Blue Hills Bancorp (BHBK) 10-Q/A 1 Jul 14 2014 Q1 Quarterly report (amended) Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	Jun. 24, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Blue Hills Bancorp, Inc.	'
Entity Central Index Key	'0001601545	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	0

Consolidated_Balance_Sheets_un

Consolidated Balance Sheets (unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$17,811	$8,151
Short-term investments	29,402	32,165
Total cash and cash equivalents	47,213	40,316
Trading assets	0	750
Securities available for sale, at fair value	444,959	441,306
Federal Home Loan Bank stock, at cost	11,246	10,766
Loans, net of allowance for loan losses of $10,346,000 at March 31, 2014 and $9,671,000 at December 31, 2013	914,297	765,347
Premises and equipment, net	18,281	7,478
Accrued interest receivable	3,906	4,290
Goodwill	9,182	0
Core deposit intangible	5,688	0
Net deferred tax asset	1,859	2,831
Bank-owned life insurance	30,080	29,831
Other assets	12,816	11,372
Assets	1,499,527	1,314,287
Deposits [Abstract]	'	'
Non-interest bearing	115,794	43,471
Interest bearing	1,000,967	871,752
Total deposits	1,116,761	915,223
Short-term borrowings	150,000	170,000
Long-term debt	45,000	45,000
Accrued expenses and other liabilities	14,601	12,530
Total liabilities	1,326,362	1,142,753
Commitments and contingencies	'	'
Equity [Abstract]	'	'
Preferred stock, Series A, $1.00 par value, $1,000 liquidation value (50,000 shares authorized; 18,724 issued and outstanding at March 31, 2014 and December 31, 2013)	18,724	18,724
Retained earnings	149,742	150,345
Accumulated other comprehensive income	4,699	2,465
Total equity	173,165	171,534
Liabilities and Equity	$1,499,527	$1,314,287

Consolidated_Balance_Sheets_un1

Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Allowance for Loan Losses	$10,346	$9,671
Preferred stock, par value (dollars per share)	$1	$1
Preferred stock, liquidation preference (dollars per share)	$1,000	$1,000
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	18,724,000	18,724,000
Preferred stock, shares outstanding	18,724,000	18,724,000

Consolidated_Statements_of_Net

Consolidated Statements of Net Income (unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest and dividend income:	'	'
Interest and fees on loans	$8,051	$4,864
Interest on securities	1,937	2,289
Dividends	166	174
Other	15	21
Total interest and dividend income	10,169	7,348
Interest expense:	'	'
Interest on deposits	1,351	1,812
Interest on borrowings	304	292
Total interest expense	1,655	2,104
Net interest and dividend income	8,514	5,244
Provision for loan losses	714	864
Net interest income, after provision for loan losses	7,800	4,380
Noninterest income:	'	'
Deposit account fees	291	133
Interchange and ATM fees	285	188
Gain on sale of residential mortgages, net	68	198
Gains on sales of securities available for sale, net	541	4,290
Gains on trading assets, net	25	171
Loan level derivative income	33	91
Bank-owned life insurance	249	273
Miscellaneous	137	98
Total noninterest income	1,629	5,442
Noninterest expense:	'	'
Salaries and employee benefits	5,129	3,924
Occupancy and equipment	1,601	993
Data processing	605	424
Professional fees	1,159	637
Advertising	301	558
FDIC deposit insurance	178	168
Directorsb fees	150	130
Amortization of core deposit intangible	353	0
Other general and administrative	780	636
Total noninterest expense	10,256	7,470
Income (loss) before income taxes	-827	2,352
Provision (benefit) for income taxes	-428	818
Net income (loss)	($399)	$1,534

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (unaudited) Statement (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'		'
Net income (loss)	($399)		$1,534
Securities available for sale:	'		'
Unrealized holding gains	4,173		3,576
Reclassification adjustment for net gains realized in net income (1)	-541	[1]	-4,290	[1]
Net unrealized gain (loss)	3,632		-714
Tax effect	-1,398		279
Other comprehensive income (loss)	2,234		-435
Comprehensive income	$1,835		$1,099
[1]	Amounts are included in gains on sales of securities available for sale, net in noninterest income in the consolidated statements of operations. Income tax expense associated with the reclassification adjustment for the three months ended March 31, 2014 and 2013 was approximately $188,000 and $1,574,000, respectively.

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (unaudited) (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Reclassification adjustment for net gains realized in net income, tax	$188	$1,574

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Equity (USD $)	Total	Preferred Stock	Retained Earnings	Accumulated Other Comprehensive Income
In Thousands, unless otherwise specified
Beginning balance at Dec. 31, 2012	$176,938	$18,724	$148,211	$10,003
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Comprehensive income (loss)	1,099	0	1,534	-435
Preferred stock dividends declared	-163	0	-163	0
Ending balance at Mar. 31, 2013	177,874	18,724	149,582	9,568
Beginning balance at Dec. 31, 2013	171,534	18,724	150,345	2,465
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'
Comprehensive income (loss)	1,835	0	-399	2,234
Preferred stock dividends declared	-204	0	-204	0
Ending balance at Mar. 31, 2014	$173,165	$18,724	$149,742	$4,699

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net income (loss)	($399)	$1,534
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:	'	'
Provision for loan losses	714	864
Net amortization of securities available for sale	486	594
Gains on sales of securities available for sale, net	-541	-4,290
Net amortization of deferred loan origination costs and discounts	292	142
Depreciation and amortization	306	330
Amortization of core deposit intangible	353	0
Bank-owned life insurance income	-249	-273
Deferred tax benefit	-490	-507
Net change in:	'	'
Trading assets	750	-2,373
Accrued interest receivable	688	1,899
Other assets	-1,380	46
Accrued expenses and other liabilities	1,235	144
Net cash provided by (used in) operating activities	1,765	-1,890
Activity in securities available for sale:	'	'
Purchases	-61,575	-80,996
Sales	48,573	90,909
Maturities/calls	6,474	0
Principal paydowns	6,560	15,438
Loan (originations) net of paydowns	-22,056	8,287
Purchases of loans	-30,337	-21,371
Net purchases of premises and equipment	-347	-457
Purchases of FHLBB stock	-480	0
Redemption of FHLBB stock	0	383
Cash provided by business combination, net of purchase price	151,587	0
Net cash provided by investing activities	98,399	12,193
Cash flows from financing activities:	'	'
Net change in deposits, excluding brokered	-2,145	-42,105
Net change in brokered deposits	-70,918	79,623
Net change in short-term borrowings	-20,000	-69,424
Preferred stock dividends paid	-204	-163
Net cash used in financing activities	-93,267	-32,069
Net change in cash and cash equivalents	6,897	-21,766
Cash and cash equivalents at beginning of year	40,316	73,819
Cash and cash equivalents at end of year	47,213	52,053
Supplementary information:	'	'
Interest paid	1,652	2,101
Income taxes paid, net of refunds	82	1,932
Preferred stock dividends declared	204	163
Fair value of non-cash assets acquired	123,755	0
Fair value of liabilities assumed	$275,342	$0

Plan_of_Conversion

Plan of Conversion	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Plan of Conversion	'
	PLAN OF CONVERSION
	On March 6, 2014, the Board of Trustees of Hyde Park Bancorp, MHC adopted a plan of conversion under which Hyde Park Bancorp, MHC would convert from a mutual holding company to a stock holding company. The plan of conversion has been approved by Hyde Park Bancorp, MHC’s corporators and the Board of Governors of the Federal Reserve System, but remains subject to approval by the Massachusetts Division of Banks. If such approval is obtained, Hyde Park Bancorp, MHC will merge with and into Hyde Park Bancorp, Inc., a Massachusetts corporation, with Hyde Park Bancorp, Inc. as the resulting entity (the “MHC Merger”). Immediately after the MHC Merger, Hyde Park Bancorp, Inc. will merge with and into Blue Hills Bancorp, Inc., a Maryland corporation (the “Company”), with the Company as the resulting entity. Blue Hills Bank (the “Bank”) will become a wholly-owned subsidiary of the Company, and the Company will issue and sell shares of its common stock to eligible depositors of the Bank and, if necessary, others. The Company may sell up to 27,772,500 shares of common stock at $10.00 per share, including up to 2,277,345 shares that may be purchased by the Bank’s employee stock ownership plan (“ESOP”). The purchase of common stock by the ESOP will be financed by a loan from the Company or a subsidiary of the Company.
	The direct costs of the Company’s stock offering will be deferred and deducted from the proceeds of the offering. At March 31, 2014, total deferred costs were $434,000. In the event the conversion and offering are not completed, any deferred costs will be charged to operations. Through March 31, 2014, the Company had incurred approximately $488,000 incremental organizational conversion costs that were charged to operations.
	In connection with the plan of conversion, the Company plans to establish the Blue Hills Bank Foundation (the “Foundation”). The Foundation will be funded with 2.5% of the Company’s stock that is sold in the offering and an amount of cash such that the total contribution will equal $7.0 million.
	At the time of conversion from a mutual holding company to a stock holding company, the Company will substantially restrict retained earnings by establishing a liquidation account and the Bank will establish a parallel liquidation account. The liquidation account will be maintained for the benefit of eligible deposit account holders who continue to maintain their accounts at the Bank after conversion. The liquidation account will be reduced annually to the extent that eligible account holders have reduced their qualifying deposits. Subsequent increases will not restore an eligible account holder’s interest in the liquidation account. In the event of a complete liquidation of the Bank, and only in such event, each account holder will be entitled to receive a distribution from the liquidation account in an amount proportionate to the adjusted qualifying account balances then held. Neither the Company nor the Bank may declare or pay a cash dividend on its common stock if such dividend would cause its regulatory capital to be reduced below the amount required to maintain its respective liquidation account.

Basis_of_Presentation_and_Cons

Basis of Presentation and Consolidation	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation and Consolidation	'
	BASIS OF PRESENTATION AND CONSOLIDATION
	The accompanying unaudited interim consolidated financial statements include the accounts of Hyde Park Bancorp, MHC and its wholly-owned subsidiary Hyde Park Bancorp, Inc. (the mid-tier “Subsidiary”). The Subsidiary owns 100% of Blue Hills Bank. The Bank has two wholly-owned subsidiaries, HP Security Corporation and 1196 Corporation. HP Security Corporation is a Massachusetts security corporation and 1196 Corporation holds a restricted stock. All significant intercompany balances and transactions have been eliminated in consolidation. These financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial information, and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all the information and footnotes required by GAAP for complete financial statements.
	In the opinion of management, all adjustments (consisting only of normal recurring accruals) considered necessary for a fair presentation have been included. The accompanying consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in Blue Hills Bancorp's filing on Form S-1 which included the years ended December 31, 2013 and 2012. The results of operations for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for the entire year or any other interim period.
	Loan policies
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for the allowance for loan losses, charge-offs and any deferred fees and costs on originated and purchased loans. Interest income is accrued on the unpaid principal balance. Deferred loan origination fees/costs and discounts on purchased loans are recognized as an adjustment of the related loan yield using the interest method.
	It is the policy of the Company to discontinue the accrual of interest on loans past due in excess of 90 days, unless the loan is well-secured and in the process of collection, or when in the judgment of management, the ultimate collectability of the principal or interest becomes doubtful and to reverse all interest previously accrued against interest income. Past due status is based on contractual terms of the loan. The interest on non-accrual loans is accounted for on the cash-basis until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due have been current for six consecutive months and future payments are reasonably assured.
	Allowance for loan losses
	The allowance for loan losses is based on the size and the composition of the loan portfolio, delinquency levels, loss experience, economic conditions and other factors related to the collectability of the loan portfolio. Because 2013 and 2012 saw the growth in number and size of portfolios for which the Company had no prior loss experience, the loss experience extrapolated for all portfolios was derived from available national and state peer group losses for relevant portfolios generally over the years 2008-2013. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated regularly by management and reflects consideration of all significant factors that affect the collectability of the loan portfolio. The evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available; however, because of the increase in risk exposures new to the Company, it is the intention of management to maintain an allowance that is prudently commensurate with the growth in the loan portfolio.
	The allowance consists of general, allocated and unallocated components, as further described below.
	General component
	The general component of the allowance for loan losses is based on either actual or extrapolated historical loss experience for periods ranging from three to five years, adjusted for qualitative and environmental factors including levels/trends in delinquencies; trends in volumes and terms of loans; effects of changes in risk selection and underwriting standards and other changes in lending policies, procedures and practices; experience/ability/depth of lending management and staff; and national and local economic trends and conditions.
	The qualitative factors are determined based on the various risk characteristics of each loan segment. Risk characteristics relevant to each portfolio segment are as follows:
	Residential real estate - The Company does not generally originate loans with a loan-to-value ratio greater than 80 percent and does not generally grant loans that would be classified as subprime upon origination. When the Company does extend credit either on a first- or second-lien basis at a loan-to-value ratio greater than 80 percent, such loans are supported by either mortgage insurance or state guarantee programs. All loans in this segment are collateralized by owner-occupied 1-4 family residential real estate and repayment is dependent on the credit quality of the individual borrower. The health of the regional economy, including unemployment rates and housing prices, will have an effect on the credit quality of loans in this segment.
	Commercial real estate - Loans in this segment include investment real estate and are generally secured by assignments of leases, real estate collateral and guarantees from sponsors or owners. In cases where there is a concentration of exposure to a single large tenant, underwriting standards include analysis of the tenant’s ability to support lease payments over the duration of the loan. The underlying cash flows generated by the properties are adversely impacted by a downturn in the economy as evidenced by increased vacancy rates, which in turn, will have an effect on the credit quality in this segment. Payments on loans secured by income-producing properties often depend on the successful operation and management of the properties. Management continually monitors the cash flows of these loans.
	Construction - Loans in this segment primarily include speculative real estate development loans for which payment is derived from sale of the property. Credit risk is affected by cost overruns, time to sell at an adequate price, and market conditions.
	Home equity - Loans in this segment are generally secured by 1st or 2nd liens on residential real estate. Repayment is dependent on the credit quality of the individual borrower. The Company evaluates each loan application based on factors including the borrower’s credit score, income, length of employment, and other factors to establish the creditworthiness of the borrower. The Company purchased a geographically diverse portfolio of seasoned home equity lines of credit (HELOC) which are serviced by a third party. The rate of provision for this portfolio is slightly lower than that for the organically originated HELOC portfolio due to its seasoning, low loan-to-values, high credit scores, and first-lien collateral position.
	Consumer - Loans in this segment primarily include used auto loans. A significant portion of the used auto loan portfolio is comprised of geographically diverse loans originated by and purchased from a third party, who also provides collection services. While this portfolio generated minimal charge-offs the provisions for loan losses reflect management’s estimate of inherent losses based on a review of regional and national historical losses of other institutions with similar portfolios.
	Allocated component
	The allocated component relates to loans that are on the watch list (non-accruing loans, partially charged-off non-accruing loans and accruing adversely-rated loans) and considered impaired. Impairment is measured by either the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the collateral if the loan is collateral dependent. An allowance is established when the discounted cash flows (or collateral value) of the impaired loan is lower than the carrying value of that loan.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Management reviews all loan types for individual impairment. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
	The Company periodically may agree to modify the contractual terms of loans. When a loan is modified and a concession is made to a borrower experiencing financial difficulty, the modification is considered a troubled debt restructuring (“TDR”). All TDRs are initially classified as impaired and generally remain impaired for the remaining life of the loan. Impaired classification may be removed if the borrower demonstrates compliance with the modified terms and the restructuring agreement specifies an interest rate equal to that which would be provided to a borrower with similar credit at the time of restructuring.
	Unallocated component
	An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating allocated and general reserves in the portfolio.

Acquisition

Acquisition	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Acquisition	'
	ACQUISITION
	On January 18, 2014, the Company completed the acquisition of Nantucket Bank, previously a division of Santander Bank, N.A., formerly Sovereign Bank, N.A. The acquisition included three branches and a commercial lending team in Nantucket that operate under the name Nantucket Bank, a division of Blue Hills Bank, at a purchase price of $10.3 million. The Bank assumed all of the deposits of Nantucket Bank, and acquired cash, selected local commercial loans, home equity loans and lines of credit, and real property. The goodwill resulting from the transaction is expected to be fully deductible for tax purposes. The Nantucket Branch Acquisition assisted in the implementation of our business strategy as it added a strong local market share of core deposits and reduced our dependence on wholesale funding and brokered deposits to fund loan growth. The acquisition provided $161.9 million in cash, net of purchase price, the majority of which has been used to pay down Federal Home Loan Bank advances and brokered deposits. The transaction also changed the interest rate sensitivity of the Bank through the addition of core deposits and the use of the cash to reduce short-term wholesale funding and brokered deposits.
	The Company accounted for the acquisition using the acquisition method. Accordingly, the Company recorded merger and acquisition expenses of $775,000 during the quarter ended March 31, 2014 and $583,000 during the year ended December 31, 2013. Additionally, the acquisition method requires the acquirer to recognize the assets acquired and the liabilities assumed at their fair values as of the acquisition date. The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:
	Assets acquired:
	Cash	$	161,900
	Loans:
	Home Equity	39,966
	Commercial real estate	57,967
	Commercial business	3,862
	Consumer	444
	Discount on purchased loans	(4,773		)
	Loans, net	97,466
	Premises and equipment, net	10,762
	Core deposit intangible	6,041
	Goodwill	9,182
	Accrued interest receivable	304
	Total assets acquired	285,655
	Liabilities assumed:
	Deposits:
	NOW and demand	107,241
	Regular Savings	24,511
	Money market deposits	113,764
	Term certificates	29,085
	Total deposits	274,601
	Accrued expenses and other liabilities	741
	Total liabilities assumed	275,342
	Net purchase price	$	10,313
	Fair value adjustments to assets acquired and liabilities assumed are generally amortized using either an effective yield or straight-line basis over periods consistent with the average life, useful life and/or contractual term of the related assets and liabilities.
	Fair values of the major categories of assets acquired and liabilities assumed were determined as follows:
	Cash and Cash Equivalents
	The fair values of cash and cash equivalents approximate the respective carrying amounts because the instruments are payable on demand or have short-term maturities.
	Loans
	The loans acquired were recorded at fair value without a carryover of the allowance for loan losses. Fair value of the loans is determined using market participant assumptions in estimating the amount and timing of both principal and interest cash flows expected to be collected, as adjusted for an estimate of future credit losses and prepayments, and then applying a market-based discount rate to those cash flows. The overall accretable discount on the loans acquired in this transaction was approximately $4.8 million primarily related to considerations for market interest rates, as well as anticipated credit loss. For the period ended March 31, 2014 the Company recorded approximately $133,000 of interest income attributable to the accretion of the discount on these acquired loans since the acquisition date.
	Core Deposit Intangible
	The fair value of the core deposit intangible is derived by comparing the interest rate and servicing costs that the financial institution pays on the core deposit liability versus the current market rate for alternative sources of financing. The intangible asset represents the stable and relatively low cost source of funds that the deposits and accompanying relationships provide the Company, when compared to alternative funding sources. Amortization of the core deposit intangible of $353,000 was recorded during three month period ending March 31, 2014.
	Premises and Equipment
	The fair value of Nantucket premises, including land, buildings and improvements, was determined based upon appraisal from third party appraisers. The appraisals were based upon the best and highest use of the property with final values determined based upon an analysis of the cost, sales comparison and income capitalization approaches for each property appraised.
	Deposits
	The fair value of acquired savings and transaction deposit accounts was assumed to approximate the carrying value as these accounts have no stated maturity and are payable on demand. The fair value of time deposits were determined based on the present value of the contractual cash flows over the remaining period to maturity using a market interest rate. The estimated fair value adjustment of the certificates of deposits amounted to $137,000. Accretion of certificates of deposit fair value adjustments of $57,000 was recorded during the three month period ending March 31, 2014.

Recent_Accounting_Standards_Up

Recent Accounting Standards Updates	3 Months Ended
	Mar. 31, 2014
Accounting Changes and Error Corrections [Abstract]	'
Recent Accounting Standards Updates	'
	RECENT ACCOUNTING STANDARDS UPDATES
	Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Subtopic 310-40 "Receivables - Troubled Debt Restructurings by Creditors" Update No. 2014-04. Update No. 2014-04 was issued in January 2014 to reduce diversity in practice by clarifying when an in substance repossession or foreclosure occurs, that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. 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 the 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 the update should be applied prospectively and are effective for fiscal years, and interim periods within those years, beginning after December 15, 2014. Early adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company's consolidated financial statements.

Securities_Available_for_Sale

Securities Available for Sale	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Securities Available for Sale	'
	SECURITIES AVAILABLE FOR SALE
	The amortized cost and estimated fair value of securities available for sale, with gross unrealized gains and losses, follows:
		Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
		(In thousands)
	31-Mar-14
	Debt securities:
	U.S. Treasury	$	125,096		$	165	$	(2,624	)	$	122,637
	Government-sponsored enterprises	13,268			54		(60		)	13,262
	Government-sponsored mortgage-backed and collateralized mortgage obligations	66,080			985		(715		)	66,350
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	23,710			70		(196		)	23,584
	Privately issued residential mortgage-backed securities	2,913			548		—			3,461
	SBA asset-backed securities	9,581			—		(264		)	9,317
	Other asset-backed securities	9,788			32		(11		)	9,809
	Total other mortgage- and asset-backed securities	45,992			650		(471		)	46,171
	State and political	21,524			307		(36		)	21,795
	Financial services:
	Banks	14,578			901		(37		)	15,442
	Diversified financials	13,624			553		(20		)	14,157
	Insurance and REITs	14,605			303		(18		)	14,890
	Total financial services	42,807			1,757		(75		)	44,489
	Other corporate:
	Industrials	32,813			851		(85		)	33,579
	Utilities	15,134			331		(61		)	15,404
	Total other corporate	47,947			1,182		(146		)	48,983
	Total debt securities	362,714			5,100		(4,127		)	363,687
	Marketable equity securities:
	Mutual funds:
	Global	5,000			587		—			5,587
	Domestic community	3,216			33		(11		)	3,238
	Global asset allocation	32,956			4,681		—			37,637
	Diversified bonds	34,603			207		—			34,810
	Total marketable equity securities	75,775			5,508		(11		)	81,272
	Total securities available for sale	$	438,489		$	10,608	$	(4,138	)	$	444,959
		Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
		(In thousands)
	31-Dec-13
	Debt securities:
	U.S. Treasury	$	131,781		$	145	$	(3,724	)	$	128,202
	Government-sponsored enterprises	13,985			81		(109		)	13,957
	Government-sponsored mortgage-backed and collateralized mortgage obligations	67,787			778		(1,072		)	67,493
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	22,828			127		(281		)	22,674
	Privately issued residential mortgage-backed securities	3,021			362		—			3,383
	SBA asset-backed securities	9,787			—		(393		)	9,394
	Other asset-backed securities	10,974			57		(9		)	11,022
	Total other mortgage- and asset-backed securities	46,610			546		(683		)	46,473
	State and political	15,628			218		(107		)	15,739
	Financial services:
	Banks	12,535			889		(74		)	13,350
	Diversified financials	14,023			557		(52		)	14,528
	Insurance and REITs	15,635			250		(92		)	15,793
	Total financial services	42,193			1,696		(218		)	43,671
	Other corporate:
	Industrials	32,920			842		(312		)	33,450
	Utilities	12,000			286		(200		)	12,086
	Total other corporate	44,920			1,128		(512		)	45,536
	Total debt securities	362,904			4,592		(6,425		)	361,071
	Marketable equity securities:
Mutual funds:
Global	5,000			540		—			5,540
Domestic community	3,216			48		(43		)	3,221
Global asset allocation	32,956			4,168		—			37,124
Diversified bonds	34,392			71		(113		)	34,350
Total marketable equity securities	75,564			4,827		(156		)	80,235
Total securities available for sale	$	438,468		$	9,419	$	(6,581	)	$	441,306
The amortized cost and estimated fair value of debt securities by contractual maturity at March 31, 2014 follow. Expected maturities will differ from contractual maturities because the issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
	Amortized			Fair
	Cost			Value
	(In thousands)
Within 1 year	$	5,796		$	5,826
After 1 year through 5 years	135,708			136,925
After 5 years through 10 years	95,612			94,684
After 10 years	13,526			13,731
	250,642			251,166
Mortgage- and asset-backed securities and collateralized mortgage obligations	112,072			112,521
	$	362,714		$	363,687
The Company continually reviews investment securities for the existence of other-than-temporary impairment ("OTTI"), taking into consideration current market conditions, the extent and nature of changes in fair value, issuer rating changes and trends, the credit worthiness of the obligor of the security, volatility of earnings, current analysts’ evaluations, the Company’s intent to sell the security, or whether it is more likely than not that the Company will be required to sell the debt security before its anticipated recovery, as well as other qualitative factors. The term “other-than-temporary” is not intended to indicate that the decline is permanent, but indicates that the prospects for a near-term recovery of value is not necessarily favorable, or that there is a lack of evidence to support a realizable value equal to or greater than the carrying value of the investment.
Information pertaining to securities available for sale with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:
	Less Than Twelve Months					More Than Twelve Months
	Gross			Fair		Gross			Fair
	Unrealized			Value		Unrealized			Value
	Losses					Losses
	(In thousands)
31-Mar-14
Debt securities:
U.S. Treasury	$	(2,624	)	$	111,923	$	—		$	—
Government-sponsored enterprises	(60		)	3,970		—			—
Government-sponsored mortgage-backed and collateralized mortgage obligations	(658		)	32,813		(57		)	2,932
Other mortgage- and asset-backed:
Privately issued commercial mortgage- backed securities	(75		)	10,622		(121		)	5,830
SBA asset-backed securities	(184		)	8,460		(80		)	857
Other asset-backed securities	(11		)	2,478		—			—
Total other mortgage- and asset-backed securities	(270		)	21,560		(201		)	6,687
State and political	(4		)	1,097		(32		)	669
Financial services:
Banks	(37		)	2,699		—			—
Diversified financials	(20		)	2,495		—			—
Insurance and REITs	(18		)	4,096		—			—
Total financial services	(75		)	9,290		—			—
Other corporate:
Industrials	(85		)	9,180		—			—
Utilities	(61		)	8,222		—			—
Total other corporate	(146		)	17,402		—			—
Total debt securities	(3,837		)	198,055		(290		)	10,288
Marketable equity securities:
Mutual funds:
Domestic community	—			—		(11		)	455
Total marketable equity securities	—			—		(11		)	455
Total temporarily impaired securities	$	(3,837	)	$	198,055	$	(301	)	$	10,743
	Less Than Twelve Months					More Than Twelve Months
	Gross			Fair		Gross			Fair
	Unrealized			Value		Unrealized			Value
	Losses					Losses
	(In thousands)
31-Dec-13
Debt securities:
U.S. Treasury	$	(3,724	)	$	117,043	$	—		$	—
Government-sponsored enterprises	(109		)	3,920		—			—
Government-sponsored mortgage-backed and collateralized mortgage obligations	(973		)	37,265		(99		)	3,341
Other mortgage- and asset-backed:
Privately issued commercial mortgage- backed securities	(130		)	10,926		(151		)	4,153
SBA asset-backed securities	(393		)	8,499		—			—
Other asset-backed securities	(9		)	7,809		—			—
Total other mortgage- and asset-backed securities	(532		)	27,234		(151		)	4,153
State and political	(107		)	5,904					—
Financial services:
Banks	(74		)	1,773		—			—
Diversified financials	(52		)	1,380		—			—
Insurance and REITs	(92		)	5,466		—			—
Total financial services	(218		)	8,619		—			—
Other corporate:
Industrials	(312		)	10,947		—			—
Utilities	(200		)	12,671		—			—
Total other corporate	(512		)	23,618		—			—
Total debt securities	(6,175		)	223,603		(250		)	7,494
Marketable equity securities:
Mutual funds:
Domestic community	(30		)	2,767		(13		)	453
Diversified bonds	(109		)	21,450		(4		)	71
Total marketable equity securities	(139		)	24,217		(17		)	524
Total temporarily impaired securities	$	(6,314	)	$	247,820	$	(267	)	$	8,018
Management evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation.
At March 31, 2014, multiple debt securities have unrealized losses with aggregate depreciation of less than 2% from the Company’s amortized cost basis. The unrealized losses were primarily caused by interest rate fluctuations. A significant portion of these investments are guaranteed by the U.S. Government or an agency thereof. It is expected that none of these securities would be settled at a price less than the par value of the investment. Because the decline in market value is attributable to changes in interest rates and not to credit quality, and because the Company does not intend to sell the securities and it is more likely than not that the Company will not be required to sell the securities before recovery of their amortized cost bases, which may be maturity, the Company does not consider these securities to be other-than-temporarily impaired at March 31, 2014.
At March 31, 2014, the Company had one mutual fund with unrealized losses of $11,000, or less than 1% depreciation from the Company’s cost basis. No issues have been identified that cause management to believe the declines in market value are other than temporary and the Company has the ability and intent to hold these investments until a recovery of fair value.

Loans_and_The_Allowance_for_Lo

Loans and The Allowance for Loan Loss	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Loans and Allowance for Loan Loss	'
	LOANS AND THE ALLOWANCE FOR LOAN LOSS
	A summary of the balances of loans follows:
		March 31,			December 31,
		2014			2013
		(In thousands)
	Real estate:
	1-4 family residential	$	381,459		$	365,707
	Home equity	64,110			25,535
	Commercial real estate	313,775			228,688
	Construction	23,895			16,559
		783,239			636,489
	Commercial business	115,321			111,154
	Consumer	28,702			25,372
	Total loans	927,262			773,015
	Allowance for loan losses	(10,346		)	(9,671		)
	Discount on purchased loans	(4,964		)	(340		)
	Deferred loan costs and fees, net	2,345			2,343
	Loans, net	$	914,297		$	765,347
	Activity in the allowance for loan losses for the three months ended March 31, 2014 and 2013 and allocation of the allowance to loan segments as of March 31, 2014 and December 31, 2013 follows:
		1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Unallocated			Total
		Residential			Equity			Real Estate				Business
		(In thousands)
	Three Months Ended March 31, 2014
	Allowance at December 31, 2013	$	2,835		$	247		$	2,608	$	303	$	2,416		$	574		$	688		$	9,671
	Provision (credit) for loan losses	70			21			320		111		173			49			(30		)	714
	Loans charged-off	(18		)	—			—		—		—			(21		)	—			(39		)
	Recoveries	—			—			—		—		—			—			—			—
	Allowance at March 31, 2014	$	2,887		$	268		$	2,928	$	414	$	2,589		$	602		$	658		$	10,346
	Three Months Ended March 31, 2013
	Allowance at December 31, 2012	$	2,725		$	316		$	1,343	$	106	$	565		$	313		$	182		$	5,550
	Provision (credit) for loan losses	(164		)	5			310		9		(89		)	56			737			864
	Loans charged-off	(93		)	—			—		—		—			(7		)	—			(100		)
	Recoveries	80			—			—		—		—			—			—			80
	Allowance at March 31, 2013	$	2,548		$	321		$	1,653	$	115	$	476		$	362		$	919		$	6,394
	Additional information pertaining to the allowance for loan losses at March 31, 2014 and December 31, 2013 is as follows:
		1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Unallocated			Total
		Residential			Equity			Real Estate				Business
		(In thousands)
	31-Mar-14
	Allowance related to impaired loans	$	—		$	—		$	—	$	—	$	—		$	—		$	—		—
	Allowance related to non-impaired loans	2,887			268			2,928		414		2,589			602			658			10,346
	Total allowance for loan losses	$	2,887		$	268		$	2,928	$	414	$	2,589		$	602		$	658		$	10,346
	Impaired loans	$	3,304		$	558		$	—	$	—	$	553		$	10		$	—		4,425
	Non-impaired loans	378,155			63,552			313,775		23,895		114,768			28,692			—			922,837
	Total loans	$	381,459		$	64,110		$	313,775	$	23,895	$	115,321		$	28,702		$	—		$	927,262
	31-Dec-13
	Allowance related to impaired loans	$	—		$	—		$	—	$	—	$	—		$	—		$	—		—
	Allowance related to non-impaired loans	2,835			247			2,608		303		2,416			574			688			9,671
	Total allowance for loan losses	$	2,835		$	247		$	2,608	$	303	$	2,416		$	574		$	688		$	9,671
	Impaired loans	$	3,118		$	36		—		$	—	$	—		$	—		$	—		3,154
	Non-impaired loans	362,589			25,499			228,688		16,559		111,154			25,372			—			769,861
	Total loans	$	365,707		$	25,535		$	228,688	$	16,559	$	111,154		$	25,372		$	—		$	773,015
	The following is a summary of past due and non-accrual loans, by loan class, at March 31, 2014 and December 31, 2013:
		30-59 Days			60-89 Days			Past Due 90		Total		Loans on
		Past Due			Past Due			Days or More		Past Due		Non-accrual
		(In thousands)
	March 31, 2014
	Real estate:
	1-4 family residential	$	—		$	608		$	981	$	1,589	$	2,736
	Home equity	284			—			540		824		558
	Commercial business	—			—			—		—		553
	Consumer	5			18			11		34		10
	Total	$	289		$	626		$	1,532	$	2,447	$	3,857
	30-59 Days			60-89 Days			Past Due 90		Total		Loans on
	Past Due			Past Due			Days or More		Past Due		Non-accrual
	(In thousands)
December 31, 2013
Real estate:
1-4 family residential	$	1,426		$	196		$	828	$	2,450	$	1,706
Home equity	—			—			36		36		36
Total	$	1,426		$	196		$	864	$	2,486	$	1,742
There were no loans past due 90 days or more and still accruing at March 31, 2014 and December 31, 2013.
The following is a summary of information pertaining to impaired loans by loan segment at the dates indicated:
	Recorded			Unpaid			Related
	Investment			Principal			Allowance
				Balance
March 31, 2014
Impaired loans without a valuation allowance:
Real estate:
1-4 family residential	$	3,304		$	4,096		$	—
Home equity	558			805			—
Commercial business	553			610			—
Consumer	10			10			—
Total	$	4,425		$	5,521		$	—
December 31, 2013
Impaired loans without a valuation allowance:
Real estate:
1-4 family residential	$	3,118		$	3,893		$	—
Consumer loans	36			36			—
Total	$	3,154		$	3,929		$	—
The following tables set forth information regarding average balances and interest income recognized on impaired loans by portfolio, for the periods indicated:
	Average			Interest
	Recorded			Income
	Investment			Recognized
Three Months Ended March 31, 2014
Real estate:
1-4 family residential	$	3,250		$	34
Home equity	297			4
Commercial business	277			4
Consumer	5			—
Total	$	3,829		$	42
Three Months Ended March 31, 2013
Real estate:
1-4 family residential	$	2,383		$	26
Home equity	24			1
Consumer	36			3
Total	$	2,443		$	30
None of the loans acquired in the Nantucket Acquisition were deemed to be Purchase Credit Impaired ("PCI").
No additional funds are committed to be advanced in connection with impaired loans.
There were no troubled debt restructurings recorded during the three months ended March 31, 2014 and 2013 and there were no troubled debt restructurings that defaulted during the three months ended March 31, 2014 and 2013, for which default was within one year of the restructure date.
Credit Quality Information
The Company utilizes a ten-grade internal loan rating system for all loans as follows:
Loans rated 1 – 6 are considered “acceptable” rated loans that are performing as agreed, meet minimum underwriting standards, and require only routine supervision.
Loans rated 7 are considered “special mention.” These loans are starting to show signs of potential weakness and are being closely monitored by management.
Loans rated 8 – 9 are considered “substandard.” Generally, a loan is considered substandard if it is inadequately protected by the current net worth and paying capacity of the obligors and/or the collateral pledged. There is a distinct possibility that the Company will sustain some loss if the weakness is not corrected. Generally, all loans 90 days delinquent are rated 8.
Loans rated 10 have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, highly questionable and improbable.
The Company assigns a 6 risk-rating to otherwise performing, satisfactorily collateralized Consumer and Residential loans where the Bank becomes aware of deterioration in a FICO score or other indication of potential inability to service the debt. The Company assigns risk ratings of 7-10 to residential or consumer loans that have a well-defined weakness that may jeopardize the collection of the contractual principal and interest, are contractually past due 90 days or more or legal action has commenced against the borrower. All other residential mortgage and consumer loans have no risk rating.
On an annual basis, or more often if needed, the Company formally reviews the ratings on all commercial and construction loans. At least annually, the Company engages an independent third party to review a significant portion of loans within these segments. Management uses the results of these reviews as part of its annual review process. In addition, management utilizes delinquency reports, the watch list and other loan reports to monitor credit quality of other loan segments.
The following tables present the Company’s loans by risk rating at March 31, 2014 and December 31, 2013:
	1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Total
	Residential			Equity			Real Estate				Business						Loans
	(In thousands)
31-Mar-14
Loans rated 1 - 6	$	3,274		$	674		$	310,364	$	23,895	$	106,752		$	214		$	445,173
Loans rated 7	1,824			833			2,324		—		8,563			3			13,547
Loans rated 8 - 9	1,433			—			1,087		—		6			34			2,560
Loans rated 10	693			—			—		—		—			—			693
Loans not rated	374,235			62,603			—		—		—			28,451			465,289
	$	381,459		$	64,110		$	313,775	$	23,895	$	115,321		$	28,702		$	927,262
31-Dec-13
Loans rated 1 - 6	$	1,701		$	4,610		$	223,144	$	15,246	$	110,142		$	—		$	354,843
Loans rated 7	468			—			2,339		—		12			—			2,819
Loans rated 8 - 6	1,647			36			—		—		—			24			1,707
Loans rated 10	693			—			—		—		—			—			693
Loans not rated	361,198			20,889			3,205		1,313		1,000			25,348			412,953
	$	365,707		$	25,535		$	228,688	$	16,559	$	111,154		$	25,372		$	773,015

Interest_Rate_Swap_Agreements

Interest Rate Swap Agreements	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Interest Rate Swap Agreements	'
	INTEREST RATE SWAP AGREEMENTS
	The Company is party to derivative financial instruments in the normal course of business to manage exposure to fluctuations in interest rates and to meet the needs of commercial customers. These financial instruments have been generally limited to loan level interest rate swap agreements, which are entered into with counterparties that meet established credit standards. These transactions involve both credit and market risk. The notional amounts are amounts on which calculations, payments, and the value of the derivatives are based. Notional amounts do not represent direct credit exposures. The fair value of the derivative instruments is reflected on the Company’s balance sheet as other assets and accrued expenses and other liabilities. Changes in the fair value of these agreements are recorded in loan level derivative income in the consolidated statements of operations.
	The Company did not have derivative fair value hedges or derivative cash flow hedges at March 31, 2014 and December 31, 2013. The table below presents information about derivative financial instruments not designated as hedging instruments at March 31, 2014 and and December 31, 2013.
		Derivative Gains				Derivative Losses
		Notional		Fair		Notional		Fair
		Amount		Value		Amount		Value
		(In thousands)
	31-Mar-14
	Economic hedges:
	Commercial loan level interest rate swap agreements	$	184,715	$	3,371	$	184,715	$	3,384
	Other contracts	8,853		6		7,955		16
	Total derivatives	$	193,568	$	3,377	$	192,670	$	3,400
	31-Dec-13
	Economic hedges:
	Commercial loan level interest rate swap agreements	$	171,747	$	2,482	$	171,747	$	2,379
	Other contracts	8,932		5		7,988		14
	Total derivatives	$	180,679	$	2,487	$	179,735	$	2,393
	The Company is exposed to credit-related losses in the event of nonperformance by the counterparties to these agreements. The Company controls the credit risk of its financial contracts through credit approvals, limits and monitoring procedures, and does not expect any counterparties to fail their obligations. The Company has minimum collateral posting thresholds with certain of its interest rate swap derivative counterparties.
	Other contracts represent risk participation agreements on commercial loan level interest rate swap agreements. The Company has entered into risk participation agreements with the correspondent institutions to share in any interest rate swap gains or losses incurred as a result of the commercial loan customers’ termination of a loan level interest rate swap agreement prior to maturity. The Company records these risk participation agreements at fair value.

Deposits

Deposits	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Deposits	'
	DEPOSITS
	A summary of deposit balances, by type, is as follows:
		March 31,		December 31,
		2014		2013
		(In thousands)
	NOW and demand	$	242,544	$	118,648
	Regular savings	351,040		332,518
	Money market deposits	195,713		75,716
	Total non-certificate accounts	789,297		526,882
	Certificates of deposit	306,759		296,718
	Brokered deposits	20,705		91,623
	Total certificate accounts	327,464		388,341
	Total deposits	$	1,116,761	$	915,223
	At March 31, 2014, the scheduled maturities of term certificate accounts, including brokered deposits, are as follows:
		Amount		Weighted
				Average
				Rate
		(Dollars in thousands)
	2015	$	244,180	0.82	%
	2016	39,032		1.56
	2017	29,589		1.4
	2018	10,927		1.18
	2019	3,736		1.12
		$	327,464	0.98	%

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	FAIR VALUE MEASURMENTS
	Determination of fair value
	The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument.
	Fair value hierarchy
	The following methods and assumptions were used by the Company in estimating fair value disclosures for financial instruments:
	Cash and cash equivalents: The carrying amounts of cash and due from banks and short-term investments approximate fair value.
	Trading assets and securities available for sale: All fair value measurements are obtained from a third-party pricing service and are not adjusted by management. The securities measured at fair value in Level 1 are based on quoted market prices in an active exchange market. These securities include U.S. Treasuries and marketable equity securities. All other securities are measured at fair value in Level 2 based on pricing models that consider standard input factors such as observable market data, benchmark yields, interest rate volatilities, broker/dealer quotes, credit spreads and new issue data.
	Federal Home Loan Bank stock: The carrying value of Federal Home Loan Bank stock approximates fair value based on the redemption provisions of the Federal Home Loan Bank.
	Loans: For variable-rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values. Fair values for other types of loans are estimated using discounted cash flow analyses, using market interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Fair values for non-performing loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable.
	Accrued interest receivable: The carrying amount of accrued interest receivable approximates fair value.
	Deposits: The fair values for non-certificate accounts are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). Fair values for certificate accounts are estimated using a discounted cash flow calculation that applies market interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits.
	Borrowings: The carrying value of short-term borrowings approximates fair value based on the short-term nature of the instruments. The fair values of long-term debt are estimated using discounted cash flow analyses based on the current incremental borrowing rates in the market for similar types of borrowing arrangements.
	Derivative instruments: The fair values of interest rate swap agreements are based on a valuation model that uses primarily observable inputs, such as benchmark yield curves and interest rates and also include the value associated with counterparty credit risk.
	Off-balance sheet instruments: Fair values for off-balance sheet lending commitments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. The estimated fair value of off-balance sheet financial instruments at March 31, 2014 and 2013, was immaterial since fees charged are not material.
	Assets and liabilities measured at fair value on a recurring basis
	Assets and liabilities measured at fair value on a recurring basis are summarized below:
		Level 1			Level 2			Level 3		Total
										Fair Value
		(In thousands)
	31-Mar-14
	Assets
	Securities available for sale:
	Debt securities	$	122,637		$	241,050		$	—	$	363,687
	Marketable equity securities	81,272			—			—		81,272
	Derivative assets	—			3,377			—		3,377
	Total assets	$	203,909		$	244,427		$	—	$	448,336
	Liabilities
	Derivative liabilities	$	—		$	3,400		$	—	$	3,400
	31-Dec-13
	Assets
	Trading assets	$	—		$	750		$	—	$	750
	Securities available for sale:
	Debt securities	128,202			232,869			—		361,071
	Marketable equity securities	80,235			—			—		80,235
	Derivative assets	—			2,487			—		2,487
	Total assets	$	208,437		$	236,106		$	—	$	444,543
	Liabilities
	Derivative liabilities	$	—		$	2,393		$	—	$	2,393
	Total liabilities	$	—		$	2,393		$	—	$	2,393
	Assets measured at fair value on a non-recurring basis
	The Company may also be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with generally accepted accounting principles. These adjustments to fair value usually result from application of lower-of-cost-or-market accounting or write-downs of individual assets. There were no assets measured at fair value on a non-recurring basis at March 31, 2013 or December 31, 2013. There are no liabilities measured at fair value on a non-recurring basis. The following tables summarize the fair value hierarchy used to determine each adjustment and the carrying value of the related individual assets:
		31-Mar-14					Three Months Ended March 31, 2014
		Level 1		Level 2	Level 3		Total Losses
		(In thousands)
	Impaired loans	$—		$—	$1,242		$18
	Losses applicable to impaired loans are based on the appraised value of the underlying collateral, discounted as necessary due to management’s estimates of changes in market conditions. The losses applicable to impaired loans are not recorded as a direct adjustment to current earnings or comprehensive income, but rather as a component in determining the overall adequacy of the allowance for loan losses. Adjustments to the estimated fair value of impaired loans may result in increases or decreases to the provision for loan losses.
	Summary of fair values of financial instruments
	The estimated fair values, and related carrying amounts, of the Company’s financial instruments are as follows. Certain financial instruments and all nonfinancial instruments are exempt from disclosure requirements. Accordingly, the aggregate fair value amounts presented herein do not represent the underlying fair value of the Company.
		Carrying			Fair Value
		Amount			Level 1			Level 2		Level 3		Total
		(In thousands)
	31-Mar-14
	Financial assets:
	Cash and cash equivalents	$	47,213		$	47,213		$	—	$	—	$	47,213
	Securities available for sale	444,959			203,909			241,050		—		444,959
	Federal Home Loan Bank stock	11,246			—			—		11,246		11,246
	Loans, net	914,297			—			—		919,572		919,572
	Accrued interest receivable	3,906			—			—		3,906		3,906
	Financial liabilities:
	Deposits	1,116,761			—			—		1,118,457		1,118,457
	Borrowings	195,000			—			196,913		—		196,913
	On-balance sheet derivative financial instruments:
	Interest rate swap agreements:
Assets	3,371			—			3,371		—		3,371
Liabilities	3,384			—			3,384		—		3,384
	Carrying			Fair Value
	Amount			Level 1			Level 2		Level 3		Total
	(In thousands)
31-Dec-13
Financial assets:
Cash and cash equivalents	$	40,316		$	40,316		$	—	$	—	$	40,316
Trading assets	750			—			750		—		750
Securities available for sale	441,306			208,437			232,869		—		441,306
Federal Home Loan Bank stock	10,766			—			—		10,766		10,766
Loans, net	765,347			—			—		769,578		769,578
Accrued interest receivable	4,290			—			—		4,290		4,290
Financial liabilities:
Deposits	915,223			—			—		917,121		917,121
Borrowings	215,000			—			216,332		—		216,332
On-balance sheet derivative financial instruments:
Interest rate swap agreements:
Assets	2,482			—			2,482		—		2,482
Liabilities	2,379			—			2,379		—		2,379

Comprehensive_Income

Comprehensive Income	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Comprehensive Income	'
	COMPREHENSIVE INCOME
	Accounting principles generally require that recognized revenues, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities are reported as a separate component of equity on the consolidated balance sheets, such items, along with net income, are components of comprehensive income.
	The components of accumulated other comprehensive income, included in equity, are as follows:
		March 31,			December 31,
		2014			2013
		(In thousands)
	Securities available for sale:
	Net unrealized gain	$	6,470		$	2,838
	Tax effect	(2,253		)	(855		)
	Net-of-tax amount	4,217			1,983
	Defined benefit pension plan:
	Unrecognized net actuarial gain	803			803
	Tax effect	(321		)	(321		)
	Net-of-tax amount	482			482
		$	4,699		$	2,465

Basis_of_Presentation_and_Cons1

Basis of Presentation and Consolidation (Policies)	3 Months Ended
	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Loans Policy	'
	Loan policies
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their outstanding unpaid principal balances adjusted for the allowance for loan losses, charge-offs and any deferred fees and costs on originated and purchased loans. Interest income is accrued on the unpaid principal balance. Deferred loan origination fees/costs and discounts on purchased loans are recognized as an adjustment of the related loan yield using the interest method.
	It is the policy of the Company to discontinue the accrual of interest on loans past due in excess of 90 days, unless the loan is well-secured and in the process of collection, or when in the judgment of management, the ultimate collectability of the principal or interest becomes doubtful and to reverse all interest previously accrued against interest income. Past due status is based on contractual terms of the loan. The interest on non-accrual loans is accounted for on the cash-basis until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due have been current for six consecutive months and future payments are reasonably assured.
Allowance for Loan Losses Policy	'
	Allowance for loan losses
	The allowance for loan losses is based on the size and the composition of the loan portfolio, delinquency levels, loss experience, economic conditions and other factors related to the collectability of the loan portfolio. Because 2013 and 2012 saw the growth in number and size of portfolios for which the Company had no prior loss experience, the loss experience extrapolated for all portfolios was derived from available national and state peer group losses for relevant portfolios generally over the years 2008-2013. Loan losses are charged against the allowance when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated regularly by management and reflects consideration of all significant factors that affect the collectability of the loan portfolio. The evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available; however, because of the increase in risk exposures new to the Company, it is the intention of management to maintain an allowance that is prudently commensurate with the growth in the loan portfolio.
	The allowance consists of general, allocated and unallocated components, as further described below.
	General component
	The general component of the allowance for loan losses is based on either actual or extrapolated historical loss experience for periods ranging from three to five years, adjusted for qualitative and environmental factors including levels/trends in delinquencies; trends in volumes and terms of loans; effects of changes in risk selection and underwriting standards and other changes in lending policies, procedures and practices; experience/ability/depth of lending management and staff; and national and local economic trends and conditions.
	The qualitative factors are determined based on the various risk characteristics of each loan segment. Risk characteristics relevant to each portfolio segment are as follows:
	Residential real estate - The Company does not generally originate loans with a loan-to-value ratio greater than 80 percent and does not generally grant loans that would be classified as subprime upon origination. When the Company does extend credit either on a first- or second-lien basis at a loan-to-value ratio greater than 80 percent, such loans are supported by either mortgage insurance or state guarantee programs. All loans in this segment are collateralized by owner-occupied 1-4 family residential real estate and repayment is dependent on the credit quality of the individual borrower. The health of the regional economy, including unemployment rates and housing prices, will have an effect on the credit quality of loans in this segment.
	Commercial real estate - Loans in this segment include investment real estate and are generally secured by assignments of leases, real estate collateral and guarantees from sponsors or owners. In cases where there is a concentration of exposure to a single large tenant, underwriting standards include analysis of the tenant’s ability to support lease payments over the duration of the loan. The underlying cash flows generated by the properties are adversely impacted by a downturn in the economy as evidenced by increased vacancy rates, which in turn, will have an effect on the credit quality in this segment. Payments on loans secured by income-producing properties often depend on the successful operation and management of the properties. Management continually monitors the cash flows of these loans.
	Construction - Loans in this segment primarily include speculative real estate development loans for which payment is derived from sale of the property. Credit risk is affected by cost overruns, time to sell at an adequate price, and market conditions.
	Home equity - Loans in this segment are generally secured by 1st or 2nd liens on residential real estate. Repayment is dependent on the credit quality of the individual borrower. The Company evaluates each loan application based on factors including the borrower’s credit score, income, length of employment, and other factors to establish the creditworthiness of the borrower. The Company purchased a geographically diverse portfolio of seasoned home equity lines of credit (HELOC) which are serviced by a third party. The rate of provision for this portfolio is slightly lower than that for the organically originated HELOC portfolio due to its seasoning, low loan-to-values, high credit scores, and first-lien collateral position.
	Consumer - Loans in this segment primarily include used auto loans. A significant portion of the used auto loan portfolio is comprised of geographically diverse loans originated by and purchased from a third party, who also provides collection services. While this portfolio generated minimal charge-offs the provisions for loan losses reflect management’s estimate of inherent losses based on a review of regional and national historical losses of other institutions with similar portfolios.
	Allocated component
	The allocated component relates to loans that are on the watch list (non-accruing loans, partially charged-off non-accruing loans and accruing adversely-rated loans) and considered impaired. Impairment is measured by either the present value of expected future cash flows discounted at the loan’s effective interest rate or the fair value of the collateral if the loan is collateral dependent. An allowance is established when the discounted cash flows (or collateral value) of the impaired loan is lower than the carrying value of that loan.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Management reviews all loan types for individual impairment. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
	The Company periodically may agree to modify the contractual terms of loans. When a loan is modified and a concession is made to a borrower experiencing financial difficulty, the modification is considered a troubled debt restructuring (“TDR”). All TDRs are initially classified as impaired and generally remain impaired for the remaining life of the loan. Impaired classification may be removed if the borrower demonstrates compliance with the modified terms and the restructuring agreement specifies an interest rate equal to that which would be provided to a borrower with similar credit at the time of restructuring.
	Unallocated component
	An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating allocated and general reserves in the portfolio.

Acquisition_Tables

Acquisition (Tables)	3 Months Ended
	Mar. 31, 2014
Business Combinations [Abstract]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:
	Assets acquired:
	Cash	$	161,900
	Loans:
	Home Equity	39,966
	Commercial real estate	57,967
	Commercial business	3,862
	Consumer	444
	Discount on purchased loans	(4,773		)
	Loans, net	97,466
	Premises and equipment, net	10,762
	Core deposit intangible	6,041
	Goodwill	9,182
	Accrued interest receivable	304
	Total assets acquired	285,655
	Liabilities assumed:
	Deposits:
	NOW and demand	107,241
	Regular Savings	24,511
	Money market deposits	113,764
	Term certificates	29,085
	Total deposits	274,601
	Accrued expenses and other liabilities	741
	Total liabilities assumed	275,342
	Net purchase price	$	10,313

Securities_Available_for_Sale_

Securities Available for Sale (Tables)	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Available-for-sale Securities	'
	The amortized cost and estimated fair value of securities available for sale, with gross unrealized gains and losses, follows:
		Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
		(In thousands)
	31-Mar-14
	Debt securities:
	U.S. Treasury	$	125,096		$	165	$	(2,624	)	$	122,637
	Government-sponsored enterprises	13,268			54		(60		)	13,262
	Government-sponsored mortgage-backed and collateralized mortgage obligations	66,080			985		(715		)	66,350
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	23,710			70		(196		)	23,584
	Privately issued residential mortgage-backed securities	2,913			548		—			3,461
	SBA asset-backed securities	9,581			—		(264		)	9,317
	Other asset-backed securities	9,788			32		(11		)	9,809
	Total other mortgage- and asset-backed securities	45,992			650		(471		)	46,171
	State and political	21,524			307		(36		)	21,795
	Financial services:
	Banks	14,578			901		(37		)	15,442
	Diversified financials	13,624			553		(20		)	14,157
	Insurance and REITs	14,605			303		(18		)	14,890
	Total financial services	42,807			1,757		(75		)	44,489
	Other corporate:
	Industrials	32,813			851		(85		)	33,579
	Utilities	15,134			331		(61		)	15,404
	Total other corporate	47,947			1,182		(146		)	48,983
	Total debt securities	362,714			5,100		(4,127		)	363,687
	Marketable equity securities:
	Mutual funds:
	Global	5,000			587		—			5,587
	Domestic community	3,216			33		(11		)	3,238
	Global asset allocation	32,956			4,681		—			37,637
	Diversified bonds	34,603			207		—			34,810
	Total marketable equity securities	75,775			5,508		(11		)	81,272
	Total securities available for sale	$	438,489		$	10,608	$	(4,138	)	$	444,959
		Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
		(In thousands)
	31-Dec-13
	Debt securities:
	U.S. Treasury	$	131,781		$	145	$	(3,724	)	$	128,202
	Government-sponsored enterprises	13,985			81		(109		)	13,957
	Government-sponsored mortgage-backed and collateralized mortgage obligations	67,787			778		(1,072		)	67,493
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	22,828			127		(281		)	22,674
	Privately issued residential mortgage-backed securities	3,021			362		—			3,383
	SBA asset-backed securities	9,787			—		(393		)	9,394
	Other asset-backed securities	10,974			57		(9		)	11,022
	Total other mortgage- and asset-backed securities	46,610			546		(683		)	46,473
	State and political	15,628			218		(107		)	15,739
	Financial services:
	Banks	12,535			889		(74		)	13,350
	Diversified financials	14,023			557		(52		)	14,528
	Insurance and REITs	15,635			250		(92		)	15,793
	Total financial services	42,193			1,696		(218		)	43,671
	Other corporate:
	Industrials	32,920			842		(312		)	33,450
	Utilities	12,000			286		(200		)	12,086
	Total other corporate	44,920			1,128		(512		)	45,536
	Total debt securities	362,904			4,592		(6,425		)	361,071
	Marketable equity securities:
	Mutual funds:
Global	5,000			540		—			5,540
Domestic community	3,216			48		(43		)	3,221
Global asset allocation	32,956			4,168		—			37,124
Diversified bonds	34,392			71		(113		)	34,350
Total marketable equity securities	75,564			4,827		(156		)	80,235
Total securities available for sale	$	438,468		$	9,419	$	(6,581	)	$	441,306
Investments Classified by Contractual Maturity Date	'
	The amortized cost and estimated fair value of debt securities by contractual maturity at March 31, 2014 follow. Expected maturities will differ from contractual maturities because the issuers may have the right to call or prepay obligations with or without call or prepayment penalties.
		Amortized			Fair
		Cost			Value
		(In thousands)
	Within 1 year	$	5,796		$	5,826
	After 1 year through 5 years	135,708			136,925
	After 5 years through 10 years	95,612			94,684
	After 10 years	13,526			13,731
		250,642			251,166
	Mortgage- and asset-backed securities and collateralized mortgage obligations	112,072			112,521
		$	362,714		$	363,687
Unrealized Gain (Loss) and Fair Value of Investments	'
	Information pertaining to securities available for sale with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows:
		Less Than Twelve Months					More Than Twelve Months
		Gross			Fair		Gross			Fair
		Unrealized			Value		Unrealized			Value
		Losses					Losses
		(In thousands)
	31-Mar-14
	Debt securities:
	U.S. Treasury	$	(2,624	)	$	111,923	$	—		$	—
	Government-sponsored enterprises	(60		)	3,970		—			—
	Government-sponsored mortgage-backed and collateralized mortgage obligations	(658		)	32,813		(57		)	2,932
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	(75		)	10,622		(121		)	5,830
	SBA asset-backed securities	(184		)	8,460		(80		)	857
	Other asset-backed securities	(11		)	2,478		—			—
	Total other mortgage- and asset-backed securities	(270		)	21,560		(201		)	6,687
	State and political	(4		)	1,097		(32		)	669
	Financial services:
	Banks	(37		)	2,699		—			—
	Diversified financials	(20		)	2,495		—			—
	Insurance and REITs	(18		)	4,096		—			—
	Total financial services	(75		)	9,290		—			—
	Other corporate:
	Industrials	(85		)	9,180		—			—
	Utilities	(61		)	8,222		—			—
	Total other corporate	(146		)	17,402		—			—
	Total debt securities	(3,837		)	198,055		(290		)	10,288
	Marketable equity securities:
	Mutual funds:
	Domestic community	—			—		(11		)	455
	Total marketable equity securities	—			—		(11		)	455
	Total temporarily impaired securities	$	(3,837	)	$	198,055	$	(301	)	$	10,743
		Less Than Twelve Months					More Than Twelve Months
		Gross			Fair		Gross			Fair
		Unrealized			Value		Unrealized			Value
		Losses					Losses
		(In thousands)
	31-Dec-13
	Debt securities:
	U.S. Treasury	$	(3,724	)	$	117,043	$	—		$	—
	Government-sponsored enterprises	(109		)	3,920		—			—
	Government-sponsored mortgage-backed and collateralized mortgage obligations	(973		)	37,265		(99		)	3,341
	Other mortgage- and asset-backed:
	Privately issued commercial mortgage- backed securities	(130		)	10,926		(151		)	4,153
	SBA asset-backed securities	(393		)	8,499		—			—
	Other asset-backed securities	(9		)	7,809		—			—
	Total other mortgage- and asset-backed securities	(532		)	27,234		(151		)	4,153
	State and political	(107		)	5,904					—
	Financial services:
	Banks	(74		)	1,773		—			—
	Diversified financials	(52		)	1,380		—			—
	Insurance and REITs	(92		)	5,466		—			—
	Total financial services	(218		)	8,619		—			—
	Other corporate:
	Industrials	(312		)	10,947		—			—
	Utilities	(200		)	12,671		—			—
	Total other corporate	(512		)	23,618		—			—
	Total debt securities	(6,175		)	223,603		(250		)	7,494
	Marketable equity securities:
	Mutual funds:
	Domestic community	(30		)	2,767		(13		)	453
	Diversified bonds	(109		)	21,450		(4		)	71
	Total marketable equity securities	(139		)	24,217		(17		)	524
Total temporarily impaired securities	$	(6,314	)	$	247,820	$	(267	)	$	8,018

Loans_and_The_Allowance_for_Lo1

Loans and The Allowance for Loan Loss (Tables)	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Schedule of Accounts, Notes, Loans and Financing Receivable	'
	A summary of the balances of loans follows:
		March 31,			December 31,
		2014			2013
		(In thousands)
	Real estate:
	1-4 family residential	$	381,459		$	365,707
	Home equity	64,110			25,535
	Commercial real estate	313,775			228,688
	Construction	23,895			16,559
		783,239			636,489
	Commercial business	115,321			111,154
	Consumer	28,702			25,372
	Total loans	927,262			773,015
	Allowance for loan losses	(10,346		)	(9,671		)
	Discount on purchased loans	(4,964		)	(340		)
	Deferred loan costs and fees, net	2,345			2,343
	Loans, net	$	914,297		$	765,347
Activity in Allowance for Loan Losses	'
	Activity in the allowance for loan losses for the three months ended March 31, 2014 and 2013 and allocation of the allowance to loan segments as of March 31, 2014 and December 31, 2013 follows:
		1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Unallocated			Total
		Residential			Equity			Real Estate				Business
		(In thousands)
	Three Months Ended March 31, 2014
	Allowance at December 31, 2013	$	2,835		$	247		$	2,608	$	303	$	2,416		$	574		$	688		$	9,671
	Provision (credit) for loan losses	70			21			320		111		173			49			(30		)	714
	Loans charged-off	(18		)	—			—		—		—			(21		)	—			(39		)
	Recoveries	—			—			—		—		—			—			—			—
	Allowance at March 31, 2014	$	2,887		$	268		$	2,928	$	414	$	2,589		$	602		$	658		$	10,346
	Three Months Ended March 31, 2013
	Allowance at December 31, 2012	$	2,725		$	316		$	1,343	$	106	$	565		$	313		$	182		$	5,550
	Provision (credit) for loan losses	(164		)	5			310		9		(89		)	56			737			864
	Loans charged-off	(93		)	—			—		—		—			(7		)	—			(100		)
	Recoveries	80			—			—		—		—			—			—			80
	Allowance at March 31, 2013	$	2,548		$	321		$	1,653	$	115	$	476		$	362		$	919		$	6,394
Allowance for Credit Losses on Financing Receivables	'
	Additional information pertaining to the allowance for loan losses at March 31, 2014 and December 31, 2013 is as follows:
		1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Unallocated			Total
		Residential			Equity			Real Estate				Business
		(In thousands)
	31-Mar-14
	Allowance related to impaired loans	$	—		$	—		$	—	$	—	$	—		$	—		$	—		—
	Allowance related to non-impaired loans	2,887			268			2,928		414		2,589			602			658			10,346
	Total allowance for loan losses	$	2,887		$	268		$	2,928	$	414	$	2,589		$	602		$	658		$	10,346
	Impaired loans	$	3,304		$	558		$	—	$	—	$	553		$	10		$	—		4,425
	Non-impaired loans	378,155			63,552			313,775		23,895		114,768			28,692			—			922,837
	Total loans	$	381,459		$	64,110		$	313,775	$	23,895	$	115,321		$	28,702		$	—		$	927,262
	31-Dec-13
	Allowance related to impaired loans	$	—		$	—		$	—	$	—	$	—		$	—		$	—		—
	Allowance related to non-impaired loans	2,835			247			2,608		303		2,416			574			688			9,671
	Total allowance for loan losses	$	2,835		$	247		$	2,608	$	303	$	2,416		$	574		$	688		$	9,671
	Impaired loans	$	3,118		$	36		—		$	—	$	—		$	—		$	—		3,154
	Non-impaired loans	362,589			25,499			228,688		16,559		111,154			25,372			—			769,861
	Total loans	$	365,707		$	25,535		$	228,688	$	16,559	$	111,154		$	25,372		$	—		$	773,015
Past Due Financing Receivables	'
	The following is a summary of past due and non-accrual loans, by loan class, at March 31, 2014 and December 31, 2013:
		30-59 Days			60-89 Days			Past Due 90		Total		Loans on
		Past Due			Past Due			Days or More		Past Due		Non-accrual
		(In thousands)
	March 31, 2014
	Real estate:
	1-4 family residential	$	—		$	608		$	981	$	1,589	$	2,736
	Home equity	284			—			540		824		558
	Commercial business	—			—			—		—		553
	Consumer	5			18			11		34		10
	Total	$	289		$	626		$	1,532	$	2,447	$	3,857
		30-59 Days			60-89 Days			Past Due 90		Total		Loans on
		Past Due			Past Due			Days or More		Past Due		Non-accrual
		(In thousands)
	December 31, 2013
	Real estate:
	1-4 family residential	$	1,426		$	196		$	828	$	2,450	$	1,706
	Home equity	—			—			36		36		36
	Total	$	1,426		$	196		$	864	$	2,486	$	1,742
Impaired Financing Receivables	'
	The following is a summary of information pertaining to impaired loans by loan segment at the dates indicated:
		Recorded			Unpaid			Related
		Investment			Principal			Allowance
					Balance
	March 31, 2014
	Impaired loans without a valuation allowance:
	Real estate:
	1-4 family residential	$	3,304		$	4,096		$	—
	Home equity	558			805			—
	Commercial business	553			610			—
	Consumer	10			10			—
	Total	$	4,425		$	5,521		$	—
	December 31, 2013
	Impaired loans without a valuation allowance:
	Real estate:
	1-4 family residential	$	3,118		$	3,893		$	—
	Consumer loans	36			36			—
	Total	$	3,154		$	3,929		$	—
	The following tables set forth information regarding average balances and interest income recognized on impaired loans by portfolio, for the periods indicated:
		Average			Interest
		Recorded			Income
		Investment			Recognized
	Three Months Ended March 31, 2014
	Real estate:
	1-4 family residential	$	3,250		$	34
	Home equity	297			4
	Commercial business	277			4
	Consumer	5			—
	Total	$	3,829		$	42
	Three Months Ended March 31, 2013
	Real estate:
	1-4 family residential	$	2,383		$	26
	Home equity	24			1
	Consumer	36			3
	Total	$	2,443		$	30
Financing Receivable Credit Quality Indicators	'
	The following tables present the Company’s loans by risk rating at March 31, 2014 and December 31, 2013:
		1-4 Family			Home			Commercial		Construction		Commercial			Consumer			Total
		Residential			Equity			Real Estate				Business						Loans
		(In thousands)
	31-Mar-14
	Loans rated 1 - 6	$	3,274		$	674		$	310,364	$	23,895	$	106,752		$	214		$	445,173
	Loans rated 7	1,824			833			2,324		—		8,563			3			13,547
	Loans rated 8 - 9	1,433			—			1,087		—		6			34			2,560
	Loans rated 10	693			—			—		—		—			—			693
	Loans not rated	374,235			62,603			—		—		—			28,451			465,289
		$	381,459		$	64,110		$	313,775	$	23,895	$	115,321		$	28,702		$	927,262
	31-Dec-13
	Loans rated 1 - 6	$	1,701		$	4,610		$	223,144	$	15,246	$	110,142		$	—		$	354,843
	Loans rated 7	468			—			2,339		—		12			—			2,819
	Loans rated 8 - 6	1,647			36			—		—		—			24			1,707
	Loans rated 10	693			—			—		—		—			—			693
	Loans not rated	361,198			20,889			3,205		1,313		1,000			25,348			412,953
		$	365,707		$	25,535		$	228,688	$	16,559	$	111,154		$	25,372		$	773,015

Interest_Rate_Swap_Agreements_

Interest Rate Swap Agreements (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Interest Rate Derivatives	'
	The table below presents information about derivative financial instruments not designated as hedging instruments at March 31, 2014 and and December 31, 2013.
		Derivative Gains				Derivative Losses
		Notional		Fair		Notional		Fair
		Amount		Value		Amount		Value
		(In thousands)
	31-Mar-14
	Economic hedges:
	Commercial loan level interest rate swap agreements	$	184,715	$	3,371	$	184,715	$	3,384
	Other contracts	8,853		6		7,955		16
	Total derivatives	$	193,568	$	3,377	$	192,670	$	3,400
	31-Dec-13
	Economic hedges:
	Commercial loan level interest rate swap agreements	$	171,747	$	2,482	$	171,747	$	2,379
	Other contracts	8,932		5		7,988		14
	Total derivatives	$	180,679	$	2,487	$	179,735	$	2,393

Deposits_Tables

Deposits (Tables)	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Schedule of Deposit Balances	'
	A summary of deposit balances, by type, is as follows:
		March 31,		December 31,
		2014		2013
		(In thousands)
	NOW and demand	$	242,544	$	118,648
	Regular savings	351,040		332,518
	Money market deposits	195,713		75,716
	Total non-certificate accounts	789,297		526,882
	Certificates of deposit	306,759		296,718
	Brokered deposits	20,705		91,623
	Total certificate accounts	327,464		388,341
	Total deposits	$	1,116,761	$	915,223
Schedule of Contractual Maturities of Deposits and Weighted Average Rate	'
	At March 31, 2014, the scheduled maturities of term certificate accounts, including brokered deposits, are as follows:
		Amount		Weighted
				Average
				Rate
		(Dollars in thousands)
	2015	$	244,180	0.82	%
	2016	39,032		1.56
	2017	29,589		1.4
	2018	10,927		1.18
	2019	3,736		1.12
		$	327,464	0.98	%

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	'
	Assets and liabilities measured at fair value on a recurring basis are summarized below:
		Level 1			Level 2			Level 3		Total
										Fair Value
		(In thousands)
	31-Mar-14
	Assets
	Securities available for sale:
	Debt securities	$	122,637		$	241,050		$	—	$	363,687
	Marketable equity securities	81,272			—			—		81,272
	Derivative assets	—			3,377			—		3,377
	Total assets	$	203,909		$	244,427		$	—	$	448,336
	Liabilities
	Derivative liabilities	$	—		$	3,400		$	—	$	3,400
	31-Dec-13
	Assets
	Trading assets	$	—		$	750		$	—	$	750
	Securities available for sale:
	Debt securities	128,202			232,869			—		361,071
	Marketable equity securities	80,235			—			—		80,235
	Derivative assets	—			2,487			—		2,487
	Total assets	$	208,437		$	236,106		$	—	$	444,543
	Liabilities
	Derivative liabilities	$	—		$	2,393		$	—	$	2,393
	Total liabilities	$	—		$	2,393		$	—	$	2,393
Fair Value Measurements, Nonrecurring	'
	The following tables summarize the fair value hierarchy used to determine each adjustment and the carrying value of the related individual assets:
		31-Mar-14					Three Months Ended March 31, 2014
		Level 1		Level 2	Level 3		Total Losses
		(In thousands)
	Impaired loans	$—		$—	$1,242		$18
Fair Value, by Balance Sheet Grouping	'
		Carrying			Fair Value
		Amount			Level 1			Level 2		Level 3		Total
		(In thousands)
	31-Mar-14
	Financial assets:
	Cash and cash equivalents	$	47,213		$	47,213		$	—	$	—	$	47,213
	Securities available for sale	444,959			203,909			241,050		—		444,959
	Federal Home Loan Bank stock	11,246			—			—		11,246		11,246
	Loans, net	914,297			—			—		919,572		919,572
	Accrued interest receivable	3,906			—			—		3,906		3,906
	Financial liabilities:
	Deposits	1,116,761			—			—		1,118,457		1,118,457
	Borrowings	195,000			—			196,913		—		196,913
	On-balance sheet derivative financial instruments:
	Interest rate swap agreements:
	Assets	3,371			—			3,371		—		3,371
	Liabilities	3,384			—			3,384		—		3,384
		Carrying			Fair Value
		Amount			Level 1			Level 2		Level 3		Total
		(In thousands)
	31-Dec-13
	Financial assets:
	Cash and cash equivalents	$	40,316		$	40,316		$	—	$	—	$	40,316
	Trading assets	750			—			750		—		750
	Securities available for sale	441,306			208,437			232,869		—		441,306
	Federal Home Loan Bank stock	10,766			—			—		10,766		10,766
	Loans, net	765,347			—			—		769,578		769,578
	Accrued interest receivable	4,290			—			—		4,290		4,290
	Financial liabilities:
	Deposits	915,223			—			—		917,121		917,121
	Borrowings	215,000			—			216,332		—		216,332
	On-balance sheet derivative financial instruments:
	Interest rate swap agreements:
	Assets	2,482			—			2,482		—		2,482
	Liabilities	2,379			—			2,379		—		2,379

Comprehensive_Income_Tables

Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Schedule of Accumulated Other Comprehensive Income (Loss)	'
	The components of accumulated other comprehensive income, included in equity, are as follows:
		March 31,			December 31,
		2014			2013
		(In thousands)
	Securities available for sale:
	Net unrealized gain	$	6,470		$	2,838
	Tax effect	(2,253		)	(855		)
	Net-of-tax amount	4,217			1,983
	Defined benefit pension plan:
	Unrecognized net actuarial gain	803			803
	Tax effect	(321		)	(321		)
	Net-of-tax amount	482			482
		$	4,699		$	2,465

Plan_of_Conversion_Details

Plan of Conversion (Details) (USD $)	0 Months Ended	3 Months Ended
	Mar. 06, 2014	Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'
Plan of conversion, shares issuable	27,772,500	'
Plan of conversion, shares issuable, share price	$10	'
Plan of conversion, employee stock ownership plan (ESOP), shares issuable	2,277,345	'
Plan of conversion, deferred finance costs, gross	'	$434,000
Plan of conversion, organization conversion costs	'	488,000
Plan of conversion, percentage of shares issuable attributable to Blue Hills Bank Foundation	2.50%	'
Cash contribution to Blue Hills Bank Foundation	$7,000,000	'

Basis_of_Presentation_and_Cons2

Basis of Presentation and Consolidation (Details)	3 Months Ended
	Mar. 31, 2014
Blue Hills Bank	'
Subsidiary or Equity Method Investee [Line Items]	'
Number of subsidiaries	2
Minimum	'
Subsidiary or Equity Method Investee [Line Items]	'
Allowance for credit losses, general component, loss period used in calculation	'3 years
Maximum	'
Subsidiary or Equity Method Investee [Line Items]	'
Allowance for credit losses, general component, loss period used in calculation	'5 years
1-4 Family Residential	'
Subsidiary or Equity Method Investee [Line Items]	'
Origination covenants, maximum loan-to-value ratio	80.00%

Acquisition_Narrative_Details

Acquisition - Narrative (Details) (USD $)	3 Months Ended		0 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Jan. 18, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014
			Nantucket Bank	Nantucket Bank	Nantucket Bank	Nantucket Bank
			bank_branch			Certificates of Deposit
Business Acquisition [Line Items]	'	'	'	'	'	'
Number of bank branches acquired	'	'	3	'	'	'
Purchase price	'	'	$10,300,000	'	'	'
Cash from acquisition	'	'	161,900,000	'	'	'
Business acquisition, transaction costs	'	'	'	775,000	583,000	'
Discount on purchased loans	'	'	4,773,000	'	'	'
Interest income attributable to accretion of discount on acquired loans	'	'	'	133,000	'	'
Amortization of core deposit intangible	353,000	0	'	353,000	'	'
Estimated fair value adjustment	'	'	'	'	'	137,000
Accretion expense	'	'	'	'	'	$57,000

Acquisition_Business_Acquisiti

Acquisition - Business Acquisition Table (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Jan. 18, 2014	Jan. 18, 2014	Jan. 18, 2014	Jan. 18, 2014	Jan. 18, 2014
In Thousands, unless otherwise specified			Nantucket Bank	Home Equity	Commercial Real Estate	Commercial Loan	Consumer Loan
				Nantucket Bank	Nantucket Bank	Nantucket Bank	Nantucket Bank
Assets acquired:	'	'	'	'	'	'	'
Cash	'	'	$161,900	'	'	'	'
Loans, gross	'	'	'	39,966	57,967	3,862	444
Loans	'	'	97,466	'	'	'	'
Discount on purchased loans	'	'	-4,773	'	'	'	'
Premises and equipment, net	'	'	10,762	'	'	'	'
Core deposit intangible	'	'	6,041	'	'	'	'
Goodwill	9,182	0	9,182	'	'	'	'
Accrued interest receivable	'	'	304	'	'	'	'
Total assets acquired	'	'	285,655	'	'	'	'
Deposits:	'	'	'	'	'	'	'
NOW and demand	'	'	107,241	'	'	'	'
Regular Savings	'	'	24,511	'	'	'	'
Money market deposits	'	'	113,764	'	'	'	'
Term certificates	'	'	29,085	'	'	'	'
Total deposits	'	'	274,601	'	'	'	'
Accrued expenses and other liabilities	'	'	741	'	'	'	'
Total liabilities assumed	'	'	275,342	'	'	'	'
Net purchase price	'	'	$10,313	'	'	'	'

Securities_Available_for_Sale_1

Securities Available for Sale - Available-for-sale Securities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt securities:	'	'
Amortized Cost	$362,714	$362,904
Gross Unrealized Gains	5,100	4,592
Gross Unrealized Losses	-4,127	-6,425
Fair Value	363,687	361,071
Marketable equity securities:	'	'
Amortized Cost	75,775	75,564
Gross Unrealized Gains	5,508	4,827
Gross Unrealized Losses	-11	-156
Fair Value	81,272	80,235
Available-for-sale securities:	'	'
Amortized Cost	438,489	438,468
Gross Unrealized Gains	10,608	9,419
Gross Unrealized Losses	-4,138	-6,581
Fair Value	444,959	441,306
U.S. Treasury	'	'
Debt securities:	'	'
Amortized Cost	125,096	131,781
Gross Unrealized Gains	165	145
Gross Unrealized Losses	-2,624	-3,724
Fair Value	122,637	128,202
Government-sponsored enterprises	'	'
Debt securities:	'	'
Amortized Cost	13,268	13,985
Gross Unrealized Gains	54	81
Gross Unrealized Losses	-60	-109
Fair Value	13,262	13,957
Government-sponsored mortgage-backed and collateralized mortgage obligations	'	'
Debt securities:	'	'
Amortized Cost	66,080	67,787
Gross Unrealized Gains	985	778
Gross Unrealized Losses	-715	-1,072
Fair Value	66,350	67,493
Privately issued commercial mortgage- backed securities	'	'
Debt securities:	'	'
Amortized Cost	23,710	22,828
Gross Unrealized Gains	70	127
Gross Unrealized Losses	-196	-281
Fair Value	23,584	22,674
Privately issued residential mortgage-backed securities	'	'
Debt securities:	'	'
Amortized Cost	2,913	3,021
Gross Unrealized Gains	548	362
Gross Unrealized Losses	0	0
Fair Value	3,461	3,383
SBA asset-backed securities	'	'
Debt securities:	'	'
Amortized Cost	9,581	9,787
Gross Unrealized Gains	0	0
Gross Unrealized Losses	-264	-393
Fair Value	9,317	9,394
Other asset-backed securities	'	'
Debt securities:	'	'
Amortized Cost	9,788	10,974
Gross Unrealized Gains	32	57
Gross Unrealized Losses	-11	-9
Fair Value	9,809	11,022
Total other mortgage- and asset-backed securities	'	'
Debt securities:	'	'
Amortized Cost	45,992	46,610
Gross Unrealized Gains	650	546
Gross Unrealized Losses	-471	-683
Fair Value	46,171	46,473
State and political	'	'
Debt securities:	'	'
Amortized Cost	21,524	15,628
Gross Unrealized Gains	307	218
Gross Unrealized Losses	-36	-107
Fair Value	21,795	15,739
Global	'	'
Marketable equity securities:	'	'
Amortized Cost	5,000	5,000
Gross Unrealized Gains	587	540
Gross Unrealized Losses	0	0
Fair Value	5,587	5,540
Domestic community	'	'
Marketable equity securities:	'	'
Amortized Cost	3,216	3,216
Gross Unrealized Gains	33	48
Gross Unrealized Losses	-11	-43
Fair Value	3,238	3,221
Global asset allocation	'	'
Marketable equity securities:	'	'
Amortized Cost	32,956	32,956
Gross Unrealized Gains	4,681	4,168
Gross Unrealized Losses	0	0
Fair Value	37,637	37,124
Diversified bonds	'	'
Marketable equity securities:	'	'
Amortized Cost	34,603	34,392
Gross Unrealized Gains	207	71
Gross Unrealized Losses	0	-113
Fair Value	34,810	34,350
Financial Services | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	42,807	42,193
Gross Unrealized Gains	1,757	1,696
Gross Unrealized Losses	-75	-218
Fair Value	44,489	43,671
Banks | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	14,578	12,535
Gross Unrealized Gains	901	889
Gross Unrealized Losses	-37	-74
Fair Value	15,442	13,350
Diversified Financials | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	13,624	14,023
Gross Unrealized Gains	553	557
Gross Unrealized Losses	-20	-52
Fair Value	14,157	14,528
Insurance and REITs | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	14,605	15,635
Gross Unrealized Gains	303	250
Gross Unrealized Losses	-18	-92
Fair Value	14,890	15,793
Other Corporate | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	47,947	44,920
Gross Unrealized Gains	1,182	1,128
Gross Unrealized Losses	-146	-512
Fair Value	48,983	45,536
Industrials | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	32,813	32,920
Gross Unrealized Gains	851	842
Gross Unrealized Losses	-85	-312
Fair Value	33,579	33,450
Utilities | Corporate debt securities	'	'
Debt securities:	'	'
Amortized Cost	15,134	12,000
Gross Unrealized Gains	331	286
Gross Unrealized Losses	-61	-200
Fair Value	$15,404	$12,086

Securities_Available_for_Sale_2

Securities Available for Sale - Schedule of Contractual Maturities of Securities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available-for-sale Securities, Amortized Cost Basis [Abstract]	'	'
Within 1 year	$5,796	'
After 1 year through 5 years	135,708	'
After 5 years through 10 years	95,612	'
After 10 years	13,526	'
Single Maturity Date, amortized cost basis	250,642	'
Mortgage- and asset-backed securities and collateralized mortgage obligations - Amortized Basis	112,072	'
Amortized Cost	362,714	362,904
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]	'	'
Within 1 year	5,826	'
After 1 year through 5 years	136,925	'
After 5 years through 10 years	94,684	'
After 10 years	13,731	'
Single Maturity Date	251,166	'
Mortgage- and asset-backed securities and collateralized mortgage obligations - Fair Value	112,521	'
Available-for-sale securities, total debt securities	$363,687	$361,071

Securities_Available_for_Sale_3

Securities Available for Sale - Available-for-sale Securities Unrealized Loss (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	($3,837)	($6,314)
Gross Unrealized Losses - More than twelve months	-301	-267
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	198,055	247,820
Fair Value - More than twelve months	10,743	8,018
Total debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-3,837	-6,175
Gross Unrealized Losses - More than twelve months	-290	-250
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	198,055	223,603
Fair Value - More than twelve months	10,288	7,494
U.S. Treasury	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-2,624	-3,724
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	111,923	117,043
Fair Value - More than twelve months	0	0
Government-sponsored enterprises	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-60	-109
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	3,970	3,920
Fair Value - More than twelve months	0	0
Government-sponsored mortgage-backed and collateralized mortgage obligations	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-658	-973
Gross Unrealized Losses - More than twelve months	-57	-99
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	32,813	37,265
Fair Value - More than twelve months	2,932	3,341
Privately issued commercial mortgage- backed securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-75	-130
Gross Unrealized Losses - More than twelve months	-121	-151
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	10,622	10,926
Fair Value - More than twelve months	5,830	4,153
SBA asset-backed securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-184	-393
Gross Unrealized Losses - More than twelve months	-80	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	8,460	8,499
Fair Value - More than twelve months	857	0
Other asset-backed securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-11	-9
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	2,478	7,809
Fair Value - More than twelve months	0	0
Total other mortgage- and asset-backed securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-270	-532
Gross Unrealized Losses - More than twelve months	-201	-151
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	21,560	27,234
Fair Value - More than twelve months	6,687	4,153
State and political	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-4	-107
Gross Unrealized Losses - More than twelve months	-32	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	1,097	5,904
Fair Value - More than twelve months	669	0
Total marketable equity securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	0	-139
Gross Unrealized Losses - More than twelve months	-11	-17
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	0	24,217
Fair Value - More than twelve months	455	524
Domestic community	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	0	-30
Gross Unrealized Losses - More than twelve months	-11	-13
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	0	2,767
Fair Value - More than twelve months	455	453
Diversified bonds	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	'	-109
Gross Unrealized Losses - More than twelve months	'	-4
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	'	21,450
Fair Value - More than twelve months	'	71
Financial Services | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-75	-218
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	9,290	8,619
Fair Value - More than twelve months	0	0
Banks | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-37	-74
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	2,699	1,773
Fair Value - More than twelve months	0	0
Diversified Financials | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-20	-52
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	2,495	1,380
Fair Value - More than twelve months	0	0
Insurance and REITs | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-18	-92
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	4,096	5,466
Fair Value - More than twelve months	0	0
Other Corporate | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-146	-512
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	17,402	23,618
Fair Value - More than twelve months	0	0
Industrials | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-85	-312
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	9,180	10,947
Fair Value - More than twelve months	0	0
Utilities | Corporate debt securities	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Loss [Abstract]	'	'
Gross Unrealized Losses - Less than twelve months	-61	-200
Gross Unrealized Losses - More than twelve months	0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'
Fair Value - Less than twelve months	8,222	12,671
Fair Value - More than twelve months	$0	$0

Securities_Available_for_Sale_4

Securities Available for Sale - Narrative (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Depreciation, percentage of amortized cost basis	2.00%	'
Gross Unrealized Losses - More than twelve months	$301	$267
Domestic community	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Depreciation, percentage of amortized cost basis	1.00%	'
Unrealized loss position, number of positions, more than twelve months	1	'
Gross Unrealized Losses - More than twelve months	$11	$13

Loans_and_The_Allowance_for_Lo2

Loans and The Allowance for Loan Loss - Summary of Loan balances (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	$927,262	$773,015	'	'
Allowance for loan losses	-10,346	-9,671	-6,394	-5,550
Discount on purchased loans	-4,964	-340	'	'
Deferred loan costs and fees, net	2,345	2,343	'	'
Loans, net	914,297	765,347	'	'
Real Estate	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	783,239	636,489	'	'
1-4 Family Residential	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	381,459	365,707	'	'
Allowance for loan losses	-2,887	-2,835	-2,548	-2,725
Home Equity	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	64,110	25,535	'	'
Allowance for loan losses	-268	-247	-321	-316
Commercial Real Estate	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	313,775	228,688	'	'
Allowance for loan losses	-2,928	-2,608	-1,653	-1,343
Construction	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	23,895	16,559	'	'
Allowance for loan losses	-414	-303	-115	-106
Commercial Business	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	115,321	111,154	'	'
Allowance for loan losses	-2,589	-2,416	-476	-565
Consumer	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Total loans	28,702	25,372	'	'
Allowance for loan losses	($602)	($574)	($362)	($313)

Loans_and_The_Allowance_for_Lo3

Loans and The Allowance for Loan Loss - Activity in Allowance for Loan Losses (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	$9,671	$5,550
Provision (credit) for loan losses	714	864
Loans charged-off	-39	-100
Recoveries	0	80
Allowance for Credit Losses, ending balance	10,346	6,394
1-4 Family Residential	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	2,835	2,725
Provision (credit) for loan losses	70	-164
Loans charged-off	-18	-93
Recoveries	0	80
Allowance for Credit Losses, ending balance	2,887	2,548
Home Equity	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	247	316
Provision (credit) for loan losses	21	5
Loans charged-off	0	0
Recoveries	0	0
Allowance for Credit Losses, ending balance	268	321
Commercial Real Estate	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	2,608	1,343
Provision (credit) for loan losses	320	310
Loans charged-off	0	0
Recoveries	0	0
Allowance for Credit Losses, ending balance	2,928	1,653
Construction	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	303	106
Provision (credit) for loan losses	111	9
Loans charged-off	0	0
Recoveries	0	0
Allowance for Credit Losses, ending balance	414	115
Commercial Business	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	2,416	565
Provision (credit) for loan losses	173	-89
Loans charged-off	0	0
Recoveries	0	0
Allowance for Credit Losses, ending balance	2,589	476
Consumer	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	574	313
Provision (credit) for loan losses	49	56
Loans charged-off	-21	-7
Recoveries	0	0
Allowance for Credit Losses, ending balance	602	362
Unallocated	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'
Allowance for Credit Losses, beginning balance	688	182
Provision (credit) for loan losses	-30	737
Loans charged-off	0	0
Recoveries	0	0
Allowance for Credit Losses, ending balance	$658	$919

Loans_and_The_Allowance_for_Lo4

Loans and The Allowance for Loan Loss - Additional Activity in Allowance for Loan Losses (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	$0	$0	'	'
Allowance related to non-impaired loans	10,346	9,671	'	'
Total allowance for loan losses	10,346	9,671	6,394	5,550
Impaired loans	4,425	3,154	'	'
Non-impaired loans	922,837	769,861	'	'
Total loans	927,262	773,015	'	'
1-4 Family Residential	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	2,887	2,835	'	'
Total allowance for loan losses	2,887	2,835	2,548	2,725
Impaired loans	3,304	3,118	'	'
Non-impaired loans	378,155	362,589	'	'
Total loans	381,459	365,707	'	'
Home Equity	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	268	247	'	'
Total allowance for loan losses	268	247	321	316
Impaired loans	558	36	'	'
Non-impaired loans	63,552	25,499	'	'
Total loans	64,110	25,535	'	'
Commercial Real Estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	2,928	2,608	'	'
Total allowance for loan losses	2,928	2,608	1,653	1,343
Impaired loans	0	0	'	'
Non-impaired loans	313,775	228,688	'	'
Total loans	313,775	228,688	'	'
Construction	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	414	303	'	'
Total allowance for loan losses	414	303	115	106
Impaired loans	0	0	'	'
Non-impaired loans	23,895	16,559	'	'
Total loans	23,895	16,559	'	'
Commercial Business	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	2,589	2,416	'	'
Total allowance for loan losses	2,589	2,416	476	565
Impaired loans	553	0	'	'
Non-impaired loans	114,768	111,154	'	'
Total loans	115,321	111,154	'	'
Consumer	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	602	574	'	'
Total allowance for loan losses	602	574	362	313
Impaired loans	10	0	'	'
Non-impaired loans	28,692	25,372	'	'
Total loans	28,702	25,372	'	'
Unallocated	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Allowance related to impaired loans	0	0	'	'
Allowance related to non-impaired loans	658	688	'	'
Total allowance for loan losses	658	688	919	182
Impaired loans	0	0	'	'
Non-impaired loans	0	0	'	'
Total loans	$0	$0	'	'

Loans_and_The_Allowance_for_Lo5

Loans and The Allowance for Loan Loss - Summary of Past Due and Non-accrual loans, by class (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$289	$1,426
60-89 Days Past Due	626	196
Past Due 90 Days or More	1,532	864
Total Past Due	2,447	2,486
Loans on Non-accrual	3,857	1,742
1-4 Family Residential	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	0	1,426
60-89 Days Past Due	608	196
Past Due 90 Days or More	981	828
Total Past Due	1,589	2,450
Loans on Non-accrual	2,736	1,706
Home Equity	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	284	0
60-89 Days Past Due	0	0
Past Due 90 Days or More	540	36
Total Past Due	824	36
Loans on Non-accrual	558	36
Commercial Business	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	0	'
60-89 Days Past Due	0	'
Past Due 90 Days or More	0	'
Total Past Due	0	'
Loans on Non-accrual	553	'
Consumer	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	5	'
60-89 Days Past Due	18	'
Past Due 90 Days or More	11	'
Total Past Due	34	'
Loans on Non-accrual	$10	'

Loans_and_The_Allowance_for_Lo6

Loans and The Allowance for Loan Loss - Summary of Impaired Loans (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	$4,425	$3,154
Unpaid Principal Balance	5,521	3,929
1-4 Family Residential	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	3,304	3,118
Unpaid Principal Balance	4,096	3,893
Home Equity	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	558	'
Unpaid Principal Balance	805	'
Commercial Business	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	553	'
Unpaid Principal Balance	610	'
Consumer	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	10	36
Unpaid Principal Balance	$10	$36

Loans_and_The_Allowance_for_Lo7

Loans and The Allowance for Loan Loss - Summary of Average Recorded Investments and Interest Income of Impaired Loans (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	$3,829	$2,443
Interest Income Recognized	42	30
1-4 Family Residential	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	3,250	2,383
Interest Income Recognized	34	26
Home Equity	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	297	24
Interest Income Recognized	4	1
Commercial Business	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	277	'
Interest Income Recognized	4	'
Consumer	'	'
Financing Receivable, Impaired [Line Items]	'	'
Average Recorded Investment	5	36
Interest Income Recognized	$0	$3

Loans_and_The_Allowance_for_Lo8

Loans and The Allowance for Loan Loss - Summary of Loan by Risk Rating (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	$927,262	$773,015
1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	381,459	365,707
Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	64,110	25,535
Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	313,775	228,688
Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	23,895	16,559
Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	115,321	111,154
Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	28,702	25,372
Loans rated 1 - 6	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	445,173	354,843
Loans rated 1 - 6 | 1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	3,274	1,701
Loans rated 1 - 6 | Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	674	4,610
Loans rated 1 - 6 | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	310,364	223,144
Loans rated 1 - 6 | Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	23,895	15,246
Loans rated 1 - 6 | Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	106,752	110,142
Loans rated 1 - 6 | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	214	0
Loans rated 7	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	13,547	2,819
Loans rated 7 | 1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	1,824	468
Loans rated 7 | Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	833	0
Loans rated 7 | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	2,324	2,339
Loans rated 7 | Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 7 | Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	8,563	12
Loans rated 7 | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	3	0
Loans rated 8 - 9	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	2,560	1,707
Loans rated 8 - 9 | 1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	1,433	1,647
Loans rated 8 - 9 | Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	36
Loans rated 8 - 9 | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	1,087	0
Loans rated 8 - 9 | Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 8 - 9 | Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	6	0
Loans rated 8 - 9 | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	34	24
Loans rated 10	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	693	693
Loans rated 10 | 1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	693	693
Loans rated 10 | Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 10 | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 10 | Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 10 | Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans rated 10 | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	0
Loans not rated	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	465,289	412,953
Loans not rated | 1-4 Family Residential	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	374,235	361,198
Loans not rated | Home Equity	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	62,603	20,889
Loans not rated | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	3,205
Loans not rated | Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	1,313
Loans not rated | Commercial Business	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	0	1,000
Loans not rated | Consumer	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total loans	$28,451	$25,348

Interest_Rate_Swap_Agreements_1

Interest Rate Swap Agreements (Details) (Not Designated as Hedging Instrument, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'
Derivative Asset, notional amount	$193,568	$180,679
Derivative Asset, fair value	3,377	2,487
Derivative Liability, notional amount	192,670	179,735
Derivative Liability, fair value	3,400	2,393
Interest Rate Swap	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative Asset, notional amount	184,715	171,747
Derivative Asset, fair value	3,371	2,482
Derivative Liability, notional amount	184,715	171,747
Derivative Liability, fair value	3,384	2,379
Other Contract	'	'
Derivatives, Fair Value [Line Items]	'	'
Derivative Asset, notional amount	8,853	8,932
Derivative Asset, fair value	6	5
Derivative Liability, notional amount	7,955	7,988
Derivative Liability, fair value	$16	$14

Deposits_Summary_of_Deposit_Ba

Deposits - Summary of Deposit Balances (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking and Thrift [Abstract]	'	'
NOW and demand	$242,544	$118,648
Regular savings	351,040	332,518
Money market deposits	195,713	75,716
Total non-certificate accounts	789,297	526,882
Certificates of deposit	306,759	296,718
Brokered deposits	20,705	91,623
Total certificate accounts	327,464	388,341
Total deposits	$1,116,761	$915,223

Deposits_Schedule_of_Contractu

Deposits - Schedule of Contractual Maturities (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Time Deposits, Fiscal Year Maturity [Abstract]	'	'
Amount - 2015	$244,180	'
Amount - 2016	39,032	'
Amount - 2017	29,589	'
Amount - 2018	10,927	'
Amount - 2019	3,736	'
Total certificate accounts	$327,464	$388,341
Weighted Average Rate of Time Deposits [Abstract]	'	'
Weighted Average Rate - 2015	0.82%	'
Weighted Average Rate - 2016	1.56%	'
Weighted Average Rate - 2017	1.40%	'
Weighted Average Rate - 2018	1.18%	'
Weighted Average Rate - 2019	1.12%	'
Weighted Average Rate	0.98%	'

Fair_Value_Measurements_Assets

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Trading assets	$0	$750
Debt securities	363,687	361,071
Marketable equity securities	81,272	80,235
Level 1	'	'
Assets	'	'
Trading assets	'	0
Level 2	'	'
Assets	'	'
Trading assets	'	750
Level 3	'	'
Assets	'	'
Trading assets	'	0
Recurring	'	'
Assets	'	'
Trading assets	'	750
Debt securities	363,687	361,071
Marketable equity securities	81,272	80,235
Derivative assets	3,377	2,487
Total assets	448,336	444,543
Liabilities	'	'
Derivative liabilities	3,400	2,393
Total liabilities	'	2,393
Recurring | Level 1	'	'
Assets	'	'
Trading assets	'	0
Debt securities	122,637	128,202
Marketable equity securities	81,272	80,235
Derivative assets	0	0
Total assets	203,909	208,437
Liabilities	'	'
Derivative liabilities	0	0
Total liabilities	'	0
Recurring | Level 2	'	'
Assets	'	'
Trading assets	'	750
Debt securities	241,050	232,869
Marketable equity securities	0	0
Derivative assets	3,377	2,487
Total assets	244,427	236,106
Liabilities	'	'
Derivative liabilities	3,400	2,393
Total liabilities	'	2,393
Recurring | Level 3	'	'
Assets	'	'
Trading assets	'	0
Debt securities	0	0
Marketable equity securities	0	0
Derivative assets	0	0
Total assets	0	0
Liabilities	'	'
Derivative liabilities	0	0
Total liabilities	'	$0

Fair_Value_Measurements_Assets1

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Total Losses	$18
Nonrecurring | Level 1	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	0
Nonrecurring | Level 2	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	0
Nonrecurring | Level 3	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	$1,242

Fair_Value_Measurements_Summar

Fair Value Measurements - Summary of Fair Value, Balance Sheet Grouping (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial assets:	'	'
Trading assets	$0	$750
Securities available for sale	444,959	441,306
Carrying Amount	'	'
Financial assets:	'	'
Cash and cash equivalents	47,213	40,316
Trading assets	'	750
Securities available for sale	444,959	441,306
Federal Home Loan Bank stock	11,246	10,766
Loans, net	914,297	765,347
Accrued interest receivable	3,906	4,290
Financial liabilities:	'	'
Deposits	1,116,761	915,223
Borrowings	195,000	215,000
Estimate of Fair Value Measurement	'	'
Financial assets:	'	'
Cash and cash equivalents	47,213	40,316
Trading assets	'	750
Securities available for sale	444,959	441,306
Federal Home Loan Bank stock	11,246	10,766
Loans, net	919,572	769,578
Accrued interest receivable	3,906	4,290
Financial liabilities:	'	'
Deposits	1,118,457	917,121
Borrowings	196,913	216,332
Level 1	'	'
Financial assets:	'	'
Cash and cash equivalents	47,213	40,316
Trading assets	'	0
Securities available for sale	203,909	208,437
Federal Home Loan Bank stock	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Financial liabilities:	'	'
Deposits	0	0
Borrowings	0	0
Level 2	'	'
Financial assets:	'	'
Cash and cash equivalents	0	0
Trading assets	'	750
Securities available for sale	241,050	232,869
Federal Home Loan Bank stock	0	0
Loans, net	0	0
Accrued interest receivable	0	0
Financial liabilities:	'	'
Deposits	0	0
Borrowings	196,913	216,332
Level 3	'	'
Financial assets:	'	'
Cash and cash equivalents	0	0
Trading assets	'	0
Securities available for sale	0	0
Federal Home Loan Bank stock	11,246	10,766
Loans, net	919,572	769,578
Accrued interest receivable	3,906	4,290
Financial liabilities:	'	'
Deposits	1,118,457	917,121
Borrowings	0	0
Interest Rate Swap | Carrying Amount	'	'
Financial liabilities:	'	'
Derivative assets	3,371	2,482
Derivative liabilities	3,384	2,379
Interest Rate Swap | Estimate of Fair Value Measurement	'	'
Financial liabilities:	'	'
Derivative assets	3,371	2,482
Derivative liabilities	3,384	2,379
Interest Rate Swap | Level 1	'	'
Financial liabilities:	'	'
Derivative assets	0	0
Derivative liabilities	0	0
Interest Rate Swap | Level 2	'	'
Financial liabilities:	'	'
Derivative assets	3,371	2,482
Derivative liabilities	3,384	2,379
Interest Rate Swap | Level 3	'	'
Financial liabilities:	'	'
Derivative assets	0	0
Derivative liabilities	$0	$0

Comprehensive_Income_Details

Comprehensive Income (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Accumulated other comprehensive income	$4,699	$2,465
Accumulated Net Unrealized Investment Gain (Loss)	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	6,470	2,838
Tax effect	-2,253	-855
Accumulated other comprehensive income	4,217	1,983
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss)	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'
Accumulated Other Comprehensive Income (Loss), before Tax	803	803
Tax effect	-321	-321
Accumulated other comprehensive income	$482	$482