Randolph Bancorp (RNDB) 10-Q 10 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 08, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Trading Symbol	RNDB
Entity Registrant Name	Randolph Bancorp, Inc.
Entity Central Index Key	1,667,161
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		5,868,726

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 3,592	$ 2,721
Interest-bearing deposits	69,262	1,925
Total cash and cash equivalents	72,854	4,646
Certificates of deposit	4,675	4,675
Securities available for sale, at fair value	55,253	62,267
Loans held for sale	4,822	2,870
Loans, net of allowance for loan losses of $3,259 and $3,239, respectively	295,599	285,151
Federal Home Loan Bank stock, at cost	1,943	2,728
Accrued interest receivable	1,036	1,065
Mortgage servicing rights	2,768	2,567
Premises and equipment, net	3,155	2,891
Bank-owned life insurance	7,935	9,620
Foreclosed real estate	350	500
Other assets	5,817	4,183
Total assets	456,207	383,163
Deposits:
Non-interest bearing	49,616	37,968
Interest bearing	274,526	271,227
Stock subscriptions	67,442
Total deposits	391,584	309,195
Federal Home Loan Bank advances	24,068	34,914
Mortgagors' escrow accounts	1,311	1,445
Post-employment benefit obligations	2,883	3,294
Other liabilities	2,190	1,856
Total liabilities	422,036	350,704
Equity:
Retained earnings	32,917	32,198
Accumulated other comprehensive income, net of tax	1,254	261
Total equity	34,171	32,459
Total liabilities and equity	$ 456,207	$ 383,163

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Loans, allowance for loan losses	$ 3,259	$ 3,239

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest and dividend income:
Loans	$ 2,830	$ 2,560	$ 5,548	$ 5,012
Securities-taxable	307	392	626	789
Securities-tax exempt	91	104	187	211
Interest-bearing deposits and certificates of deposit	32	16	54	31
Total interest and dividend income	3,260	3,072	6,415	6,043
Interest expense:
Deposits	331	297	645	587
Federal Home Loan Bank advances	57	31	118	57
Total interest expense	388	328	763	644
Net interest income	2,872	2,744	5,652	5,399
Provision for loan losses		125	62	125
Net interest income after provision for loan losses	2,872	2,619	5,590	5,274
Non-interest income:
Customer service fees	396	404	753	770
Net gain on sales of mortgage loans	1,058	608	1,739	1,190
Mortgage servicing	69	55	169	96
Gain (loss) on sales of securities, net			62	(7)
Increase in cash surrender value of life insurance	48	60	104	121
Gain on life insurance settlement	486		486
Other	29	7	75	9
Total non-interest income	2,086	1,134	3,388	2,179
Non-interest expenses:
Salaries and employee benefits	2,381	2,223	4,583	4,425
Occupancy and equipment	363	407	757	932
Data processing	131	257	386	496
Professional fees	338	301	740	512
Marketing	103	87	172	174
Foreclosed real estate, net	154	104	157	121
FDIC insurance	56	77	139	145
Other	714	666	1,321	1,304
Total non-interest expenses	4,240	4,122	8,255	8,109
Income (loss) before income taxes	718	(369)	723	(656)
Income tax expense (benefit)		(1)	3	(4)
Net income (loss)	$ 718	$ (368)	$ 720	$ (652)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income (loss)	$ 718	$ (368)	$ 720	$ (652)
Securities available for sale:
Unrealized holding gains (losses)	229	102	1,049	(187)
Reclassification adjustment for net (gains) losses realized in income			(62)	7
Net unrealized gains (losses)	229	102	987	(180)
Related tax effects	0	0	0	0
Net-of-tax amount	229	102	987	(180)
Post-retirement benefit plans:
Post-retirement benefit plans	2	29	5	130
Related tax effects		(17)		(46)
Net-of-tax amount	2	12	5	84
Other comprehensive income, Net of Tax	231	114	992	(96)
Comprehensive income (loss)	949	(254)	1,712	(748)
Defined Benefit Pension Plan [Member]
Post-retirement benefit plans:
Reclassification adjustment for actuarial losses recognized		17		103
Supplemental Retirement Plan [Member]
Post-retirement benefit plans:
Actuarial losses	9	5	18	11
Prior service (credits) costs recognized	(7)	7	(13)	16
Post-retirement benefit plans	$ 2	$ 12	$ 5	$ 27

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning balance at Dec. 31, 2014	$ 33,656	$ 32,952	$ 704
Net income (loss)	(652)	(652)
Other comprehensive income (loss)	(96)		(96)
Ending balance at Jun. 30, 2015	32,908	32,300	608
Beginning balance at Dec. 31, 2014	33,656	32,952	704
Ending balance at Dec. 31, 2015	32,459	32,198	261
Net income (loss)	720	720
Other comprehensive income (loss)	992		992
Ending balance at Jun. 30, 2016	$ 34,171	$ 32,918	$ 1,253

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ 720	$ (652)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Provision for loan losses	62	125
Loans originated for sale	(60,888)	(53,778)
Principal balance of loans sold	58,936	49,798
Net amortization of securities	113	86
Net change in deferred loan costs and fees	59	(122)
Net (gain) loss on sales/calls of securities	(62)	7
Depreciation and amortization	238	361
Impairment write-down on foreclosed real estate	150	100
Gain on life insurance settlement	(486)
Increase in cash surrender value of life insurance	(104)	(121)
Net increase in mortgage servicing rights	(319)	(50)
Other, net	(61)	(207)
Net cash used in operating activities	(1,642)	(4,453)
Cash flows from investing activities:
Purchases of certificates of deposit		(735)
Securities available for sale:
Sales		318
Calls/maturities	7,033	300
Purchases	(2,000)	(549)
Principal payments on mortgage-backed securities	2,917	3,593
Loan originations, net of principal repayments	(9,711)	(24,091)
Loans purchased	(859)	(543)
Redemption (purchases) of Federal Home Loan Bank stock	785	(542)
Proceeds from sale of building	1,231
Purchases of premises and equipment	(502)	(332)
Net cash used in investing activities	(1,106)	(22,581)
Cash flows from financing activities:
Net increase in deposits	14,947	12,177
Proceeds from Federal Home Loan Bank advances	4,863	29,730
Repayments of Federal Home Loan Bank advances	(15,709)	(15,360)
Net decrease in mortgagors' escrow accounts	(135)	(15)
Stock subscriptions received	67,442
Deferred stock offering costs	(452)	(95)
Net cash provided by financing activities	70,956	26,437
Net change in cash and cash equivalents	68,208	(597)
Cash and cash equivalents at beginning of period	4,646	5,203
Cash and cash equivalents at end of period	72,854	4,606
Supplemental cash flow information:
Interest paid on deposits and borrowed funds	763	638
Income taxes paid	$ 7	$ 6

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	NOTE 1 – BASIS OF PRESENTATION Overview Randolph Bancorp, a Massachusetts-chartered mutual holding company (“Bancorp”) and the parent company of Randolph Savings Bank (the “Bank”) adopted a plan of conversion (the “Plan of Conversion”) in January 2016 which was subsequently approved by Bancorp’s Corporators in May 2016. Under the Plan of Conversion, Bancorp would convert from a mutual to a stock holding company in a series of transactions in which Randolph Bancorp, Inc. (the “Company”), a recently formed subsidiary of Bancorp, would be the surviving entity. On July 1, 2016, the mutual-to-stock transaction was completed and the Company sold 5,686,750 shares of its common stock, representing the adjusted maximum of the offering range, at $10.00 per share, for gross proceeds of $56,867,500, including the sale of 469,498 shares to the Bank’s newly formed employee stock ownership plan (“ESOP”). The ESOP’s shares were funded by a loan from the Company to be repaid over 25 years with interest at the prime rate. Included in deposits at June 30, 2016 are stock subscriptions of $67,442,000. As the Company’s stock offering was oversubscribed, $16,494,000 of these subscriptions were refunded on July 1, 2016. The direct costs of the Company’s stock offering are being deferred and were deducted from the proceeds of the offering. At June 30, 2016, deferred costs of $862,000 were included in other assets in the accompanying consolidated balance sheet. The total stock offering costs to be deducted from the proceeds of the offering are approximately $2,300,000. In connection with the Plan of Conversion, the Company established The Randolph Savings Charitable Foundation, Inc. (the “Foundation”). The Foundation was funded with 181,976 shares of the Company’s stock and $455,000 in cash. In July 2016, the Company recognized expense of $2,274,700 for this contribution. Since the Company is currently in a net operating loss (“NOL”) carryforward position and has set-up a full valuation allowance for its deferred tax assets, no tax benefit was recognized. The Company and the Bank are required to restrict their net worth by establishing liquidation accounts (collectively, the “liquidation account”) for the benefit of eligible account holders who continue to maintain deposit accounts at the Bank after the conversion. The liquidation account will be reduced annually to the extent eligible depositors reduce their qualifying deposits and cannot be increased thereafter with additional deposits. In the event of a complete liquidation of the Bank, and only in such event, each eligible account holder would be entitled to receive a distribution from the liquidation account in an amount proportionate to the adjusted qualifying account balances then held. Neither the Company nor the Bank may declare or pay a cash dividend on its common stock if such dividend would cause its regulatory capital to be reduced below the amount required to maintain the liquidation account. Bancorp entered into a merger agreement in September 2015 under which it would acquire First Eastern Bankshares Corporation (“Bankshares”) and its wholly-owned subsidiary First Federal Savings Bank of Boston (“First Federal”) (collectively “First Eastern”) in a transaction to be accounted for as a business combination. First Eastern is actively engaged in the mortgage banking business as an originator, seller and servicer of residential mortgage loans. On July 1, 2016 the Company completed the acquisition of First Eastern. See Note 8 for additional information. Basis of Financial Statement Presentation As of June 30, 2016 the conversion had not been completed and, as of that date, the Company had no assets or liabilities and had not conducted any business other than that of an organizational nature. As a result, the accompanying unaudited interim consolidated financial statements include the accounts of Bancorp and its consolidated subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation. These financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) for interim financial reporting and with the instructions to Form 10-Q and Article 10 of Regulation S-X issued by the Securities and Exchange Commission (“SEC”). Accordingly, the accompanying interim financial statements do not include all information required under GAAP for complete financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation of the financial statements, primarily consisting of normal recurring adjustments, have been included. The operating results for the three and six months ended June 30, 2016 are not necessarily indicative of the results to be expected for the year ending December 31, 2016 or any other interim period. For further information, refer to the consolidated financial statements and notes thereto included in the prospectus of Randolph Bancorp, Inc. dated May 13, 2016, as filed with the SEC.

Comprehensive Income

Comprehensive Income	6 Months Ended
	Jun. 30, 2016
Equity [Abstract]
Comprehensive Income	NOTE 2 – COMPREHENSIVE INCOME Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income (loss). Although certain changes in assets and liabilities are reported as a separate component of equity, such items, along with net income (loss), are components of comprehensive income (loss). The components of accumulated other comprehensive income, included in total equity, are as follows: June 30, December 31, 2016 2015 (In thousands) Securities available for sale: Net unrealized gain $ 1,872 $ 886 Tax effect (423 ) (423 ) Net-of-tax amount 1,449 463 Supplemental retirement plan Unrecognized net actuarial loss (725 ) (743 ) Unrecognized net prior service credit 587 598 (138 ) (145 ) Tax effect (57 ) (57 ) Net-of-tax amount (195 ) (202 ) Accumulated other comprehensive income $ 1,254 $ 261

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	NOTE 3 – RECENT ACCOUNTING PRONOUNCEMENTS In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses

Securities Available for Sale

Securities Available for Sale	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Securities Available for Sale	NOTE 4 – SECURITIES AVAILABLE FOR SALE The amortized cost and fair value of securities available for sale, including gross unrealized gains and losses, are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) June 30, 2016 Debt securities: U.S. Government-sponsored enterprises $ 3,999 $ 158 $ — $ 4,157 Corporate 3,064 102 (6 ) 3,160 Municipal 13,884 628 (1 ) 14,511 Residential mortgage-backed securities: U.S. Government-sponsored enterprises 18,414 674 (4 ) 19,084 U.S. Government-guaranteed 6,619 208 — 6,827 Commercial mortgage-backed securities: U.S. Government-guaranteed 6,856 106 — 6,962 Total debt securities 52,836 1,876 (11 ) 54,701 Mutual fund 545 7 — 552 Total securities available for sale $ 53,381 $ 1,883 $ (11 ) $ 55,253 December 31, 2015 Debt securities: U.S. Government-sponsored enterprises $ 6,886 $ 159 $ (12 ) $ 7,033 Corporate 4,250 78 (48 ) 4,280 Municipal 15,327 472 (24 ) 15,775 Residential mortgage-backed securities: U.S. Government-sponsored enterprises 19,742 406 (120 ) 20,028 U.S. Government-guaranteed 7,276 50 — 7,326 Commercial mortgage-backed securities: U.S. Government-guaranteed 7,355 33 (108 ) 7,280 Total debt securities 60,836 1,198 (312 ) 61,722 Mutual fund 545 — — 545 Total securities available for sale $ 61,381 $ 1,198 $ (312 ) $ 62,267 The amortized cost and fair value of debt securities by contractual maturity at June 30, 2016 are presented below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Fair Cost Value (In thousands) Within 1 year $ — $ — After 1 year through 5 years 13,261 13,706 After 5 years through 10 years 7,686 8,122 20,947 21,828 Mortgage-backed securities 31,889 32,873 $ 52,836 $ 54,701 Information pertaining to securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows: Less Than Twelve Months Over Twelve Months Gross Gross Unrealized Fair Unrealized Fair Losses Value Losses Value (In thousands) June 30, 2016 Debt securities: Corporate $ — $ — $ (6 ) $ 1,009 Municipal — — (1 ) 487 Residential mortgage-backed securities: U.S. Government-sponsored — — (4 ) 2,774 Commercial mortgage-backed securities: U.S. Government-guaranteed — — — — Total debt securities $ — $ — $ (11 ) $ 4,270 December 31, 2015 Debt securities: U.S. Government-sponsored enterprises $ — $ — $ (12 ) $ 1,989 Corporate — — (48 ) 2,088 Municipal — — (24 ) 2,185 Residential mortgage-backed securities: U.S. Government-sponsored — — (120 ) 5,994 Commercial mortgage-backed securities: U.S. Government-guaranteed — — (108 ) 5,062 Total debt securities $ — $ — $ (312 ) $ 17,318 Management evaluates securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. At June 30, 2016, 14 debt securities had unrealized losses with aggregate depreciation of less than 1% from the Company’s amortized cost basis. The Company currently does not believe it is probable that it will be unable to collect all amounts due according to the contractual terms of these investments. Therefore, it is expected that the bonds would not be settled at a price less than the par value of the investment. Because the Company does not intend to sell any debt securities and it is more likely than not that the Company will not be required to sell any debt securities before recovery of its amortized cost basis, it does not consider these investments to be other-than-temporarily impaired at June 30, 2016. When possible, management actively monitors the credit rating of the underlying issuer of the debt security. As of June 30, 2016 management did not identify any securities for which the credit rating had deteriorated since purchase.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2016
Receivables [Abstract]
Loans and Allowance for Loan Losses	NOTE 5 – LOANS AND ALLOWANCE FOR LOAN LOSSES A summary of the loan portfolio is as follows: June 30, December 31, 2016 2015 (In thousands) Mortgage loans on real estate: Residential: One-to-four family $ 168,128 $ 166,483 Home equity loans and lines of credit 35,338 33,259 Commercial 81,719 74,911 Construction 7,270 7,807 292,455 282,460 Commercial and industrial 1,996 2,040 Consumer 3,178 2,602 Total loans 297,629 287,102 Allowance for loan losses (3,259 ) (3,239 ) Net deferred loan costs and fees, and purchase premiums 1,229 1,288 $ 295,599 $ 285,151 The following table summarizes the changes in the allowance for loan losses by portfolio segment for the three and six months ended June 30, 2016 and 2015: Second Residential Mortgages Commercial Commercial 1-4 Family and HELOC Real Estate Construction and Industrial Consumer Total (In thousands) Three Months Ended June 30, 2016 Allowance at March 31, 2016 $ 1,054 $ 431 $ 1,559 $ 121 $ 36 $ 84 $ 3,285 Provision for loan losses (9 ) 13 (39 ) 14 — 21 — Loans charged-off — — — — — (34 ) (34 ) Recoveries 1 — — — — 7 8 Balance at June 30, 2016 $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Three Months Ended June 30, 2015 Allowance at March 31, 2015 $ 1,368 $ 488 $ 1,539 $ 60 $ 51 $ 31 $ 3,537 Provision for loan losses (55 ) 54 41 68 (8 ) 25 125 Loans charged-off — — — — — (12 ) (12 ) Recoveries 1 — — — 1 1 3 Balance at June 30, 2015 $ 1,314 $ 542 $ 1,580 $ 128 $ 44 $ 45 $ 3,653 Six Months Ended June 30, 2016 Allowance at December 31, 2015 $ 1,076 $ 512 $ 1,402 $ 159 $ 37 $ 53 $ 3,239 Provision for loan losses (32 ) (68 ) 118 (24 ) (1 ) 69 62 Loans charged-off — — — — — (60 ) (60 ) Recoveries 2 — — — — 16 18 Balance at June 30, 2016 $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Six Months Ended June 30, 2015 Allowance at December 31, 2014 $ 1,368 $ 488 $ 1,539 $ 60 $ 51 $ 38 $ 3,544 Provision for loan losses (55 ) 54 41 68 (8 ) 25 125 Loans charged-off — — — — — (29 ) (29 ) Recoveries 1 — — — 1 11 13 Balance at June 30, 2015 $ 1,314 $ 542 $ 1,580 $ 128 $ 44 $ 45 $ 3,653 Additional information pertaining to the allowance for loan losses at June 30, 2016 and December 31, 2015 is as follows: Second Residential Mortgages Commercial Commercial 1-4 Family and HELOC Real Estate Construction and Industrial Consumer Total (In thousands) June 30, 2016 Allowance for impaired loans $ 223 $ 2 $ 19 $ — $ — $ — $ 244 Allowance for non-impaired loans 823 442 1,501 135 36 78 3,015 Total allowance for loan losses $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Impaired loans $ 4,564 $ 277 $ 1,221 $ — $ — $ — $ 6,062 Non-impaired loans 163,564 35,061 80,498 7,270 1,996 3,178 291,567 Total loans $ 168,128 $ 35,338 $ 81,719 $ 7,270 $ 1,996 $ 3,178 $ 297,629 December 31, 2015 Allowance for impaired loans $ 254 $ 2 $ 28 $ — $ — $ — $ 284 Allowance for non-impaired loans 822 510 1,374 159 37 53 2,955 Total allowance for loan losses $ 1,076 $ 512 $ 1,402 $ 159 $ 37 $ 53 $ 3,239 Impaired loans $ 4,961 $ 277 $ 1,449 $ — $ 16 $ — $ 6,703 Non-impaired loans 161,522 32,982 73,462 7,807 2,024 2,602 280,399 Total loans $ 166,483 $ 33,259 $ 74,911 $ 7,807 $ 2,040 $ 2,602 $ 287,102 The following is a summary of past due and non-accrual loans at June 30, 2016 and December 31, 2015: 30 - 59 60 - 89 90 Days or Total Past Non- (In thousands) June 30, 2016 Residential one-to-four family $ 392 $ — $ — $ 392 $ 1,715 Home equity loans and lines of credit — — — — 277 Commercial real estate — — — — — Construction — — — — — Commercial and industrial — — — — — Consumer — — — — — Total $ 392 $ — $ — $ 392 $ 1,992 December 31, 2015 Residential one-to-four family $ 403 $ 133 $ 46 $ 582 $ 2,022 Home equity loans and lines of credit — 247 — 247 30 Commercial real estate — — — — — Construction — — — — — Commercial and industrial — — — — 16 Consumer — — — — — Total $ 403 $ 380 $ 46 $ 829 $ 2,068 At June 30, 2016 and December 31, 2015, there were no loans past due 90 days or more and still accruing interest. The following is a summary of impaired loans at June 30, 2016 and December 31, 2015: Recorded Unpaid Related (In thousands) June 30, 2016 Impaired loans without a valuation allowance: Residential one-to-four family $ 949 $ 949 $ — Home equity loans and lines of credit 247 247 — Commercial real estate 276 276 — Total 1,472 1,472 — Impaired loans with a valuation allowance: Residential one-to-four family 3,615 3,615 223 Home equity loans and lines of credit 30 30 2 Commercial real estate 945 945 19 Total 4,590 4,590 244 Total impaired loans $ 6,062 $ 6,062 $ 244 December 31, 2015 Impaired loans without a valuation allowance: Residential one-to-four family $ 874 $ 874 $ — Home equity loans and lines of credit 247 247 — Commercial real estate 422 422 — Commercial and industrial 16 16 — Total 1,559 1,559 — Impaired loans with a valuation allowance: Residential one-to-four family 4,088 4,088 254 Home equity loans and lines of credit 30 30 2 Commercial real estate 1,026 1,026 28 Total 5,144 5,144 284 Total impaired loans $ 6,703 $ 6,703 $ 284 Additional information pertaining to impaired loans follows: Average Interest Cash Basis Recorded Income Interest Investment Recognized Recognized (In thousands) Six Months Ended June 30, 2016 Residential one-to-four family $ 4,942 $ 89 $ 29 Home equity loans and lines of credit 241 1 1 Commercial real estate 1,304 33 — Commercial and industrial 12 — — Total $ 6,499 $ 123 $ 30 Six Months Ended June 30, 2015 Residential one-to-four family $ 6,469 $ 110 $ 33 Home equity loans and lines of credit 36 1 — Commercial real estate 7,115 183 7 Commercial and industrial 17 — — Total $ 13,637 $ 294 $ 40 Three Months Ended June 30, 2016 Residential one-to-four family $ 4,783 $ 48 $ 16 Home equity loans and lines of credit 288 1 1 Commercial real estate 1,236 17 — Total $ 6,307 $ 66 $ 17 Three Months Ended June 30, 2015 Residential one-to-four family $ 6,441 $ 52 $ 16 Home equity loans and lines of credit 18 — — Commercial real estate 6,578 93 2 Commercial and industrial 17 — — Total $ 13,054 $ 145 $ 18 No additional funds are committed to be advanced in connection with impaired loans. Troubled Debt Restructurings The Company periodically grants concessions to borrowers experiencing financial difficulties. At June 30, 2016, the Company had 18 residential real estate loans and 5 commercial real estate loans aggregating $4,548,000 and $1,010,000, respectively, which were subject to troubled debt restructuring agreements. At June 30, 2015, the Company had 28 residential real estate loans and 7 commercial real estate loans aggregating $6,373,000 and $4,081,000, respectively, which were subject to troubled debt restructuring agreements. As of June 30, 2016 and 2015, $3,859,000 and $8,138,000, respectively, in troubled debt restructurings were performing in accordance with the terms of the modified loan agreements. The Company’s troubled debt restructurings consist primarily of interest rate concessions for periods of three months to thirty years for residential real estate loans, and for periods up to one year for commercial real estate loans. For the six months ended June 30, 2016 the Company had no modifications of loans meeting the criteria of a troubled debt restructuring. For the six months ended June 30, 2015 the Company modified 2 loans meeting the criteria of a troubled debt restructuring having a loan balance of $434,000 with rate reductions ranging from 1% to 3%. Management performs a discounted cash flow calculation to determine the amount of impairment reserve required on each of the troubled debt restructurings. Any reserve required is recorded as part of the allowance for loan losses. During the three and six months ended June 30, 2016 and 2015, there were no material changes to the allowance for loan losses as a result of loan modifications made which were considered a troubled debt restructuring. During the three and six months ended June 30, 2016 and 2015, there were no troubled debt restructurings that defaulted (over 30 days past due) within twelve months of the restructure date. Credit Quality Information The Company utilizes an eight-grade internal loan rating system for commercial real estate, construction and commercial loans, as follows: Loans rated 1 – 3A are considered “pass” rated loans with low to average risk. Loans rated 4 are considered “special mention.” These loans are starting to show signs of potential weakness and are being closely monitored by management. Loans rated 5 are considered “substandard” and are inadequately protected by the current net worth and paying capacity of the obligors and/or the collateral pledged. There is a distinct possibility that the Company will sustain some loss if the weakness is not corrected. Loans rated 6 are considered “doubtful” and have all the weaknesses inherent in those classified substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, highly questionable and improbable. Loans rated 7 are considered uncollectible (“loss”) and of such little value that their continuance as loans is not warranted. On an annual basis, or more often if needed, the Company formally reviews the ratings on all commercial real estate, construction and commercial and industrial loans. 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 loans by risk rating: June 30, 2016 December 31, 2015 Commercial Construction Commercial Commercial Construction Commercial (In thousands) Loans rated 1 - 3A $ 80,706 $ 7,270 $ 1,946 $ 73,517 $ 7,807 $ 2,006 Loans rated 4 802 — 50 1,145 — — Loans rated 5 211 — — 249 — 34 $ 81,719 $ 7,270 $ 1,996 $ 74,911 $ 7,807 $ 2,040 Residential mortgages, including home equity loans and lines of credit, and consumer loans are monitored for credit quality based primarily on their payment status.

On-Balance Sheet Derivative Ins

On-Balance Sheet Derivative Instruments and Hedging Activities	6 Months Ended
	Jun. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
On-Balance Sheet Derivative Instruments and Hedging Activities	NOTE 6 – ON-BALANCE SHEET DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Loan Commitments Mortgage loan commitments qualify as derivative loan commitments if the loan that will result from exercise of the commitment will be held for sale upon funding. The Company enters into commitments to fund residential mortgage loans at specified rates and times in the future, with the intention that these loans will subsequently be sold in the secondary market. Outstanding derivative loan commitments expose the Company to the risk that the price of the loans arising from exercise of the loan commitment might decline from inception of the rate lock to funding of the loan due to an increase in mortgage interest rates. If interest rates increase, the value of these loan commitments decreases. Conversely, if interest rates decrease, the value of these loan commitments increases. The notional amount of derivative loan commitments was $23,717,000 and $5,292,000 at June 30, 2016 and December 31, 2015, respectively. The fair value of such commitments was an asset of $515,000 and $93,000 as of June 30, 2016 and December 31, 2015, respectively, and is included in other assets in the consolidated balance sheets. Forward Loan Sale Commitments The Company utilizes both “mandatory delivery” and “best efforts” forward loan sale commitments to mitigate the risk of potential decreases in the values of loans that would result from the exercise of the derivative loan commitments. With a “mandatory delivery” contract, the Company commits to deliver a certain principal amount of mortgage loans to an investor at a specified price on or before a specified date. If the Company fails to deliver the amount of mortgages necessary to fulfill the commitment by the specified date, it is obligated to pay a “pair-off” fee, based on then-current market prices, to the investor to compensate the investor for the shortfall. With a “best efforts” contract, the Company commits to deliver an individual mortgage loan of a specified principal amount and quality to an investor if the loan to the underlying borrower closes. Generally, the price the investor will pay the seller for an individual loan is specified prior to the loan being funded (e.g. on the same day the lender commits to lend funds to a potential borrower). The Company expects that these forward loan sale commitments will experience inverse changes in fair value to the change in fair value of derivative loan commitments. The notional amount of undesignated forward loan sale commitments was $25,745,000 and $7,371,000 at June 30, 2016 and December 31, 2015, respectively. The fair value of such commitments was an asset of $2,000 and $14,000 at June 30, 2016 and December 31, 2015, respectively, included in other assets in the consolidated balance sheets and a liability of $182,000 at June 30, 2016 included in other liabilities in the consolidated balance sheet.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	NOTE 7 – FAIR VALUE OF ASSETS AND LIABILITIES Determination of fair value The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various assets and liabilities. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the asset or liability. The following methods and assumptions were used by the Company in estimating fair value disclosures: Cash and cash equivalents Certificates of deposit Securities Federal Home Loan Bank (“FHLB”) stock Loans held for sale Determination of fair value (continued) Loans Mortgage servicing rights Deposit liabilities FHLBB advances Accrued interest On-balance-sheet derivatives Off-balance sheet credit-related instruments Assets and liabilities measured at fair value on a recurring basis Assets and liabilities measured at fair value on a recurring basis are summarized below. There were no liabilities measured at fair value on a recurring basis at December 31, 2015. Total Level 1 Level 2 Level 3 Fair Value (In thousands) June 30, 2016 Assets: Securities available for sale: Debt securities $ — $ 54,701 $ — $ 54,701 Mutual fund — 552 — 552 Derivative loan commitments — 515 — 515 Forward loan sale commitments — 2 — 2 Liabilities: Forward loan sale commitments 182 — 182 December 31, 2015 Assets: Securities available for sale: Debt securities $ — $ 61,722 $ — $ 61,722 Mutual fund — 545 — 545 Derivative loan commitments — 93 — 93 Forward loan sale commitments — 14 — 14 Assets measured at fair value on a non-recurring basis The Company may also be required, from time to time, to measure certain other assets at fair value on a non-recurring basis in accordance with U.S. generally accepted accounting principles. These adjustments to fair value usually result from application of lower-of-cost-or-market accounting or write-downs of individual assets. The following table summarizes the fair value hierarchy used to determine each adjustment and the carrying value of the related assets as of June 30, 2016 and December 31, 2015. June 30, 2016 Level 1 Level 2 Level 3 (In thousands) Loans held for sale $ — $ 4,822 $ — Collateral dependent impaired loans — — 900 Foreclosed real estate — — 350 Mortgage servicing rights — 2,768 — $ — $ 7,590 $ 1,250 December 31, 2015 Level 1 Level 2 Level 3 (In thousands) Loans held for sale $ — $ 2,870 $ — Collateral dependent impaired loans — — 552 Foreclosed real estate — — 500 Mortgage servicing rights — 2,567 — $ — $ 5,437 $ 1,052 The Company recorded a $150,000 valuation allowance for foreclosed real estate during the three months ended June 30, 2016 based on an updated appraisal. There were no liabilities measured at fair value on a non-recurring basis at June 30, 2016 and December 31, 2015. The following table shows the significant unobservable inputs used in the non-recurring fair value measurements of Level 3 assets. Foreclosed real estate and collateral dependent impaired loans are evaluated for non-recurring fair value adjustments as determined by third party appraisals without adjustment except as noted below. Valuation Unobservable Discount Measurements Fair Value Technique Inputs Applied (In thousands) June 30, 2016 Foreclosed real estate $ 350 Discounted appraisal Collateral discounts 0 % Collateral dependent impaired loans 900 Discounted appraisals Collateral discounts 0 % December 31, 2015 Foreclosed real estate $ 500 Discounted appraisal Collateral discounts 32 % Collateral dependent impaired loans 552 Discounted appraisals Collateral discounts 0 % The estimated fair values, and related carrying amounts, of the Company’s financial instruments are presented below. Certain financial instruments and all non-financial instruments are exempt from disclosure requirements. Accordingly, the aggregate fair value amounts presented herein do not represent the underlying fair value of the Company. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include mortgagors’ escrow accounts and accrued interest payable. June 30, 2016 Carrying Fair Amount Value Level 1 Level 2 Level 3 (In thousands) Financial assets: Certificates of deposit $ 4,675 $ 4,746 $ — $ 4,746 $ — Securities available for sale 55,253 55,253 — 55,253 — Loans held for sale 4,822 4,908 — 4,908 — Loans, net 295,599 297,897 — — 297,897 Derivative assets 517 517 — 517 — Financial liabilities: Deposits $ 391,584 $ 391,995 $ — $ 391,995 $ — FHLBB advances 24,068 24,066 — 24,066 — Derivative liabilities 182 182 — 182 — December 31, 2015 Carrying Fair Amount Value Level 1 Level 2 Level 3 (In thousands) Financial assets: Certificates of deposit $ 4,675 $ 4,711 $ — $ 4,711 $ — Securities available for sale 62,267 62,267 — 62,267 — Loans held for sale 2,870 2,931 — 2,931 — Loans, net 285,151 283,542 — — 283,542 Derivative assets 107 107 — 107 — Financial liabilities: Deposits $ 309,195 $ 309,076 $ — $ 309,076 $ — FHLBB advances 34,914 34,971 — 34,971 —

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	NOTE 8 – SUBSEQUENT EVENTS On July 1, 2016, the Company acquired First Eastern for $13,907,000 in cash. Upon completion of the merger, the Company added $26,209,000 in loans held for sale, $30,824,000 in portfolio loans, $4,396,000 in mortgage servicing rights and $41,737,000 in deposits. The Company has not yet finalized its determination of the fair values of acquired assets and liabilities assumed related to the First Eastern acquisition.

Recent Accounting Pronounceme16

Recent Accounting Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2016
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Pronouncements	In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses

Comprehensive Income (Tables)

Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2016
Equity [Abstract]
Components of Accumulated Other Comprehensive Income and Related Tax Effects	The components of accumulated other comprehensive income, included in total equity, are as follows: June 30, December 31, 2016 2015 (In thousands) Securities available for sale: Net unrealized gain $ 1,872 $ 886 Tax effect (423 ) (423 ) Net-of-tax amount 1,449 463 Supplemental retirement plan Unrecognized net actuarial loss (725 ) (743 ) Unrecognized net prior service credit 587 598 (138 ) (145 ) Tax effect (57 ) (57 ) Net-of-tax amount (195 ) (202 ) Accumulated other comprehensive income $ 1,254 $ 261

Securities Available for Sale (

Securities Available for Sale (Tables)	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Schedule of amortized cost and fair value of securities	The amortized cost and fair value of securities available for sale, including gross unrealized gains and losses, are as follows: Gross Gross Amortized Unrealized Unrealized Fair Cost Gains Losses Value (In thousands) June 30, 2016 Debt securities: U.S. Government-sponsored enterprises $ 3,999 $ 158 $ — $ 4,157 Corporate 3,064 102 (6 ) 3,160 Municipal 13,884 628 (1 ) 14,511 Residential mortgage-backed securities: U.S. Government-sponsored enterprises 18,414 674 (4 ) 19,084 U.S. Government-guaranteed 6,619 208 — 6,827 Commercial mortgage-backed securities: U.S. Government-guaranteed 6,856 106 — 6,962 Total debt securities 52,836 1,876 (11 ) 54,701 Mutual fund 545 7 — 552 Total securities available for sale $ 53,381 $ 1,883 $ (11 ) $ 55,253 December 31, 2015 Debt securities: U.S. Government-sponsored enterprises $ 6,886 $ 159 $ (12 ) $ 7,033 Corporate 4,250 78 (48 ) 4,280 Municipal 15,327 472 (24 ) 15,775 Residential mortgage-backed securities: U.S. Government-sponsored enterprises 19,742 406 (120 ) 20,028 U.S. Government-guaranteed 7,276 50 — 7,326 Commercial mortgage-backed securities: U.S. Government-guaranteed 7,355 33 (108 ) 7,280 Total debt securities 60,836 1,198 (312 ) 61,722 Mutual fund 545 — — 545 Total securities available for sale $ 61,381 $ 1,198 $ (312 ) $ 62,267
Investments Classified by Contractual Maturity Date	The amortized cost and fair value of debt securities by contractual maturity at June 30, 2016 are presented below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Fair Cost Value (In thousands) Within 1 year $ — $ — After 1 year through 5 years 13,261 13,706 After 5 years through 10 years 7,686 8,122 20,947 21,828 Mortgage-backed securities 31,889 32,873 $ 52,836 $ 54,701
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	Information pertaining to securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous loss position, follows: Less Than Twelve Months Over Twelve Months Gross Gross Unrealized Fair Unrealized Fair Losses Value Losses Value (In thousands) June 30, 2016 Debt securities: Corporate $ — $ — $ (6 ) $ 1,009 Municipal — — (1 ) 487 Residential mortgage-backed securities: U.S. Government-sponsored — — (4 ) 2,774 Commercial mortgage-backed securities: U.S. Government-guaranteed — — — — Total debt securities $ — $ — $ (11 ) $ 4,270 December 31, 2015 Debt securities: U.S. Government-sponsored enterprises $ — $ — $ (12 ) $ 1,989 Corporate — — (48 ) 2,088 Municipal — — (24 ) 2,185 Residential mortgage-backed securities: U.S. Government-sponsored — — (120 ) 5,994 Commercial mortgage-backed securities: U.S. Government-guaranteed — — (108 ) 5,062 Total debt securities $ — $ — $ (312 ) $ 17,318

Loans and Allowance for Loan 19

Loans and Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2016
Receivables [Abstract]
Summary of Loan Portfolio	A summary of the loan portfolio is as follows: June 30, December 31, 2016 2015 (In thousands) Mortgage loans on real estate: Residential: One-to-four family $ 168,128 $ 166,483 Home equity loans and lines of credit 35,338 33,259 Commercial 81,719 74,911 Construction 7,270 7,807 292,455 282,460 Commercial and industrial 1,996 2,040 Consumer 3,178 2,602 Total loans 297,629 287,102 Allowance for loan losses (3,259 ) (3,239 ) Net deferred loan costs and fees, and purchase premiums 1,229 1,288 $ 295,599 $ 285,151
Summary of Changes in the Allowance for Loan Losses by Portfolio Segment	The following table summarizes the changes in the allowance for loan losses by portfolio segment for the three and six months ended June 30, 2016 and 2015: Second Residential Mortgages Commercial Commercial 1-4 Family and HELOC Real Estate Construction and Industrial Consumer Total (In thousands) Three Months Ended June 30, 2016 Allowance at March 31, 2016 $ 1,054 $ 431 $ 1,559 $ 121 $ 36 $ 84 $ 3,285 Provision for loan losses (9 ) 13 (39 ) 14 — 21 — Loans charged-off — — — — — (34 ) (34 ) Recoveries 1 — — — — 7 8 Balance at June 30, 2016 $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Three Months Ended June 30, 2015 Allowance at March 31, 2015 $ 1,368 $ 488 $ 1,539 $ 60 $ 51 $ 31 $ 3,537 Provision for loan losses (55 ) 54 41 68 (8 ) 25 125 Loans charged-off — — — — — (12 ) (12 ) Recoveries 1 — — — 1 1 3 Balance at June 30, 2015 $ 1,314 $ 542 $ 1,580 $ 128 $ 44 $ 45 $ 3,653 Six Months Ended June 30, 2016 Allowance at December 31, 2015 $ 1,076 $ 512 $ 1,402 $ 159 $ 37 $ 53 $ 3,239 Provision for loan losses (32 ) (68 ) 118 (24 ) (1 ) 69 62 Loans charged-off — — — — — (60 ) (60 ) Recoveries 2 — — — — 16 18 Balance at June 30, 2016 $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Six Months Ended June 30, 2015 Allowance at December 31, 2014 $ 1,368 $ 488 $ 1,539 $ 60 $ 51 $ 38 $ 3,544 Provision for loan losses (55 ) 54 41 68 (8 ) 25 125 Loans charged-off — — — — — (29 ) (29 ) Recoveries 1 — — — 1 11 13 Balance at June 30, 2015 $ 1,314 $ 542 $ 1,580 $ 128 $ 44 $ 45 $ 3,653
Summary of Additional Information Pertaining to the Allowance for Loan Losses	Additional information pertaining to the allowance for loan losses at June 30, 2016 and December 31, 2015 is as follows: Second Residential Mortgages Commercial Commercial 1-4 Family and HELOC Real Estate Construction and Industrial Consumer Total (In thousands) June 30, 2016 Allowance for impaired loans $ 223 $ 2 $ 19 $ — $ — $ — $ 244 Allowance for non-impaired loans 823 442 1,501 135 36 78 3,015 Total allowance for loan losses $ 1,046 $ 444 $ 1,520 $ 135 $ 36 $ 78 $ 3,259 Impaired loans $ 4,564 $ 277 $ 1,221 $ — $ — $ — $ 6,062 Non-impaired loans 163,564 35,061 80,498 7,270 1,996 3,178 291,567 Total loans $ 168,128 $ 35,338 $ 81,719 $ 7,270 $ 1,996 $ 3,178 $ 297,629 December 31, 2015 Allowance for impaired loans $ 254 $ 2 $ 28 $ — $ — $ — $ 284 Allowance for non-impaired loans 822 510 1,374 159 37 53 2,955 Total allowance for loan losses $ 1,076 $ 512 $ 1,402 $ 159 $ 37 $ 53 $ 3,239 Impaired loans $ 4,961 $ 277 $ 1,449 $ — $ 16 $ — $ 6,703 Non-impaired loans 161,522 32,982 73,462 7,807 2,024 2,602 280,399 Total loans $ 166,483 $ 33,259 $ 74,911 $ 7,807 $ 2,040 $ 2,602 $ 287,102
Schedule of Past Due and Non-Accrual Loans	The following is a summary of past due and non-accrual loans at June 30, 2016 and December 31, 2015: 30 - 59 60 - 89 90 Days or Total Past Non- (In thousands) June 30, 2016 Residential one-to-four family $ 392 $ — $ — $ 392 $ 1,715 Home equity loans and lines of credit — — — — 277 Commercial real estate — — — — — Construction — — — — — Commercial and industrial — — — — — Consumer — — — — — Total $ 392 $ — $ — $ 392 $ 1,992 December 31, 2015 Residential one-to-four family $ 403 $ 133 $ 46 $ 582 $ 2,022 Home equity loans and lines of credit — 247 — 247 30 Commercial real estate — — — — — Construction — — — — — Commercial and industrial — — — — 16 Consumer — — — — — Total $ 403 $ 380 $ 46 $ 829 $ 2,068
Summary of Impaired Loans and Additional Information Pertaining to Impaired Loans	The following is a summary of impaired loans at June 30, 2016 and December 31, 2015: Recorded Unpaid Related (In thousands) June 30, 2016 Impaired loans without a valuation allowance: Residential one-to-four family $ 949 $ 949 $ — Home equity loans and lines of credit 247 247 — Commercial real estate 276 276 — Total 1,472 1,472 — Impaired loans with a valuation allowance: Residential one-to-four family 3,615 3,615 223 Home equity loans and lines of credit 30 30 2 Commercial real estate 945 945 19 Total 4,590 4,590 244 Total impaired loans $ 6,062 $ 6,062 $ 244 December 31, 2015 Impaired loans without a valuation allowance: Residential one-to-four family $ 874 $ 874 $ — Home equity loans and lines of credit 247 247 — Commercial real estate 422 422 — Commercial and industrial 16 16 — Total 1,559 1,559 — Impaired loans with a valuation allowance: Residential one-to-four family 4,088 4,088 254 Home equity loans and lines of credit 30 30 2 Commercial real estate 1,026 1,026 28 Total 5,144 5,144 284 Total impaired loans $ 6,703 $ 6,703 $ 284 Additional information pertaining to impaired loans follows: Average Interest Cash Basis Recorded Income Interest Investment Recognized Recognized (In thousands) Six Months Ended June 30, 2016 Residential one-to-four family $ 4,942 $ 89 $ 29 Home equity loans and lines of credit 241 1 1 Commercial real estate 1,304 33 — Commercial and industrial 12 — — Total $ 6,499 $ 123 $ 30 Six Months Ended June 30, 2015 Residential one-to-four family $ 6,469 $ 110 $ 33 Home equity loans and lines of credit 36 1 — Commercial real estate 7,115 183 7 Commercial and industrial 17 — — Total $ 13,637 $ 294 $ 40 Three Months Ended June 30, 2016 Residential one-to-four family $ 4,783 $ 48 $ 16 Home equity loans and lines of credit 288 1 1 Commercial real estate 1,236 17 — Total $ 6,307 $ 66 $ 17 Three Months Ended June 30, 2015 Residential one-to-four family $ 6,441 $ 52 $ 16 Home equity loans and lines of credit 18 — — Commercial real estate 6,578 93 2 Commercial and industrial 17 — — Total $ 13,054 $ 145 $ 18
Summary of Company's Loans by Risk Rating	The following table presents the Company’s loans by risk rating: June 30, 2016 December 31, 2015 Commercial Construction Commercial Commercial Construction Commercial (In thousands) Loans rated 1 - 3A $ 80,706 $ 7,270 $ 1,946 $ 73,517 $ 7,807 $ 2,006 Loans rated 4 802 — 50 1,145 — — Loans rated 5 211 — — 249 — 34 $ 81,719 $ 7,270 $ 1,996 $ 74,911 $ 7,807 $ 2,040

Fair Value of Assets and Liab20

Fair Value of Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2016
Fair Value Disclosures [Abstract]
Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis	Assets and liabilities measured at fair value on a recurring basis are summarized below. There were no liabilities measured at fair value on a recurring basis at December 31, 2015. Total Level 1 Level 2 Level 3 Fair Value (In thousands) June 30, 2016 Assets: Securities available for sale: Debt securities $ — $ 54,701 $ — $ 54,701 Mutual fund — 552 — 552 Derivative loan commitments — 515 — 515 Forward loan sale commitments — 2 — 2 Liabilities: Forward loan sale commitments 182 — 182 December 31, 2015 Assets: Securities available for sale: Debt securities $ — $ 61,722 $ — $ 61,722 Mutual fund — 545 — 545 Derivative loan commitments — 93 — 93 Forward loan sale commitments — 14 — 14
Schedule of Assets Measured at Fair Value on a Non-Recurring Basis	The following table summarizes the fair value hierarchy used to determine each adjustment and the carrying value of the related assets as of June 30, 2016 and December 31, 2015. June 30, 2016 Level 1 Level 2 Level 3 (In thousands) Loans held for sale $ — $ 4,822 $ — Collateral dependent impaired loans — — 900 Foreclosed real estate — — 350 Mortgage servicing rights — 2,768 — $ — $ 7,590 $ 1,250 December 31, 2015 Level 1 Level 2 Level 3 (In thousands) Loans held for sale $ — $ 2,870 $ — Collateral dependent impaired loans — — 552 Foreclosed real estate — — 500 Mortgage servicing rights — 2,567 — $ — $ 5,437 $ 1,052
Schedule of Significant Unobservable Inputs Used in Fair Value Measurements of Level 3 Assets and Liabilities	The following table shows the significant unobservable inputs used in the non-recurring fair value measurements of Level 3 assets: Valuation Unobservable Discount Measurements Fair Value Technique Inputs Applied (In thousands) June 30, 2016 Foreclosed real estate $ 350 Discounted appraisal Collateral discounts 0 % Collateral dependent impaired loans 900 Discounted appraisals Collateral discounts 0 % December 31, 2015 Foreclosed real estate $ 500 Discounted appraisal Collateral discounts 32 % Collateral dependent impaired loans 552 Discounted appraisals Collateral discounts 0 %
Summary of Carrying Values, Estimated Fair Values and Placement in Fair Value Hierarchy of Company's Financial Instruments	The estimated fair values, and related carrying amounts, of the Company’s financial instruments are presented below. Certain financial instruments and all non-financial instruments are exempt from disclosure requirements. Accordingly, the aggregate fair value amounts presented herein do not represent the underlying fair value of the Company. This table excludes financial instruments for which the carrying amount approximates fair value. Financial assets for which the fair value approximates carrying value include cash and cash equivalents and accrued interest receivable. Financial liabilities for which the fair value approximates carrying value include mortgagor’s escrow accounts and accrued interest payable. June 30, 2016 Carrying Fair Amount Value Level 1 Level 2 Level 3 (In thousands) Financial assets: Certificates of deposit $ 4,675 $ 4,746 $ — $ 4,746 $ — Securities available for sale 55,253 55,253 — 55,253 — Loans held for sale 4,822 4,908 — 4,908 — Loans, net 295,599 297,897 — — 297,897 Derivative assets 517 517 — 517 — Financial liabilities: Deposits $ 391,584 $ 391,995 $ — $ 391,995 $ — FHLBB advances 24,068 24,066 — 24,066 — Derivative liabilities 182 182 — 182 — December 31, 2015 Carrying Fair Amount Value Level 1 Level 2 Level 3 (In thousands) Financial assets: Certificates of deposit $ 4,675 $ 4,711 $ — $ 4,711 $ — Securities available for sale 62,267 62,267 — 62,267 — Loans held for sale 2,870 2,931 — 2,931 — Loans, net 285,151 283,542 — — 283,542 Derivative assets 107 107 — 107 — Financial liabilities: Deposits $ 309,195 $ 309,076 $ — $ 309,076 $ — FHLBB advances 34,914 34,971 — 34,971 —

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail) - USD ($)	Jul. 01, 2016	Jul. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Basis Of Presentation [Line Items]
Stock subscriptions				$ 67,442,000
Deferred costs				862,000
Total stock offering costs				2,300,000
Income tax expense (benefit)			$ (1,000)	$ 3,000	$ (4,000)
The Randolph Savings Charitable Foundation, Inc. [Member]
Basis Of Presentation [Line Items]
Conversion of stock, shares issued				181,976
Conversion of stock, cash				$ 455,000
Subsequent Event [Member]
Basis Of Presentation [Line Items]
Sale of stock, transaction date	Jul. 1, 2016
Gross proceeds from common stock	$ 56,867,500
Sale of share in employee stock ownership plan	469,498
Loan repaid term	25 years
Subscriptions refunded amount	$ 16,494,000
Subsequent Event [Member] | The Randolph Savings Charitable Foundation, Inc. [Member]
Basis Of Presentation [Line Items]
Stock conversion expense		$ 2,274,700
Income tax expense (benefit)		$ 0
Subsequent Event [Member] | Common Stock [Member]
Basis Of Presentation [Line Items]
Mutual-to-stock transaction, shares sold	5,686,750
Subsequent Event [Member] | Common Stock [Member] | Maximum [Member]
Basis Of Presentation [Line Items]
Sale of stock, price per share	$ 10

Comprehensive Income - Componen

Comprehensive Income - Components of Accumulated Other Comprehensive Income and Related Tax Effects (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, Net of Tax	$ 231	$ 114	$ 992	$ (96)
Accumulated other comprehensive income	$ 1,254		1,254		$ 261
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, Before tax			1,872		886
Other comprehensive income, Tax effect			(423)		(423)
Other comprehensive income, Net of Tax			1,449		463
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, Before tax			(725)		(743)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, Before tax			587		598
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income, Before tax			(138)		(145)
Other comprehensive income, Tax effect			(57)		(57)
Other comprehensive income, Net of Tax			$ (195)		$ (202)

Securities Available for Sale -

Securities Available for Sale - Schedule of Amortized Cost and Fair Value of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 53,381	$ 61,381
Gross Unrealized Gains	1,883	1,198
Gross Unrealized Losses	(11)	(312)
Fair Value	55,253	62,267
Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	52,836	60,836
Gross Unrealized Gains	1,876	1,198
Gross Unrealized Losses	(11)	(312)
Fair Value	54,701	61,722
Debt Securities [Member] | US Government-sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,999	6,886
Gross Unrealized Gains	158	159
Gross Unrealized Losses		(12)
Fair Value	4,157	7,033
Debt Securities [Member] | Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,064	4,250
Gross Unrealized Gains	102	78
Gross Unrealized Losses	(6)	(48)
Fair Value	3,160	4,280
Debt Securities [Member] | Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	13,884	15,327
Gross Unrealized Gains	628	472
Gross Unrealized Losses	(1)	(24)
Fair Value	14,511	15,775
Debt Securities [Member] | Residential Mortgage-backed Securities, US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,414	19,742
Gross Unrealized Gains	674	406
Gross Unrealized Losses	(4)	(120)
Fair Value	19,084	20,028
Debt Securities [Member] | Residential Mortgage-backed Securities, US Government Guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,619	7,276
Gross Unrealized Gains	208	50
Fair Value	6,827	7,326
Debt Securities [Member] | Commercial Mortgage Backed Securities, U.S. Government-guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,856	7,355
Gross Unrealized Gains	106	33
Gross Unrealized Losses		(108)
Fair Value	6,962	7,280
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	545	545
Gross Unrealized Gains	7
Fair Value	$ 552	$ 545

Securities Available for Sale24

Securities Available for Sale - Investments Classified by Contractual Maturity Date (Detail) $ in Thousands	Jun. 30, 2016USD ($)
Available-for-sale Securities, Debt Maturities, Amortized Cost
Within 1 year	$ 0
After 1 year through 5 years	13,261
After 5 years through 10 years	7,686
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis, Total	20,947
Mortgage-backed securities	31,889
Available-for-sale Debt Securities, Amortized Cost Basis, Total	52,836
Available-for-sale Securities, Debt Maturities, Fair Value
Within 1 year	0
After 1 year through 5 years	13,706
After 5 years through 10 years	8,122
Available-for-sale Securities, Debt Maturities, Single Maturity Date, Fair Value Total	21,828
Mortgage-backed securities	32,873
Available-for-sale Securities, Debt Securities, Fair Value Total	$ 54,701

Securities Available for Sale25

Securities Available for Sale - Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value (Detail) - Debt Securities [Member] - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses	$ 0	$ 0
Less Than Twelve Months, Fair Value	0	0
Over Twelve Months, Gross Unrealized Losses	(11)	(312)
Over Twelve Months, Fair Value	4,270	17,318
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses	0	0
Less Than Twelve Months, Fair Value	0	0
Over Twelve Months, Gross Unrealized Losses	(6)	(48)
Over Twelve Months, Fair Value	1,009	2,088
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses	0	0
Less Than Twelve Months, Fair Value	0	0
Over Twelve Months, Gross Unrealized Losses	(1)	(24)
Over Twelve Months, Fair Value	487	2,185
Residential Mortgage-backed Securities, US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses	0	0
Less Than Twelve Months, Fair Value	0	0
Over Twelve Months, Gross Unrealized Losses	(4)	(120)
Over Twelve Months, Fair Value	2,774	5,994
Commercial Mortgage Backed Securities, U.S. Government-guaranteed [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses	0	0
Less Than Twelve Months, Fair Value	$ 0	0
Over Twelve Months, Gross Unrealized Losses		(108)
Over Twelve Months, Fair Value		5,062
US Government-sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less Than Twelve Months, Gross Unrealized Losses		0
Less Than Twelve Months, Fair Value		0
Over Twelve Months, Gross Unrealized Losses		(12)
Over Twelve Months, Fair Value		$ 1,989

Securities Available for Sale26

Securities Available for Sale - Additional Information (Detail)	Jun. 30, 2016Debt_Security
Schedule of Available-for-sale Securities [Line Items]
Number of debt securities with unrealized losses	14
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses debt securities aggregate depreciation percentage	1.00%

Loans and Allowance for Loan 27

Loans and Allowance for Loan Losses - Summary of Loan Portfolio (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 297,629	$ 287,102
Allowance for loan losses	(3,259)	(3,239)
Net deferred loan costs and fees, and purchase premiums	1,229	1,288
Net loans	295,599	285,151
Real Estate Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	292,455	282,460
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	81,719	74,911
Commercial Real Estate Loans [Member] | Real Estate Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	81,719	74,911
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,996	2,040
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	3,178	2,602
One-to-Four Family [Member] | Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	168,128	166,483
One-to-Four Family [Member] | Residential Real Estate [Member] | Real Estate Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	168,128	166,483
Home Equity Loans and Lines of Credit [Member] | Residential Real Estate [Member] | Real Estate Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	35,338	33,259
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	7,270	7,807
Construction [Member] | Real Estate Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 7,270	$ 7,807

Loans and Allowance for Loan 28

Loans and Allowance for Loan Losses - Summary of Changes in the Allowance for Loan Losses by Portfolio Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 3,285	$ 3,537	$ 3,239	$ 3,544
Provision for loan losses		125	62	125
Loans charged-off	(34)	(12)	(60)	(29)
Recoveries	8	3	18	13
Ending balance	3,259	3,653	3,259	3,653
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,559	1,539	1,402	1,539
Provision for loan losses	(39)	41	118	41
Ending balance	1,520	1,580	1,520	1,580
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	36	51	37	51
Provision for loan losses		8	(1)	8
Recoveries		1		1
Ending balance	36	44	36	44
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	84	31	53	38
Provision for loan losses	21	(25)	69	(25)
Loans charged-off	(34)	(12)	(60)	(29)
Recoveries	7	1	16	11
Ending balance	78	45	78	45
One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,054	1,368	1,076	1,368
Provision for loan losses	(9)	55	(32)	55
Recoveries	1	1	2	1
Ending balance	1,046	1,314	1,046	1,314
Second Mortgages and HELOC [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	431	488	512	488
Provision for loan losses	13	(54)	(68)	(54)
Ending balance	444	542	444	542
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	121	60	159	60
Provision for loan losses	14	(68)	(24)	(68)
Ending balance	$ 135	$ 128	$ 135	$ 128

Loans and Allowance for Loan 29

Loans and Allowance for Loan Losses - Summary of Additional Information Pertaining to the Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for impaired loans	$ 244		$ 284
Allowance for non-impaired loans	3,015		2,955
Total allowance for loan losses	3,259	$ 3,285	3,239	$ 3,653	$ 3,537	$ 3,544
Impaired loans	6,062		6,703
Non-impaired loans	291,567		280,399
Total loans	297,629		287,102
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for non-impaired loans	36		37
Total allowance for loan losses	36	36	37	44	51	51
Impaired loans			16
Non-impaired loans	1,996		2,024
Total loans	1,996		2,040
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for non-impaired loans	78		53
Total allowance for loan losses	78	84	53	45	31	38
Non-impaired loans	3,178		2,602
Total loans	3,178		2,602
One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for impaired loans	223		254
Allowance for non-impaired loans	823		822
Total allowance for loan losses	1,046	1,054	1,076	1,314	1,368	1,368
Impaired loans	4,564		4,961
Non-impaired loans	163,564		161,522
Total loans	168,128		166,483
Second Mortgages and HELOC [Member] | Residential Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for impaired loans	2		2
Allowance for non-impaired loans	442		510
Total allowance for loan losses	444	431	512	542	488	488
Impaired loans	277		277
Non-impaired loans	35,061		32,982
Total loans	35,338		33,259
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for impaired loans	19		28
Allowance for non-impaired loans	1,501		1,374
Total allowance for loan losses	1,520		1,402
Impaired loans	1,221		1,449
Non-impaired loans	80,498		73,462
Total loans	81,719		74,911
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for non-impaired loans	135		159
Total allowance for loan losses	135	$ 121	159	$ 128	$ 60	$ 60
Non-impaired loans	7,270		7,807
Total loans	$ 7,270		$ 7,807

Loans and Allowance for Loan 30

Loans and Allowance for Loan Losses - Schedule of Past Due and Non-Accrual Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 392	$ 829
Non- accrual Loans	1,992	2,068
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- accrual Loans		16
One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	392	582
Non- accrual Loans	1,715	2,022
Home Equity Loans and Lines of Credit [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		247
Non- accrual Loans	277	30
30 - 59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	392	403
30 - 59 Days Past Due [Member] | One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 392	403
60 - 89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		380
60 - 89 Days Past Due [Member] | One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		133
60 - 89 Days Past Due [Member] | Home Equity Loans and Lines of Credit [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		247
90 Days or More Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		46
90 Days or More Past Due [Member] | One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due		$ 46

Loans and Allowance for Loan 31

Loans and Allowance for Loan Losses - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2016USD ($)	Jun. 30, 2015USD ($)	Jun. 30, 2016USD ($)LoansTDRs	Jun. 30, 2015USD ($)LoansTDRs	Dec. 31, 2015USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans past due 90 days or more	$ 0		$ 0		$ 0
Impaired loans, additional funds committed	0		0
Troubled debt restructuring amount			$ 3,859,000	$ 8,138,000
Number of loans modified | Loans			0	2
Aggregate balance of loans modified		$ 434,000		$ 434,000
Change to allowance for loan losses	0	0	$ 0	0
30 - 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings defaulted over 30 days past due	0	0	$ 0	$ 0
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate on modified loans, deduction range				1.00%
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate on modified loans, deduction range				3.00%
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans subject to troubled debt restructurings | TDRs			18	28
Loans subject to troubled debt restructurings, amount	4,548,000	6,373,000	$ 4,548,000	$ 6,373,000
Residential Real Estate [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructuring, interest rate concession period			3 months
Residential Real Estate [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructuring, interest rate concession period			30 years
Commercial Real Estate Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans subject to troubled debt restructurings | TDRs			5	7
Loans subject to troubled debt restructurings, amount	$ 1,010,000	$ 4,081,000	$ 1,010,000	$ 4,081,000
Commercial Real Estate Loans [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructuring, interest rate concession period			1 year

Loans and Allowance for Loan 32

Loans and Allowance for Loan Losses - Summary of Impaired Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Impaired [Line Items]
Recorded Investment without a valuation allowance	$ 1,472	$ 1,559
Recorded Investment, Total impaired loans	6,062	6,703
Unpaid Principal Balance without a valuation allowance	1,472	1,559
Unpaid Principal Balance, Total impaired loans	6,062	6,703
Related Allowance without a valuation allowance	0	0
Recorded Investment with a valuation allowance	4,590	5,144
Unpaid Principal Balance with a valuation allowance	4,590	5,144
Related Allowance, Total impaired loans	244	284
Commercial Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment without a valuation allowance	276	422
Unpaid Principal Balance without a valuation allowance	276	422
Related Allowance without a valuation allowance	0	0
Recorded Investment with a valuation allowance	945	1,026
Unpaid Principal Balance with a valuation allowance	945	1,026
Related Allowance, Total impaired loans	19	28
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment without a valuation allowance		16
Unpaid Principal Balance without a valuation allowance		16
Related Allowance without a valuation allowance		0
One-to-Four Family [Member] | Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment without a valuation allowance	949	874
Unpaid Principal Balance without a valuation allowance	949	874
Related Allowance without a valuation allowance	0	0
Recorded Investment with a valuation allowance	3,615	4,088
Unpaid Principal Balance with a valuation allowance	3,615	4,088
Related Allowance, Total impaired loans	223	254
Home Equity Loans and Lines of Credit [Member] | Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Recorded Investment without a valuation allowance	247	247
Unpaid Principal Balance without a valuation allowance	247	247
Related Allowance without a valuation allowance	0	0
Recorded Investment with a valuation allowance	30	30
Unpaid Principal Balance with a valuation allowance	30	30
Related Allowance, Total impaired loans	$ 2	$ 2

Loans and Allowance for Loan 33

Loans and Allowance for Loan Losses - Summary of Additional Information Pertaining to Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 6,307	$ 13,054	$ 6,499	$ 13,637
Interest Income Recognized	66	145	123	294
Cash Basis Interest Recognized	17	18	30	40
Residential Real Estate [Member] | One-to-Four Family [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	4,783	6,441	4,942	6,469
Interest Income Recognized	48	52	89	110
Cash Basis Interest Recognized	16	16	29	33
Residential Real Estate [Member] | Home Equity Loans and Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	288	18	241	36
Interest Income Recognized	1		1	1
Cash Basis Interest Recognized	1		1
Commercial Real Estate Loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,236	6,578	1,304	7,115
Interest Income Recognized	$ 17	93	33	183
Cash Basis Interest Recognized		2		7
Commercial and Industrial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment		$ 17	$ 12	$ 17

Loans and Allowance for Loan 34

Loans and Allowance for Loan Losses - Summary of Company's Loans by Risk Rating (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 297,629	$ 287,102
Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	81,719	74,911
Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,996	2,040
Pass [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	80,706	73,517
Pass [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	1,946	2,006
Special Mention [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	802	1,145
Special Mention [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	50
Substandard [Member] | Commercial Real Estate Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	211	249
Substandard [Member] | Commercial and Industrial [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans		34
Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	7,270	7,807
Construction [Member] | Pass [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total loans	$ 7,270	$ 7,807

On-Balance Sheet Derivative I35

On-Balance Sheet Derivative Instruments and Hedging Activities - Additional Information (Detail) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Derivative Loan Commitments [Member]
Derivative [Line Items]
Derivative, Notional amount	$ 23,717,000	$ 5,292,000
Derivative fair value, Asset	515,000	93,000
Forward Loan Sale Commitments [Member]
Derivative [Line Items]
Derivative fair value, Asset	2,000	14,000
Derivative fair value, Liability	182,000
Other Assets [Member] | Derivative Loan Commitments [Member]
Derivative [Line Items]
Derivative fair value, Asset	515,000	93,000
Not Designated as Hedging Instrument [Member] | Forward Loan Sale Commitments [Member]
Derivative [Line Items]
Derivative, Notional amount	25,745,000	7,371,000
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Forward Loan Sale Commitments [Member]
Derivative [Line Items]
Derivative fair value, Asset	2,000	$ 14,000
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Forward Loan Sale Commitments [Member]
Derivative [Line Items]
Derivative fair value, Liability	$ 182,000

Fair Value of Assets and Liab36

Fair Value of Assets and Liabilities - Additional information (Detail) - USD ($)	3 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Fair Value Disclosures [Abstract]
Liabilities measured at fair value on recurring basis		$ 0
Valuation allowance for foreclosed real estate	$ 150,000
Liabilities measured at fair value on nonrecurring basis	$ 0	$ 0

Fair Value of Assets and Liab37

Fair Value of Assets and Liabilities - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	$ 55,253	$ 62,267
Derivative Loan Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	515	93
Forward Loan Sale Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2	14
Derivative liabilities	182
Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	54,701	61,722
Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	552	545
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	55,253	62,267
Derivative assets	517	107
Derivative liabilities	182
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Derivative Loan Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	515	93
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Forward Loan Sale Commitments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	2	14
Derivative liabilities	182
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	54,701	61,722
Fair Value, Measurements, Recurring [Member] | Level 2 [Member] | Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale debt securities	$ 552	$ 545

Fair Value of Assets and Liab38

Fair Value of Assets and Liabilities - Schedule of Assets Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, Loans held for sale	$ 4,908	$ 2,931
Fair Value, Measurements, Nonrecurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, Loans held for sale	4,822	2,870
Fair value, Mortgage servicing rights	2,768	2,567
Assets, Fair Value Disclosure	7,590	5,437
Fair Value, Measurements, Nonrecurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, Collateral dependent impaired loans	900	552
Fair value, Foreclosed real estate	350	500
Assets, Fair Value Disclosure	$ 1,250	$ 1,052

Fair Value of Assets and Liab39

Fair Value of Assets and Liabilities - Schedule of Significant Unobservable Inputs Used in Fair Value Measurements of Level 3 Assets and Liabilities (Detail) - Level 3 [Member] - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Fair Value	$ 1,250	$ 1,052
Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Fair Value	$ 350	$ 500
Collateral discounts	0.00%	32.00%
Collateral Dependent Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Fair Value	$ 900	$ 552
Collateral discounts	0.00%	0.00%

Fair Value of Assets and Liab40

Fair Value of Assets and Liabilities - Schedule of Significant Unobservable Inputs Used in Fair Value Measurements of Level 3 Assets and Liabilities (Parenthetical) (Detail) - Level 3 [Member] - Fair Value, Measurements, Nonrecurring [Member]	6 Months Ended
	Jun. 30, 2016
Foreclosed Real Estate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation Technique	Discounted appraisals
Valuation technique	Discounted appraisals
Collateral Dependent Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Valuation Technique	Discounted appraisals
Valuation technique	Discounted appraisals

Fair Value of Assets and Liab41

Fair Value of Assets and Liabilities - Summary of Carrying Values, Estimated Fair Values and Placement in Fair Value Hierarchy of Company's Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financial assets:
Securities available for sale	$ 55,253	$ 62,267
Level 2 [Member]
Financial assets:
Certificates of deposit	4,746	4,711
Securities available for sale	55,253	62,267
Loans held for sale	4,908	2,931
Derivative assets	517	107
Financial liabilities:
Deposits	391,995	309,076
FHLBB advances	24,066	34,971
Derivative liabilities	182
Level 3 [Member]
Financial assets:
Loans, net	297,897	283,542
Carrying Amount [Member]
Financial assets:
Certificates of deposit	4,675	4,675
Securities available for sale	55,253	62,267
Loans held for sale	4,822	2,870
Loans, net	295,599	285,151
Derivative assets	517	107
Financial liabilities:
Deposits	391,584	309,195
FHLBB advances	24,068	34,914
Derivative liabilities	182
Fair Value [Member]
Financial assets:
Certificates of deposit	4,746	4,711
Securities available for sale	55,253	62,267
Loans held for sale	4,908	2,931
Loans, net	297,897	283,542
Derivative assets	517	107
Financial liabilities:
Deposits	391,995	309,076
FHLBB advances	24,066	$ 34,971
Derivative liabilities	$ 182

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - USD ($)	Jul. 01, 2016	Jun. 30, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Loans held for sale		$ 4,822,000	$ 2,870,000
Portfolio loans		295,599,000	285,151,000
Mortgage servicing rights		2,768,000	2,567,000
Total deposits		$ 391,584,000	$ 309,195,000
First Eastern [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Business acquisition, date	Jul. 1, 2016
Cash payment to acquisition	$ 13,907,000
Loans held for sale	26,209,000
Portfolio loans	30,824,000
Mortgage servicing rights	4,396,000
Total deposits	$ 41,737,000