United Financial Bancorp 10-K 13 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Mar. 05, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Trading Symbol	'UBNK	'	'
Entity Registrant Name	'United Financial Bancorp, Inc.	'	'
Entity Central Index Key	'0001405049	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	19,790,762	'
Entity Public Float	'	'	$287.60

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$26,497	$28,972
Interest-bearing deposits	20,744	1,707
Total cash and cash equivalents	47,241	30,679
Securities available for sale, at fair value	264,629	294,322
Securities held to maturity, at amortized cost (fair value of $111,715 at December 31, 2013 and $85,674 at December 31, 2012)	111,185	82,986
Loans held for sale	'	632
Loans, net of allowance for loan losses of $13,413 at December 31, 2013 and $12,089 at December 31, 2012	1,871,066	1,807,401
Other real estate owned	2,451	2,578
Accrued interest receivable	6,388	6,790
Deferred tax asset, net	14,961	20,178
Stock in the Federal Home Loan Bank of Boston	17,334	18,554
Premises and equipment, net	25,586	25,064
Bank-owned life insurance	54,583	52,876
Goodwill	40,992	39,852
Other assets	25,427	20,391
TOTAL ASSETS	2,481,843	2,402,303
Deposits:	'	'
Interest-bearing	1,604,484	1,540,873
Non-interest-bearing	342,000	307,302
Total deposits	1,946,484	1,848,175
Short-term borrowings	61,555	79,229
Long-term debt	142,252	133,969
Subordinated debentures	5,959	9,630
Escrow funds held for borrowers	4,856	4,315
Capitalized lease obligations	4,539	4,711
Accrued expenses and other liabilities	13,419	15,085
Total liabilities	2,179,064	2,095,114
Commitments and contingencies (Notes F and N)	'	'
Stockholders' equity:	'	'
Preferred stock, par value $0.01 per share, authorized 50,000,000 shares; none issued	'	'
Common stock, par value $0.01 per share, authorized 100,000,000 shares; shares issued: 24,266,428 at December 31, 2013 and December 31, 2012	243	243
Paid-in capital	271,643	272,822
Retained earnings	96,059	87,153
Treasury stock, at cost (4,486,750 shares at December 31, 2013 and 4,114,310 shares at December 31, 2012)	-64,075	-58,430
Accumulated other comprehensive income (loss), net of taxes	-1,091	5,401
Total stockholders' equity	302,779	307,189
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$2,481,843	$2,402,303

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Securities held to maturity, fair value	$111,715	$85,674
Loans, allowance for loan losses	$13,413	$12,089
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	24,266,428	24,266,428
Treasury stock, shares	4,486,750	4,114,310

Consolidated_Statements_of_Net

Consolidated Statements of Net Income (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest and dividend income:	'	'	'
Loans	$85,023	$60,401	$58,220
Investments	9,168	10,544	12,728
Other interest-earning assets	102	226	126
Total interest and dividend income	94,293	71,171	71,074
Interest expense:	'	'	'
Deposits	11,396	10,466	12,449
Short-term borrowings	84	60	123
Long-term debt	3,923	4,466	5,689
Total interest expense	15,403	14,992	18,261
Net interest income before provision for loan losses	78,890	56,179	52,813
Provision for loan losses	4,092	3,139	3,242
Net interest income after provision for loan losses	74,798	53,040	49,571
Non-interest income:	'	'	'
Fee income on depositors' accounts	6,357	5,922	5,554
Wealth management income	1,087	1,026	919
Income from bank-owned life insurance	2,063	1,825	1,642
Net gain on sales of loans	213	645	274
Net gain on sales/calls of securities	227	254	1
Impairment charges on securities	'	-202	-99
Other income	2,081	1,153	1,062
Total non-interest income	12,028	10,623	9,353
Non-interest expense:	'	'	'
Salaries and benefits	32,808	26,533	24,818
Occupancy expenses	5,779	3,771	3,317
Marketing expenses	2,157	1,654	1,797
Data processing expenses	5,780	4,600	3,970
Professional fees	2,567	1,886	2,174
ESOP plan termination expense	'	4,482	'
Merger related expenses	879	4,952	'
Branch closing expenses	987	'	'
FDIC insurance assessments	1,639	1,135	1,029
Tax credit funds	1,319	243	837
Other expenses	9,047	6,984	6,120
Total non-interest expense	62,962	56,240	44,062
Income (loss) before provision for income taxes	23,864	7,423	14,862
Provision for income tax expense	6,462	3,795	3,678
Net income	$17,402	$3,628	$11,184
Earnings per share:	'	'	'
Basic	$0.88	$0.24	$0.75
Diluted	$0.87	$0.24	$0.74
Weighted average shares outstanding:	'	'	'
Basic	19,779,667	15,234,896	14,929,714
Diluted	20,073,219	15,421,777	15,198,702
Dividends paid per share	$0.43	$0.38	$0.34

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]	'		'		'
Net income	$17,402		$3,628		$11,184
Unrealized gains/losses on securities:	'		'		'
Unrealized holding (losses) gains on available-for-sale securities	-10,421		-1,605		3,026
Reclassification adjustment for gains realized in income	-227	[1]	-89	[1]	-1	[1]
Net change in unrealized gains/losses	-10,648		-1,694		3,025
Tax effect	4,060		633		-1,198
Net of tax amount	-6,588		-1,061		1,827
Pension liability components:	'		'		'
Pension liability for retirement plans	-169		19		-61
Pension liability adjustment	243		-406		152
Net change in pension liability	74		-387		91
Tax effect	22		97		-24
Net of tax amount	96		-290		67
Total other comprehensive income (loss)	-6,492		-1,351		1,894
Comprehensive income	$10,910		$2,277		$13,078
[1]	Amounts are included in net gains on sales of securities in non-interest income on the consolidated statements of net income. Income tax expense associated with these reclassification adjustments was $87, $33 and $0 for the years ended December 31, 2013, 2012 and 2011, respectively.

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement Of Income And Comprehensive Income [Abstract]	'	'	'
Income tax expense through reclassification adjustments	$87	$33	$0

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)

Total

New England Bank [Member]

United Bank [Member]

Common Stock [Member]

Common Stock [Member]

Common Stock [Member]

Paid-In Capital [Member]

Paid-In Capital [Member]

Paid-In Capital [Member]

Retained Earnings [Member]

Unearned Compensation [Member]

Unearned Compensation [Member]

Treasury Stock [Member]

Treasury Stock [Member]

Treasury Stock [Member]

Accumulated Other Comprehensive Income (Loss) [Member]

In Thousands, except Share data

USD ($)

USD ($)

USD ($)

USD ($)

New England Bank [Member]

United Bank [Member]

USD ($)

New England Bank [Member]

United Bank [Member]

USD ($)

USD ($)

United Bank [Member]

USD ($)

New England Bank [Member]

United Bank [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Balances at Dec. 31, 2010

$222,576

'

'

$187

'

'

$180,322

'

'

$82,899

($10,750)

'

($34,940)

'

'

$4,858

Balances, shares at Dec. 31, 2010

'

'

'

16,109,106

'

'

'

'

'

'

'

'

'

'

'

'

Comprehensive income

13,078

'

'

'

'

'

'

'

'

11,184

'

'

'

'

'

1,894

Shares repurchased in connection with restricted stock forfeited for tax purposes

-403

'

'

'

'

'

'

'

'

'

'

'

-403

'

'

'

Shares repurchased in connection with restricted stock forfeited for tax purposes, shares

'

'

'

-26,411

'

'

'

'

'

'

'

'

'

'

'

'

Restricted shares forfeited

'

'

'

'

'

'

181

'

'

'

'

'

-181

'

'

'

Restricted shares forfeited, shares

'

'

'

-10,910

'

'

'

'

'

'

'

'

'

'

'

'

Cash paid for in the money stock options exercised

-2

'

'

'

'

'

-2

'

'

'

'

'

'

'

'

'

Excess tax benefit on stock compensation plans

91

'

'

'

'

'

91

'

'

'

'

'

'

'

'

'

Cancellation of shares for tax withholdings on options exercised

-55

'

'

'

'

'

-55

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with stock options exercised

89

'

'

'

'

'

-110

'

'

-11

'

'

210

'

'

'

Reissuance of treasury shares in connection with stock options exercised, shares

'

'

'

14,820

'

'

'

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with stock warrants exercised

426

'

'

'

'

'

'

'

'

-28

'

'

454

'

'

'

Reissuance of treasury shares in connection with stock warrants exercised, shares

'

'

'

35,091

'

'

'

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with restricted stock grants

'

'

'

'

'

'

-296

'

'

42

'

'

254

'

'

'

Reissuance of treasury shares in connection with restricted stock grants, shares

'

'

'

17,500

'

'

'

'

'

'

'

'

'

'

'

'

Cash dividends paid

-5,067

'

'

'

'

'

'

'

'

-5,067

'

'

'

'

'

'

Treasury stock purchases

-6,377

'

'

'

'

'

'

'

'

'

'

'

-6,377

'

'

'

Treasury stock purchases, shares

'

'

'

-426,299

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation

1,891

'

'

'

'

'

1,891

'

'

'

'

'

'

'

'

'

ESOP shares committed to be released

1,114

'

'

'

'

'

411

'

'

'

703

'

'

'

'

'

ESOP plan termination

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balances at Dec. 31, 2011

227,361

'

'

187

'

'

182,433

'

'

89,019

-10,047

'

-40,983

'

'

6,752

Balances, shares at Dec. 31, 2011

'

'

'

15,712,897

'

'

'

'

'

'

'

'

'

'

'

'

Comprehensive income

2,277

'

'

'

'

'

'

'

'

3,628

'

'

'

'

'

-1,351

Shares issued pursuant to the acquisition of NEBS

'

81,486

'

'

56

'

'

81,430

'

'

'

'

'

'

'

'

Shares issued pursuant to the acquisition of NEBS, shares

'

'

'

'

5,559,495

'

'

'

'

'

'

'

'

'

'

'

Shares repurchased in connection with restricted stock forfeited for tax purposes

-205

'

'

'

'

'

'

'

'

'

'

'

-205

'

'

'

Shares repurchased in connection with restricted stock forfeited for tax purposes, shares

'

'

'

-14,934

'

'

'

'

'

'

'

'

'

'

'

'

Restricted shares forfeited

'

'

'

'

'

'

151

'

'

'

'

'

-151

'

'

'

Restricted shares forfeited, shares

'

'

'

-11,000

'

'

'

'

'

'

'

'

'

'

'

'

Excess tax benefit on stock compensation plans

29

'

'

'

'

'

29

'

'

'

'

'

'

'

'

'

Cancellation of shares for tax withholdings on options exercised

-102

'

'

'

'

'

-102

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with stock options exercised

97

'

'

'

'

'

-259

'

'

-10

'

'

366

'

'

'

Reissuance of treasury shares in connection with stock options exercised, shares

'

'

'

26,596

'

'

'

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with restricted stock grants

'

'

'

'

'

'

-445

'

'

37

'

'

408

'

'

'

Reissuance of treasury shares in connection with restricted stock grants, shares

'

'

'

29,500

'

'

'

'

'

'

'

'

'

'

'

'

Cash dividends paid

-5,521

'

'

'

'

'

'

'

'

-5,521

'

'

'

'

'

'

Treasury stock purchases

-5,455

'

'

'

'

'

'

'

'

'

'

'

-5,455

'

'

'

Treasury stock purchases, shares

'

'

'

-357,415

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation

1,453

'

'

'

'

'

1,453

'

'

'

'

'

'

'

'

'

ESOP shares committed to be released

1,089

'

'

'

'

'

392

'

'

'

697

'

'

'

'

'

ESOP plan termination

4,482

198

4,482

'

'

'

'

2,161

5,579

'

'

9,350

'

-1,963

-10,447

'

ESOP plan termination, shares

'

'

-664,552

'

-128,469

-664,552

'

'

'

'

'

'

'

'

'

'

Balances at Dec. 31, 2012

307,189

'

'

243

'

'

272,822

'

'

87,153

'

'

-58,430

'

'

5,401

Balances, shares at Dec. 31, 2012

'

'

'

20,152,118

'

'

'

'

'

'

'

'

'

'

'

'

Comprehensive income

10,910

'

'

'

'

'

'

'

'

17,402

'

'

'

'

'

-6,492

Shares repurchased in connection with restricted stock forfeited for tax purposes

-270

'

'

'

'

'

'

'

'

'

'

'

-270

'

'

'

Shares repurchased in connection with restricted stock forfeited for tax purposes, shares

'

'

'

-16,736

'

'

'

'

'

'

'

'

'

'

'

'

Restricted shares forfeited

'

'

'

'

'

'

75

'

'

'

'

'

-75

'

'

'

Restricted shares forfeited, shares

'

'

'

-5,000

'

'

'

'

'

'

'

'

'

'

'

'

Excess tax benefit on stock compensation plans

73

'

'

'

'

'

73

'

'

'

'

'

'

'

'

'

Cancellation of shares for tax withholdings on options exercised

-685

'

'

'

'

'

-685

'

'

'

'

'

'

'

'

'

Reissuance of treasury shares in connection with stock options exercised

293

'

'

'

'

'

-1,687

'

'

'

'

'

1,980

'

'

'

Reissuance of treasury shares in connection with stock options exercised, shares

'

'

'

138,647

'

'

'

'

'

'

'

'

'

'

'

'

Cash dividends paid

-8,496

'

'

'

'

'

'

'

'

-8,496

'

'

'

'

'

'

Treasury stock purchases

-7,280

'

'

'

'

'

'

'

'

'

'

'

-7,280

'

'

'

Treasury stock purchases, shares

'

'

'

-489,351

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation

1,045

'

'

'

'

'

1,045

'

'

'

'

'

'

'

'

'

ESOP plan termination

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balances at Dec. 31, 2013

$302,779

'

'

$243

'

'

$271,643

'

'

$96,059

'

'

($64,075)

'

'

($1,091)

Balances, shares at Dec. 31, 2013

'

'

'

19,779,678

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated_Statements_of_Sto1

Consolidated Statements of Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash dividends paid, per share	$0.43	$0.38	$0.34
Retained Earnings [Member]	'	'	'
Cash dividends paid, per share	$0.43	$0.38	$0.34

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income	$17,402	$3,628	$11,184
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Provision for loan losses	4,092	3,139	3,242
ESOP expense	'	5,769	1,114
Stock-based compensation	1,045	1,453	1,891
Excess tax benefits on stock compensation plan	-73	-29	-91
Amortization of premiums and discounts	2,655	2,209	1,654
Depreciation and amortization	2,854	1,865	1,320
Amortization of intangible assets	759	179	101
Provision for other real estate owned	'	'	130
Loans originated for sale	-7,498	-18,127	-11,267
Proceeds from sales of loans held for sale	8,343	18,193	11,488
Net gain on sales of loans	-213	-645	-274
Net loss on sale and writedown of other real estate owned	420	573	48
Net gain on sale of property and equipment	'	-7	'
Net gain on sale/call of available for sale securities	-227	-254	-1
Impairment charges on securities	'	202	99
Deferred tax provision (benefit)	9,299	-1,186	-4,199
Net increase in cash surrender value of bank-owned life insurance	-1,707	-1,622	-1,508
Decrease (increase) in accrued interest receivable	402	-35	59
(Increase) decrease in other assets	-6,935	-1,138	1,371
(Decrease) increase in accrued expenses and other liabilities	-1,281	3,457	917
Net cash provided by (used in) operating activities	29,337	17,624	17,278
Cash flows from investing activities:	'	'	'
Purchases of securities available for sale	-58,911	-97,785	-82,614
Proceeds from sales of securities available for sale	3,007	6,216	'
Proceeds from calls, maturities and principal repayments of securities available for sale	73,326	69,899	66,253
Purchases of securities held to maturity	-51,240	-1,455	-13,432
Proceeds from maturities, calls and principal repayments of securities held to maturity	22,236	33,143	28,780
Redemption of Federal Home Loan Bank of Boston stock	1,220	911	'
Proceeds from sales of other real estate owned	3,086	2,053	1,843
Net loan originations, purchases and principal repayments	-71,136	-145,295	-52,525
Purchases of property and equipment	-3,362	-4,570	-2,180
Cash provided by business combination	'	68,908	'
Proceeds from sale of property and equipment	'	85	'
Purchases of bank-owned life insurance	'	'	-10,000
Net cash used in investing activities	-81,774	-67,890	-63,875
Cash flows from financing activities:	'	'	'
Net increase in deposits	98,309	21,206	86,674
Net change in short-term borrowings	-17,674	36,135	-3,769
Proceeds from issuance of long-term debt	51,474	24,759	10,440
Repayment of long-term debt, net of amortization of discount	-42,862	-51,255	-56,799
Redemption of trust preferred securities	-4,000	'	'
Net increase in escrow funds held for borrowers	541	163	204
Payments on capitalized lease obligation	-424	-424	-406
Excess tax benefits on stock compensation plans	73	29	91
Cancellation of shares for tax withholdings on options exercised	-685	-102	-55
Reissuance of treasury shares in connection with restricted stock warrants	'	'	426
Reissuance of treasury shares in connection with stock options exercised	293	97	89
Treasury stock purchases	-7,550	-5,660	-6,780
Cash paid for in the money stock options exercised	'	'	-2
Cash dividends paid	-8,496	-5,521	-5,067
Net cash provided by (used in) financing activities	68,999	19,427	25,046
Increase (decrease) in cash and cash equivalents	16,562	-30,839	-21,551
Cash and cash equivalents at beginning of year	30,679	61,518	83,069
Cash and cash equivalents at end of year	47,241	30,679	61,518
Cash paid during the period:	'	'	'
Interest on deposits and other borrowings	18,741	16,021	19,020
Income taxes - net	2,532	2,460	5,073
Non-cash items:	'	'	'
Transfer of loans to other real estate owned	3,379	1,679	2,539
Trade date accounting for securities purchased	'	'	-3,002
Transfer of treasury shares to pay-off ESOP loan	'	12,410	'
In conjunction with the purchase acquisition detailed in Note C to the Consolidated Financial Statements:	'	'	'
Fair value of assets acquired, net of cash acquired	'	676,888	'
Goodwill and core deposit	'	35,390	'
Fair value of liabilities assumed	'	664,310	'
Shares issued	'	$81,430	'

Summary_of_Significant_Account

Summary of Significant Accounting Policies	15 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	NOTE A – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	The consolidated financial statements include the accounts of United Financial Bancorp, Inc. and its wholly-owned subsidiary, United Bank (the “Bank”). UCB Securities, Inc. and UCB Securities, Inc. II are subsidiaries of the Bank and are engaged in buying, selling and holding of securities. UB Properties, LLC and VB REO, LLC are subsidiaries of the Bank formed to hold real estate assets acquired through foreclosure. All significant intercompany accounts and transactions have been eliminated in consolidation. These entities are collectively referred to herein as the “Company”.
	The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America (“U.S. GAAP”) and general practices within the banking industry.
	Use of Estimates
	In preparing consolidated financial statements in conformity with U.S. GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change are the determination of the allowance for loan losses, other-than-temporary impairment of securities, goodwill, fair value of financial instruments, and income taxes.
	The following is a description of the Company’s more significant accounting policies:
	Cash and Cash Equivalents
	The Company classifies cash and due from banks, interest-bearing deposits in other banks and overnight funds sold as cash and cash equivalents as these liquid assets have maturities at date of purchase of 90 days or less.
	Investment Securities
	Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and recorded at amortized cost. Securities that are held principally for the purpose of trading in the near term are classified as “trading securities.” Trading securities are carried at fair value, with unrealized gains and losses recognized in earnings. Securities not classified as held to maturity or trading, including equity securities with readily determinable fair values, are classified as “available for sale” and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income.
	Purchase premiums and discounts are recognized in interest income using the level yield method over the terms of the securities. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.
	Each reporting period, the Company evaluates all securities classified as available-for-sale or held-to-maturity with a decline in fair value below the amortized cost of the investment to determine whether or not the impairment is deemed to be other-than-temporary (“OTTI”).
	OTTI is required to be recognized if (1) the Company intends to sell the security; (2) it is “more likely than not” that the Company will be required to sell the security before recovery of its amortized cost basis; or (3) for debt securities, the present value of expected cash flows is not sufficient to recover the entire amortized cost basis. Marketable equity securities are evaluated for OTTI based on the severity and duration of the impairment and, if deemed to be other-than-temporary, the declines in fair value are reflected in earnings as realized losses. For impaired debt securities that the Company intends to sell, or more likely than not will be required to sell, the full amount of the depreciation is recognized as OTTI through earnings. For all other impaired debt securities, credit-related OTTI is recognized through earnings and non-credit related OTTI is recognized in other comprehensive income, net of applicable taxes.
	Federal Home Loan Bank stock
	The Company, as a member of the Federal Home Loan Bank of Boston (the “FHLBB”), is required to maintain an investment in capital stock of the FHLBB. Based on redemption provisions of the FHLBB, the stock has no quoted market value and is carried at cost. At its discretion, the FHLBB may declare dividends on the stock. Management reviews its investment in FHLBB stock for other-than-temporary impairment based upon an assessment of the ultimate recoverability of the par value. Management concluded that no other-than-temporary impairment charge was necessary as of December 31, 2013.
	Significant Group Concentrations of Credit Risk
	A substantial portion of the Company’s loans are secured by real estate in Hampden, Hampshire and Worcester Counties of Massachusetts and Hartford, Tolland and New Haven Counties of Connecticut. Accordingly, the ultimate collectability of the Company’s loan portfolio is susceptible to changing conditions in these market areas. Note E discusses the types of lending that the Company engages in. The Company does not have any significant concentrations in any one industry or customer.
	Loans
	The Company’s loan portfolio includes commercial and industrial (“C&I”), commercial real estate, construction, business banking C&I and commercial real estate, residential real estate, home equity and consumer segments. Loans are stated at their unpaid principal balance net of unearned loan fees and costs and the allowance for loan losses.
	Interest on most loans is included in income as earned based upon interest rates applied to unpaid principal using the simple interest method. Accrual of interest on loans is discontinued when in the judgment of management the collectibility of principal or interest becomes doubtful or when a loan becomes contractually past due 90 days with respect to principal or interest. Past due status is based on the contractual terms of the loan. The accrual of interest on residential mortgage loans, however, may continue even though they are 90 days past due if management deems it appropriate, provided that the loans are well secured and in the process of collection. In all cases, loans are placed on non-accrual or charged-off at an earlier date if collection of principal or interest is considered doubtful.
	When a loan is placed on non-accrual status, all interest previously accrued is reversed against current period interest income. Interest subsequently received on non-accrual loans is either applied against principal or recorded as income based on management’s judgment as to the collectibility of principal. Interest accruals are resumed on such loans only when they are brought fully current as to principal and interest and when, in the judgment of management, the loans are estimated to be fully collectible.
	Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount is amortized over the contractual term of the loan as an adjustment of yield. In addition, discounts related to fair value adjustments for loan receivables acquired in a business combination or asset purchase are accreted into earnings over the contractual term as an adjustment of yield. If acquired loans experience credit quality deterioration after acquisition, the Company evaluates the difference between the contractually required payments at acquisition and the cash flows expected to be collected. Changes in the expected cash flows from the date of acquisition will impact the accretable yield and may also result in a charge to the provision for loan losses to the extent the cash flow shortfall is greater than the non-accretable amount.
	Allowance for Loan Losses
	The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The adequacy of the allowance for loan losses is evaluated on a quarterly basis by management. Factors considered in evaluating the adequacy of the allowance include prior loss experience, current economic conditions and their effect on borrowers, the composition and size of the loan portfolio, trends in nonperforming loans, classified assets, and delinquency rates and the performance of individual loans in relation to contractual terms. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, 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. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent.
	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 restructure (“TDR”). This usually includes a modification of loan terms, such as a reduction of the interest rate to below market terms, capitalizing past due interest or extending the maturity date or a partial forgiveness of debt. Restructured loans are returned to accrual status after the borrower demonstrates the ability to pay under the restructured terms through a sustained period of repayment performance, which is generally six months. All TDRs are initially classified as impaired.
	The allowance consists of specific, general and unallocated components, as further described below.
	Specific component
	The specific component relates to loans that are classified as impaired. A specific allowance is established when the discounted cash flows (or collateral value) of the impaired loan is lower than the carrying value of the loan. Groups of smaller balance homogenous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual residential real estate, home equity and consumer loans for impairment disclosures, unless such loans are subject to a troubled debt restructuring agreement.
	The Company has established a Business Banking unit within its Commercial Lending Department. The portfolio is made up of both commercial and industrial loans less than $250 and commercial real estate loans less than $500 which are managed by exception. This grouping of loans is considered a homogenous pool of loans and collectively evaluated for impairment. Accordingly, the Company does not separately identify individual loans within this unit for impairment disclosures, unless such loans are subject to a troubled debt restructuring agreement.
	General component
	The general component is based on historical loss experience adjusted for qualitative factors stratified by the following loan segments: C&I, commercial real estate, construction, business banking C&I and commercial real estate, residential real estate, home equity and consumer. Management uses an average of historical losses based on a time frame appropriate to capture relevant loss data for each loan class. This historical loss factor for each loan class is adjusted for the following qualitative factors: the levels/trends in delinquencies and non-accruals; levels and trends in charge-offs and recoveries; trends in volume and terms of loans; effects of changes in risk selection and underwriting standards and other changes in lending policies, procedures and practices; experience, ability and depth of lending management and staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentrations. This analysis establishes factors that are applied to each loan class to determine the amount of the general component of the allowance for loan losses. There were no changes in the Company’s policies or methodology pertaining to the general component of the allowance for loan losses during 2013.
	The qualitative factors are determined based on the various risk characteristics of each loan segment. Relevant risk characteristics are as follows:
	Commercial and industrial loans (including business banking) – Loans in these segments are made to businesses. Generally these loans are secured by assets of the business and repayment is expected from the cash flows of the business. A weakened economy, and resultant decreased consumer and/or business spending, may have an effect on the credit quality in these loan segments.
	Commercial real estate (including business banking) – Loans in these segments include income-producing investment properties and owner-occupied real estate used for business purposes. The underlying properties are generally located in our primary market area. The cash flows of the income-producing investment properties may be adversely impacted by a downturn in the economy as vacancy rates may increase, which in turn, will have an effect on credit quality. Generally management obtains annual financial information for borrowers with loans in excess of $250 in these segments. In the case of owner-occupied real estate used for business purposes, a weakened economy and resultant decreased consumer and/or business spending may have an adverse effect on credit quality.
	Construction loans – Loans in this segment primarily include land loans to local individuals, contractors and developers for developing the land for sale or for making improvements thereon. Repayment is derived from sale of the lots/units including any pre-sold units. Credit risk is affected by market conditions, time to sell at an adequate price, whether initial estimates of value are accurate and cost overruns. To a lesser extent this class includes commercial development projects we finance which in most cases have an interest-only phase during construction and then convert to permanent financing. Credit risk is affected by cost overruns, market conditions and the availability of permanent financing, to the extent such permanent financing is not being provided by us.
	Residential real estate – Loans in this segment are made to and secured by one- to four-family owner-occupied residential real estate and repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan class. The Company generally does not originate loans with a loan-to-value ratio greater than 95 percent and does not originate subprime loans.
	Home equity loans – Loans in this segment are made to and secured by one- to four-family owner occupied residential real estate and repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan segment.
	Consumer loans – Loans in this segment may be either secured or unsecured and repayment is dependent on the credit quality of the individual borrower and, if applicable, sale of the collateral securing the loan (such as automobile or mobile home). The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan segment.
	Loans acquired with evidence of credit quality deterioration since origination and for which it is probable at purchase that the Company will be unable to collect all contractually required payments are accounted for as required by and in accordance with the Receivables Topic of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), “Loans and Debt Securities Acquired with Deteriorating Credit Quality” (ASC 310). Evidence of credit quality deterioration as of the purchase date may include statistics such as past due status, refreshed borrower credit scores and refreshed loan-to-value (“LTV”), some of which are not immediately available as of the purchase date. The Company continues to evaluate this information and other credit-related information as it becomes available. ASC 310 addresses accounting for differences between contractual cash flows and cash flows expected to be collected from the Company’s initial investment in loans if those differences are attributable, at least in part, to credit quality.
	The initial fair values for loans within the scope of ASC 310 are determined by discounting both principal and interest cash flows expected to be collected using an observable discount rate for similar instruments with adjustments that management believes a market participant would consider in determining fair value. The Company estimates the cash flows expected to be collected at acquisition using internal credit risk, interest rate and prepayment risk models that incorporate management’s best estimate of current key assumptions, such as default rates, loss severity and payment speeds.
	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.
	Reserve for Unfunded Commitments
	The Company also maintains a reserve for unfunded credit commitments to provide for the risk of loss inherent in these arrangements. The reserve is determined using a methodology similar to the analysis of the allowance for loan losses, taking into consideration probabilities of future funding requirements. The reserve for unfunded commitments is included in other liabilities and was $142 and $213 at December 31, 2013 and 2012.
	Goodwill
	Goodwill is measured as the excess of the cost of a business acquisition over the sum of the amounts assigned to identifiable tangible and intangible assets acquired less liabilities assumed. Goodwill is not amortized but is assessed for impairment annually or more frequently if circumstances warrant.
	Management has the option of first assessing qualitative factors, such as events and circumstances, to determine whether it is more likely than not, meaning a likelihood of more than 50%, that the value of a reporting unit is less than its carrying amount. If, after considering all relevant events and circumstances, management determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing an impairment test is unnecessary. For the year ended December 31, 2013, management determined that it was not more likely than not that the fair value of the reporting unit (the consolidated Company) was less than its carrying amount. If management had determined otherwise, the following two-step process would have been completed to determine the impairment and necessary write-down of goodwill.
	The first step (“Step 1”) is used to identify potential impairment, and involves comparing the reporting unit’s estimated fair value to its carrying amount, including goodwill. If the estimated fair value of the reporting unit exceeds its carrying amount, goodwill is not deemed to be impaired. Should the carrying amount of the reporting unit exceed its estimated fair value, an indicator of impairment is deemed to exist and a second step is performed to measure the amount of such impairment, if any. The second step (“Step 2”) involves calculating the implied fair value of goodwill. The implied fair value of goodwill is determined in a manner similar to how the amount of goodwill is determined in a business combination (i.e. by measuring the excess of the estimated fair value, as determined in Step 1, over the aggregate estimated fair values of the individual assets, liabilities, and identifiable intangibles as of the impairment testing date). If the implied fair value of goodwill exceeds the carrying amount of goodwill assigned to the reporting unit, no impairment exists. If the carrying amount of goodwill exceeds the implied fair value of the goodwill, an impairment loss is recorded in an amount equal to such excess. An impairment loss cannot exceed the carrying amount of goodwill, and the loss (write-down) establishes a new carrying amount for the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Application of the goodwill impairment test requires significant judgments including estimation of future cash flows, which are dependent on internal forecasts, estimation of the long-term rate of growth, the period over which cash flows will occur, and determination of our cost of capital. Changes in these estimates and assumptions could materially affect the determination of fair value and/or conclusions related to goodwill impairment.
	Business Segments
	As a community oriented financial institution, substantially all of the Company’s operations involve the delivery of loan and deposit products to customers. Management makes operating decisions and assesses performance based on an ongoing review of these community-banking operations, which constitutes the Company’s only operating segment for financial reporting purposes.
	Bank-owned Life Insurance
	Bank-owned life insurance policies are reflected on the consolidated balance sheets at cash surrender value net of any deferred fees or loans. Changes in the net cash surrender value of the policies, as well as insurance proceeds received, are reflected in non-interest income on the consolidated statements of net income and are not subject to income taxes.
	Off-balance Sheet Financial Instruments
	In the ordinary course of business, the Company enters into off-balance sheet financial instruments, consisting primarily of credit related financial instruments. These financial instruments are recorded in the consolidated financial statements when they are funded or related fees are incurred or received.
	Earnings Per Share
	Basic earnings per share have been calculated by dividing net income by weighted average shares outstanding before any dilution and adjusted to exclude the weighted average number of unallocated shares held by the United Bank Employee Stock Ownership Plan (the “ESOP”). Diluted earnings per share have been calculated by dividing net income by weighted average shares outstanding after giving effect to the potential dilution that could occur if potential common shares were converted into common stock using the treasury stock method.
	Other Real Estate Owned
	Other real estate owned (“OREO”) is comprised of properties acquired through foreclosure proceedings or acceptance of a deed in lieu of foreclosure. OREO is held for sale and is initially recorded at fair value, less cost to sell, at the date of foreclosure, establishing a new cost basis. Losses arising from the acquisition of such properties are charged against the allowance for loan losses. Operating expenses are charged to current period operations as incurred. Gains and losses upon disposition are reflected in income as realized.
	Foreclosed assets held for sale are recorded at the lower of fair value less estimated costs to sell or cost. Subsequent changes in the fair value of the foreclosed assets are reflected through a valuation allowance.
	Premises and Equipment
	Land is carried at cost. Buildings and equipment are stated at cost less accumulated depreciation. Depreciation is computed for financial reporting purposes on the straight-line method over the estimated useful life of each type of asset. Leasehold improvements are amortized on the straight-line method over the shorter of the lease term, including consideration of renewal options, or the estimated useful life of the asset. The cost of maintenance and repairs is charged against income as incurred. The Company reviews for possible impairment of long-lived assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable.
	Transfers of Financial Assets
Transfers of an entire financial asset, a group of entire financial assets, or a participating interest in an entire financial asset are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets.
During the normal course of business, the Company may transfer a portion of a financial asset, for example, a participation loan or the government guaranteed portion of a loan. In order to be eligible for sales treatment, the transfer of the portion of the loan must meet the criteria of a participating interest. If it does not meet the criteria of a participating interest, the transfer must be accounted for as a secured borrowing. In order to meet the criteria for a participating interest, all cash flows from the loan must be divided proportionately, the rights of each loan holder must have the same priority, the loan holders must have no recourse to the transferor other than standard representations and warranties and no loan holder has the right to pledge or exchange the entire loan.
Securities Sold Under Agreements to Repurchase
The Company accounts for securities sold under agreements to repurchase as secured borrowings as the Company maintains effective control over the transferred assets. Securities sold under agreements to repurchase are reflected at the amount of cash received in connection with the transaction. The Company may be required to provide additional collateral based on the fair value of the underlying securities.
Retirement Benefits
The Company has established a defined contribution plan for eligible employees. The Company matches employee contributions up to 5% of an employee’s qualified compensation.
In 2007, the Company established an unfunded Supplemental Executive Retirement Plan (“SERP”) for certain employees that provides benefits that cannot be paid from a qualified retirement plan due to Internal Revenue Code restrictions. This plan is nonqualified under the Internal Revenue Code and assets used to fund benefit payments are not segregated from other assets of the Company. Therefore, in general, a participant’s or beneficiary’s claim to benefits under these plans is as a general creditor. The Company recognizes the plan’s un-funded status as a liability with an offsetting adjustment to Accumulated Other Comprehensive Income (“AOCI”) to the extent not previously recognized in earnings. Actuarial gains and losses and prior service costs or credits are recognized as a component of AOCI.
As part of the acquisition of New England Bancshares, Inc. (further described in Note B), the Company assumed a defined benefit multi-employer pension plan. Disclosures for this plan are provided in Note M.
Income Taxes
The Company recognizes income taxes under the asset and liability method. Under this method, deferred tax assets and liabilities are established for the tax consequences attributable to the temporary differences between the financial statement carrying amount and the tax bases of the Company’s assets and liabilities and certain tax carryforwards at enacted tax rates.
The provision for deferred income taxes is the result of changes in deferred tax assets and liabilities. A valuation allowance is recorded against deferred tax assets when management deems a portion of the asset to be more likely than not unrealizable. The Company’s valuation allowance is reviewed and adjustments are made to the valuation allowance based on management’s judgments relating to the realizability of the deferred tax asset. It is management’s belief that it is more likely than not that the reversal of deferred tax liabilities and results of future operations will generate sufficient taxable income to realize the deferred tax assets. Therefore, no valuation allowance was necessary at December 31, 2013 or 2012 for deferred tax assets.
The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate resolution. The Company reports interest and penalties associated with tax obligations in other non-interest expense. The Company does not have any uncertain tax positions at December 31, 2013 and 2012 which require accrual or disclosure.
The Company’s income tax returns are subject to review and examination by federal and state taxing authorities. The Company is currently open to audit under the applicable statutes of limitations by the Internal Revenue Service for the years ended December 31, 2010 through 2013. The years open to examination by state taxing authorities vary by jurisdiction. No years prior to 2010 are open.
Stock Compensation Plan
Share-based compensation costs are based on the grant date fair value and these costs are recognized over the requisite vesting period. For all of our stock option grants, the fair value of each grant was estimated at the date of grant using the Black-Scholes option pricing model. Black-Scholes utilizes assumptions related to volatility, the risk-free interest rate, the dividend yield and employee exercise behavior. Expected volatilities utilized in the model are based on the historic volatility of the Company’s stock price. The risk free interest rate is derived from the U.S. Treasury Yield curve in effect at the time of the grant. The model incorporates exercise and post-vesting forfeiture assumptions based on an analysis of historical data.
Employee Stock Ownership Plan
The Company’s ESOP was terminated on December 31, 2012. Prior to this, compensation expense for the ESOP was recorded at an amount equal to the shares allocated by the ESOP multiplied by the average fair market value of the shares during the period. The Company recognized compensation expense ratably over the year based upon the Company’s estimate of the number of shares expected to be allocated by the ESOP. Unearned compensation applicable to the ESOP was reflected as a reduction of stockholders’ equity in the consolidated balance sheets. The difference between the average fair market value and the cost of the shares allocated by the ESOP was recorded as an adjustment to additional paid-in capital. Cash dividends received on shares held in suspense were applied to the scheduled annual debt payment.
Treasury Stock
Common stock shares repurchased are recorded as treasury stock at cost.
Comprehensive Income
Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities, are reported as a separate component of stockholders’ equity, such items, along with net income, are components of comprehensive income.
The components of accumulated other comprehensive income (loss) are as follows:
December 31, 2013:	Gross		Tax		Net of
	Amount		Effect		Tax
Unrealized loss on securities available for sale	$	-501	$	213	$	-288
Pension liability		-1,358		555		-803
Total accumulated other comprehensive loss	$	-1,859	$	768	$	-1,091
December 31, 2012:	Gross		Tax		Net of
	Amount		Effect		Tax
Unrealized gain on securities available for sale	$	10,147	$	-3,847	$	6,300
Pension liability		-1,432		533		-899
Total accumulated other comprehensive income	$	8,715	$	-3,314	$	5,401
Advertising Costs
Advertising costs are expensed as incurred.
Reclassifications
Amounts reported for prior periods are reclassified as necessary to be consistent with the current-period presentation.
Recent Accounting Pronouncements
In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This Update requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, entities are required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line item of net income. The Company adopted this ASU in the first quarter of 2013 and there was no impact on the Company’s consolidated financial results as the amendments relate only to disclosures in the consolidated financial statements.
In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (a consensus of the FASB Emerging Issues Task Force). This Update provides that an unrecognized tax benefit, or a portion thereof, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from disallowance of a tax position, or the tax law does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented as a liability. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Company does not expect that the adoption of this ASU will have an impact on the Company’s consolidated financial statements.
In January 2014, the FASB issued ASU No. 2014-01, Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. This update eliminates the effective yield election and permits reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The amendments in this ASU should be applied retrospectively to all periods presented. The amendments in this ASU are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. The Company is currently evaluating the impact of adopting this ASU, but does not expect that it will have a material effect on the Company’s consolidated financial statements.
In January 2014, the FASB issued ASU No. 2014-04, Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments in this Update clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this Update are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. The Company is currently evaluating the impact if adopting this ASU, but does not expect that it will have a material effect on the Company’s consolidated financial statements.

Mergers

Mergers	15 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Mergers	'
	NOTE B – MERGERS
	On November 15, 2013, the Company and Rockville Financial, Inc. (“Rockville Financial”), the parent company of Rockville Bank (“Rockville Bank”), announced the signing of a definitive agreement under which Rockville Financial will acquire the Company in an all-stock transaction valued at $369,000, based on the closing price of Rockville Financial common stock of $13.62 on November 14, 2013.
	Under the terms of the definitive merger agreement, the Company’s shareholders will receive 1.3472 shares of Rockville Financial common stock for each share of the Company’s common stock. Upon closing, Rockville Financial shareholders will own approximately 49% of stock in the combined company and United Financial Bancorp, Inc. shareholders will own approximately 51%.
	The transaction, which has been approved by the boards of directors of both the Company and Rockville Financial, is expected to close by mid-year 2014. The transaction is subject to approval by shareholders from both companies, regulatory approval and other customary closing conditions.
	On November 16, 2012, the Company acquired New England Bancshares, Inc. (“NEBS”), the holding company for New England Bank. The transaction qualified as a tax-free reorganization for federal income tax purposes. The final consideration paid in the transaction to stockholders of NEBS consisted of 5,559,495 shares of United Financial common stock and $2,337 in cash, including $2,318 paid to holders of options to purchase NEBS shares. Based upon the Company’s $14.24 per share closing price on November 16, 2012, the transaction was valued at approximately $81,504.
	The Company recorded merger and acquisition expenses associated with the aforementioned transactions of $879 and $4,952, during the years ended December 31, 2013 and 2012, respectively.
	The Company accounted for the aforementioned NEBS transaction using the acquisition method pursuant to FASB ASC 805 “Business Combinations” (ASC 805). The Company’s results of operations include NEBS from the date of acquisition. Additionally, ASC 805 requires an acquirer to recognize the assets acquired and the liabilities assumed at fair value 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:
	Cash	$	68,926
	Investments		53,430
	Loans		553,983
	Premises and equipment		5,985
	Goodwill		31,660
	Core deposit intangible		3,730
	Other real estate owned		1,471
	Other assets		26,629
	Total Assets Acquired		745,814
	Liabilities:
	Deposits		596,994
	Borrowings		63,533
	Other liabilities		3,783
	Total Liabilities Assumed		664,310
	Net Assets Acquired	$	81,504
	As noted above, the Company acquired loans with a fair value of $553,983. Included in this amount was $9,911 of loans with evidence of deterioration of credit quality since origination for which it was probable, at the time of the acquisition, that the Company would be unable to collect all contractually required payments receivable. In accordance with the “Loans and Debt Securities Acquired with Deteriorating Credit Quality” section of FASB ASC 310 “Receivables,” the Company recorded a non-accretable credit discount of $2,870, which is defined as the loan’s contractually required payments receivable in excess of the amount of its cash flows expected to be collected. The Company considered factors such as payment history, collateral values, and accrual status when determining whether there was evidence of deterioration of loan’s credit quality at the acquisition date. As of December 31, 2013 and 2012, the carrying amount of these loans with evidence of credit deterioration at the acquisition date was $4,457 and $7,024 and the remaining non-accretable discount was $1,243 and $2,870, respectively.

Restrictions_on_Cash_and_Amoun

Restrictions on Cash and Amounts Due from Banks	15 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Restrictions on Cash and Amounts Due from Banks	'
	NOTE C – RESTRICTIONS ON CASH AND AMOUNTS DUE FROM BANKS
	The Company is required to maintain average balances on hand or with the Federal Reserve Bank. At December 31, 2013 and 2012, these reserve balances amounted to $4,012 and $6,990, respectively.

Investment_Securities

Investment Securities	15 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Investment Securities	'
	NOTE D – INVESTMENT SECURITIES
	The amortized cost and fair values of securities classified as available for sale and held to maturity are as follows:
		Amortized		Unrealized
		Cost		Gain		Losses		Fair Value
	Securities Available for Sale
	December 31, 2013:
	Debt Securities:
	Government-sponsored enterprises	$	2,099	$	-	$	-248	$	1,851
	Government-sponsored and government- guaranteed mortgage-backed securities		236,004		4,836		-4,386		236,454
	Municipal bonds		25,902		269		-1,453		24,718
	Corporate bonds		1,125		481		-		1,606
	Total	$	265,130	$	5,586	$	(6,087)	$	264,629
	Securities Available for Sale
	December 31, 2012:
	Debt Securities:
	Government-sponsored enterprises	$	3,234	$	2	$	-3	$	3,233
	Government-sponsored and government- guaranteed mortgage-backed securities		248,370		9,836		-444		257,762
	Private label mortgage-backed securities		2,568		54		-56		2,566
	Municipal bonds		28,713		595		-481		28,827
	Corporate bonds		1,290		644		-		1,934
	Total	$	284,175	$	11,131	$	-984	$	294,322
		Amortized		Unrealized
		Cost		Gain		Losses		Fair Value
	Securities Held to Maturity
	December 31, 2013:
	Government-sponsored and government- guaranteed mortgage-backed securities	$	78,686	$	1,130	$	-767	$	79,049
	Private label mortgage-backed securities		50		1		-		51
	Industrial revenue bonds		26,361		-		-		26,361
	State of Israel bonds		175		-		-		175
	Municipal bonds		5,913		166		-		6,079
	Total	$	111,185	$	1,297	$	-767	$	111,715
	Securities Held to Maturity
	December 31, 2012:
	Government-sponsored and government- guaranteed mortgage-backed securities	$	57,986	$	2,214	$	-	$	60,200
	Private label mortgage-backed securities		79		2		-		81
	Industrial revenue bonds		18,847		-		-		18,847
	State of Israel bonds		150		-		-		150
	Municipal bonds		5,924		472		-		6,396
	Total	$	82,986	$	2,688	$	-	$	85,674
	The Company’s portfolio of mortgage-backed securities, which represent interests in pools of residential mortgage loans, consists of securities issued by the Federal Home Loan Mortgage Corporation (Freddie Mac), the Federal National Mortgage Association (Fannie Mae), and the Government National Mortgage Association (Ginnie Mae), all of which are federal government owned or sponsored agencies.
	As of December 31, 2013, the Bank has pledged securities with an amortized cost of $124,699 and a fair value of $126,347 to secure municipal deposits, reverse repurchase agreements, treasury, tax and loan deposits at the Federal Reserve Bank of Boston and customers’ repurchase agreements. Additionally, there is a blanket lien on certain securities to collateralize borrowings from the FHLBB, as discussed further in Note H.
	Gross unrealized losses and fair values at December 31, 2013 and 2012 aggregated by investment category and the length of time that individual securities have been in a continuous unrealized loss position follow:
		Less than 12 months				12 months or longer				Total
		Fair Value		Unrealized		Fair Value		Unrealized		Number of		Fair Value		Unrealized
				Losses				Losses		Securities				Losses
	2013:00:00
	Securities Available for Sale
	Debt Securities:
	Government-sponsored enterprises	$	1,851	$	-248	$	-	$	-		5	$	1,851	$	-248
	Government-sponsored and government- guaranteed mortgage-backed securities		101,067		-3,206		32,066		-1,180		132		133,133		-4,386
	Municipal bonds		8,208		-476		10,963		-977		47		19,171		-1,453
	Total	$	111,126	$	(3,930)	$	43,029	$	(2,157)		184	$	154,155	$	(6,087)
	Securities Held to Maturity
	Government-sponsored and government- guaranteed mortgage-backed securities	$	36,488	$	-767	$	-	$	-		10	$	36,488	$	-767
	Total	$	36,488	$	-767	$	-	$	-		10	$	36,488	$	-767
		Less than 12 months				12 months or longer				Total
		Fair Value		Unrealized		Fair Value		Unrealized		Number of		Fair Value		Unrealized
				Losses				Losses		Securities				Losses
	2012:00:00
	Securities Available for Sale
	Debt Securities:
	Government-sponsored enterprises	$	1,998	$	-3	$	-	$	-		5	$	1,998	$	-3
	Government-sponsored and government- guaranteed mortgage-backed securities		41,537		-444		-		-		81		41,537		-444
Private label mortgage-backed securities		1,671		-56		-		-		9		1,671		-56
Municipal bonds		16,293		-481		-		-		38		16,293		-481
Total	$	61,499	$	-984	$	-	$	-		133	$	61,499	$	-984
There were no securities classified as held to maturity in an unrealized loss position as of December 31, 2012.
Management evaluated the securities in the preceding tables and has determined that no declines in the fair value of the Company’s security portfolio are deemed to represent other-than-temporary impairment (“OTTI”) as of December 31, 2013. In 2012, management recognized a pre-tax, non-cash OTTI charge of $165 for on a corporate bond. Management based its assessment on the issuer’s credit rating, credit outlook, payment status and financial condition, the length of time the bond had been in a loss position, the size of the loss position and other meaningful information. The OTTI charge was credit related and charged to earnings, with no amount recognized in other comprehensive income. Management has concluded that no other securities have experienced impairments that are other-than-temporary.
In its evaluation, management considered the types of securities, including if the securities were U.S. Government issued, the credit rating on the securities, credit outlook, payment status and financial condition, the length of time the bond has been in a loss position, the size of the loss position, our intent and ability to hold the securities to expected recovery of value and other meaningful information. The Company does not intend to sell any impaired debt securities and is unlikely to be required to sell any impaired security before its maturity or market price recovery.
Realized gains and losses and the proceeds from sales of securities available for sale are as follows for the years ended December 31:
	2013		2012		2011
Proceeds from sales/calls	$	6,262	$	7,846	$	2,500
Gross gains		309		267		1
Gross losses		-82		-13		-
The scheduled maturities of debt securities held to maturity and available for sale at December 31, 2013, are shown below. Actual maturities will differ from contractual maturities because issuers generally have the right to call or prepay obligations with or without call or prepayment penalties.
	At December 31, 2013
	Securities				Securities Held to
	Available for Sale				Maturity
	Amortized		Fair Value		Amortized		Fair Value
	Cost				Cost
Due in one year or less	$	-	$	-	$	125	$	125
Due from one year to five years		2,096		2,155		810		843
Due from five years to ten years		15,870		15,237		1,534		1,582
Due after ten years		11,160		10,783		29,980		30,065
		29,126		28,175		32,449		32,615
Mortgage-backed securities		236,004		236,454		78,736		79,100
	$	265,130	$	264,629	$	111,185	$	111,715
Maturities are based on the final contractual payment dates, and do not reflect the impact of potential prepayments or early redemptions. Such securities have been classified within the category that represents the final maturity date.

Loans_Net

Loans, Net	15 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Loans, Net	'
	NOTE E – LOANS, NET
	The components of loans are as follows at December 31:
			2013		2012
	Commercial:
	Commercial and industrial		$	293,094	$	306,192
	Commercial real estate			862,596		814,692
	Construction			62,811		52,778
	Consumer:
	Residential real estate			466,604		441,874
	Home equity			179,502		179,039
	Consumer			17,232		21,501
	Total loans			1,881,839		1,816,076
	Net deferred loan costs and fees			2,640		3,414
	Allowance for loan losses			-13,413		-12,089
	Loans, net		$	1,871,066	$	1,807,401
	The Company’s lending activities are conducted principally in Hampden, Hampshire and Worcester counties of Massachusetts and Hartford, Tolland and New Haven counties of Connecticut. The Company originates single family and multi-family residential loans, commercial real estate loans, commercial loans, and a variety of consumer loans. In addition, the Company grants loans for the construction of residential homes, multi-family properties and commercial real estate properties. Most loans originated by the Company are collateralized by real estate. The Company also from time-to-time purchases commercial loans secured by real estate. The ability and willingness of the single family residential, commercial and consumer borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity within the borrowers’ geographic areas and real estate values. The ability and willingness of commercial real estate and construction loan borrowers to honor their repayment commitments is generally dependent on the health of the real estate economic sector in the borrowers’ geographic areas and the general economy.
	The Company has transferred a portion of its originated commercial real estate, construction and commercial and industrial loans to participating lenders. The amounts transferred have been accounted for as sales and are therefore not included in the Company’s accompanying consolidated balance sheets. The Company and participating lenders share ratably in any gains or losses that may result from a borrower’s lack of compliance with contractual terms of the loan. The Company continues to service the loans on behalf of the participating lenders and, as such, collects cash payments from the borrowers, remits payments (net of servicing fees) to participating lenders and disburses required escrow funds to relevant parties. At December 31, 2013 and 2012, the Company was servicing loans for participants aggregating $81,036 and $57,722, respectively.
	As of December 31, 2013 and 2012, there were two transfers of financial assets that do not meet the requirement of a participating interest and are accounted for as secured borrowings in the amount of $2,589 and $2,444, respectively. Secured borrowings are accounted for as long-term debt on the consolidated balance sheets.
	Certain officers and directors of the Company and certain corporations and individuals related to such persons, incurred indebtedness, in the form of loans, as customers. These loans were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other customers unrelated to the Company and did not involve more than the normal risk of collectibility.
	The following table summarizes the Company’s lending activity with its directors and executive officers all of which was conducted with terms consistent with those offered to unrelated parties:
			December 31,
			2013		2012
	Beginning balance		$	3,305	$	2,230
	New loans			361		1,670
	Repayments			-487		-595
	Ending balance		$	3,179	$	3,305
	In 2013 and 2012, the Company recognized proceeds of $8,343 and $18,193, respectively, from sales of residential mortgage loans originated for the purpose of selling them in the secondary market. Loans serviced by the Company for others totaled $87,372 and $98,155 at December 31, 2013 and 2012, respectively. The balances of mortgage servicing rights related to such loans were not material to the consolidated financial statements at December 31, 2013 and 2012.
	A summary of the activity pertaining to the allowance for loan losses for the years ended December 31, 2013, 2012 and 2011 is as follows:
			Commercial		Commercial			Construction		Business Banking
			and Industrial		Real Estate					Commercial		Commercial		Residential		Home		Consumer		Unallocated		Total
										and		Real Estate				Equity
										Industrial
	Balance at December 31, 2010		$	2,801	$	5,000		$	668	$	-	$	-	$	740	$	623	$	155	$	-	$	9,987
	Charge-offs			-1,556		-589			-78		-		-		-139		-24		-6		-		-2,392
	Recoveries			235		52			3		-		-		-		-		5		-		295
	Provision (credit)			1,966		1,109			267		-		-		65		-125		-40		-		3,242
	Balance at December 31, 2011			3,446		5,572			860		-		-		666		474		114		-		11,132
	Charge-offs			-637		-870			-127		-128		-52		-246		-225		-79		-		-2,364
	Recoveries			125		45			1		2		-		-		-		9		-		182
	Provision (credit)			-254		750			-24		914		758		182		134		39		640		3,139
	Balance at December 31, 2012			2,680		5,497			710		788		706		602		383		83		640		12,089
	Charge-offs			-839		-1,349			-		-123		-122		-389		-89		-67		-		-2,978
	Recoveries			25		90			-		-		-		60		6		29		-		210
	Provision (credit)			1,189		2,070			385		-11		-51		532		74		18		-114		4,092
	Balance at December 31, 2013		$	3,055	$	6,308		$	1,095	$	654	$	533	$	805	$	374	$	63	$	526	$	13,413
	Further information pertaining to the allowance for loan losses at December 31, 2013 and 2012 is as follows:
										Business Banking
			Commercial		Commercial			Construction		Commercial		Commercial		Residential		Home Equity		Consumer		Unallocated		Total
			and Industrial		Real Estate					and		Real Estate
										Industrial
	At December 31, 2013:
	Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired		$	28	$	-		$	99	$	-	$	-	$	-	$	-	$	-	$	-	$	127
	Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment		$	3,027	$	6,308		$	996	$	654	$	533	$	805	$	374	$	63	$	526	$	13,286
	Financing Receivables:
	Total loans		$	261,692	$	787,103		$	62,811	$	31,402	$	75,493	$	466,604	$	179,502	$	17,232	$	-	$	1,881,839
	Loans individually evaluated for impairment and deemed to be impaired		$	4,107	$	8,212		$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	12,319
	Loans not deemed to be impaired and collectively evaluated for impairment		$	257,353	$	777,660		$	62,532	$	31,402	$	75,493	$	466,604	$	179,502	$	17,232	$	-	$	1,867,778
	Loans acquired with deteriorated credit quality and deemed to be impaired		$	232	$	1,231		$	279	$	-	$	-	$	-	$	-	$	-	$	-	$	1,742
										Business Banking
			Commercial		Commercial			Construction		Commercial		Commercial		Residential		Home Equity		Consumer		Unallocated		Total
			and Industrial		Real Estate					and		Real Estate
										Industrial
	At December 31, 2012:
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired		$	32	$	-		$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	32
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment		$	2,648	$	5,497		$	710	$	788	$	706	$	602	$	383	$	83	$	640	$	12,057
Financing Receivables:
Total loans		$	272,789	$	732,272		$	52,778	$	33,403	$	82,420	$	441,874	$	179,039	$	21,501	$	-	$	1,816,076
Loans individually evaluated for impairment and deemed to be impaired		$	5,943	$	3,882		$	591	$	-	$	-	$	-	$	-	$	-	$	-	$	10,416
Loans not deemed to be impaired and collectively evaluated for impairment		$	266,091	$	722,470		$	51,838	$	33,403	$	82,420	$	441,874	$	179,039	$	21,501	$	-	$	1,798,636
Loans acquired with deteriorated credit quality and deemed to be impaired		$	755	$	5,920		$	349	$	-	$	-	$	-	$	-	$	-	$	-	$	7,024
The following is a summary of past due loans at December 31, 2013 and 2012:
		30-59 Days		60-89 Days			90 Days or		Total		Current		Total		90 Days
		Past Due		Past Due			More Past		Past Due				Financing		or More
							Due						Receivables		Past Due
															and
															Accruing
At December 31, 2013:
Commercial:
Commercial and industrial		$	2,696	$	753		$	2,431	$	5,880	$	287,214	$	293,094	$	-
Commercial real estate			6,169		2,841			4,909		13,919		848,677		862,596		-
Construction			160		116			279		555		62,256		62,811		-
Consumer:
Residential real estate			8,292		2,525			3,180		13,997		452,607		466,604		-
Home equity			1,074		239			1,157		2,470		177,032		179,502		-
Consumer			329		129			64		522		16,710		17,232		-
Total		$	18,720	$	6,603		$	12,020	$	37,343	$	1,844,496	$	1,881,839	$	-
At December 31, 2012:
Commercial:
Commercial and industrial		$	3,974	$	1,155		$	4,442	$	9,571	$	296,621	$	306,192	$	-
Commercial real estate			6,326		1,136			5,351		12,813		801,879		814,692		-
Construction			2,853		-			-		2,853		49,925		52,778		-
Consumer:
Residential real estate			11,760		2,450			2,615		16,825		425,049		441,874		-
Home equity			1,044		161			137		1,342		177,697		179,039		-
Consumer			329		35			120		484		21,017		21,501		-
Total		$	26,286	$	4,937		$	12,665	$	43,888	$	1,772,188	$	1,816,076	$	-
The following is a summary of impaired loans at December 31, 2013 and 2012:
		At December 31, 2013							At December 31, 2012
		Recorded		Unpaid			Related		Recorded		Unpaid		Related
		Investment		Principal			Allowance		Investment		Principal		Allowance
				Balance							Balance
With no related allowance recorded:
Commercial:
Commercial and industrial		$	3,449	$	3,471				$	6,666	$	6,997
Commercial real estate			9,443		10,842					9,802		10,736
Construction			-		-					940		940
Consumer:
Residential real estate			-		-					-		-
Home Equity			-		-					-		-
Consumer			-		-					-		-
Total		$	12,892	$	14,313				$	17,408	$	18,673
With an allowance recorded:
Commercial and industrial			890		890		$	28		32		32	$	32
Commercial real estate			-		-			-		-		-		-
Construction			279		279			99		-		-		-
Total		$	1,169	$	1,169		$	127	$	32	$	32	$	32
Total impaired loans		$	14,061	$	15,482		$	127	$	17,440	$	18,705	$	32
Loans acquired from NEBS and CNB Financial Corp. (“CNB Financial”) that are impaired at December 31, 2013 and 2012, are included in the above table.
The following summaries of information pertaining to impaired and non-accrual loans:
		Year Ended December 31, 2013							Year Ended December 31, 2012
		Average		Interest Income					Average		Interest Income
		Recorded							Recorded
		Investment							Investment
		on							on
		Impaired							Impaired
		Loans		Recognized			Recognized		Loans		Recognized		Recognized
							on a Cash						on a Cash
							Basis						Basis
Commercial:
Commercial and industrial		$	5,985	$	512		$	332	$	4,725	$	21	$	21
Commercial real estate			6,864		181			10		4,158		72		17
Construction			693		7			-		735		25		-
Consumer:
Residential real estate			-		39			39		-		5		5
Home Equity			-		9			9		-		-		-
Consumer			-		2			2		-		1		1
Total		$	13,542	$	750		$	392	$	9,618	$	124	$	44
		Year Ended December 31, 2011
		Average		Interest Income
		Recorded
		Investment
		on
		Impaired
		Loans		Recognized			Recognized
							on a Cash
							Basis
Commercial:
Commercial and industrial		$	3,580	$	36		$	36
Commercial real estate			4,370		152			147
Construction			1,011		40			28
Consumer:
Residential real estate			1,536		63			63
Home Equity			82		7			7
Consumer			94		7			7
Total		$	10,673	$	305		$	288
No additional funds are committed to be advanced in connection with impaired and non-accrual loans.
The following is a summary of non-accrual loans as of December 31, 2013 and 2012:
		December 31,
		2013		2012
Commercial:
Commercial and industrial		$	2,663	$	5,538
Commercial real estate			8,640		5,596
Construction			279		349
Consumer:
Residential real estate			3,212		2,970
Home equity			1,157		137
Consumer			64		120
Total		$	16,015	$	14,710
The following represents modifications that were deemed to be troubled debt restructures for the years ended December 31, 2013 and 2012:
		Number of		Outstanding Recorded Investment
		Contracts		Pre-Modification			Post-Modification
Troubled Debt Restructurings
For the Year Ended December 31, 2013:
Commercial and industrial			3	$	2,013		$	1,580
Commercial real estate			2		2,452			2,742
Total			5	$	4,465		$	4,322
For the Year Ended December 31, 2012:
Commercial and industrial			1	$	140		$	140
Commercial real estate			4		1,211			1,211
Construction			2		613			613
Total			7	$	1,964		$	1,964
In 2013, the modifications provided are to three unrelated commercial borrowers. One of the restructures was part of an agreement with the customer whereby the Bank received a cash paydown, the maturity was extended and the interest rate was lowered. In the second restructure, the maturity was extended and the interest rate was lowered. In the third restructure, debt was consolidated, new monies were extended to pay taxes and the maturity was extended.
In 2012, the modifications provided on one commercial and industrial loan and four commercial real estate loans are related to one borrower relationship. The modification extended the maturity of demand notes that had reached maturity. The modifications provided on the two construction loans are related to one borrower relationship. The modification extended the maturity of demand notes that had reached maturity. Management performs a discounted cash flow calculation to determine the amount of impaired reserve required on each of the troubled debt restructures. Any reserve required is recorded through the provision for loan losses.
As of December 31, 2013 and 2012, there have been no TDRs that have subsequently defaulted (defined as thirty or more days past due) within one year of modification.
At December 31, 2013, the Bank was committed to advance an additional $41 on TDR loans.
CREDIT QUALITY INFORMATION
The Company utilizes a nine grade risk rating system for commercial and industrial, commercial real estate and construction loans as follows:
Pass: Loans in these five categories are considered low to average risk.
Special Mention: Loans in this category portray one or more weaknesses that may be tolerated in the short run. Assets in this category are currently protected but show signs of potential weakness and are being closely monitored by management.
Substandard: Loans in this category are considered inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged. There is a distinct possibility that the Company will sustain some loss if the weakness is not corrected.
Doubtful: Loans in this category have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make the collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable. The possibility of loss is extremely high, however, its classification as an estimated loss is deferred until a more exact determination of the extent of the loss is ascertained.
Loss: Loans in this category are considered uncollectible and of such little value that their continuance as loans is not warranted.
The Company does not assign risk ratings to residential real estate, home equity and consumer loans unless they are contractually past due 90 days or more or where legal action has commenced against the borrower. All other consumer loans are charged off when they become contractually past due 120 days. Those loans not assigned a rating are considered “pass”.
On an annual basis, or more often if needed, the Company formally reviews the ratings on all commercial and industrial, commercial real estate and construction loans. Semi-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.
The following table presents the Company’s loan class by internally assigned grades:
		At December 31, 2013
		Commercial &		Commercial			Construction		Total
		Industrial		Real Estate
Commercial:
Grade:
Pass		$	268,359	$	811,192		$	58,263	$	1,137,814
Special Mention			6,175		24,185			1,428		31,788
Substandard			18,495		27,219			3,120		48,834
Doubtful			65		-			-		65
Total		$	293,094	$	862,596		$	62,811	$	1,218,501
		Residential		Home Equity			Consumer		Total
Consumer:
Grade:
Pass		$	463,392	$	178,344		$	17,168	$	658,904
Special Mention			-		-			-		-
Substandard			3,212		1,158			64		4,434
Doubtful			-		-			-		-
Total		$	466,604	$	179,502		$	17,232	$	663,338
		At December 31, 2012
		Commercial &		Commercial			Construction		Total
		Industrial		Real Estate
Commercial:
Grade:
Pass		$	275,279	$	762,240		$	46,196	$	1,083,715
Special Mention			14,788		29,092			1,632		45,512
Substandard			15,472		23,360			4,950		43,782
Doubtful			653		-			-		653
Total		$	306,192	$	814,692		$	52,778	$	1,173,662
		Residential		Home Equity			Consumer		Total
Consumer:
Grade:
Pass		$	439,201	$	178,920		$	21,382	$	639,503
Special Mention			-		-			-		-
Substandard			2,673		119			119		2,911
Doubtful			-		-			-		-
Total		$	441,874	$	179,039		$	21,501	$	642,414
The following is a summary of loans acquired with evidence of credit deterioration from NEBS as of December 31, 2013:
		Contractual		Cash			Non-		Accretable		Loans
		Required		Expected			Accretable		Yield (2)		Receivable
		Payments		To Be			Discount
		Receivable		Collected (1)
Balance at acquisition date of November 16, 2012		$	9,911	$	7,041		$	2,870	$	-	$	7,041
2012 Collections			-17		-17			-		-		-17
Balance as of December 31, 2012			9,894		7,024			2,870		-		7,024
2013 Collections			-2		-2			-		-		-2
Impairment			-		-329			329		-		-329
Transfer to accretable yield			-		1,264			-1,268		1,268		1,264
Transfer to business banking unit			-421		-421			-		-		-421
Paid off			-2,934		-2,242			-688		-		-2,242
Transfer to OREO			-637		-637			-		-		-637
Charged off			-200		-200			-		-		-200
Balance as of December 31, 2013		$	5,700	$	4,457		$	1,243	$	1,268	$	4,457
-1	The Company has not factored any prepayments into the expected cash flows.
-2	The Company has not yet recognized any of the accretable yield in earnings.
The following is a summary of acquired impaired loan information for CNB Financial as of December 31, 2013:
		Contractual		Cash			Non-		Accretable		Loans
		Required		Expected			Accretable		Yield		Receivable
		Payments		To Be			Difference
		Receivable		Collected (1)
Balance as of December 31, 2010		$	1,140	$	172		$	968	$	-	$	172
2011 Collections			-37		-37			-		-		-37
Impairment			-		-135	(2)		-		-		-135
Transfer to accretable yield			-		-			-100		100		-
Accretable yield recognized in earnings			-		-			-		-100		-
Disposition			-1,103		-			-868		-		-
Balance as of December 31, 2011, 2012 and 2013		$	-	$	-		$	-	$	-	$	-
-1	The Company has not factored any prepayments into the expected cash flows.
-2	Amount represents a full reserve against the remaining net book value of the loan due to uncollectibility.
The excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable yield and is recognized in interest income over the remaining life of the loans. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the non-accretable difference. Changes in the expected cash flows from the date of acquisition will either impact the accretable yield or result in a charge to the provision for loan losses. Subsequent decreases to expected principal cash flows will result in a charge to the provision for loan losses and a corresponding increase to the allowance for loan losses. Subsequent increases in expected principal cash flows will result in recovery of any previously recorded allowance for loan losses, to the extent applicable, and a reclassification from non-accretable difference to accretable yield for any remaining increase. All changes in expected interest cash flows will result in reclassifications to/from non-accretable differences.
Acquired loans that are modified subsequent to acquisition are reviewed to compare modified contractual cash flows to the carrying value. If modified cash flows are lower than the carrying value, the loan is removed from the acquired loans pool at its carrying value, as well as the related allowance for loan losses, and is classified as a troubled debt restructure.

Banking_Premises_and_Equipment

Banking Premises and Equipment	15 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Banking Premises and Equipment	'
	NOTE F – BANKING PREMISES AND EQUIPMENT
	The composition of banking premises and equipment is as follows at December 31:
		2013		2012		Estimated Useful Lives
	Land and improvements	$	4,182	$	3,642
	Buildings and improvements		17,864		15,140	25-40 Years
	Leasehold improvements		2,598		3,078	Lesser of useful life or term of lease
	Furniture and equipment		7,343		7,320	3-10Years
	Assets under capitalized leases		5,359		5,359	Lesser of lease term or useful life
			37,346		34,539
	Less accumulated depreciation and amortization		-11,760		-9,475
		$	25,586	$	25,064
	Depreciation and amortization expense, including amortization for capitalized leases, totaled $2,854, $1,865 and $1,320 for the years ended December 31, 2013, 2012 and 2011, respectively.
	The Company leases twenty-one of its branches, two ATM facilities, two loan production offices, one financial services office and a new wing added to the main office. These premises and eighteen of the branches are all categorized as operating leases. The Company also entered into capital lease obligations for three of its branches. Rent expense for the years ended December 31, 2013, 2012 and 2011 amounted to $2,362, $1,474 and $1,302, respectively. The leases, which are non-cancelable, expire at various dates through 2034.
	Future minimum rental commitments under the terms of these leases are as follows:
		Operating		Capital		Total
		Leases		Leases
	Years ending December 31,
	2014	$	2,182	$	423	$	2,605
	2015		2,145		424		2,569
	2016		1,935		424		2,359
	2017		1,600		424		2,024
	2018		1,404		424		1,828
	Thereafter		10,468		4,804		15,272
	Total minimum lease payments	$	19,734		6,923	$	26,657
	Less interest included above				-2,384
	Capitalized lease obligations			$	4,539

Deposits

Deposits	15 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Deposits	'
	NOTE G – DEPOSITS
	Deposit accounts by type are summarized as follows at December 31:
			2013		2012
	Demand		$	342,000	$	307,302
	NOW			92,696		87,983
	Savings			342,605		350,188
	Money market			435,171		395,293
	Certificates of deposit			734,012		707,409
			$	1,946,484	$	1,848,175
	At December 31, 2013, the scheduled maturities of time deposits are as follows:
			Time Deposits
			³ $100		< $100		Total (1)
	2014		$	231,928	$	196,164	$	428,092
	2015			90,908		77,119		168,027
	2016			32,794		16,844		49,638
	2017			28,732		24,720		53,452
	2018			22,015		9,828		31,843
	Total		$	406,377	$	324,675	$	731,052
	-1	Includes brokered deposits in the amount of $20,045 and excludes the unamortized fair value adjustment balance of $2,960 recorded in connection with the acquisition of NEBS.
	Interest expense on deposits, classified by type, is as follows:
			Years Ended December 31,
			2013		2012		2011
	NOW		$	277	$	204	$	159
	Regular savings			1,196		1,328		1,694
	Money market			1,603		1,501		1,963
	Certificates of deposit			8,320		7,433		8,633
	Total		$	11,396	$	10,466	$	12,449

ShortTerm_Borrowings

Short-Term Borrowings	15 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Short-Term Borrowings	'
	NOTE H – SHORT-TERM BORROWINGS
	Federal Home Loan Bank of Boston Advances
	There was one FHLBB advance with an original maturity of less than one year in the amount of $20,000 with a rate of 0.16% at December 31, 2013. At December 31, 2012, there were two FHLBB advances with an original maturity of less than one year that totaled $30,000 with a weighted average rate of 0.32%. The Company has an available line of credit with the FHLBB at an interest rate that adjusts daily. There were no borrowings against the line of credit at December 31, 2013 and 2012. All borrowings from the FHLBB are secured by a blanket security agreement on qualified collateral, principally mortgage loans and U.S. Government and federal agency securities in an aggregate amount equal to outstanding advances. The Company’s unused borrowing capacity with the FHLBB, excluding its available line of credit balance of $12,000, at December 31, 2013 was approximately $217,041.
	Repurchase Agreements
	Securities sold under agreements to repurchase include funds borrowed from customers on an overnight basis. These customer repurchase agreements amounted to $41,555 and $49,229 at December 31, 2013 and 2012, respectively, at a weighted average rate of 0.33% and 0.57%, respectively. Interest expense for 2013, 2012 and 2011 was $42, $55 and $121, respectively. All of the repurchase agreements are secured by government-sponsored and government-guaranteed mortgage-backed securities.

LongTerm_Debt

Long-Term Debt	15 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	NOTE I – LONG-TERM DEBT
	Federal Home Loan Bank of Boston Advances
	Advances outstanding (together with year of maturity) at December 31, 2013 and 2012 consisted of the following:
			2013				2012
			Amount (1)		Weighted		Amount (1)		Weighted
					Average Rate				Average Rate
	2013		$	-		-	$	39,914		4.05%
	2014			13,000		2.90%		13,000		2.90%
	2015			8,756		0.55%		-		-
	2016			18,827		1.28%		9,689		1.56%
	2017			33,000		2.89%		33,000		2.89%
	2018			17,758		2.15%		5,000		3.75%
	Thereafter			27,722		1.96%		10,000		1.50%
			$	119,063		2.14%	$	110,603		3.11%
	-1	Excludes the fair value adjustment of $600 and $922 at December 2013 and 2012, respectively, recorded in connection with the acquisition of CNB Financial.
	At December 31, 2013, advances in the amount of $21,000 are callable at the option of the FHLBB at various dates through 2014.
	Subsequent to the acquisition of NEBS in the 2012 period, the Company paid off all of the FHLBB advances that it had acquired. No prepayment expense was recorded on these payoffs as the Company released the fair value adjustment of $2,299 on these advances to offset the prepayment penalties charged by the FHLBB.
	Secured Borrowings
	As of December 31, 2013 and 2012, there were two transfers of financial assets that do not meet the definition of a participating interest and are accounted for as secured borrowings in the amount of $2,589 and $2,444, respectively. Secured borrowings are accounted for as long-term debt on the consolidated balance sheets.
	Reverse Repurchase Agreements
	The Company secured two structured term reverse repurchase agreements in the amount of $10,000 each through another financial institution in 2008 and 2009. The reverse repurchase agreement entered into in 2008 for $10,000 matures in 2018, is callable on any quarterly payment date and has a rate of 2.73%. The reverse repurchase agreement entered into in 2009 for $10,000 matures in 2019, is callable in 2014 and has a rate of 2.44%. Interest expense for 2013, 2012 and 2011 was $526, $526 and $538, respectively. All of the repurchase agreements are secured by government-sponsored and government-guaranteed mortgage-backed securities.
	Subordinated Debentures
	The Company assumed subordinated debt as a result of the acquisition of CNB Financial in 2009 in the form of trust preferred securities issued through a private placement offering with a face amount of $7,732. The Company recorded a fair value acquisition discount of $2,383 on November 30, 2009. The remaining unamortized discount was $1,773 at December 31, 2013. This issue has a maturity date of March 15, 2036 and bears a floating rate of interest that reprices quarterly at the 3-month LIBOR rate plus 1.85%. The interest rate at December 31, 2013 was 2.09%. A special redemption provision allows the Company to redeem this issue at par on March 15, June 15, September 15, or December 15 of any year subsequent to March 15, 2011.
	The Company assumed subordinated debt as a result of the acquisition of NEBS in 2012 in the form of trust preferred securities issued through a private placement offering with a face amount of $4,124. The subordinated debt bore a floating rate of interest that repriced quarterly at the 3-month LIBOR rate plus 1.90%. The interest rate at December 31, 2012 was 2.21%. The Company redeemed this issue at par on February 23, 2013.

Income_Taxes

Income Taxes	15 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	NOTE J – INCOME TAXES
	The provision for federal and state income taxes is as follows:
		Years Ended December 31,
		2013		2012		2011
	Current tax (benefit) provision:
	Federal	$	-2,880	$	3,188	$	6,177
	State		43		1,793		1,700
			-2,837		4,981		7,877
	Deferred tax provision (benefit):
	Federal		7,169		-177		-3,293
	State		2,130		-1,009		-906
			9,299		-1,186		-4,199
	Provision for income taxes	$	6,462	$	3,795	$	3,678
	The following table summarizes the difference between the statutory federal income tax rate and the effective rate:
		Years Ended December 31,
		2013		2012		2011
	Statutory federal income tax rate		35.00%		35.00%		35.00%
	Increase (decrease) resulting from:
	State taxes, net of federal tax benefit		5.9		6.9		3.5
	Stock-based compensation		0.5		1.9		0.9
	Tax-exempt obligations		-3.5		-8.5		-4.1
	Tax credits		-8.1		-21.6		-8
	Bank owned life insurance		-3		-7.6		-3.5
	Non-deductible acquisition expenses		0.7		11.9		-
	ESOP termination expense		-		28.3		-
	Other, net		-0.4		4.8		0.9
	Effective tax rate		27.10%		51.10%		24.70%
	The components of the net deferred tax asset are as follows:
		December 31,
		2013		2012
	Deferred tax asset:
	Federal	$	16,477	$	22,632
	State		5,084		6,072
			21,561		28,704
	Deferred tax liability:
	Federal		-4,416		-6,989
	State		-2,184		-1,537
			-6,600		-8,526
	Net deferred tax asset:	$	14,961	$	20,178
	The tax effects of each type of income and expense item that give rise to deferred taxes are as follows:
		At December 31,
		2013		2012
	Cash basis of accounting	$	232	$	-410
	Investments:
	Net unrealized loss (gain) on securities available for sale		213		-3,847
	Impairment losses		622		1,056
	Partnerships and other investments		-975		-388
	Retirement benefits		555		533
	Depreciation		219		148
	Purchase accounting adjustments		373		2,812
	Allowance for loan losses		5,896		4,938
	Employee benefit plans		3,582		3,726
	Market value adjustment on loans		3,183		10,446
	Net operating loss carryforward		1,162		1,162
	Other		-101		2
	Net deferred tax asset	$	14,961	$	20,178
	A summary of the change in the net deferred tax asset is as follows:
		At December 31,
		2013		2012
	Balance at beginning of year	$	20,178	$	14,006
	Expense (benefit)		-9,299		1,186
	Recorded due to acquisition of NEBS		-		4,256
	Tax effect of changes in accumulated other comprehensive income (loss)		4,082		730
Balance at end of year	$	14,961	$	20,178
The Bank’s base year reserve for loan losses (as of December 31, 1995) will not be recaptured unless the reserve is used for purposes other than for loan losses, such as in a distribution in liquidation or otherwise. Accordingly, the Bank has not recorded a deferred tax liability of approximately $2,400 relating to approximately $5,900 of cumulative tax deductions related to loans generated prior to December 31, 1995.

Earnings_Per_Share

Earnings Per Share	15 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	NOTE K – EARNINGS PER SHARE
	The calculation of basic earnings per common share (“EPS”) and diluted earnings per common share for the years ended December 31, 2013, 2012 and 2011 is presented below.
			Years Ended December 31,
			2013		2012		2011
	Net income		$	17,402	$	3,628	$	11,184
	Weighted average common shares applicable to basic EPS (1)			19,779,667		15,234,896		14,929,714
	Effect of dilutive potential common shares (2) (3)			293,552		186,881		268,988
	Weighted average common shares applicable to diluted EPS			20,073,219		15,421,777		15,198,702
	Earnings per share:
	Basic		$	0.88	$	0.24	$	0.75
	Diluted		$	0.87	$	0.24	$	0.74
	-1	Share-based compensation awards that qualify as participating securities (entitled to receive non-forfeitable dividends) are included in basic EPS.
	-2	For the years ended December 31, 2013, 2012 and 2011, options to purchase 131,764; 241,300 and 233,390 shares, respectively, were not included in the computation of diluted earnings per share because they were antidilutive.
	-3	Includes incremental shares related to dilutive stock options.

StockBased_Incentive_Plans

Stock-Based Incentive Plans	15 Months Ended
	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Incentive Plans	'
	NOTE L – STOCK-BASED INCENTIVE PLANS
	The Company’s 2008 Equity Incentive Plan (the “2008 Incentive Plan”) was approved by the shareholders at the Company’s Annual Meeting held in June 2008. The 2008 Incentive Plan will remain in effect for a period of ten years and authorizes the issuance of up to 1,258,534 shares of Company common stock pursuant to grants of restricted stock awards, restricted stock unit awards, incentive stock options, non-statutory stock options and stock appreciation rights; provided, however, that no more than 898,953 shares may be issued or delivered in the aggregate pursuant to the exercise of stock options or stock appreciation rights, and no more than 359,581 shares may be issued or delivered pursuant to restricted stock awards or restricted stock unit awards.
	Employees and outside directors of the Company are eligible to receive awards under the 2008 Incentive Plan. The holders of restricted stock awards have full voting rights beginning on the grant date. Upon the occurrence of an event constituting a change in control of the Company, as defined in the 2008 Incentive Plan, all outstanding stock options will become fully vested, and all stock awards then outstanding will vest free of restrictions.
	The Company’s 2006 Stock-Based Incentive Plan (the “2006 Incentive Plan”) was approved by shareholders at the Company’s Annual Meeting held in July 2006. The 2006 Incentive Plan will remain in effect for a period of ten years and provides for the issuance of up to 1,180,330 shares of Company common stock pursuant to grants of incentive and non-statutory stock options, stock appreciation rights and restricted stock awards, provided that no more than 337,237 shares may be issued as restricted stock awards, and no more than 843,093 shares may be issued pursuant to the exercise of stock options or stock appreciation rights. As of a result of the Company’s second-step conversion and offering completed in December 2007 and in accordance with provisions in the 2006 Incentive Plan, the total number of shares authorized for grant, the number of stock options outstanding and the exercise prices for outstanding options were adjusted by an exchange ratio of 1.04079. Employees and outside directors of the Company are eligible to receive awards under the 2006 Incentive Plan. The holders of restricted stock awards have full voting rights beginning on the grant date. Upon the occurrence of an event constituting a change in control of the Company, as defined in the 2006 Incentive Plan, all outstanding stock options will become fully vested, and all stock awards then outstanding will vest free of restrictions.
	Under the incentive plans, stock options are granted at an exercise price equal to the fair value of the underlying shares at the date of grant and have a contractual life of ten years. Stock options vest based on continued service with the Company over the five-year period following the grant date. The compensation cost related to stock options is based upon the fair value for each option as of the date of the grant determined using the Black-Scholes option pricing model. The Black-Scholes model requires the Company to provide estimates of the expected term, volatility of the underlying stock, the stock’s dividend yield and the discount rate. The Company intends to utilize previously repurchased shares to satisfy stock option exercises.
	The compensation cost related to restricted stock awards is based upon the Company’s stock price at the grant date. Restricted stock awards generally vest based upon continuous service with the Company over the five year period following the grant date. During the vesting period, participants are entitled to dividends for all awards.
	A combined summary of activity in the Company’s incentive plans for the years ended December 31, 2013 and 2012 is presented in the following table:
		Shares		Stock Awards Outstanding				Stock Options Outstanding
		Available
		for Grant		Number of		Weighted-		Number of		Weighted-
				Shares		Average		Shares		Average
						Grant				Exercise
						Value				Price
	Balance at December 31, 2011		348,629		167,050	$	12.42		1,660,915	$	12.43
	Granted		-108,500		29,500		15.09		79,000		15.03
	Stock options exercised		-		-		-		-99,251		12.18
	Shares vested		-		-74,950		12.08		-		-
	Forfeited		35,100		-7,000		11.81		-28,100		12.3
	Cancelled		11,524		-1,000		11.66		-10,524		11.69
	Balance at December 31, 2012		286,753		113,600		13.38		1,602,040		12.59
	Granted		-7,500		-		-		7,500		15.04
	Stock options exercised		-		-		-		-532,949		12.72
	Shares vested		-		-74,850		12.35		-		-
	Cancelled		483		-		-		-483		14.87
	Balance at December 31, 2013		279,736		38,750	$	15.36		1,076,108	$	12.54
	During 2013, the Company granted 7,500 stock options to certain employees under the 2008 Incentive Plan. The stock options had a weighted average value of $3.27 per share, with a total grant date fair value of $25. The Company did not grant any restricted shares during 2013.
	During 2012, the Company granted 79,000 stock options and 29,500 restricted shares to certain employees under the 2008 Incentive Plan. The stock options had a weighted average value of $3.37 per share, with a total grant date fair value of $266. The restricted shares had a weighted average value of $15.09 per share, with a total grant date fair value of $445.
	The Company’s total compensation cost for shared-based payment arrangements was $1,045, $1,453 and $1,891 for the years ended December 31, 2013, 2012 and 2011, respectively. The Company recorded excess tax benefits on stock compensation plans of $73, $29 and $91 for the years ended December 31, 2013, 2012 and 2011, respectively, related to the recognition of the shared-based compensation expense. As of December 31, 2013, compensation costs related to non-vested stock awards and options totaling $1,205 have not been recognized. These costs will be recognized over an estimated weighted average period of 2.7 years.
	The following table presents the assumptions used to compute the fair value of options using the Black-Scholes option pricing model for stock options granted during 2013, 2012 and 2011.
		2013		2012		2011
	Weighted average fair value	$	3.27	$	3.37	$	4
	Expected term (short-cut method)		6.50 years		6.50 years		6.50 years
	Volatility		29.03%		29.67%		28.76%
	Expected dividend yield		2.66%		2.57%		2.25%
	Weighted average risk-free interest rate		1.30%		1.20%		2.14%
	A summary of stock options outstanding and exercisable at December 31, 2013 is as follows:
		Stock Options
		Outstanding		Exercisable
	Total number of shares		1,076,108		947,558
	Weighted average exercise price	$	12.54	$	12.24
	Aggregate intrinsic value	$	6,837	$	6,303
	Weighted average remaining contractual term		4.4 years		3.9 years

Employee_Benefit_Plans

Employee Benefit Plans	15 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	NOTE M – EMPLOYEE BENEFIT PLANS
	Senior Executive Retirement Plan
	The Company has entered into Executive Supplemental Compensation Agreements (the “Agreements”) with certain of its current and former officers. The estimated amount to be paid under the Agreements is accrued over the executive’s active employment from the time the agreement is signed to the date of full eligibility. Effective October 1, 2007, the Company consolidated the Agreements of current senior executives into a SERP. The Company continues to maintain the Agreements for certain former officers. The liability associated with the Agreements was $828 and $911 at December 31, 2013 and 2012, respectively, and is included in accrued expenses and other liabilities in the consolidated balance sheets. Included in this liability at December 31, 2013 and 2012 is an additional $224 and $243, respectively, as a result of the NEBS acquisition. The expense for the Agreements was $43, $35 and $36 for the years ended December 31, 2013, 2012 and 2011, respectively.
	The SERP provides that each executive will receive supplemental benefits, to the extent vested, commencing 180 days following separation from service. The supplemental benefit will be equal to the percentage of the executive’s final average compensation set forth in each executive’s participation agreement, multiplied by a fraction, the numerator of which is the executive’s years of credited service with the Company and the denominator of which is set forth in the executive’s participation agreement. The supplemental benefit will commence on the executive’s normal benefit date and will be payable in a lump sum, unless the executive has elected, at the time of execution of the participation agreement, to receive an annuity or other form of benefit. The SERP is unfunded and is considered a nonqualified plan under the Internal Revenue Code.
	Directors Fee Continuation Plan
	The Company sponsors a Directors Fee Continuation Plan under which a Director will annually receive $15 ($24 for former chairpersons) for ten years beginning upon attaining the normal retirement date. The benefit is reduced for directors serving fewer than 15 years. In the event of the participant’s death prior to receiving the full benefits of the plan, any unpaid benefits will be paid to the beneficiary. The Company recognizes expense under this plan on a ratable basis such that the present value of the liability is fully accrued at each director’s normal retirement date. Effective October 1, 2007, the Board of Directors adopted a Director Retirement Plan to replace the Directors Fee Continuation Plan. Current directors who are participants in the Directors Fee Continuation Plan, the predecessor plan, will participate in the plan from the effective date. Retired directors will continue to receive benefits under the Directors Fee Continuation Plan. At December 31, 2013 and 2012, the Company’s recorded liability for this plan amounted to $185 and $235, respectively, and is included in accrued expenses and other liabilities in the consolidated balance sheets. The Company was not required to record an expense for the years ended December 31, 2013, 2012 and 2011.
	Director Retirement Plan
	The Director Retirement Plan will provide for the payment of normal retirement benefits upon the director’s separation from service on or after attainment of his normal retirement age (age 72 or age 65 with 10 years of service). The normal retirement benefit will generally be equal to 70% of the average annual director’s fees over the highest three years during a director’s final 10 years of service, and will be payable in 10 annual installments commencing within 60 days after the director’s separation from service.
	In the event a participant has a separation from service prior to his normal retirement date (other than due to termination for cause, disability or death), the participant will be entitled to a lesser benefit payable in ten annual installments commencing at age 65. The amount payable will be determined by multiplying the normal retirement benefit by the director’s benefit percentage, which is 10% for each year of service, up to 100%. The supplemental benefit will commence on the director’s normal benefit date and will be payable in a lump sum, unless the director has elected, at the time of execution of the participation agreement, to receive an annuity or other form of benefit. A director’s benefit percentage will accelerate to 100% upon the director’s separation from service due to death, disability or a change in control. Effective December 1, 2011, the Board of Directors elected to freeze the Director Retirement Plan to new members of the Board of Directors. The Director Retirement Plan is accounted for as a defined benefit plan.
	The following table summarizes the changes in the projected benefit obligation (“PBO”), the funded status of the PBO and the weighted average assumptions used to determine the benefit obligation for the SERP and Director Retirement Plan at December 31, 2013 and 2012. These plans had no assets at December 31, 2013 and 2012. Amounts recognized at December 31, 2013 and 2012 are reflected in accrued expenses and other liabilities on the consolidated balance sheets.
		At or For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Change in projected benefit obligation:
	Beginning of period	$	5,072	$	1,149	$	3,870	$	1,205
	Service cost		441		61		401		55
	Interest cost		220		60		189		44
	Actuarial (gain)/loss		-66		297		3		25
	Plan amendments		-		-		609		41
	Benefits paid		-55		-26		-		-221
	End of period	$	5,612	$	1,541	$	5,072	$	1,149
	Accrued benefit cost	$	5,612	$	1,541	$	5,072	$	1,149
		At or For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Amounts recognized in accumulated other comprehensive income consist of:
	Prior service cost	$	-975	$	-137	$	-1,174	$	-180
	Net gain/(losses)		182		-428		116		-194
	Total	$	-793	$	-565	$	-1,058	$	-374
	Weighted-average assumptions used to determine benefit obligations:
	Discount rate		5.00%		5.00%		4.00%		4.00%
	Rate of compensation increase		5.00%		2.00%		5.00%		2.00%
	Components of the net periodic benefit cost are as follows:
		For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Periodic benefit cost:
	Service cost	$	441	$	61	$	401	$	55
	Interest cost		220		60		189		44
	Total pension cost		661		121		590		99
	Prior service cost amortization		200		43		200		43
	Net loss amortization		-		62		-		48
	Net periodic benefit cost	$	861	$	226	$	790	$	190
	Weighted-average assumptions used to determine net periodic benefit cost:
	Discount rate		4.00%		4.00%		4.25%		4.25%
	Rate of compensation increase		5.00%		2.00%		5.00%		2.00%
	The unrecognized prior service cost for the SERP is being amortized over a period of approximately seven years (estimated employee service life). The unrecognized prior service cost and net loss for the Director Retirement Plan are being amortized over a period of approximately six years. In 2014, approximately $200 and $43 in prior service cost for the SERP and the Director Retirement Plan, respectively, is expected to be recognized as a component of net periodic benefit cost. In 2014, approximately $52 in unrecognized net loss for the Director Retirement Plan is expected to be recognized in net periodic benefit cost.
	At December 31, 2013, the benefit payments expected to be paid in each of the next five years and the aggregate for the five fiscal years thereafter are as follows:
		SERP		Director
				Retirement Plan
	Years ending December 31,
	2014	$	3,359	$	512
	2015		56		26
	2016		1,219		366
	2017		55		26
	2018		56		391
	2019 through 2023		278		439
	Total for the next ten years	$	5,023	$	1,760
	Except for the benefit payments expected to be paid, the Company does not expect to make contributions to these plans in 2014.
	Employee Stock Ownership Plan
In connection with the Company’s 2005 initial public offering, the Bank established an ESOP. The Company issued 641,301 shares of common stock to the ESOP in exchange for a twenty-year note. In connection with the Company’s second step conversion, the number of shares in the plan was adjusted by the exchange ratio of 1.04079 to total 667,458 shares. The loan amount was approximately $6,413 and was recorded as “Unearned Compensation” within stockholders’ equity. The loan bore interest equal to the prime rate in effect at January 1st of each year and provided for annual payments of principal and interest. Prior to January 2008, the Board of Directors voted to accelerate its Employee Stock Ownership Plan benefit from a twenty-year to a fifteen-year allocation period.
As part of the Company’s 2007 second step conversion and offering, an additional 753,834 shares of common stock were contributed to the ESOP in exchange for a twenty-year note. The loan amount was approximately $7,538 and was recorded as “Unearned Compensation” within stockholders’ equity. The loan bore interest equal to the prime rate in effect at January 1st of each year and provided for annual payments of principal and interest.
The Company terminated the ESOP plan effective December 31, 2012. A total of 357,053 shares were held in trust as of December 31, 2012 pending a favorable determination letter from the Internal Revenue Service prior to the distribution of these shares to participants. These shares were allocated to participants in 2013 and will be distributed to participants pending receipt of the aforementioned determination letter. As provided in the plan, the outstanding loans were repaid through the sale of 664,552 shares by the plan to the Company. Those shares were recorded as treasury shares at the December 31, 2012 closing price of $15.72. The Company reported compensation expense, equal to the average daily market price of the shares, as they were committed to be released from the suspense account. Total compensation expense applicable to the ESOP amounted to $0, $1,089 and $1,114 for the years ended December 31, 2013, 2012 and 2011, respectively. Total expense applicable to the termination of the ESOP was recorded in the amount of $4,482 for the year ended December 31, 2012. This is the value of accelerating the vesting of shares remaining after the loan was paid. The effect on capital of this expense was offset by credits to unearned compensation and additional paid in capital in stockholders’ equity.
Shares held by the ESOP Plans include the following:
	December 31,
	2013		2012		2011
Allocated		733,366		376,483		308,915
Committed to be released		-		357,053		71,709
Unallocated		-		-		1,021,504
		733,366		733,536		1,402,128
Cash dividends received on allocated shares were allocated to participants and cash dividends received on shares held in suspense were used to fund the scheduled annual debt payment. The fair value of unallocated shares at December 31, 2013, 2012 and 2011 was $0, $0 and $16,436, respectively.
In connection with the acquisition of NEBS, the Company assumed the obligations of the New England Bank Employee Stock Ownership Plan (“NEB ESOP”). The NEB ESOP was terminated as of December 31, 2012 and all outstanding loan obligations under the plan were repaid. The Company received 128,469 of its shares from the NEB ESOP in satisfaction of the loan, resulting in the recognition of $284 in acquisition-related expenses for the year ended December 31, 2012. Those shares were recorded as treasury shares on the date of the payment. Participant shares in the plan totaled 220,245 shares at both December 31, 2013 and 2012. These shares were being held in trust at December 31, 2013 pending a positive determination from the Internal Revenue Service prior to distribution to participants.
Defined Benefit Plan
As a result of the acquisition of NEBS, the Company participates in the Pentegra Defined Benefit Plan for Financial Institutions (the “Pentegra DB Plan”), a tax-qualified defined-benefit pension plan. The Pentegra DB Plan operates as a multi-employer plan for accounting purposes and as a multi-employer plan under the Employee Retirement Income Security Act of 1974 and the Internal Revenue Code. There are no collective bargaining agreements in place that require contributions to the Pentegra DB Plan.
The Pentegra DB Plan is a single plan under Internal Revenue Code Section 413(c) and, as a result, all of the assets stand behind all of the liabilities. Accordingly, under the Pentegra DB Plan contributions made by a participating employer may be used to provide benefits to participants of other participating employers.
The funded status (market value of plan assets divided by funding target) of the Pentegra DB Plan as of July 1, 2013 is 111.6% per the actuarial valuation reports. Market value of plan assets reflects contributions received through June 30, 2013.
The Company’s contributions to the Pentegra DB Plan will not be more than 5% of the total contributions to the Pentegra DB Plan. A contribution of $900 was accrued by the Company during the year ended December 31, 2012 with the payment made during January 2013 in order to fully fund the Pentegra DB Plan. The Company contributed an additional $48 during 2013. There was no pension expense under the plan for the years ended December 31, 2013 or 2012. The Company will make the future required contributions and incur applicable pension expense going forward.

Commitments_and_Contingencies

Commitments and Contingencies	15 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	NOTE N – COMMITMENTS AND CONTINGENCIES
	Financial Instruments With Off-Balance Sheet Risk
	The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to originate loans and standby letters of credit. The Company does not record a liability for the fair value of the obligation undertaken in issuing standby letters of credit unless it becomes probable that the Company would have to perform under the guarantee. These instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets. The contract or notional amounts of those instruments reflect the extent of involvement the Company has in particular classes of financial instruments.
	The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for loan commitments and standby letters of credit is represented by the contractual or notional amounts of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.
	Financial instruments with off-balance sheet risk at December 31, 2013 and 2012 are as follows:
		2013		2012
	Unused lines of credit	$	338,698	$	308,683
	Amounts due mortgagors		102,126		36,365
	Standby letters of credit		5,443		3,573
	Commitments to originate loans		33,899		63,974
	Included in commitments to originate loans at December 31, 2013 and 2012 are fixed rate commitments in the amount of $5,251 and $15,591, at interest ranges of 3.02% to 5.75% and 2.50% to 6.50%, respectively.
	Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis.
	The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation.
	Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Company holds residential or commercial real estate, accounts receivable, inventory and equipment as collateral supporting those commitments for which collateral is deemed necessary. The extent of collateral held for those commitments at December 31, 2013 and 2012 exceeds 100%.
	During 2012, the Company established a reserve for these unfunded, off balance sheet commitments using similar methodology to that used for the allowance for loan and lease losses. As of December 31, 2013 and 2012, the reserve for unfunded commitments had a balance of $142 and $213, respectively.
	The Company has also committed to invest up to $10,000, representing 25% of the Class A or senior investor balance, in low income housing tax credit funds by the end of 2015. At December 31, 2013, the Company has invested $8,882 in the fund, which has been reduced by net operating losses of $2,288. The net carrying balance of $6,594 and $6,871 is included in other assets in the consolidated balance sheets at December 31, 2013 and 2012, respectively. As a Class A investor, the Company has the right to transfer its investment to the fund’s Class B investor at the end of 10 years at which time the Company would have no compliance requirements or interest in the fund. The fund structure contemplates that the Class A investors will receive 95% of the tax credits and net operating losses for a period of eight years or until the minimum investment return has been met. Net operating losses allocated to the Company are recognized as they are incurred and recorded in non-interest expense.
	In 2012, the Company committed to and invested $1,806, or 50% interest, in a new markets housing tax credit fund, which has been reduced by net operating losses of $43. The net carrying value of $1,763 and $1,806 is included in other assets in the Company’s consolidated balance sheets at December 31, 2013 and 2012, respectively.
	In 2012, the Company committed to invest $2,000 in another new markets housing tax credit fund by the end of 2015. In 2013, the Company invested $1,138 in this fund, which has been reduced by net operating losses of $265. The net carrying value of $873 and $275 is included in other assets on the Company’s consolidated balance sheets at December 31, 2013 and 2012, respectively.
	The Company committed to and invested $979 in another new market tax credit fund in August 2013. The net carrying value of $979 is included in other assets on the Company’s consolidated balance sheets.
	In 2013, the Company committed to invest $3,000 in another new markets housing tax credit fund by the end of 2016. In 2013, the Company invested $1,123 in this fund. The net carrying value of $1,123 is included in other assets on the Company’s consolidated balance sheets.
	Employment and Change in Control Agreements
	The Company has entered into a three-year employment agreement with its President and Chief Executive Officer which expires in 2014. This agreement generally provides for a base salary and the continuation of certain benefits currently received. Annually, the Company may extend the agreement for an additional year. Under certain specified circumstances, the employment agreement requires certain payments to be made for certain reasons other than cause, including a “change in control” as defined in the agreement. However, such employment may be terminated for cause, as defined, without incurring any continuing obligations.
	The Company also entered into three-year change in control agreements with certain executive officers, none of whom are covered by an employment agreement. The change in control agreements are renewable on an annual basis and generally provide a severance payment and the continuation of certain benefits currently received following a “change in control” as defined in the agreements.
	Litigation
	United Bank, as successor in interest to Commonwealth National Bank, is involved in litigation relating to its foreclosure on a certain loan property. The litigants claim that Commonwealth National Bank acted in bad faith and in violation of applicable law and that its actions resulted in a sale of the underlying property for less than its market value, thereby causing damage to the parties. During the third quarter of 2011, the judge issued a ruling in favor of United Bank. The litigants have appealed the decision. United Bank believes these claims and the appeal are without merit and is vigorously defending the litigation. No estimate of any reasonably possible loss or range of loss to United Bank can be made at this time.
	In addition, the Company is subject to various legal actions arising in the normal course of business. In the opinion of management, after consultation with legal counsel, the ultimate disposition of these matters is not expected to have a material adverse effect on the Company’s financial condition, results of operations or cash flows.

Fair_Values_of_Financial_Instr

Fair Values of Financial Instruments	15 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Values of Financial Instruments	'
	NOTE O – FAIR VALUES OF FINANCIAL INSTRUMENTS
	The Company groups its financial assets measured at fair value in three levels, based on the markets in which the assets are traded and the reliability of the assumptions used to determine fair value.
	Level 1 – Valuations for assets traded in active exchange markets, such as the New York Stock Exchange. Level 1 also includes U.S. Treasury and other U.S. government and government-sponsored enterprises that are traded by dealers or brokers in active markets. Valuations are obtained from readily available pricing sources for market transactions involving identical assets and are not adjusted by the Company.
	Level 2 – Valuations for assets traded in less active dealer or broker markets. Level 2 includes U.S. government and mortgage-backed securities issued by government-sponsored enterprises. Valuations are obtained from third party pricing services for identical or comparable assets and are not adjusted by the Company.
	Level 3 – Valuations for assets that are derived from other valuation methodologies, including option pricing models, discounted cash flow models and similar techniques, and not based on market exchange, dealer, or broker-traded transactions. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets and liabilities.
	Assets measured at fair value on a recurring basis, are summarized below:
		Level 1		Level 2		Level 3		Total
								Fair Value
	At December 31, 2013
	Securities available for sale:
	Government-sponsored enterprises	$	-	$	1,851	$	-	$	1,851
	Government-sponsored and government- guaranteed mortgage-backed securities		-		236,454		-		236,454
	Private label mortgage-backed securities		-		-		-		-
	Municipal bonds		-		24,718		-		24,718
	Corporate bonds		-		-		1,606		1,606
	Total	$	-	$	263,023	$	1,606	$	264,629
	At December 31, 2012
	Securities available for sale:
	Government-sponsored enterprises	$	-	$	3,233	$	-	$	3,233
	Government-sponsored and government- guaranteed mortgage-backed securities		-		257,762		-		257,762
	Private label mortgage-backed securities		-		2,566		-		2,566
	Municipal bonds		-		28,827		-		28,827
	Corporate bonds		-		-		1,934		1,934
	Total	$	-	$	292,388	$	1,934	$	294,322
	The Company has no liabilities measured at fair value on a recurring basis at December 31, 2013 and 2012.
	The table below presents the changes in Level 3 assets measured at fair value on a recurring basis for the years ended December 31, 2013 and 2012.
		2013		2012
	Balance at beginning of year	$	1,934	$	1,566
	Total realized/unrealized gains (losses) included in net income		277		-165
	Change in unrealized gain (loss)		-161		533
	Sales		-444		-
	Balance at end of year	$	1,606	$	1,934
	The Company may be required, from time to time, to measure certain other financial assets 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-fair value accounting or write-downs of individual assets. The following table summarizes the fair value hierarchy used to determine the adjustment and the carrying value of the related assets as of and for the years ended December 31, 2013 and 2012.
	December 31, 2013	Level 1		Level 2		Level 3		Total
								Gains/(Losses)
	Assets:
	Loans	$	-	$	-	$	1,235	$	-1,061
	Other real estate owned		-		-		399		-177
	Total assets	$	-	$	-	$	1,634	$	-1,238
	December 31, 2012
	Assets:
	Loans	$	-	$	-	$	546	$	-748
	Other real estate owned		-		-		825		-429
	Other assets		-		-		595		-37
	Total assets	$	-	$	-	$	1,966	$	-1,214
	The amount of loans represents the carrying value and related write-down and valuation allowance of impaired loans for which adjustments are based on the estimated fair value of the underlying collateral. The other real estate owned amount represents the carrying value for which adjustments are also based on the estimated fair value of the property. Included in other assets in the 2012 period is a venture capital investment carried at cost. In the third quarter of 2012 management determined that an impairment indicator existed and that the investment suffered impairment that was considered other- than- temporary. The cost basis of the investment was written down by $37 in the third quarter of 2012 to fair value as a new cost basis and the write down was accounted for as a realized loss and was included in earnings.
	Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument. Because a market may not readily exist for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in assumptions could significantly affect the estimates.
	The following methods and assumptions were used by the Company in estimating fair values of its financial instruments:
	Cash and Cash Equivalents and Short-term Investments
	The carrying amounts of cash and short-term instruments approximate fair values based on the short-term nature of the assets.
	Investment Securities and FHLBB Stock
	The fair value of securities to be held to maturity and securities available for sale is estimated based on quoted market prices, where available, and are not adjusted by management. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Ownership of FHLBB stock is restricted to member banks; therefore, the stock is not traded. The estimated fair value of FHLBB stock is equal to its carrying value, which represents the price at which the FHLBB is obligated to redeem its stock.
	Loans
	For valuation purposes, the loan portfolio was segregated into its significant categories, which are residential mortgage, commercial real estate, commercial and consumer. These categories were further segregated, where appropriate, into components based on significant financial characteristics such as type of interest rate (fixed or adjustable). Fair values were estimated for each component using assumptions developed by management and a valuation model provided by a third party specialist.
	The fair values of residential mortgage, commercial real estate, commercial and consumer loans were estimated by discounting the anticipated cash flows from the respective portfolios. Estimates of the timing and amount of these cash flows considered factors such as future loan prepayments. The discount rates reflected current market rates for loans with similar terms to borrowers of similar credit quality. The fair value of home equity lines of credit was based on the outstanding loan balances. Fair values for non-performing loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable.
	Loans Held for Sale
	Fair values are based on commitments in effect from investors or prevailing market rates.
	Deposits
	The fair value of deposits with no stated maturity, such as demand deposits, NOW, regular savings, and money market deposit accounts, is equal to the amount payable on demand. The fair value estimates do not include the benefit that results from the generally lower cost of funding provided by the deposit liabilities compared to the cost of borrowing funds in the market. The fair value estimate of time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits having similar remaining maturities.
	Short-term Borrowings
	For short-term borrowings maturing within ninety days, carrying values approximate fair values. Fair values of other short-term borrowings are estimated using discounted cash flow analyses based on the current incremental borrowing rates in the market for similar types of borrowing arrangements.
	Long-term Debt
	The fair values of the Company’s 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.
Repurchase Agreements
The Company enters into overnight repurchase agreements with its customers. Since these agreements are short-term instruments, the fair value of these agreements approximates their recorded balance. The Company also secures term repurchase agreements through other financial institutions. The fair value of these agreements are determined by discounting the anticipated future cash payments using rates currently available to the Bank for debt with similar terms and remaining maturities.
Subordinated Debentures
The Company has outstanding subordinated debt in the form of trust preferred securities issued through a private placement offering. The fair value estimate is determined by discounting the anticipated future cash payments by using the rates currently available to the Company for debt with similar terms and remaining maturities.
Off-Balance-Sheet Instruments
Fair value of off-balance-sheet mortgage 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. In the case of the commitments discussed in Note N, the fair value equals the carrying amounts which are not significant.
Summary of Fair Values of Financial Instruments
The estimated fair values, and related carrying or notional 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.
	At December 31, 2013
	Carrying		Level 1		Level 2		Level 3		Estimated
	Value								Fair Value
Financial Assets:
Cash and cash equivalents	$	47,241	$	47,241	$	-	$	-	$	47,241
Securities available for sale		264,629		-		263,023		1,606		264,629
Securities held to maturity		111,185		-		111,715		-		111,715
Stock in Federal Home Loan Bank of Boston		17,334		-		-		17,334		17,334
Net loans and loans held for sale		1,871,066		-		-		1,865,807		1,865,807
Financial Liabilities:
Deposits (with no stated maturity)		1,212,472		-		-		1,212,472		1,212,472
Time deposits		734,012		-		-		740,723		740,723
Federal Home Loan Bank of Boston advances		139,663		-		-		140,778		140,778
Repurchase agreements		61,555		-		-		61,788		61,788
Subordinated debentures		5,959		-		5,959		-		5,959
	At December 31, 2012
	Carrying		Level 1		Level 2		Level 3		Estimated
	Value								Fair Value
Financial Assets:
Cash and cash equivalents	$	30,679	$	30,679	$	-	$	-	$	30,679
Securities available for sale		294,322		-		292,388		1,934		294,322
Securities held to maturity		82,986		-		85,674		-		85,674
Stock in Federal Home Loan Bank of Boston		18,554		-		-		18,554		18,554
Net loans and loans held for sale		1,808,033		-		-		1,846,519		1,846,519
Financial Liabilities:
Deposits (with no stated maturity)		1,140,766		-		-		1,140,766		1,140,766
Time deposits		707,409		-		-		711,845		711,845
Federal Home Loan Bank of Boston advances		141,525		-		-		145,543		145,543
Repurchase agreements		69,229		-		-		70,082		70,082
Subordinated debentures		9,630		-		9,630		-		9,630

Stockholders_Equity

Stockholders' Equity	15 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Stockholders' Equity	'
	NOTE P – STOCKHOLDERS’ EQUITY
	Regulatory Capital
	The Bank is subject to various minimum regulatory capital standards promulgated by the Office of the Comptroller of the Currency (the “OCC”). Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Bank’s financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities, and certain off-balance-sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. The Company is not separately subject to capital guidelines.
	The minimum capital standards of the OCC generally require the maintenance of regulatory capital sufficient to meet each of three tests, hereinafter described as the total risk-based capital requirement, the Tier I risk-based capital requirement and the Tier I or leverage capital requirement. The Tier I risk-based and Tier I leverage capital requirements provide for minimum core capital (tangible capital plus certain forms of supervisory goodwill and other qualifying intangible assets) generally equal to 4.0% of risk-weighted assets and to 4.0% of adjusted total assets, respectively, except for those banks with the highest examination rating and acceptable levels of risk. The risk- based capital requirement provides for the maintenance of core capital plus general loss allowances equal to 8.0% of risk-weighted assets. In computing risk-weighted assets, the Bank multiplies the value of each asset on its balance sheet by a defined risk-weighting factor, e.g., one- to four-family residential loans carry a risk-weighted factor of 50%.
	The OCC capital rules also require savings associations to hold a ratio of 1.5% tangible capital to tangible assets. Tangible equity is defined as core capital less intangible assets. Tangible assets are defined as adjusted total assets less intangible assets.
	As of December 31, 2013, the most recent notification from the OCC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as adequately capitalized the Bank must maintain minimum ratios as set forth in the accompanying table. There are no conditions or events since that notification that management believes have changed the Bank’s category.
	The Bank’s actual capital amounts and ratios, as well as minimum amounts and ratios required for capital adequacy are presented below:
		Actual				For Capital				To Be Well Capitalized
						Adequacy Purposes				Under Regulatory
										Framework
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	As of December 31, 2013:
	Total Risk-based Capital
	(to Risk Weighted Assets)	$	264,058		13.10%	$	161,376		8.00%	$	201,720		10.00%
	Tier I Risk-based Capital
	(to Risk Weighted Assets)		250,645		12.40%		80,688		4.00%		121,032		6.00%
	Tier I (Core) Capital
	(to Adjusted Total Assets)		250,645		10.30%		97,633		4.00%		122,042		5.00%
	Tangible Equity
	(to Tangible Assets)		250,645		10.30%		36,612		1.50%		N/A
	As of December 31, 2012:
	Total Risk-based Capital
	(to Risk Weighted Assets)	$	263,712		13.60%	$	155,028		8.00%	$	193,786		10.00%
	Tier I Risk-based Capital
	(to Risk Weighted Assets)		251,623		13.00%		77,514		4.00%		116,271		6.00%
	Tier I (Core) Capital
	(to Adjusted Total Assets)		251,623		10.70%		94,117		4.00%		117,646		5.00%
	Tangible Equity
	(to Tangible Assets)		251,623		10.70%		35,294		1.50%		N/A
	The following table provides a reconciliation of the Company’s total consolidated equity to the capital amounts for the Bank reflected in the preceding table:
		December 31
		2013		2012
	Total consolidated equity	$	302,779	$	307,189
	Adjustments:
	Additional equity capital of United Financial Bancorp, Inc.		-8,954		-6,302
	Accumulated other comprehensive income		1,091		-5,401
	Disallowed goodwill and intangible assets		-44,271		-43,863
	Tangible, Tier I and Core Capital		250,645		251,623
	Allowance for loan losses		13,413		12,089
	Total risk-based capital	$	264,058	$	263,712
	Common Stock Repurchase Plans
	On August 15, 2013, the Board of Directors approved a plan to repurchase up to 5%, or approximately 970,000 shares, of the Company’s common stock through open market purchases or privately negotiated transactions. Stock repurchases are accounted for as treasury stock, carried at cost, and reflected as a reduction in stockholders’ equity. This repurchase program will commence immediately upon completion of the previous plan approved on October 18, 2012, under which the Company intends to repurchase shares from time to time, depending on market conditions until it is completed.
	On October 18, 2012, the Board of Directors approved a plan to repurchase up to 5%, or approximately 769,000 shares, of the Company’s common stock through open market purchases or privately negotiated transactions. As of December 31, 2013, the Company repurchased 516,663 shares at a cost of approximately $7,687 and an average price of $14.88 under this plan.
	On October 26, 2010, the Board of Directors approved a plan to repurchase up to 5%, or approximately 807,803 shares, of the Company’s common stock through open market purchases or privately negotiated transactions. The Company completed its repurchase of 807,803 shares of its outstanding common stock, at a cost of approximately $12,134 and at an average price of $15.02, on November 19, 2012.

Condensed_Financial_Statements

Condensed Financial Statements of United Financial Bancorp, Inc.	15 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Condensed Financial Statements of United Financial Bancorp, Inc.	'
	NOTE Q – CONDENSED FINANCIAL STATEMENTS OF UNITED FINANCIAL BANCORP, INC.
	The following are the condensed financial statements for United Financial Bancorp, Inc. (parent company only).
	BALANCE SHEETS
		December 31,
		2013		2012
	ASSETS
	Cash and cash equivalents	$	15,689	$	16,642
	Investment in Bank		293,825		300,887
	Other assets		5,720		4,385
	TOTAL ASSETS	$	315,234	$	321,914
	LIABILITIES AND STOCKHOLDERS’ EQUITY
	Subordinated debentures	$	5,959	$	9,630
	Other liabilities		6,496		5,095
	Stockholders’ equity		302,779		307,189
	TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	315,234	$	321,914
	STATEMENTS OF INCOME
		Years Ended December 31,
		2013		2012		2011
	Income:
	Investment interest	$	48	$	82	$	111
	ESOP loan interest		-		360		379
	Gain on sale of other assets		204		-		-
	Impairment charges on securities		-		-37		-99
	Other income		-		22		-
	Total income		252		427		391
	Expense:
	Subordinated debentures interest		276		276		255
	Professional services		1,369		1,293		1,295
	Merger related expenses		612		1,881		-
	Other expenses		169		24		102
	Total expense		2,426		3,474		1,652
	Loss before income tax benefit		-2,174		-3,047		-1,261
	Income tax benefit		-308		-498		-510
	Loss before equity in undistributed earnings of the Bank		-1,866		-2,549		-751
	Equity in undistributed earnings of the Bank		19,268		6,177		11,935
	NET INCOME	$	17,402	$	3,628	$	11,184
	STATEMENTS OF CASH FLOWS
		Years Ended December 31,
		2013		2012		2011
	Cash flows from operating activities:
	Net income	$	17,402	$	3,628	$	11,184
	Adjustments to reconcile net income to net cash
	(used in) provided by operating activities:
	Equity in undistributed earnings of the bank		-19,268		-6,177		-11,935
	Impairment charges on securities		-		37		99
	Decrease in accrued interest receivable		1		-		1
	(Increase) decrease in other assets		-1,302		1,786		-1,820
	Increase (decrease) in intercompany payables and other liabilities		1,401		4,886		-57
	Net cash (used in) provided by operating activities		-1,766		4,160		-2,528
	Cash flows from investing activities:
	Net cash from acquisition of NEBS		-		118		-
	Capital contributions to venture capital fund		-34		-131		-100
	Principal payments on ESOP loans		-		624		605
	Net cash (used in) provided by investing activities		-34		611		505
	Cash flows from financing activities:
	Return of capital from United Bank		17,212		17,844		84
	Tax benefit from MRP vesting		73		29		91
	Tax withheld on options exercised		-685		-102		-55
	Treasury stock purchases		-7,550		-5,660		-6,780
	Reissuance of treasury shares in connection with restricted stock warrants		-		-		426
	Reissuance of treasury shares in connection with stock options exercised		293		97		89
	Cash paid for in the money stock options exercised		-		-		-2
	Cash dividends paid		-8,496		-5,521		-5,067
Net cash provided by (used in) financing activities		847		6,687		-11,214
(Decrease) increase in cash and cash equivalents		-953		11,458		-13,237
Cash and cash equivalents at beginning of period		16,642		5,184		18,421
Cash and cash equivalents at end of period	$	15,689	$	16,642	$	5,184
Supplemental Disclosure of Cash Flow Information:
Cash paid during the period:
Income taxes – net	$	5,500	$	5,775	$	4,850
Non-cash item:
Transfer of treasury shares to pay-off ESOP loan	$	-	$	10,447	$	-

Quarterly_Results_of_Operation

Quarterly Results of Operations (Unaudited)	15 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Quarterly Results of Operations (Unaudited)	'
	NOTE R – QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)
	The following table summarizes the operating results on a quarterly basis for the years ended December 31, 2013 and 2012.
			Three Months Ended
			March 31			June 30			September 30			December 31
	2013:00:00
	Interest income		$	24,387		$	23,549		$	23,226		$	23,131
	Interest expense			3,894			3,850			3,880			3,779
	Net interest income			20,493			19,699			19,346			19,352
	Provision for loan losses			950			892			1,125			1,125
	Non-interest income			2,798			3,015			2,976			3,239
	Non-interest expense			15,850	(1)		16,269	(1)		14,836			16,007	(1)
	Income before income taxes			6,491			5,553			6,361			5,459
	Income tax expense			1,790			1,504			1,714			1,454
	Net income		$	4,701		$	4,049		$	4,647		$	4,005
	Basic earnings per share		$	0.23		$	0.21		$	0.24		$	0.2
	Diluted earnings per share		$	0.23		$	0.2		$	0.23		$	0.2
	Dividends paid per share		$	0.1		$	0.11		$	0.11		$	0.11
	2012:00:00
	Interest income		$	16,971		$	16,999		$	17,070		$	20,131
	Interest expense			3,871			3,705			3,520			3,896
	Net interest income			13,100			13,294			13,550			16,235
	Provision for loan losses			650			750			1,050			689
	Non-interest income			2,573			2,570			2,511			2,969
	Non-interest expense			11,275			11,468	(1)		11,192	(1)		22,305	(1)
	Income (loss) before income taxes			3,748			3,646			3,819			-3,790
	Income tax expense			899			1,064			890			942
	Net income (loss)		$	2,849		$	2,582		$	2,929		$	-4,732
	Basic earnings per share		$	0.19		$	0.18		$	0.2		$	-0.28
	Diluted earnings per share		$	0.19		$	0.17		$	0.2		$	-0.28
	Dividends paid per share		$	0.09		$	0.09		$	0.1		$	0.1
	-1	Includes merger-related expenses of $158, $123 and $598 for the quarters ended March 31, June 30 and December 31, 2013 and $592, $366 and $3,994 for the quarters ended June 30, September 30 and December 31, 2012, respectively, branch closing costs of $510 and $477 for the quarters ended March and June 30, 2013, respectively, an ESOP plan termination expense of $4,482 and FHLBB prepayment penalties of $207 for the quarter ended December 31, 2012.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	15 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Use of Estimates	'
	Use of Estimates
	In preparing consolidated financial statements in conformity with U.S. GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the date of the balance sheet and reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change are the determination of the allowance for loan losses, other-than-temporary impairment of securities, goodwill, fair value of financial instruments, and income taxes.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	The Company classifies cash and due from banks, interest-bearing deposits in other banks and overnight funds sold as cash and cash equivalents as these liquid assets have maturities at date of purchase of 90 days or less.
Investment Securities	'
	Investment Securities
	Debt securities that management has the positive intent and ability to hold to maturity are classified as “held to maturity” and recorded at amortized cost. Securities that are held principally for the purpose of trading in the near term are classified as “trading securities.” Trading securities are carried at fair value, with unrealized gains and losses recognized in earnings. Securities not classified as held to maturity or trading, including equity securities with readily determinable fair values, are classified as “available for sale” and recorded at fair value, with unrealized gains and losses excluded from earnings and reported in other comprehensive income.
	Purchase premiums and discounts are recognized in interest income using the level yield method over the terms of the securities. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.
	Each reporting period, the Company evaluates all securities classified as available-for-sale or held-to-maturity with a decline in fair value below the amortized cost of the investment to determine whether or not the impairment is deemed to be other-than-temporary (“OTTI”).
	OTTI is required to be recognized if (1) the Company intends to sell the security; (2) it is “more likely than not” that the Company will be required to sell the security before recovery of its amortized cost basis; or (3) for debt securities, the present value of expected cash flows is not sufficient to recover the entire amortized cost basis. Marketable equity securities are evaluated for OTTI based on the severity and duration of the impairment and, if deemed to be other-than-temporary, the declines in fair value are reflected in earnings as realized losses. For impaired debt securities that the Company intends to sell, or more likely than not will be required to sell, the full amount of the depreciation is recognized as OTTI through earnings. For all other impaired debt securities, credit-related OTTI is recognized through earnings and non-credit related OTTI is recognized in other comprehensive income, net of applicable taxes.
Federal Home Loan Bank stock	'
	Federal Home Loan Bank stock
	The Company, as a member of the Federal Home Loan Bank of Boston (the “FHLBB”), is required to maintain an investment in capital stock of the FHLBB. Based on redemption provisions of the FHLBB, the stock has no quoted market value and is carried at cost. At its discretion, the FHLBB may declare dividends on the stock. Management reviews its investment in FHLBB stock for other-than-temporary impairment based upon an assessment of the ultimate recoverability of the par value. Management concluded that no other-than-temporary impairment charge was necessary as of December 31, 2013.
Significant Group Concentrations of Credit Risk	'
	Significant Group Concentrations of Credit Risk
	A substantial portion of the Company’s loans are secured by real estate in Hampden, Hampshire and Worcester Counties of Massachusetts and Hartford, Tolland and New Haven Counties of Connecticut. Accordingly, the ultimate collectability of the Company’s loan portfolio is susceptible to changing conditions in these market areas. Note E discusses the types of lending that the Company engages in. The Company does not have any significant concentrations in any one industry or customer.
Loans	'
	Loans
	The Company’s loan portfolio includes commercial and industrial (“C&I”), commercial real estate, construction, business banking C&I and commercial real estate, residential real estate, home equity and consumer segments. Loans are stated at their unpaid principal balance net of unearned loan fees and costs and the allowance for loan losses.
	Interest on most loans is included in income as earned based upon interest rates applied to unpaid principal using the simple interest method. Accrual of interest on loans is discontinued when in the judgment of management the collectibility of principal or interest becomes doubtful or when a loan becomes contractually past due 90 days with respect to principal or interest. Past due status is based on the contractual terms of the loan. The accrual of interest on residential mortgage loans, however, may continue even though they are 90 days past due if management deems it appropriate, provided that the loans are well secured and in the process of collection. In all cases, loans are placed on non-accrual or charged-off at an earlier date if collection of principal or interest is considered doubtful.
	When a loan is placed on non-accrual status, all interest previously accrued is reversed against current period interest income. Interest subsequently received on non-accrual loans is either applied against principal or recorded as income based on management’s judgment as to the collectibility of principal. Interest accruals are resumed on such loans only when they are brought fully current as to principal and interest and when, in the judgment of management, the loans are estimated to be fully collectible.
	Loan origination and commitment fees and certain direct loan origination costs are deferred and the net amount is amortized over the contractual term of the loan as an adjustment of yield. In addition, discounts related to fair value adjustments for loan receivables acquired in a business combination or asset purchase are accreted into earnings over the contractual term as an adjustment of yield. If acquired loans experience credit quality deterioration after acquisition, the Company evaluates the difference between the contractually required payments at acquisition and the cash flows expected to be collected. Changes in the expected cash flows from the date of acquisition will impact the accretable yield and may also result in a charge to the provision for loan losses to the extent the cash flow shortfall is greater than the non-accretable amount.
Allowance for Loan Losses	'
	Allowance for Loan Losses
	The allowance for loan losses is established as losses are estimated to have occurred through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. The adequacy of the allowance for loan losses is evaluated on a quarterly basis by management. Factors considered in evaluating the adequacy of the allowance include prior loss experience, current economic conditions and their effect on borrowers, the composition and size of the loan portfolio, trends in nonperforming loans, classified assets, and delinquency rates and the performance of individual loans in relation to contractual terms. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. In addition, various regulatory agencies, as an integral part of their examination process, periodically review the allowance for loan losses. Such agencies may require the Company to recognize additions to the allowance based on judgments different from those of management.
	A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, 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. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan’s effective interest rate, the loan’s obtainable market price, or the fair value of the collateral if the loan is collateral dependent.
	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 restructure (“TDR”). This usually includes a modification of loan terms, such as a reduction of the interest rate to below market terms, capitalizing past due interest or extending the maturity date or a partial forgiveness of debt. Restructured loans are returned to accrual status after the borrower demonstrates the ability to pay under the restructured terms through a sustained period of repayment performance, which is generally six months. All TDRs are initially classified as impaired.
	The allowance consists of specific, general and unallocated components, as further described below.
Specific component	'
	Specific component
	The specific component relates to loans that are classified as impaired. A specific allowance is established when the discounted cash flows (or collateral value) of the impaired loan is lower than the carrying value of the loan. Groups of smaller balance homogenous loans are collectively evaluated for impairment. Accordingly, the Company does not separately identify individual residential real estate, home equity and consumer loans for impairment disclosures, unless such loans are subject to a troubled debt restructuring agreement.
	The Company has established a Business Banking unit within its Commercial Lending Department. The portfolio is made up of both commercial and industrial loans less than $250 and commercial real estate loans less than $500 which are managed by exception. This grouping of loans is considered a homogenous pool of loans and collectively evaluated for impairment. Accordingly, the Company does not separately identify individual loans within this unit for impairment disclosures, unless such loans are subject to a troubled debt restructuring agreement.
General component	'
	General component
	The general component is based on historical loss experience adjusted for qualitative factors stratified by the following loan segments: C&I, commercial real estate, construction, business banking C&I and commercial real estate, residential real estate, home equity and consumer. Management uses an average of historical losses based on a time frame appropriate to capture relevant loss data for each loan class. This historical loss factor for each loan class is adjusted for the following qualitative factors: the levels/trends in delinquencies and non-accruals; levels and trends in charge-offs and recoveries; trends in volume and terms of loans; effects of changes in risk selection and underwriting standards and other changes in lending policies, procedures and practices; experience, ability and depth of lending management and staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentrations. This analysis establishes factors that are applied to each loan class to determine the amount of the general component of the allowance for loan losses. There were no changes in the Company’s policies or methodology pertaining to the general component of the allowance for loan losses during 2013.
	The qualitative factors are determined based on the various risk characteristics of each loan segment. Relevant risk characteristics are as follows:
	Commercial and industrial loans (including business banking) – Loans in these segments are made to businesses. Generally these loans are secured by assets of the business and repayment is expected from the cash flows of the business. A weakened economy, and resultant decreased consumer and/or business spending, may have an effect on the credit quality in these loan segments.
	Commercial real estate (including business banking) – Loans in these segments include income-producing investment properties and owner-occupied real estate used for business purposes. The underlying properties are generally located in our primary market area. The cash flows of the income-producing investment properties may be adversely impacted by a downturn in the economy as vacancy rates may increase, which in turn, will have an effect on credit quality. Generally management obtains annual financial information for borrowers with loans in excess of $250 in these segments. In the case of owner-occupied real estate used for business purposes, a weakened economy and resultant decreased consumer and/or business spending may have an adverse effect on credit quality.
	Construction loans – Loans in this segment primarily include land loans to local individuals, contractors and developers for developing the land for sale or for making improvements thereon. Repayment is derived from sale of the lots/units including any pre-sold units. Credit risk is affected by market conditions, time to sell at an adequate price, whether initial estimates of value are accurate and cost overruns. To a lesser extent this class includes commercial development projects we finance which in most cases have an interest-only phase during construction and then convert to permanent financing. Credit risk is affected by cost overruns, market conditions and the availability of permanent financing, to the extent such permanent financing is not being provided by us.
	Residential real estate – Loans in this segment are made to and secured by one- to four-family owner-occupied residential real estate and repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan class. The Company generally does not originate loans with a loan-to-value ratio greater than 95 percent and does not originate subprime loans.
	Home equity loans – Loans in this segment are made to and secured by one- to four-family owner occupied residential real estate and repayment is dependent on the credit quality of the individual borrower. The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan segment.
	Consumer loans – Loans in this segment may be either secured or unsecured and repayment is dependent on the credit quality of the individual borrower and, if applicable, sale of the collateral securing the loan (such as automobile or mobile home). The overall health of the economy, including unemployment rates and housing prices, may have an effect on the credit quality in this loan segment.
	Loans acquired with evidence of credit quality deterioration since origination and for which it is probable at purchase that the Company will be unable to collect all contractually required payments are accounted for as required by and in accordance with the Receivables Topic of Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”), “Loans and Debt Securities Acquired with Deteriorating Credit Quality” (ASC 310). Evidence of credit quality deterioration as of the purchase date may include statistics such as past due status, refreshed borrower credit scores and refreshed loan-to-value (“LTV”), some of which are not immediately available as of the purchase date. The Company continues to evaluate this information and other credit-related information as it becomes available. ASC 310 addresses accounting for differences between contractual cash flows and cash flows expected to be collected from the Company’s initial investment in loans if those differences are attributable, at least in part, to credit quality.
	The initial fair values for loans within the scope of ASC 310 are determined by discounting both principal and interest cash flows expected to be collected using an observable discount rate for similar instruments with adjustments that management believes a market participant would consider in determining fair value. The Company estimates the cash flows expected to be collected at acquisition using internal credit risk, interest rate and prepayment risk models that incorporate management’s best estimate of current key assumptions, such as default rates, loss severity and payment speeds.
Unallocated component	'
	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.
Reserve for Unfunded Commitments	'
	Reserve for Unfunded Commitments
	The Company also maintains a reserve for unfunded credit commitments to provide for the risk of loss inherent in these arrangements. The reserve is determined using a methodology similar to the analysis of the allowance for loan losses, taking into consideration probabilities of future funding requirements. The reserve for unfunded commitments is included in other liabilities and was $142 and $213 at December 31, 2013 and 2012.
Goodwill	'
	Goodwill
	Goodwill is measured as the excess of the cost of a business acquisition over the sum of the amounts assigned to identifiable tangible and intangible assets acquired less liabilities assumed. Goodwill is not amortized but is assessed for impairment annually or more frequently if circumstances warrant.
	Management has the option of first assessing qualitative factors, such as events and circumstances, to determine whether it is more likely than not, meaning a likelihood of more than 50%, that the value of a reporting unit is less than its carrying amount. If, after considering all relevant events and circumstances, management determines it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing an impairment test is unnecessary. For the year ended December 31, 2013, management determined that it was not more likely than not that the fair value of the reporting unit (the consolidated Company) was less than its carrying amount. If management had determined otherwise, the following two-step process would have been completed to determine the impairment and necessary write-down of goodwill.
	The first step (“Step 1”) is used to identify potential impairment, and involves comparing the reporting unit’s estimated fair value to its carrying amount, including goodwill. If the estimated fair value of the reporting unit exceeds its carrying amount, goodwill is not deemed to be impaired. Should the carrying amount of the reporting unit exceed its estimated fair value, an indicator of impairment is deemed to exist and a second step is performed to measure the amount of such impairment, if any. The second step (“Step 2”) involves calculating the implied fair value of goodwill. The implied fair value of goodwill is determined in a manner similar to how the amount of goodwill is determined in a business combination (i.e. by measuring the excess of the estimated fair value, as determined in Step 1, over the aggregate estimated fair values of the individual assets, liabilities, and identifiable intangibles as of the impairment testing date). If the implied fair value of goodwill exceeds the carrying amount of goodwill assigned to the reporting unit, no impairment exists. If the carrying amount of goodwill exceeds the implied fair value of the goodwill, an impairment loss is recorded in an amount equal to such excess. An impairment loss cannot exceed the carrying amount of goodwill, and the loss (write-down) establishes a new carrying amount for the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Application of the goodwill impairment test requires significant judgments including estimation of future cash flows, which are dependent on internal forecasts, estimation of the long-term rate of growth, the period over which cash flows will occur, and determination of our cost of capital. Changes in these estimates and assumptions could materially affect the determination of fair value and/or conclusions related to goodwill impairment.
Business Segments	'
	Business Segments
	As a community oriented financial institution, substantially all of the Company’s operations involve the delivery of loan and deposit products to customers. Management makes operating decisions and assesses performance based on an ongoing review of these community-banking operations, which constitutes the Company’s only operating segment for financial reporting purposes.
Bank-owned Life Insurance	'
	Bank-owned Life Insurance
	Bank-owned life insurance policies are reflected on the consolidated balance sheets at cash surrender value net of any deferred fees or loans. Changes in the net cash surrender value of the policies, as well as insurance proceeds received, are reflected in non-interest income on the consolidated statements of net income and are not subject to income taxes.
Off-balance Sheet Financial Instruments	'
	Off-balance Sheet Financial Instruments
	In the ordinary course of business, the Company enters into off-balance sheet financial instruments, consisting primarily of credit related financial instruments. These financial instruments are recorded in the consolidated financial statements when they are funded or related fees are incurred or received.
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per share have been calculated by dividing net income by weighted average shares outstanding before any dilution and adjusted to exclude the weighted average number of unallocated shares held by the United Bank Employee Stock Ownership Plan (the “ESOP”). Diluted earnings per share have been calculated by dividing net income by weighted average shares outstanding after giving effect to the potential dilution that could occur if potential common shares were converted into common stock using the treasury stock method.
Other Real Estate Owned	'
	Other Real Estate Owned
	Other real estate owned (“OREO”) is comprised of properties acquired through foreclosure proceedings or acceptance of a deed in lieu of foreclosure. OREO is held for sale and is initially recorded at fair value, less cost to sell, at the date of foreclosure, establishing a new cost basis. Losses arising from the acquisition of such properties are charged against the allowance for loan losses. Operating expenses are charged to current period operations as incurred. Gains and losses upon disposition are reflected in income as realized.
	Foreclosed assets held for sale are recorded at the lower of fair value less estimated costs to sell or cost. Subsequent changes in the fair value of the foreclosed assets are reflected through a valuation allowance.
Premises and Equipment	'
	Premises and Equipment
	Land is carried at cost. Buildings and equipment are stated at cost less accumulated depreciation. Depreciation is computed for financial reporting purposes on the straight-line method over the estimated useful life of each type of asset. Leasehold improvements are amortized on the straight-line method over the shorter of the lease term, including consideration of renewal options, or the estimated useful life of the asset. The cost of maintenance and repairs is charged against income as incurred. The Company reviews for possible impairment of long-lived assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable.
Transfers of Financial Assets	'
	Transfers of Financial Assets
	Transfers of an entire financial asset, a group of entire financial assets, or a participating interest in an entire financial asset are accounted for as sales when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (1) the assets have been isolated from the Company, (2) the transferee obtains the right to pledge or exchange the transferred assets, and (3) the Company does not maintain effective control over the transferred assets.
	During the normal course of business, the Company may transfer a portion of a financial asset, for example, a participation loan or the government guaranteed portion of a loan. In order to be eligible for sales treatment, the transfer of the portion of the loan must meet the criteria of a participating interest. If it does not meet the criteria of a participating interest, the transfer must be accounted for as a secured borrowing. In order to meet the criteria for a participating interest, all cash flows from the loan must be divided proportionately, the rights of each loan holder must have the same priority, the loan holders must have no recourse to the transferor other than standard representations and warranties and no loan holder has the right to pledge or exchange the entire loan.
Securities Sold Under Agreements to Repurchase	'
	Securities Sold Under Agreements to Repurchase
	The Company accounts for securities sold under agreements to repurchase as secured borrowings as the Company maintains effective control over the transferred assets. Securities sold under agreements to repurchase are reflected at the amount of cash received in connection with the transaction. The Company may be required to provide additional collateral based on the fair value of the underlying securities.
Retirement Benefits	'
	Retirement Benefits
	The Company has established a defined contribution plan for eligible employees. The Company matches employee contributions up to 5% of an employee’s qualified compensation.
	In 2007, the Company established an unfunded Supplemental Executive Retirement Plan (“SERP”) for certain employees that provides benefits that cannot be paid from a qualified retirement plan due to Internal Revenue Code restrictions. This plan is nonqualified under the Internal Revenue Code and assets used to fund benefit payments are not segregated from other assets of the Company. Therefore, in general, a participant’s or beneficiary’s claim to benefits under these plans is as a general creditor. The Company recognizes the plan’s un-funded status as a liability with an offsetting adjustment to Accumulated Other Comprehensive Income (“AOCI”) to the extent not previously recognized in earnings. Actuarial gains and losses and prior service costs or credits are recognized as a component of AOCI.
	As part of the acquisition of New England Bancshares, Inc. (further described in Note B), the Company assumed a defined benefit multi-employer pension plan. Disclosures for this plan are provided in Note M.
Income Taxes	'
	Income Taxes
	The Company recognizes income taxes under the asset and liability method. Under this method, deferred tax assets and liabilities are established for the tax consequences attributable to the temporary differences between the financial statement carrying amount and the tax bases of the Company’s assets and liabilities and certain tax carryforwards at enacted tax rates.
	The provision for deferred income taxes is the result of changes in deferred tax assets and liabilities. A valuation allowance is recorded against deferred tax assets when management deems a portion of the asset to be more likely than not unrealizable. The Company’s valuation allowance is reviewed and adjustments are made to the valuation allowance based on management’s judgments relating to the realizability of the deferred tax asset. It is management’s belief that it is more likely than not that the reversal of deferred tax liabilities and results of future operations will generate sufficient taxable income to realize the deferred tax assets. Therefore, no valuation allowance was necessary at December 31, 2013 or 2012 for deferred tax assets.
	The Company may recognize the tax benefit from an uncertain tax position only if it is more likely than not the tax position will be sustained on examination by the taxing authorities, based on the technical merits of the position. The tax benefits recognized in the financial statements from such a position are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate resolution. The Company reports interest and penalties associated with tax obligations in other non-interest expense. The Company does not have any uncertain tax positions at December 31, 2013 and 2012 which require accrual or disclosure.
	The Company’s income tax returns are subject to review and examination by federal and state taxing authorities. The Company is currently open to audit under the applicable statutes of limitations by the Internal Revenue Service for the years ended December 31, 2010 through 2013. The years open to examination by state taxing authorities vary by jurisdiction. No years prior to 2010 are open.
Stock Compensation Plan	'
	Stock Compensation Plan
	Share-based compensation costs are based on the grant date fair value and these costs are recognized over the requisite vesting period. For all of our stock option grants, the fair value of each grant was estimated at the date of grant using the Black-Scholes option pricing model. Black-Scholes utilizes assumptions related to volatility, the risk-free interest rate, the dividend yield and employee exercise behavior. Expected volatilities utilized in the model are based on the historic volatility of the Company’s stock price. The risk free interest rate is derived from the U.S. Treasury Yield curve in effect at the time of the grant. The model incorporates exercise and post-vesting forfeiture assumptions based on an analysis of historical data.
Employee Stock Ownership Plan	'
	Employee Stock Ownership Plan
	The Company’s ESOP was terminated on December 31, 2012. Prior to this, compensation expense for the ESOP was recorded at an amount equal to the shares allocated by the ESOP multiplied by the average fair market value of the shares during the period. The Company recognized compensation expense ratably over the year based upon the Company’s estimate of the number of shares expected to be allocated by the ESOP. Unearned compensation applicable to the ESOP was reflected as a reduction of stockholders’ equity in the consolidated balance sheets. The difference between the average fair market value and the cost of the shares allocated by the ESOP was recorded as an adjustment to additional paid-in capital. Cash dividends received on shares held in suspense were applied to the scheduled annual debt payment.
Treasury Stock	'
	Treasury Stock
	Common stock shares repurchased are recorded as treasury stock at cost.
Comprehensive Income	'
	Comprehensive Income
	Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities, are reported as a separate component of stockholders’ equity, such items, along with net income, are components of comprehensive income.
	The components of accumulated other comprehensive income (loss) are as follows:
	December 31, 2013:	Gross		Tax		Net of
		Amount		Effect		Tax
	Unrealized loss on securities available for sale	$	-501	$	213	$	-288
	Pension liability		-1,358		555		-803
	Total accumulated other comprehensive loss	$	-1,859	$	768	$	-1,091
	December 31, 2012:	Gross		Tax		Net of
		Amount		Effect		Tax
	Unrealized gain on securities available for sale	$	10,147	$	-3,847	$	6,300
	Pension liability		-1,432		533		-899
	Total accumulated other comprehensive income	$	8,715	$	-3,314	$	5,401
Advertising Costs	'
	Advertising Costs
	Advertising costs are expensed as incurred.
Reclassifications	'
	Reclassifications
	Amounts reported for prior periods are reclassified as necessary to be consistent with the current-period presentation.
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This Update requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component. In addition, entities are required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line item of net income. The Company adopted this ASU in the first quarter of 2013 and there was no impact on the Company’s consolidated financial results as the amendments relate only to disclosures in the consolidated financial statements.
	In July 2013, the FASB issued ASU 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (a consensus of the FASB Emerging Issues Task Force). This Update provides that an unrecognized tax benefit, or a portion thereof, should be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from disallowance of a tax position, or the tax law does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented as a liability. This ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Company does not expect that the adoption of this ASU will have an impact on the Company’s consolidated financial statements.
	In January 2014, the FASB issued ASU No. 2014-01, Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects. This update eliminates the effective yield election and permits reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). Those not electing the proportional amortization method would account for the investment using the equity method or cost method. The amendments in this ASU should be applied retrospectively to all periods presented. The amendments in this ASU are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. The Company is currently evaluating the impact of adopting this ASU, but does not expect that it will have a material effect on the Company’s consolidated financial statements.
	In January 2014, the FASB issued ASU No. 2014-04, Receivables-Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure. The amendments in this Update clarify that an in substance repossession or foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. Additionally, the amendments require interim and annual disclosure of both (1) the amount of foreclosed residential real estate property held by the creditor and (2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendments in this Update are effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. Early adoption is permitted. The Company is currently evaluating the impact if adopting this ASU, but does not expect that it will have a material effect on the Company’s consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	15 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Components of Accumulated Other Comprehensive Income (Loss)	'
	The components of accumulated other comprehensive income (loss) are as follows:
	December 31, 2013:	Gross		Tax		Net of
		Amount		Effect		Tax
	Unrealized loss on securities available for sale	$	-501	$	213	$	-288
	Pension liability		-1,358		555		-803
	Total accumulated other comprehensive loss	$	-1,859	$	768	$	-1,091
	December 31, 2012:	Gross		Tax		Net of
		Amount		Effect		Tax
	Unrealized gain on securities available for sale	$	10,147	$	-3,847	$	6,300
	Pension liability		-1,432		533		-899
	Total accumulated other comprehensive income	$	8,715	$	-3,314	$	5,401

Mergers_Tables

Mergers (Tables)	15 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Summary of Estimated Fair Value of 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:
	Cash	$	68,926
	Investments		53,430
	Loans		553,983
	Premises and equipment		5,985
	Goodwill		31,660
	Core deposit intangible		3,730
	Other real estate owned		1,471
	Other assets		26,629
	Total Assets Acquired		745,814
	Liabilities:
	Deposits		596,994
	Borrowings		63,533
	Other liabilities		3,783
	Total Liabilities Assumed		664,310
	Net Assets Acquired	$	81,504

Investment_Securities_Tables

Investment Securities (Tables)	15 Months Ended
	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Amortized Cost and Fair Values of Securities Classified as Available for Sale and Held to Maturity	'
	The amortized cost and fair values of securities classified as available for sale and held to maturity are as follows:
		Amortized		Unrealized
		Cost		Gain		Losses		Fair Value
	Securities Available for Sale
	December 31, 2013:
	Debt Securities:
	Government-sponsored enterprises	$	2,099	$	-	$	-248	$	1,851
	Government-sponsored and government- guaranteed mortgage-backed securities		236,004		4,836		-4,386		236,454
	Municipal bonds		25,902		269		-1,453		24,718
	Corporate bonds		1,125		481		-		1,606
	Total	$	265,130	$	5,586	$	(6,087)	$	264,629
	Securities Available for Sale
	December 31, 2012:
	Debt Securities:
	Government-sponsored enterprises	$	3,234	$	2	$	-3	$	3,233
	Government-sponsored and government- guaranteed mortgage-backed securities		248,370		9,836		-444		257,762
	Private label mortgage-backed securities		2,568		54		-56		2,566
	Municipal bonds		28,713		595		-481		28,827
	Corporate bonds		1,290		644		-		1,934
	Total	$	284,175	$	11,131	$	-984	$	294,322
		Amortized		Unrealized
		Cost		Gain		Losses		Fair Value
	Securities Held to Maturity
	December 31, 2013:
	Government-sponsored and government- guaranteed mortgage-backed securities	$	78,686	$	1,130	$	-767	$	79,049
	Private label mortgage-backed securities		50		1		-		51
	Industrial revenue bonds		26,361		-		-		26,361
	State of Israel bonds		175		-		-		175
	Municipal bonds		5,913		166		-		6,079
	Total	$	111,185	$	1,297	$	-767	$	111,715
	Securities Held to Maturity
	December 31, 2012:
	Government-sponsored and government- guaranteed mortgage-backed securities	$	57,986	$	2,214	$	-	$	60,200
	Private label mortgage-backed securities		79		2		-		81
	Industrial revenue bonds		18,847		-		-		18,847
	State of Israel bonds		150		-		-		150
	Municipal bonds		5,924		472		-		6,396
	Total	$	82,986	$	2,688	$	-	$	85,674
Gross Continuous Unrealized Losses and Fair Values	'
	Gross unrealized losses and fair values at December 31, 2013 and 2012 aggregated by investment category and the length of time that individual securities have been in a continuous unrealized loss position follow:
		Less than 12 months				12 months or longer				Total
		Fair Value		Unrealized		Fair Value		Unrealized		Number of		Fair Value		Unrealized
				Losses				Losses		Securities				Losses
	2013:00:00
	Securities Available for Sale
	Debt Securities:
	Government-sponsored enterprises	$	1,851	$	-248	$	-	$	-		5	$	1,851	$	-248
	Government-sponsored and government- guaranteed mortgage-backed securities		101,067		-3,206		32,066		-1,180		132		133,133		-4,386
	Municipal bonds		8,208		-476		10,963		-977		47		19,171		-1,453
	Total	$	111,126	$	(3,930)	$	43,029	$	(2,157)		184	$	154,155	$	(6,087)
	Securities Held to Maturity
	Government-sponsored and government- guaranteed mortgage-backed securities	$	36,488	$	-767	$	-	$	-		10	$	36,488	$	-767
	Total	$	36,488	$	-767	$	-	$	-		10	$	36,488	$	-767
		Less than 12 months				12 months or longer				Total
		Fair Value		Unrealized		Fair Value		Unrealized		Number of		Fair Value		Unrealized
				Losses				Losses		Securities				Losses
	2012:00:00
	Securities Available for Sale
	Debt Securities:
	Government-sponsored enterprises	$	1,998	$	-3	$	-	$	-		5	$	1,998	$	-3
	Government-sponsored and government- guaranteed mortgage-backed securities		41,537		-444		-		-		81		41,537		-444
	Private label mortgage-backed securities		1,671		-56		-		-		9		1,671		-56
	Municipal bonds		16,293		-481		-		-		38		16,293		-481
	Total	$	61,499	$	-984	$	-	$	-		133	$	61,499	$	-984
Scheduled of Realized Gains and Losses and Proceeds from Sales of Securities	'
	Realized gains and losses and the proceeds from sales of securities available for sale are as follows for the years ended December 31:
		2013		2012		2011
	Proceeds from sales/calls	$	6,262	$	7,846	$	2,500
	Gross gains		309		267		1
	Gross losses		-82		-13		-
Scheduled Maturities of Debt Securities Held to Maturity and Available for Sale	'
	The scheduled maturities of debt securities held to maturity and available for sale at December 31, 2013, are shown below. Actual maturities will differ from contractual maturities because issuers generally have the right to call or prepay obligations with or without call or prepayment penalties.
		At December 31, 2013
		Securities				Securities Held to
		Available for Sale				Maturity
		Amortized		Fair Value		Amortized		Fair Value
		Cost				Cost
	Due in one year or less	$	-	$	-	$	125	$	125
	Due from one year to five years		2,096		2,155		810		843
	Due from five years to ten years		15,870		15,237		1,534		1,582
	Due after ten years		11,160		10,783		29,980		30,065
			29,126		28,175		32,449		32,615
	Mortgage-backed securities		236,004		236,454		78,736		79,100
		$	265,130	$	264,629	$	111,185	$	111,715

Loans_Net_Tables

Loans, Net (Tables)	15 Months Ended
	Dec. 31, 2013
Summary of Components of Loans	'
	The components of loans are as follows at December 31:
			2013		2012
	Commercial:
	Commercial and industrial		$	293,094	$	306,192
	Commercial real estate			862,596		814,692
	Construction			62,811		52,778
	Consumer:
	Residential real estate			466,604		441,874
	Home equity			179,502		179,039
	Consumer			17,232		21,501
	Total loans			1,881,839		1,816,076
	Net deferred loan costs and fees			2,640		3,414
	Allowance for loan losses			-13,413		-12,089
	Loans, net		$	1,871,066	$	1,807,401
Summary of Lending Activity with Directors and Executive Officers	'
	The following table summarizes the Company’s lending activity with its directors and executive officers all of which was conducted with terms consistent with those offered to unrelated parties:
			December 31,
			2013		2012
	Beginning balance		$	3,305	$	2,230
	New loans			361		1,670
	Repayments			-487		-595
	Ending balance		$	3,179	$	3,305
Summary of Activity Pertaining to Allowance for Loan Losses	'
	A summary of the activity pertaining to the allowance for loan losses for the years ended December 31, 2013, 2012 and 2011 is as follows:
			Commercial		Commercial			Construction		Business Banking
			and Industrial		Real Estate					Commercial		Commercial		Residential		Home		Consumer		Unallocated		Total
										and		Real Estate				Equity
										Industrial
	Balance at December 31, 2010		$	2,801	$	5,000		$	668	$	-	$	-	$	740	$	623	$	155	$	-	$	9,987
	Charge-offs			-1,556		-589			-78		-		-		-139		-24		-6		-		-2,392
	Recoveries			235		52			3		-		-		-		-		5		-		295
	Provision (credit)			1,966		1,109			267		-		-		65		-125		-40		-		3,242
	Balance at December 31, 2011			3,446		5,572			860		-		-		666		474		114		-		11,132
	Charge-offs			-637		-870			-127		-128		-52		-246		-225		-79		-		-2,364
	Recoveries			125		45			1		2		-		-		-		9		-		182
	Provision (credit)			-254		750			-24		914		758		182		134		39		640		3,139
	Balance at December 31, 2012			2,680		5,497			710		788		706		602		383		83		640		12,089
	Charge-offs			-839		-1,349			-		-123		-122		-389		-89		-67		-		-2,978
	Recoveries			25		90			-		-		-		60		6		29		-		210
	Provision (credit)			1,189		2,070			385		-11		-51		532		74		18		-114		4,092
	Balance at December 31, 2013		$	3,055	$	6,308		$	1,095	$	654	$	533	$	805	$	374	$	63	$	526	$	13,413
Information Pertaining to Allowance for Loan Losses	'
	Further information pertaining to the allowance for loan losses at December 31, 2013 and 2012 is as follows:
										Business Banking
			Commercial		Commercial			Construction		Commercial		Commercial		Residential		Home Equity		Consumer		Unallocated		Total
			and Industrial		Real Estate					and		Real Estate
										Industrial
	At December 31, 2013:
	Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired		$	28	$	-		$	99	$	-	$	-	$	-	$	-	$	-	$	-	$	127
	Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment		$	3,027	$	6,308		$	996	$	654	$	533	$	805	$	374	$	63	$	526	$	13,286
	Financing Receivables:
	Total loans		$	261,692	$	787,103		$	62,811	$	31,402	$	75,493	$	466,604	$	179,502	$	17,232	$	-	$	1,881,839
	Loans individually evaluated for impairment and deemed to be impaired		$	4,107	$	8,212		$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	12,319
	Loans not deemed to be impaired and collectively evaluated for impairment		$	257,353	$	777,660		$	62,532	$	31,402	$	75,493	$	466,604	$	179,502	$	17,232	$	-	$	1,867,778
	Loans acquired with deteriorated credit quality and deemed to be impaired		$	232	$	1,231		$	279	$	-	$	-	$	-	$	-	$	-	$	-	$	1,742
										Business Banking
			Commercial		Commercial			Construction		Commercial		Commercial		Residential		Home Equity		Consumer		Unallocated		Total
			and Industrial		Real Estate					and		Real Estate
										Industrial
	At December 31, 2012:
	Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired		$	32	$	-		$	-	$	-	$	-	$	-	$	-	$	-	$	-	$	32
	Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment		$	2,648	$	5,497		$	710	$	788	$	706	$	602	$	383	$	83	$	640	$	12,057
	Financing Receivables:
	Total loans		$	272,789	$	732,272		$	52,778	$	33,403	$	82,420	$	441,874	$	179,039	$	21,501	$	-	$	1,816,076
	Loans individually evaluated for impairment and deemed to be impaired		$	5,943	$	3,882		$	591	$	-	$	-	$	-	$	-	$	-	$	-	$	10,416
	Loans not deemed to be impaired and collectively evaluated for impairment		$	266,091	$	722,470		$	51,838	$	33,403	$	82,420	$	441,874	$	179,039	$	21,501	$	-	$	1,798,636
	Loans acquired with deteriorated credit quality and deemed to be impaired		$	755	$	5,920		$	349	$	-	$	-	$	-	$	-	$	-	$	-	$	7,024
Summary of Past Due Loans	'
	The following is a summary of past due loans at December 31, 2013 and 2012:
			30-59 Days		60-89 Days			90 Days or		Total		Current		Total		90 Days
			Past Due		Past Due			More Past		Past Due				Financing		or More
								Due						Receivables		Past Due
																and
																Accruing
	At December 31, 2013:
	Commercial:
	Commercial and industrial		$	2,696	$	753		$	2,431	$	5,880	$	287,214	$	293,094	$	-
	Commercial real estate			6,169		2,841			4,909		13,919		848,677		862,596		-
	Construction			160		116			279		555		62,256		62,811		-
	Consumer:
	Residential real estate			8,292		2,525			3,180		13,997		452,607		466,604		-
	Home equity			1,074		239			1,157		2,470		177,032		179,502		-
	Consumer			329		129			64		522		16,710		17,232		-
	Total		$	18,720	$	6,603		$	12,020	$	37,343	$	1,844,496	$	1,881,839	$	-
	At December 31, 2012:
	Commercial:
	Commercial and industrial		$	3,974	$	1,155		$	4,442	$	9,571	$	296,621	$	306,192	$	-
	Commercial real estate			6,326		1,136			5,351		12,813		801,879		814,692		-
	Construction			2,853		-			-		2,853		49,925		52,778		-
	Consumer:
	Residential real estate			11,760		2,450			2,615		16,825		425,049		441,874		-
	Home equity			1,044		161			137		1,342		177,697		179,039		-
	Consumer			329		35			120		484		21,017		21,501		-
	Total		$	26,286	$	4,937		$	12,665	$	43,888	$	1,772,188	$	1,816,076	$	-
Summary of Impaired Loans	'
	The following is a summary of impaired loans at December 31, 2013 and 2012:
			At December 31, 2013							At December 31, 2012
			Recorded		Unpaid			Related		Recorded		Unpaid		Related
			Investment		Principal			Allowance		Investment		Principal		Allowance
					Balance							Balance
	With no related allowance recorded:
	Commercial:
	Commercial and industrial		$	3,449	$	3,471				$	6,666	$	6,997
	Commercial real estate			9,443		10,842					9,802		10,736
	Construction			-		-					940		940
	Consumer:
	Residential real estate			-		-					-		-
	Home Equity			-		-					-		-
	Consumer			-		-					-		-
	Total		$	12,892	$	14,313				$	17,408	$	18,673
	With an allowance recorded:
	Commercial and industrial			890		890		$	28		32		32	$	32
	Commercial real estate			-		-			-		-		-		-
	Construction			279		279			99		-		-		-
	Total		$	1,169	$	1,169		$	127	$	32	$	32	$	32
	Total impaired loans		$	14,061	$	15,482		$	127	$	17,440	$	18,705	$	32
Summary of Impaired and Non-Accrual Loans	'
	The following summaries of information pertaining to impaired and non-accrual loans:
			Year Ended December 31, 2013							Year Ended December 31, 2012
			Average		Interest Income					Average		Interest Income
			Recorded							Recorded
			Investment							Investment
			on							on
			Impaired							Impaired
			Loans		Recognized			Recognized		Loans		Recognized		Recognized
								on a Cash						on a Cash
								Basis						Basis
	Commercial:
	Commercial and industrial		$	5,985	$	512		$	332	$	4,725	$	21	$	21
	Commercial real estate			6,864		181			10		4,158		72		17
	Construction			693		7			-		735		25		-
	Consumer:
	Residential real estate			-		39			39		-		5		5
	Home Equity			-		9			9		-		-		-
	Consumer			-		2			2		-		1		1
	Total		$	13,542	$	750		$	392	$	9,618	$	124	$	44
			Year Ended December 31, 2011
			Average		Interest Income
			Recorded
			Investment
			on
			Impaired
			Loans		Recognized			Recognized
								on a Cash
								Basis
	Commercial:
	Commercial and industrial		$	3,580	$	36		$	36
	Commercial real estate			4,370		152			147
	Construction			1,011		40			28
	Consumer:
	Residential real estate			1,536		63			63
	Home Equity			82		7			7
	Consumer			94		7			7
	Total		$	10,673	$	305		$	288
Summary of Non-Accrual Loans	'
	The following is a summary of non-accrual loans as of December 31, 2013 and 2012:
			December 31,
			2013		2012
	Commercial:
	Commercial and industrial		$	2,663	$	5,538
	Commercial real estate			8,640		5,596
	Construction			279		349
	Consumer:
	Residential real estate			3,212		2,970
	Home equity			1,157		137
	Consumer			64		120
	Total		$	16,015	$	14,710
Modifications, Deemed to be Troubled Debt Restructures	'
	The following represents modifications that were deemed to be troubled debt restructures for the years ended December 31, 2013 and 2012:
			Number of		Outstanding Recorded Investment
			Contracts		Pre-Modification			Post-Modification
	Troubled Debt Restructurings
	For the Year Ended December 31, 2013:
	Commercial and industrial			3	$	2,013		$	1,580
	Commercial real estate			2		2,452			2,742
	Total			5	$	4,465		$	4,322
	For the Year Ended December 31, 2012:
	Commercial and industrial			1	$	140		$	140
	Commercial real estate			4		1,211			1,211
	Construction			2		613			613
	Total			7	$	1,964		$	1,964
Company's Loan Class by Internally Assigned Grades	'
	The following table presents the Company’s loan class by internally assigned grades:
			At December 31, 2013
			Commercial &		Commercial			Construction		Total
			Industrial		Real Estate
	Commercial:
	Grade:
	Pass		$	268,359	$	811,192		$	58,263	$	1,137,814
	Special Mention			6,175		24,185			1,428		31,788
	Substandard			18,495		27,219			3,120		48,834
	Doubtful			65		-			-		65
	Total		$	293,094	$	862,596		$	62,811	$	1,218,501
			Residential		Home Equity			Consumer		Total
	Consumer:
	Grade:
	Pass		$	463,392	$	178,344		$	17,168	$	658,904
	Special Mention			-		-			-		-
	Substandard			3,212		1,158			64		4,434
	Doubtful			-		-			-		-
	Total		$	466,604	$	179,502		$	17,232	$	663,338
			At December 31, 2012
			Commercial  &		Commercial			Construction		Total
			Industrial		Real Estate
	Commercial:
	Grade:
	Pass		$	275,279	$	762,240		$	46,196	$	1,083,715
	Special Mention			14,788		29,092			1,632		45,512
	Substandard			15,472		23,360			4,950		43,782
	Doubtful			653		-			-		653
	Total		$	306,192	$	814,692		$	52,778	$	1,173,662
			Residential		Home Equity			Consumer		Total
	Consumer:
	Grade:
	Pass		$	439,201	$	178,920		$	21,382	$	639,503
	Special Mention			-		-			-		-
	Substandard			2,673		119			119		2,911
	Doubtful			-		-			-		-
	Total		$	441,874	$	179,039		$	21,501	$	642,414
Summary of Acquired Impaired Loan Information of NEBS	'
	The following is a summary of loans acquired with evidence of credit deterioration from NEBS as of December 31, 2013:
			Contractual		Cash			Non-		Accretable		Loans
			Required		Expected			Accretable		Yield (2)		Receivable
			Payments		To Be			Discount
			Receivable		Collected (1)
	Balance at acquisition date of November 16, 2012		$	9,911	$	7,041		$	2,870	$	-	$	7,041
	2012 Collections			-17		-17			-		-		-17
	Balance as of December 31, 2012			9,894		7,024			2,870		-		7,024
	2013 Collections			-2		-2			-		-		-2
	Impairment			-		-329			329		-		-329
	Transfer to accretable yield			-		1,264			-1,268		1,268		1,264
	Transfer to business banking unit			-421		-421			-		-		-421
	Paid off			-2,934		-2,242			-688		-		-2,242
	Transfer to OREO			-637		-637			-		-		-637
	Charged off			-200		-200			-		-		-200
	Balance as of December 31, 2013		$	5,700	$	4,457		$	1,243	$	1,268	$	4,457
	-1	The Company has not factored any prepayments into the expected cash flows.
	-2	The Company has not yet recognized any of the accretable yield in earnings.
CNB Financial [Member]	'
Summary of Acquired Impaired Loan Information of CNB Financial	'
	The following is a summary of acquired impaired loan information for CNB Financial as of December 31, 2013:
			Contractual		Cash			Non-		Accretable		Loans
			Required		Expected			Accretable		Yield		Receivable
			Payments		To Be			Difference
			Receivable		Collected (1)
	Balance as of December 31, 2010		$	1,140	$	172		$	968	$	-	$	172
	2011 Collections			-37		-37			-		-		-37
	Impairment			-		-135	(2)		-		-		-135
	Transfer to accretable yield			-		-			-100		100		-
	Accretable yield recognized in earnings			-		-			-		-100		-
	Disposition			-1,103		-			-868		-		-
	Balance as of December 31, 2011, 2012 and 2013		$	-	$	-		$	-	$	-	$	-
	-1	The Company has not factored any prepayments into the expected cash flows.
	-2	Amount represents a full reserve against the remaining net book value of the loan due to uncollectibility.

Banking_Premises_and_Equipment1

Banking Premises and Equipment (Tables)	15 Months Ended
	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Composition of Banking Premises and Equipment	'
	The composition of banking premises and equipment is as follows at December 31:
		2013		2012		Estimated Useful Lives
	Land and improvements	$	4,182	$	3,642
	Buildings and improvements		17,864		15,140	25-40 Years
	Leasehold improvements		2,598		3,078	Lesser of useful life or term of lease
	Furniture and equipment		7,343		7,320	3-10Years
	Assets under capitalized leases		5,359		5,359	Lesser of lease term or useful life
			37,346		34,539
	Less accumulated depreciation and amortization		-11,760		-9,475
		$	25,586	$	25,064
Future Minimum Rental Commitments under Lease Terms	'
	Future minimum rental commitments under the terms of these leases are as follows:
		Operating		Capital		Total
		Leases		Leases
	Years ending December 31,
	2014	$	2,182	$	423	$	2,605
	2015		2,145		424		2,569
	2016		1,935		424		2,359
	2017		1,600		424		2,024
	2018		1,404		424		1,828
	Thereafter		10,468		4,804		15,272
	Total minimum lease payments	$	19,734		6,923	$	26,657
	Less interest included above				-2,384
	Capitalized lease obligations			$	4,539

Deposits_Tables

Deposits (Tables)	15 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Deposit Accounts	'
	Deposit accounts by type are summarized as follows at December 31:
			2013		2012
	Demand		$	342,000	$	307,302
	NOW			92,696		87,983
	Savings			342,605		350,188
	Money market			435,171		395,293
	Certificates of deposit			734,012		707,409
			$	1,946,484	$	1,848,175
Scheduled Maturities of Time Deposits	'
	At December 31, 2013, the scheduled maturities of time deposits are as follows:
			Time Deposits
			³ $100		< $100		Total (1)
	2014		$	231,928	$	196,164	$	428,092
	2015			90,908		77,119		168,027
	2016			32,794		16,844		49,638
	2017			28,732		24,720		53,452
	2018			22,015		9,828		31,843
	Total		$	406,377	$	324,675	$	731,052
	-1	Includes brokered deposits in the amount of $20,045 and excludes the unamortized fair value adjustment balance of $2,960 recorded in connection with the acquisition of NEBS.
Interest Expense on Deposits, Classified by Type	'
	Interest expense on deposits, classified by type, is as follows:
			Years Ended December 31,
			2013		2012		2011
	NOW		$	277	$	204	$	159
	Regular savings			1,196		1,328		1,694
	Money market			1,603		1,501		1,963
	Certificates of deposit			8,320		7,433		8,633
	Total		$	11,396	$	10,466	$	12,449

LongTerm_Debt_Tables

Long-Term Debt (Tables)	15 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of Advances Outstanding	'
	Advances outstanding (together with year of maturity) at December 31, 2013 and 2012 consisted of the following:
			2013				2012
			Amount (1)		Weighted		Amount (1)		Weighted
					Average Rate				Average Rate
	2013		$	-		-	$	39,914		4.05%
	2014			13,000		2.90%		13,000		2.90%
	2015			8,756		0.55%		-		-
	2016			18,827		1.28%		9,689		1.56%
	2017			33,000		2.89%		33,000		2.89%
	2018			17,758		2.15%		5,000		3.75%
	Thereafter			27,722		1.96%		10,000		1.50%
			$	119,063		2.14%	$	110,603		3.11%
	-1	Excludes the fair value adjustment of $600 and $922 at December 2013 and 2012, respectively, recorded in connection with the acquisition of CNB Financial.

Income_Taxes_Tables

Income Taxes (Tables)	15 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Provision for Federal and State Income Taxes	'
	The provision for federal and state income taxes is as follows:
		Years Ended December 31,
		2013		2012		2011
	Current tax (benefit) provision:
	Federal	$	-2,880	$	3,188	$	6,177
	State		43		1,793		1,700
			-2,837		4,981		7,877
	Deferred tax provision (benefit):
	Federal		7,169		-177		-3,293
	State		2,130		-1,009		-906
			9,299		-1,186		-4,199
	Provision for income taxes	$	6,462	$	3,795	$	3,678
Summary of Difference Between Statutory Federal Income Tax Rate and Effective Rate	'
	The following table summarizes the difference between the statutory federal income tax rate and the effective rate:
		Years Ended December 31,
		2013		2012		2011
	Statutory federal income tax rate		35.00%		35.00%		35.00%
	Increase (decrease) resulting from:
	State taxes, net of federal tax benefit		5.9		6.9		3.5
	Stock-based compensation		0.5		1.9		0.9
	Tax-exempt obligations		-3.5		-8.5		-4.1
	Tax credits		-8.1		-21.6		-8
	Bank owned life insurance		-3		-7.6		-3.5
	Non-deductible acquisition expenses		0.7		11.9		-
	ESOP termination expense		-		28.3		-
	Other, net		-0.4		4.8		0.9
	Effective tax rate		27.10%		51.10%		24.70%
Components of Net Deferred Tax Asset	'
	The components of the net deferred tax asset are as follows:
		December 31,
		2013		2012
	Deferred tax asset:
	Federal	$	16,477	$	22,632
	State		5,084		6,072
			21,561		28,704
	Deferred tax liability:
	Federal		-4,416		-6,989
	State		-2,184		-1,537
			-6,600		-8,526
	Net deferred tax asset:	$	14,961	$	20,178
Summary of Tax Effects of Each Type of Income and Expense Item	'
	The tax effects of each type of income and expense item that give rise to deferred taxes are as follows:
		At December 31,
		2013		2012
	Cash basis of accounting	$	232	$	-410
	Investments:
	Net unrealized loss (gain) on securities available for sale		213		-3,847
	Impairment losses		622		1,056
	Partnerships and other investments		-975		-388
	Retirement benefits		555		533
	Depreciation		219		148
	Purchase accounting adjustments		373		2,812
	Allowance for loan losses		5,896		4,938
	Employee benefit plans		3,582		3,726
	Market value adjustment on loans		3,183		10,446
	Net operating loss carryforward		1,162		1,162
	Other		-101		2
	Net deferred tax asset	$	14,961	$	20,178
Summary of Change in Net Deferred Tax Asset	'
	A summary of the change in the net deferred tax asset is as follows:
		At December 31,
		2013		2012
	Balance at beginning of year	$	20,178	$	14,006
	Expense (benefit)		-9,299		1,186
	Recorded due to acquisition of NEBS		-		4,256
	Tax effect of changes in accumulated other comprehensive income (loss)		4,082		730
	Balance at end of year	$	14,961	$	20,178

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	15 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Calculation of Basic and Diluted Earnings Per Common Share	'
	The calculation of basic earnings per common share (“EPS”) and diluted earnings per common share for the years ended December 31, 2013, 2012 and 2011 is presented below.
			Years Ended December 31,
			2013		2012		2011
	Net income		$	17,402	$	3,628	$	11,184
	Weighted average common shares applicable to basic EPS (1)			19,779,667		15,234,896		14,929,714
	Effect of dilutive potential common shares (2) (3)			293,552		186,881		268,988
	Weighted average common shares applicable to diluted EPS			20,073,219		15,421,777		15,198,702
	Earnings per share:
	Basic		$	0.88	$	0.24	$	0.75
	Diluted		$	0.87	$	0.24	$	0.74
	-1	Share-based compensation awards that qualify as participating securities (entitled to receive non-forfeitable dividends) are included in basic EPS.
	-2	For the years ended December 31, 2013, 2012 and 2011, options to purchase 131,764; 241,300 and 233,390 shares, respectively, were not included in the computation of diluted earnings per share because they were antidilutive.
	-3	Includes incremental shares related to dilutive stock options.

StockBased_Incentive_Plans_Tab

Stock-Based Incentive Plans (Tables)	15 Months Ended
	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Combined Summary of Activity in Incentive Plans	'
	A combined summary of activity in the Company’s incentive plans for the years ended December 31, 2013 and 2012 is presented in the following table:
		Shares		Stock Awards Outstanding				Stock Options Outstanding
		Available
		for Grant		Number of		Weighted-		Number of		Weighted-
				Shares		Average		Shares		Average
						Grant				Exercise
						Value				Price
	Balance at December 31, 2011		348,629		167,050	$	12.42		1,660,915	$	12.43
	Granted		-108,500		29,500		15.09		79,000		15.03
	Stock options exercised		-		-		-		-99,251		12.18
	Shares vested		-		-74,950		12.08		-		-
	Forfeited		35,100		-7,000		11.81		-28,100		12.3
	Cancelled		11,524		-1,000		11.66		-10,524		11.69
	Balance at December 31, 2012		286,753		113,600		13.38		1,602,040		12.59
	Granted		-7,500		-		-		7,500		15.04
	Stock options exercised		-		-		-		-532,949		12.72
	Shares vested		-		-74,850		12.35		-		-
	Cancelled		483		-		-		-483		14.87
	Balance at December 31, 2013		279,736		38,750	$	15.36		1,076,108	$	12.54
Assumptions to Compute Fair Value of Options Granted in Black-Scholes Option Pricing Model	'
	The following table presents the assumptions used to compute the fair value of options using the Black-Scholes option pricing model for stock options granted during 2013, 2012 and 2011.
		2013		2012		2011
	Weighted average fair value	$	3.27	$	3.37	$	4
	Expected term (short-cut method)		6.50 years		6.50 years		6.50 years
	Volatility		29.03%		29.67%		28.76%
	Expected dividend yield		2.66%		2.57%		2.25%
	Weighted average risk-free interest rate		1.30%		1.20%		2.14%
Summary of Stock Options Outstanding and Exercisable	'
	A summary of stock options outstanding and exercisable at December 31, 2013 is as follows:
		Stock Options
		Outstanding		Exercisable
	Total number of shares		1,076,108		947,558
	Weighted average exercise price	$	12.54	$	12.24
	Aggregate intrinsic value	$	6,837	$	6,303
	Weighted average remaining contractual term		4.4 years		3.9 years

Employee_Benefit_Plans_Tables

Employee Benefit Plans (Tables)	15 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Changes in Projected Benefit Obligation	'
	The following table summarizes the changes in the projected benefit obligation (“PBO”), the funded status of the PBO and the weighted average assumptions used to determine the benefit obligation for the SERP and Director Retirement Plan at December 31, 2013 and 2012. These plans had no assets at December 31, 2013 and 2012. Amounts recognized at December 31, 2013 and 2012 are reflected in accrued expenses and other liabilities on the consolidated balance sheets.
		At or For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Change in projected benefit obligation:
	Beginning of period	$	5,072	$	1,149	$	3,870	$	1,205
	Service cost		441		61		401		55
	Interest cost		220		60		189		44
	Actuarial (gain)/loss		-66		297		3		25
	Plan amendments		-		-		609		41
	Benefits paid		-55		-26		-		-221
	End of period	$	5,612	$	1,541	$	5,072	$	1,149
	Accrued benefit cost	$	5,612	$	1,541	$	5,072	$	1,149
Amounts Recognized in Accumulated Other Comprehensive Income	'
		At or For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Amounts recognized in accumulated other comprehensive income consist of:
	Prior service cost	$	-975	$	-137	$	-1,174	$	-180
	Net gain/(losses)		182		-428		116		-194
	Total	$	-793	$	-565	$	-1,058	$	-374
Weighted-Average Assumptions Used to Determine Benefit Obligations	'
	Weighted-average assumptions used to determine benefit obligations:
	Discount rate		5.00%		5.00%		4.00%		4.00%
	Rate of compensation increase		5.00%		2.00%		5.00%		2.00%
Components of Net Periodic Benefit Cost	'
	Components of the net periodic benefit cost are as follows:
		For the Years Ended December 31,
		2013				2012
		SERP		Director		SERP		Director
				Retirement Plan				Retirement Plan
	Periodic benefit cost:
	Service cost	$	441	$	61	$	401	$	55
	Interest cost		220		60		189		44
	Total pension cost		661		121		590		99
	Prior service cost amortization		200		43		200		43
	Net loss amortization		-		62		-		48
	Net periodic benefit cost	$	861	$	226	$	790	$	190
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost	'
	Weighted-average assumptions used to determine net periodic benefit cost:
	Discount rate		4.00%		4.00%		4.25%		4.25%
	Rate of compensation increase		5.00%		2.00%		5.00%		2.00%
Benefit Payments Expected Future Costs	'
	At December 31, 2013, the benefit payments expected to be paid in each of the next five years and the aggregate for the five fiscal years thereafter are as follows:
		SERP		Director
				Retirement Plan
	Years ending December 31,
	2014	$	3,359	$	512
	2015		56		26
	2016		1,219		366
	2017		55		26
	2018		56		391
	2019 through 2023		278		439
	Total for the next ten years	$	5,023	$	1,760
Shares Held by ESOP	'
	Shares held by the ESOP Plans include the following:
		December 31,
		2013		2012		2011
	Allocated		733,366		376,483		308,915
	Committed to be released		-		357,053		71,709
	Unallocated		-		-		1,021,504
			733,366		733,536		1,402,128

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	15 Months Ended
	Dec. 31, 2013
Commitments And Contingencies Disclosure [Abstract]	'
Financial Instruments with Off-Balance Sheet Risk	'
	Financial instruments with off-balance sheet risk at December 31, 2013 and 2012 are as follows:
		2013		2012
	Unused lines of credit	$	338,698	$	308,683
	Amounts due mortgagors		102,126		36,365
	Standby letters of credit		5,443		3,573
	Commitments to originate loans		33,899		63,974

Fair_Values_of_Financial_Instr1

Fair Values of Financial Instruments (Tables)	15 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Assets Measured at Fair Value on Recurring Basis	'
	Assets measured at fair value on a recurring basis, are summarized below:
		Level 1		Level 2		Level 3		Total
								Fair Value
	At December 31, 2013
	Securities available for sale:
	Government-sponsored enterprises	$	-	$	1,851	$	-	$	1,851
	Government-sponsored and government- guaranteed mortgage-backed securities		-		236,454		-		236,454
	Private label mortgage-backed securities		-		-		-		-
	Municipal bonds		-		24,718		-		24,718
	Corporate bonds		-		-		1,606		1,606
	Total	$	-	$	263,023	$	1,606	$	264,629
	At December 31, 2012
	Securities available for sale:
	Government-sponsored enterprises	$	-	$	3,233	$	-	$	3,233
	Government-sponsored and government- guaranteed mortgage-backed securities		-		257,762		-		257,762
	Private label mortgage-backed securities		-		2,566		-		2,566
	Municipal bonds		-		28,827		-		28,827
	Corporate bonds		-		-		1,934		1,934
	Total	$	-	$	292,388	$	1,934	$	294,322
Changes in Level 3 Recurring Fair Value of Financial Instruments	'
	The table below presents the changes in Level 3 assets measured at fair value on a recurring basis for the years ended December 31, 2013 and 2012.
		2013		2012
	Balance at beginning of year	$	1,934	$	1,566
	Total realized/unrealized gains (losses) included in net income		277		-165
	Change in unrealized gain (loss)		-161		533
	Sales		-444		-
	Balance at end of year	$	1,606	$	1,934
Fair Value Hierarchy Used to Determine the Adjustment and Carrying Value of Related Assets	'
	The following table summarizes the fair value hierarchy used to determine the adjustment and the carrying value of the related assets as of and for the years ended December 31, 2013 and 2012.
	December 31, 2013	Level 1		Level 2		Level 3		Total
								Gains/(Losses)
	Assets:
	Loans	$	-	$	-	$	1,235	$	-1,061
	Other real estate owned		-		-		399		-177
	Total assets	$	-	$	-	$	1,634	$	-1,238
	December 31, 2012
	Assets:
	Loans	$	-	$	-	$	546	$	-748
	Other real estate owned		-		-		825		-429
	Other assets		-		-		595		-37
	Total assets	$	-	$	-	$	1,966	$	-1,214
Fair Values of Financial Instruments	'
	Accordingly, the aggregate fair value amounts presented herein do not represent the underlying fair value of the Company.
		At December 31, 2013
		Carrying		Level 1		Level 2		Level 3		Estimated
		Value								Fair Value
	Financial Assets:
	Cash and cash equivalents	$	47,241	$	47,241	$	-	$	-	$	47,241
	Securities available for sale		264,629		-		263,023		1,606		264,629
	Securities held to maturity		111,185		-		111,715		-		111,715
	Stock in Federal Home Loan Bank of Boston		17,334		-		-		17,334		17,334
	Net loans and loans held for sale		1,871,066		-		-		1,865,807		1,865,807
	Financial Liabilities:
	Deposits (with no stated maturity)		1,212,472		-		-		1,212,472		1,212,472
	Time deposits		734,012		-		-		740,723		740,723
	Federal Home Loan Bank of Boston advances		139,663		-		-		140,778		140,778
	Repurchase agreements		61,555		-		-		61,788		61,788
	Subordinated debentures		5,959		-		5,959		-		5,959
		At December 31, 2012
		Carrying		Level 1		Level 2		Level 3		Estimated
		Value								Fair Value
	Financial Assets:
	Cash and cash equivalents	$	30,679	$	30,679	$	-	$	-	$	30,679
	Securities available for sale		294,322		-		292,388		1,934		294,322
	Securities held to maturity		82,986		-		85,674		-		85,674
	Stock in Federal Home Loan Bank of Boston		18,554		-		-		18,554		18,554
	Net loans and loans held for sale		1,808,033		-		-		1,846,519		1,846,519
	Financial Liabilities:
	Deposits (with no stated maturity)		1,140,766		-		-		1,140,766		1,140,766
	Time deposits		707,409		-		-		711,845		711,845
	Federal Home Loan Bank of Boston advances		141,525		-		-		145,543		145,543
	Repurchase agreements		69,229		-		-		70,082		70,082
	Subordinated debentures		9,630		-		9,630		-		9,630

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	15 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Schedule of Capital Amounts and Ratios	'
	The Bank’s actual capital amounts and ratios, as well as minimum amounts and ratios required for capital adequacy are presented below:
		Actual				For Capital				To Be Well Capitalized
						Adequacy Purposes				Under Regulatory
										Framework
		Amount		Ratio		Amount		Ratio		Amount		Ratio
	As of December 31, 2013:
	Total Risk-based Capital
	(to Risk Weighted Assets)	$	264,058		13.10%	$	161,376		8.00%	$	201,720		10.00%
	Tier I Risk-based Capital
	(to Risk Weighted Assets)		250,645		12.40%		80,688		4.00%		121,032		6.00%
	Tier I (Core) Capital
	(to Adjusted Total Assets)		250,645		10.30%		97,633		4.00%		122,042		5.00%
	Tangible Equity
	(to Tangible Assets)		250,645		10.30%		36,612		1.50%		N/A
	As of December 31, 2012:
	Total Risk-based Capital
	(to Risk Weighted Assets)	$	263,712		13.60%	$	155,028		8.00%	$	193,786		10.00%
	Tier I Risk-based Capital
	(to Risk Weighted Assets)		251,623		13.00%		77,514		4.00%		116,271		6.00%
	Tier I (Core) Capital
	(to Adjusted Total Assets)		251,623		10.70%		94,117		4.00%		117,646		5.00%
	Tangible Equity
	(to Tangible Assets)		251,623		10.70%		35,294		1.50%		N/A
Reconciliation of Consolidated Equity to Capital Amounts	'
	The following table provides a reconciliation of the Company’s total consolidated equity to the capital amounts for the Bank reflected in the preceding table:
		December 31
		2013		2012
	Total consolidated equity	$	302,779	$	307,189
	Adjustments:
	Additional equity capital of United Financial Bancorp, Inc.		-8,954		-6,302
	Accumulated other comprehensive income		1,091		-5,401
	Disallowed goodwill and intangible assets		-44,271		-43,863
	Tangible, Tier I and Core Capital		250,645		251,623
	Allowance for loan losses		13,413		12,089
	Total risk-based capital	$	264,058	$	263,712

Condensed_Financial_Statements1

Condensed Financial Statements of United Financial Bancorp, Inc. (Tables)	15 Months Ended
	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Schedule of Condensed Balance Sheets	'
	The following are the condensed financial statements for United Financial Bancorp, Inc. (parent company only).
	BALANCE SHEETS
		December 31,
		2013		2012
	ASSETS
	Cash and cash equivalents	$	15,689	$	16,642
	Investment in Bank		293,825		300,887
	Other assets		5,720		4,385
	TOTAL ASSETS	$	315,234	$	321,914
	LIABILITIES AND STOCKHOLDERS’ EQUITY
	Subordinated debentures	$	5,959	$	9,630
	Other liabilities		6,496		5,095
	Stockholders’ equity		302,779		307,189
	TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	315,234	$	321,914
Schedule of Condensed Statements of Income	'
	STATEMENTS OF INCOME
		Years Ended December 31,
		2013		2012		2011
	Income:
	Investment interest	$	48	$	82	$	111
	ESOP loan interest		-		360		379
	Gain on sale of other assets		204		-		-
	Impairment charges on securities		-		-37		-99
	Other income		-		22		-
	Total income		252		427		391
	Expense:
	Subordinated debentures interest		276		276		255
	Professional services		1,369		1,293		1,295
	Merger related expenses		612		1,881		-
	Other expenses		169		24		102
	Total expense		2,426		3,474		1,652
	Loss before income tax benefit		-2,174		-3,047		-1,261
	Income tax benefit		-308		-498		-510
	Loss before equity in undistributed earnings of the Bank		-1,866		-2,549		-751
	Equity in undistributed earnings of the Bank		19,268		6,177		11,935
	NET INCOME	$	17,402	$	3,628	$	11,184
Schedule of Condensed Statements of Cash Flows	'
	STATEMENTS OF CASH FLOWS
		Years Ended December 31,
		2013		2012		2011
	Cash flows from operating activities:
	Net income	$	17,402	$	3,628	$	11,184
	Adjustments to reconcile net income to net cash
	(used in) provided by operating activities:
	Equity in undistributed earnings of the bank		-19,268		-6,177		-11,935
	Impairment charges on securities		-		37		99
	Decrease in accrued interest receivable		1		-		1
	(Increase) decrease in other assets		-1,302		1,786		-1,820
	Increase (decrease) in intercompany payables and other liabilities		1,401		4,886		-57
	Net cash (used in) provided by operating activities		-1,766		4,160		-2,528
	Cash flows from investing activities:
	Net cash from acquisition of NEBS		-		118		-
	Capital contributions to venture capital fund		-34		-131		-100
	Principal payments on ESOP loans		-		624		605
	Net cash (used in) provided by investing activities		-34		611		505
	Cash flows from financing activities:
	Return of capital from United Bank		17,212		17,844		84
	Tax benefit from MRP vesting		73		29		91
	Tax withheld on options exercised		-685		-102		-55
	Treasury stock purchases		-7,550		-5,660		-6,780
	Reissuance of treasury shares in connection with restricted stock warrants		-		-		426
	Reissuance of treasury shares in connection with stock options exercised		293		97		89
	Cash paid for in the money stock options exercised		-		-		-2
	Cash dividends paid		-8,496		-5,521		-5,067
	Net cash provided by (used in) financing activities		847		6,687		-11,214
	(Decrease) increase in cash and cash equivalents		-953		11,458		-13,237
	Cash and cash equivalents at beginning of period		16,642		5,184		18,421
	Cash and cash equivalents at end of period	$	15,689	$	16,642	$	5,184
	Supplemental Disclosure of Cash Flow Information:
	Cash paid during the period:
	Income taxes – net	$	5,500	$	5,775	$	4,850
	Non-cash item:
	Transfer of treasury shares to pay-off ESOP loan	$	-	$	10,447	$	-

Quarterly_Results_of_Operation1

Quarterly Results of Operations (Unaudited) (Tables)	15 Months Ended
	Dec. 31, 2013
Text Block [Abstract]	'
Summary of Quarterly Results of Operations	'
	The following table summarizes the operating results on a quarterly basis for the years ended December 31, 2013 and 2012.
			Three Months Ended
			March 31			June 30			September 30			December 31
	2013:00:00
	Interest income		$	24,387		$	23,549		$	23,226		$	23,131
	Interest expense			3,894			3,850			3,880			3,779
	Net interest income			20,493			19,699			19,346			19,352
	Provision for loan losses			950			892			1,125			1,125
	Non-interest income			2,798			3,015			2,976			3,239
	Non-interest expense			15,850	(1)		16,269	(1)		14,836			16,007	(1)
	Income before income taxes			6,491			5,553			6,361			5,459
	Income tax expense			1,790			1,504			1,714			1,454
	Net income		$	4,701		$	4,049		$	4,647		$	4,005
	Basic earnings per share		$	0.23		$	0.21		$	0.24		$	0.2
	Diluted earnings per share		$	0.23		$	0.2		$	0.23		$	0.2
	Dividends paid per share		$	0.1		$	0.11		$	0.11		$	0.11
	2012:00:00
	Interest income		$	16,971		$	16,999		$	17,070		$	20,131
	Interest expense			3,871			3,705			3,520			3,896
	Net interest income			13,100			13,294			13,550			16,235
	Provision for loan losses			650			750			1,050			689
	Non-interest income			2,573			2,570			2,511			2,969
	Non-interest expense			11,275			11,468	(1)		11,192	(1)		22,305	(1)
	Income (loss) before income taxes			3,748			3,646			3,819			-3,790
	Income tax expense			899			1,064			890			942
	Net income (loss)		$	2,849		$	2,582		$	2,929		$	-4,732
	Basic earnings per share		$	0.19		$	0.18		$	0.2		$	-0.28
	Diluted earnings per share		$	0.19		$	0.17		$	0.2		$	-0.28
	Dividends paid per share		$	0.09		$	0.09		$	0.1		$	0.1
	-1	Includes merger-related expenses of $158, $123 and $598 for the quarters ended March 31, June 30 and December 31, 2013 and $592, $366 and $3,994 for the quarters ended June 30, September 30 and December 31, 2012, respectively, branch closing costs of $510 and $477 for the quarters ended March and June 30, 2013, respectively, an ESOP plan termination expense of $4,482 and FHLBB prepayment penalties of $207 for the quarter ended December 31, 2012.

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
	D
Accounting Policies [Abstract]	'	'
Maturity period of monetary liquid assets considered to be cash and cash equivalents maximum	'90 days	'
Quoted market value of investment	$0	'
Other-than-temporary impairment charge	0	'
Accrual of interest on loans discontinued period	90	'
Accrual of interest on residential mortgage loans discontinued period	90	'
Commercial and industrial loans	1,218,501,000	1,173,662,000
Commercial real estate loans	500,000	'
Maximum amount of commercial real estate loans	250,000	'
Maximum loan-to-value ratio	95.00%	'
Reserve for unfunded commitments included in other liabilities	142,000	213,000
Percentage of likelihood to assess qualitative factors	50.00%	'
Percentage of employee matching contribution, defined contribution plan	5.00%	'
Valuation allowance for deferred tax assets	$0	$0
Minimum percentage of the tax benefits recognized in the financial statements measured	50.00%	'

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Components of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]	'	'
Unrealized gain (loss) on securities available for sale, Gross Amount	($501)	$10,147
Pension liability, Gross Amount	-1,358	-1,432
Total accumulated other comprehensive income (loss), Gross Amount	-1,859	8,715
Unrealized gain (loss) on securities available for sale, Tax Effect	213	-3,847
Pension liability, Tax Effect	555	533
Total accumulated other comprehensive income (loss), Tax Effect	768	-3,314
Unrealized gain (loss) on securities available for sale, Net of Tax	-288	6,300
Pension liability, Net of Tax	-803	-899
Total accumulated other comprehensive income (loss), Net of Tax	($1,091)	$5,401

Mergers_Additional_Information

Mergers - Additional Information (Detail) (USD $)	12 Months Ended		0 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Nov. 16, 2012	Dec. 31, 2013	Dec. 31, 2012	Nov. 16, 2012	Dec. 31, 2013	Nov. 15, 2013
			New England Bank [Member]	New England Bank [Member]	New England Bank [Member]	New England Bank [Member]	Rockville Financial, Inc. [Member]	Rockville Financial, Inc. [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'
Approximately valued transaction cost	'	'	'	'	'	'	'	$369,000,000
Consideration of common stock per share value	'	'	$14.24	'	'	$14.24	'	$13.62
Shares received for each share of common stock	1.3472	'	'	'	'	'	'	'
Ownership percentage	51.00%	'	'	'	'	'	49.00%	'
Consideration of common stock paid for acquisition	'	'	5,559,495	'	'	5,559,495	'	'
Consideration of cash paid for acquisition	'	'	2,337,000	'	'	'	'	'
Net Assets Acquired	'	'	81,504,000	'	'	81,504,000	'	'
Consideration paid to purchase NEBS shares	'	'	2,318,000	'	'	2,318,000	'	'
Merger and acquisition expenses	879,000	4,952,000	'	'	'	'	'	'
Fair value of acquired Company loans	'	'	'	'	'	553,983,000	'	'
Deterioration of credit quality	1,742,000	7,024,000	9,911,000	'	'	9,911,000	'	'
Carrying amount of loans with evidence of credit deterioration	14,061,000	17,440,000	'	4,457,000	7,024,000	'	'	'
Non accretable credit discount	'	'	'	$1,243,000	$2,870,000	'	'	'

Mergers_Summary_of_Estimated_F

Mergers - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) (New England Bank [Member], USD $)	Nov. 16, 2012
In Thousands, unless otherwise specified
New England Bank [Member]	'
Assets:	'
Cash	$68,926
Investments	53,430
Loans	553,983
Premises and equipment	5,985
Goodwill	31,660
Core deposit intangible	3,730
Other real estate owned	1,471
Other assets	26,629
Total Assets Acquired	745,814
Liabilities:	'
Deposits	596,994
Borrowings	63,533
Other liabilities	3,783
Total Liabilities Assumed	664,310
Net Assets Acquired	$81,504

Restrictions_on_Cash_and_Amoun1

Restrictions on Cash and Amounts Due from Banks - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Cash And Due From Banks [Abstract]	'	'
Reserve balances	$4,012	$6,990

Investment_Securities_Amortize

Investment Securities - Amortized Cost and Fair Values of Securities Classified as Available for Sale and Held to Maturity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	$265,130	$284,175
Securities Available for Sale, Unrealized Gain	5,586	11,131
Securities Available for Sale, Unrealized Losses	-6,087	-984
Securities Available for Sale, Fair Value	264,629	294,322
Securities Held to Maturity, Amortized Cost	111,185	82,986
Securities Held to Maturity, Unrealized Gain	1,297	2,688
Securities Held to Maturity, Unrealized Losses	-767	'
Securities Held to Maturity, Fair Value	111,715	85,674
Government-Sponsored Enterprises [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	2,099	3,234
Securities Available for Sale, Unrealized Gain	'	2
Securities Available for Sale, Unrealized Losses	-248	-3
Securities Available for Sale, Fair Value	1,851	3,233
Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	236,004	248,370
Securities Available for Sale, Unrealized Gain	4,836	9,836
Securities Available for Sale, Unrealized Losses	-4,386	-444
Securities Available for Sale, Fair Value	236,454	257,762
Securities Held to Maturity, Amortized Cost	78,686	57,986
Securities Held to Maturity, Unrealized Gain	1,130	2,214
Securities Held to Maturity, Unrealized Losses	-767	'
Securities Held to Maturity, Fair Value	79,049	60,200
Private Label Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	'	2,568
Securities Available for Sale, Unrealized Gain	'	54
Securities Available for Sale, Unrealized Losses	'	-56
Securities Available for Sale, Fair Value	'	2,566
Securities Held to Maturity, Amortized Cost	50	79
Securities Held to Maturity, Unrealized Gain	1	2
Securities Held to Maturity, Unrealized Losses	'	'
Securities Held to Maturity, Fair Value	51	81
Municipal Bonds [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	25,902	28,713
Securities Available for Sale, Unrealized Gain	269	595
Securities Available for Sale, Unrealized Losses	-1,453	-481
Securities Available for Sale, Fair Value	24,718	28,827
Securities Held to Maturity, Amortized Cost	5,913	5,924
Securities Held to Maturity, Unrealized Gain	166	472
Securities Held to Maturity, Unrealized Losses	'	'
Securities Held to Maturity, Fair Value	6,079	6,396
Corporate Bonds [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Amortized Cost	1,125	1,290
Securities Available for Sale, Unrealized Gain	481	644
Securities Available for Sale, Unrealized Losses	'	'
Securities Available for Sale, Fair Value	1,606	1,934
Industrial Revenue Bonds [Member]	'	'
Investment [Line Items]	'	'
Securities Held to Maturity, Amortized Cost	26,361	18,847
Securities Held to Maturity, Unrealized Gain	'	'
Securities Held to Maturity, Unrealized Losses	'	'
Securities Held to Maturity, Fair Value	26,361	18,847
State of Israel Bonds [Member]	'	'
Investment [Line Items]	'	'
Securities Held to Maturity, Amortized Cost	175	150
Securities Held to Maturity, Unrealized Gain	'	'
Securities Held to Maturity, Unrealized Losses	'	'
Securities Held to Maturity, Fair Value	$175	$150

Investment_Securities_Addition

Investment Securities - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Investmentsecurities	Corporate Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]	'	'
Pledged securities with an amortized cost	$124,699	'
Pledged securities with fair value	126,347	'
Fair value of Company's securities declined	0	'
Pre-tax, non-cash charge	'	$165

Investment_Securities_Gross_Co

Investment Securities - Gross Continuous Unrealized Losses and Fair Values (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Securities	Securities
Investment [Line Items]	'	'
Securities Available for Sale, Less than 12 months, Fair Value	$111,126	$61,499
Securities Available for Sale, 12 months or longer, Fair Value	43,029	'
Securities Available for Sale, Fair Value, Total	154,155	61,499
Securities Held to Maturity, Less than 12 months, Fair Value	36,488	'
Securities Held to Maturity, 12 months or longer, Fair Value	'	'
Securities Held to Maturity, Fair Value, Total	36,488	'
Securities Available for Sale, Less than 12 months, Unrealized Losses	-3,930	-984
Securities Available for Sale, 12 months or longer, Unrealized Losses	-2,157	'
Securities Available for Sale, Number of Securities	184	133
Securities Available for Sale, Unrealized Losses, Total	-6,087	-984
Securities Held to Maturity, Less than 12 months, Unrealized Losses	-767	'
Securities Held to Maturity, 12 months or longer, Unrealized Losses	'	'
Securities Held to Maturity, Number of Securities	10	'
Securities Held to Maturity, Unrealized Losses, Total	-767	'
Government-Sponsored Enterprises [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Less than 12 months, Fair Value	1,851	1,998
Securities Available for Sale, 12 months or longer, Fair Value	'	'
Securities Available for Sale, Fair Value, Total	1,851	1,998
Securities Available for Sale, Less than 12 months, Unrealized Losses	-248	-3
Securities Available for Sale, 12 months or longer, Unrealized Losses	'	'
Securities Available for Sale, Number of Securities	5	5
Securities Available for Sale, Unrealized Losses, Total	-248	-3
Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Less than 12 months, Fair Value	101,067	41,537
Securities Available for Sale, 12 months or longer, Fair Value	32,066	'
Securities Available for Sale, Fair Value, Total	133,133	41,537
Securities Held to Maturity, Less than 12 months, Fair Value	36,488	'
Securities Held to Maturity, 12 months or longer, Fair Value	'	'
Securities Held to Maturity, Fair Value, Total	36,488	'
Securities Available for Sale, Less than 12 months, Unrealized Losses	-3,206	-444
Securities Available for Sale, 12 months or longer, Unrealized Losses	-1,180	'
Securities Available for Sale, Number of Securities	132	81
Securities Available for Sale, Unrealized Losses, Total	-4,386	-444
Securities Held to Maturity, Less than 12 months, Unrealized Losses	-767	'
Securities Held to Maturity, 12 months or longer, Unrealized Losses	'	'
Securities Held to Maturity, Number of Securities	10	'
Securities Held to Maturity, Unrealized Losses, Total	-767	'
Private Label Mortgage-Backed Securities [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Less than 12 months, Fair Value	'	1,671
Securities Available for Sale, 12 months or longer, Fair Value	'	'
Securities Available for Sale, Fair Value, Total	'	1,671
Securities Available for Sale, Less than 12 months, Unrealized Losses	'	-56
Securities Available for Sale, 12 months or longer, Unrealized Losses	'	'
Securities Available for Sale, Number of Securities	'	9
Securities Available for Sale, Unrealized Losses, Total	'	-56
Securities Held to Maturity, Unrealized Losses, Total	'	'
Municipal Bonds [Member]	'	'
Investment [Line Items]	'	'
Securities Available for Sale, Less than 12 months, Fair Value	8,208	16,293
Securities Available for Sale, 12 months or longer, Fair Value	10,963	'
Securities Available for Sale, Fair Value, Total	19,171	16,293
Securities Available for Sale, Less than 12 months, Unrealized Losses	-476	-481
Securities Available for Sale, 12 months or longer, Unrealized Losses	-977	'
Securities Available for Sale, Number of Securities	47	38
Securities Available for Sale, Unrealized Losses, Total	-1,453	-481
Securities Held to Maturity, Unrealized Losses, Total	'	'

Investment_Securities_Schedule

Investment Securities - Scheduled of Realized Gains and Losses and Proceeds from Sales of Securities (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments Debt And Equity Securities [Abstract]	'	'	'
Proceeds from sales/calls	$6,262	$7,846	$2,500
Gross gains	309	267	1
Gross losses	($82)	($13)	'

Investment_Securities_Schedule1

Investment Securities - Scheduled Maturities of Debt Securities Held to Maturity and Available for Sale (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Securities Available for Sale, Amortized Cost, Due in one year or less	'	'
Securities Available for Sale, Amortized Cost, Due from one year to five years	2,096	'
Securities Available for Sale, Amortized Cost, Due from five years to ten years	15,870	'
Securities Available for Sale, Amortized Cost, Due after ten years	11,160	'
Securities Available for Sale, Amortized Cost, Total due maturity	29,126	'
Securities Available for Sale, Amortized Cost, Mortgage-backed securities	236,004	'
Securities Available for Sale, Amortized Cost	265,130	284,175
Securities Available for Sale, Fair Value, Due in one year or less	'	'
Securities Available for Sale, Fair Value, Due from one year to five years	2,155	'
Securities Available for Sale, Fair Value, Due from five years to ten years	15,237	'
Securities Available for Sale, Fair Value, Due after ten years	10,783	'
Securities Available for Sale, Fair Value, Total due maturity	28,175	'
Securities Available for Sale, Fair Value, Mortgage-backed securities	236,454	'
Securities Available for Sale, Fair Value	264,629	294,322
Securities Held to Maturity, Amortized Cost, Due in one year or less	125	'
Securities Held to Maturity, Amortized Cost, Due from one year to five years	810	'
Securities Held to Maturity, Amortized Cost, Due from five years to ten years	1,534	'
Securities Held to Maturity, Amortized Cost, Due after ten years	29,980	'
Securities Held to Maturity, Amortized Cost, Total due maturity	32,449	'
Securities Held to Maturity, Amortized Cost, Mortgage-backed securities	78,736	'
Securities Held to Maturity, Amortized Cost	111,185	82,986
Securities Held to Maturity, Fair Value, Due in one year or less	125	'
Securities Held to Maturity, Fair Value, Due from one year to five years	843	'
Securities Held to Maturity, Fair Value, Due from five years to ten years	1,582	'
Securities Held to Maturity, Fair Value, Due after ten years	30,065	'
Securities Held to Maturity, Fair Value, Total due maturity	32,615	'
Securities Held-to-maturity, Fair Value, Mortgage-backed securities	79,100	'
Securities Held to Maturity, Fair Value	$111,715	$85,674

Loans_Net_Summary_of_Component

Loans, Net - Summary of Components of Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Commercial Loan	$1,218,501	$1,173,662	'	'
Consumer Loan	663,338	642,414	'	'
Total Loans	1,881,839	1,816,076	'	'
Net deferred loan costs and fees	2,640	3,414	'	'
Allowance for loan losses	-13,413	-12,089	-11,132	-9,987
Loans, net	1,871,066	1,807,401	'	'
Commercial and Industrial [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Commercial Loan	293,094	306,192	'	'
Commercial Real Estate [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Commercial Loan	862,596	814,692	'	'
Construction [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Commercial Loan	62,811	52,778	'	'
Residential Real Estate [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Consumer Loan	466,604	441,874	'	'
Home equity [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Consumer Loan	179,502	179,039	'	'
Consumer [Member]	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'
Consumer Loan	$17,232	$21,501	'	'

Loans_Net_Additional_Informati

Loans, Net - Additional Information (Detail) (USD $)	0 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]	'	'	'	'	'
Servicing loans for participants	$81,036	$57,722	$81,036	$57,722	'
Transferred portion of loan as secured debt	'	'	2,589	2,444	'
Proceeds from sales of residential mortgage loans	'	'	8,343	18,193	11,488
Loans serviced by the Company for others	87,372	98,155	87,372	98,155	'
Impaired and non-accrual loans	0	'	0	'	'
TDRs subsequently defaulted	0	0	'	'	'
TDR loans	$41	'	$41	'	'

Loans_Net_Summary_of_Lending_A

Loans, Net - Summary of Lending Activity with Directors and Executive Officers (Detail) (Directors and executive officers [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Directors and executive officers [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Beginning balance	$3,305	$2,230
New loans	361	1,670
Repayments	-487	-595
Ending balance	$3,179	$3,305

Loans_Net_Summary_of_Activity_

Loans, Net - Summary of Activity Pertaining to Allowance for Loan Losses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	$12,089	$11,132	$9,987
Charge-offs	-2,978	-2,364	-2,392
Recoveries	210	182	295
Provision (credit)	4,092	3,139	3,242
Ending balance	13,413	12,089	11,132
Commercial and Industrial [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	2,680	3,446	2,801
Charge-offs	-839	-637	-1,556
Recoveries	25	125	235
Provision (credit)	1,189	-254	1,966
Ending balance	3,055	2,680	3,446
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	5,497	5,572	5,000
Charge-offs	-1,349	-870	-589
Recoveries	90	45	52
Provision (credit)	2,070	750	1,109
Ending balance	6,308	5,497	5,572
Construction [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	710	860	668
Charge-offs	'	-127	-78
Recoveries	'	1	3
Provision (credit)	385	-24	267
Ending balance	1,095	710	860
Business Banking Commercial and Industrial [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	788	'	'
Charge-offs	-123	-128	'
Recoveries	'	2	'
Provision (credit)	-11	914	'
Ending balance	654	788	'
Business Banking Commercial Real Estate [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	706	'	'
Charge-offs	-122	-52	'
Recoveries	'	'	'
Provision (credit)	-51	758	'
Ending balance	533	706	'
Residential Mortgage [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	602	666	740
Charge-offs	-389	-246	-139
Recoveries	60	'	'
Provision (credit)	532	182	65
Ending balance	805	602	666
Home Equity [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	383	474	623
Charge-offs	-89	-225	-24
Recoveries	6	'	'
Provision (credit)	74	134	-125
Ending balance	374	383	474
Consumer [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	83	114	155
Charge-offs	-67	-79	-6
Recoveries	29	9	5
Provision (credit)	18	39	-40
Ending balance	63	83	114
Unallocated [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning balance	640	'	'
Charge-offs	'	'	'
Recoveries	'	'	'
Provision (credit)	-114	640	'
Ending balance	$526	$640	'

Loans_Net_Information_Pertaini

Loans, Net - Information Pertaining to Allowance for Loan Losses (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	$127	$32
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	13,286	12,057
Total Loans	1,881,839	1,816,076
Loans individually evaluated for impairment and deemed to be impaired	12,319	10,416
Loans not deemed to be impaired and collectively evaluated for impairment	1,867,778	1,798,636
Loans acquired with deteriorated credit quality and deemed to be impaired	1,742	7,024
Commercial and Industrial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	28	32
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	3,027	2,648
Total Loans	261,692	272,789
Loans individually evaluated for impairment and deemed to be impaired	4,107	5,943
Loans not deemed to be impaired and collectively evaluated for impairment	257,353	266,091
Loans acquired with deteriorated credit quality and deemed to be impaired	232	755
Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	6,308	5,497
Total Loans	787,103	732,272
Loans individually evaluated for impairment and deemed to be impaired	8,212	3,882
Loans not deemed to be impaired and collectively evaluated for impairment	777,660	722,470
Loans acquired with deteriorated credit quality and deemed to be impaired	1,231	5,920
Construction [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	99	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	996	710
Total Loans	62,811	52,778
Loans individually evaluated for impairment and deemed to be impaired	'	591
Loans not deemed to be impaired and collectively evaluated for impairment	62,532	51,838
Loans acquired with deteriorated credit quality and deemed to be impaired	279	349
Business Banking Commercial and Industrial [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	654	788
Total Loans	31,402	33,403
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	31,402	33,403
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'
Business Banking Commercial Real Estate [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	533	706
Total Loans	75,493	82,420
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	75,493	82,420
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'
Residential Mortgage [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	805	602
Total Loans	466,604	441,874
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	466,604	441,874
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'
Home Equity [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	374	383
Total Loans	179,502	179,039
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	179,502	179,039
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'
Consumer [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	63	83
Total Loans	17,232	21,501
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	17,232	21,501
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'
Unallocated [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Amount of allowance for loan losses for loans individually evaluated for impairment and deemed to be impaired	'	'
Amount of allowance for loan losses for loans not deemed to be impaired and collectively evaluated for impairment	526	640
Total Loans	'	'
Loans individually evaluated for impairment and deemed to be impaired	'	'
Loans not deemed to be impaired and collectively evaluated for impairment	'	'
Loans acquired with deteriorated credit quality and deemed to be impaired	'	'

Loans_Net_Summary_of_Past_Due_

Loans, Net - Summary of Past Due Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	$18,720	$26,286
60-89 Days Past Due	6,603	4,937
90 Days and Over Past Due	12,020	12,665
Total Past Due	37,343	43,888
Current	1,844,496	1,772,188
Total Financing Receivables	1,881,839	1,816,076
Recorded Investments > 90 Days and Accruing	'	'
Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	2,696	3,974
60-89 Days Past Due	753	1,155
90 Days and Over Past Due	2,431	4,442
Total Past Due	5,880	9,571
Current	287,214	296,621
Total Financing Receivables	293,094	306,192
Recorded Investments > 90 Days and Accruing	'	'
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	6,169	6,326
60-89 Days Past Due	2,841	1,136
90 Days and Over Past Due	4,909	5,351
Total Past Due	13,919	12,813
Current	848,677	801,879
Total Financing Receivables	862,596	814,692
Recorded Investments > 90 Days and Accruing	'	'
Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	160	2,853
60-89 Days Past Due	116	'
90 Days and Over Past Due	279	'
Total Past Due	555	2,853
Current	62,256	49,925
Total Financing Receivables	62,811	52,778
Recorded Investments > 90 Days and Accruing	'	'
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	8,292	11,760
60-89 Days Past Due	2,525	2,450
90 Days and Over Past Due	3,180	2,615
Total Past Due	13,997	16,825
Current	452,607	425,049
Total Financing Receivables	466,604	441,874
Recorded Investments > 90 Days and Accruing	'	'
Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	1,074	1,044
60-89 Days Past Due	239	161
90 Days and Over Past Due	1,157	137
Total Past Due	2,470	1,342
Current	177,032	177,697
Total Financing Receivables	179,502	179,039
Recorded Investments > 90 Days and Accruing	'	'
Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-59 Days Past Due	329	329
60-89 Days Past Due	129	35
90 Days and Over Past Due	64	120
Total Past Due	522	484
Current	16,710	21,017
Total Financing Receivables	17,232	21,501
Recorded Investments > 90 Days and Accruing	'	'

Loans_Net_Summary_of_Impaired_

Loans, Net - Summary of Impaired Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	$14,061	$17,440
Recorded Investment	1,169	32
Total Unpaid Principal Balance	15,482	18,705
Unpaid Principal Balance	1,169	32
Related Allowance	127	32
Recorded Investment	12,892	17,408
Unpaid Principal Balance	14,313	18,673
Commercial and Industrial [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	890	32
Unpaid Principal Balance	890	32
Related Allowance	28	32
Recorded Investment	3,449	6,666
Unpaid Principal Balance	3,471	6,997
Commercial Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	'	'
Unpaid Principal Balance	'	'
Related Allowance	'	'
Recorded Investment	9,443	9,802
Unpaid Principal Balance	10,842	10,736
Construction [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	279	'
Unpaid Principal Balance	279	'
Related Allowance	99	'
Recorded Investment	'	940
Unpaid Principal Balance	'	940
Residential Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Recorded Investment	'	'
Unpaid Principal Balance	'	'
Home Equity [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Related Allowance	'	'
Recorded Investment	'	'
Unpaid Principal Balance	'	'
Consumer [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Related Allowance	'	'
Recorded Investment	'	'
Unpaid Principal Balance	'	'

Loans_Net_Summary_of_Impaired_1

Loans, Net - Summary of Impaired and Non-Accrual Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	$13,542	$9,618	$10,673
Recognized, Interest Income	750	124	305
Interest Income, Recognized on a Cash Basis	392	44	288
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	5,985	4,725	3,580
Recognized, Interest Income	512	21	36
Interest Income, Recognized on a Cash Basis	332	21	36
Commercial Portfolio Segment [Member] | Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	6,864	4,158	4,370
Recognized, Interest Income	181	72	152
Interest Income, Recognized on a Cash Basis	10	17	147
Commercial Portfolio Segment [Member] | Construction [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	693	735	1,011
Recognized, Interest Income	7	25	40
Interest Income, Recognized on a Cash Basis	'	'	28
Consumer Portfolio Segment [Member] | Residential Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	'	'	1,536
Recognized, Interest Income	39	5	63
Interest Income, Recognized on a Cash Basis	39	5	63
Consumer Portfolio Segment [Member] | Home Equity [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	'	'	82
Recognized, Interest Income	9	'	7
Interest Income, Recognized on a Cash Basis	9	'	7
Consumer Portfolio Segment [Member] | Consumer [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average Recorded Investment on Impaired Loans	'	'	94
Recognized, Interest Income	2	1	7
Interest Income, Recognized on a Cash Basis	$2	$1	$7

Loans_Net_Summary_of_NonAccrua

Loans, Net - Summary of Non-Accrual Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	$16,015	$14,710
Commercial Portfolio Segment [Member] | Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	2,663	5,538
Commercial Portfolio Segment [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	8,640	5,596
Commercial Portfolio Segment [Member] | Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	279	349
Consumer Portfolio Segment [Member] | Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	3,212	2,970
Consumer Portfolio Segment [Member] | Home Equity [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	1,157	137
Consumer Portfolio Segment [Member] | Consumer [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Summary of non-accrual loans	$64	$120

Loans_Net_Modifications_Deemed

Loans, Net - Modifications, Deemed to be Troubled Debt Restructures (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	Contract	Contract
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	5	7
Pre-Modification Recorded Investment	$4,465	$1,964
Post-Modification Recorded Investment	4,322	1,964
Commercial and Industrial [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	3	1
Pre-Modification Recorded Investment	2,013	140
Post-Modification Recorded Investment	1,580	140
Commercial Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	2	4
Pre-Modification Recorded Investment	2,452	1,211
Post-Modification Recorded Investment	2,742	1,211
Construction [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Number of Contracts	'	2
Pre-Modification Recorded Investment	'	613
Post-Modification Recorded Investment	'	$613

Loans_Net_Companys_Loan_Class_

Loans, Net - Company's Loan Class by Internally Assigned Grades (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	$1,218,501	$1,173,662
Consumer Loan	663,338	642,414
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	1,137,814	1,083,715
Consumer Loan	658,904	639,503
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	31,788	45,512
Consumer Loan	'	'
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	48,834	43,782
Consumer Loan	4,434	2,911
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	65	653
Consumer Loan	'	'
Residential [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	466,604	441,874
Residential [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	463,392	439,201
Residential [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Residential [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	3,212	2,673
Residential [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Home Equity [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	179,502	179,039
Home Equity [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	178,344	178,920
Home Equity [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Home Equity [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	1,158	119
Home Equity [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Consumer [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	17,232	21,501
Consumer [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	17,168	21,382
Consumer [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Consumer [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	64	119
Consumer [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Consumer Loan	'	'
Commercial and Industrial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	293,094	306,192
Commercial and Industrial [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	268,359	275,279
Commercial and Industrial [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	6,175	14,788
Commercial and Industrial [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	18,495	15,472
Commercial and Industrial [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	65	653
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	862,596	814,692
Commercial Real Estate [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	811,192	762,240
Commercial Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	24,185	29,092
Commercial Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	27,219	23,360
Commercial Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	'	'
Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	62,811	52,778
Construction [Member] | Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	58,263	46,196
Construction [Member] | Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	1,428	1,632
Construction [Member] | Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	3,120	4,950
Construction [Member] | Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Commercial Loan	'	'

Loans_Net_Summary_of_Acquired_

Loans, Net - Summary of Acquired Impaired Loan Information of NEBS (Detail) (New England Bancshares, Inc. [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Contractual Required Payments Receivable [Member]	'	'
Purchased Credit Impaired Loans [Line Items]	'	'
Beginning Balance	$9,894	$9,911
Collections	-2	-17
Impairment	'	'
Transfer to accretable yield	'	'
Transfer to business banking unit	-421	'
Paid off	-2,934	'
Transfer to OREO	-637	'
Charged off	-200	'
Ending Balance	5,700	9,894
Cash Expected To Be Collected [Member]	'	'
Purchased Credit Impaired Loans [Line Items]	'	'
Beginning Balance	7,024	7,041
Collections	-2	-17
Impairment	-329	'
Transfer to accretable yield	1,264	'
Transfer to business banking unit	-421	'
Paid off	-2,242	'
Transfer to OREO	-637	'
Charged off	-200	'
Ending Balance	4,457	7,024
Non - Accretable Difference [Member]	'	'
Purchased Credit Impaired Loans [Line Items]	'	'
Beginning Balance	2,870	2,870
Collections	'	'
Impairment	329	'
Transfer to accretable yield	-1,268	'
Transfer to business banking unit	'	'
Paid off	-688	'
Transfer to OREO	'	'
Charged off	'	'
Ending Balance	1,243	2,870
Accretable Yield [Member]	'	'
Purchased Credit Impaired Loans [Line Items]	'	'
Beginning Balance	'	'
Collections	'	'
Impairment	'	'
Transfer to accretable yield	1,268	'
Transfer to business banking unit	'	'
Paid off	'	'
Transfer to OREO	'	'
Charged off	'	'
Ending Balance	1,268	'
Loans Receivable [Member]	'	'
Purchased Credit Impaired Loans [Line Items]	'	'
Beginning Balance	7,024	7,041
Collections	-2	-17
Impairment	-329	'
Transfer to accretable yield	1,264	'
Transfer to business banking unit	-421	'
Paid off	-2,242	'
Transfer to OREO	-637	'
Charged off	-200	'
Ending Balance	$4,457	$7,024

Loans_Net_Summary_of_Acquired_1

Loans, Net - Summary of Acquired Impaired Loan Information of CNB Financial (Detail) (CNB Financial [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012
Contractual Required Payments Receivable [Member]	'	'	'
Purchased Credit Impaired Loans [Line Items]	'	'	'
Beginning Balance	$1,140	'	'
2011 Collections	-37	'	'
Impairment	'	'	'
Transfer to accretable yield	'	'	'
Accretable yield recognized in earnings	'	'	'
Disposition	-1,103	'	'
Ending Balance	'	'	'
Cash Expected To Be Collected [Member]	'	'	'
Purchased Credit Impaired Loans [Line Items]	'	'	'
Beginning Balance	172	'	'
2011 Collections	-37	'	'
Impairment	-135	'	'
Transfer to accretable yield	'	'	'
Accretable yield recognized in earnings	'	'	'
Disposition	'	'	'
Ending Balance	'	'	'
Non - Accretable Difference [Member]	'	'	'
Purchased Credit Impaired Loans [Line Items]	'	'	'
Beginning Balance	968	'	'
2011 Collections	'	'	'
Impairment	'	'	'
Transfer to accretable yield	-100	'	'
Accretable yield recognized in earnings	'	'	'
Disposition	-868	'	'
Ending Balance	'	'	'
Accretable Yield [Member]	'	'	'
Purchased Credit Impaired Loans [Line Items]	'	'	'
Beginning Balance	'	'	'
2011 Collections	'	'	'
Impairment	'	'	'
Transfer to accretable yield	100	'	'
Accretable yield recognized in earnings	-100	'	'
Disposition	'	'	'
Ending Balance	'	'	'
Loans Receivable [Member]	'	'	'
Purchased Credit Impaired Loans [Line Items]	'	'	'
Beginning Balance	172	'	'
2011 Collections	-37	'	'
Impairment	-135	'	'
Transfer to accretable yield	'	'	'
Accretable yield recognized in earnings	'	'	'
Disposition	'	'	'
Ending Balance	'	'	'

Banking_Premises_and_Equipment2

Banking Premises and Equipment - Composition of Banking Premises and Equipment (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Thousands, unless otherwise specified

Buildings and Improvements [Member]

Buildings and Improvements [Member]

Leasehold Improvements [Member]

Leasehold Improvements [Member]

Furniture and Equipment [Member]

Furniture and Equipment [Member]

Assets under Capitalized Leases [Member]

Assets under Capitalized Leases [Member]

Land and Improvements [Member]

Land and Improvements [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Buildings and Improvements [Member]

Leasehold Improvements [Member]

Furniture and Equipment [Member]

Assets under Capitalized Leases [Member]

Buildings and Improvements [Member]

Furniture and Equipment [Member]

Property, Plant and Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Premises and equipment

$37,346

$34,539

$17,864

$15,140

$2,598

$3,078

$7,343

$7,320

$5,359

$5,359

$4,182

$3,642

'

'

'

'

'

'

Less accumulated depreciation and amortization

-11,760

-9,475

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net

$25,586

$25,064

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Buildings and improvements

'

'

'

'

'

'

'

'

'

'

'

'

'25 years

'

'3 years

'

'40 years

'10 years

Assets under capitalized leases

'

'

'

'

'

'

'

'

'

'

'

'

'

'Lesser of useful life or term of lease

'

'Lesser of lease term or useful life

'

'

Banking_Premises_and_Equipment3

Banking Premises and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leased Assets [Line Items]	'	'	'
Depreciation and amortization expense, including amortization for capitalized leases	$2,854	$1,865	$1,320
Expiration of non-cancelable leases	'2034	'	'
Rent expense	$2,362	$1,474	$1,302
Capital Lease Obligations [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of lease obligations	3	'	'
Operating Leases [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of lease obligations	18	'	'
Branches [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of operating leases	21	'	'
ATM Facilities [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of operating leases	2	'	'
Financial Services Offices [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of operating leases	1	'	'
Loan Production Offices [Member]	'	'	'
Operating Leased Assets [Line Items]	'	'	'
Number of operating leases	2	'	'

Banking_Premises_and_Equipment4

Banking Premises and Equipment - Future Minimum Rental Commitments under Lease Terms (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property Plant And Equipment [Abstract]	'	'
Operating Leases, 2014	$2,182	'
Operating Leases, 2015	2,145	'
Operating Leases, 2016	1,935	'
Operating Leases, 2017	1,600	'
Operating Leases, 2018	1,404	'
Operating Leases, Thereafter	10,468	'
Operating Leases, Total minimum lease payments	19,734	'
Capital Leases, 2014	423	'
Capital Leases, 2015	424	'
Capital Leases, 2016	424	'
Capital Leases, 2017	424	'
Capital Leases, 2018	424	'
Capital Leases, Thereafter	4,804	'
Capital Leases, Total minimum lease payments	6,923	'
Capital Leases, Less interest included above	-2,384	'
Capital Leases, Capitalized lease obligations	4,539	4,711
Total, 2014	2,605	'
Total, 2015	2,569	'
Total, 2016	2,359	'
Total, 2017	2,024	'
Total, 2018	1,828	'
Total, Thereafter	15,272	'
Total, Total minimum lease payments	$26,657	'

Deposits_Deposit_Accounts_Deta

Deposits - Deposit Accounts (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'	'
Demand	$342,000	$307,302
NOW	92,696	87,983
Savings	342,605	350,188
Money market	435,171	395,293
Certificates of deposit	734,012	707,409
Total deposits	$1,946,484	$1,848,175

Deposits_Scheduled_Maturities_

Deposits - Scheduled Maturities of Time Deposits (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Deposit [Line Items]	'
2014	$428,092
2015	168,027
2016	49,638
2017	53,452
2018	31,843
Total	731,052
Time Deposits, Greater Than $100 [Member]	'
Deposit [Line Items]	'
2014	231,928
2015	90,908
2016	32,794
2017	28,732
2018	22,015
Total	406,377
Time Deposits, Less Than $100 [Member]	'
Deposit [Line Items]	'
2014	196,164
2015	77,119
2016	16,844
2017	24,720
2018	9,828
Total	$324,675

Deposits_Scheduled_Maturities_1

Deposits - Scheduled Maturities of Time Deposits (Parenthetical) (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Banking And Thrift [Abstract]	'
Brokered deposits	$20,045
Unamortized fair value adjustment balance	$2,960

Deposits_Interest_Expense_on_D

Deposits - Interest Expense on Deposits, Classified by Type (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Banking And Thrift [Abstract]	'	'	'
NOW	$277	$204	$159
Regular savings	1,196	1,328	1,694
Money market	1,603	1,501	1,963
Certificates of deposit	8,320	7,433	8,633
Total	$11,396	$10,466	$12,449

ShortTerm_Borrowings_Additiona

Short-Term Borrowings - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Facility	Facility
Line of Credit Facility [Line Items]	'	'	'
Number of FHLBB advances	1	2	'
Total FHLBB advances	$20,000	$30,000	'
Line of credit, borrowings	0	0	'
Available line of credit balance	12,000	'	'
FHLBB unused borrowing capacity	338,698	308,683	'
Customer repurchase agreements	41,555	49,229	'
Interest on security sold under repurchase agreements	42	55	121
FHLBB [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Weighted average interest rate on securities	'	0.32%	'
Interest rate on securities	16.00%	'	'
FHLBB unused borrowing capacity	$217,041	'	'
Securities Sold under Agreements to Repurchase [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Weighted average interest rate on securities	0.33%	0.57%	'

LongTerm_Debt_Schedule_of_Adva

Long-Term Debt - Schedule of Advances Outstanding (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Amount, 2013	'	$39,914
Amount, 2014	13,000	13,000
Amount, 2015	8,756	'
Amount, 2016	18,827	9,689
Amount, 2017	33,000	33,000
Amount, 2018	17,758	5,000
Amount, Thereafter	27,722	10,000
Amount, Total	$119,063	$110,603
Weighted Average Rate, 2013	'	4.05%
Weighted Average Rate, 2014	2.90%	2.90%
Weighted Average Rate, 2015	0.55%	'
Weighted Average Rate, 2016	1.28%	1.56%
Weighted Average Rate, 2017	2.89%	2.89%
Weighted Average Rate, 2018	2.15%	3.75%
Weighted Average Rate, Thereafter	1.96%	1.50%
Weighted Average Rate, Total	2.14%	3.11%

LongTerm_Debt_Schedule_of_Adva1

Long-Term Debt - Schedule of Advances Outstanding (Parenthetical) (Detail) (CNB Financial [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
CNB Financial [Member]	'	'
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]	'	'
Fair value of debt adjustments	$600	$922

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2009

Dec. 31, 2008

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Nov. 30, 2009

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Reverse Repurchase Agreements [Member]

Reverse Repurchase Agreements [Member]

Reverse Repurchase Agreements [Member]

Reverse Repurchase Agreements [Member]

Reverse Repurchase Agreements [Member]

FHLBB [Member]

Subordinated Debt [Member]

Subordinated Debt [Member]

Subordinated Debt [Member]

CNB Financial [Member]

CNB Financial [Member]

CNB Financial [Member]

CNB Financial [Member]

New England Bancshares, Inc. [Member]

Secured borrowings [Member]

Secured borrowings [Member]

Agreement

Subordinated Debt [Member]

Subordinated Debt [Member]

Subordinated Debt [Member]

Subordinated Debt [Member]

Facility

Facility

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Advances

$21,000

'

'

'

'

'

'

'

$21,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value adjustment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,299

'

'

'

'

'

'

'

'

'

'

Prepayment expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

Secured borrowings

2,589

'

'

'

2,444

'

'

'

2,589

2,444

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of secured borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

2

Reverse repurchase agreements

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,000

10,000

'

'

'

'

'

'

'

'

'

'

'

Reverse repurchase agreement, maturity date

'

'

'

'

'

'

'

'

'

'

'

'2019

'2018

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate

'

'

'

'

'

'

'

'

'

'

'

2.44%

2.73%

'

'

'

'

'

'

2.21%

'

2.09%

2.09%

'

'

'

'

Reverse repurchase agreement, interest expense

3,779

3,880

3,850

3,894

3,896

3,520

3,705

3,871

15,403

14,992

18,261

526

526

538

'

'

'

'

'

'

'

'

'

'

'

'

'

Structured term reverse repurchase agreements

'

'

'

'

'

'

'

'

'

'

'

2,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Face amount of subordinate debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,732

'

'

'

'

4,124

'

'

Fair value acquisition discount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,383

'

'

'

Unamortized discount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,773

'

'

'

'

'

'

'

'

Date of acquisition agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Jan-09

'

'

'

'

'

'

Maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15-Mar-36

'

'

'

'

LIBOR rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.90%

'

'

'

1.85%

'

'

'

'

'

Income_Taxes_Provision_for_Fed

Income Taxes - Provision for Federal and State Income Taxes (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current tax (benefit) provision:	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	($2,880)	$3,188	$6,177
State	'	'	'	'	'	'	'	'	43	1,793	1,700
Total	'	'	'	'	'	'	'	'	-2,837	4,981	7,877
Deferred tax provision (benefit):	'	'	'	'	'	'	'	'	'	'	'
Federal	'	'	'	'	'	'	'	'	7,169	-177	-3,293
State	'	'	'	'	'	'	'	'	2,130	-1,009	-906
Total	'	'	'	'	'	'	'	'	9,299	-1,186	-4,199
Provision for income taxes	$1,454	$1,714	$1,504	$1,790	$942	$890	$1,064	$899	$6,462	$3,795	$3,678

Income_Taxes_Summary_of_Differ

Income Taxes - Summary of Difference Between Statutory Federal Income Tax Rate and Effective Rate (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Statutory federal income tax rate	35.00%	35.00%	35.00%
Increase (decrease) resulting from:	'	'	'
State taxes, net of federal tax benefit	5.90%	6.90%	3.50%
Stock-based compensation	0.50%	1.90%	0.90%
Tax-exempt obligations	-3.50%	-8.50%	-4.10%
Tax credits	-8.10%	-21.60%	-8.00%
Bank owned life insurance	-3.00%	-7.60%	-3.50%
Non-deductible acquisition expenses	0.70%	11.90%	'
ESOP termination expense	'	28.30%	'
Other, net	-0.40%	4.80%	0.90%
Effective tax rate	27.10%	51.10%	24.70%

Income_Taxes_Components_of_Net

Income Taxes - Components of Net Deferred Tax Asset (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax asset:	'	'
Deferred tax asset	$21,561	$28,704
Deferred tax liability:	'	'
Deferred tax liability	-6,600	-8,526
Net deferred tax asset	14,961	20,178
Federal [Member]	'	'
Deferred tax asset:	'	'
Deferred tax asset	16,477	22,632
Deferred tax liability:	'	'
Deferred tax liability	-4,416	-6,989
State [Member]	'	'
Deferred tax asset:	'	'
Deferred tax asset	5,084	6,072
Deferred tax liability:	'	'
Deferred tax liability	($2,184)	($1,537)

Income_Taxes_Summary_of_Tax_Ef

Income Taxes - Summary of Tax Effects of Each Type of Income and Expense Item (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Income Tax Disclosure [Abstract]	'	'
Cash basis of accounting	$232	($410)
Investments:	'	'
Net unrealized loss (gain) on securities available for sale	213	-3,847
Impairment losses	622	1,056
Partnerships and other investments	-975	-388
Retirement benefits	555	533
Depreciation	219	148
Purchase accounting adjustments	373	2,812
Allowance for loan losses	5,896	4,938
Employee benefit plans	3,582	3,726
Market value adjustment on loans	3,183	10,446
Net operating loss carryforward	1,162	1,162
Other	-101	2
Net deferred tax asset	$14,961	$20,178

Income_Taxes_Summary_of_Change

Income Taxes - Summary of Change in Net Deferred Tax Asset (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]	'	'
Balance at beginning of year	$20,178	$14,006
Expense (benefit)	-9,299	1,186
Recorded due to acquisition of NEBS	'	4,256
Tax effect of changes in accumulated other comprehensive income (loss)	4,082	730
Balance at end of year	$14,961	$20,178

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	Dec. 31, 1995
In Thousands, unless otherwise specified
Income Tax Disclosure [Abstract]	'
Deferred tax liability	$2,400
Cumulative tax deductions	$5,900

Earnings_Per_Share_Calculation

Earnings Per Share - Calculation of Basic and Diluted Earnings Per Common Share (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income	$4,005	$4,647	$4,049	$4,701	($4,732)	$2,929	$2,582	$2,849	$17,402	$3,628	$11,184
Weighted average common shares applicable to basic EPS	'	'	'	'	'	'	'	'	19,779,667	15,234,896	14,929,714
Effect of dilutive potential common shares	'	'	'	'	'	'	'	'	293,552	186,881	268,988
Weighted average common shares applicable to diluted EPS	'	'	'	'	'	'	'	'	20,073,219	15,421,777	15,198,702
Earnings per share:	'	'	'	'	'	'	'	'	'	'	'
Basic	$0.20	$0.24	$0.21	$0.23	($0.28)	$0.20	$0.18	$0.19	$0.88	$0.24	$0.75
Diluted	$0.20	$0.23	$0.20	$0.23	($0.28)	$0.20	$0.17	$0.19	$0.87	$0.24	$0.74

Earnings_Per_Share_Calculation1

Earnings Per Share - Calculation of Basic and Diluted Earnings Per Common Share (Parenthetical) (Detail) (Stock Options [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options [Member]	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'
Options to purchase, shares	131,764	241,300	233,390

StockBased_Incentive_Plans_Add

Stock-Based Incentive Plans - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Contractual life of stock options granted	'10 years	'	'
Stock option vesting period	'5 years	'	'
Stock options weighted average value	$3.27	$3.37	$4
Compensation cost for shared-based payment arrangements	$1,045	$1,453	$1,891
Excess tax benefits on stock compensation plans	73	29	91
Compensation costs of non-vested stock awards and options	1,205	'	'
Estimated weighted average period	'2 years 8 months 12 days	'	'
2008 Equity Incentive Plan [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Incentive Plan in effect	'10 years	'	'
Common stock pursuant to grants	1,258,534	'	'
Shares issued pursuant to exercise of stock options	898,953	'	'
Shares issued pursuant to restricted stock awards	359,581	'	'
Stock options granted	7,500	79,000	'
Stock options weighted average value	$3.27	$3.37	'
Grant date fair value	'	266	'
Restricted shares	'	29,500	'
Restricted shares weighted average value	'	$15.09	'
2008 Equity Incentive Plan [Member] | Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Grant date fair value	$25	$445	'
2006 Stock-Based Incentive Plan [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Incentive Plan in effect	'10 years	'	'
Common stock pursuant to grants	1,180,330	'	'
Shares issued pursuant to exercise of stock options	843,093	'	'
Shares issued pursuant to restricted stock awards	337,237	'	'
Exercise prices for outstanding options by exchange ratio	1.04079	'	'

StockBased_Incentive_Plans_Com

Stock-Based Incentive Plans - Combined Summary of Activity in Incentive Plans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Balance at December 31, 2011, Shares Available for Grant	286,753	348,629
Granted, Shares Available for Grant	-7,500	-108,500
Shares vested, Shares Available for Grant	'	'
Forfeited, Shares Available for Grant	'	35,100
Cancelled, Shares Available for Grant	483	11,524
Balance at December 31, 2012, Shares Available for Grant	279,736	286,753
Balance at December 31, 2012, Number of Shares	1,076,108	'
Stock options exercised, Weighted-Average Grant Value	$12.24	'
Balance at December 31, 2012, Weighted-Average Exercise Price	$12.54	'
Stock Options Outstanding [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Balance at December 31, 2011, Number of Shares	1,602,040	1,660,915
Granted, Number of Shares	7,500	79,000
Stock options exercised, Number of Shares	-532,949	-99,251
Shares vested, Number of Shares	'	'
Forfeited, Number of Shares	'	-28,100
Cancelled, Number of Shares	-483	-10,524
Balance at December 31, 2012, Number of Shares	1,076,108	1,602,040
Balance at December 31, 2011, Weighted-Average Exercise Price	$12.59	12.43
Granted, Weighted-Average Exercise Price	$15.04	15.03
Stock options exercised, Weighted-Average Exercise Price	$12.72	12.18
Shares vested, Weighted-Average Exercise Price	'	'
Forfeited, Weighted-Average Exercise Price	'	12.3
Cancelled, Weighted-Average Exercise Price	$14.87	11.69
Balance at December 31, 2012, Weighted-Average Exercise Price	$12.54	12.59
Stock Awards Outstanding [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Balance at December 31, 2011, Number of Shares	113,600	167,050
Granted, Number of Shares	'	29,500
Stock options exercised, Number of Shares	'	'
Shares vested, Number of Shares	-74,850	-74,950
Forfeited, Number of Shares	'	-7,000
Cancelled, Number of Shares	'	-1,000
Balance at December 31, 2012, Number of Shares	38,750	113,600
Beginning balance, Weighted-Average Grant Value	$13.38	12.42
Granted, Weighted-Average Grant Value	'	15.09
Stock options exercised, Weighted-Average Grant Value	'	'
Shares vested, Weighted-Average Grant Value	$12.35	12.08
Forfeited, Weighted-Average Grant Value	'	11.81
Cancelled, Weighted-Average Grant Value	'	11.66
Ending balance, Weighted-Average Grant Value	$15.36	13.38

StockBased_Incentive_Plans_Ass

Stock-Based Incentive Plans - Assumptions to Compute Fair Value of Options Granted in Black-Scholes Option Pricing Model (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Weighted average fair value	$3.27	$3.37	$4
Expected term (short-cut method)	'6 years 6 months	'6 years 6 months	'6 years 6 months
Volatility	29.03%	29.67%	28.76%
Expected dividend yield	2.66%	2.57%	2.25%
Weighted average risk-free interest rate	1.30%	1.20%	2.14%

StockBased_Incentive_Plans_Sum

Stock-Based Incentive Plans - Summary of Stock Options Outstanding and Exercisable (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Total number of shares, Outstanding	1,076,108
Weighted average exercise price, Outstanding	$12.54
Aggregate intrinsic value, Outstanding	$6,837
Weighted average remaining contractual term, Outstanding	'4 years 4 months 24 days
Total number of shares, Exercisable	947,558
Weighted average exercise price, Exercisable	$12.24
Aggregate intrinsic value, Exercisable	$6,303
Weighted average remaining contractual term, Exercisable	'3 years 10 months 24 days

Employee_Benefit_Plans_Additio

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

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

6 Months Ended

12 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2013

Dec. 31, 2012

2005 [Member]

Unearned Compensation [Member]

Unearned Compensation [Member]

Unearned Compensation [Member]

Unearned Compensation [Member]

New England Bank [Member]

New England Bank [Member]

United Bank [Member]

United Bank [Member]

ESOP [Member]

ESOP [Member]

ESOP [Member]

ESOP [Member]

ESOP Twenty-Year Note [Member]

ESOP Twenty-Year Note [Member]

Directors Fee Continuation Plan [Member]

Directors Fee Continuation Plan [Member]

Directors Fee Continuation Plan [Member]

Directors Fee Continuation Plan [Member]

Director Retirement Plan [Member]

Director Retirement Plan [Member]

Director Retirement Plan [Member]

Director Retirement Plan [Member]

Director Retirement Plan [Member]

SERP [Member]

SERP [Member]

SERP [Member]

SERP [Member]

SERP [Member]

Pentegra DB Plan [Member]

Pentegra DB Plan [Member]

2005 [Member]

2007 [Member]

Unearned Compensation [Member]

2005 [Member]

2005 [Member]

2007 [Member]

Director [Member]

Former Chairpersons [Member]

Installment

Minimum [Member]

Maximum [Member]

10 years of service [Member]

Highest three years [Member]

New England Bank [Member]

New England Bank [Member]

Maximum [Member]

Age

Age

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Directors Fee Continuation Plan liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$185

$235

'

'

'

'

'

'

'

$828

$911

'

$224

$243

'

'

Expense for the Executive Supplemental Compensation Agreements

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

43

35

36

'

'

'

'

Directors annual fee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15

24

'

'

'

'

'

'

'

'

'

'

'

'

Normal retirement age

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

72

'

'

65

'

'

'

'

'

'

'

'

Normal retirement benefit as a percentage of average annual director's fees

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

100.00%

'

70.00%

'

'

'

'

'

'

'

Director's final years of service

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

Normal retirement benefit payable in annual installments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10

'

'

'

'

'

'

'

'

'

'

'

Maximum period after the director's separation from service

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'60 days

'

'

'

'

'

'

'

'

'

'

'

Percentage of director's benefit upon separation from service due to death, disability or change in control

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

Unrecognized prior service cost amortization period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'6 years

'

'

'

'

'7 years

'

'

'

'

'

'

Prior service cost to be recognized in future

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

43

'

'

'

'

200

'

'

'

'

'

'

Unrecognized net loss to be recognized in future

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52

'

'

'

'

'

'

'

'

'

'

'

Additional common stock issued to ESOP in exchange for twenty-year note

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

641,301

753,834

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock exchange ratio

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.04079

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common stock issued adjusted by exchange ratio

'

'

'

'

'

'

'

'

'

667,458

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unearned Compensation recorded in Stockholders Equity

'

'

'

'

'

'

'

1,089

1,114

'

697

703

6,413

7,538

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum allocation period voted for ESOP benefits

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'15 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares held in trust

'

'

'

357,053

'

'

'

357,053

71,709

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of outstanding loan through sale of shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

664,552

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Closing price of treasury shares

'

'

'

$15.72

'

'

'

$15.72

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Compensation expense applicable to ESOP

'

'

'

'

'

'

0

1,089

1,114

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total expense applicable to the termination of the ESOP

'

'

'

4,482

'

'

'

4,482

'

'

'

'

'

'

198

'

4,482

9,350

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of unallocated shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

16,436

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Participant shares in plan to purchase shares

'

'

'

'

'

'

'

'

1,021,504

'

'

'

'

'

220,245

220,245

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition-related expenses

598

123

158

3,944

366

592

'

284

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

ESOP plan termination - New England, Shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

128,469

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Funded status of Pentegra DB Plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

111.60%

'

Contribution to defined benefit plan, maximum

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.00%

Contribution accrued

'

'

'

'

'

'

'

900

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional contribution to defined benefit plan

'

'

'

'

'

'

$48

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee_Benefit_Plans_Changes

Employee Benefit Plans - Changes in Projected Benefit Obligation (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
SERP [Member]	'	'
Change in projected benefit obligation:	'	'
Beginning of period	$5,072	$3,870
Service cost	441	401
Interest cost	220	189
Actuarial (gain)/loss	-66	3
Plan amendments	'	609
Benefits paid	-55	'
End of period	5,612	5,072
Accrued benefit cost	5,612	5,072
Director Retirement Plan [Member]	'	'
Change in projected benefit obligation:	'	'
Beginning of period	1,149	1,205
Service cost	61	55
Interest cost	60	44
Actuarial (gain)/loss	297	25
Plan amendments	'	41
Benefits paid	-26	-221
End of period	1,541	1,149
Accrued benefit cost	$1,541	$1,149

Employee_Benefit_Plans_Amounts

Employee Benefit Plans - Amounts Recognized in Accumulated Other Comprehensive Income (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
SERP [Member]	'	'
Amounts recognized in accumulated other comprehensive income consist of:	'	'
Prior service cost	($975)	($1,174)
Net gain/(losses)	182	116
Total	-793	-1,058
Director Retirement Plan [Member]	'	'
Amounts recognized in accumulated other comprehensive income consist of:	'	'
Prior service cost	-137	-180
Net gain/(losses)	-428	-194
Total	($565)	($374)

Employee_Benefit_Plans_Weighte

Employee Benefit Plans - Weighted-Average Assumptions used to Determine Benefit Obligations (Detail)	Dec. 31, 2013	Dec. 31, 2012
SERP [Member]	'	'
Weighted-average assumptions used to determine benefit obligations:	'	'
Discount rate	5.00%	4.00%
Rate of compensation increase	5.00%	5.00%
Director Retirement Plan [Member]	'	'
Weighted-average assumptions used to determine benefit obligations:	'	'
Discount rate	5.00%	4.00%
Rate of compensation increase	2.00%	2.00%

Employee_Benefit_Plans_Compone

Employee Benefit Plans - Components of Net Periodic Benefit Cost (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
SERP [Member]	'	'
Periodic benefit cost:	'	'
Service cost	$441	$401
Interest cost	220	189
Total pension cost	661	590
Prior service cost amortization	200	200
Net loss amortization	'	'
Net periodic benefit cost	861	790
Director Retirement Plan [Member]	'	'
Periodic benefit cost:	'	'
Service cost	61	55
Interest cost	60	44
Total pension cost	121	99
Prior service cost amortization	43	43
Net loss amortization	62	48
Net periodic benefit cost	$226	$190

Employee_Benefit_Plans_Weighte1

Employee Benefit Plans - Weighted-Average Assumptions used to Determine Net Periodic Benefit Cost (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
SERP [Member]	'	'
Weighted-average assumptions used to determine net periodic benefit cost:	'	'
Discount rate	4.00%	4.25%
Rate of compensation increase	5.00%	5.00%
Director Retirement Plan [Member]	'	'
Weighted-average assumptions used to determine net periodic benefit cost:	'	'
Discount rate	4.00%	4.25%
Rate of compensation increase	2.00%	2.00%

Employee_Benefit_Plans_Benefit

Employee Benefit Plans - Benefit Payments Expected Future Costs (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
SERP [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014	$3,359
2015	56
2016	1,219
2017	55
2018	56
2019 through 2023	278
Total for the next ten years	5,023
Director Retirement Plan [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014	512
2015	26
2016	366
2017	26
2018	391
2019 through 2023	439
Total for the next ten years	$1,760

Employee_Benefit_Plans_Shares_

Employee Benefit Plans - Shares Held by ESOP (Detail)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Allocated	733,366	376,483	308,915
Committed to be released	'	357,053	71,709
Unallocated	'	'	1,021,504
Total shares held by the ESOP	733,366	733,536	1,402,128

Commitments_and_Contingencies_1

Commitments and Contingencies - Financial Instruments with Off-Balance Sheet Risk (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commitments And Contingencies Disclosure [Abstract]	'	'
Unused lines of credit	$338,698	$308,683
Amounts due mortgagors	102,126	36,365
Standby letters of credit	5,443	3,573
Commitments to originate loans	$33,899	$63,974

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Detail) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Aug. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Low Income Housing Tax Credit [Member]

Low Income Housing Tax Credit [Member]

Low Income Housing Tax Credit [Member]

Low Income Housing Tax Credit [Member]

New Markets Housing Tax Credit Fund [Member]

New Markets Housing Tax Credit Fund [Member]

New Markets Housing Tax Credit Fund [Member]

New Markets Housing Tax Credit Fund [Member]

New Market Tax Credit Fund [Member]

New Market Tax Credit Fund [Member]

2016 [Member]

Chief Executive Officer [Member]

Executive officers [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Class A [Member]

Class B [Member]

New Markets Housing Tax Credit Fund [Member]

Commitment And Contingencies [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitments to originate loans

$5,251

$15,591

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fixed rate commitments interest ranges

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.02%

2.50%

5.75%

6.50%

Collateral extent percentage

100.00%

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reserve for unfunded commitments

142

213

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Commitment to invest in housing tax credits fund

'

'

10,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment in fund

'

'

8,882

'

'

'

1,806

'

1,138

'

'

979

1,123

'

'

'

'

'

'

Net operating losses

'

'

2,288

'

'

'

43

'

265

'

'

'

'

'

'

'

'

'

'

Amount invested in fund, net carrying value

'

'

6,594

6,871

'

'

1,806

1,763

873

275

979

'

1,123

'

'

'

'

'

'

Representing percentage of Class A

'

'

'

'

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Transfer of investment period

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of tax credits and tax benefits

'

'

'

'

95.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net operating losses period

'

'

'P86

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of interest

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

Commitment to invest in housing tax credit fund

'

'

'

'

'

'

'

'

$3,000

$2,000

'

'

'

'

'

'

'

'

'

Change in control agreement term

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years

'3 years

'

'

'

'

Agreement expiry year

'

'

'

'

'

'

'

'

'

'

'

'

'

'2014

'

'

'

'

'

Fair_Values_of_Financial_Instr2

Fair Values of Financial Instruments - Assets Measured at Fair Value on Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	$264,629	$294,322
Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,851	3,233
Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	236,454	257,762
Private Label Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	2,566
Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	24,718	28,827
Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,606	1,934
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	263,023	292,388
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,606	1,934
Assets Measured at Fair Value on a Recurring Basis [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	264,629	294,322
Assets Measured at Fair Value on a Recurring Basis [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,851	3,233
Assets Measured at Fair Value on a Recurring Basis [Member] | Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	236,454	257,762
Assets Measured at Fair Value on a Recurring Basis [Member] | Private Label Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	2,566
Assets Measured at Fair Value on a Recurring Basis [Member] | Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	24,718	28,827
Assets Measured at Fair Value on a Recurring Basis [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,606	1,934
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member] | Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member] | Private Label Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member] | Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 1 [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	263,023	292,388
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,851	3,233
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member] | Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	236,454	257,762
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member] | Private Label Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	2,566
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member] | Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	24,718	28,827
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 2 [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	1,606	1,934
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member] | Government-Sponsored and Government-Guaranteed Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member] | Private Label Mortgage-Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member] | Municipal Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	'	'
Assets Measured at Fair Value on a Recurring Basis [Member] | Level 3 [Member] | Corporate Bonds [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Available-for-sale Securities, Fair Value, Total	$1,606	$1,934

Fair_Values_of_Financial_Instr3

Fair Values of Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value Disclosures [Abstract]	'	'	'	'
Fair value liabilities measured on recurring basis	'	$0	$0	'
Impairment charges on securities	$37	'	$202	$99
Short-term borrowings maturity period	'	'90 days	'	'

Fair_Values_of_Financial_Instr4

Fair Values of Financial Instruments - Changes in Level 3 Recurring Fair Value of Financial Instruments (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value Disclosures [Abstract]	'	'
Balance at beginning of year	$1,934	$1,566
Total realized/unrealized gains (losses) included in net income	277	-165
Change in unrealized gain (loss)	-161	533
Sales	-444	'
Balance at end of year	$1,606	$1,934

Fair_Values_of_Financial_Instr5

Fair Values of Financial Instruments - Fair Value Hierarchy used to Determine the Adjustment and Carrying Value of Related Assets (Detail) (Fair Value Measurements Nonrecurring [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gains (Losses) on fair value of Assets	($1,238)	($1,214)
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	1,634	1,966
Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gains (Losses) on fair value loans and other real estate owned	-1,061	-748
Loans [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Loans [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Loans [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	1,235	546
Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gains (Losses) on fair value loans and other real estate owned	-177	-429
Other Real Estate Owned [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Other Real Estate Owned [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Other Real Estate Owned [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	399	825
Other Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gains (Losses) on fair value loans and other real estate owned	'	-37
Other Assets [Member] | Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Other Assets [Member] | Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	'
Other Assets [Member] | Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value	'	$595

Fair_Values_of_Financial_Instr6

Fair Values of Financial Instruments - Fair Values of Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial Assets:	'	'
Securities available for sale	$264,629	$294,322
Securities held to maturity	111,715	85,674
Carrying Value [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	47,241	30,679
Securities available for sale	264,629	294,322
Securities held to maturity	111,185	82,986
Stock in Federal Home Loan Bank of Boston	17,334	18,554
Net loans and loans held for sale	1,871,066	1,808,033
Financial Liabilities:	'	'
Deposits (with no stated maturity)	1,212,472	1,140,766
Time deposits	734,012	707,409
Federal Home Loan Bank of Boston advances	139,663	141,525
Repurchase agreements	61,555	69,229
Subordinated debentures	5,959	9,630
Estimated Fair Value [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	47,241	30,679
Securities available for sale	264,629	294,322
Securities held to maturity	111,715	85,674
Stock in Federal Home Loan Bank of Boston	17,334	18,554
Net loans and loans held for sale	1,865,807	1,846,519
Financial Liabilities:	'	'
Deposits (with no stated maturity)	1,212,472	1,140,766
Time deposits	740,723	711,845
Federal Home Loan Bank of Boston advances	140,778	145,543
Repurchase agreements	61,788	70,082
Subordinated debentures	5,959	9,630
Level 1 [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	47,241	30,679
Securities available for sale	'	'
Securities held to maturity	'	'
Stock in Federal Home Loan Bank of Boston	'	'
Net loans and loans held for sale	'	'
Financial Liabilities:	'	'
Deposits (with no stated maturity)	'	'
Time deposits	'	'
Federal Home Loan Bank of Boston advances	'	'
Repurchase agreements	'	'
Subordinated debentures	'	'
Level 2 [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	'	'
Securities available for sale	263,023	292,388
Securities held to maturity	111,715	85,674
Stock in Federal Home Loan Bank of Boston	'	'
Net loans and loans held for sale	'	'
Financial Liabilities:	'	'
Deposits (with no stated maturity)	'	'
Time deposits	'	'
Federal Home Loan Bank of Boston advances	'	'
Repurchase agreements	'	'
Subordinated debentures	5,959	9,630
Level 3 [Member]	'	'
Financial Assets:	'	'
Cash and cash equivalents	'	'
Securities available for sale	1,606	1,934
Securities held to maturity	'	'
Stock in Federal Home Loan Bank of Boston	17,334	18,554
Net loans and loans held for sale	1,865,807	1,846,519
Financial Liabilities:	'	'
Deposits (with no stated maturity)	1,212,472	1,140,766
Time deposits	740,723	711,845
Federal Home Loan Bank of Boston advances	140,778	145,543
Repurchase agreements	61,788	70,082
Subordinated debentures	'	'

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)	0 Months Ended				12 Months Ended			15 Months Ended
In Thousands, except Share data, unless otherwise specified	Aug. 15, 2013	Nov. 19, 2012	Oct. 18, 2012	Oct. 26, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013
Equity [Abstract]	'	'	'	'	'	'	'	'
Rate of risk-weighted assets	'	'	'	'	4.00%	4.00%	'	4.00%
Rate of adjusted total assets	'	'	'	'	4.00%	4.00%	'	4.00%
Core capital plus general loss allowance	'	'	'	'	8.00%	8.00%	'	8.00%
Risk-weighted factor	'	'	'	'	50.00%	'	'	50.00%
Tangible capital to tangible assets	'	'	'	'	1.50%	1.50%	'	1.50%
Common stock, shares outstanding available for repurchase	970,000,000	'	769,000,000	807,803,000	'	'	'	'
Maximum percent of outstanding common stock available for repurchase	5.00%	'	5.00%	5.00%	'	'	'	'
Common stock repurchased	'	807,803,000	'	'	'	'	'	516,663,000
Cost of common stock repurchased	'	$12,134	'	'	$270	$205	$403	$7,687
Average price of common stock repurchased	'	$15.02	'	'	'	'	'	$14.88

Stockholders_Equity_Schedule_o

Stockholders' Equity - Schedule of Capital Amounts and Ratios (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Equity [Abstract]	'	'
Total Risk-based Capital (to Risk Weighted Assets), Actual	$264,058	$263,712
Tier I Risk-based Capital (to Risk Weighted Assets), Actual	250,645	251,623
Tier I (Core) Capital (to Adjusted Total Assets), Actual	250,645	251,623
Tangible Equity (to Tangible Assets), Actual	250,645	251,623
Total Risk-based Capital (to Risk Weighted Assets), Actual Ratio	13.10%	13.60%
Tier I Risk-based Capital (to Risk Weighted Assets), Actual Ratio	12.40%	13.00%
Tier I (Core) Capital (to Adjusted Total Assets), Actual Ratio	10.30%	10.70%
Tangible Equity (to Tangible Assets), Actual Ratio	10.30%	10.70%
Total Risk-based Capital (to Risk Weighted Assets), For Capital Adequacy Purposes	161,376	155,028
Tier I Risk-based Capital (to Risk Weighted Assets), For Capital Adequacy Purposes	80,688	77,514
Tier I (Core) Capital (to Adjusted Total Assets), For Capital Adequacy Purposes	97,633	94,117
Tangible Equity (to Tangible Assets), For Capital Adequacy Purposes	36,612	35,294
Total Risk-based Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio	8.00%	8.00%
Tier I Risk-based Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio	4.00%	4.00%
Tier I (Core) Capital (to Adjusted Total Assets), For Capital Adequacy Purposes Ratio	4.00%	4.00%
Tangible Equity (to Tangible Assets), For Capital Adequacy Purposes Ratio	1.50%	1.50%
Total Risk-based Capital (to Risk Weighted Assets), To Be Well Capitalized Under Regulatory Framework	201,720	193,786
Tier I Risk-based Capital (to Risk Weighted Assets), To Be Well Capitalized Under Regulatory Framework	121,032	116,271
Tier I (Core) Capital (to Adjusted Total Assets), To Be Well Capitalized Under Regulatory Framework	$122,042	$117,646
Tangible Equity (to Tangible Assets), To Be Well Capitalized Under Regulatory Framework Ratio	10.00%	10.00%
Tier I Risk-based Capital (to Risk Weighted Assets), To Be Well Capitalized Under Regulatory Framework Ratio	6.00%	6.00%
Tier I (Core) Capital (to Adjusted Total Assets), To Be Well Capitalized Under Regulatory Framework Ratio	5.00%	5.00%

Stockholders_Equity_Reconcilia

Stockholders' Equity - Reconciliation of Consolidated Equity to Capital Amounts (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Equity [Abstract]	'	'	'	'
Total consolidated equity	$302,779	$307,189	$227,361	$222,576
Additional equity capital of United Financial Bancorp, Inc.	-8,954	-6,302	'	'
Accumulated other comprehensive income	1,091	-5,401	'	'
Disallowed goodwill and intangible assets	-44,271	-43,863	'	'
Tangible, Tier I and Core Capital	250,645	251,623	'	'
Allowance for loan losses	13,413	12,089	11,132	9,987
Total risk-based capital	$264,058	$263,712	'	'

Condensed_Financial_Statements2

Condensed Financial Statements of United Financial Bancorp, Inc. - Schedule of Condensed Balance Sheets (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
ASSETS	'	'	'	'
Cash and cash equivalents	$47,241	$30,679	$61,518	$83,069
Other assets	25,427	20,391	'	'
TOTAL ASSETS	2,481,843	2,402,303	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'	'	'
Subordinated debentures	5,959	9,630	'	'
Other liabilities	13,419	15,085	'	'
Stockholders' equity	302,779	307,189	227,361	222,576
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	2,481,843	2,402,303	'	'
United Financial Bancorp, Inc. [Member]	'	'	'	'
ASSETS	'	'	'	'
Cash and cash equivalents	15,689	16,642	5,184	18,421
Investment in Bank	293,825	300,887	'	'
Other assets	5,720	4,385	'	'
TOTAL ASSETS	315,234	321,914	'	'
LIABILITIES AND STOCKHOLDERS' EQUITY	'	'	'	'
Subordinated debentures	5,959	9,630	'	'
Other liabilities	6,496	5,095	'	'
Stockholders' equity	302,779	307,189	'	'
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$315,234	$321,914	'	'

Condensed_Financial_Statements3

Condensed Financial Statements of United Financial Bancorp, Inc. - Schedule of Condensed Statements of Income (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income:	'	'	'	'	'	'	'	'	'	'	'
Impairment charges on securities	'	'	'	'	'	($37)	'	'	'	($202)	($99)
Total interest and dividend income	23,131	23,226	23,549	24,387	20,131	17,070	16,999	16,971	94,293	71,171	71,074
Expense:	'	'	'	'	'	'	'	'	'	'	'
Professional services	'	'	'	'	'	'	'	'	2,567	1,886	2,174
Merger related expenses	'	'	'	'	'	'	'	'	879	4,952	'
Income (loss) before provision for income taxes	5,459	6,361	5,553	6,491	-3,790	3,819	3,646	3,748	23,864	7,423	14,862
Income tax benefit	1,454	1,714	1,504	1,790	942	890	1,064	899	6,462	3,795	3,678
Net income	4,005	4,647	4,049	4,701	-4,732	2,929	2,582	2,849	17,402	3,628	11,184
United Financial Bancorp, Inc. [Member]	'	'	'	'	'	'	'	'	'	'	'
Income:	'	'	'	'	'	'	'	'	'	'	'
Investment interest	'	'	'	'	'	'	'	'	48	82	111
ESOP loan interest	'	'	'	'	'	'	'	'	'	360	379
Gain on sale of other assets	'	'	'	'	'	'	'	'	204	'	'
Impairment charges on securities	'	'	'	'	'	'	'	'	'	-37	-99
Other income	'	'	'	'	'	'	'	'	'	22	'
Total interest and dividend income	'	'	'	'	'	'	'	'	252	427	391
Expense:	'	'	'	'	'	'	'	'	'	'	'
Subordinated debentures interest	'	'	'	'	'	'	'	'	276	276	255
Professional services	'	'	'	'	'	'	'	'	1,369	1,293	1,295
Merger related expenses	'	'	'	'	'	'	'	'	612	1,881	'
Other expenses	'	'	'	'	'	'	'	'	169	24	102
Total expense	'	'	'	'	'	'	'	'	2,426	3,474	1,652
Income (loss) before provision for income taxes	'	'	'	'	'	'	'	'	-2,174	-3,047	-1,261
Income tax benefit	'	'	'	'	'	'	'	'	-308	-498	-510
Loss before equity in undistributed earnings of the Bank	'	'	'	'	'	'	'	'	-1,866	-2,549	-751
Equity in undistributed earnings of the Bank	'	'	'	'	'	'	'	'	19,268	6,177	11,935
Net income	'	'	'	'	'	'	'	'	$17,402	$3,628	$11,184

Condensed_Financial_Statements4

Condensed Financial Statements of United Financial Bancorp, Inc. - Schedule of Condensed Statements of Cash Flows (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income	$17,402	$3,628	$11,184
Adjustments to reconcile net income to net cash (used in) provided by operating activities:	'	'	'
Impairment charges on securities	'	202	99
Decrease in accrued interest receivable	402	-35	59
(Increase) decrease in other assets	-6,935	-1,138	1,371
Net cash provided by (used in) operating activities	29,337	17,624	17,278
Cash flows from investing activities:	'	'	'
Net cash from acquisition of NEBS	'	68,908	'
Net cash used in investing activities	-81,774	-67,890	-63,875
Cash flows from financing activities:	'	'	'
Treasury stock purchases	-7,550	-5,660	-6,780
Reissuance of treasury shares in connection with restricted stock warrants	'	'	426
Cash paid for in the money stock options exercised	'	'	-2
Cash dividends paid	-8,496	-5,521	-5,067
Net cash provided by (used in) financing activities	68,999	19,427	25,046
(Decrease) increase in cash and cash equivalents	16,562	-30,839	-21,551
Cash and cash equivalents at beginning of year	30,679	61,518	83,069
Cash and cash equivalents at end of year	47,241	30,679	61,518
Cash paid during the period:	'	'	'
Income taxes - net	2,532	2,460	5,073
Non-cash item:	'	'	'
Transfer of treasury shares to pay-off ESOP loan	'	12,410	'
United Financial Bancorp, Inc. [Member]	'	'	'
Cash flows from operating activities:	'	'	'
Net income	17,402	3,628	11,184
Adjustments to reconcile net income to net cash (used in) provided by operating activities:	'	'	'
Equity in undistributed earnings of the bank	-19,268	-6,177	-11,935
Impairment charges on securities	'	37	99
Decrease in accrued interest receivable	1	'	1
(Increase) decrease in other assets	-1,302	1,786	-1,820
Increase (decrease) in intercompany payables and other liabilities	1,401	4,886	-57
Net cash provided by (used in) operating activities	-1,766	4,160	-2,528
Cash flows from investing activities:	'	'	'
Net cash from acquisition of NEBS	'	118	'
Capital contributions to venture capital fund	-34	-131	-100
Principal payments on ESOP loans	'	624	605
Net cash used in investing activities	-34	611	505
Cash flows from financing activities:	'	'	'
Return of capital from United Bank	17,212	17,844	84
Tax benefit from MRP vesting	73	29	91
Tax withheld on options exercised	-685	-102	-55
Treasury stock purchases	-7,550	-5,660	-6,780
Reissuance of treasury shares in connection with restricted stock warrants	'	'	426
Reissuance of treasury shares in connection with stock options exercised	293	97	89
Cash paid for in the money stock options exercised	'	'	-2
Cash dividends paid	-8,496	-5,521	-5,067
Net cash provided by (used in) financing activities	847	6,687	-11,214
(Decrease) increase in cash and cash equivalents	-953	11,458	-13,237
Cash and cash equivalents at beginning of year	16,642	5,184	18,421
Cash and cash equivalents at end of year	15,689	16,642	5,184
Cash paid during the period:	'	'	'
Income taxes - net	5,500	5,775	4,850
Non-cash item:	'	'	'
Transfer of treasury shares to pay-off ESOP loan	'	$10,447	'

Quarterly_Results_of_Operation2

Quarterly Results of Operations - Summary of Quarterly Results of Operations (Detail) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Interest income	$23,131	$23,226	$23,549	$24,387	$20,131	$17,070	$16,999	$16,971	$94,293	$71,171	$71,074
Interest expense	3,779	3,880	3,850	3,894	3,896	3,520	3,705	3,871	15,403	14,992	18,261
Net interest income	19,352	19,346	19,699	20,493	16,235	13,550	13,294	13,100	78,890	56,179	52,813
Provision for loan losses	1,125	1,125	892	950	689	1,050	750	650	4,092	3,139	3,242
Non-interest income	3,239	2,976	3,015	2,798	2,969	2,511	2,570	2,573	12,028	10,623	9,353
Non-interest expense	16,007	14,836	16,269	15,850	22,305	11,192	11,468	11,275	62,962	56,240	44,062
Income (loss) before provision for income taxes	5,459	6,361	5,553	6,491	-3,790	3,819	3,646	3,748	23,864	7,423	14,862
Income tax expense	1,454	1,714	1,504	1,790	942	890	1,064	899	6,462	3,795	3,678
Net income (loss)	$4,005	$4,647	$4,049	$4,701	($4,732)	$2,929	$2,582	$2,849	$17,402	$3,628	$11,184
Basic earnings per share	$0.20	$0.24	$0.21	$0.23	($0.28)	$0.20	$0.18	$0.19	$0.88	$0.24	$0.75
Diluted earnings per share	$0.20	$0.23	$0.20	$0.23	($0.28)	$0.20	$0.17	$0.19	$0.87	$0.24	$0.74
Dividends paid per share	$0.11	$0.11	$0.11	$0.10	$0.10	$0.10	$0.09	$0.09	$0.43	$0.38	$0.34

Quarterly_Results_of_Operation3

Quarterly Results of Operations - Summary of Quarterly Results of Operations (Parenthetical) (Detail) (USD $)	3 Months Ended						12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'
Merger-related expenses	$598	$123	$158	$3,944	$366	$592	'	$284	'
Branch closing costs	'	477	510	'	'	'	'	'	'
ESOP plan termination expense	'	'	'	4,482	'	'	'	4,482	'
FHLBB prepayment penalties	'	'	'	$207	'	'	'	'	'