322
	As of December 31, 2012
	(Dollar amounts in thousands)
		Residential			Residential				Commercial			Commercial			Commercial			Total
		Real Estate			Real Estate				Real Estate			Real Estate
		Multi – family			Construction				Commercial			Construction
	Pass	$	33,472		$	41,138			$	65,696		$	15,878		$	53,883		$	210,067
	Special Mention		-			4,477				1,334			-			527			6,338
	Substandard		-			803				14,047			-			35			14,885
	Doubtful		-			-				-			-			-			-
	Loss		-			-				-			-			-			-
	Ending Balance	$	33,472		$	46,418			$	81,077		$	15,878		$	54,445		$	231,290
Performing and Nonperforming Single Family Residential and Consumer Loans Based on Payment Activity	'
	The following tables present performing and nonperforming single family residential and consumer loans based on payment activity for the years ended December 31, 2013 and 2012. Payment activity is reviewed by management on a monthly basis to determine how loans are performing. Loans are considered to be nonperforming when they become 90 days delinquent.
	As of December 31, 2013
	(Dollar amounts in thousands)
		Residential			Consumer				Dealer			Other			Total
		Real Estate			Home				Auto and			Consumer
		Single Family			Equity				RV
	Performing	$	338,370		$	82,692			$	46,364		$	6,588		$	474,014
	Nonperforming		3,405			295				138			65			3,903
	Total	$	341,775		$	82,987			$	46,502		$	6,653		$	477,917
	As of December 31, 2012
	(Dollar amounts in thousands)
		Residential			Consumer				Dealer			Other			Total
		Real Estate			Home				Auto and			Consumer
		Single Family			Equity				RV
	Performing	$	322,662		$	80,124			$	46,450		$	7,787		$	457,023
	Nonperforming		3,343			294				121			109			3,867
	Total	$	326,005		$	80,418			$	46,571		$	7,896		$	460,890
Schedule of Non-Performing loans Interest Income Recorded and Recognized	'
	For non-performing loans, the interest income that would have been recorded under the original terms of such loans and the interest income actually recognized for the years ended December 31, 2013, 2012 and 2011 are summarized below:
	(Dollar amounts in thousands)
		2013			2012				2011
	Interest income that would have been recorded	$	561		$	488			$	858
	Interest income recognized		175			111				728
	Interest income foregone	$	386		$	377			$	130
Aging Analysis of Investment of Past Due Loans Receivable	'
	The following tables include an aging analysis of the investment of past due loans receivable as of December 31, 2013 and 2012:
	(Dollar amounts in thousands)
	As of December 31, 2013
		30-59 Days			60-89 Days				90 Days			Total Past			Current			Total Loans		Recorded
		Past Due			Past Due				Or Greater			Due						Receivable		Investment >
																				90 Days and
																				Accruing
	Residential real estate
	Single family	$	653		$	319			$	3,405		$	4,377		$	337,398		$	341,775	$	-
	Construction		-			-				-			-			44,327			44,327		-
	Multi - family		-			-				-			-			37,857			37,857		-
	Commercial Real Estate
	Commercial		53			65				4,787			4,905			72,461			77,366		-
	Construction		-			-				-			-			25,971			25,971		-
	Consumer
	Consumer - home equity		156			65				214			435			82,552			82,987		-
	Consumer - dealer auto and RV		993			106				136			1,235			45,267			46,502		-
	Consumer - other		47			43				65			155			6,498			6,653		-
	Commercial		-			-				30			30			52,771			52,801		-
	Total	$	1,902		$	598			$	8,637		$	11,137		$	705,102		$	716,239	$	-
	(Dollar amounts in thousands)
	As of December 31, 2012
		30-59 Days			60-89 Days				90 Days			Total Past			Current			Total Loans		Recorded
		Past Due			Past Due				Or Greater			Due						Receivable		Investment >
																				90 Days and
																				Accruing
	Residential real estate
	Single family	$	887		$	420			$	3,343		$	4,650		$	321,355		$	326,005	$	-
	Construction		-			-				-			-			46,418			46,418		-
	Multi - family		-			-				-			-			33,472			33,472		-
	Commercial Real Estate
	Commercial		246			598				3,211			4,055			77,022			81,077		-
	Construction		-			-				-			-			15,878			15,878		-
	Consumer
	Consumer - home equity		219			-				223			442			79,976			80,418		-
	Consumer - dealer auto and RV		771			230				104			1,105			45,466			46,571		-
	Consumer - other		70			12				109			191			7,705			7,896		-
	Commercial		-			2				35			37			54,408			54,445		-
	Total	$	2,193		$	1,262			$	7,025		$	10,480		$	681,700		$	692,180	$	-
Recorded Investment and Unpaid Principal Balances for Impaired Loans Receivable	'
	The following tables include the recorded investment and unpaid principal balances for impaired loans receivable as of December 31, 2013 and 2012 with the associated allowance for loan losses amount, if applicable.
	(Dollar amounts in thousands)
	As of December 31, 2013
		Recorded			Unpaid				Related
		Investment			Principal				Allowance
					Balance
	With no related allowance recorded:
	Commercial real estate	$	3,139		$	3,246			$	-
	Residential single family		1,356			1,356				-
	Residential construction loans		850			850				-
	Consumer loans
	Home Equity		249			253				-
	Dealer auto and RV		6			6				-
	With an allowance recorded:
	Commercial real estate		11,246			11,409				989
	Commercial business loans		24			24				24
	Consumer loans
	Home equity		149			149				45
	Dealer auto and RV		3			3				3
	Total:
	Commercial Real Estate		14,385			14,655				989
	Commercial business loans		24			24				24
	Residential single family		1,356			1,356				-
	Residential construction loans		850			850				-
	Consumer		407			411				48
	Total	$	17,022		$	17,296			$	1,061
	(Dollar amounts in thousands)
	As of December 31, 2012
		Recorded			Unpaid				Related
		Investment			Principal				Allowance
					Balance
	With no related allowance recorded:
	Commercial real estate	$	5,433		$	5,540			$	-
	Residential single family		1,360			1,360				-
	Residential construction loans		803			803				-
	Consumer loans
	Home Equity		130			130				-
	Dealer auto and RV		14			14				-
	With an allowance recorded:
	Commercial real estate		7,981			8,144				1,110
	Consumer loans
	Home equity		179			179				50
	Dealer auto and RV		4			4				4
	Total:
	Commercial Real Estate		13,414			13,684				1,110
	Residential single family		1,360			1,360				-
	Residential construction loans		803			803				-
	Consumer		327			327				54
	Total	$	15,904		$	16,174			$	1,164
Average Recorded Investment and Interest Income Recognized on Loans	'
	The following include the average recorded investment and interest income recognized on the loans considered to be impaired during the years ended December 31, 2013, 2012 and 2011:
	(Dollar amounts in thousands)
	As of December 31, 2013	2013							2012						2011
		Average			Interest				Average			Interest			Average			Interest
		Recorded			Income				Recorded			Income			Recorded			Income
		Investment			Recognized				Investment			Recognized			Investment			Recognized
	With no related allowance recorded:
	Commercial real estate	$	3,147		$	83			$	5,473		$	228		$	1,416		$	302
	Commercial business loans		-			-				-			-			68			10
	Residential single family		1,358			9				1,362			9			1,207			61
	Residential construction loans		883			33				512			41			-			-
	Consumer loans
	Home Equity		211			16				57			11			-			-
	Dealer auto and RV		9			2				3			3			-			-
	With an allowance recorded:
	Commercial real estate		10,848			609				8,186			406			7,478			544
	Commercial business loans		14			1				-			-			122			3
	Consumer loans
	Home equity		150			9				166			12			154			9
	Dealer auto and RV		3			-				1			1			-			-
	Total:
	Commercial Real Estate		13,995			692				13,659			634			8,894			846
	Commercial business loans		14			1				-			-			190			13
	Residential single family		1,358			9				1,362			9			1,207			61
	Residential construction loans		883			33				512			41			-			-
	Consumer		373			27				227			27			154			9
Schedule of Loans Receivable on Nonaccrual Status	'
	The following table sets forth the loans receivable on nonaccrual status as of December 31, 2013 and December 31, 2012. The balances are presented by class of loans.
	(Dollar amounts in thousands)
		2013			2012
	Commercial	$	30		$	35
	Commercial Real Estate		4,787			3,432
	Residential		3,405			3,403
	Consumer
	Consumer – Home Equity		214			293
	Consumer – Dealer auto and RV		136			121
	Consumer – other		65			109
	Total	$	8,637		$	7,393
Summary of Information Relating to Troubled Debt Restructuring by Class of Loans	'
	The following table includes the recorded investment and number of modifications for modified loans, as of December 31, 2013 and 2012.
	As of December 31, 2013
	(Dollar amounts in thousands)
									Post-Modification Recorded Investment
		Number of			Pre-Modification				Maturity Date			Deferral of			Other			Total
		Contracts			Outstanding				Extension			Principal Payments
					Recorded
					Investment
	Troubled Debt Restructurings
	Commercial real estate		11		$	2,306			$	26		$	-		$	2,280		$	2,306
	Commercial business loans		1			25										25			25
	Consumer
	Home equity		8			148				148			-			-			148
	Troubled Debt Restructurings		20		$	2,479			$	174		$	-		$	2,305		$	2,479
	As of December 31, 2012
	(Dollar amounts in thousands)
									Post-Modification Recorded Investment
		Number of			Pre-Modification				Maturity Date			Deferral of			Other			Total
		Contracts			Outstanding				Extension			Principal Payments
					Recorded
					Investment
	Troubled Debt Restructurings
	Residential construction		4		$	1,053			$	1,053		$	-		$	-		$	1,053
	Commercial real estate		2			198				198			-			-			198
	Consumer
	Home equity		7			168				168			-			-			168
	Dealer auto and RV		4			18				18			-			-			18
	Troubled Debt Restructurings		17		$	1,437			$	1,437		$	-		$	-		$	1,437

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Schedule of Major Classifications of Premises and Equipment	'
	Premises and equipment at December 31, are summarized by major classification as follows:
	(Dollar amounts in thousands)	2013		2012
	Land	$	3,377	$	3,444
	Buildings and improvements		19,839		19,889
	Leasehold improvements		805		795
	Furniture, fixtures and equipment		8,697		8,723
			32,718		32,851
	Less accumulated depreciation and amortization		19,410		18,565
		$	13,308	$	14,286

Deposits_Tables

Deposits (Tables)	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Summary of Deposits	'
	The following table summarizes the Company’s deposits as of December 31:
	(Dollar amounts in thousands)	2013				2012
	Type of accounts	Amount		%		Amount		%
	Noninterest-bearing deposits	$	124,777		10.20%	$	109,964		9.30%
	NOW account deposits		234,163		19.20%		223,736		19.00%
	Money Market deposits		39,688		3.20%		39,255		3.30%
	Passbook account deposits		178,412		14.60%		173,343		14.70%
	Time deposits		645,727		52.80%		631,759		53.70%
		$	1,222,767		100.0%	$	1,178,057		100.0%
Schedule of Deposits of Time Deposits Maturity	'
	(Dollar amounts in thousands)	2013				2012
	Type of accounts	Amount		%		Amount		%
	Time deposits mature as follows:
	Within one year	$	437,731		67.80%	$	375,862		59.60%
	After one year through two years		115,976		18.00%		118,333		18.70%
	After two years through three years		60,045		9.30%		78,492		12.40%
	After three years through four years		16,393		2.50%		36,920		5.80%
	After four years through five years		10,871		1.70%		17,106		2.70%
	Thereafter		4,711		0.70%		5,046		0.80%
		$	645,727		100.00%	$	631,759		100.00%
Schedule of Interest Expense by Type of Deposit Account	'
	Interest expense by type of deposit account for the years ended December 31, 2013, 2012 and 2011 is as follows:
	(Dollar amounts in thousands)	2013		2012		2011
	NOW account deposits	$	232	$	298	$	556
	Money Market deposits		34		47		103
	Passbook account deposits		89		156		372
	Time deposits		7,017		8,824		10,923
		$	7,372	$	9,325	$	11,954

Borrowed_Funds_Tables

Borrowed Funds (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Summary of Borrowed Funds	'
	Borrowed funds, which include FHLB advances, repurchase agreements, ESOP borrowings, corporate borrowings, borrowings for joint ventures and junior subordinated debt, as of December 31, 2013 and 2012 are summarized as follows:
	(Dollar amounts in thousands)	2013					2012
		Weighted			Amount		Weighted			Amount
		average rate					average rate
	FHLB advances:
	Due within 12 months		2.12	%	$	101,492		2.69	%	$	100,147
	Due beyond 12 months but within 2 years		2.14	%		25,873		2.88	%		71,392
	Due beyond 2 years but within 3 years		0.99	%		78,008		3.13	%		15,873
	Due beyond 3 years but within 4 years		1.34	%		73,380		2.15	%		8,013
	Due beyond 4 years but within 5 years		3.26	%		12,168		1.03	%		7,807
	Due beyond 5 years		-			-		3.61	%		10,000
					$	290,921				$	213,232
	Repurchase agreements:
	Due within 12 months		2.34	%	$	58,000		2.99	%	$	148,000
	Due beyond 12 months but within 2 years		4.12	%		10,000		3.07	%		40,000
	Due beyond 2 years but within 3 years		-			-		4.12	%		10,000
	Due beyond 3 years but within 4 years		4.28	%		25,000		-			-
	Due beyond 4 years but within 5 years		4.49	%		45,000		4.28	%		25,000
	Due beyond 5 years		-			-		4.49	%		45,000
					$	138,000				$	268,000
	Other borrowings:
	ESOP borrowings
	Due within 12 months		4.68	%	$	1,000		4.68	%	$	1,000
	Due beyond 12 months but within 2 years		4.68	%		1,000		4.68	%		1,000
	Due beyond 2 years but within 3 years		4.68	%		250		4.68	%		1,000
	Due beyond 3 years but within 4 years		-			-		4.68	%		250
					$	2,250				$	3,250
	Corporate borrowings
	Due within 12 months		3.75	%	$	1,000		-		$	-
	Due beyond 12 months but within 2 years		3.75	%		1,000		-			-
	Due beyond 2 years but within 3 years		3.75	%		1,000		-			-
	Due beyond 3 years but within 4 years		3.75	%		1,000		-			-
	Due beyond 4 years but within 5 years		3.75	%		5,973		-			-
					$	9,973				$	-
	Borrowings for joint ventures
	Due beyond 4 years but within 5 years		-			-		3.75	%		74
					$	-				$	74
	Junior subordinated notes
	Due beyond 5 years		2.06	%	$	36,083		2.41	%	$	46,393

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Provision for Income Taxes	'
	The provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is comprised of the following:
	(Dollar amounts in thousands)	2013			2012			2011
	Current expense:
	Federal	$	3,065		$	3,578		$	5,170
	State		140			48			31
			3,205			3,626			5,201
	Deferred benefit:
	Federal		114			(412	)		(1,758	)
	State		22			22			(63	)
		$	3,341		$	3,236		$	3,380
Schedule of Income Tax Amounts Recorded to Stockholders' Equity	'
	In addition to income taxes applicable to income before taxes in the consolidated statements of operations, the following income tax amounts were recorded to stockholders’ equity during the years ended December 31, 2013, 2012 and 2011:
	(Dollar amounts in thousands)	2013			2012			2011
	Net loss (gain) on securities available for sale	$	12,331		$	(4,072	)	$	(4,350	)
	Net (gain) loss on fair value adjustment on derivatives		(655	)		74			965
	Net unrecognized pension (benefit) cost		(81	)		14			15
	Compensation expense for tax purposes in excess of amounts recognized for financial statement purposes		47			48			55
		$	11,642		$	(3,936	)	$	(3,315	)
Tax Effects of Assets and Liabilities Included in Net Deferred Tax Asset	'
	The tax effects of temporary differences between the financial reporting basis and income tax basis of assets and liabilities that are included in the net deferred tax asset as of December 31, relate to the following:
	(Dollar amounts in thousands)	2013			2012
	Deferred tax assets:
	Allowances for losses on loans and real estate owned	$	2,432		$	2,369
	Minimum tax credit carry forward		3,851			3,834
	Writedown of debt		1,255			1,305
	Real estate acquired through foreclosure, net		176			213
	State net operating loss carryover		556			568
	Defined benefit plans		244			325
	Mortgage servicing rights		1			3
	Investment in joint ventures		906			1,210
	Interest rate swaps		2,515			3,733
	Other		2,612			2,407
	Total gross deferred tax assets		14,548			15,967
	Less state valuation allowance		244			234
	Deferred tax assets after valuation allowance		14,304			15,733
	Deferred tax liabilities:
	Investment in securities available for sale		5,257			17,588
	Accretion of discounts		3			3
	Core deposit intangible		41			101
	Purchase price adjustments		41			63
	Other		225			218
	Gross deferred tax liabilities		5,567			17,973
	Net deferred tax (liability)	$	8,737		$	(2,240	)
Reconciliation of Federal Income Tax Rate	'
	A reconciliation between the provision for income taxes and the amount computed by multiplying operating results before income taxes by the statutory federal income tax rate of 35% for the years ended December 31, 2013, 2012 and 2011:
		2013			2012			2011
	Tax at statutory rate		35	%		35	%		35	%
	(Decrease) increase resulting from:
	Tax free income, net of interest disallowance		(14.0	%)		(14.2	%)		(12.6	%)
	State income taxes, net of Federal income tax benefit		0.5	%		0.2	%		0.1	%
	Earnings of BOLI		(1.1	%)		(1.2	%)		(1.3	%)
	Other, net		(2.5	%)		(1.9	%)		(2.7	%)
	Effective rate		17.9	%		17.8	%		18.5	%

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Stock Option Activities Under the Option Plans	'
	Stock option activities under the Option Plans for the years ended December 31, 2013 ,2012 and 2011 are as follows:
		2013						2012								2011
		Options			Weighted			Options				Weighted				Options				Weighted
					Average							Average								Average
					Exercise							Exercise								Exercise
					Price/Share							Price/Share								Price/Share
	Outstanding at beginning of year		1,195,661		$	9.51			1,102,325			$	9.08				1,201,410			$	8.53
	Granted		258,990			13.36			259,596				10.5				141,266				10.99
	Exercised		(161,811	)		9.88			(112,105	)			7.93				(146,334	)			7.34
	Forfeited		(19,750	)		9.86			(54,155	)			8.78				(94,018	)			7.68
	Outstanding at end of year		1,273,090			10.24			1,195,661				9.51				1,102,325				9.08
	Exercisable at end of year		875,309		$	9.47			827,640			$	9.13				793,846			$	8.78
Schedule of Characteristics of Issued Stock Options	'
	The following table summarizes certain characteristics of issued stock options as of December 31, 2013:
	Year Issued	Options			Exercise			Average
		Outstanding			Price			Remaining
								Contractual
								Life (in years)
	2004		78,133		$	10.08			0.9
	2005		68,534			8.48			1.3
	2005		17,709			8.61			1.3
	2006		59,355			7.47			2.9
	2007		57,492			7.03			3.9
	2008		69,768			7.16			4.9
	2009		118,668			8.02			5.9
	2010		162,274			10.35			6.9
	2011		129,686			11			7.9
	2012		252,481			10.5			8.9
	2013		258,990			13.36			9.9
			1,273,090		$	10.24			6.7
Schedule of Changes in the Stock for the MRP and RSP	'
	The following is a summary of the changes in the stock for the MRP and RSP during the years ended December 31, 2013, 2012 and 2011:
		Shares
	Nonvested restricted stock as of January 1, 2011		3,306
	Granted		108,000
	Vested		(13,956	)
	Forfeited		(150	)
	Nonvested restricted stock as of December 31, 2011		97,200
	Granted		33,332
	Vested		(17,464	)
	Forfeited		-
	Nonvested restricted stock as of December 31, 2012		113,068
	Granted		26,196
	Vested		(22,703	)
	Forfeited		-
	Nonvested restricted stock as of December 31, 2013		116,561
Schedule of the Obligation and Funded Status	'
	The following table sets forth the obligation and funded status as of December 31, 2013 and 2012:
	(Dollar amounts in thousands)	Directors’ Retirement Plan								SERP
			2013			2012					2013				2012
	Change in benefit obligation
	Benefit obligation at beginning of year	$	827		$	829				$	2,960			$	2,678
	Service Cost		4			6					99				81
	Interest Cost		29			34					112				120
	Actuarial losses		8			30					(93	)			166
	Benefits paid		(41	)		(72	)				(85	)			(85	)
	Benefit obligation at end of year		827			827					2,993				2,960
	Change in plan assets
	Fair value of plan assets at beginning of year		-			-					-				-
	Employer contributions		41			72					85				85
	Benefits paid		(41	)		(72	)				(85	)			(85	)
	Fair value of plan assets at end of year		-			-					-				-
	Funded Status	$	(827	)	$	(827	)			$	(2,993	)		$	(2,960	)
	Amounts recognized in accumulated other comprehensive income, net consist of:
	Net loss	$	61		$	56				$	335			$	465
	Prior service cost		-			-					-				-
	Transition obligation		-			-					81				108
	Total	$	61		$	56				$	416			$	573
Schedule of Net Periodic Pension Cost for Retirement Plan	'
	The components of net periodic benefit cost and other amounts recognized in AOCI at December 31, 2013, 2012 and 2011 are as follows:
	(Dollar amounts in thousands)	Directors’ Retirement Plan												SERP
			2013			2012			2011						2013				2012				2011
	Net Periodic Pension Cost
	Service cost	$	4		$	6		$	5					$	99			$	81			$	64
	Interest cost		29			34			41						112				120				123
	Amortization of transition obligation		-			-			-						41				41				41
	Amortization of net loss		-			-			-						105				81				55
	Amortization of prior service cost		-			33			87						-				-				-
	Net periodic pension cost	$	33		$	73		$	133					$	357			$	323			$	283
	Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive income (loss)
	Net actuarial loss/ (gain)	$	5		$	(7	)	$	11					$	(128	)		$	51			$	101
	Amortization of transition obligation		-			-			-						(27	)			(29	)			(27	)
	Amortization of prior service cost		-			(22	)		(57	)					-				-				-
	Total recognized in other comprehensive income	$	5		$	(29	)	$	(46	)				$	(155	)		$	22			$	74
Schedule of the Weighted Average Assumptions Used to Determine Benefit Obligations and Net Periodic Pension Cost	'
	The weighted average assumptions used to determine benefit obligations and net periodic pension cost at the measurement dates were as follows:
		Directors’ Retirement Plan					SERP
		2013		2012			2013	2012
	Discount rate	4.75%		4.50%			4.25%	4.13%
	Rate of compensation increase	4.00%		2.50%			4.00%	4.00%

Other_Comprehensive_Income_los1

Other Comprehensive Income (loss) (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Summary of Amounts Recognized in Other Comprehensive Income Loss	'
	The components of AOCI, net of tax as of year-end were as follows:
	(Dollar amounts in thousands)
	Details about AOCI Components	2013			2012			2011			in the Statement where net
											income is presented
	Available-for-sale securities
	Realized gain on sale of securities	$	(898	)	$	(746	)	$	(937	)	Net realized gain on securities
	Impairment losses on investment securities		310			31			447		Non-interest income
			(588	)		(715	)		(490	)	Total before tax
											available for sale
			206			250			167		Provision for income tax expense
			(382	)		(465	)		(323	)	Net of tax
	Defined benefit pension plan items
	Amortization of transition obligations		41			41			41		See Note 1 below
	Amortization of prior service costs		-			33			87		See Note 1 below
	Amortization of actuarial gains/(losses)		105			81			55		See Note 1 below
			146			155			183		Total before tax
			(51	)		(54	)		(64	)	Provision for income tax expense
			95			101			119		Net of tax
	Total reclassifications	$	(287	)	$	(364	)	$	(204	)	Net of tax
Summary of Comprehensive Income Loss	'
	(Dollar amounts in thousands)	Gains/(losses)			Unrealized			Defined			Total
		on Cash Flow			gains/(losses) on			benefit pension
		Hedges			available-for-sale			plan items
					securities
	Balance at January 1, 2011	$	(1,886	)	$	17,794		$	(574	)	$	15,334
	Other comprehensive income/(loss) before reclassification		(1,709	)		7,631			(147	)		5,775
	Amounts reclassified from AOCI		-			(323	)		119			(204	)
	Balance at December 31, 2011		(3,595	)		25,102			(602	)		20,905
	Other comprehensive income/(loss) before reclassification		(138	)		4,827			(127	)		4,562
	Amounts reclassified from AOCI		-			(465	)		101			(364	)
	Balance at December 31, 2012		(3,733	)		29,464			(628	)		25,103
	Other comprehensive income/(loss) before reclassification		1,218			(21,474	)		55			(20,201	)
	Amounts reclassified from AOCI		-			(382	)		95			(287	)
	Balance at December 31, 2013	$	(2,515	)	$	7,608		$	(478	)	$	4,615

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Schedule of Notional Amount of Company's Off-Balance Sheet Financial Instruments	'
	The following table presents the notional amount of the Company’s off-balance sheet financial instruments as of December 31, 2013 and 2012:
	(Dollar amounts in thousands)	2013		2012
	Loans in process and commitments:
	Fixed interest rate	$	18,551	$	18,732
	Variable interest rate		11,671		13,617
	Lines of credit (unfunded):
	Commercial		29,009		21,544
	Consumer		50,002		51,375
	Letters of credit:
	Standby		2,903		15,423
	Interest Rate Cap Contracts		230,000		170,000
	Interest Rate Swap Contracts		35,000		35,000

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Value on a Recurring Basis	'
	The following tables present the assets and liabilities reported on the consolidated statements of financial condition at their fair value on a recurring basis as of December 31, 2013 and 2012 by level within the fair value hierarchy. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement.
			As of December 31, 2013
	(Dollar amounts in thousands)
			Quoted Prices			Significant Other			Significant			Total
			in Active			Observable			Unobservable
			Markets for			Inputs (Level II)			Inputs
			Identical						(Level III)
			Assets  or
			Liabilities
			(Level I)
	Assets:
	Securities available for sale:
	Trust preferred securities		$	-		$	1,697		$	37,209		$	38,906
	Municipal securities			-			179,740			-			179,740
	Equity securities			1,921			-			-			1,921
	Corporate bonds			-			206,220			-			206,220
	Mortgage backed securities
	U.S. sponsored entities			-			634,424			-			634,424
	Private label			-			1,805			-			1,805
	Subtotal mortgage-backed securities			-			636,229			-			636,229
	Total securities available for sale		$	1,921		$	1,023,886		$	37,209		$	1,063,016
	Other Assets
	Interest rate caps			-			717			-			717
	Total other assets		$	-		$	717		$	-		$	717
	Liabilities:
	Other Liabilties
	Interest rate swaps			-			3,870			-			3,870
	Total other liabilities		$	-		$	3,870		$	-		$	3,870
			As of December 31, 2012
	(Dollar amounts in thousands)
			Quoted Prices			Significant Other			Significant			Total
			in Active			Observable			Unobservable
			Markets for			Inputs (Level II)			Inputs
			Identical						(Level III)
			Assets or
			Liabilities
			(Level I)
	Assets:
	Securities available for sale:
	Trust preferred securities		$	-		$	1,848		$	36,179		$	38,027
	Municipal securities			-			190,887			-			190,887
	Equity securities			1,818			-			-			1,818
	Corporate bonds			-			225,795			-			225,795
	Mortgage backed securities
	U.S. sponsored entities			-			649,933			-			649,933
	Private label			-			4,316			-			4,316
	Subtotal mortgage-backed securities			-			654,249			-			654,249
	Total securities available for sale		$	1,818		$	1,072,779		$	36,179		$	1,110,776
	Other Assets
	Interest rate caps			-			90			-			90
	Total other assets		$	-		$	90		$	-		$	90
	Liabilities:
	Other Liabilties
	Interest rate swaps			-			5,743			-			5,743
	Total other liabilities		$	-		$	5,743		$	-		$	5,743
Fair Value Measurements Using Significant Unobservable Inputs (Level III)	'
	Fair value measurements using significant unobservable inputs (Level III):
			Securites available for sale
			2013			2012
	Beginning balance January 1,		$	36,179		$	35,789
	Total net realized/unrealized gains (losses)
	Included in earnings:
	Interest income on securities			14			14
	Net realized loss on securities available for sale			(310	)		(5	)
	Included in other comprehensive income			1,326			381
	Transfers in and/or out of Level III			-			-
	Purchases, issuances, sales and settlements
	Purchases			-			-
	Issuances			-			-
	Sales			-			-
	Settlements			-			-
	Ending balance, December 31,		$	37,209		$	36,179
Changes in Unrealized Gains and Losses Recorded in Earnings for Level III Assets and Liabilities	'
	The following table summarizes changes in unrealized gains and losses recorded in earnings for the year ended December 31, 2013 and December 31, 2012, for Level III assets and liabilities that were still held at December 31, 2013 and 2012:
			Securites available for sale
			2013			2012
	Interest income on securities		$	14		$	14
	Net realized loss on securities available for sale			(310	)		(5	)
	Total		$	(296	)	$	9
Schedule of Fair Value Level III Assets Measured at Fair Value on a Recurring or Non-Recurring Basis	'
	For Level III assets measured at fair value on a recurring or non-recurring basis as of December 31, 2013, the significant observable inputs used in the fair value measurements were as follows:
	(Dollar amounts in thousands)		Fair Value at			Fair Value at		Valuation	Significant		2013 Range	2012 Range
			December 31,			December 31,		Technique	Unobservable		(Weighted	(Weighted
			2013			2012			Inputs		Average)	Average)
	Trust Preferred Securities		$	37,209		$36,179		Discounted	Credit Spreads		45-70 (57.5)	45-80 (66.1)
								Cash Flow			basis points	basis points
									Liquidity Risk		20-55 (36)	20-65 (38)
									Adjustments		basis points	basis points
									Default Rates		.6% - 1%	.6% - 1%
	Impaired Loans			15,961		14,740		Appraisal of	Appraisal value		2.84% - 48.93%	0.64% - 48.93%
								collateral (1)	and liquidation		-9.95%	-9.98%
									expense
	Real estate acquired through foreclosure			1,977		2,441		Appraisal of	N/A		N/A	N/A
								collateral (1)
	Servicing assets			9		14		Discounted	Remaining term		1.25 yrs to 16.9	0.2 yrs to 18.8
								Cash Flow			yrs (12.5 yrs)	yrs (13.5 yrs)
									Discount Rate		11.25% - 12.25%	11.25% - 12.25%
											-11.36%	-11.51%
		-1	Fair value is generally determined through independent appraisals of the underlying collateral, which generally includes various level III inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses.

Financial_Instruments_Tables

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Investments All Other Investments [Abstract]	'
Carrying Amount and Fair Value of the Company's Financial Instruments	'
	The following table sets forth the carrying amount and fair value of the Company’s financial instruments included in the consolidated statement of financial condition as of December 31:
	As of December 31, 2013
	(Dollar amounts in thousands)
		Carrying Amount		Quoted Prices		Significant		Significant		Total Fair
				in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level III)
				or Liabilities		(Level II)
				(Level I)
	Financial assets:
	Cash and cash equivalents	$	16,214	$	16,214	$	-	$	-	$	16,214
	Securities		1,063,016		1,921		1,023,886		37,209		1,063,016
	Securities receivable		654		654		-		-		654
	Loans receivable		695,636		-		-		707,919		707,919
	Accrued interest receivable		7,345		7,345		-		-		7,345
	FHLB stock		15,436		15,436		-		-		15,436
	Bank owned life insurance		30,595		30,595		-		-		30,595
	Interest rate cap contracts		717		-		717		-		717
	Financial liabilities:
	Deposits		1,222,767		577,040		-		652,395		1,229,435
	Borrowed funds		441,144		-		151,942		303,436		455,378
	Junior subordinated notes		36,083		-		25,258		-		25,258
	Advance payment by borrowers for taxes and insurance		2,659		2,659		-		-		2,659
	Accrued interest payable		1,046		1,046		-		-		1,046
	Interest rate swap contracts		3,870		-		3,870		-		3,870
	As of December 31, 2012
	(Dollar amounts in thousands)
		Carrying		Quoted Prices		Significant		Significant		Total Fair
		Amount		in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical Assets		Inputs		(Level III)
				or Liabilities		(Levell II)
				(Level I)
	Financial assets:
	Cash and cash equivalents	$	15,064	$	15,064	$	-	$	-	$	15,064
	Securities		1,110,776		1,818		1,072,779		36,179		1,110,776
	Securities receivable		1,277		1,277		-		-		1,277
	Loans receivable		672,086		-		-		702,206		702,206
	Accrued interest receivable		8,068		8,068		-		-		8,068
	FHLB stock		15,077		15,077		-		-		15,077
	Bank owned life insurance		30,025		30,025		-		-		30,025
	Interest rate cap contracts		90		-		90		-		90
	Financial liabilities:
	Deposits		1,178,057		546,298		-		641,430		1,187,728
	Borrowed funds		484,556		-		260,333		249,550		509,883
	Junior subordinated notes		46,393		-		25,001		-		25,001
	Advance payment by borrowers for taxes and insurance		2,619		2,619		-		-		2,619
	Accrued interest payable		1,344		1,344		-		-		1,344
	Interest rate swap contracts		5,743		-		5,743		-		5,743

Regulatory_Matters_and_Insuran1

Regulatory Matters and Insurance of Accounts (Tables)	12 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Schedule of Information Concerning Regulatory Capital of the Bank	'
	The following table sets forth certain information concerning regulatory capital of the Bank:
	(Dollar amounts in thousands)	Actual					For Capital Adequacy					To Be Well
							Purposes:					Capitalized Under
												Prompt Corrective
												Action Provisions:
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	As of December 31, 2013:
	Total Capital	$	171,660		15.94	%	$	86,170		8	%	$	107,713		10	%
	(to Risk Weighted Assets)
	Tier 1 Leverage Capital	$	164,710		9.11	%	$	72,305		4	%	$	90,381		5	%
	(to Adjusted Tangible Assets)
	Tier 1 Risk Based Capital	$	164,710		15.29	%	$	43,085		4	%	$	64,628		6	%
	(to Risk Weighted Assets)
	As of December 31, 2012:
	Total Capital	$	164,082		15.21	%	$	86,309		8	%	$	107,886		10	%
	(to Risk Weighted Assets)
	Tier 1 Leverage Capital	$	157,313		8.7	%	$	72,355		4	%	$	90,444		5	%
	(to Adjusted Tangible Assets)
	Tier 1 Risk Based Capital	$	157,313		14.58	%	$	43,154		4	%	$	64,732		6	%
	(to Risk Weighted Assets)

Quarterly_Financial_Data_unaud1

Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Quarterly Financial Data (unaudited)	'
	Quarterly earnings per share data may vary from annual earnings due to rounding.
	(Dollar amounts in thousands, except share data)	First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
	2013:00:00
	Interest income	$	16,427	$	16,008	$	16,078	$	16,243
	Interest expense		6,176		5,493		5,246		5,062
	Net interest income		10,251		10,515		10,832		11,181
	Provision for loan losses		150		75		75		200
	Net interest income after provision for loan losses		10,101		10,440		10,757		10,981
	Net realized gain on securities available for sale		268		198		58		374
	Other noninterest income		1,645		1,698		1,559		971
	Noninterest expense		7,213		7,454		7,500		7,689
	Income before provision for income taxes		4,801		4,882		4,874		4,637
	Provision for income taxes		811		956		763		810
	Net income before noncontrolling interest		3,990		3,926		4,111		3,827
	Less: net income attributable to the noncontrolling interest		276		50		140		44
	Net income attributable to ESB Financial Corporation	$	3,714	$	3,876	$	3,971	$	3,783
	Net income per share
	Basic	$	0.21	$	0.22	$	0.23	$	0.22
	Diluted	$	0.21	$	0.22	$	0.23	$	0.21
	2012:00:00
	Interest income	$	18,870	$	18,590	$	17,943	$	17,109
	Interest expense		7,873		7,581		7,168		6,778
	Net interest income		10,997		11,009		10,775		10,331
	Provision for loan losses		200		300		350		250
	Net interest income after provision for loan losses		10,797		10,709		10,425		10,081
	Net realized gain on securities available for sale		267		-		197		282
	Other noninterest income		1,456		1,538		1,440		2,144
	Noninterest expense		7,722		7,491		7,248		7,817
	Income before provision for income taxes		4,798		4,756		4,814		4,690
	Provision for income taxes		845		799		793		799
	Net income before noncontrolling interest		3,953		3,957		4,021		3,891
	Less: net income attributable to the noncontrolling interest		168		276		87		388
	Net income attributable to ESB Financial Corporation	$	3,785	$	3,681	$	3,934	$	3,503
	Net income per share
	Basic	$	0.22	$	0.22	$	0.23	$	0.21
	Diluted	$	0.22	$	0.21	$	0.23	$	0.21

ESB_Financial_Corporation_Cond1

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only) (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Schedule of Condensed Statements of Financial Condition	'
	Following are condensed financial statements for the parent company as of and for the years ended December 31, 2013 and 2012:
	Condensed Statements of Financial Condition
	(Dollar amounts in thousands)			2013				2012
	Assets:
	Interest-earning deposits			$	5,741			$	1,091
	Securities available for sale				34,273				34,889
	Equity in net assets of subsidiaries				213,613				227,695
	Other assets				6,004				5,969
	Total assets			$	259,631			$	269,644
	Liabilities and stockholders’ equity:
	Subordinated debt, net			$	36,083			$	46,393
	Accrued expenses and other liabilities				36,546				27,553
	Stockholders’ equity				187,002				195,698
	Total liabilities and stockholders’ equity			$	259,631			$	269,644
Schedule of Condensed Statements of Operations	'
	Condensed Statements of Operations
	(Dollar amounts in thousands)	2013				2012				2011
	Income:
	Equity in undistributed earnings of subsidiaries	$	7,007			$	6,356			$	1,664
	Dividends from subsidiaries		10,000				10,000				15,000
	Management fee income, from subsidiaries		48				48				36
	Net gain on sale of securities available for sale		256				629				141
	Other than temporary impairment losses on securities available for sale		-				(26	)			(317	)
	Interest and other income		928				1,126				1,365
	Total income		18,239				18,133				17,889
	Expense:
	Interest expense, to subsidiary		2,753				2,957				3,257
	Compensation and employee benefits		807				632				432
	Other		656				657				445
	Total expense		4,216				4,246				4,134
	Income before benefit from income taxes		14,023				13,887				13,755
	Benefit from income taxes		(1,321	)			(1,016	)			(1,155	)
	Net income	$	15,344			$	14,903			$	14,910
Schedule of Condensed Statements of Comprehensive Income	'
	Condensed Statements of Comprehensive Income
	(Dollar amounts in thousands)	2013				2012				2011
	Net Income before noncontrolling interest	$	15,854			$	15,822			$	15,821
	Other comprehensive income (loss) (net of tax and reclassifications)
	Net change in unrealized gains (losses):
	Gains (losses) arising during the period		(889	)			741				368
	Income tax effect		311				(259	)			(129	)
			(578	)			482				239
	Gains recognized in earnings		(256	)			(629	)			(141	)
	Income tax effect		90				221				49
			(166	)			(408	)			(92	)
	Unrealized holding gains (losses) on securities available for sale not other-than-temporarily-impaired, net of tax		(744	)			74				147
	Fair value adjustment on derivatives		1,873				(211	)			(2,631	)
	Income tax effect		(655	)			74				921
			1,218				(137	)			(1,710	)
	Other comprehensive income (loss) of bank subsidiary		(20,962	)			4,262				7,133
	Total comprehensive income (loss), net of tax		(20,488	)			4,199				5,570
	Net comprehensive income (loss) before noncontrolling interest		(4,634	)			20,021				21,391
	Less: net income attributable to the noncontrolling interest		510				919				911
	Net comprehensive income (loss) attributable to ESB Financial Corporation	$	(5,144	)		$	19,102			$	20,480
Schedule of Condensed Statements of Cash Flows	'
	Condensed Statements of Cash Flows
	(Dollar amounts in thousands)	2013				2012				2011
	Operating activities:
	Net income	$	15,344			$	14,903			$	14,910
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed earnings of subsidiaries		(7,007	)			(6,356	)			(1,664	)
	Net realized gain on securities available for sale		(256	)			(629	)			(141	)
	Other than temporary impairment losses on securities available for sale		-				26				317
	Compensation expense on ESOP and MRP		1,823				1,602				1,445
	Other, net		928				1,148				(2,190	)
	Net cash provided by operating activities		10,832				10,694				12,677
	Investing activities:
	Purchases of securities		(9,533	)			(14,411	)			(6,733	)
	Principal repayments of securities		8,652				9,405				7,698
	Proceeds from the sale of securities available for sale		449				1,342				204
	Net cash (used in) provided by investing activities		(432	)			(3,664	)			1,169
	Financing activities:
	Redemption of junior subordinated notes		(10,310	)			-				-
	Proceeds from long term borrowings		10,000				-				-
	Repayments of long term borrowings		(1,000	)			(5,200	)			-
	Proceeds received from exercise of stock options		1,603				794				832
	Dividends paid		(4,999	)			(7,321	)			(5,409	)
	Payments to acquire treasury stock		(619	)			(541	)			(4,754	)
	Stock purchased by ESOP		(425	)			(329	)			(504	)
	Net cash used in financing activities		(5,750	)			(12,597	)			(9,835	)
	(Decrease) increase in cash equivalents		4,650				(5,567	)			4,011
	Cash equivalents at beginning of period		1,091				6,658				2,647
	Cash equivalents at end of period	$	5,741			$	1,091			$	6,658

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
	Segment				Contract
	Branches
	Residential
	Contract
	Office
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Real estate development and construction maximum family residential units	4	'	'	'	'
Real estate development and construction minimum family residential units	1	'	'	'	'
Number of full service banking branches	23	'	'	'	'
Number of loan production offices	1	'	'	'	'
Number of operating segment	1	'	'	'	'
Reserves at Federal Reserve Bank Average	$589,000	$1,000,000	'	'	'
Unrealized Losses	15.00%	'	'	'	'
Interest income is not accrued for loans delinquent	'90 days or greater	'	'	'	'
Non-accrual loan placed back on accrual status delinquency	'Less than 90 days	'	'	'	'
Loans experiencing insignificant payment delays	'Less than 90 days	'	'	'	'
Larger commercial loans and commercial real estate loans	'60 days	'	'	'	'
Consumer loans charged down to the fair value of collateral securing the asset due for open-end loans	'180 days	'	'	'	'
Consumer loans charged down to the fair value of collateral securing the asset due for closed-end loans	'120 days	'	'	'	'
Consumer loans charged down to the net realizable value	'90 days	'	'	'	'
Par value of Federal Home Loan Bank Stock	100	'	'	'	'
Impairment of FHLB stock	0	0	'	'	'
Goodwill	41,599,000	41,599,000	'	'	'
Core deposit intangible Assets are Amortized	'10 years	'	'	'	'
Amortization of finite lived assets expected on the year 2014	110,000	'	'	'	'
Amortization of finite lived assets expected on the year 2015	8,000	'	'	'	'
Fair value of the servicing asset	9,000	'	'	'	'
Company recovered a portion of the impairment valuation	3,000	'	'	'	'
Remaining impairment valuation	12,000	15,000	24,000	'	'
Amortization taken on the servicing asset	8,000	10,000	14,000	'	'
Total loans serviced	4,300,000	5,800,000	10,200,000	'	'
Advertising expenses	663,000	613,000	612,000	'	'
Interest rate cap contracts outstanding	22	'	'	'	'
Interest payment in junior subordinated notes	35,000,000	'	'	'	'
Number of interest rate swap contracts	'	'	'	'	2
Minimum cumulative percentage change in anticipated cash flows	80.00%	'	'	'	'
Maximum cumulative percentage change in anticipated cash flows	125.00%	'	'	'	'
Amounts charged to current earnings	0	'	'	'	'
Stock-based compensation expense	747,000	575,000	377,000	'	'
Tax benefit from compensation expense	296,000	73,000	1,000	'	'
Share based compensation expense recognized, years	'3 years	'1 year	'2 years	'1 year	'
Tax benefits which have been classified as financing cash inflows	45,000	48,000	55,000	'	'
Weighted average fair value of stock option granted	$3.86	$3.04	$3.28	'	'
Total intrinsic value of options exercised	361,000	229,000	287,000	'	'
Total intrinsic value of in-the-money stock options	3,700,000	3,100,000	2,500,000	'	'
Total intrinsic value of the exercisable stock options	2,300,000	2,000,000	1,600,000	'	'
Unallocated shares controlled by the ESOP	200,569	296,096	395,587	'	'
Interest Rate Swaps [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Interest payment in junior subordinated notes	'	'	'	'	35,000,000
Interest Rate Caps [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Interest payment in junior subordinated notes	230,000,000	'	'	'	'
Core Deposits [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Core deposit intangible	118,000	288,000	'	'	'
Two Thousand Ten Grant [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	98,000	'	'	'	'
Two Thousand Eleven Grant [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	163,000	'	'	'	'
Two Thousand Twelve Grant [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	111,000	'	'	'	'
Two Thousand Twelve Grant [Member] | Employee Stock [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	243,000	'	'	'	'
Two Thousand Thirteen Grant [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	296,000	'	'	'	'
Two Thousand Thirteen Grant [Member] | Employee Stock [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Unrecognized compensation cost	$420,000	'	'	'	'
Expiration November 2020 [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Options to purchase shares	32,526	'	'	'	'
Price per share	$10.35	'	'	'	'
Expire date of option purchase	'2020-11	'	'	'	'
Expiration November 2021 [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Options to purchase shares	51,995	'	'	'	'
Price per share	$11	'	'	'	'
Expire date of option purchase	'2021-11	'	'	'	'
Expiration November 2022 [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Options to purchase shares	122,068	'	'	'	'
Price per share	$10.50	'	'	'	'
Expire date of option purchase	'2022-11	'	'	'	'
Expiration November 2023 [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Options to purchase shares	191,192	'	'	'	'
Price per share	$13.36	'	'	'	'
Expire date of option purchase	'2023-11	'	'	'	'
Minimum [Member] | Building [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives	'25 years	'	'	'	'
Minimum [Member] | Furniture and Equipment [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives	'3 years	'	'	'	'
Maximum [Member] | Building [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives	'50 years	'	'	'	'
Maximum [Member] | Furniture and Equipment [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Estimated useful lives	'10 years	'	'	'	'
Maximum [Member] | Cash Equivalents [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Interest-earning deposits with original maturities	'120 days	'	'	'	'
AMSCO Inc [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Ownership percentage	51.00%	'	'	'	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Summary of Interest Rate Swap Contract (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Derivative [Line Items]	'
Notional Amount	$35,000
Unrealized Loss	3,869
4.18 % Cash Flow Hedge [Member]	'
Derivative [Line Items]	'
Notional Amount	20,000
Effective Date	10-Feb-11
Pay Rate	4.18%
Receive Rate	0.28%
Maturity Date	10-Feb-18
Unrealized Loss	2,306
3.91 % Cash Flow Hedge [Member]	'
Derivative [Line Items]	'
Notional Amount	15,000
Effective Date	10-Feb-11
Pay Rate	3.91%
Receive Rate	0.28%
Maturity Date	10-Feb-18
Unrealized Loss	$1,563

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Schedule of Fair Value of Stock Option Granted (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accounting Policies [Abstract]	'	'	'
Volatility	39.45%	39.70%	39.52%
Interest Rates	1.62%	1.24%	1.58%
Dividend Yields	2.99%	3.17%	3.03%
Weighted Average Life ( in years)	'5 years 6 months	'7 years	'7 years

Summary_of_Significant_Account6

Summary of Significant Accounting Policies - Summary of Net Income Per Share (Detail) (USD $)

3 Months Ended

12 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Accounting Policies [Abstract]

'

'

'

'

'

'

'

'

'

'

'

Net income

$3,783

$3,971

$3,876

$3,714

$3,503

$3,934

$3,681

$3,785

$15,344

$14,903

$14,910

Weighted-average common shares outstanding

'

'

'

'

'

'

'

'

17,386,160

[1]

17,215,229

[1]

17,326,252

[1]

Basic earnings per share

$0.22

$0.23

$0.22

$0.21

$0.21

$0.23

$0.22

$0.22

$0.88

[1]

$0.87

[1]

$0.86

[1]

Weighted-average common shares outstanding

'

'

'

'

'

'

'

'

17,386,160

[1]

17,215,229

[1]

17,326,252

[1]

Common stock equivalents due to effect of stock options

'

'

'

'

'

'

'

'

189,000

148,000

139,000

Total weighted-average common shares and equivalents

'

'

'

'

'

'

'

'

17,575,278

[1]

17,362,875

[1]

17,466,180

[1]

Diluted earnings per share

$0.21

$0.23

$0.22

$0.21

$0.21

$0.23

$0.21

$0.22

$0.87

[1]

$0.86

[1]

$0.85

[1]

[1]

Outstanding shares and per share data have been adjusted for years 2012 and 2011 to reflect a six-for five stock split of the common stock paid on May 17, 2013.

Available_for_Sale_Securities_1

Available for Sale Securities - Summary of available for sale securities (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$1,051,311	$1,065,447
Unrealized gains	30,234	55,144
Unrealized losses	-18,529	-9,815
Fair value	1,063,016	1,110,776
Trust Preferred Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	45,589	45,894
Unrealized gains	225	367
Unrealized losses	-6,908	-8,234
Fair value	38,906	38,027
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	178,579	177,414
Unrealized gains	5,310	13,717
Unrealized losses	-4,149	-244
Fair value	179,740	190,887
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	953	1,142
Unrealized gains	968	676
Fair value	1,921	1,818
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	201,268	219,700
Unrealized gains	5,313	7,186
Unrealized losses	-361	-1,091
Fair value	206,220	225,795
U.S. Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	623,134	617,158
Unrealized gains	18,397	33,021
Unrealized losses	-7,107	-246
Fair value	634,424	649,933
Private Label [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,788	4,139
Unrealized gains	21	177
Unrealized losses	-4	'
Fair value	1,805	4,316
Subtotal Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	624,922	621,297
Unrealized gains	18,418	33,198
Unrealized losses	-7,111	-246
Fair value	$636,229	$654,249

Available_for_Sale_Securities_2

Available for Sale Securities - Additional Information (Detail) (USD $)	3 Months Ended							12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
									Equity	Equity
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Proceeds from the sale of securities	'	'	'	'	'	'	'	$10,300,000	$3,700,000	$25,400,000
Gross realized gains from sale of securities	374,000	58,000	198,000	268,000	282,000	197,000	267,000	898,000	746,000	937,000
Company recorded impairment charges	'	'	'	'	'	'	'	310,000	31,000	447,000
Number of equity investments in various banks	'	'	'	'	'	'	'	'	1	5
Fair value, Securities	1,063,016,000	'	'	'	1,110,776,000	'	'	1,063,016,000	1,110,776,000	'
Fair value was not investment-grade rated	2,500,000	'	'	'	'	'	'	2,500,000	'	'
Exceeded book value corporate bonds	10.00%	'	'	'	10.00%	'	'	10.00%	10.00%	'
Carrying values of securities	309,900,000	'	'	'	229,000,000	'	'	309,900,000	229,000,000	'
CDO [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Company recorded impairment charges	'	'	'	'	'	'	'	310,000	5,000	78,000
Fair value, Securities	2,500,000	'	'	'	2,500,000	'	'	2,500,000	2,500,000	2,500,000
Covered fund securities, divestment date	21-Jul-15	'	'	'	'	'	'	21-Jul-15	'	'
Private Label [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Fair value, Securities	1,800,000	'	'	'	4,300,000	'	'	1,800,000	4,300,000	'
Company recorded impairment charges	'	'	'	'	'	'	'	'	'	52,000
Fair value, Securities	1,805,000	'	'	'	4,316,000	'	'	1,805,000	4,316,000	'
Equity Securities [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Company recorded impairment charges	'	'	'	'	'	'	'	'	26,000	317,000
Fair value, Securities	1,921,000	'	'	'	1,818,000	'	'	1,921,000	1,818,000	'
Non Credit Related Securities [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Company recorded impairment charges	'	'	'	'	'	'	'	0	375,000	548,000
Non Credit Related OTTI [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Securities recognized in AOCI	'	'	'	'	'	'	'	0	'	'
Trust Preferred Securities [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Fair value, Securities	38,906,000	'	'	'	38,027,000	'	'	38,906,000	38,027,000	'
Credit Related Securities [Member]	'	'	'	'	'	'	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'	'	'	'	'	'	'
Company recorded impairment charges	'	'	'	'	'	'	'	310,000	31,000	447,000
Equity method investments, book value	$192,000	'	'	'	$608,000	'	'	$192,000	$608,000	$2,100,000

Available_for_Sale_Securities_3

Available for Sale Securities - Schedule of the Amounts Recognized in Earnings Related to Credit Losses on Securities (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments Debt And Equity Securities [Abstract]	'	'	'
Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning	$1,157	$1,152	$1,022
Credit losses on securities for which other-than-temporary impairment was not previously recognized	'	'	'
Additional increases as a result of impairment charges recognized on investments for which an OTTI charge was not previously recognized	310	5	130
Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending	$1,467	$1,157	$1,152

Available_for_Sale_Securities_4

Available for Sale Securities - Schedule of Investments Gross Unrealized Losses and Fair Value (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Security	Security
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	120	18
Less than 12 Months, Fair Value	$287,837	$48,029
Less than 12 Months, Unrealized losses	9,605	414
12 Months or more, # of Securities	21	16
12 Months or more, Fair Value	70,886	59,258
12 Months or more, Unrealized losses	8,924	9,401
Total, # of Securities	141	34
Total, Fair Value	358,723	107,287
Total, Unrealized losses	18,529	9,815
Trust Preferred Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
12 Months or more, # of Securities	8	9
12 Months or more, Fair Value	37,016	36,179
12 Months or more, Unrealized losses	6,908	8,234
Total, # of Securities	8	9
Total, Fair Value	37,016	36,179
Total, Unrealized losses	6,908	8,234
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	44	5
Less than 12 Months, Fair Value	37,243	4,179
Less than 12 Months, Unrealized losses	3,129	58
12 Months or more, # of Securities	6	2
12 Months or more, Fair Value	5,518	3,059
12 Months or more, Unrealized losses	1,020	186
Total, # of Securities	50	7
Total, Fair Value	42,761	7,238
Total, Unrealized losses	4,149	244
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	6	5
Less than 12 Months, Fair Value	20,869	15,604
Less than 12 Months, Unrealized losses	109	110
12 Months or more, # of Securities	3	5
12 Months or more, Fair Value	11,474	20,020
12 Months or more, Unrealized losses	252	981
Total, # of Securities	9	10
Total, Fair Value	32,343	35,624
Total, Unrealized losses	361	1,091
U.S. Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	69	8
Less than 12 Months, Fair Value	229,223	28,246
Less than 12 Months, Unrealized losses	6,363	246
12 Months or more, # of Securities	4	'
12 Months or more, Fair Value	16,878	'
12 Months or more, Unrealized losses	744	'
Total, # of Securities	73	8
Total, Fair Value	246,101	28,246
Total, Unrealized losses	7,107	246
Private Label [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	1	'
Less than 12 Months, Fair Value	502	'
Less than 12 Months, Unrealized losses	4	'
Total, # of Securities	1	'
Total, Fair Value	502	'
Total, Unrealized losses	4	'
Subtotal Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	70	'
Less than 12 Months, Fair Value	229,725	'
Less than 12 Months, Unrealized losses	6,367	'
12 Months or more, # of Securities	4	'
12 Months or more, Fair Value	16,878	'
12 Months or more, Unrealized losses	744	'
Total, # of Securities	74	'
Total, Fair Value	246,603	'
Total, Unrealized losses	$7,111	'

Available_for_Sale_Securities_5

Available for Sale Securities - Scheduled Maturities of Securities (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Available For Sale Securities Debt Maturities [Abstract]	'
Weighted Average Yield, Due in one year or less	2.79%
Weighted Average Yield, Due from one year to five years	2.97%
Weighted Average Yield, Due from five to ten years	3.37%
Weighted Average Yield, Due after ten years	3.14%
Weighted Average Yield, Total	3.12%
Amortized cost, Due in one year or less	$41,074
Amortized cost, Due from one year to five years	163,785
Amortized cost, Due from five to ten years	106,115
Amortized cost, Due after ten years	739,384
Amortized cost, Total	1,050,358
Fair value, Due in one year or less	41,497
Fair value, Due from one year to five years	169,767
Fair value, Due from five to ten years	107,917
Fair value, Due after ten years	741,914
Fair value, Total	$1,061,095

Loans_Receivable_Schedule_of_L

Loans Receivable - Schedule of Loans Receivable (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	$423,959	$405,895
Total commercial real estate	103,337	96,955
Subtotal mortgage loans	527,296	502,850
Total consumer loans	136,142	134,885
Commercial business	52,801	54,445
Subtotal other loans	188,943	189,330
Total loans receivable	716,239	692,180
Allowance for loan losses	6,805	6,709
Deferred loan fees and net discounts	-2,007	-1,862
Loans in process	15,805	15,247
Net loans receivable	695,636	672,086
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	341,775	326,005
Total loans receivable	341,775	326,005
Residential Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	44,327	46,418
Total loans receivable	44,327	46,418
Residential Real Estate Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	37,857	33,472
Total loans receivable	37,857	33,472
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total commercial real estate	77,366	81,077
Total loans receivable	103,337	96,955
Commercial Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total commercial real estate	25,971	15,878
Total loans receivable	25,971	15,878
Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	82,987	80,418
Total loans receivable	82,987	80,418
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	46,502	46,571
Total loans receivable	46,502	46,571
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	6,653	7,896
Total loans receivable	$6,653	$7,896

Loans_Receivable_Additional_In

Loans Receivable - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	Branches
Receivables [Abstract]	'	'
Number of offices of company	23	'
Historical loss calculation period	'3 years	'
Allowance for loan losses	$6,805,000	$6,709,000
Borrowers sustained repayment period	'6 months	'
Non-performing loans, including non-accrual loans and TDRs	8,637,000	7,393,000
Troubled debt restructuring (TDRs)	107,000	368,000
TDR with modified terms	$10,600,000	'
Maturity period of impaired loans	'90 days	'
Maturity period of Larger commercial loans	'60 days	'
Description of Loans	'Loans are considered nonaccrual upon reaching 90 days delinquency	'

Loans_Receivable_Changes_in_Al

Loans Receivable - Changes in Allowance for Loan Losses and Recorded Investment in Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	$6,709	$6,537	$6,547
Charge-offs	567	1,046	1,374
Recoveries	163	118	234
Provision	500	1,100	1,130
Ending Balance	6,805	6,709	6,537
Ending Balance	6,805	6,709	6,537
Ending balance: individually evaluated for impairment	1,061	1,164	'
Ending balance: collectively evaluated for impairment	5,744	5,545	'
Loans Receivable:	'	'	'
Ending Balance	6,805	6,709	6,537
Ending balance: individually evaluated for impairment	1,061	1,164	'
Ending balance: collectively evaluated for impairment	5,744	5,545	'
Ending Balance	716,239	692,180	'
Ending balance: individually evaluated for impairment	17,022	15,904	'
Ending balance: collectively evaluated for impairment	699,217	676,276	'
Commercial [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	550	384	784
Charge-offs	19	32	187
Recoveries	'	'	25
Provision	54	21	'
Reallocations	-62	177	-238
Ending Balance	523	550	384
Ending Balance	523	550	384
Ending balance: individually evaluated for impairment	24	'	'
Ending balance: collectively evaluated for impairment	499	550	'
Loans Receivable:	'	'	'
Ending Balance	523	550	384
Ending balance: individually evaluated for impairment	24	'	'
Ending balance: collectively evaluated for impairment	499	550	'
Ending Balance	52,801	54,445	'
Ending balance: individually evaluated for impairment	24	'	'
Ending balance: collectively evaluated for impairment	52,777	54,445	'
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	2,075	2,442	1,831
Charge-offs	7	163	'
Provision	197	85	125
Reallocations	-542	-289	486
Ending Balance	1,723	2,075	2,442
Ending Balance	1,723	2,075	2,442
Ending balance: individually evaluated for impairment	989	1,110	'
Ending balance: collectively evaluated for impairment	734	965	'
Loans Receivable:	'	'	'
Ending Balance	1,723	2,075	2,442
Ending balance: individually evaluated for impairment	989	1,110	'
Ending balance: collectively evaluated for impairment	734	965	'
Ending Balance	103,337	96,955	'
Ending balance: individually evaluated for impairment	14,385	13,414	'
Ending balance: collectively evaluated for impairment	88,952	83,541	'
Consumer [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	1,031	1,045	1,125
Charge-offs	477	562	478
Recoveries	138	101	160
Provision	108	40	275
Reallocations	254	407	-37
Ending Balance	1,054	1,031	1,045
Ending Balance	1,054	1,031	1,045
Ending balance: individually evaluated for impairment	48	54	'
Ending balance: collectively evaluated for impairment	1,006	977	'
Loans Receivable:	'	'	'
Ending Balance	1,054	1,031	1,045
Ending balance: individually evaluated for impairment	48	54	'
Ending balance: collectively evaluated for impairment	1,006	977	'
Ending Balance	136,142	134,885	'
Ending balance: individually evaluated for impairment	407	327	'
Ending balance: collectively evaluated for impairment	135,735	134,558	'
Residential [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	2,541	2,115	2,573
Charge-offs	60	289	709
Recoveries	25	17	49
Provision	266	954	655
Reallocations	224	-256	-453
Ending Balance	2,996	2,541	2,115
Ending Balance	2,996	2,541	2,115
Ending balance: individually evaluated for impairment	'	'	'
Ending balance: collectively evaluated for impairment	2,996	2,541	'
Loans Receivable:	'	'	'
Ending Balance	2,996	2,541	2,115
Ending balance: individually evaluated for impairment	'	'	'
Ending balance: collectively evaluated for impairment	2,996	2,541	'
Ending Balance	423,959	405,895	'
Ending balance: individually evaluated for impairment	2,206	2,163	'
Ending balance: collectively evaluated for impairment	421,753	403,732	'
Unallocated [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	512	551	234
Charge-offs	4	'	'
Provision	-125	'	75
Reallocations	126	-39	242
Ending Balance	509	512	551
Ending Balance	509	512	551
Ending balance: individually evaluated for impairment	'	'	'
Ending balance: collectively evaluated for impairment	509	512	'
Loans Receivable:	'	'	'
Ending Balance	509	512	551
Ending balance: individually evaluated for impairment	'	'	'
Ending balance: collectively evaluated for impairment	509	512	'
Ending Balance	'	'	'
Ending balance: individually evaluated for impairment	'	'	'
Ending balance: collectively evaluated for impairment	'	'	'

Loans_Receivable_Schedule_of_C

Loans Receivable - Schedule of Credit Exposures by Internally Assigned Grades (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$238,322	$231,290
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	220,964	210,067
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	1,682	6,338
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	15,676	14,885
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	37,857	33,472
Residential Real Estate Multi-Family [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	37,857	33,472
Residential Real Estate Multi-Family [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate Multi-Family [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate Multi-Family [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate Multi-Family [Member] | Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	44,327	46,418
Residential Real Estate, Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	40,874	41,138
Residential Real Estate, Construction [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	382	4,477
Residential Real Estate, Construction [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	3,071	803
Residential Real Estate, Construction [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Residential Real Estate, Construction [Member] | Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	77,366	81,077
Commercial Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	63,532	65,696
Commercial Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	1,283	1,334
Commercial Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	12,551	14,047
Commercial Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate [Member] | Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	25,971	15,878
Commercial Real Estate, Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	25,971	15,878
Commercial Real Estate, Construction [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate, Construction [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate, Construction [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial Real Estate, Construction [Member] | Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	52,801	54,445
Commercial [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	52,730	53,883
Commercial [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	17	527
Commercial [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	54	35
Commercial [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'
Commercial [Member] | Loss [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	'	'

Loans_Receivable_Performing_an

Loans Receivable - Performing and Nonperforming Single Family Residential and Consumer Loans Based on Payment Activity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$716,239	$692,180
Single Family Residential And Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	477,917	460,890
Single Family Residential And Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	474,014	457,023
Single Family Residential And Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	3,903	3,867
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	341,775	326,005
Residential Real Estate, Single Family [Member] | Single Family Residential And Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	341,775	326,005
Residential Real Estate, Single Family [Member] | Single Family Residential And Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	338,370	322,662
Residential Real Estate, Single Family [Member] | Single Family Residential And Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	3,405	3,343
Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	82,987	80,418
Consumer Home Equity [Member] | Single Family Residential And Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	82,987	80,418
Consumer Home Equity [Member] | Single Family Residential And Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	82,692	80,124
Consumer Home Equity [Member] | Single Family Residential And Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	295	294
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	46,502	46,571
Consumer Dealer Auto and RV Loans [Member] | Single Family Residential And Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	46,502	46,571
Consumer Dealer Auto and RV Loans [Member] | Single Family Residential And Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	46,364	46,450
Consumer Dealer Auto and RV Loans [Member] | Single Family Residential And Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	138	121
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	6,653	7,896
Consumer Other [Member] | Single Family Residential And Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	6,653	7,896
Consumer Other [Member] | Single Family Residential And Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	6,588	7,787
Consumer Other [Member] | Single Family Residential And Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$65	$109

Loans_Receivable_Summary_of_In

Loans Receivable - Summary of Information Relating to Interest Income (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]	'	'	'
Interest income that would have been recorded	$561	$488	$858
Interest income recognized	175	111	728
Interest income foregone	$386	$377	$130

Loans_Receivable_Aging_Analysi

Loans Receivable - Aging Analysis of Investment of Past Due Loans Receivable (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$1,902	$2,193
60-89 Days Past Due	598	1,262
90 Days Or Greater	8,637	7,025
Total Past Due	11,137	10,480
Current	705,102	681,700
Total loans receivable	716,239	692,180
Recorded Investment greater than 90 Days and Accruing	'	'
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	653	887
60-89 Days Past Due	319	420
90 Days Or Greater	3,405	3,343
Total Past Due	4,377	4,650
Current	337,398	321,355
Total loans receivable	341,775	326,005
Recorded Investment greater than 90 Days and Accruing	'	'
Residential Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
90 Days Or Greater	'	'
Total Past Due	'	'
Current	44,327	46,418
Total loans receivable	44,327	46,418
Recorded Investment greater than 90 Days and Accruing	'	'
Residential Real Estate Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
90 Days Or Greater	'	'
Total Past Due	'	'
Current	37,857	33,472
Total loans receivable	37,857	33,472
Recorded Investment greater than 90 Days and Accruing	'	'
Commercial Real Estate, Commercial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	53	246
60-89 Days Past Due	65	598
90 Days Or Greater	4,787	3,211
Total Past Due	4,905	4,055
Current	72,461	77,022
Total loans receivable	77,366	81,077
Recorded Investment greater than 90 Days and Accruing	'	'
Commercial Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	'
90 Days Or Greater	'	'
Total Past Due	'	'
Current	25,971	15,878
Total loans receivable	25,971	15,878
Recorded Investment greater than 90 Days and Accruing	'	'
Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	156	219
60-89 Days Past Due	65	'
90 Days Or Greater	214	223
Total Past Due	435	442
Current	82,552	79,976
Total loans receivable	82,987	80,418
Recorded Investment greater than 90 Days and Accruing	'	'
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	993	771
60-89 Days Past Due	106	230
90 Days Or Greater	136	104
Total Past Due	1,235	1,105
Current	45,267	45,466
Total loans receivable	46,502	46,571
Recorded Investment greater than 90 Days and Accruing	'	'
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	47	70
60-89 Days Past Due	43	12
90 Days Or Greater	65	109
Total Past Due	155	191
Current	6,498	7,705
Total loans receivable	6,653	7,896
Recorded Investment greater than 90 Days and Accruing	'	'
Commercial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	'	'
60-89 Days Past Due	'	2
90 Days Or Greater	30	35
Total Past Due	30	37
Current	52,771	54,408
Total loans receivable	52,801	54,445
Recorded Investment greater than 90 Days and Accruing	'	'

Loans_Receivable_Recorded_Inve

Loans Receivable - Recorded Investment and Unpaid Principal Balances for Impaired Loans Receivable (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	$17,022	$15,904
Unpaid Principal Balance	17,296	16,174
Related Allowance	1,061	1,164
Commercial Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	14,385	13,414
Unpaid Principal Balance	14,655	13,684
Related Allowance	989	1,110
Commercial Real Estate [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	3,139	5,433
Unpaid Principal Balance	3,246	5,540
Commercial Real Estate [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	11,246	7,981
Unpaid Principal Balance	11,409	8,144
Related Allowance	989	1,110
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	1,356	1,360
Unpaid Principal Balance	1,356	1,360
Residential Real Estate, Single Family [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	1,356	1,360
Unpaid Principal Balance	1,356	1,360
Residential Construction Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	850	803
Unpaid Principal Balance	850	803
Residential Construction Loans [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	850	803
Unpaid Principal Balance	850	803
Consumer Home Equity [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	249	130
Unpaid Principal Balance	253	130
Consumer Home Equity [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	149	179
Unpaid Principal Balance	149	179
Related Allowance	45	50
Consumer Dealer Auto and RV Loans [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	6	14
Unpaid Principal Balance	6	14
Consumer Dealer Auto and RV Loans [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	3	4
Unpaid Principal Balance	3	4
Related Allowance	3	4
Commercial Business Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	24	'
Unpaid Principal Balance	24	'
Related Allowance	24	'
Commercial Business Loans [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	24	'
Unpaid Principal Balance	24	'
Related Allowance	24	'
Consumer [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	407	327
Unpaid Principal Balance	411	327
Related Allowance	$48	$54

Loans_Receivable_Average_Recor

Loans Receivable - Average Recorded Investment and Interest Income Recognized on Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]	'	'	'
Interest Income Recognized	$561	$488	$858
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	13,995	13,659	8,894
Interest Income Recognized	692	634	846
Commercial Business Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	14	'	190
Interest Income Recognized	1	'	13
Residential Real Estate, Single Family [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	1,358	1,362	1,207
Interest Income Recognized	9	9	61
Residential Construction Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	883	512	'
Interest Income Recognized	33	41	'
Consumer [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	373	227	154
Interest Income Recognized	27	27	9
With No Related Allowance Recorded [Member] | Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	3,147	5,473	1,416
Interest Income Recognized	83	228	302
With No Related Allowance Recorded [Member] | Commercial Business Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	'	'	68
Interest Income Recognized	'	'	10
With No Related Allowance Recorded [Member] | Residential Real Estate, Single Family [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	1,358	1,362	1,207
Interest Income Recognized	9	9	61
With No Related Allowance Recorded [Member] | Residential Construction Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	883	512	'
Interest Income Recognized	33	41	'
With No Related Allowance Recorded [Member] | Consumer Home Equity [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	211	57	'
Interest Income Recognized	16	11	'
With No Related Allowance Recorded [Member] | Consumer Dealer Auto and RV Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	9	3	'
Interest Income Recognized	2	3	'
With an Allowance Recorded [Member] | Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	10,848	8,186	7,478
Interest Income Recognized	609	406	544
With an Allowance Recorded [Member] | Commercial Business Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	14	'	122
Interest Income Recognized	1	'	3
With an Allowance Recorded [Member] | Consumer Home Equity [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	150	166	154
Interest Income Recognized	9	12	9
With an Allowance Recorded [Member] | Consumer Dealer Auto and RV Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment	3	1	'
Interest Income Recognized	'	$1	'

Loans_Receivable_Schedule_of_L1

Loans Receivable - Schedule of Loans Receivable on Nonaccrual Status (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	$8,637	$7,393
Commercial [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	30	35
Commercial Real Estate [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	4,787	3,432
Residential [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	3,405	3,403
Consumer Home Equity [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	214	293
Consumer Dealer Auto and RV Loans [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	136	121
Consumer Other [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	$65	$109

Loans_Receivable_Summary_of_In1

Loans Receivable - Summary of Information Relating to Troubled Debt Restructuring by Class of Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Contract	Contract
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	20	17
Pre-Modification Outstanding Recorded Investment	$2,479	$1,437
Maturity Date Extension	174	1,437
Deferral of Principal Payments	'	'
Other	2,305	'
Total	2,479	1,437
Commercial Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	11	2
Pre-Modification Outstanding Recorded Investment	2,306	198
Maturity Date Extension	26	198
Deferral of Principal Payments	'	'
Other	2,280	'
Total	2,306	198
Commercial Business Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	1	'
Pre-Modification Outstanding Recorded Investment	25	'
Maturity Date Extension	'	'
Deferral of Principal Payments	'	'
Other	25	'
Total	25	'
Consumer Home Equity [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	8	7
Pre-Modification Outstanding Recorded Investment	148	168
Maturity Date Extension	148	168
Deferral of Principal Payments	'	'
Other	'	'
Total	148	168
Residential Construction Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	'	4
Pre-Modification Outstanding Recorded Investment	'	1,053
Maturity Date Extension	'	1,053
Deferral of Principal Payments	'	'
Other	'	'
Total	'	1,053
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	'	4
Pre-Modification Outstanding Recorded Investment	'	18
Maturity Date Extension	'	18
Deferral of Principal Payments	'	'
Other	'	'
Total	'	$18

Investment_Required_by_Regulat1

Investment Required by Regulation - Additional Information (Detail)	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Percentage of unpaid principal balances of residential mortgage loans	1.00%
Percentage of total assets	0.30%
Percentage of outstanding advances	5.00%

Premises_and_Equipment_Schedul

Premises and Equipment - Schedule of Major Classifications of Premises and Equipment (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Premises and equipment, gross	$32,718	$32,851
Less accumulated depreciation and amortization	19,410	18,565
Premises and equipment, net	13,308	14,286
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Premises and equipment, gross	3,377	3,444
Buildings and Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Premises and equipment, gross	19,839	19,889
Leasehold Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Premises and equipment, gross	805	795
Furniture, Fixtures and Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Premises and equipment, gross	$8,697	$8,723

Premises_and_Equipment_Additio

Premises and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property Plant And Equipment [Abstract]	'	'	'
Depreciation expense	$962,000	$1,018,000	$962,000
Lease agreements aggregate rentals 2014	77,000	'	'
Lease agreements aggregate rentals 2015	75,000	'	'
Lease agreements aggregate rentals 2016	50,000	'	'
Lease agreements aggregate rentals 2017	50,000	'	'
Lease agreements aggregate rentals 2018	50,000	'	'
Lease agreements aggregate rentals after 2018	29,000	'	'
Lease and rent expense	$82,000	$83,000	$85,000

Deposits_Summary_of_Deposits_D

Deposits - Summary of Deposits (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Noninterest-bearing deposits	$124,777	$109,964
NOW account deposits	234,163	223,736
Money Market deposits	39,688	39,255
Passbook account deposits	178,412	173,343
Time deposits	645,727	631,759
Total	$1,222,767	$1,178,057
Percentage of noninterest-bearing deposits	10.20%	9.30%
Percentage of NOW account deposits	19.20%	19.00%
Percentage of Money Market deposits	3.20%	3.30%
Percentage of Passbook account deposits	14.60%	14.70%
Percentage of Time deposits	52.80%	53.70%
Percentage of deposits, total	100.00%	100.00%

Deposits_Schedule_of_Deposits_

Deposits - Schedule of Deposits of Time Deposits Maturity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Within one year	$437,731	$375,862
After one year through two years	115,976	118,333
After two years through three years	60,045	78,492
After three years through four years	16,393	36,920
After four years through five years	10,871	17,106
Thereafter	4,711	5,046
Total	$645,727	$631,759
Within one year, Weighted average rate	67.80%	59.60%
After one year through two years, Weighted average rate	18.00%	18.70%
After two years through three years, Weighted average rate	9.30%	12.40%
After three years through four years, Weighted average rate	2.50%	5.80%
After four years through five years, Weighted average rate	1.70%	2.70%
Thereafter, Weighted average rate	0.70%	0.80%
Total, Weighted average rate	100.00%	100.00%

Deposits_Additional_Informatio

Deposits - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Time deposits of $100,000 or more	$272.10	$244.80

Deposits_Schedule_of_Interest_

Deposits - Schedule of Interest Expense by Type of Deposit Account (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest Expense Deposits [Abstract]	'	'	'
NOW account deposits	$232	$298	$556
Money Market deposits	34	47	103
Passbook account deposits	89	156	372
Time deposits	7,017	8,824	10,923
Interest Expense, Deposits	$7,372	$9,325	$11,954

Borrowed_Funds_Summary_of_Borr

Borrowed Funds - Summary of Borrowed Funds (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	2.12%	2.69%
Due beyond 12 months but within 2 years, Weighted average rate	2.14%	2.88%
Due beyond 2 years but within 3 years, Weighted average rate	0.99%	3.13%
Due beyond 3 years but within 4 years, Weighted average rate	1.34%	2.15%
Due beyond 4 years but within 5 years, Weighted average rate	3.26%	1.03%
Due beyond 5 years, Weighted average rate	'	3.61%
Due within 12 months	$101,492	$100,147
Due beyond 12 months but within 2 years	25,873	71,392
Due beyond 2 years but within 3 years	78,008	15,873
Due beyond 3 years but within 4 years	73,380	8,013
Due beyond 4 years but within 5 years	12,168	7,807
Due beyond 5 years	'	10,000
Total	290,921	213,232
Repurchase Agreements [Member]	'	'
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	2.34%	2.99%
Due beyond 12 months but within 2 years, Weighted average rate	4.12%	3.07%
Due beyond 2 years but within 3 years, Weighted average rate	'	4.12%
Due beyond 3 years but within 4 years, Weighted average rate	4.28%	'
Due beyond 4 years but within 5 years, Weighted average rate	4.49%	4.28%
Due beyond 5 years, Weighted average rate	'	4.49%
Due within 12 months	58,000	148,000
Due beyond 12 months but within 2 years	10,000	40,000
Due beyond 2 years but within 3 years	'	10,000
Due beyond 3 years but within 4 years	25,000	'
Due beyond 4 years but within 5 years	45,000	25,000
Due beyond 5 years	'	45,000
Total	138,000	268,000
ESOP Borrowings [Member]	'	'
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	4.68%	4.68%
Due beyond 12 months but within 2 years, Weighted average rate	4.68%	4.68%
Due beyond 2 years but within 3 years, Weighted average rate	4.68%	4.68%
Due beyond 3 years but within 4 years, Weighted average rate	'	4.68%
Due within 12 months	1,000	1,000
Due beyond 12 months but within 2 years	1,000	1,000
Due beyond 2 years but within 3 years	250	1,000
Due beyond 3 years but within 4 years	'	250
Total	2,250	3,250
Corporate Borrowings [Member]	'	'
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	3.75%	'
Due beyond 12 months but within 2 years, Weighted average rate	3.75%	'
Due beyond 2 years but within 3 years, Weighted average rate	3.75%	'
Due beyond 3 years but within 4 years, Weighted average rate	3.75%	'
Due beyond 4 years but within 5 years, Weighted average rate	3.75%	'
Due within 12 months	1,000	'
Due beyond 12 months but within 2 years	1,000	'
Due beyond 2 years but within 3 years	1,000	'
Due beyond 3 years but within 4 years	1,000	'
Due beyond 4 years but within 5 years	5,973	'
Total	9,973	'
Borrowings for Joint Ventures [Member]	'	'
Debt Instrument [Line Items]	'	'
Due beyond 4 years but within 5 years, Weighted average rate	'	3.75%
Due beyond 4 years but within 5 years	'	74
Total	'	74
Junior Subordinated Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Due beyond 5 years, Weighted average rate	2.06%	2.41%
Due beyond 5 years	$36,083	$46,393

Borrowed_Funds_Additional_Info

Borrowed Funds - Additional Information (Detail) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 18, 2013

Jan. 24, 2013

Jul. 23, 2008

Dec. 31, 2013

Dec. 31, 2008

Apr. 10, 2003

Dec. 31, 2013

Dec. 17, 2003

Mar. 18, 2013

Dec. 31, 2013

Feb. 10, 2005

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 10, 2003

Dec. 31, 2013

Dec. 17, 2003

Jan. 24, 2013

Trust II Preferred Securities [Member]

Trust III Preferred Securities [Member]

Trust IV Preferred Securities [Member]

Secured Debt [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Statutory Trust (Trust III) [Member]

ESB Statutory Trust (Trust III) [Member]

ESB Statutory Trust (Trust III) [Member]

ESB Capital Trust IV (Trust IV) [Member]

ESB Capital Trust IV (Trust IV) [Member]

PNC Bank [Member]

PNC Bank [Member]

Federal Home Loan Bank of Pittsburgh [Member]

Federal Home Loan Bank of Pittsburgh [Member]

WesBanco [Member]

Structured Advances [Member]

Repurchase Agreements [Member]

Repurchase Agreements [Member]

Structured REPOs [Member]

Structured REPOs [Member]

Citigroup [Member]

Citigroup [Member]

Barclays Capital [Member]

Barclays Capital [Member]

Credit Suisse [Member]

Credit Suisse [Member]

Morgan Stanley [Member]

Morgan Stanley [Member]

Variable Rate [Member]

Variable Rate [Member]

Variable Rate [Member]

Variable Rate [Member]

WesBanco Loan [Member]

Secured Debt [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Capital Trust II (Trust II) [Member]

ESB Statutory Trust (Trust III) [Member]

ESB Statutory Trust (Trust III) [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

FHLB advances

$290,921,000

$213,232,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$290,900,000

$138,000,000

$268,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Structured advances

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument variable rates basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'20.0 million in structured advances with imbedded caps at various strike rates based on the 3 month LIBOR rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

LIBOR Rate

'3 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum borrowing capacity

366,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum borrowing capacity, available for use

65,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Structured REPO's

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

138,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase agreements with flexible interest rates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase agreements with fixed interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Market value of the securities

168,800,000

318,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available for sale, cost

1,051,311,000

1,065,447,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

160,400,000

297,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Repurchase agreements, maturities

'Greater than 90 days

'Greater than 90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

REPO's with other banks

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

45,000,000

115,000,000

30,000,000

40,000,000

43,000,000

83,000,000

20,000,000

30,000,000

'

'

'

'

'

Risk related to repurchase agreement amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

8,100,000

'

6,900,000

'

12,400,000

'

3,400,000

'

'

'

'

'

'

Weighted average maturity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'23 months

'

'43 months

'

'33 months

'

'6 months

'

'

'

'

'

'

Average borrowings under REPO

173,000,000

305,500,000

356,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum month-end outstanding amount

258,000,000

343,000,000

368,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit loan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36,000,000

'

100,000,000

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

20,100,000

27,500,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate

'

'

'

'

'

'

'

'

'

'

5.55%

'

'

'

'

'

'

'

'

0.25%

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving line of credit loan, expire date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30-Apr-14

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit, description

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'1 month LIBOR plus 2.75% with a floor of 3.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities interest rate

'

'

'

3.25%

2.95%

1.82%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit, interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000,000

'

5,000,000

'

Liquidation preference per share

'

'

'

'

'

'

'

'

'

'

'

$1,000

'

$1,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of common securities

'

'

'

'

'

'

'

'

'

310,000

'

'

155,000

'

'

1,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities variable interest rate

'

'

'

'

'

'

'

'

'

'LIBOR plus 3.25%

'

'

'LIBOR Index plus 2.95%

'

'

'Three month LIBOR plus 1.82%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Subordinated debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

36,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,300,000

'

5,200,000

'

'

Maturity date of subordinated debt start date range

'

'

'

'

'

'

'

'

'

24-Apr-08

'

'

17-Dec-08

'

'

10-Feb-11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturity date of subordinated debt end date range

'

'

'

'

'

'

'

'

'

24-Apr-33

'

'

17-Dec-33

'

'

10-Feb-35

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Subordinated debt redemption description

'The Company may redeem in whole, but not in part, the subordinated debt at any time within 90 days following the occurrence of such event

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Redeemed preferred securities

'

'

'

'

'

'

'

5,000,000

5,000,000

'

'

'

'

'

5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from bank loan

'

'

'

'

'

'

'

10,000,000

14,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans Payable

'

'

'

'

'

'

'

'

'

'

9,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized deferred debt issuance costs

'

'

'

'

'

'

'

'

'

0

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fixed interest rate

'

'

'

'

'

6.03%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.75%

Maturity of redemption of subordinated debt

'

'

'

'

'

'90 days

'

'

'

'

'

'

'90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from bank loan

'

'

'

'

'

'

$10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities fixed interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'6.03% for six years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturity year of preferred securities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'30 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities maturity period

'Six years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Schedule_of_Provi

Income Taxes - Schedule of Provision for Income Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current expense:	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	$3,065	$3,578	$5,170
State	'	'	'	'	'	'	'	'	140	48	31
Total	'	'	'	'	'	'	'	'	3,205	3,626	5,201
Deferred benefit:	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	114	-412	-1,758
State	'	'	'	'	'	'	'	'	22	22	-63
Total	$810	$763	$956	$811	$799	$793	$799	$845	$3,341	$3,236	$3,380

Income_Taxes_Schedule_of_Incom

Income Taxes - Schedule of Income Tax Amounts Recorded to Stockholder's Equity (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Income tax effect	$12,331	($4,072)	($4,350)
Income tax effect	-655	74	921
Net unrecognized pension cost (benefit)	-81	14	15
Compensation expense for tax purposes in excess of amounts recognized for financial statement purposes	47	48	55
Total	$11,642	($3,936)	($3,315)

Income_Taxes_Tax_Effects_of_As

Income Taxes - Tax Effects of Assets and Liabilities Included in Net Deferred Tax (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:	'	'
Allowances for losses on loans and real estate owned	$2,432,000	$2,369,000
Minimum tax credit carry forward	3,851,000	3,834,000
Writedown of debt	1,255,000	1,305,000
Real estate acquired through foreclosure, net	176,000	213,000
State net operating loss carryover	556,000	568,000
Defined benefit plans	244,000	325,000
Mortgage servicing rights	1,000	3,000
Investment in joint ventures	906,000	1,210,000
Interest rate swaps	2,515,000	3,733,000
Other	2,612,000	2,407,000
Total gross deferred tax assets	14,548,000	15,967,000
Less state valuation allowance	244,000	234,000
Deferred tax assets after valuation allowance	14,304,000	15,733,000
Deferred tax liabilities:	'	'
Investment in securities available for sale	5,257,000	17,588,000
Accretion of discounts	3,000	3,000
Core deposit intangible	41,000	101,000
Purchase price adjustments	41,000	63,000
Other	225,000	218,000
Gross deferred tax liabilities	5,567,000	17,973,000
Net deferred tax (liability)	$8,737,000	($2,240,000)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax [Line Items]	'	'	'
Alternative minimum tax credit	$3,851,000	$3,834,000	'
State net operating loss carryforward	556,000	568,000	'
Valuation allowance for state deferred tax assets	244,000	234,000	'
Statutory federal income tax rate	35.00%	35.00%	35.00%
Retained earnings	'	17,700,000	'
Deferred income taxes	0	'	'
Liability for uncertain tax positions	0	'	'
Unrecognized tax benefits	0	'	'
Phsb Financial Corporation [Member]	'	'	'
Income Tax [Line Items]	'	'	'
State net operating loss carryforward	$3,600,000	'	'

Income_Taxes_Reconciliation_of

Income Taxes - Reconciliation of Federal Income Tax Rate (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Tax at statutory rate	35.00%	35.00%	35.00%
(Decrease) increase resulting from:	'	'	'
Tax free income, net of interest disallowance	-14.00%	-14.20%	-12.60%
State income taxes, net of Federal income tax benefit	0.50%	0.20%	0.10%
Earnings of BOLI	-1.10%	-1.20%	-1.30%
Other, net	-2.50%	-1.90%	-2.70%
Effective rate	17.90%	17.80%	18.50%

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Nov. 30, 2011

31-May-05

31-May-04

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Nov. 30, 2013

Nov. 30, 2012

Nov. 30, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Directors

Directors' Retirement Plan [Member]

Directors' Retirement Plan [Member]

SERP [Member]

SERP [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Management Recognition Plan [Member]

Management Recognition Plan [Member]

Management Recognition Plan [Member]

Management Recognition Plan [Member]

Management Recognition Plan [Member]

Management Recognition Plan [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Excess Benefit Plan [Member]

ESB Financial Corporation Directors Retirement Plan [Member]

SERP [Member]

ESB Financial Corporation Directors Retirement Plan [Member]

SERP [Member]

Pension Plans, Postretirement and Other Employee Benefits [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employees contribution in stock of the company

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of eligible compensation, matched 100% by employer

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of eligible compensation, matched 50% by employer

'

'

'

'

'

'

'

2.00%

'

'

6.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employer match of employee contributions of first 1% of eligible compensation (as a percent)

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employer match of employee contributions of next 2% and 6% of eligible compensation (as a percent)

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employer contribution of employees retirement plan

$298,000

$313,000

$286,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee stock ownership plan benefit of employees after two years service

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee stock ownership plan benefit of employees after three years service

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee stock ownership plan benefit of employees after four years service

75.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee stock ownership plan benefit of employees after five years service

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ESOP's loan payable bears a weighted-average interest rate

4.68%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ESOP's loan maturity

'2016

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividends received on unallocated ESOP shares

108,044

169,899

111,622

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Company contribution of unallocated ESOP Shares

1,500,000

1,300,000

1,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest incurred on the loan by ESOP

134,257

181,122

205,562

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Company recognized compensation expense related to the ESOP

1,594,000

1,432,000

1,309,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total shares held to ESOP

2,811,955

2,691,012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unallocated shares controlled by the ESOP

200,569

296,096

395,587

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ESOP fair value of shares

2,848,080

3,422,367

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ESOP shares released for allocation

95,527

99,491

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional shares purchased by company Employee Stock Ownership Plan

34,073

30,108

52,436

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost of additional shares released for allocation

425,000

329,000

504,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum vesting period of stock option

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares held in Management Recognition Plan

13,330

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

96,790

Shares awarded to eligible individuals

'

'

'

'

'

'

'

'

'

'

'

'

'

19,042

840

37,740

'

'

'

26,196

33,330

88,955

'

'

'

'

Shares vested on the date of the grant

'

'

'

'

'

'

'

'

'

'

'

'

'

1,904

90

5,784

'

'

'

5,238

6,662

8,896

'

'

'

'

Shares subsequently vested

'

'

'

'

'

'

'

'

'

'

'

'

'

3,808

750

27,870

13,330

'

'

20,958

6,665

'

20,003

'

'

'

Shares forfeited

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,086

'

'

'

'

'

'

'

'

'

'

Price on the grant date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$11.04

$10.68

'

'

'

'

'

'

'

'

'

'

Fair value of the shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000

403,000

'

'

'

'

'

'

'

'

'

'

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Remaining Shares Vested Subsequently

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17,788

62,271

'

'

'

Compensation expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

21,000

37,000

'

'

'

211,000

150,000

106,000

'

Expected compensation expense on 2014

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

'

'

'

'

'

211,000

'

'

'

Expected compensation expense on 2015

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

'

'

'

'

'

213,000

'

'

'

Expected compensation expense on 2016

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

'

'

'

'

'

214,000

'

'

'

Expected compensation expense on 2017

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

'

'

'

'

'

151,000

'

'

'

Expected compensation expense on 2018

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,000

'

'

'

'

'

91,000

'

'

'

Expected compensation expense, thereafter

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

42,000

'

'

'

'

'

181,000

'

'

'

Number of days taken to credit supplemental benefits received

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'180 days

Annual retirement benefit age

'

'

'

'75 years

'

'

'

'

'

'65 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual retirement benefit percentage

'

'

'

'

'

'

'

'

'

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Targeted benefit percentage

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Benefit plan premium equally paid

'

'

'

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Benefit payable upon early retirement

'

'

'

'

'

'

'

'

'

'Age 50 with at least twelve years of service

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Service needed to lesser benefit payable upon early retirement

'

'

'

'

'

'

'

'

'

'12 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Participants credited service under benefit plans

'

'

'

'

'

'

'

'

'

'23 years

'

'

'35 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Service period to get retirement benefit

'

'

'

'

'

'

'

'

'5 years

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Retirement benefit calculation ratio

'

'

'

'

'

'

'

'

25.00%

'

'

80.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Years of service required for ratios

'

'

'

'

'

'

'

'

'10 years

'

'

'20 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of director eligible for the benefit under defined benefit plan

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated benefit obligation for the director's retirement plan

'

'

'

777,000

793,000

2,700,000

2,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated net loss

1,000

86,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Projected benefit payments on 2014

'

'

'

128,000

'

85,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Projected benefit payments on 2015

'

'

'

134,000

'

85,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Projected benefit payments on 2016

'

'

'

134,000

'

85,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Projected benefit payments on 2017

'

'

'

135,000

'

290,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Projected benefit payments on 2018

'

'

'

136,000

'

245,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected compensation expense, thereafter

'

'

'

$172,000

'

$4,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee_Benefit_Plans_Stock_O

Employee Benefit Plans - Stock Option Activities under the Option Plans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation And Retirement Disclosure [Abstract]	'	'	'
Options Outstanding, Beginning Balance	1,195,661	1,102,325	1,201,410
Options, Granted	258,990	259,596	141,266
Options, Exercised	-161,811	-112,105	-146,334
Options, Forfeited	-19,750	-54,155	-94,018
Options Outstanding, Ending Balance	1,273,090	1,195,661	1,102,325
Options, Exercisable	875,309	827,640	793,846
Options Outstanding Weighted Average Exercise Price/Share, Beginning Balance	$9.51	$9.08	$8.53
Options Granted, Weighted Average Exercise Price/Share	$13.36	$10.50	$10.99
Options Exercised, Weighted Average Exercise Price/Share	$9.88	$7.93	$7.34
Options Forfeited, Weighted Average Exercise Price/Share	$9.86	$8.78	$7.68
Options Outstanding Weighted Average Exercise Price/Share, Ending Balance	$10.24	$9.51	$9.08
Options Exercisable, Weighted Average Exercise Price/Share	$9.47	$9.13	$8.78

Employee_Benefit_Plans_Schedul

Employee Benefit Plans - Schedule of Characteristics of Issued Stock Options (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	1,273,090	1,195,661	1,102,325	1,201,410
Exercise Price	$10.24	$9.51	$9.08	$8.53
Average Remaining Contractual Life (in years)	'6 years 8 months 12 days	'	'	'
2004 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	78,133	'	'	'
Exercise Price	$10.08	'	'	'
Average Remaining Contractual Life (in years)	'10 months 24 days	'	'	'
2005 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	68,534	'	'	'
Exercise Price	$8.48	'	'	'
Average Remaining Contractual Life (in years)	'1 year 3 months 18 days	'	'	'
2005 Additional [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	17,709	'	'	'
Exercise Price	$8.61	'	'	'
Average Remaining Contractual Life (in years)	'1 year 3 months 18 days	'	'	'
2006 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	59,355	'	'	'
Exercise Price	$7.47	'	'	'
Average Remaining Contractual Life (in years)	'2 years 10 months 24 days	'	'	'
2007 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	57,492	'	'	'
Exercise Price	$7.03	'	'	'
Average Remaining Contractual Life (in years)	'3 years 10 months 24 days	'	'	'
2008 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	69,768	'	'	'
Exercise Price	$7.16	'	'	'
Average Remaining Contractual Life (in years)	'4 years 10 months 24 days	'	'	'
2009 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	118,668	'	'	'
Exercise Price	$8.02	'	'	'
Average Remaining Contractual Life (in years)	'5 years 10 months 24 days	'	'	'
2010 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	162,274	'	'	'
Exercise Price	$10.35	'	'	'
Average Remaining Contractual Life (in years)	'6 years 10 months 24 days	'	'	'
2011 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	129,686	'	'	'
Exercise Price	$11	'	'	'
Average Remaining Contractual Life (in years)	'7 years 10 months 24 days	'	'	'
2012 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	252,481	'	'	'
Exercise Price	$10.50	'	'	'
Average Remaining Contractual Life (in years)	'8 years 10 months 24 days	'	'	'
2013 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Options Outstanding	258,990	'	'	'
Exercise Price	$13.36	'	'	'
Average Remaining Contractual Life (in years)	'9 years 10 months 24 days	'	'	'

Employee_Benefit_Plans_Schedul1

Employee Benefit Plans - Schedule of Changes in the Stock for the MRP and RSP (Detail) (Non Vested Restricted Stock [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Non Vested Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Nonvested restricted stock outstanding, Beginning Balance	113,068	97,200	3,306
Granted	26,196	33,332	108,000
Vested	-22,703	-17,464	-13,956
Forfeited	'	'	-150
Nonvested restricted stock outstanding, Ending Balance	116,561	113,068	97,200

Employee_Benefit_Plans_Schedul2

Employee Benefit Plans - Schedule of the Obligation and Funded Status (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Directors' Retirement Plan [Member]	'	'	'
Change in benefit obligation	'	'	'
Benefit obligation at beginning of year	$827	$829	'
Service cost	4	6	5
Interest cost	29	34	41
Actuarial losses	8	30	'
Benefits paid	-41	-72	'
Benefit obligation at end of year	827	827	829
Change in plan assets	'	'	'
Fair value of plan assets at beginning of year	'	'	'
Employer contributions	41	72	'
Benefits paid	-41	-72	'
Fair value of plan assets at end of year	'	'	'
Funded Status	-827	-827	'
Amounts recognized in accumulated other comprehensive income, net consist of:	'	'	'
Net loss	61	56	'
Prior service cost	'	'	'
Transition obligation	'	'	'
Total	61	56	'
SERP [Member]	'	'	'
Change in benefit obligation	'	'	'
Benefit obligation at beginning of year	2,960	2,678	'
Service cost	99	81	64
Interest cost	112	120	123
Actuarial losses	-93	166	'
Benefits paid	-85	-85	'
Benefit obligation at end of year	2,993	2,960	2,678
Change in plan assets	'	'	'
Fair value of plan assets at beginning of year	'	'	'
Employer contributions	85	85	'
Benefits paid	-85	-85	'
Fair value of plan assets at end of year	'	'	'
Funded Status	-2,993	-2,960	'
Amounts recognized in accumulated other comprehensive income, net consist of:	'	'	'
Net loss	335	465	'
Prior service cost	'	'	'
Transition obligation	81	108	'
Total	$416	$573	'

Employee_Benefit_Plans_Schedul3

Employee Benefit Plans - Schedule of Net Periodic Pension Cost for Retirement Plan (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Directors' Retirement Plan [Member]	'	'	'
Net Periodic Pension Cost	'	'	'
Service cost	$4	$6	$5
Interest cost	29	34	41
Amortization of transition obligation	'	'	'
Amortization of net loss	'	'	'
Amortization of prior service cost	'	33	87
Net periodic pension cost	33	73	133
Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive income (loss)	'	'	'
Net actuarial loss/ (gain)	5	-7	11
Amortization of transition obligation	'	'	'
Amortization of prior service cost	'	-22	-57
Total recognized in other comprehensive income	5	29	-46
SERP [Member]	'	'	'
Net Periodic Pension Cost	'	'	'
Service cost	99	81	64
Interest cost	112	120	123
Amortization of transition obligation	41	41	41
Amortization of net loss	105	81	55
Amortization of prior service cost	'	'	'
Net periodic pension cost	357	323	283
Other changes in plan assets and benefit obligations recognized in accumulated other comprehensive income (loss)	'	'	'
Net actuarial loss/ (gain)	-128	51	101
Amortization of transition obligation	-27	-29	-27
Amortization of prior service cost	'	'	'
Total recognized in other comprehensive income	$155	$22	$74

Employee_Benefit_Plans_Schedul4

Employee Benefit Plans - Schedule of the Weighted Average Assumptions Used to Determine Benefit Obligations and Net Periodic Pension Cost (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Directors' Retirement Plan [Member]	'	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'
Discount rate	4.75%	4.50%
Rate of compensation increase	4.00%	2.50%
SERP [Member]	'	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'	'
Discount rate	4.25%	4.13%
Rate of compensation increase	4.00%	4.00%

Other_Comprehensive_Income_los2

Other Comprehensive Income (loss) - Summary of Amounts Recognized in Other Comprehensive Income Loss (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Available-for-sale securities	'	'	'
Realized gain on sale of securities	($898,000)	($746,000)	($937,000)
Impairment losses on investment securities	310,000	31,000	447,000
Available-for-sale securities, Total before tax	-588,000	-715,000	-490,000
Provision for income tax expense	206,000	250,000	167,000
Available-for-sale securities, Net of tax	-382,000	-465,000	-323,000
Defined benefit pension plan items	'	'	'
Amortization of transition obligations	41,000	41,000	41,000
Amortization of prior service costs	146,000	155,000	183,000
Amortization of actuarial gains/(losses)	105,000	81,000	55,000
Defined benefit pension plan items, Total before tax	146,000	155,000	183,000
Defined benefit pension plan items, Provision for income tax expense	-81,000	14,000	15,000
Defined benefit pension plan items, Net of tax	95,000	101,000	119,000
Total reclassifications	-287,000	-364,000	-204,000
Accumulated Defined Benefit Plans Adjustment [Member]	'	'	'
Defined benefit pension plan items	'	'	'
Defined benefit pension plan items, Provision for income tax expense	-51,000	-54,000	-64,000
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'
Defined benefit pension plan items	'	'	'
Amortization of prior service costs	'	$33,000	$87,000

Other_Comprehensive_Income_los3

Other Comprehensive Income (loss) - Summary of Comprehensive Income Loss (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]	'	'	'
Beginning balance, Gains/(losses) on Cash Flow Hedges	($3,733)	($3,595)	($1,886)
Other comprehensive income/(loss) before reclassification, Gains/(losses) on Cash Flow Hedges	1,218	-138	-1,709
Amounts reclassified from AOCI, Gains/(losses) on Cash Flow Hedges	'	'	'
Ending balance, Gains/(losses) on Cash Flow Hedges	-2,515	-3,733	-3,595
Beginning balance, Unrealized gains/(losses) on available-for-sale securities	29,464	25,102	17,794
Other comprehensive income/(loss) before reclassification, Unrealized gains/(losses) on available-for-sale securities	-21,474	4,827	7,631
Amounts reclassified from AOCI, Unrealized gains/(losses) on available-for-sale securities	-382	-465	-323
Ending Balance, Unrealized gains/(losses) on available-for-sale securities	7,608	29,464	25,102
Beginning balance, Defined benefit pension plan items	-628	-602	-574
Other comprehensive income/(loss) before reclassification, Defined benefit pension plan items	55	-127	-147
Amounts reclassified from AOCI, Defined benefit pension plan items	95	101	119
Ending balance, Defined benefit pension plan items	-478	-628	-602
Beginning balance, Total	25,103	20,905	15,334
Other comprehensive income/(loss) before reclassification, Total	-20,201	4,562	5,775
Amounts reclassified from AOCI, Total	-287	-364	-204
Ending balance, Total	$4,615	$25,103	$20,905

Commitments_and_Contingencies_1

Commitments and Contingencies - Schedule of Notional Amount of Company's Off-Balance Sheet Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Loans in process and commitments	$15,805,000	$15,247,000
Interest Rate Caps [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Letters of credit	230,000,000	170,000,000
Interest Rate Swaps [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Letters of credit	35,000,000	35,000,000
Standby [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Letters of credit	2,903,000	15,423,000
Commercial [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Lines of credit (unfunded)	29,009,000	21,544,000
Consumer [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Lines of credit (unfunded)	50,002,000	51,375,000
Fixed Interest Rate [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Loans in process and commitments	18,551,000	18,732,000
Variable Interest Rate [Member]	'	'
Schedule of Off-Balance Sheet Financial Instruments [Line Items]	'	'
Loans in process and commitments	$11,671,000	$13,617,000

Fair_Value_Assets_and_Liabilit

Fair Value - Assets and Liabilities Reported on Consolidated Statements of Financial Condition at Fair Value on a Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	$1,063,016	$1,110,776
U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	634,424	649,933
Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,805	4,316
Mortgage backed securities	1,800	4,300
Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	38,906	38,027
Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	179,740	190,887
Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,921	1,818
Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	206,220	225,795
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,921	1,818
Significant Other Observable Inputs (Level II) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,023,886	1,072,779
Significant Unobservable Inputs (Level III) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	37,209	36,179
Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,063,016	1,110,776
Mortgage backed securities	636,229	654,249
Total other liabilities	3,870	5,743
Total other assets	717	90
Fair Value, Measurements, Recurring [Member] | U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	634,424	649,933
Fair Value, Measurements, Recurring [Member] | Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	1,805	4,316
Fair Value, Measurements, Recurring [Member] | Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	38,906	38,027
Fair Value, Measurements, Recurring [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	179,740	190,887
Fair Value, Measurements, Recurring [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,921	1,818
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	206,220	225,795
Fair Value, Measurements, Recurring [Member] | Interest Rate Swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	3,870	5,743
Fair Value, Measurements, Recurring [Member] | Interest Rate Caps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other assets	717	90
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,921	1,818
Mortgage backed securities	'	'
Total other liabilities	'	'
Total other assets	'	'
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	'	'
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	'	'
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,921	1,818
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Interest Rate Swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	'	'
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Interest Rate Caps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other assets	'	'
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,023,886	1,072,779
Mortgage backed securities	636,229	654,249
Total other liabilities	3,870	5,743
Total other assets	717	90
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	634,424	649,933
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	1,805	4,316
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,697	1,848
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	179,740	190,887
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	206,220	225,795
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Interest Rate Swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	3,870	5,743
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level II) [Member] | Interest Rate Caps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other assets	717	90
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	37,209	36,179
Mortgage backed securities	'	'
Total other liabilities	'	'
Total other assets	'	'
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member] | U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	'	'
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member] | Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Mortgage backed securities	'	'
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member] | Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	37,209	36,179
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member] | Interest Rate Swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	'	'
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [Member] | Interest Rate Caps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other assets	'	'

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]	'	'
Credit spreads on Moody's rating	'40 to 70 basis points	'
Liquidity risk adjustments ranged	'20 to 55 basis points	'
Liquidity risk adjustments ranged, securities of 15 largest banks	'20 to 40 basis points	'
Investment in three largest banks	$18,300,000	'
Investment in three largest banks percentage	49.20%	'
Investment in Floating rate trust preferred securities	37,200,000	'
Write-downs on REO properties	$24,000	$370,000

Fair_Value_Fair_Value_Measurem

Fair Value - Fair Value Measurements Using Significant Unobservable Inputs (Level III) (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Total net realized/unrealized gains (losses) Included in earnings:	'	'
Interest income on securities	$14	$14
Net realized loss on securities available for sale	-310	-5
Significant Unobservable Inputs (Level III) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Beginning balance	36,179	35,789
Total net realized/unrealized gains (losses) Included in earnings:	'	'
Interest income on securities	14	14
Net realized loss on securities available for sale	-310	-5
Included in other comprehensive income	1,326	381
Transfers in and/or out of Level III	'	'
Purchases, issuances, sales and settlements	'	'
Purchases	'	'
Issuances	'	'
Sales	'	'
Settlements	'	'
Ending balance	$37,209	$36,179

Fair_Value_Changes_in_Unrealiz

Fair Value - Changes in Unrealized Gains and Losses Recorded in Earnings for Level III Assets and Liabilities (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Abstract]	'	'
Interest income on securities	$14	$14
Net realized loss on securities available for sale	-310	-5
Total	($296)	$9

Fair_Value_Schedule_of_Fair_Va

Fair Value - Schedule of Fair Value Level III Assets Measured at Fair Value on a Recurring or Non-Recurring Basis (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Servicing Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value of Assets	9	14
Valuation Technique	'Discounted Cash Flow	'
Significant Unobservable Inputs	'Remaining term	'
Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value of Assets	15,961	14,740
Valuation Technique	'Appraisal of collateral	'
Real Estate Acquired Through Foreclosure [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value of Assets	1,977	2,441
Valuation Technique	'Appraisal of collateral	'
Trust Preferred Securities Credit Spreads [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Significant Unobservable Inputs	'Credit Spreads	'
Trust Preferred Securities Liquidity Risk Adjustments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Significant Unobservable Inputs	'Liquidity Risk Adjustments	'
Trust Preferred Securities Default Rates [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Significant Unobservable Inputs	'Default Rates	'
Impaired Loans Appraisal Value and Liquidation Expense [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Significant Unobservable Inputs	'Appraisal value and liquidation expense	'
Servicing Assets Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Significant Unobservable Inputs	'Discount Rate	'
Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value of Assets	37,209	36,179
Valuation Technique	'Discounted Cash Flow	'
Minimum [Member] | Servicing Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'1 year 3 months	'2 months 12 days
Minimum [Member] | Trust Preferred Securities Credit Spreads [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.45%	0.45%
Minimum [Member] | Trust Preferred Securities Liquidity Risk Adjustments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.20%	0.20%
Minimum [Member] | Trust Preferred Securities Default Rates [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.60%	0.60%
Minimum [Member] | Impaired Loans Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	2.84%	0.64%
Minimum [Member] | Impaired Loans Appraisal Value and Liquidation Expense [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'	'
Minimum [Member] | Servicing Assets Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	11.25%	11.25%
Maximum [Member] | Servicing Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'16 years 10 months 24 days	'18 years 9 months 18 days
Maximum [Member] | Trust Preferred Securities Credit Spreads [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.70%	0.80%
Maximum [Member] | Trust Preferred Securities Liquidity Risk Adjustments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.55%	0.65%
Maximum [Member] | Trust Preferred Securities Default Rates [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	1.00%	1.00%
Maximum [Member] | Impaired Loans Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	48.93%	48.93%
Maximum [Member] | Impaired Loans Appraisal Value and Liquidation Expense [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'	'
Maximum [Member] | Servicing Assets Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	12.25%	12.25%
Weighted Average [Member] | Servicing Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'12 years 6 months	'13 years 6 months
Weighted Average [Member] | Trust Preferred Securities Credit Spreads [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.58%	0.66%
Weighted Average [Member] | Trust Preferred Securities Liquidity Risk Adjustments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.36%	0.38%
Weighted Average [Member] | Impaired Loans Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	9.95%	9.98%
Weighted Average [Member] | Impaired Loans Appraisal Value and Liquidation Expense [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	'	'
Weighted Average [Member] | Servicing Assets Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	11.36%	11.51%

Financial_Instruments_Carrying

Financial Instruments - Carrying Amount and Fair Value of the Company's Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial assets:	'	'
Securities	$1,063,016	$1,110,776
Securities receivable	654	1,277
Loans receivable	695,636	672,086
Accrued interest receivable	7,345	8,068
FHLB stock	15,436	15,077
Bank owned life insurance	30,595	30,025
Financial liabilities:	'	'
Deposits	1,222,767	1,178,057
Junior subordinated notes	36,083	46,393
Advance payment by borrowers for taxes and insurance	2,659	2,619
Carrying Amount [Member]	'	'
Financial assets:	'	'
Cash and cash equivalents	16,214	15,064
Securities	1,063,016	1,110,776
Securities receivable	654	1,277
Loans receivable	695,636	672,086
Accrued interest receivable	7,345	8,068
FHLB stock	15,436	15,077
Bank owned life insurance	30,595	30,025
Interest rate cap contracts	717	90
Financial liabilities:	'	'
Deposits	1,222,767	1,178,057
Borrowed funds	441,144	484,556
Junior subordinated notes	36,083	46,393
Advance payment by borrowers for taxes and insurance	2,659	2,619
Accrued interest payable	1,046	1,344
Interest rate swap contracts	3,870	5,743
Fair Value [Member]	'	'
Financial assets:	'	'
Cash and cash equivalents	16,214	15,064
Securities	1,063,016	1,110,776
Securities receivable	654	1,277
Loans receivable	707,919	702,206
Accrued interest receivable	7,345	8,068
FHLB stock	15,436	15,077
Bank owned life insurance	30,595	30,025
Interest rate cap contracts	717	90
Financial liabilities:	'	'
Deposits	1,229,435	1,187,728
Borrowed funds	455,378	509,883
Junior subordinated notes	25,258	25,001
Advance payment by borrowers for taxes and insurance	2,659	2,619
Accrued interest payable	1,046	1,344
Interest rate swap contracts	3,870	5,743
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member]	'	'
Financial assets:	'	'
Cash and cash equivalents	16,214	15,064
Securities	1,921	1,818
Securities receivable	654	1,277
Accrued interest receivable	7,345	8,068
FHLB stock	15,436	15,077
Bank owned life insurance	30,595	30,025
Financial liabilities:	'	'
Deposits	577,040	546,298
Advance payment by borrowers for taxes and insurance	2,659	2,619
Accrued interest payable	1,046	1,344
Significant Other Observable Inputs (Level II) [Member]	'	'
Financial assets:	'	'
Securities	1,023,886	1,072,779
Interest rate cap contracts	717	90
Financial liabilities:	'	'
Borrowed funds	151,942	260,333
Junior subordinated notes	25,258	25,001
Interest rate swap contracts	3,870	5,743
Significant Unobservable Inputs (Level III) [Member]	'	'
Financial assets:	'	'
Securities	37,209	36,179
Loans receivable	707,919	702,206
Financial liabilities:	'	'
Deposits	652,395	641,430
Borrowed funds	$303,436	$249,550

Regulatory_Matters_and_Insuran2

Regulatory Matters and Insurance of Accounts - Additional Information (Detail)	Dec. 31, 2013	Dec. 31, 2012
Regulated Operations [Abstract]	'	'
The minimum required regulatory capital percentages to be well capitalized under prompt corrective action provisions, Tier 1 Leverage Capital	5.00%	5.00%
The minimum required regulatory capital percentages to be well capitalized under prompt corrective action provisions, Tier 1 Risk Based Capital	6.00%	6.00%
The minimum required regulatory capital percentages to be well capitalized under prompt corrective action provisions, Total Capital	10.00%	10.00%

Regulatory_Matters_and_Insuran3

Regulatory Matters and Insurance of Accounts - Schedule of Information Concerning Regulatory Capital of the Bank (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Regulated Operations [Abstract]	'	'
Total Capital, Actual	$171,660	$164,082
Tier 1 Leverage Capital, Actual	164,710	157,313
Tier 1 Risk Based Capital, Actual	164,710	157,313
Total Capital, For Capital Adequacy Purposes	86,170	86,309
Tier 1 Leverage Capital, For Capital Adequacy Purposes	72,305	72,355
Tier 1 Risk Based Capital, For Capital Adequacy Purposes	43,085	43,154
Total Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions	107,713	107,886
Tier 1 Leverage Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions	90,381	90,444
Tier 1 Risk Based Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions	$64,628	$64,732
Total Capital (to Risk Weighted Assets), Actual	15.94%	15.21%
Tier 1 Leverage Capital (to Adjusted Tangible Assets), Actual	9.11%	8.70%
Tier 1 Risk Based Capital (to Risk Weighted Assets), Actual	15.29%	14.58%
Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes	8.00%	8.00%
Tier 1 Leverage Capital (to Adjusted Tangible Assets), For Capital Adequacy Purposes	4.00%	4.00%
Tier 1 Risk Based Capital (to Risk Weighted Assets), For Capital Adequacy Purposes	4.00%	4.00%
Total Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions	10.00%	10.00%
Tier 1 Leverage Capital (to Adjusted Tangible Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions	5.00%	5.00%
Tier 1 Risk Based Capital (to Risk Weighted Assets), To Be Well Capitalized Under Prompt Corrective Action Provisions	6.00%	6.00%

Quarterly_Financial_Data_unaud2

Quarterly Financial Data (unaudited) - Schedule of Quarterly Financial Data (unaudited) (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'		'		'
Interest income	$16,243,000	$16,078,000	$16,008,000	$16,427,000	$17,109,000	$17,943,000	$18,590,000	$18,870,000	$64,754,000		$72,512,000		$79,227,000
Interest expense	5,062,000	5,246,000	5,493,000	6,176,000	6,778,000	7,168,000	7,581,000	7,873,000	21,977,000		29,400,000		35,140,000
Net interest income	11,181,000	10,832,000	10,515,000	10,251,000	10,331,000	10,775,000	11,009,000	10,997,000	42,777,000		43,112,000		44,087,000
Provision for loan losses	200,000	75,000	75,000	150,000	250,000	350,000	300,000	200,000	500,000		1,100,000		1,130,000
Net interest income after provision for loan losses	10,981,000	10,757,000	10,440,000	10,101,000	10,081,000	10,425,000	10,709,000	10,797,000	42,277,000		42,012,000		42,957,000
Net realized gain on securities available for sale	374,000	58,000	198,000	268,000	282,000	197,000	'	267,000	898,000		746,000		937,000
Other noninterest income	971,000	1,559,000	1,698,000	1,645,000	2,144,000	1,440,000	1,538,000	1,456,000	949,000		811,000		706,000
Noninterest expense	7,689,000	7,500,000	7,454,000	7,213,000	7,817,000	7,248,000	7,491,000	7,722,000	29,854,000		30,279,000		28,062,000
Income before provision for income taxes	4,637,000	4,874,000	4,882,000	4,801,000	4,690,000	4,814,000	4,756,000	4,798,000	19,195,000		19,058,000		19,201,000
Provision for income taxes	810,000	763,000	956,000	811,000	799,000	793,000	799,000	845,000	3,341,000		3,236,000		3,380,000
Net Income before noncontrolling interest	3,827,000	4,111,000	3,926,000	3,990,000	3,891,000	4,021,000	3,957,000	3,953,000	15,854,000		15,822,000		15,821,000
Less: net income attributable to the noncontrolling interest	44,000	140,000	50,000	276,000	388,000	87,000	276,000	168,000	510,000		919,000		911,000
Net income attributable to ESB Financial Corporation	$3,783,000	$3,971,000	$3,876,000	$3,714,000	$3,503,000	$3,934,000	$3,681,000	$3,785,000	$15,344,000		$14,903,000		$14,910,000
Net income per share	'	'	'	'	'	'	'	'	'		'		'
Basic	$0.22	$0.23	$0.22	$0.21	$0.21	$0.23	$0.22	$0.22	$0.88	[1]	$0.87	[1]	$0.86	[1]
Diluted	$0.21	$0.23	$0.22	$0.21	$0.21	$0.23	$0.21	$0.22	$0.87	[1]	$0.86	[1]	$0.85	[1]
[1]	Outstanding shares and per share data have been adjusted for years 2012 and 2011 to reflect a six-for five stock split of the common stock paid on May 17, 2013.

ESB_Financial_Corporation_Cond2

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only) - Schedule of Condensed Statements of Financial Condition (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Assets:	'	'	'	'
Interest-earning deposits	$8,942	$9,400	'	'
Securities available for sale	1,063,016	1,110,776	'	'
Total assets	1,906,917	1,927,614	'	'
Liabilities and stockholders' equity:	'	'	'	'
Stockholders' equity	185,843	194,800	179,075	167,353
Total liabilities and stockholders' equity	1,906,917	1,927,614	'	'
Parent [Member]	'	'	'	'
Assets:	'	'	'	'
Interest-earning deposits	5,741	1,091	'	'
Securities available for sale	34,273	34,889	'	'
Equity in net assets of subsidiaries	213,613	227,695	'	'
Other assets	6,004	5,969	'	'
Total assets	259,631	269,644	'	'
Liabilities and stockholders' equity:	'	'	'	'
Subordinated debt, net	36,083	46,393	'	'
Accrued expenses and other liabilities	36,546	27,553	'	'
Stockholders' equity	187,002	195,698	'	'
Total liabilities and stockholders' equity	$259,631	$269,644	'	'

ESB_Financial_Corporation_Cond3

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only) - Schedule of Condensed Statements of Operations (Detail) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income:	'	'	'	'	'	'	'	'	'	'	'
Net gain on sale of securities available for sale	$374,000	$58,000	$198,000	$268,000	$282,000	$197,000	'	$267,000	$898,000	$746,000	$937,000
Other than temporary impairment losses on securities available for sale	'	'	'	'	'	'	'	'	-310,000	-406,000	-995,000
Expense:	'	'	'	'	'	'	'	'	'	'	'
Compensation and employee benefits	'	'	'	'	'	'	'	'	17,983,000	17,514,000	16,327,000
Benefit from income taxes	810,000	763,000	956,000	811,000	799,000	793,000	799,000	845,000	3,341,000	3,236,000	3,380,000
Net income attributable to ESB Financial Corporation	3,783,000	3,971,000	3,876,000	3,714,000	3,503,000	3,934,000	3,681,000	3,785,000	15,344,000	14,903,000	14,910,000
Parent [Member]	'	'	'	'	'	'	'	'	'	'	'
Income:	'	'	'	'	'	'	'	'	'	'	'
Equity in undistributed earnings of subsidiaries	'	'	'	'	'	'	'	'	7,007,000	6,356,000	1,664,000
Dividends from subsidiaries	'	'	'	'	'	'	'	'	10,000,000	10,000,000	15,000,000
Management fee income, from subsidiaries	'	'	'	'	'	'	'	'	48,000	48,000	36,000
Net gain on sale of securities available for sale	'	'	'	'	'	'	'	'	256,000	629,000	141,000
Other than temporary impairment losses on securities available for sale	'	'	'	'	'	'	'	'	'	-26,000	-317,000
Interest and other income	'	'	'	'	'	'	'	'	928,000	1,126,000	1,365,000
Total income	'	'	'	'	'	'	'	'	18,239,000	18,133,000	17,889,000
Expense:	'	'	'	'	'	'	'	'	'	'	'
Interest expense, to subsidiary	'	'	'	'	'	'	'	'	2,753,000	2,957,000	3,257,000
Compensation and employee benefits	'	'	'	'	'	'	'	'	807,000	632,000	432,000
Other	'	'	'	'	'	'	'	'	656,000	657,000	445,000
Total expense	'	'	'	'	'	'	'	'	4,216,000	4,246,000	4,134,000
Income before benefit from income taxes	'	'	'	'	'	'	'	'	14,023,000	13,887,000	13,755,000
Benefit from income taxes	'	'	'	'	'	'	'	'	-1,321,000	-1,016,000	-1,155,000
Net income attributable to ESB Financial Corporation	'	'	'	'	'	'	'	'	$15,344,000	$14,903,000	$14,910,000

ESB_Financial_Corporation_Cond4

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only) - Schedule of Condensed Statements of Comprehensive Income (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Condensed Consolidating Statement of Income and Comprehensive Income [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net Income before noncontrolling interest	$3,827	$4,111	$3,926	$3,990	$3,891	$4,021	$3,957	$3,953	$15,854	$15,822	$15,821
Net change in unrealized gains (losses):	'	'	'	'	'	'	'	'	'	'	'
Gains (losses) arising during the period	'	'	'	'	'	'	'	'	-32,726	7,832	12,728
Income tax effect	'	'	'	'	'	'	'	'	11,454	-2,741	-4,455
Gains (losses) arising during the period, net of tax	'	'	'	'	'	'	'	'	-21,272	5,091	8,273
Income tax effect	'	'	'	'	'	'	'	'	314	261	328
Gains recognized in earnings, net of tax	'	'	'	'	'	'	'	'	-584	-485	-609
Unrealized holding gains (losses) on securities available for sale not other-than-temporarily-impaired, net of tax	'	'	'	'	'	'	'	'	-21,856	4,606	7,664
Fair value adjustment on derivatives	'	'	'	'	'	'	'	'	1,873	-211	-2,631
Income tax effect	'	'	'	'	'	'	'	'	655	-74	-921
Fair value adjustment on derivatives, net of tax	'	'	'	'	'	'	'	'	1,218	-137	-1,710
Other comprehensive (loss) income	'	'	'	'	'	'	'	'	-20,488	4,199	5,570
Net comprehensive income (loss) before noncontrolling interest	'	'	'	'	'	'	'	'	-4,634	20,021	21,391
Less: net income attributable to the noncontrolling interest	44	140	50	276	388	87	276	168	510	919	911
Net comprehensive income (loss) attributable to ESB Financial Corporation	'	'	'	'	'	'	'	'	-5,144	19,102	20,480
Parent [Member]	'	'	'	'	'	'	'	'	'	'	'
Schedule of Condensed Consolidating Statement of Income and Comprehensive Income [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Net Income before noncontrolling interest	'	'	'	'	'	'	'	'	15,854	15,822	15,821
Net change in unrealized gains (losses):	'	'	'	'	'	'	'	'	'	'	'
Gains (losses) arising during the period	'	'	'	'	'	'	'	'	-889	741	368
Income tax effect	'	'	'	'	'	'	'	'	311	-259	-129
Gains (losses) arising during the period, net of tax	'	'	'	'	'	'	'	'	-578	482	239
Gains recognized in earnings	'	'	'	'	'	'	'	'	-256	-629	-141
Income tax effect	'	'	'	'	'	'	'	'	90	221	49
Gains recognized in earnings, net of tax	'	'	'	'	'	'	'	'	-166	-408	-92
Unrealized holding gains (losses) on securities available for sale not other-than-temporarily-impaired, net of tax	'	'	'	'	'	'	'	'	-744	74	147
Fair value adjustment on derivatives	'	'	'	'	'	'	'	'	1,873	-211	-2,631
Income tax effect	'	'	'	'	'	'	'	'	-655	74	921
Fair value adjustment on derivatives, net of tax	'	'	'	'	'	'	'	'	1,218	-137	-1,710
Other comprehensive income (loss) of bank subsidiary	'	'	'	'	'	'	'	'	-20,962	4,262	7,133
Other comprehensive (loss) income	'	'	'	'	'	'	'	'	-20,488	4,199	5,570
Net comprehensive income (loss) before noncontrolling interest	'	'	'	'	'	'	'	'	-4,634	20,021	21,391
Less: net income attributable to the noncontrolling interest	'	'	'	'	'	'	'	'	510	919	911
Net comprehensive income (loss) attributable to ESB Financial Corporation	'	'	'	'	'	'	'	'	($5,144)	$19,102	$20,480

ESB_Financial_Corporation_Cond5

ESB Financial Corporation - Condensed Financial Statements (Parent Company Only) - Schedule of Condensed Statements of Cash Flows (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities:	'	'	'
Net income	$15,344,000	$14,903,000	$14,910,000
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Net realized gain on securities available for sale	-898,000	-746,000	-937,000
Other than temporary impairment losses on securities available for sale	310,000	406,000	995,000
Other, net	219,000	641,000	954,000
Net cash provided by operating activities	26,087,000	26,812,000	27,876,000
Investing activities:	'	'	'
Purchases of securities	-207,113,000	-244,115,000	-302,507,000
Net cash (used in) provided by investing activities	-10,714,000	11,813,000	-48,630,000
Financing activities:	'	'	'
Redemption of junior subordinated notes	-10,310,000	'	'
Proceeds from long term borrowings	176,198,000	9,067,000	13,786,000
Repayments of long term borrowings	-203,705,000	-112,094,000	-119,616,000
Proceeds received from exercise of stock options	1,603,000	794,000	832,000
Dividends paid	-4,999,000	-7,321,000	-5,409,000
Payments to acquire treasury stock	-619,000	-541,000	-4,754,000
Stock purchased by ESOP	134,257	181,122	205,562
Net cash (used in) provided by financing activities	-14,223,000	-62,409,000	23,895,000
(Decrease) increase in cash equivalents	1,150,000	-23,784,000	3,141,000
Cash and cash equivalents at beginning of period	15,064,000	38,848,000	35,707,000
Cash and cash equivalents at end of period	16,214,000	15,064,000	38,848,000
Parent [Member]	'	'	'
Operating activities:	'	'	'
Net income	15,344,000	14,903,000	14,910,000
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Equity in undistributed earnings of subsidiaries	-7,007,000	-6,356,000	-1,664,000
Net realized gain on securities available for sale	-256,000	-629,000	-141,000
Other than temporary impairment losses on securities available for sale	'	26,000	317,000
Compensation expense on ESOP and MRP	1,823,000	1,602,000	1,445,000
Other, net	928,000	1,148,000	-2,190,000
Net cash provided by operating activities	10,832,000	10,694,000	12,677,000
Investing activities:	'	'	'
Purchases of securities	-9,533,000	-14,411,000	-6,733,000
Principal repayments of securities	8,652,000	9,405,000	7,698,000
Proceeds from the sale of securities available for sale	449,000	1,342,000	204,000
Net cash (used in) provided by investing activities	-432,000	-3,664,000	1,169,000
Financing activities:	'	'	'
Redemption of junior subordinated notes	-10,310,000	'	'
Proceeds from long term borrowings	10,000,000	'	'
Repayments of long term borrowings	-1,000,000	-5,200,000	'
Proceeds received from exercise of stock options	1,603,000	794,000	832,000
Dividends paid	-4,999,000	-7,321,000	-5,409,000
Payments to acquire treasury stock	-619,000	-541,000	-4,754,000
Stock purchased by ESOP	-425,000	-329,000	-504,000
Net cash (used in) provided by financing activities	-5,750,000	-12,597,000	-9,835,000
(Decrease) increase in cash equivalents	4,650,000	-5,567,000	4,011,000
Cash and cash equivalents at beginning of period	1,091,000	6,658,000	2,647,000
Cash and cash equivalents at end of period	$5,741,000	$1,091,000	$6,658,000