ESB Financial (ESBF) 10-Q 8 Aug 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 31, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'ESBF	'
Entity Registrant Name	'ESB FINANCIAL CORP	'
Entity Central Index Key	'0000872835	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	17,762,355

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Cash on hand and in banks	$5,569	$7,272
Interest-earning deposits	9,299	8,942
Cash and cash equivalents	14,868	16,214
Securities available for sale; cost of $1,065,482 and $1,051,311	1,093,354	1,063,016
Loans receivable, net of allowance for loan losses of $6,816 and $6,805	709,373	695,636
Accrued interest receivable	7,342	7,345
Federal Home Loan Bank (FHLB) stock	14,115	15,436
Premises and equipment, net	13,009	13,308
Real estate acquired through foreclosure, net	2,141	1,977
Real estate held for investment	5,804	7,813
Goodwill	41,599	41,599
Intangible assets	63	127
Bank owned life insurance	30,235	30,595
Securities receivable	712	654
Prepaid expenses and other assets	7,835	13,197
Total assets	1,940,450	1,906,917
Liabilities:	'	'
Deposits	1,300,163	1,222,767
FHLB advances	259,724	290,921
Repurchase agreements	108,000	138,000
Other borrowings	10,722	12,223
Junior subordinated notes	36,083	36,083
Advance payments by borrowers for taxes and insurance	3,515	2,659
Accounts payable for land development	1,062	1,383
Accrued expenses and other liabilities	17,847	17,038
Total liabilities	1,737,116	1,721,074
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 shares issued; 17,762,585 and 17,729,105 shares outstanding	192	192
Additional paid-in capital	104,392	104,251
Treasury stock, at cost; 1,451,641 and 1,485,121 shares	-17,180	-17,540
Unearned Employee Stock Ownership Plan (ESOP) shares	-1,632	-2,121
Retained Earnings	103,039	97,605
Accumulated other comprehensive income	15,573	4,615
Total ESB Financial Corporation's stockholders' equity	204,384	187,002
Noncontrolling interest	-1,050	-1,159
Total stockholders' equity	203,334	185,843
Total liabilities and stockholders' equity	$1,940,450	$1,906,917

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Securities available for sale; cost	$1,065,482	$1,051,311
Loans receivable, allowance for loan losses	$6,816	$6,805
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
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	19,214,226
Common stock, shares outstanding	17,762,585	17,729,105
Treasury stock, shares	1,451,641	1,485,121

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Interest and dividend income:	'	'	'	'
Loans receivable, including fees	$7,889	$7,972	$15,713	$16,045
Taxable securities available for sale	6,575	6,379	13,132	13,067
Tax free securities available for sale	1,625	1,647	3,278	3,304
FHLB Stock	203	10	336	18
Deposits with banks and federal funds sold	30	'	35	1
Total interest and dividend income	16,322	16,008	32,494	32,435
Interest expense:	'	'	'	'
Deposits	1,710	1,881	3,408	3,843
Borrowed funds	2,294	3,094	4,812	6,747
Junior subordinated notes and guaranteed preferred beneficial interest in subordinated debt	520	518	1,035	1,079
Total interest expense	4,524	5,493	9,255	11,669
Net interest income	11,798	10,515	23,239	20,766
Provision for loan losses	150	75	60	225
Net interest income after provision for loan losses	11,648	10,440	23,179	20,541
Noninterest income:	'	'	'	'
Fees and service charges	905	813	1,818	1,538
Increase of cash surrender value of bank owned life insurance	146	145	276	300
Net realized gain on securities available for sale	'	198	288	467
Total other-than-temporary impairment losses	'	'	-193	'
Portion of loss recognized in other comprehensive income before taxes	'	'	'	'
Net impairment losses on investment securities	'	'	-193	'
Net realized gain (loss) on derivatives	-292	202	-440	217
Income from real estate held for investment	977	384	1,145	961
Other	150	154	271	326
Total noninterest income	1,886	1,896	3,165	3,809
Noninterest expense:	'	'	'	'
Compensation and employee benefits	4,698	4,451	9,342	8,881
Premises and equipment	664	667	1,361	1,390
Federal deposit insurance premiums	296	318	562	626
Data processing	565	597	1,142	1,176
Amortization of intangible assets	25	41	60	89
Advertising	183	189	342	323
Other	1,243	1,191	2,092	2,182
Total noninterest expense	7,674	7,454	14,901	14,667
Income before income taxes	5,860	4,882	11,443	9,683
Provision for income taxes	1,082	956	2,262	1,767
Net income before noncontrolling interest	4,778	3,926	9,181	7,916
Less: net income attributable to the noncontrolling interest	78	50	141	326
Net income attributable to ESB Financial Corporation	$4,700	$3,876	$9,040	$7,590
Net income per share	'	'	'	'
Basic	$0.27	$0.22	$0.51	$0.44
Diluted	$0.26	$0.22	$0.51	$0.43
Cash dividends declared per share	$0.10	$0.10	$0.20	$0.18
Weighted average shares outstanding	17,578,543	17,353,359	17,558,380	17,332,898
Weighted average shares and share equivalents outstanding	17,773,656	17,521,793	17,766,951	17,493,942

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Income And Comprehensive Income [Abstract]	'	'	'	'
Net income before noncontrolling interest	$4,778	$3,926	$9,181	$7,916
Securities available for sale other-than-temporarily impaired:	'	'	'	'
Reclassification adjustment for losses recognized in earnings	'	'	193	'
Income tax effect	'	'	-66	'
Unrealized holding losses on other-than-temporarily impaired securities available for sale, net of tax	'	'	127	'
Securities available for sale not other-than-temporarily impaired:	'	'	'	'
Gains (losses) arising during the period	8,599	-21,515	16,439	-24,484
Income tax effect	-2,924	7,316	-5,589	8,324
Gains (losses) arising during the period, net of tax	5,675	-14,199	10,850	-16,160
Reclassification adjustment for gains recognized in earnings	'	-198	-288	-467
Income tax effect	'	67	98	159
Gains recognized in earnings, net of tax	'	-131	-190	-308
Unrealized holding (loss) gain on securities, net	5,675	-14,330	10,787	-16,468
Pension and postretirement amortization	33	36	67	73
Income tax effect	-11	-12	-23	-25
Defined benefit pension plan items, Net of tax	22	24	44	48
Fair value adjustment on derivatives	44	1,100	193	1,369
Income tax effect	-15	-374	-66	-465
Fair Value adjustment on derivatives, net of tax	29	726	127	904
Other comprehensive (loss) income	5,726	-13,580	10,958	-15,516
Net comprehensive income (loss) before noncontrolling interest	10,504	-9,654	20,139	-7,600
Less: net income attributable to the noncontrolling interest	78	50	141	326
Net comprehensive income (loss) attributable to ESB Financial Corporation	$10,426	($9,704)	$19,998	($7,926)

Consolidated_Statement_of_Chan

Consolidated Statement 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, Net of Tax [Member]	Noncontrolling Interest [Member]
In Thousands
Beginning balance at Dec. 31, 2013	$185,843	$192	$104,251	($17,540)	($2,121)	$97,605	$4,615	($1,159)
Net income	9,181	'	'	'	'	9,040	'	141
Other comprehensive income	10,958	'	'	'	'	'	10,958	'
Cash dividends	-3,510	'	'	'	'	-3,510	'	'
Purchase of treasury stock, at cost	-123	'	'	-123	'	'	'	'
Reissuance of treasury stock for stock option exercises	387	'	'	483	'	-96	'	'
Compensation expense ESOP and MRP	848	'	359	'	489	'	'	'
Additional ESOP shares purchased	-247	'	-247	'	'	'	'	'
Tax effect of compensatory stock options	29	'	29	'	'	'	'	'
Capital disbursement for noncontrolling interest	-32	'	'	'	'	'	'	-32
Ending balance at Jun. 30, 2014	$203,334	$192	$104,392	($17,180)	($1,632)	$103,039	$15,573	($1,050)

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Stockholders' Equity (Parenthetical) (USD $)	6 Months Ended
	Jun. 30, 2014
Cash dividends per share	$0.20
Purchase of treasury stock, shares	9,697
Reissuance of treasury stock for stock option exercises, shares	43,177
Treasury Stock [Member]	'
Purchase of treasury stock, shares	9,697
Reissuance of treasury stock for stock option exercises, shares	43,177
Retained Earnings [Member]	'
Cash dividends per share	$0.02
Reissuance of treasury stock for stock option exercises, shares	43,177

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Operating activities:	'	'
Net income	$9,181	$7,916
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization for premises and equipment	442	488
Provision for loan losses	60	225
Amortization of premiums and accretion of discounts	1,250	2,099
Net gain on sale of securities available for sale	-288	-467
Impairment losses on investment securities	193	'
Net realized loss (gain) on derivatives	440	-217
Amortization of intangible assets	60	89
Compensation expense on ESOP and MRP	848	751
Increases in Bank owned life insurance	-276	-300
Decrease in accrued interest receivable	3	418
Decrease in prepaid FDIC assessment	'	2,031
(Increase) decrease in prepaid expenses and other assets	-592	1,423
Increase in accrued expenses and other liabilities	1,061	4,719
Gain on sale of real estate acquired through foreclosure	-12	-57
Other	914	-924
Net cash provided by operating activities	13,284	18,194
Investing activities:	'	'
Loan originations	-73,054	-94,632
Purchases of:	'	'
Securities available for sale	-96,039	-105,656
FHLB Stock	-1,430	-3,614
Premises and equipment	-143	-94
Principal repayments of:	'	'
Loans receivable	60,436	86,948
Securities available for sale	80,473	125,633
Proceeds from the sale of:	'	'
Securities available for sale	563	1,795
Real estate acquired through foreclosure	45	579
Premises and Equipment	'	105
Proceeds from bank owned life insurance	636	'
Redemption of FHLB stock	2,751	1,966
Funding of real estate held for investment	-12,952	-3,846
Proceeds from real estate held for investment	12,949	2,607
Net cash (used in) provided by investing activities	-25,765	11,791
Financing activities:	'	'
Net increase in deposits	77,396	32,707
Proceeds from long-term borrowings	33,118	94,030
Repayments of long-term borrowings	-75,714	-138,227
Net decrease in short-term borrowings	-20,102	-2,502
Capital disbursement to noncontrolling interest	-32	-646
Redemption of junior subordinated notes	'	-10,310
Proceeds received from exercise of stock options	387	903
Dividends paid	-3,548	-1,468
Payments to acquire treasury stock	-123	-595
Stock purchased by ESOP	-247	-199
Net cash (used in) provided by financing activities	11,135	-26,307
Net (decrease) increase in cash equivalents	-1,346	3,678
Cash equivalents at beginning of period	16,214	15,064
Cash equivalents at end of period	14,868	18,742
Supplemental information:	'	'
Interest paid	8,253	10,412
Income taxes paid	2,528	1,849
Supplemental schedule of non-cash investing and financing activities:	'	'
Transfers from loans receivable to real estate acquired through foreclosure	121	53
Transfers from loan originations to proceeds on real estate held for investment	1,691	3,160
Dividends declared but not paid	1,776	1,764
Unfunded security commitments	'	$2,160

Summary_of_Significant_Account

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2014

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, which are ESB Bank (ESB or the Bank), THF, Inc. (THF), ESB Financial Services, Inc. (EFS) and AMSCO, Inc. (AMSCO). 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. AMSCO is currently involved in nine real estate joint ventures, all of which are owned 51% or greater by AMSCO. The Bank has provided all development and construction financing. These joint ventures have been included in the consolidated financial statements and reflected within the consolidated statements of financial condition as real estate held for investment and related operating income and expenses are reflected within other non-interest 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 accompanying unaudited consolidated financial statements for the interim periods include all adjustments, consisting only of normal recurring accruals, which are necessary, in the opinion of management, to fairly reflect the Company’s financial position and results of operations. Additionally, these consolidated financial statements for the interim periods have been prepared in accordance with instructions for the Securities and Exchange Commission’s Form 10-Q and therefore do not include all information or footnotes necessary for a complete presentation of financial condition, results of operations and cash flows in conformity with U.S. generally accepted accounting principles (GAAP). For further information, refer to the audited consolidated financial statements and footnotes thereto for the year ended December 31, 2013, as contained in the Company’s 2013 Annual Report to Stockholders.

The results of operations for the three and six month periods ended June 30, 2014 are not necessarily indicative of the results that may be expected for the entire year. Certain amounts previously reported have been reclassified to conform to the current periods’ reporting format, such reclassifications did not have an effect on stockholders’ equity or net income.

The accounting principles followed by the Company and the methods of applying these principles conform with GAAP and with general practice within the banking industry. In preparing the consolidated financial statements management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the Statement of Financial Condition date and revenues and expenses for the period. Actual results could differ significantly from those estimates.

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. At June 30, 2014, the Company was doing business through 23 full service banking branches, one loan production office and through 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, non-interest 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 banking industry. Consistent with internal reporting, the Company’s operations are reported in one operating segment, which is community banking.

Stock Based Compensation

During the three and six months ended June 30, 2014, the Company recorded approximately $235,000 and $463,000, respectively, in compensation expense and a tax benefit of $33,000 and $55,000, respectively, related to our share-based compensation awards that are expected to vest in 2014.

During the three and six months ended June 30, 2013, the Company recorded approximately $185,000 and $357,000, respectively, in compensation expense and a tax benefit of $19,000 and $38,000, respectively, related to our share-based compensation awards that were expected to vest in 2013. As of June 30, 2014, there was approximately $992,000 of unrecognized compensation cost related to unvested share-based compensation awards granted. That cost is expected to be recognized over the next four years.

As required by GAAP, cash flows from the tax benefits resulting from tax deductions in excess of the compensation cost recognized for stock-based awards (excess tax benefits) are classified as financing cash flows.

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 other comprehensive income (OCI) 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 June 30, 2014, there were twenty-one interest rate cap contracts outstanding with notional amounts totaling $220.0 million. These derivative instruments are not hedged and therefore adjustments to fair value are recorded in current earnings.

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 June 30, 2014, 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 OCI to earnings over the next twelve months.

The fixed rate interest rate swap contract outstanding at June 30, 2014 is being utilized to hedge $35.0 million in floating rate junior subordinated notes. Below is a summary of the interest rate swap contract and the terms at June 30, 2014:

Notional

Effective

Pay

Receive

Maturity

Unrealized

(Dollars in thousands)

Amount

Date

Rate

Rate (*)

Date

Gain

Loss

Cash Flow Hedge

$

20,000

2/10/11

4.18

%

0.24

%

2/10/18

$

—

$

2,151

Cash Flow Hedge

15,000

2/10/11

3.91

%

0.24

%

2/10/18

—

1,467

$

35,000

$

—

$

3,618

*

Variable receive rate based upon contract rates in effect at June 30, 2014.

Recent Accounting and Regulatory Pronouncements

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 were 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 became effective for the Company January 1, 2014 and did not 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 did not 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.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (a new revenue recognition standard). The Update’s core principle is that a company will recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is evaluating the effect of adopting this new accounting Update.

In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures. The amendments in this Update change the accounting for repurchase-to-maturity transactions to secured borrowing accounting. For repurchase financing arrangements, the amendments require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The amendments also require enhanced disclosures. The accounting changes in this Update are effective for the first interim or annual period beginning after December 15, 2014. An entity is required to present changes in accounting for transactions outstanding on the effective date as a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. Earlier application is prohibited. The disclosure for certain transactions accounted for as a sale is required to be presented for interim and annual periods beginning after December 15, 2014, and the disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. The disclosures are not required to be presented for comparative periods before the effective date. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

In June 2014, the FASB issued ASU 2014-12, Compensation-Stock Compensation (Topic 718): Accounting for Share-Based Payments when the Terms of an Award Provide that a Performance Target Could Be Achieved After the Requisite Service Period. The amendments require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. The amendments in this Update are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Earlier adoption is permitted. Entities may apply the amendments in this Update either (a) prospectively to all awards granted or modified after the effective date or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. If retrospective transition is adopted, the cumulative effect of applying this Update as of the beginning of the earliest annual period presented in the financial statements should be recognized as an adjustment to the opening retained earnings balance at that date. Additionally, if retrospective transition is adopted, an entity may use hindsight in measuring and recognizing the compensation cost. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

Securities_Available_for_Sale

Securities Available for Sale	6 Months Ended
	Jun. 30, 2014
Investments Debt And Equity Securities [Abstract]	'
Securities Available for Sale	'
	2	Securities Available for Sale
	The Company’s securities available for sale portfolio is summarized as follows:
	(Dollar amounts in thousands)		Amortized			Unrealized		Unrealized			Fair
			cost			gains		losses			value
	June 30, 2014:
	Trust preferred securities		$	45,399		$	331	$	(6,876	)	$	38,854
	Municipal securities			172,249			8,746		(683	)		180,312
	Equity securities - financial institutions			677			776		—			1,453
	Corporate bonds			181,854			4,764		—			186,618
	Mortgage-backed securities
	U.S. sponsored entities			663,756			23,192		(2,403	)		684,545
	Private label			1,547			25		—			1,572
	Subtotal mortgage-backed securities			665,303			23,217		(2,403	)		686,117
	Total securities		$	1,065,482		$	37,834	$	(9,962	)	$	1,093,354
	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 - financial institutions			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
	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 June 30, 2014:
	As of June 30, 2014
	(Dollar amounts in thousands)		Less than 12 Months								12 Months or more						Total
			# of			Fair Value		Unrealized			# of		Fair Value		Unrealized		# of		Fair Value		Unrealized
			Securities					losses			Securities				losses		Securities				losses
	Trust preferred securities			—		$	—	$	—			8	$	37,055	$	6,876		8	$	37,055	$	6,876
	Municipal securities			4			3,742		27			18		15,850		656		22		19,592		683
	Mortgage-backed securities
	U.S. sponsored entities			1			3,152		16			41		138,506		2,387		42		141,658		2,403
	Total			5		$	6,894	$	43			67	$	191,411	$	9,919		72	$	198,305	$	9,962
	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:
	As of December 31, 2013
	(Dollar amounts in thousands)		Less than 12 Months								12 Months or more						Total
			# of			Fair Value		Unrealized			# of		Fair Value		Unrealized		# of		Fair Value		Unrealized
			Securities					losses			Securities				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
	The Company primarily invests in mortgage-backed securities, variable and fixed rate corporate bonds, municipal bonds, government bonds and to a lesser extent equity securities. The policy of the Company is to recognize other than temporary impairment (OTTI) on equity securities where the fair value has been significantly below cost for three consecutive quarters. Declines in the fair value of the debt securities that can be attributed to specific adverse conditions affecting the credit quality of the investment would be recorded as OTTI 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 June 30, 2014, 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 are recognized in earnings while noncredit-related OTTI on securities not expected to be sold is recognized in accumulated other comprehensive income. The $193,000 credit-related OTTI recognized during 2014 consisted of a pooled trust preferred security with no remaining book value. There was no noncredit-related OTTI on this security recognized in OCI during the first six months of 2014.
	The Company holds one pooled trust preferred security that has previously been determined to be other than temporarily impaired by approximately $2.3 million, due solely to credit related factors. As stated at December 31, 2013, the Company’s intention was to sell this investment. The security was written down to its fair value at that time. During the first quarter of 2014, the Company attempted to liquidate this security but was unsuccessful due to the extreme illiquid market for this type of investment. The Company decided that due to the extreme illiquid market, this security has no value and therefore recorded an additional OTTI charge of $193,000, the remaining carrying value of this security.
	Because of the subprime crisis, current markets for variable rate corporate trust preferred securities are illiquid. This includes the Company’s eight stand-alone trust preferred securities and the Company’s one pooled trust preferred security. The Company used a discounted cash flow method to price these securities due to a lack of liquidity for resale of this investment type and the absence of reliable pricing information. This method is described more fully in footnote 9, “Fair Value.”
	The following table summarizes scheduled maturities of the Company’s securities as of June 30, 2014 and December 31, 2013 excluding equity securities which have no maturity dates:
	As of June 30, 2014
	(Dollar amounts in thousands)		Available for sale
			Weighted			Amortized		Fair
			Average Yield			cost		value
	Due in one year or less			3.74	%	$	39,789	$	40,436
	Due from one year to five years			2.79	%		151,769		156,561
	Due from five to ten years			3.42	%		95,929		99,642
	Due after ten years			3.06	%		777,318		795,262
				3.08	%	$	1,064,805	$	1,091,901
	As of December 31, 2013
	(Dollar amounts in thousands)		Available for sale
		Weighted			Amortized		Fair
		Average Yield			cost		value
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.
The proceeds from the sale of securities for the six month period ended June 30, 2014 was $563,000 resulting in gross realized gains of $288,000. The proceeds from the sale of securities for the six month period ended June 30, 2013 was $1.8 million resulting in gross realized gains of $467,000. There were no gross realized losses for the six months ended June 30, 2014 and June 30, 2013, respectively.

Loans_Receivable

Loans Receivable	6 Months Ended
	Jun. 30, 2014
Receivables [Abstract]	'
Loans Receivable	'
	3	Loans Receivable
	The Company’s loans receivable as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)		June 30,			December 31,
			2014			2013
	Mortgage loans:
	Residential real estate
	Single family		$	347,223		$	341,775
	Multi family			42,154			37,857
	Construction			40,590			44,327
	Total residential real estate			429,967			423,959
	Commercial real estate
	Commercial			91,310			77,366
	Construction			10,235			25,971
	Total commercial real estate			101,545			103,337
	Subtotal mortgage loans			531,512			527,296
	Other loans:
	Consumer loans
	Home equity loans			84,504			82,987
	Dealer auto and RV loans			49,437			46,502
	Other loans			6,047			6,653
	Total consumer loans			139,988			136,142
	Commercial business			55,071			52,801
	Subtotal other loans			195,059			188,943
	Total loans receivable			726,571			716,239
	Less:
	Allowance for loan losses			6,816			6,805
	Deferred loan fees and net discounts			(2,329	)		(2,007	)
	Loans in process			12,711			15,805
	Subtotal			17,198			20,603
	Net loans receivable		$	709,373		$	695,636
	At June 30, 2014 and December 31, 2013, the Company conducted 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
		•		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
		•		Trends in volume and terms
		•		Experience depth and ability of management
	These qualitative factors are reviewed each quarter and adjusted based upon relevant changes within the portfolio. During the first six months of 2014, the qualitative factors for trends in volume and terms remained unchanged from December 31, 2013.
	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 loans. The Company has historically experienced very low levels of 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 June 30, 2014. The following tables present by portfolio segment, the changes in the allowance for loan losses for the three and six month periods ended June 30, 2014 and 2013:
	Three months ended June 30, 2014
	(Dollar amounts in thousands)					Commercial
			Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance		$	535		$	1,832		$	1,045	$	2,786		$	520		$	6,718
	Charge-offs			—			—			59		26			—			85
	Recoveries			10			—			23		—			—			33
	Provision			(74	)		(96	)		63		384			(127	)		150
	Ending Balance		$	471		$	1,736		$	1,072	$	3,144		$	393		$	6,816
	Three months ended June 30, 2013
	(Dollar amounts in thousands)					Commercial
			Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance		$	556		$	2,197		$	1,064	$	2,389		$	515		$	6,721
	Charge-offs			—			7			107		1			2			117
	Recoveries			—			—			49		—			—			49
	Provision			(13	)		(88	)		56		37			83			75
	Ending Balance		$	543		$	2,102		$	1,062	$	2,425		$	596		$	6,728
	Six months ended June 30, 2014
(Dollar amounts in thousands)					Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
Allowance for loan losses:
Beginning balance		$	523		$	1,723		$	1,054	$	2,996		$	509		$	6,805
Charge-offs			—			—			171		34			—			205
Recoveries			103			—			53		—			—			156
Provision			(155	)		13			136		182			(116	)		60
Ending Balance		$	471		$	1,736		$	1,072	$	3,144		$	393		$	6,816
Six months ended June 30, 2013
(Dollar amounts in thousands)					Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
Allowance for loan losses:
Beginning balance		$	550		$	2,075		$	1,031	$	2,541		$	512		$	6,709
Charge-offs			—			7			253		11			2			273
Recoveries			—			—			67		—			—			67
Provision			(7	)		34			217		(105	)		86			225
Ending Balance		$	543		$	2,102		$	1,062	$	2,425		$	596		$	6,728
The following tables present by portfolio segment, the recorded investment in loans at June 30, 2014 and December 31, 2013:
As of June 30, 2014
(Dollar amounts in thousands)					Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
Allowance for loan losses:
Ending Balance		$	558		$	1,876		$	1,034	$	2,828		$	520		$	6,816
Ending balance: individually evaluated for impairment		$	56		$	847		$	47	$	401					$	1,351
Ending balance: collectively evaluated for impairment		$	415		$	889		$	1,025	$	2,743		$	393		$	5,465
Loans Receivable:
Ending Balance		$	55,071		$	101,545		$	139,988	$	429,967		$	—		$	726,571
Ending balance: individually evaluated for impairment		$	56		$	13,957		$	461	$	2,356		$	—		$	16,830
Ending balance: collectively evaluated for impairment		$	55,015		$	87,588		$	139,527	$	427,611		$	—		$	709,741
As of December 31, 2013
(Dollar amounts in thousands)					Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
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
Credit Quality Information
The following tables represent credit exposures by internally assigned grades as of June 30, 2014 and 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 June 30, 2014
(Dollar amounts in thousands)
		Residential			Residential			Commercial		Commercial			Commercial			Total
		Real Estate			Real Estate			Real Estate		Real Estate
		Multi - family			Construction			Commercial		Construction
Pass		$	42,154		$	38,256		$	78,056	$	10,235		$	55,032		$	223,733
Special Mention			—			341			1,222		—			11			1,574
Substandard			—			1,993			12,032		—			28			14,053
Doubtful			—			—			—		—			—			—
Loss			—			—			—		—			—			—
Ending Balance		$	42,154		$	40,590		$	91,310	$	10,235		$	55,071		$	239,360
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
The following tables present performing and nonperforming single family residential and consumer loans based on payment activity as of June 30, 2014 and December 31, 2013. 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 June 30, 2014
(Dollar amounts in thousands)
		Residential Real Estate			Consumer			Dealer		Other			Total
		Single Family			Home Equity			Auto and RV		Consumer
Performing		$	343,873		$	84,272		$	49,291	$	5,972		$	483,408
Nonperforming			3,350			232			146		75			3,803
Total		$	347,223		$	84,504		$	49,437	$	6,047		$	487,211
As of December 31, 2013
(Dollar amounts in thousands)
		Residential Real Estate			Consumer			Dealer		Other			Total
		Single Family			Home Equity			Auto and RV		Consumer
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
Nonperforming loans also include certain loans that have been modified and classified as troubled debt restructuring (TDR) 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 non-accrual loans and TDRs, were $8.9 million and $7.4 million at June 30, 2014 and December 31, 2013, respectively. The TDRs included in non-performing loans amounted to $186,000 and $368,000 at June 30, 2014 and December 31, 2013, respectively. The Company also had TDR’s that were in compliance with their modified terms of $9.3 million and $8.2 million at June 30, 2014 and December 31, 2013, respectively. 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 are an aging analysis of the investment of past due loans receivable as of June 30, 2014 and December 31, 2013:
(Dollar amounts in thousands)																		Recorded
																		Investment >
As of June 30, 2014																		90 Days and
		30-59 Days			60-89 Days			90 Days		Total Past			Current			Total Loans		Accruing
		Past Due			Past Due			Or Greater		Due						Receivable
Residential real estate
Single family		$	633		$	475		$	3,350	$	4,458		$	342,765		$	347,223	$	—
Construction			—			—			—		—			40,590			40,590		—
Multi-family			—			—			—		—			42,154			42,154		—
Commercial Real Estate
Commercial			105			7			5,023		5,135			86,175			91,310		—
Construction			—			—			—		—			10,235			10,235		—
Consumer
Consumer - home equity			96			28			124		248			84,256			84,504		—
Consumer - dealer auto and RV			497			138			124		759			48,678			49,437		—
Consumer - other			37			24			75		136			5,911			6,047		—
Commercial			—						28		28			55,043			55,071		—
Total		$	1,368		$	672		$	8,724	$	10,764		$	715,807		$	726,571	$	—
(Dollar amounts in thousands)																		Recorded
																		Investment >
As of December 31, 2013																		90 Days and
		30-59 Days			60-89 Days			90 Days		Total Past			Current			Total Loans		Accruing
		Past Due			Past Due			Or Greater		Due						Receivable
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	$	—
Impaired Loans
Management considers commercial loans, commercial real estate loans and development loans which are 90 days or more past due to be impaired. Larger commercial loans, commercial real estate loans and development loans which are 60 days or more past due, including any troubled debt restructuring, are selected for impairment testing in accordance with GAAP. 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 residential real estate and consumer loans for impairment.
The following tables summarize impaired loans:
Impaired Loans
As of June 30, 2014 and December 31, 2013
(Dollar amounts in thousands)
		June 30, 2014								December 31, 2013
		Recorded			Unpaid			Related		Recorded			Unpaid			Related
		Investment			Principal			Allowance		Investment			Principal			Allowance
					Balance								Balance
With no related allowance recorded:
Commercial Real Estate		$	2,834		$	2,940		$	—	$	3,139		$	3,246		$	—
Residential single family			1,380			1,380			—		1,356			1,356			—
Residential construction			—			—			—		850			850			—
Consumer loans
Home Equity			286			289			—		249			253			—
Dealer auto and RV			24			24			—		6			6			—
With an allowance recorded:
Commercial Real Estate		$	11,123		$	11,287		$	847	$	11,246		$	11,409		$	989
Commercial Business			56			56			56		24			24			24
Residential Single Family			976			976			401		—			—			—
Consumer Loans:
Home Equity			148			148			44		149			149			45
Dealer auto and RV			3			3			3		3			3			3
Total:
Commercial Real Estate			13,957			14,227			847		14,385			14,655			989
Commercial Business			56			56			56		24			24			24
Residential single family			2,356			2,356			401		1,356			1,356			—
Residential construction			—			—			—		850			850			—
Consumer			461			464			47		407			411			48
Total		$	16,830		$	17,103		$	1,351	$	17,022		$	17,296		$	1,061
(Dollar amounts in thousands)
		Three months ended						Three months ended
		June 30, 2014						June 30, 2013
		Average			Interest			Average		Interest
		Recorded			Income			Recorded		Income
		Investment			Recognized			Investment		Recognized
With no related allowance recorded:
Commercial Real Estate		$	2,978		$	13		$	5,279	$	50
Commercial business loans			—			—			—		—
Residential single family			1,364			—			1,358		1
Residential construction loans			—			—			944		11
Consumer Loans:
Home equity			273			3			190		2
Dealer auto and RV			25			—			10		1
With an allowance recorded:
Commercial Real Estate			11,145			113			8,420		134
Commercial business loans			56			—			—		—
Residential single family			976			—			—		—
Residential construction loans			—			—			—		—
Consumer Loans:
Home equity			148			3			176		2
Dealer auto and RV			3			—			4		—
Total:
Commercial Real Estate		$	14,123		$	126		$	13,699	$	184
Commercial business loans			56			—			—		—
Residential single family			2,340			—			1,358		1
Residential construction loans			—			—			944		11
Consumer			449			6			380		5
(Dollar amounts in thousands)
		Six months ended June 30,						Six months ended June 30,
		2014						2013
		Average			Interest			Average		Interest
		Recorded			Income			Recorded		Income
		Investment			Recognized			Investment		Recognized
With no related allowance recorded:
Commercial Real Estate		$	3,025		$	27		$	5,207	$	120
Commercial business loans			—			—			—		—
Residential single family			1,360			1			1,359		4
Residential construction loans			—			—			898		18
Consumer Loans:
Home equity			262			7			170		6
Dealer auto and RV			26			1			11		2
With an allowance recorded:
Commercial Real Estate			11,179			226			8,180		258
Commercial business loans			56			1			—		—
Residential single family			488			—			—		—
Residential construction loans			—			—			—		—
Consumer Loans:
Home equity			149			4			175		5
Dealer auto and RV			3			—			4		—
Total:
Commercial Real Estate		$	14,204		$	253		$	13,387	$	378
Commercial business loans			56			1			—		—
Residential single family			1,848			1			1,359		4
Residential construction loans			—			—			898		18
Consumer			440			12			360		13
Nonaccrual Loans
Loans are considered nonaccrual upon reaching 90 days delinquent, 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.
On the following table are the loans receivable on nonaccrual status as of June 30, 2014 and December 31, 2013. The balances are presented by class of loans:
(Dollar amounts in thousands)		June 30,			December 31,
		2014			2013
Commercial		$	28		$	30
Commercial Real Estate			5,023			4,787
Residential			3,350			3,405
Consumer
Consumer - Home Equity			124			214
Consumer - Dealer auto and RV			124			136
Consumer - other			75			65
Total		$	8,724		$	8,637
Modifications
The Company’s loan portfolio also includes 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.
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 June 30, 2014 and December 31, 2013. 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.
(Dollar amounts in thousands)
		For the Three Months ended
		June 30, 2014
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
Troubled Debt Restructurings
Consumer
Home equity			1		$	46		$	46	$	—		$	—		$	46
Troubled Debt Restructurings			1		$	46		$	46	$	—		$	—		$	46
(Dollar amounts in thousands)
		For the Three Months ended
		June 30, 2013
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
Troubled Debt Restructurings
Commercial real estate			11		$	2,288		$	26	$	—		$	2,262		$	2,288
Consumer
Home equity			3			15			15		—			—			15
Troubled Debt Restructurings			14		$	2,303		$	41	$	—		$	2,262		$	2,303
(Dollar amounts in thousands)
		For the Six Months ended
		June 30, 2014
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
Troubled Debt Restructurings
Commercial			1		$	57		$	—	$	—		$	57		$	57
Consumer
Home equity			2			57			46					11			57
Dealer auto and RV			2			24			7		—			17			24
Troubled Debt Restructurings			5		$	138		$	53	$	—		$	85		$	138
(Dollar amounts in thousands)
		For the Six Months ended
		June 30, 2013
								Post-Modification Recorded Investment
					Pre-Modification
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
Troubled Debt Restructurings
Commercial real estate			12		$	2,331		$	26	$	—		$	2,305		$	2,331
Consumer
Home equity			6			91			91		—			—			91
Troubled Debt Restructurings			18		$	2,422		$	117	$	—		$	2,305		$	2,422
The Company did not have any TDRs that defaulted subsequent to their modification during the periods reported.

Deposits

Deposits	6 Months Ended
	Jun. 30, 2014
Banking And Thrift [Abstract]	'
Deposits	'
	4	Deposits
	The Company’s deposits as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)		June 30, 2014					December 31, 2013
	Type of accounts		Amount		%			Amount		%
	Noninterest-bearing deposits		$	124,390		9.6	%	$	124,777		10.2	%
	NOW account deposits			302,677		23.3	%		234,163		19.2	%
	Money Market deposits			42,240		3.2	%		39,688		3.2	%
	Passbook account deposits			184,085		14.2	%		178,412		14.6	%
	Time deposits			646,771		49.7	%		645,727		52.8	%
			$	1,300,163		100	%	$	1,222,767		100	%
	The Company’s time deposits mature as follows:
	(Dollar amounts in thousands)		June 30, 2014					December 31, 2013
			Amount		%			Amount		%
	Within one year		$	456,259		70.6	%	$	437,731		67.8	%
	After one year through two years			99,597		15.4	%		115,976		18	%
	After two years through three years			67,773		10.5	%		60,045		9.3	%
	After three years through four years			12,897		2	%		16,393		2.5	%
	After four years through five years			6,130		0.9	%		10,871		1.7	%
	Thereafter			4,115		0.6	%		4,711		0.7	%
			$	646,771		100	%	$	645,727		100	%

Borrowed_Funds

Borrowed Funds	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Borrowed Funds	'
	5	Borrowed Funds
	The Company’s borrowed funds as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)		June 30, 2014					December 31, 2013
			Weighted					Weighted
			average					average
			rate			Amount		rate			Amount
	FHLB advances:
	Due within 12 months			1.95	%	$	57,180		2.12	%	$	101,492
	Due beyond 12 months but within 2 years			0.95	%		60,075		2.14	%		25,873
	Due beyond 2 years but within 3 years			1.11	%		85,466		0.99	%		78,008
	Due beyond 3 years but within 4 years			1.6	%		44,375		1.34	%		73,380
	Due beyond 4 years but within 5 years			3.21	%		12,628		3.26	%		12,168
						$	259,724				$	290,921
	Repurchase agreements:
	Due within 12 months			2.24	%	$	38,000		2.34	%	$	58,000
	Due beyond 12 months but within 2 years			—			—		4.12	%		10,000
	Due beyond 2 years but within 3 years			4.28	%		25,000		—			—
	Due beyond 3 years but within 4 years			3.9	%		10,000		4.28	%		25,000
	Due beyond 4 years but within 5 years			4.66	%		35,000		4.49	%		45,000
						$	108,000				$	138,000
	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	%		750		4.68	%		1,000
	Due beyond 2 years but within 3 years			—			—		4.68	%		250
						$	1,750				$	2,250
	Corporate borrowings
	Due within 12 months			3.75	%	$	1,000		3.75	%	$	1,000
	Due beyond 12 months but within 2 years			3.75	%		1,000		3.75	%		1,000
	Due beyond 2 years but within 3 years			3.75	%		1,000		3.75	%		1,000
	Due beyond 3 years but within 4 years			3.75	%		5,972		3.75	%		1,000
	Due beyond 4 years but within 5 years			—			—		3.75	%		5,973
						$	8,972				$	9,973
	Junior subordinated notes
	Due beyond 5 years			2.04	%	$	36,083		2.06	%	$	36,083
	Included in the $108.0 million of Repurchase Agreements (REPOs) is a $10.0 million structured REPO with an imbedded cap at a strike rate of 3.00% 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 $108.0 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 market value of such securities exceeded the amortized cost of the securities sold under agreements to repurchase. The market value of the securities as of June 30, 2014 was $129.9 million with an amortized cost of $122.0 million. The market value of the securities as of December 31, 2013 was $168.8 million with an amortized cost of $160.4 million. The average maturity date of the mortgage backed securities sold under agreements to repurchase was greater than 90 days for the periods ended June 30, 2014 and December 31, 2013.
	As of June 30, 2014 and December 31, 2013, the Company had REPOs with Citigroup of $25.0 million and $45.0 million respectively, Barclays Capital of $30.0 million and $30.0 million, respectively, Credit Suisse of $43.0 million and $43.0 million, respectively and Morgan Stanley of $10.0 million and $20.0 million, respectively.
	As of June 30, 2014, the REPOs with Citigroup had $2.3 million at risk (where the market value of the securities exceeds the borrowing), with a weighted average maturity of 34 months, Barclays Capital had $6.3 million at risk with a weighted average maturity of 37 months, Credit Suisse had $10.7 million at risk with a weighted average maturity of 32 months and Morgan Stanley had $81,000 million at risk with a weighted average maturity of one month.
	Borrowings under REPO averaged $114.7 million and $123.0 million during the three months and six months ended June 30, 2014, respectively. The maximum amount outstanding at any month-end was $118.0 million and $138.0 million during the three and six months ended June 30, 2014, respectively.
	The junior subordinated notes have various maturities, interest rate structures and call dates. The characteristics of these notes are detailed in the following paragraphs.
	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.

Net_Income_Per_Share

Net Income Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Net Income Per Share	'
	6	Net Income Per Share
	The following table summarizes the Company’s net income per share:
	(Amounts, except earnings per share, in thousands)
			Three Months		Three Months
			Ended		Ended
			June 30, 2014		June 30, 2013
	Net income		$	4,700	$	3,876
	Weighted-average common shares outstanding			17,579		17,353
	Basic earnings per share		$	0.27	$	0.22
	Weighted-average common shares outstanding			17,579		17,353
	Common stock equivalents due to effect of stock options			195		169
	Total weighted-average common shares and equivalents			17,774		17,522
	Diluted earnings per share		$	0.26	$	0.22
			Six Months		Six Months
			Ended		Ended
			30-Jun-14		30-Jun-13
	Net income		$	9,040	$	7,590
	Weighted-average common shares outstanding			17,558		17,333
	Basic earnings per share		$	0.51	$	0.44
	Weighted-average common shares outstanding			17,558		17,333
	Common stock equivalents due to effect of stock options			209		161
	Total weighted-average common shares and equivalents			17,767		17,494
	Diluted earnings per share		$	0.51	$	0.43
	The shares controlled by the Company’s Employee Stock Ownership Plan (ESOP) of 200,569 and 296,095 at June 30, 2014 and June 30, 2013, 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 32,353 shares at $10.35 per diluted share expiring November 2020, 51,707 shares at $11.00 per diluted share expiring November 2021, 120,556 shares at $10.50 per diluted share expiring November 2022 and 258,354 shares at $13.36 per diluted share expiring November 2023 were outstanding as of June 30, 2014, 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.
	Options to purchase 65,386 shares at $10.35 per diluted share expiring November 2020, 78,424 shares at $11.00 per diluted share expiring November 2021 and 190,335 shares at $10.50 per diluted share expiring November 2022 were outstanding as of June 30, 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.

Comprehensive_Income

Comprehensive Income	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Comprehensive Income	'
	7	Comprehensive Income
	The Company has developed the following table to present the components of accumulated OCI for the three and six month periods ended June 30, 2014 and 2013:
	(Dollar amounts in thousands)
			Three Months Ended			Three Months Ended
			June 30, 2014			June 30, 2013			Affected line item
	Details about AOCI Components		Amount			Amount			in the Statement where net
			Reclassifed from AOCI			Reclassifed from AOCI			income is presented
	Available-for-sale securities
	Realized gain on sale of securities		$	—		$	(198	)	Net realized gain on securities available for sale
	Impairment expense			—			—		Net impairment losses on investment securities
				—			(198	)	Total before tax
				—			67		Provision for income taxes
				—			(131	)	Net of tax
	Defined benefit pension plan items
	Amortization of prior service costs			23			26		See Note 1 below
	Amortization of actuarial gains/(losses)			10			10		See Note 1 below
				33			36		Total before tax
				(11	)		(12	)	Provision for income taxes
				22			24		Net of tax
	Total reclassifications		$	22		$	(107	)	Net of tax
			Six Months Ended			Six Months Ended
			30-Jun-14			30-Jun-13			Affected line item
	Details about AOCI Components		Amount			Amount			in the Statement where net
			Reclassifed from AOCI			Reclassifed from AOCI			income is presented
	Available-for-sale securities
	Realized gain on sale of securities		$	(288	)	$	(467	)	Net realized gain on securities available for sale
	Impairment expense			193			—		Net impairment losses on investment securities
				(95	)		(467	)	Total before tax
				32			159		Provision for income taxes
				(63	)		(308	)	Net of tax
	Defined benefit pension plan items
	Amortization of prior service costs			47			53		See Note 1 below
	Amortization of actuarial gains/(losses)			20			20		See Note 1 below
				67			73		Total before tax
				(23	)		(25	)	Provision for income taxes
				44			48		Net of tax
	Total reclassifications		$	(19	)	$	(260	)	Net of tax
	Note 1: These items are included in the computation of net periodic pension cost. See Note 8, Retirement Plans, for additional information.
	(Dollar amounts in thousands)
			Three Months ended June 30, 2014
			Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
			Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance		$	(2,417	)	$	12,719		$	(455	)	$	9,847
	Other comprehensive income/(loss) before reclassification			29			5,675			—			5,704
	Amounts reclassified from AOCI			—			—			22			22
	Net current period OCI			29			5,675			22			5,726
	Ending Balance		$	(2,388	)	$	18,394		$	(433	)	$	15,573
	(Dollar amounts in thousands)
			Three Months ended June 30, 2013
			Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
			Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance		$	(3,556	)	$	27,327		$	(604	)	$	23,167
	Other comprehensive income/(loss) before reclassification			726			(14,199	)		—			(13,473	)
	Amounts reclassified from AOCI			—			(131	)		24			(107	)
	Net current period OCI			726			(14,330	)		24			(13,580	)
	Ending Balance		$	(2,830	)	$	12,997		$	(580	)	$	9,587
	(Dollar amounts in thousands)
			Six Months ended June 30, 2014
			Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
			Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance		$	(2,515	)	$	7,608		$	(478	)	$	4,615
	Other comprehensive income/(loss) before reclassification			127			10,850			—			10,977
	Amounts reclassified from AOCI			—			(63	)		44			(19	)
Net current period OCI			127			10,787			44			10,958
Ending Balance		$	(2,388	)	$	18,395		$	(434	)	$	15,573
(Dollar amounts in thousands)
		Six Months ended June 30, 2013
		Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
		Cash Flow Hedges			available-for-sale securities			plan items			Total
Beginning balance		$	(3,733	)	$	29,464		$	(628	)	$	25,103
Other comprehensive income/(loss) before reclassification			904			(16,160	)		—			(15,256	)
Amounts reclassified from AOCI			—			(308	)		48			(260	)
Net current period OCI			904			(16,468	)		48			(15,516	)
Ending Balance		$	(2,829	)	$	12,996		$	(580	)	$	9,587

Retirement_Plans

Retirement Plans	6 Months Ended
	Jun. 30, 2014
Compensation And Retirement Disclosure [Abstract]	'
Retirement Plans	'
	8	Retirement Plans
	Supplemental Executive Retirement Plan and Directors’ Retirement Plan
	The Company maintains 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 ratio, ranging from 1.25% to 25.0%, based on the participant’s total years of service. Final average pay is based upon the participant’s last three year’s compensation. The maximum ratio of 25% requires twenty or more years of credited service and the minimum ratio of 1.25% requires one year of credited service. Benefits under the plan are payable in either a lump sum or 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 June 30, 2014, the participants in the plan had credited service under the SERP ranging from 23 to 35 years.
	The Company and the Bank maintain the ESB Financial Corporation Directors’ Retirement Plan and have 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. Three directors are currently receiving monthly benefits under the plan.
	The following table illustrates the components of the net periodic pension cost for the SERP and Directors Retirement Plan as of June 30, 2014 and 2013:
	(Dollar amounts in thousands)		SERP				SERP
			Three Months		Three Months		Six Months		Six Months
			Ended		Ended		Ended		Ended
			June 30, 2014		June 30, 2013		June 30, 2014		June 30, 2013
	Components of net periodic pension cost
	Service cost		$	22	$	25	$	44	$	50
	Interest cost			36		28		72		56
	Amortization of prior service cost			22		26		44		52
	Amortization of unrecognized gains and losses			10		10		20		20
	Net periodic pension cost		$	90	$	89	$	180	$	178
	(Dollar amounts in thousands)		Directors’ Retirement Plan				Directors’ Retirement Plan
			Three Months		Three Months		Six Months		Six Months
			Ended		Ended		Ended		Ended
			30-Jun-14		30-Jun-13		30-Jun-14		30-Jun-13
	Components of net periodic pension cost
	Service cost		$	2	$	1	$	4	$	2
	Interest cost			9		7		18		14
	Net periodic pension cost		$	11	$	8	$	22	$	16

Fair_Value

Fair Value	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	9	Fair Value
	Fair value is defined by GAAP as the amount that an asset could be bought or sold, or a liability incurred or settled, between willing parties, other than during a liquidation. GAAP established a fair value hierarchy that prioritizes the use of inputs in valuation methodologies into the following three levels:
	Level I:		Inputs to the valuation methodology are quoted prices, unadjusted, for identical assets or liabilities in active markets, as of the reported date. A quoted price in an active market provides the most reliable evidence of fair value and shall be used to measure fair value whenever available. A contractually binding sales price also provides reliable evidence of fair value.
	Level II:		Inputs to the valuation methodology include quoted prices for similar assets or liabilities in active markets: inputs to the valuation methodology include quoted prices for identical or similar assets or liabilities in markets that are not active; or inputs to the valuation methodology that utilize the model-based techniques for which all significant assumptions are observable in the market.
	Level III:		Inputs to the valuation methodology are unobservable and significant to the fair value measurement; inputs to the valuation methodology that utilize a model-based techniques for which significant assumptions are not observable in the market; or inputs to the valuation methodology that requires significant management judgment or estimation, some of which may be internally developed.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	Investment Securities Available-for-Sale
	Management classifies the Company’s equity securities as Level 1 measurements since quoted market prices were available, unadjusted, for identical securities in active markets. Declines in the fair value of individual equity securities that are deemed to be other than temporary, will be written down to current market value and included in earnings as realized losses. Level 2 investment securities were primarily comprised of debt securities issued by states and municipalities and corporations as well as mortgage-backed securities issued by government agencies. On a monthly basis, the 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 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. 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, therefore the Company classifies these securities as Level III. 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 35 to 65 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 49.44% of the $37.1 million in floating rate trust preferred securities at June 30, 2014 represent investments in three of the four largest banks in the United States.
	Derivative Financial Instruments
	Derivative financial instruments recorded at fair value on a recurring basis are comprised of interest rate caps and interest rate swap agreements. The Company classifies these instruments as Level II. The Company determines the fair value of the interest rate caps quarterly by using quoted prices from two brokers. The maximum market indication used is the highest price obtained from the brokers, unless this price is Level III as indicated by the broker. If so this price is excluded and the highest Level II is used. The Company utilizes a third-party pricing service to measure its interest rate swap contracts. This service provides pricing information by utilizing evaluated pricing models, supported with market data information. Cash flows are projected for each payment date using the index forward curve. These swap cash flows are then discounted to time zero using LIBOR zero-coupon interest rates, the accepted cost of funds for a financial institution. The implicit assumption is that the risk associated with the cash flows on the derivative is the same as the risk associated with a loan in the interbank market. The present value of the fixed portion is then added to the present value of the floating portion. The sum of both is the fair market value of the interest rate swap.
	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 June 30, 2014 and December 31, 2013 by level within the fair value hierarchy. As required by GAAP, 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 June 30, 2014
	(Dollar amounts in thousands)		Quoted Prices			Significant Other		Significant			Total
			in Active			Observable		Unobservable
			Markets for			Inputs		Inputs
			Identical Assets			(Level II)		(Level III)
			or Liabilities
			(Level I)
	Assets:
	Securities available for sale
	Trust preferred securities		$	—		$	1,799	$	37,055		$	38,854
	Municipal securities			—			180,312		—			180,312
	Equity securities			1,453			—		—			1,453
	Corporate bonds			—			186,618		—			186,618
	Mortgage backed securities
	U.S. sponsored entities			—			684,545		—			684,545
	Private label			—			1,572		—			1,572
	Subtotal mortgage-backed securities			—			686,117		—			686,117
	Total securities available for sale		$	1,453		$	1,054,846	$	37,055		$	1,093,354
	Other Assets
	Interest rate caps		$	—		$	462	$	—		$	462
	Total other assets		$	—		$	462	$	—		$	462
	Liabilities
	Other Liabilities
	Interest rate swaps		$	—		$	3,618	$	—		$	3,618
	Total other liabilities		$	—		$	3,618	$	—		$	3,618
			As of December 31, 2013
	(Dollar amounts in thousands)		Quoted Prices			Significant Other		Significant			Total
			in Active			Observable		Unobservable
			Markets for			Inputs		Inputs
			Identical Assets			(Level II)		(Level III)
			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 Liabilities
	Interest rate swaps		$	—		$	3,870	$	—		$	3,870
	Total other liabilities		$	—		$	3,870	$	—		$	3,870
	There were no transfers between Level I and Level II assets measured at fair value. The following table presents the changes in the Level III assets measured at fair value on a recurring basis for the three and six month periods ended June 30, 2014 and 2013.
	Fair value measurements using significant unobservable inputs (Level III).
		Securities available for sale					Securities available for sale
		Three months ended					Six months ended
		June 30,					June 30,
		2014			2013		2014			2013
Beginning balance January 1,		$	37,146		$	36,353	$	37,209		$	36,179
Total net realized/unrealized gains (losses)
Included in earnings:
Interest income on securities			4			4		7			7
Net realized loss on securities available for sale			—			—		(193	)		—
Included in other comprehensive income			(95	)		577		32			748
Transfers in and/or out of Level III			—			—		—			—
Purchases, issuances and settlements
Purchases			—			—		—			—
Issuances			—			—		—			—
Sales			—			—		—			—
Settlements			—			—		—			—
Ending balance, June 30,		$	37,055		$	36,934	$	37,055		$	36,934
The following table summarizes changes in unrealized gains and losses recorded in earnings for the three and six month period ended June 30, 2014 and 2013 for Level III assets and liabilities that are still held at June 30, 2014 and 2013.
		Securities available for sale					Securities available for sale
		Three months ended					Six months ended
		June 30,					June 30,
		2014			2013		2014			2013
Interest income on securities		$	4		$	4	$	7		$	7
Net realized loss on securities available for sale			—			—		(193	)		—
Total		$	4		$	4	$	(186	)	$	7
For Level III assets measured at fair value on a recurring or non-recurring basis as of June 30, 2014, 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 Unobservable	2014 Range		2013 Range
		June 30, 2014			December 31,		Technique		Inputs	(Weighted Average)		(Weighted Average)
					2013
Trust Preferred Securities		$	37,055		$	37,209	Discounted Cash Flow		Credit Spreads	35-65 (52.5) basis points		40-75 (62.5) basis points
									Liquidity Risk Adjustments	20-55 (36) basis points		20-55 (36) basis points
									Default Rates	.6%-1%		.6%-1%
Impaired Loans			15,479			15,961	Appraisal of collateral (1)		Appraisal value and liquidation expense	2.84%-48.93%(9.91%)		2.84%-48.93%(9.95%)
Real estate acquired through foreclosure			2,141			1,977	Appraisal of collateral (1)		N/A	N/A		N/A
Servicing assets			5			9	Discounted Cash Flow		Remaining term	.75 yrs to 16.40 yrs (12 yrs)		1 yrs to 16.65 yrs (12.5 yrs)
									Discount Rate	11.25%-12.25% (11.36%)		11.25%-12.25%(11.36%)
-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 above under 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.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
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 the period ended June 30, 2014 and 2013, the Company incurred write-downs on its REO properties of $15,000 and $50,000, respectively. There were no adjustments to the fair value for 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	6 Months Ended
	Jun. 30, 2014
Investments All Other Investments [Abstract]	'
Financial Instruments	'
	10	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 - With the exception of floating rate trust preferred securities ( the valuation of the trust preferred securities is discussed in footnote 9, Fair Value), 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.
	Securities receivable - The carrying amount of securities receivable approximates their fair values.
	Loans receivable and held for sale - 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. The carrying amounts of loans held for sale approximate their fair values.
	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 June 30, 2014 and December 31, 2013 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 junior subordinated notes - 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 tables set forth the carrying amount and fair value of the Company’s financial instruments included in the consolidated statement of financial condition as of June 30, 2014 and December 31, 2013:
	June 30, 2014
	(Dollar amounts in thousands)		Carrying		Quoted Prices		Significant		Significant		Total Fair
			Value		in Active		Other		Unobservable		Value
					Markets for		Observable		Inputs
					Identical		Inputs		(Level III)
					Assets or		(Level II)
					Liabilities
					(Level I)
	Financial Assets:
	Cash and Cash Equivalents		$	14,868	$	14,868	$	—	$	—	$	14,868
	Securities			1,093,354		1,453		1,054,846		37,055		1,093,354
	Securities Receivable			2,380		2,380		—		—		2,380
	Loans receivable and held for sale			709,373		—		—		732,778		732,778
	Accrued Interest Receivable			7,342		7,342		—		—		7,342
	FHLB Stock			14,115		14,115		—		—		14,115
	Bank owned life insurance			30,235		30,235		—		—		30,235
	Interest rate cap contracts			462		—		462		—		462
	Financial Liabilities:
	Deposits			1,300,163		653,392		—		652,407		1,305,799
	Borrowed funds			378,446		—		119,727		270,675		390,402
	Junior subordinated notes			36,083		—		27,062		—		27,062
	Advance payments by borrowers for taxes and insurance			3,515		3,515		—		—		3,515
	Accrued interest payable			2,048		2,048		—		—		2,048
	Interest rate swap contracts			3,618		—		3,618		—		3,618
	December 31, 2013
	(Dollar amounts in thousands)		Carrying		Quoted Prices		Significant		Significant		Total Fair
			Value		in Active		Other		Unobservable		Value
					Markets for		Observable		Inputs
					Identical		Inputs		(Level III)
					Assets or		(Level II)
					Liabilities
					(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 and held for sale			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 payments 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

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2014

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, which are ESB Bank (ESB or the Bank), THF, Inc. (THF), ESB Financial Services, Inc. (EFS) and AMSCO, Inc. (AMSCO). 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. AMSCO is currently involved in nine real estate joint ventures, all of which are owned 51% or greater by AMSCO. The Bank has provided all development and construction financing. These joint ventures have been included in the consolidated financial statements and reflected within the consolidated statements of financial condition as real estate held for investment and related operating income and expenses are reflected within other non-interest 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 accompanying unaudited consolidated financial statements for the interim periods include all adjustments, consisting only of normal recurring accruals, which are necessary, in the opinion of management, to fairly reflect the Company’s financial position and results of operations. Additionally, these consolidated financial statements for the interim periods have been prepared in accordance with instructions for the Securities and Exchange Commission’s Form 10-Q and therefore do not include all information or footnotes necessary for a complete presentation of financial condition, results of operations and cash flows in conformity with U.S. generally accepted accounting principles (GAAP). For further information, refer to the audited consolidated financial statements and footnotes thereto for the year ended December 31, 2013, as contained in the Company’s 2013 Annual Report to Stockholders.

The results of operations for the three and six month periods ended June 30, 2014 are not necessarily indicative of the results that may be expected for the entire year. Certain amounts previously reported have been reclassified to conform to the current periods’ reporting format, such reclassifications did not have an effect on stockholders’ equity or net income.

The accounting principles followed by the Company and the methods of applying these principles conform with GAAP and with general practice within the banking industry. In preparing the consolidated financial statements management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the Statement of Financial Condition date and revenues and expenses for the period. Actual results could differ significantly from those estimates.

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. At June 30, 2014, the Company was doing business through 23 full service banking branches, one loan production office and through 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, non-interest 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 banking industry. Consistent with internal reporting, the Company’s operations are reported in one operating segment, which is community banking.

Stock-Based Compensation

'

Stock Based Compensation

During the three and six months ended June 30, 2014, the Company recorded approximately $235,000 and $463,000, respectively, in compensation expense and a tax benefit of $33,000 and $55,000, respectively, related to our share-based compensation awards that are expected to vest in 2014.

During the three and six months ended June 30, 2013, the Company recorded approximately $185,000 and $357,000, respectively, in compensation expense and a tax benefit of $19,000 and $38,000, respectively, related to our share-based compensation awards that were expected to vest in 2013. As of June 30, 2014, there was approximately $992,000 of unrecognized compensation cost related to unvested share-based compensation awards granted. That cost is expected to be recognized over the next four years.

As required by GAAP, cash flows from the tax benefits resulting from tax deductions in excess of the compensation cost recognized for stock-based awards (excess tax benefits) are classified as financing cash flows.

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 other comprehensive income (OCI) 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 June 30, 2014, there were twenty-one interest rate cap contracts outstanding with notional amounts totaling $220.0 million. These derivative instruments are not hedged and therefore adjustments to fair value are recorded in current earnings.

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 June 30, 2014, 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 OCI to earnings over the next twelve months.

The fixed rate interest rate swap contract outstanding at June 30, 2014 is being utilized to hedge $35.0 million in floating rate junior subordinated notes. Below is a summary of the interest rate swap contract and the terms at June 30, 2014:

Notional

Effective

Pay

Receive

Maturity

Unrealized

(Dollars in thousands)

Amount

Date

Rate

Rate (*)

Date

Gain

Loss

Cash Flow Hedge

$

20,000

2/10/11

4.18

%

0.24

%

2/10/18

$

—

$

2,151

Cash Flow Hedge

15,000

2/10/11

3.91

%

0.24

%

2/10/18

—

1,467

$

35,000

$

—

$

3,618

*

Variable receive rate based upon contract rates in effect at June 30, 2014.

Recent Accounting and Regulatory Pronouncements

'

Recent Accounting and Regulatory Pronouncements

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 were 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 became effective for the Company January 1, 2014 and did not 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 did not 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.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (a new revenue recognition standard). The Update’s core principle is that a company will recognize revenue to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, this update specifies the accounting for certain costs to obtain or fulfill a contract with a customer and expands disclosure requirements for revenue recognition. This Update is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The Company is evaluating the effect of adopting this new accounting Update.

In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures. The amendments in this Update change the accounting for repurchase-to-maturity transactions to secured borrowing accounting. For repurchase financing arrangements, the amendments require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The amendments also require enhanced disclosures. The accounting changes in this Update are effective for the first interim or annual period beginning after December 15, 2014. An entity is required to present changes in accounting for transactions outstanding on the effective date as a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. Earlier application is prohibited. The disclosure for certain transactions accounted for as a sale is required to be presented for interim and annual periods beginning after December 15, 2014, and the disclosure for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions accounted for as secured borrowings is required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015. The disclosures are not required to be presented for comparative periods before the effective date. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

In June 2014, the FASB issued ASU 2014-12, Compensation-Stock Compensation (Topic 718): Accounting for Share-Based Payments when the Terms of an Award Provide that a Performance Target Could Be Achieved After the Requisite Service Period. The amendments require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. The amendments in this Update are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Earlier adoption is permitted. Entities may apply the amendments in this Update either (a) prospectively to all awards granted or modified after the effective date or (b) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. If retrospective transition is adopted, the cumulative effect of applying this Update as of the beginning of the earliest annual period presented in the financial statements should be recognized as an adjustment to the opening retained earnings balance at that date. Additionally, if retrospective transition is adopted, an entity may use hindsight in measuring and recognizing the compensation cost. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Summary of Interest Rate Swap Contract	'
	Below is a summary of the interest rate swap contract and the terms at June 30, 2014:
			Notional		Effective		Pay			Receive			Maturity		Unrealized
	(Dollars in thousands)		Amount		Date		Rate			Rate (*)			Date		Gain		Loss
	Cash Flow Hedge		$	20,000		2/10/11		4.18	%		0.24	%		2/10/18	$	—	$	2,151
	Cash Flow Hedge			15,000		2/10/11		3.91	%		0.24	%		2/10/18		—		1,467
			$	35,000											$	—	$	3,618
	*	Variable receive rate based upon contract rates in effect at June 30, 2014.

Securities_Available_for_Sale_

Securities Available for Sale (Tables)	6 Months Ended
	Jun. 30, 2014
Investments Debt And Equity Securities [Abstract]	'
Schedule of Securities Available for Sale Portfolio	'
	The Company’s securities available for sale portfolio is summarized as follows:
	(Dollar amounts in thousands)	Amortized			Unrealized		Unrealized			Fair
		cost			gains		losses			value
	June 30, 2014:
	Trust preferred securities	$	45,399		$	331	$	(6,876	)	$	38,854
	Municipal securities		172,249			8,746		(683	)		180,312
	Equity securities - financial institutions		677			776		—			1,453
	Corporate bonds		181,854			4,764		—			186,618
	Mortgage-backed securities
	U.S. sponsored entities		663,756			23,192		(2,403	)		684,545
	Private label		1,547			25		—			1,572
	Subtotal mortgage-backed securities		665,303			23,217		(2,403	)		686,117
	Total securities	$	1,065,482		$	37,834	$	(9,962	)	$	1,093,354
	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 - financial institutions		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
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 June 30, 2014:
	As of June 30, 2014
	(Dollar amounts in thousands)	Less than 12 Months								12 Months or more						Total
		# of			Fair Value		Unrealized			# of		Fair Value		Unrealized		# of		Fair Value		Unrealized
		Securities					losses			Securities				losses		Securities				losses
	Trust preferred securities		—		$	—	$	—			8	$	37,055	$	6,876		8	$	37,055	$	6,876
	Municipal securities		4			3,742		27			18		15,850		656		22		19,592		683
	Mortgage-backed securities
	U.S. sponsored entities		1			3,152		16			41		138,506		2,387		42		141,658		2,403
	Total		5		$	6,894	$	43			67	$	191,411	$	9,919		72	$	198,305	$	9,962
	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:
	As of December 31, 2013
	(Dollar amounts in thousands)	Less than 12 Months								12 Months or more						Total
		# of			Fair Value		Unrealized			# of		Fair Value		Unrealized		# of		Fair Value		Unrealized
		Securities					losses			Securities				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
Scheduled Maturities of Securities	'
	The following table summarizes scheduled maturities of the Company’s securities as of June 30, 2014 and December 31, 2013 excluding equity securities which have no maturity dates:
	As of June 30, 2014
	(Dollar amounts in thousands)	Available for sale
		Weighted			Amortized		Fair
		Average Yield			cost		value
	Due in one year or less		3.74	%	$	39,789	$	40,436
	Due from one year to five years		2.79	%		151,769		156,561
	Due from five to ten years		3.42	%		95,929		99,642
	Due after ten years		3.06	%		777,318		795,262
			3.08	%	$	1,064,805	$	1,091,901
	As of December 31, 2013
	(Dollar amounts in thousands)	Available for sale
		Weighted			Amortized		Fair
		Average Yield			cost		value
	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)	6 Months Ended
	Jun. 30, 2014
Receivables [Abstract]	'
Schedule of Loans Receivable	'
	The Company’s loans receivable as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)	June 30,			December 31,
		2014			2013
	Mortgage loans:
	Residential real estate
	Single family	$	347,223		$	341,775
	Multi family		42,154			37,857
	Construction		40,590			44,327
	Total residential real estate		429,967			423,959
	Commercial real estate
	Commercial		91,310			77,366
	Construction		10,235			25,971
	Total commercial real estate		101,545			103,337
	Subtotal mortgage loans		531,512			527,296
	Other loans:
	Consumer loans
	Home equity loans		84,504			82,987
	Dealer auto and RV loans		49,437			46,502
	Other loans		6,047			6,653
	Total consumer loans		139,988			136,142
	Commercial business		55,071			52,801
	Subtotal other loans		195,059			188,943
	Total loans receivable		726,571			716,239
	Less:
	Allowance for loan losses		6,816			6,805
	Deferred loan fees and net discounts		(2,329	)		(2,007	)
	Loans in process		12,711			15,805
	Subtotal		17,198			20,603
	Net loans receivable	$	709,373		$	695,636
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 for the three and six month periods ended June 30, 2014 and 2013:
	Three months ended June 30, 2014
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	535		$	1,832		$	1,045	$	2,786		$	520		$	6,718
	Charge-offs		—			—			59		26			—			85
	Recoveries		10			—			23		—			—			33
	Provision		(74	)		(96	)		63		384			(127	)		150
	Ending Balance	$	471		$	1,736		$	1,072	$	3,144		$	393		$	6,816
	Three months ended June 30, 2013
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	556		$	2,197		$	1,064	$	2,389		$	515		$	6,721
	Charge-offs		—			7			107		1			2			117
	Recoveries		—			—			49		—			—			49
	Provision		(13	)		(88	)		56		37			83			75
	Ending Balance	$	543		$	2,102		$	1,062	$	2,425		$	596		$	6,728
	Six months ended June 30, 2014
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	523		$	1,723		$	1,054	$	2,996		$	509		$	6,805
	Charge-offs		—			—			171		34			—			205
	Recoveries		103			—			53		—			—			156
	Provision		(155	)		13			136		182			(116	)		60
	Ending Balance	$	471		$	1,736		$	1,072	$	3,144		$	393		$	6,816
	Six months ended June 30, 2013
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	550		$	2,075		$	1,031	$	2,541		$	512		$	6,709
	Charge-offs		—			7			253		11			2			273
	Recoveries		—			—			67		—			—			67
	Provision		(7	)		34			217		(105	)		86			225
	Ending Balance	$	543		$	2,102		$	1,062	$	2,425		$	596		$	6,728
	The following tables present by portfolio segment, the recorded investment in loans at June 30, 2014 and December 31, 2013:
	As of June 30, 2014
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	Allowance for loan losses:
	Ending Balance	$	558		$	1,876		$	1,034	$	2,828		$	520		$	6,816
	Ending balance: individually evaluated for impairment	$	56		$	847		$	47	$	401					$	1,351
	Ending balance: collectively evaluated for impairment	$	415		$	889		$	1,025	$	2,743		$	393		$	5,465
	Loans Receivable:
	Ending Balance	$	55,071		$	101,545		$	139,988	$	429,967		$	—		$	726,571
	Ending balance: individually evaluated for impairment	$	56		$	13,957		$	461	$	2,356		$	—		$	16,830
	Ending balance: collectively evaluated for impairment	$	55,015		$	87,588		$	139,527	$	427,611		$	—		$	709,741
	As of December 31, 2013
	(Dollar amounts in thousands)				Commercial
		Commercial			Real Estate			Consumer		Residential			Unallocated			Total
	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
Schedule of Credit Exposures by Internally Assigned Grades	'
	As of June 30, 2014
	(Dollar amounts in thousands)
		Residential			Residential			Commercial		Commercial			Commercial			Total
		Real Estate			Real Estate			Real Estate		Real Estate
		Multi - family			Construction			Commercial		Construction
	Pass	$	42,154		$	38,256		$	78,056	$	10,235		$	55,032		$	223,733
	Special Mention		—			341			1,222		—			11			1,574
	Substandard		—			1,993			12,032		—			28			14,053
	Doubtful		—			—			—		—			—			—
	Loss		—			—			—		—			—			—
	Ending Balance	$	42,154		$	40,590		$	91,310	$	10,235		$	55,071		$	239,360
	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
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 as of June 30, 2014 and December 31, 2013. 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 June 30, 2014
	(Dollar amounts in thousands)
		Residential Real Estate			Consumer			Dealer		Other			Total
		Single Family			Home Equity			Auto and RV		Consumer
	Performing	$	343,873		$	84,272		$	49,291	$	5,972		$	483,408
	Nonperforming		3,350			232			146		75			3,803
	Total	$	347,223		$	84,504		$	49,437	$	6,047		$	487,211
	As of December 31, 2013
	(Dollar amounts in thousands)
		Residential Real Estate			Consumer			Dealer		Other			Total
		Single Family			Home Equity			Auto and RV		Consumer
	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
Aging Analysis of Investment of Past Due Loans Receivable	'
	The following tables are an aging analysis of the investment of past due loans receivable as of June 30, 2014 and December 31, 2013:
	(Dollar amounts in thousands)																	Recorded
																		Investment >
	As of June 30, 2014																	90 Days and
		30-59 Days			60-89 Days			90 Days		Total Past			Current			Total Loans		Accruing
		Past Due			Past Due			Or Greater		Due						Receivable
	Residential real estate
	Single family	$	633		$	475		$	3,350	$	4,458		$	342,765		$	347,223	$	—
	Construction		—			—			—		—			40,590			40,590		—
	Multi-family		—			—			—		—			42,154			42,154		—
	Commercial Real Estate
	Commercial		105			7			5,023		5,135			86,175			91,310		—
	Construction		—			—			—		—			10,235			10,235		—
	Consumer
	Consumer - home equity		96			28			124		248			84,256			84,504		—
	Consumer - dealer auto and RV		497			138			124		759			48,678			49,437		—
	Consumer - other		37			24			75		136			5,911			6,047		—
	Commercial		—						28		28			55,043			55,071		—
	Total	$	1,368		$	672		$	8,724	$	10,764		$	715,807		$	726,571	$	—
	(Dollar amounts in thousands)																	Recorded
																		Investment >
	As of December 31, 2013																	90 Days and
		30-59 Days			60-89 Days			90 Days		Total Past			Current			Total Loans		Accruing
		Past Due			Past Due			Or Greater		Due						Receivable
	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	$	—
Recorded Investment and Unpaid Principal Balances for Impaired Loans Receivable	'
	The following tables summarize impaired loans:
	Impaired Loans
	As of June 30, 2014 and December 31, 2013
	(Dollar amounts in thousands)
		June 30, 2014								December 31, 2013
		Recorded			Unpaid			Related		Recorded			Unpaid			Related
		Investment			Principal			Allowance		Investment			Principal			Allowance
					Balance								Balance
	With no related allowance recorded:
	Commercial Real Estate	$	2,834		$	2,940		$	—	$	3,139		$	3,246		$	—
	Residential single family		1,380			1,380			—		1,356			1,356			—
	Residential construction		—			—			—		850			850			—
	Consumer loans
	Home Equity		286			289			—		249			253			—
	Dealer auto and RV		24			24			—		6			6			—
	With an allowance recorded:
	Commercial Real Estate	$	11,123		$	11,287		$	847	$	11,246		$	11,409		$	989
	Commercial Business		56			56			56		24			24			24
	Residential Single Family		976			976			401		—			—			—
	Consumer Loans:
	Home Equity		148			148			44		149			149			45
	Dealer auto and RV		3			3			3		3			3			3
	Total:
	Commercial Real Estate		13,957			14,227			847		14,385			14,655			989
	Commercial Business		56			56			56		24			24			24
	Residential single family		2,356			2,356			401		1,356			1,356			—
	Residential construction		—			—			—		850			850			—
	Consumer		461			464			47		407			411			48
	Total	$	16,830		$	17,103		$	1,351	$	17,022		$	17,296		$	1,061
Average Recorded Investment and Interest Income Recognized on Loans	'
	(Dollar amounts in thousands)
		Three months ended						Three months ended
		June 30, 2014						June 30, 2013
		Average			Interest			Average		Interest
		Recorded			Income			Recorded		Income
		Investment			Recognized			Investment		Recognized
	With no related allowance recorded:
	Commercial Real Estate	$	2,978		$	13		$	5,279	$	50
	Commercial business loans		—			—			—		—
	Residential single family		1,364			—			1,358		1
	Residential construction loans		—			—			944		11
	Consumer Loans:
	Home equity		273			3			190		2
	Dealer auto and RV		25			—			10		1
	With an allowance recorded:
	Commercial Real Estate		11,145			113			8,420		134
	Commercial business loans		56			—			—		—
	Residential single family		976			—			—		—
	Residential construction loans		—			—			—		—
	Consumer Loans:
	Home equity		148			3			176		2
	Dealer auto and RV		3			—			4		—
	Total:
	Commercial Real Estate	$	14,123		$	126		$	13,699	$	184
	Commercial business loans		56			—			—		—
	Residential single family		2,340			—			1,358		1
	Residential construction loans		—			—			944		11
	Consumer		449			6			380		5
	(Dollar amounts in thousands)
		Six months ended June 30,						Six months ended June 30,
		2014						2013
		Average			Interest			Average		Interest
		Recorded			Income			Recorded		Income
		Investment			Recognized			Investment		Recognized
	With no related allowance recorded:
	Commercial Real Estate	$	3,025		$	27		$	5,207	$	120
	Commercial business loans		—			—			—		—
	Residential single family		1,360			1			1,359		4
	Residential construction loans		—			—			898		18
	Consumer Loans:
	Home equity		262			7			170		6
	Dealer auto and RV		26			1			11		2
	With an allowance recorded:
	Commercial Real Estate		11,179			226			8,180		258
	Commercial business loans		56			1			—		—
	Residential single family		488			—			—		—
	Residential construction loans		—			—			—		—
	Consumer Loans:
	Home equity		149			4			175		5
	Dealer auto and RV		3			—			4		—
	Total:
	Commercial Real Estate	$	14,204		$	253		$	13,387	$	378
	Commercial business loans		56			1			—		—
	Residential single family		1,848			1			1,359		4
	Residential construction loans		—			—			898		18
	Consumer		440			12			360		13
Schedule of Loans Receivable on Nonaccrual Status	'
	On the following table are the loans receivable on nonaccrual status as of June 30, 2014 and December 31, 2013. The balances are presented by class of loans:
	(Dollar amounts in thousands)	June 30,			December 31,
		2014			2013
	Commercial	$	28		$	30
	Commercial Real Estate		5,023			4,787
	Residential		3,350			3,405
	Consumer
	Consumer - Home Equity		124			214
	Consumer - Dealer auto and RV		124			136
	Consumer - other		75			65
	Total	$	8,724		$	8,637
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 June 30, 2014 and December 31, 2013. 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.
	(Dollar amounts in thousands)
		For the Three Months ended
		June 30, 2014
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
	Troubled Debt Restructurings
	Consumer
	Home equity		1		$	46		$	46	$	—		$	—		$	46
	Troubled Debt Restructurings		1		$	46		$	46	$	—		$	—		$	46
	(Dollar amounts in thousands)
		For the Three Months ended
		June 30, 2013
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
	Troubled Debt Restructurings
	Commercial real estate		11		$	2,288		$	26	$	—		$	2,262		$	2,288
	Consumer
	Home equity		3			15			15		—			—			15
	Troubled Debt Restructurings		14		$	2,303		$	41	$	—		$	2,262		$	2,303
	(Dollar amounts in thousands)
		For the Six Months ended
		June 30, 2014
					Pre-Modification			Post-Modification Recorded Investment
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
	Troubled Debt Restructurings
	Commercial		1		$	57		$	—	$	—		$	57		$	57
	Consumer
	Home equity		2			57			46					11			57
	Dealer auto and RV		2			24			7		—			17			24
	Troubled Debt Restructurings		5		$	138		$	53	$	—		$	85		$	138
	(Dollar amounts in thousands)
		For the Six Months ended
		June 30, 2013
								Post-Modification Recorded Investment
					Pre-Modification
					Outstanding
		Number of			Recorded			Maturity Date		Deferral of
		Contracts			Investment			Extension		Principal Payments			Other			Total
	Troubled Debt Restructurings
	Commercial real estate		12		$	2,331		$	26	$	—		$	2,305		$	2,331
	Consumer
	Home equity		6			91			91		—			—			91
	Troubled Debt Restructurings		18		$	2,422		$	117	$	—		$	2,305		$	2,422
	The Company did not have any TDRs that defaulted subsequent to their modification during the periods reported.

Deposits_Tables

Deposits (Tables)	6 Months Ended
	Jun. 30, 2014
Banking And Thrift [Abstract]	'
Summary of Deposits	'
	The Company’s deposits as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)	June 30, 2014					December 31, 2013
	Type of accounts	Amount		%			Amount		%
	Noninterest-bearing deposits	$	124,390		9.6	%	$	124,777		10.2	%
	NOW account deposits		302,677		23.3	%		234,163		19.2	%
	Money Market deposits		42,240		3.2	%		39,688		3.2	%
	Passbook account deposits		184,085		14.2	%		178,412		14.6	%
	Time deposits		646,771		49.7	%		645,727		52.8	%
		$	1,300,163		100	%	$	1,222,767		100	%
Schedule of Time Deposits Maturity	'
	The Company’s time deposits mature as follows:
	(Dollar amounts in thousands)	June 30, 2014					December 31, 2013
		Amount		%			Amount		%
	Within one year	$	456,259		70.6	%	$	437,731		67.8	%
	After one year through two years		99,597		15.4	%		115,976		18	%
	After two years through three years		67,773		10.5	%		60,045		9.3	%
	After three years through four years		12,897		2	%		16,393		2.5	%
	After four years through five years		6,130		0.9	%		10,871		1.7	%
	Thereafter		4,115		0.6	%		4,711		0.7	%
		$	646,771		100	%	$	645,727		100	%

Borrowed_Funds_Tables

Borrowed Funds (Tables)	6 Months Ended
	Jun. 30, 2014
Debt Disclosure [Abstract]	'
Summary of Borrowed Funds	'
	The Company’s borrowed funds as of the respective dates are summarized as follows:
	(Dollar amounts in thousands)	June 30, 2014					December 31, 2013
		Weighted					Weighted
		average					average
		rate			Amount		rate			Amount
	FHLB advances:
	Due within 12 months		1.95	%	$	57,180		2.12	%	$	101,492
	Due beyond 12 months but within 2 years		0.95	%		60,075		2.14	%		25,873
	Due beyond 2 years but within 3 years		1.11	%		85,466		0.99	%		78,008
	Due beyond 3 years but within 4 years		1.6	%		44,375		1.34	%		73,380
	Due beyond 4 years but within 5 years		3.21	%		12,628		3.26	%		12,168
					$	259,724				$	290,921
	Repurchase agreements:
	Due within 12 months		2.24	%	$	38,000		2.34	%	$	58,000
	Due beyond 12 months but within 2 years		—			—		4.12	%		10,000
	Due beyond 2 years but within 3 years		4.28	%		25,000		—			—
	Due beyond 3 years but within 4 years		3.9	%		10,000		4.28	%		25,000
	Due beyond 4 years but within 5 years		4.66	%		35,000		4.49	%		45,000
					$	108,000				$	138,000
	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	%		750		4.68	%		1,000
	Due beyond 2 years but within 3 years		—			—		4.68	%		250
					$	1,750				$	2,250
	Corporate borrowings
	Due within 12 months		3.75	%	$	1,000		3.75	%	$	1,000
	Due beyond 12 months but within 2 years		3.75	%		1,000		3.75	%		1,000
	Due beyond 2 years but within 3 years		3.75	%		1,000		3.75	%		1,000
	Due beyond 3 years but within 4 years		3.75	%		5,972		3.75	%		1,000
	Due beyond 4 years but within 5 years		—			—		3.75	%		5,973
					$	8,972				$	9,973
	Junior subordinated notes
	Due beyond 5 years		2.04	%	$	36,083		2.06	%	$	36,083

Net_Income_Per_Share_Tables

Net Income Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Summary of Net Income Per Share	'
	The following table summarizes the Company’s net income per share:
	(Amounts, except earnings per share, in thousands)
		Three Months		Three Months
		Ended		Ended
		June 30, 2014		June 30, 2013
	Net income	$	4,700	$	3,876
	Weighted-average common shares outstanding		17,579		17,353
	Basic earnings per share	$	0.27	$	0.22
	Weighted-average common shares outstanding		17,579		17,353
	Common stock equivalents due to effect of stock options		195		169
	Total weighted-average common shares and equivalents		17,774		17,522
	Diluted earnings per share	$	0.26	$	0.22
		Six Months		Six Months
		Ended		Ended
		30-Jun-14		30-Jun-13
	Net income	$	9,040	$	7,590
	Weighted-average common shares outstanding		17,558		17,333
	Basic earnings per share	$	0.51	$	0.44
	Weighted-average common shares outstanding		17,558		17,333
	Common stock equivalents due to effect of stock options		209		161
	Total weighted-average common shares and equivalents		17,767		17,494
	Diluted earnings per share	$	0.51	$	0.43

Comprehensive_Income_Tables

Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Summary of Amounts Recognized in Other Comprehensive Income Loss	'
	The Company has developed the following table to present the components of accumulated OCI for the three and six month periods ended June 30, 2014 and 2013:
	(Dollar amounts in thousands)
		Three Months Ended			Three Months Ended
		June 30, 2014			June 30, 2013			Affected line item
	Details about AOCI Components	Amount			Amount			in the Statement where net
		Reclassifed from AOCI			Reclassifed from AOCI			income is presented
	Available-for-sale securities
	Realized gain on sale of securities	$	—		$	(198	)	Net realized gain on securities available for sale
	Impairment expense		—			—		Net impairment losses on investment securities
			—			(198	)	Total before tax
			—			67		Provision for income taxes
			—			(131	)	Net of tax
	Defined benefit pension plan items
	Amortization of prior service costs		23			26		See Note 1 below
	Amortization of actuarial gains/(losses)		10			10		See Note 1 below
			33			36		Total before tax
			(11	)		(12	)	Provision for income taxes
			22			24		Net of tax
	Total reclassifications	$	22		$	(107	)	Net of tax
		Six Months Ended			Six Months Ended
		30-Jun-14			30-Jun-13			Affected line item
	Details about AOCI Components	Amount			Amount			in the Statement where net
		Reclassifed from AOCI			Reclassifed from AOCI			income is presented
	Available-for-sale securities
	Realized gain on sale of securities	$	(288	)	$	(467	)	Net realized gain on securities available for sale
	Impairment expense		193			—		Net impairment losses on investment securities
			(95	)		(467	)	Total before tax
			32			159		Provision for income taxes
			(63	)		(308	)	Net of tax
	Defined benefit pension plan items
	Amortization of prior service costs		47			53		See Note 1 below
	Amortization of actuarial gains/(losses)		20			20		See Note 1 below
			67			73		Total before tax
			(23	)		(25	)	Provision for income taxes
			44			48		Net of tax
	Total reclassifications	$	(19	)	$	(260	)	Net of tax
Summary of Comprehensive Income Loss	'
	(Dollar amounts in thousands)
		Three Months ended June 30, 2014
		Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
		Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance	$	(2,417	)	$	12,719		$	(455	)	$	9,847
	Other comprehensive income/(loss) before reclassification		29			5,675			—			5,704
	Amounts reclassified from AOCI		—			—			22			22
	Net current period OCI		29			5,675			22			5,726
	Ending Balance	$	(2,388	)	$	18,394		$	(433	)	$	15,573
	(Dollar amounts in thousands)
		Three Months ended June 30, 2013
		Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
		Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance	$	(3,556	)	$	27,327		$	(604	)	$	23,167
	Other comprehensive income/(loss) before reclassification		726			(14,199	)		—			(13,473	)
	Amounts reclassified from AOCI		—			(131	)		24			(107	)
	Net current period OCI		726			(14,330	)		24			(13,580	)
	Ending Balance	$	(2,830	)	$	12,997		$	(580	)	$	9,587
	(Dollar amounts in thousands)
		Six Months ended June 30, 2014
		Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
		Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance	$	(2,515	)	$	7,608		$	(478	)	$	4,615
	Other comprehensive income/(loss) before reclassification		127			10,850			—			10,977
	Amounts reclassified from AOCI		—			(63	)		44			(19	)
	Net current period OCI		127			10,787			44			10,958
	Ending Balance	$	(2,388	)	$	18,395		$	(434	)	$	15,573
	(Dollar amounts in thousands)
		Six Months ended June 30, 2013
		Gains/(losses) on			Unrealized gains/(losses) on			Defined benefit pension
		Cash Flow Hedges			available-for-sale securities			plan items			Total
	Beginning balance	$	(3,733	)	$	29,464		$	(628	)	$	25,103
	Other comprehensive income/(loss) before reclassification		904			(16,160	)		—			(15,256	)
	Amounts reclassified from AOCI		—			(308	)		48			(260	)
	Net current period OCI		904			(16,468	)		48			(15,516	)
	Ending Balance	$	(2,829	)	$	12,996		$	(580	)	$	9,587

Retirement_Plans_Tables

Retirement Plans (Tables)	6 Months Ended
	Jun. 30, 2014
Compensation And Retirement Disclosure [Abstract]	'
Schedule of Net Periodic Pension Cost for Retirement Plan	'
	The following table illustrates the components of the net periodic pension cost for the SERP and Directors Retirement Plan as of June 30, 2014 and 2013:
	(Dollar amounts in thousands)	SERP				SERP
		Three Months		Three Months		Six Months		Six Months
		Ended		Ended		Ended		Ended
		June 30, 2014		June 30, 2013		June 30, 2014		June 30, 2013
	Components of net periodic pension cost
	Service cost	$	22	$	25	$	44	$	50
	Interest cost		36		28		72		56
	Amortization of prior service cost		22		26		44		52
	Amortization of unrecognized gains and losses		10		10		20		20
	Net periodic pension cost	$	90	$	89	$	180	$	178
	(Dollar amounts in thousands)	Directors’ Retirement Plan				Directors’ Retirement Plan
		Three Months		Three Months		Six Months		Six Months
		Ended		Ended		Ended		Ended
		30-Jun-14		30-Jun-13		30-Jun-14		30-Jun-13
	Components of net periodic pension cost
	Service cost	$	2	$	1	$	4	$	2
	Interest cost		9		7		18		14
	Net periodic pension cost	$	11	$	8	$	22	$	16

Fair_Value_Tables

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2014
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 June 30, 2014 and December 31, 2013 by level within the fair value hierarchy. As required by GAAP, 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 June 30, 2014
	(Dollar amounts in thousands)		Quoted Prices			Significant Other		Significant			Total
			in Active			Observable		Unobservable
			Markets for			Inputs		Inputs
			Identical Assets			(Level II)		(Level III)
			or Liabilities
			(Level I)
	Assets:
	Securities available for sale
	Trust preferred securities		$	—		$	1,799	$	37,055		$	38,854
	Municipal securities			—			180,312		—			180,312
	Equity securities			1,453			—		—			1,453
	Corporate bonds			—			186,618		—			186,618
	Mortgage backed securities
	U.S. sponsored entities			—			684,545		—			684,545
	Private label			—			1,572		—			1,572
	Subtotal mortgage-backed securities			—			686,117		—			686,117
	Total securities available for sale		$	1,453		$	1,054,846	$	37,055		$	1,093,354
	Other Assets
	Interest rate caps		$	—		$	462	$	—		$	462
	Total other assets		$	—		$	462	$	—		$	462
	Liabilities
	Other Liabilities
	Interest rate swaps		$	—		$	3,618	$	—		$	3,618
	Total other liabilities		$	—		$	3,618	$	—		$	3,618
			As of December 31, 2013
	(Dollar amounts in thousands)		Quoted Prices			Significant Other		Significant			Total
			in Active			Observable		Unobservable
			Markets for			Inputs		Inputs
			Identical Assets			(Level II)		(Level III)
			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 Liabilities
	Interest rate swaps		$	—		$	3,870	$	—		$	3,870
	Total other liabilities		$	—		$	3,870	$	—		$	3,870
Fair Value Measurements Using Significant Unobservable Inputs (Level III)	'
	The following table presents the changes in the Level III assets measured at fair value on a recurring basis for the three and six month periods ended June 30, 2014 and 2013.
	Fair value measurements using significant unobservable inputs (Level III).
			Securities available for sale					Securities available for sale
			Three months ended					Six months ended
			June 30,					June 30,
			2014			2013		2014			2013
	Beginning balance January 1,		$	37,146		$	36,353	$	37,209		$	36,179
	Total net realized/unrealized gains (losses)
	Included in earnings:
	Interest income on securities			4			4		7			7
	Net realized loss on securities available for sale			—			—		(193	)		—
	Included in other comprehensive income			(95	)		577		32			748
	Transfers in and/or out of Level III			—			—		—			—
	Purchases, issuances and settlements
	Purchases			—			—		—			—
	Issuances			—			—		—			—
	Sales			—			—		—			—
	Settlements			—			—		—			—
	Ending balance, June 30,		$	37,055		$	36,934	$	37,055		$	36,934
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 three and six month period ended June 30, 2014 and 2013 for Level III assets and liabilities that are still held at June 30, 2014 and 2013.
			Securities available for sale					Securities available for sale
			Three months ended					Six months ended
			June 30,					June 30,
			2014			2013		2014			2013
	Interest income on securities		$	4		$	4	$	7		$	7
	Net realized loss on securities available for sale			—			—		(193	)		—
	Total		$	4		$	4	$	(186	)	$	7
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 June 30, 2014, 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 Unobservable	2014 Range		2013 Range
			June 30, 2014			December 31,		Technique		Inputs	(Weighted Average)		(Weighted Average)
						2013
	Trust Preferred Securities		$	37,055		$	37,209	Discounted Cash Flow		Credit Spreads	35-65 (52.5) basis points		40-75 (62.5) basis points
										Liquidity Risk Adjustments	20-55 (36) basis points		20-55 (36) basis points
										Default Rates	.6%-1%		.6%-1%
	Impaired Loans			15,479			15,961	Appraisal of collateral (1)		Appraisal value and liquidation expense	2.84%-48.93%(9.91%)		2.84%-48.93%(9.95%)
	Real estate acquired through foreclosure			2,141			1,977	Appraisal of collateral (1)		N/A	N/A		N/A
	Servicing assets			5			9	Discounted Cash Flow		Remaining term	.75 yrs to 16.40 yrs (12 yrs)		1 yrs to 16.65 yrs (12.5 yrs)
										Discount Rate	11.25%-12.25% (11.36%)		11.25%-12.25%(11.36%)
	-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)	6 Months Ended
	Jun. 30, 2014
Investments All Other Investments [Abstract]	'
Carrying Amount and Fair Value of the Company's Financial Instruments	'
	The following tables set forth the carrying amount and fair value of the Company’s financial instruments included in the consolidated statement of financial condition as of June 30, 2014 and December 31, 2013:
	June 30, 2014
	(Dollar amounts in thousands)	Carrying		Quoted Prices		Significant		Significant		Total Fair
		Value		in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical		Inputs		(Level III)
				Assets or		(Level II)
				Liabilities
				(Level I)
	Financial Assets:
	Cash and Cash Equivalents	$	14,868	$	14,868	$	—	$	—	$	14,868
	Securities		1,093,354		1,453		1,054,846		37,055		1,093,354
	Securities Receivable		2,380		2,380		—		—		2,380
	Loans receivable and held for sale		709,373		—		—		732,778		732,778
	Accrued Interest Receivable		7,342		7,342		—		—		7,342
	FHLB Stock		14,115		14,115		—		—		14,115
	Bank owned life insurance		30,235		30,235		—		—		30,235
	Interest rate cap contracts		462		—		462		—		462
	Financial Liabilities:
	Deposits		1,300,163		653,392		—		652,407		1,305,799
	Borrowed funds		378,446		—		119,727		270,675		390,402
	Junior subordinated notes		36,083		—		27,062		—		27,062
	Advance payments by borrowers for taxes and insurance		3,515		3,515		—		—		3,515
	Accrued interest payable		2,048		2,048		—		—		2,048
	Interest rate swap contracts		3,618		—		3,618		—		3,618
	December 31, 2013
	(Dollar amounts in thousands)	Carrying		Quoted Prices		Significant		Significant		Total Fair
		Value		in Active		Other		Unobservable		Value
				Markets for		Observable		Inputs
				Identical		Inputs		(Level III)
				Assets or		(Level II)
				Liabilities
				(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 and held for sale		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 payments 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

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2012
	Contract		Segment	Office	Office
	Office		Residential
			Contract
			Office
			Branches
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 real estate joint ventures currently involved	'	'	9	'	'
Number of full service banking branches	'	'	23	23	23
Number of loan production offices	1	'	1	'	'
Number of operating segment	'	'	1	'	'
Stock-based compensation expense	$235,000	$185,000	$463,000	$357,000	'
Tax benefit from compensation expense	33,000	19,000	55,000	38,000	'
Unrecognized compensation cost	992,000	'	992,000	'	'
Share based compensation expense recognized, years	'	'	'4 years	'	'
Interest rate cap contracts outstanding	21	'	21	'	'
Interest payment in junior subordinated notes	35,000,000	'	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	'	0	'	'
Interest Rate Swaps [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Interest payment in junior subordinated notes	35,000,000	'	35,000,000	'	'
Interest Rate Caps [Member]	'	'	'	'	'
Summary Of Significant Accounting Policies [Line Items]	'	'	'	'	'
Interest payment in junior subordinated notes	$220,000,000	'	$220,000,000	'	'
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 $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014
Derivative [Line Items]	'
Notional Amount	$35,000
Unrealized Gain	'
Unrealized Loss	3,618
4.18 % Cash Flow Hedge [Member]	'
Derivative [Line Items]	'
Notional Amount	20,000
Effective Date	10-Feb-11
Pay Rate	4.18%
Receive Rate	0.24%
Maturity Date	10-Feb-18
Unrealized Gain	'
Unrealized Loss	2,151
3.91 % Cash Flow Hedge [Member]	'
Derivative [Line Items]	'
Notional Amount	15,000
Effective Date	10-Feb-11
Pay Rate	3.91%
Receive Rate	0.24%
Maturity Date	10-Feb-18
Unrealized Gain	'
Unrealized Loss	$1,467

Securities_Available_for_Sale_1

Securities Available for Sale - Schedule of Securities Available for Sale Portfolio (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$1,065,482	$1,051,311
Unrealized gains	37,834	30,234
Unrealized losses	-9,962	-18,529
Fair value	1,093,354	1,063,016
Trust Preferred Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	45,399	45,589
Unrealized gains	331	225
Unrealized losses	-6,876	-6,908
Fair value	38,854	38,906
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	172,249	178,579
Unrealized gains	8,746	5,310
Unrealized losses	-683	-4,149
Fair value	180,312	179,740
Equity Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	677	953
Unrealized gains	776	968
Unrealized losses	'	'
Fair value	1,453	1,921
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	181,854	201,268
Unrealized gains	4,764	5,313
Unrealized losses	'	-361
Fair value	186,618	206,220
U.S. Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	663,756	623,134
Unrealized gains	23,192	18,397
Unrealized losses	-2,403	-7,107
Fair value	684,545	634,424
Private Label [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,547	1,788
Unrealized gains	25	21
Unrealized losses	'	-4
Fair value	1,572	1,805
Subtotal Mortgage-Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	665,303	624,922
Unrealized gains	23,217	18,418
Unrealized losses	-2,403	-7,111
Fair value	$686,117	$636,229

Securities_Available_for_Sale_2

Securities Available for Sale - Schedule of Investments Gross Unrealized Losses and Fair Value (Detail) (USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
	Security	Security
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	5	120
Less than 12 Months, Fair Value	$6,894	$287,837
Less than 12 Months, Unrealized losses	43	9,605
12 Months or more, # of Securities	67	21
12 Months or more, Fair Value	191,411	70,886
12 Months or more, Unrealized losses	9,919	8,924
Total, # of Securities	72	141
Total, Fair Value	198,305	358,723
Total, Unrealized losses	9,962	18,529
Trust Preferred Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	'	'
Less than 12 Months, Fair Value	'	'
Less than 12 Months, Unrealized losses	'	'
12 Months or more, # of Securities	8	8
12 Months or more, Fair Value	37,055	37,016
12 Months or more, Unrealized losses	6,876	6,908
Total, # of Securities	8	8
Total, Fair Value	37,055	37,016
Total, Unrealized losses	6,876	6,908
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	4	44
Less than 12 Months, Fair Value	3,742	37,243
Less than 12 Months, Unrealized losses	27	3,129
12 Months or more, # of Securities	18	6
12 Months or more, Fair Value	15,850	5,518
12 Months or more, Unrealized losses	656	1,020
Total, # of Securities	22	50
Total, Fair Value	19,592	42,761
Total, Unrealized losses	683	4,149
Corporate Bonds [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	'	6
Less than 12 Months, Fair Value	'	20,869
Less than 12 Months, Unrealized losses	'	109
12 Months or more, # of Securities	'	3
12 Months or more, Fair Value	'	11,474
12 Months or more, Unrealized losses	'	252
Total, # of Securities	'	9
Total, Fair Value	'	32,343
Total, Unrealized losses	'	361
U.S. Sponsored Entities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 Months, # of Securities	1	69
Less than 12 Months, Fair Value	3,152	229,223
Less than 12 Months, Unrealized losses	16	6,363
12 Months or more, # of Securities	41	4
12 Months or more, Fair Value	138,506	16,878
12 Months or more, Unrealized losses	2,387	744
Total, # of Securities	42	73
Total, Fair Value	141,658	246,101
Total, Unrealized losses	2,403	7,107
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
12 Months or more, # of Securities	'	'
12 Months or more, Fair Value	'	'
12 Months or more, Unrealized losses	'	'
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

Securities_Available_for_Sale_3

Securities Available for Sale - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Company recorded impairment charges	'	'	$193,000	'
Additional credit impairment	0	'	0	'
Proceeds from the sale of securities	'	'	563,000	1,800,000
Gross realized gains from sale of securities	'	198,000	288,000	467,000
Gross realized losses	'	'	0	0
Credit-related Securities [Member]	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Company recorded impairment charges	'	'	193,000	'
Noncredit Related Securities [Member]	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Company recorded impairment charges	'	'	0	'
Trust Preferred Securities [Member]	'	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'	'
Company recorded impairment charges	'	'	2,300,000	'
Preferred security, remaining book value	$0	'	$0	'

Securities_Available_for_Sale_4

Securities Available for Sale - Scheduled Maturities of Securities (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available For Sale Securities Debt Maturities [Abstract]	'	'
Weighted Average Yield, Due in one year or less	3.74%	2.79%
Weighted Average Yield, Due from one year to five years	2.79%	2.97%
Weighted Average Yield, Due from five to ten years	3.42%	3.37%
Weighted Average Yield, Due after ten years	3.06%	3.14%
Weighted Average Yield, Total	3.08%	3.12%
Amortized cost, Due in one year or less	$39,789	$41,074
Amortized cost, Due from one year to five years	151,769	163,785
Amortized cost, Due from five to ten years	95,929	106,115
Amortized cost, Due after ten years	777,318	739,384
Amortized cost, Total	1,064,805	1,050,358
Fair value, Due in one year or less	40,436	41,497
Fair value, Due from one year to five years	156,561	169,767
Fair value, Due from five to ten years	99,642	107,917
Fair value, Due after ten years	795,262	741,914
Fair value, Total	$1,091,901	$1,061,095

Loans_Receivable_Schedule_of_L

Loans Receivable - Schedule of Loans Receivable (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	$429,967	$423,959
Total commercial real estate	101,545	103,337
Subtotal mortgage loans	531,512	527,296
Total consumer loans	139,988	136,142
Commercial business	55,071	52,801
Subtotal other loans	195,059	188,943
Total loans receivable	726,571	716,239
Allowance for loan losses	6,816	6,805
Deferred loan fees and net discounts	-2,329	-2,007
Loans in process	12,711	15,805
Subtotal	17,198	20,603
Net loans receivable	709,373	695,636
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	347,223	341,775
Total loans receivable	347,223	341,775
Residential Real Estate, Multi-Family [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	42,154	37,857
Total loans receivable	42,154	37,857
Residential Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total residential real estate	40,590	44,327
Total loans receivable	40,590	44,327
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total commercial real estate	91,310	77,366
Total loans receivable	101,545	103,337
Commercial Real Estate, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total commercial real estate	10,235	25,971
Total loans receivable	10,235	25,971
Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	84,504	82,987
Total loans receivable	84,504	82,987
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	49,437	46,502
Total loans receivable	49,437	46,502
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total consumer loans	6,047	6,653
Total loans receivable	$6,047	$6,653

Loans_Receivable_Additional_In

Loans Receivable - Additional Information (Detail) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2012	Dec. 31, 2013
	Office	Office	Office
Receivables [Abstract]	'	'	'	'
Number of offices of company	23	23	23	'
Historical loss calculation period	'3 years	'	'	'
Allowance for loan losses	$6,816,000	'	'	$6,805,000
Borrowers sustained repayment period	'6 months	'	'	'
Non-performing loans, including non-accrual loans and TDRs	8,724,000	'	'	8,637,000
Troubled debt restructuring (TDRs)	186,000	'	'	368,000
TDR with modified terms	$9,300,000	'	'	$8,200,000
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 delinquent	'	'	'

Loans_Receivable_Changes_in_Al

Loans Receivable - Changes in Allowance for Loan Losses and Recorded Investment in Loans (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	$6,718	$6,721	$6,805	$6,709	'
Charge-offs	85	117	205	273	'
Recoveries	33	49	156	67	'
Provision	150	75	60	225	'
Ending Balance	6,816	6,728	6,816	6,728	'
Ending balance: individually evaluated for impairment	1,351	'	1,351	'	1,061
Ending balance: collectively evaluated for impairment	5,465	'	5,465	'	5,744
Loans Receivable:	'	'	'	'	'
Ending Balance	6,816	6,728	6,816	6,728	'
Ending balance: individually evaluated for impairment	1,351	'	1,351	'	1,061
Ending balance: collectively evaluated for impairment	5,465	'	5,465	'	5,744
Ending Balance	726,571	'	726,571	'	716,239
Ending balance: individually evaluated for impairment	16,830	'	16,830	'	17,022
Ending balance: collectively evaluated for impairment	709,741	'	709,741	'	699,217
Commercial [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	535	556	523	550	'
Charge-offs	'	'	'	'	'
Recoveries	10	'	103	'	'
Provision	-74	-13	-155	-7	'
Ending Balance	471	543	471	543	'
Ending balance: individually evaluated for impairment	56	'	56	'	24
Ending balance: collectively evaluated for impairment	415	'	415	'	499
Loans Receivable:	'	'	'	'	'
Ending Balance	471	543	471	543	'
Ending balance: individually evaluated for impairment	56	'	56	'	24
Ending balance: collectively evaluated for impairment	415	'	415	'	499
Ending Balance	55,071	'	55,071	'	52,801
Ending balance: individually evaluated for impairment	56	'	56	'	24
Ending balance: collectively evaluated for impairment	55,015	'	55,015	'	52,777
Commercial Real Estate [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	1,832	2,197	1,723	2,075	'
Charge-offs	'	7	'	7	'
Recoveries	'	'	'	'	'
Provision	-96	-88	13	34	'
Ending Balance	1,736	2,102	1,736	2,102	'
Ending balance: individually evaluated for impairment	847	'	847	'	989
Ending balance: collectively evaluated for impairment	889	'	889	'	734
Loans Receivable:	'	'	'	'	'
Ending Balance	1,736	2,102	1,736	2,102	'
Ending balance: individually evaluated for impairment	847	'	847	'	989
Ending balance: collectively evaluated for impairment	889	'	889	'	734
Ending Balance	101,545	'	101,545	'	103,337
Ending balance: individually evaluated for impairment	13,957	'	13,957	'	14,385
Ending balance: collectively evaluated for impairment	87,588	'	87,588	'	88,952
Consumer [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	1,045	1,064	1,054	1,031	'
Charge-offs	59	107	171	253	'
Recoveries	23	49	53	67	'
Provision	63	56	136	217	'
Ending Balance	1,072	1,062	1,072	1,062	'
Ending balance: individually evaluated for impairment	47	'	47	'	48
Ending balance: collectively evaluated for impairment	1,025	'	1,025	'	1,006
Loans Receivable:	'	'	'	'	'
Ending Balance	1,072	1,062	1,072	1,062	'
Ending balance: individually evaluated for impairment	47	'	47	'	48
Ending balance: collectively evaluated for impairment	1,025	'	1,025	'	1,006
Ending Balance	139,988	'	139,988	'	136,142
Ending balance: individually evaluated for impairment	461	'	461	'	407
Ending balance: collectively evaluated for impairment	139,527	'	139,527	'	135,735
Residential [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	2,786	2,389	2,996	2,541	'
Charge-offs	26	1	34	11	'
Recoveries	'	'	'	'	'
Provision	384	37	182	-105	'
Ending Balance	3,144	2,425	3,144	2,425	'
Ending balance: individually evaluated for impairment	401	'	401	'	'
Ending balance: collectively evaluated for impairment	2,743	'	2,743	'	2,996
Loans Receivable:	'	'	'	'	'
Ending Balance	3,144	2,425	3,144	2,425	'
Ending balance: individually evaluated for impairment	401	'	401	'	'
Ending balance: collectively evaluated for impairment	2,743	'	2,743	'	2,996
Ending Balance	429,967	'	429,967	'	423,959
Ending balance: individually evaluated for impairment	2,356	'	2,356	'	2,206
Ending balance: collectively evaluated for impairment	427,611	'	427,611	'	421,753
Unallocated [Member]	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'	'
Beginning balance	520	515	509	512	'
Charge-offs	'	2	'	2	'
Recoveries	'	'	'	'	'
Provision	-127	83	-116	86	'
Ending Balance	393	596	393	596	'
Ending balance: individually evaluated for impairment	'	'	'	'	'
Ending balance: collectively evaluated for impairment	393	'	393	'	509
Loans Receivable:	'	'	'	'	'
Ending Balance	393	596	393	596	'
Ending balance: individually evaluated for impairment	'	'	'	'	'
Ending balance: collectively evaluated for impairment	393	'	393	'	509
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 $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$239,360	$238,322
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	223,733	220,964
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	1,574	1,682
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	14,053	15,676
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	42,154	37,857
Residential Real Estate, Multi-Family [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	42,154	37,857
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	40,590	44,327
Residential Real Estate, Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	38,256	40,874
Residential Real Estate, Construction [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	341	382
Residential Real Estate, Construction [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	1,993	3,071
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	91,310	77,366
Commercial Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	78,056	63,532
Commercial Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	1,222	1,283
Commercial Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	12,032	12,551
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	10,235	25,971
Commercial Real Estate, Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	10,235	25,971
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	55,071	52,801
Commercial [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	55,032	52,730
Commercial [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	11	17
Commercial [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	28	54
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 $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$726,571	$716,239
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	347,223	341,775
Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	84,504	82,987
Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	49,437	46,502
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	6,047	6,653
Single Family Residential and Consumer Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	487,211	477,917
Single Family Residential and Consumer Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	483,408	474,014
Single Family Residential and Consumer Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	3,803	3,903
Single Family Residential and Consumer Loans [Member] | Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	347,223	341,775
Single Family Residential and Consumer Loans [Member] | Residential Real Estate, Single Family [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	343,873	338,370
Single Family Residential and Consumer Loans [Member] | Residential Real Estate, Single Family [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	3,350	3,405
Single Family Residential and Consumer Loans [Member] | Consumer Home Equity [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	84,504	82,987
Single Family Residential and Consumer Loans [Member] | Consumer Home Equity [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	84,272	82,692
Single Family Residential and Consumer Loans [Member] | Consumer Home Equity [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	232	295
Single Family Residential and Consumer Loans [Member] | Consumer Dealer Auto and RV Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	49,437	46,502
Single Family Residential and Consumer Loans [Member] | Consumer Dealer Auto and RV Loans [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	49,291	46,364
Single Family Residential and Consumer Loans [Member] | Consumer Dealer Auto and RV Loans [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	146	138
Single Family Residential and Consumer Loans [Member] | Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	6,047	6,653
Single Family Residential and Consumer Loans [Member] | Consumer Other [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	5,972	6,588
Single Family Residential and Consumer Loans [Member] | Consumer Other [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable	$75	$65

Loans_Receivable_Aging_Analysi

Loans Receivable - Aging Analysis of Investment of Past Due Loans Receivable (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$1,368	$1,902
60-89 Days Past Due	672	598
90 Days Or Greater	8,724	8,637
Total Past Due	10,764	11,137
Current	715,807	705,102
Total loans receivable	726,571	716,239
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	633	653
60-89 Days Past Due	475	319
90 Days Or Greater	3,350	3,405
Total Past Due	4,458	4,377
Current	342,765	337,398
Total loans receivable	347,223	341,775
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	40,590	44,327
Total loans receivable	40,590	44,327
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	42,154	37,857
Total loans receivable	42,154	37,857
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	105	53
60-89 Days Past Due	7	65
90 Days Or Greater	5,023	4,787
Total Past Due	5,135	4,905
Current	86,175	72,461
Total loans receivable	91,310	77,366
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	10,235	25,971
Total loans receivable	10,235	25,971
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	96	156
60-89 Days Past Due	28	65
90 Days Or Greater	124	214
Total Past Due	248	435
Current	84,256	82,552
Total loans receivable	84,504	82,987
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	497	993
60-89 Days Past Due	138	106
90 Days Or Greater	124	136
Total Past Due	759	1,235
Current	48,678	45,267
Total loans receivable	49,437	46,502
Recorded Investment greater than 90 Days and Accruing	'	'
Consumer Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	37	47
60-89 Days Past Due	24	43
90 Days Or Greater	75	65
Total Past Due	136	155
Current	5,911	6,498
Total loans receivable	6,047	6,653
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	'	'
90 Days Or Greater	28	30
Total Past Due	28	30
Current	55,043	52,771
Total loans receivable	55,071	52,801
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 $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	$16,830	$17,022
Unpaid Principal Balance	17,103	17,296
Related Allowance	1,351	1,061
Commercial Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	13,957	14,385
Unpaid Principal Balance	14,227	14,655
Related Allowance	847	989
Commercial Real Estate [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	2,834	3,139
Unpaid Principal Balance	2,940	3,246
Related Allowance	'	'
Commercial Real Estate [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	11,123	11,246
Unpaid Principal Balance	11,287	11,409
Related Allowance	847	989
Residential Real Estate, Single Family [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	2,356	1,356
Unpaid Principal Balance	2,356	1,356
Related Allowance	401	'
Residential Real Estate, Single Family [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	1,380	1,356
Unpaid Principal Balance	1,380	1,356
Related Allowance	'	'
Residential Real Estate, Single Family [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	976	'
Unpaid Principal Balance	976	'
Related Allowance	401	'
Residential Construction Loans [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	'	850
Unpaid Principal Balance	'	850
Related Allowance	'	'
Consumer Home Equity [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	286	249
Unpaid Principal Balance	289	253
Related Allowance	'	'
Consumer Home Equity [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	148	149
Unpaid Principal Balance	148	149
Related Allowance	44	45
Consumer Dealer Auto and RV Loans [Member] | With No Related Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	24	6
Unpaid Principal Balance	24	6
Related Allowance	'	'
Consumer Dealer Auto and RV Loans [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	3	3
Unpaid Principal Balance	3	3
Related Allowance	3	3
Commercial Business [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	56	24
Unpaid Principal Balance	56	24
Related Allowance	56	24
Commercial Business [Member] | With an Allowance Recorded [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	56	24
Unpaid Principal Balance	56	24
Related Allowance	56	24
Residential Construction [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	'	850
Unpaid Principal Balance	'	850
Related Allowance	'	'
Consumer [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	461	407
Unpaid Principal Balance	464	411
Related Allowance	$47	$48

Loans_Receivable_Average_Recor

Loans Receivable - Average Recorded Investment and Interest Income Recognized on Loans (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	$14,123	$13,699	$14,204	$13,387
Interest Income Recognized	126	184	253	378
Commercial Business Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	56	'	56	'
Interest Income Recognized	'	'	1	'
Residential Real Estate, Single Family [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	2,340	1,358	1,848	1,359
Interest Income Recognized	'	1	1	4
Residential Construction Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	'	944	'	898
Interest Income Recognized	'	11	'	18
Consumer [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	449	380	440	360
Interest Income Recognized	6	5	12	13
With No Related Allowance Recorded [Member] | Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	2,978	5,279	3,025	5,207
Interest Income Recognized	13	50	27	120
With No Related Allowance Recorded [Member] | Commercial Business Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	'	'	'	'
Interest Income Recognized	'	'	'	'
With No Related Allowance Recorded [Member] | Residential Real Estate, Single Family [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	1,364	1,358	1,360	1,359
Interest Income Recognized	'	1	1	4
With No Related Allowance Recorded [Member] | Residential Construction Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	'	944	'	898
Interest Income Recognized	'	11	'	18
With No Related Allowance Recorded [Member] | Consumer Home Equity [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	273	190	262	170
Interest Income Recognized	3	2	7	6
With No Related Allowance Recorded [Member] | Consumer Dealer Auto and RV Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	25	10	26	11
Interest Income Recognized	'	1	1	2
With an Allowance Recorded [Member] | Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	11,145	8,420	11,179	8,180
Interest Income Recognized	113	134	226	258
With an Allowance Recorded [Member] | Commercial Business Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	56	'	56	'
Interest Income Recognized	'	'	1	'
With an Allowance Recorded [Member] | Residential Real Estate, Single Family [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	976	'	488	'
Interest Income Recognized	'	'	'	'
With an Allowance Recorded [Member] | Residential Construction Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	'	'	'	'
Interest Income Recognized	'	'	'	'
With an Allowance Recorded [Member] | Consumer Home Equity [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	148	176	149	175
Interest Income Recognized	3	2	4	5
With an Allowance Recorded [Member] | Consumer Dealer Auto and RV Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average Recorded Investment	3	4	3	4
Interest Income Recognized	'	'	'	'

Loans_Receivable_Schedule_of_L1

Loans Receivable - Schedule of Loans Receivable on Nonaccrual Status (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	$8,724	$8,637
Commercial [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	28	30
Commercial Real Estate [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	5,023	4,787
Residential [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	3,350	3,405
Consumer Home Equity [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	124	214
Consumer Dealer Auto and RV Loans [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	124	136
Consumer Other [Member]	'	'
Non Accrual Loans Segregated By Class Of Loans [Line Items]	'	'
Loans receivable on nonaccrual status	$75	$65

Loans_Receivable_Summary_of_In

Loans Receivable - Summary of Information Relating to Troubled Debt Restructuring by Class of Loans (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
	Contract	Contract	Contract	Contract
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	1	14	5	18
Pre-Modification Outstanding Recorded Investment	$46	$2,303	$138	$2,422
Maturity Date Extension	46	41	53	117
Deferral of Principal Payments	'	'	'	'
Other	'	2,262	85	2,305
Total	46	2,303	138	2,422
Consumer Home Equity [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	1	3	2	6
Pre-Modification Outstanding Recorded Investment	46	15	57	91
Maturity Date Extension	46	15	46	91
Deferral of Principal Payments	'	'	'	'
Other	'	'	11	'
Total	46	15	57	91
Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	11	'	12
Pre-Modification Outstanding Recorded Investment	'	2,288	'	2,331
Maturity Date Extension	'	26	'	26
Deferral of Principal Payments	'	'	'	'
Other	'	2,262	'	2,305
Total	'	2,288	'	2,331
Commercial [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	1	'
Pre-Modification Outstanding Recorded Investment	'	'	57	'
Maturity Date Extension	'	'	0	'
Deferral of Principal Payments	'	'	'	'
Other	'	'	57	'
Total	'	'	57	'
Consumer Dealer Auto and RV Loans [Member]	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	2	'
Pre-Modification Outstanding Recorded Investment	'	'	24	'
Maturity Date Extension	'	'	7	'
Deferral of Principal Payments	'	'	'	'
Other	'	'	17	'
Total	'	'	$24	'

Deposits_Summary_of_Deposits_D

Deposits - Summary of Deposits (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Noninterest-bearing deposits	$124,390	$124,777
NOW account deposits	302,677	234,163
Money Market deposits	42,240	39,688
Passbook account deposits	184,085	178,412
Time deposits	646,771	645,727
Total	$1,300,163	$1,222,767
Percentage of noninterest-bearing deposits	9.60%	10.20%
Percentage of NOW account deposits	23.30%	19.20%
Percentage of Money Market deposits	3.20%	3.20%
Percentage of Passbook account deposits	14.20%	14.60%
Percentage of Time deposits	49.70%	52.80%
Percentage of deposits, total	100.00%	100.00%

Deposits_Schedule_of_Time_Depo

Deposits - Schedule of Time Deposits Maturity (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Within one year	$456,259	$437,731
After one year through two years	99,597	115,976
After two years through three years	67,773	60,045
After three years through four years	12,897	16,393
After four years through five years	6,130	10,871
Thereafter	4,115	4,711
Total	$646,771	$645,727
Within one year, Weighted average rate	70.60%	67.80%
After one year through two years, Weighted average rate	15.40%	18.00%
After two years through three years, Weighted average rate	10.50%	9.30%
After three years through four years, Weighted average rate	2.00%	2.50%
After four years through five years, Weighted average rate	0.90%	1.70%
Thereafter, Weighted average rate	0.60%	0.70%
Total, Weighted average rate	100.00%	100.00%

Borrowed_Funds_Summary_of_Borr

Borrowed Funds - Summary of Borrowed Funds (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	1.95%	2.12%
Due beyond 12 months but within 2 years, Weighted average rate	0.95%	2.14%
Due beyond 2 years but within 3 years, Weighted average rate	1.11%	0.99%
Due beyond 3 years but within 4 years, Weighted average rate	1.60%	1.34%
Due beyond 4 years but within 5 years, Weighted average rate	3.21%	3.26%
Due within 12 months	$57,180	$101,492
Due beyond 12 months but within 2 years	60,075	25,873
Due beyond 2 years but within 3 years	85,466	78,008
Due beyond 3 years but within 4 years	44,375	73,380
Due beyond 4 years but within 5 years	12,628	12,168
Total	259,724	290,921
Repurchase Agreements [Member]	'	'
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	2.24%	2.34%
Due beyond 12 months but within 2 years, Weighted average rate	'	4.12%
Due beyond 2 years but within 3 years, Weighted average rate	4.28%	'
Due beyond 3 years but within 4 years, Weighted average rate	3.90%	4.28%
Due beyond 4 years but within 5 years, Weighted average rate	4.66%	4.49%
Due within 12 months	38,000	58,000
Due beyond 12 months but within 2 years	'	10,000
Due beyond 2 years but within 3 years	25,000	'
Due beyond 3 years but within 4 years	10,000	25,000
Due beyond 4 years but within 5 years	35,000	45,000
Total	108,000	138,000
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%
Due within 12 months	1,000	1,000
Due beyond 12 months but within 2 years	750	1,000
Due beyond 2 years but within 3 years	'	250
Total	1,750	2,250
Corporate Borrowings [Member]	'	'
Debt Instrument [Line Items]	'	'
Due within 12 months, Weighted average rate	3.75%	3.75%
Due beyond 12 months but within 2 years, Weighted average rate	3.75%	3.75%
Due beyond 2 years but within 3 years, Weighted average rate	3.75%	3.75%
Due beyond 3 years but within 4 years, Weighted average rate	3.75%	3.75%
Due beyond 4 years but within 5 years, Weighted average rate	'	3.75%
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	1,000	1,000
Due beyond 3 years but within 4 years	5,972	1,000
Due beyond 4 years but within 5 years	'	5,973
Total	8,972	9,973
Junior Subordinated Notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Due beyond 5 years, Weighted average rate	2.04%	2.06%
Due beyond 5 years	$36,083	$36,083

Borrowed_Funds_Additional_Info

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

3 Months Ended

6 Months Ended

12 Months Ended

6 Months Ended

0 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Feb. 10, 2005

Jun. 30, 2014

Feb. 10, 2005

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Trust IV Preferred Securities [Member]

ESB Capital Trust IV (Trust IV) [Member]

ESB Capital Trust IV (Trust IV) [Member]

ESB Capital Trust IV (Trust IV) [Member]

Structured Repurchase Agreement with Imbedded Cap [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]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

REPOs with other banks

$108,000,000

$108,000,000

'

'

'

'

'

'

'

'

$25,000,000

$45,000,000

$30,000,000

$30,000,000

$43,000,000

$43,000,000

$10,000,000

$20,000,000

LIBOR rate

'

'3 months

'

'

'

'

'

'

'3 months

'

'

'

'

'

'

'

'

'

Repurchase agreements with fixed interest rate

'

'

'

'

'

'

'

10,000,000

25,000,000

'

'

'

'

'

'

'

'

'

Debt instrument variable rates basis

'

'

'

'

'

'

'

'

'10.0 million structured REPO with an imbedded cap at a strike rate of 3.00% based on the 3 month LIBOR rate

'

'

'

'

'

'

'

'

'

Strike rate of imbedded caps

'

'

'

'

'

'

'

'

3.00%

'

'

'

'

'

'

'

'

'

REPO interest rate term

'

'

'

'

'

'

'

'

'3.00% based on the 3 month LIBOR rate

'

'

'

'

'

'

'

'

'

Market value of the securities

129,900,000

129,900,000

168,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available for sale, cost

1,065,482,000

1,065,482,000

1,051,311,000

'

'

'

'

'

122,000,000

160,400,000

'

'

'

'

'

'

'

'

Repurchase agreements, maturities

'

'Greater than 90 days

'Greater than 90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Risk related to repurchase agreement amount

'

'

'

'

'

'

'

'

'

'

2,300,000

'

6,300,000

'

10,700,000

'

81,000,000,000

'

Weighted average maturity

'

'

'

'

'

'

'

'

'

'

'34 months

'

'37 months

'

'32 months

'

'1 month

'

Average borrowings under REPO

114,700,000

123,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum month-end outstanding amount

118,000,000

138,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities

'

'

'

'

'

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

Purchase of common securities

'

'

'

'

1,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities fixed interest rate

'

'

'

'

'

'6.03% for six years

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities variable interest rate

'

'

'

'

'

'Three month LIBOR plus 1.82%

'

'

'

'

'

'

'

'

'

'

'

'

Maturity year of preferred securities

'

'

'

'

'

'30 years

'

'

'

'

'

'

'

'

'

'

'

'

Fixed interest rate

'

'

'

6.03%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities interest rate

'

'

'

1.82%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Preferred securities maturity period

'

'6 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Subordinated debt

'

'

'

'

'

$36,100,000

'

'

'

'

'

'

'

'

'

'

'

'

Maturity date of subordinated debt start date range

'

'

'

'

'

10-Feb-11

'

'

'

'

'

'

'

'

'

'

'

'

Maturity date of subordinated debt end date range

'

'

'

'

'

10-Feb-35

'

'

'

'

'

'

'

'

'

'

'

'

Maturity of redemption of subordinated debt

'

'

'

'90 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net_Income_Per_Share_Summary_o

Net Income Per Share - Summary of Net Income Per Share (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Net income	$4,700	$3,876	$9,040	$7,590
Weighted-average common shares outstanding	17,578,543	17,353,359	17,558,380	17,332,898
Basic earnings per share	$0.27	$0.22	$0.51	$0.44
Common stock equivalents due to effect of stock options	195,000	169,000	209,000	161,000
Total weighted-average common shares and equivalents	17,773,656	17,521,793	17,766,951	17,493,942
Diluted earnings per share	$0.26	$0.22	$0.51	$0.43

Net_Income_Per_Share_Additiona

Net Income Per Share - Additional Information (Detail) (USD $)	0 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Schedule Of Earnings Per Share [Line Items]	'	'
Shares controlled by Employee Stock Ownership Plan (ESOP)	200,569	296,095
Options Expiring November 2020 [Member]	'	'
Schedule Of Earnings Per Share [Line Items]	'	'
Options excluded from computation of earnings per share	32,353	65,386
Options purchase price per diluted share	$10.35	$10.35
Options Expiring November 2021 [Member]	'	'
Schedule Of Earnings Per Share [Line Items]	'	'
Options excluded from computation of earnings per share	51,707	78,424
Options purchase price per diluted share	$11	$11
Options Expiring November 2022 [Member]	'	'
Schedule Of Earnings Per Share [Line Items]	'	'
Options excluded from computation of earnings per share	120,556	190,335
Options purchase price per diluted share	$10.50	$10.50
Options Expiring November 2023 [Member]	'	'
Schedule Of Earnings Per Share [Line Items]	'	'
Options excluded from computation of earnings per share	258,354	'
Options purchase price per diluted share	$13.36	'

Comprehensive_Income_Summary_o

Comprehensive Income - Summary of Amounts Recognized in Other Comprehensive Income Loss (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Available-for-sale securities	'	'	'	'
Realized gain on sale of securities	'	($198)	($288)	($467)
Impairment expense	'	'	193	'
Available-for-sale securities, Total before tax	'	-198	-95	-467
Provision for income tax expense	'	67	32	159
Available-for-sale securities, Net of tax	'	-131	-63	-308
Defined benefit pension plan items	'	'	'	'
Amortization of prior service costs	23	26	47	53
Amortization of actuarial gains/(losses)	10	10	20	20
Defined benefit pension plan items, Total before tax	33	36	67	73
Defined benefit pension plan items, Provision for income tax expense	-11	-12	-23	-25
Defined benefit pension plan items, Net of tax	22	24	44	48
Total reclassifications	$22	($107)	($19)	($260)

Comprehensive_Income_Summary_o1

Comprehensive Income - Summary of Comprehensive Income Loss (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Amounts Reclassified Out Of Accumulated Other Comprehensive Income Loss [Abstract]	'	'	'	'
Beginning balance, Gains/(losses) on Cash Flow Hedges	($2,417)	($3,556)	($2,515)	($3,733)
Other comprehensive income/(loss) before reclassification, Gains/(losses) on Cash Flow Hedges	29	726	127	904
Amounts reclassified from AOCI, Gains/(losses) on Cash Flow Hedges	'	'	'	'
Fair Value adjustment on derivatives, net of tax	29	726	127	904
Ending balance, Gains/(losses) on Cash Flow Hedges	-2,388	-2,830	-2,388	-2,830
Beginning balance, Unrealized gains/(losses) on available-for-sale securities	12,719	27,327	7,608	29,464
Other comprehensive income/(loss) before reclassification, Unrealized gains/(losses) on available-for-sale securities	5,675	-14,199	10,850	-16,160
Amounts reclassified from AOCI, Unrealized gains/(losses) on available-for-sale securities	'	-131	-63	-308
Net current period OCI, Unrealized gains/(losses) on available-for-sale securities	5,675	-14,330	10,787	-16,468
Ending Balance, Unrealized gains/(losses) on available-for-sale securities	18,394	12,997	18,394	12,997
Beginning balance, Defined benefit pension plan items	-455	-604	-478	-628
Other comprehensive income/(loss) before reclassification, Defined benefit pension plan items	'	'	'	'
Amounts reclassified from AOCI, Defined benefit pension plan items	22	24	44	48
Net current period OCI, Defined benefit pension plan items	22	24	44	48
Ending balance, Defined benefit pension plan items	-433	-580	-433	-580
Beginning balance, Total	9,847	23,167	4,615	25,103
Other comprehensive income/(loss) before reclassification, Total	5,704	-13,473	10,977	-15,256
Amounts reclassified from AOCI, Total	22	-107	-19	-260
Net current period OCI, Total	5,726	-13,580	10,958	-15,516
Ending balance, Total	$15,573	$9,587	$15,573	$9,587

Retirement_Plans_Additional_In

Retirement Plans - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2014
	Directors
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Number of director eligible for the benefit under defined benefit plan	3
Directors' Retirement Plan [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Annual retirement benefit age	'75 years
SERP [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Annual retirement benefit age	'65 years
Annual retirement benefit percentage	25.00%
Credited service	'1 year
Number of payments	'Lump sum or ten equal annual payments
Credited service description	'Twenty or more years
Benefit plan premium equally paid	'10 years
Benefit payable upon early retirement	'At age 50 with at least twelve years of service
Service needed to lesser benefit payable upon early retirement	'12 years
Minimum [Member] | ESB Financial Corporation Director's Retirement Plan [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Service period to get retirement benefit	'5 years
Retirement benefit calculation ratio	25.00%
Years of service required for ratios	'10 years
Minimum [Member] | SERP [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Final average pay multiplied by a ratio	1.25%
Participants credited service under benefit plans	'23 years
Maximum [Member] | ESB Financial Corporation Director's Retirement Plan [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Service period to get retirement benefit	'10 years
Retirement benefit calculation ratio	80.00%
Years of service required for ratios	'20 years
Maximum [Member] | SERP [Member]	'
Pension Plans, Postretirement and Other Employee Benefits [Line Items]	'
Final average pay multiplied by a ratio	25.00%
Participants credited service under benefit plans	'35 years

Retirement_Plans_Schedule_of_N

Retirement Plans - Schedule of Net Periodic Pension Cost for Retirement Plan (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
SERP [Member]	'	'	'	'
Components of net periodic pension cost	'	'	'	'
Service cost	$22	$25	$44	$50
Interest cost	36	28	72	56
Amortization of prior service cost	22	26	44	52
Amortization of unrecognized gains and losses	10	10	20	20
Net periodic pension cost	90	89	180	178
Directors' Retirement Plan [Member]	'	'	'	'
Components of net periodic pension cost	'	'	'	'
Service cost	2	1	4	2
Interest cost	9	7	18	14
Net periodic pension cost	$11	$8	$22	$16

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Credit spreads on Moody's rating	'35 to 65 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	49.44%	'
Write-downs on REO properties	15,000	50,000
Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment in floating rate trust preferred securities	$37,100,000	'

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 $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	$1,093,354	$1,063,016
Mortgage backed securities	686,117	636,229
Total other assets	462	717
U.S. Sponsored Entities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	684,545	634,424
Mortgage backed securities	684,545	634,424
Private Label [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,572	1,805
Mortgage backed securities	1,572	1,805
Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	38,854	38,906
Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	180,312	179,740
Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,453	1,921
Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	186,618	206,220
Interest Rate Caps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other assets	462	717
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	1,453	1,921
Mortgage backed securities	'	'
Total other assets	'	'
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	'	'
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	'	'
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Trust Preferred Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
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	1,453	1,921
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
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	'	'
Significant Other Observable Inputs (Level II) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	1,054,846	1,023,886
Mortgage backed securities	686,117	636,229
Total other assets	462	717
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	684,545	634,424
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	1,572	1,805
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	1,799	1,697
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	180,312	179,740
Significant Other Observable Inputs (Level II) [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
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	186,618	206,220
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	462	717
Significant Unobservable Inputs (Level III) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	37,055	37,209
Mortgage backed securities	'	'
Total other assets	'	'
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	'	'
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	'	'
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	37,055	37,209
Significant Unobservable Inputs (Level III) [Member] | Municipal Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
Significant Unobservable Inputs (Level III) [Member] | Equity Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
Significant Unobservable Inputs (Level III) [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Securities available for sale	'	'
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, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	3,618	3,870
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	3,618	3,870
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]	'	'
Total other liabilities	'	'
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] | Significant Other Observable Inputs (Level II) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	3,618	3,870
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	3,618	3,870
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level III) [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 Swaps [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total other liabilities	'	'

Fair_Value_Fair_Value_Measurem

Fair Value - Fair Value Measurements Using Significant Unobservable Inputs (Level III) (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Total net realized/unrealized gains (losses) Included in earnings:	'	'	'	'
Interest income on securities	$4	$4	$7	$7
Net realized loss on securities available for sale	'	'	193	'
Significant Unobservable Inputs (Level III) [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Beginning balance	37,146	36,353	37,209	36,179
Total net realized/unrealized gains (losses) Included in earnings:	'	'	'	'
Interest income on securities	4	4	7	7
Net realized loss on securities available for sale	'	'	-193	'
Included in other comprehensive income	-95	577	32	748
Transfers in and/or out of Level III	'	'	'	'
Purchases, issuances and settlements	'	'	'	'
Purchases	'	'	'	'
Issuances	'	'	'	'
Sales	'	'	'	'
Settlements	'	'	'	'
Ending balance	$37,055	$36,934	$37,055	$36,934

Fair_Value_Changes_in_Unrealiz

Fair Value - Changes in Unrealized Gains and Losses Recorded in Earnings for Level III Assets and Liabilities (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Fair Value Assets And Liabilities Measured On Recurring Basis Gain Loss Included In Earnings [Abstract]	'	'	'	'
Interest income on securities	$4	$4	$7	$7
Net realized loss on securities available for sale	'	'	-193	'
Total	$4	$4	($186)	$7

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 $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Servicing Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair Value of Assets	5	9
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	15,479	15,961
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	2,141	1,977
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	37,055	37,209
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	'9 months	'1 year
Minimum [Member] | Trust Preferred Securities Credit Spreads [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	0.35%	0.40%
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%	2.84%
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 4 months 24 days	'16 years 7 months 24 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	0.65%	0.75%
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%	0.55%
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	'12 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	0.53%	0.63%
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%	0.36%
Weighted Average [Member] | Impaired Loans Discount Rate [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Range/Weighted Average	9.91%	9.95%
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%	11.36%

Financial_Instruments_Carrying

Financial Instruments - Carrying Amount and Fair Value of the Company's Financial Instruments (Detail) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial Assets:	'	'
Securities	$1,093,354	$1,063,016
Securities receivable	712	654
Loans receivable and held for sale	709,373	695,636
Accrued interest receivable	7,342	7,345
FHLB Stock	14,115	15,436
Bank owned life insurance	30,235	30,595
Financial Liabilities:	'	'
Deposits	1,300,163	1,222,767
Junior subordinated notes	36,083	36,083
Advance payments by borrowers for taxes and insurance	3,515	2,659
Carrying Value [Member]	'	'
Financial Assets:	'	'
Cash and Cash Equivalents	14,868	16,214
Securities	1,093,354	1,063,016
Securities receivable	2,380	654
Loans receivable and held for sale	709,373	695,636
Accrued interest receivable	7,342	7,345
FHLB Stock	14,115	15,436
Bank owned life insurance	30,235	30,595
Interest rate cap contracts	462	717
Financial Liabilities:	'	'
Deposits	1,300,163	1,222,767
Borrowed funds	378,446	441,144
Junior subordinated notes	36,083	36,083
Advance payments by borrowers for taxes and insurance	3,515	2,659
Accrued interest payable	2,048	1,046
Interest rate swap contracts	3,618	3,870
Fair Value [Member]	'	'
Financial Assets:	'	'
Cash and Cash Equivalents	14,868	16,214
Securities	1,093,354	1,063,016
Securities receivable	2,380	654
Loans receivable and held for sale	732,778	707,919
Accrued interest receivable	7,342	7,345
FHLB Stock	14,115	15,436
Bank owned life insurance	30,235	30,595
Interest rate cap contracts	462	717
Financial Liabilities:	'	'
Deposits	1,305,799	1,229,435
Borrowed funds	390,402	455,378
Junior subordinated notes	27,062	25,258
Advance payments by borrowers for taxes and insurance	3,515	2,659
Accrued interest payable	2,048	1,046
Interest rate swap contracts	3,618	3,870
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level I) [Member]	'	'
Financial Assets:	'	'
Cash and Cash Equivalents	14,868	16,214
Securities	1,453	1,921
Securities receivable	2,380	654
Loans receivable and held for sale	'	'
Accrued interest receivable	7,342	7,345
FHLB Stock	14,115	15,436
Bank owned life insurance	30,235	30,595
Interest rate cap contracts	'	'
Financial Liabilities:	'	'
Deposits	653,392	577,040
Borrowed funds	'	'
Junior subordinated notes	'	'
Advance payments by borrowers for taxes and insurance	3,515	2,659
Accrued interest payable	2,048	1,046
Interest rate swap contracts	'	'
Significant Other Observable Inputs (Level II) [Member]	'	'
Financial Assets:	'	'
Cash and Cash Equivalents	'	'
Securities	1,054,846	1,023,886
Securities receivable	'	'
Loans receivable and held for sale	'	'
Accrued interest receivable	'	'
FHLB Stock	'	'
Bank owned life insurance	'	'
Interest rate cap contracts	462	717
Financial Liabilities:	'	'
Deposits	'	'
Borrowed funds	119,727	151,942
Junior subordinated notes	27,062	25,258
Advance payments by borrowers for taxes and insurance	'	'
Accrued interest payable	'	'
Interest rate swap contracts	3,618	3,870
Significant Unobservable Inputs (Level III) [Member]	'	'
Financial Assets:	'	'
Cash and Cash Equivalents	'	'
Securities	37,055	37,209
Securities receivable	'	'
Loans receivable and held for sale	732,778	707,919
Accrued interest receivable	'	'
FHLB Stock	'	'
Bank owned life insurance	'	'
Interest rate cap contracts	'	'
Financial Liabilities:	'	'
Deposits	652,407	652,395
Borrowed funds	270,675	303,436
Junior subordinated notes	'	'
Advance payments by borrowers for taxes and insurance	'	'
Accrued interest payable	'	'
Interest rate swap contracts	'	'