BSB Bancorp 10-Q 3 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 27, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	BLMT
Entity Registrant Name	BSB BANCORP, INC.
Entity Central Index Key	1,522,420
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		9,751,597

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash and due from banks	$ 2,087	$ 1,771
Interest-bearing deposits in other banks	101,615	109,117
Cash and cash equivalents	103,702	110,888
Interest-bearing time deposits with other banks	2,415	2,440
Investments in available-for-sale securities	4,042	16,921
Investments in held-to-maturity securities (fair value of $149,932 as of June 30, 2018 (unaudited) and $158,385 as of December 31, 2017)	153,654	160,090
Federal Home Loan Bank stock, at cost	40,082	32,382
Loans held-for-sale	4,104
Loans, net of allowance for loan losses of $17,296 as of June 30, 2018 (unaudited) and $16,312 as of December 31, 2017	2,539,318	2,296,958
Premises and equipment, net	2,335	2,254
Accrued interest receivable	6,950	6,344
Deferred tax asset, net	5,924	5,794
Income taxes receivable	476	53
Bank-owned life insurance	37,496	36,967
Other assets	8,612	5,474
Total assets	2,909,110	2,676,565
Deposits:
Noninterest-bearing	194,700	221,462
Interest-bearing	1,639,163	1,529,789
Total deposits	1,833,863	1,751,251
Federal Home Loan Bank advances	855,250	723,150
Securities sold under agreements to repurchase	3,999	3,268
Accrued interest payable	2,004	1,594
Deferred compensation liability	8,232	7,919
Other liabilities	14,554	11,354
Total liabilities	2,717,902	2,498,536
Stockholders' Equity:
Common stock; $0.01 par value per share, 100,000,000 shares authorized; 9,748,669 and 9,707,665 shares issued and outstanding at June 30, 2018 (unaudited) and December 31, 2017, respectively	97	97
Additional paid-in capital	95,741	94,590
Retained earnings	98,943	86,884
Accumulated other comprehensive (loss) income	(17)	89
Unearned compensation - ESOP	(3,556)	(3,631)
Total stockholders' equity	191,208	178,029
Total liabilities and stockholders' equity	$ 2,909,110	$ 2,676,565

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Investments in held-to-maturity securities, fair value	$ 149,932	$ 158,385
Loans, allowance for loan losses	$ 17,296	$ 16,312
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	9,748,669	9,707,665
Common stock, shares outstanding	9,748,669	9,707,665

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest and dividend income:
Interest and fees on loans	$ 22,320	$ 17,508	$ 43,018	$ 33,895
Interest on taxable debt securities	823	849	1,771	1,624
Dividends	450	290	834	546
Other interest income	289	117	678	205
Total interest and dividend income	23,882	18,764	46,301	36,270
Interest expense:
Interest on deposits	5,427	2,988	9,849	5,601
Interest on Federal Home Loan Bank advances	3,350	1,827	6,209	3,458
Interest on securities sold under agreements to repurchase	2	1	3	2
Total interest expense	8,779	4,816	16,061	9,061
Net interest and dividend income	15,103	13,948	30,240	27,209
Provision for loan losses	726	707	1,001	1,536
Net interest and dividend income after provision for loan losses	14,377	13,241	29,239	25,673
Noninterest income:
Income from bank-owned life insurance	261	294	529	546
Net gain on sales of loans	24	338	336	347
Loan level derivative income	1,032		1,032
Other income	101	63	96	133
Total noninterest income	1,711	995	2,604	1,625
Noninterest expense:
Salaries and employee benefits	5,022	4,789	9,883	9,447
Director compensation	227	356	422	659
Occupancy expense	236	232	500	498
Equipment expense	93	103	175	227
Deposit insurance	495	416	984	818
Data processing	729	694	1,463	1,388
Professional fees	283	270	544	558
Marketing	248	283	514	561
Other expense	463	502	991	965
Total noninterest expense	7,796	7,645	15,476	15,121
Income before income tax expense	8,292	6,591	16,367	12,177
Income tax expense	2,224	2,579	4,289	4,499
Net income	$ 6,068	$ 4,012	$ 12,078	$ 7,678
Earnings per share
Basic	$ 0.68	$ 0.45	$ 1.35	$ 0.87
Diluted	$ 0.65	$ 0.43	$ 1.29	$ 0.83
Customer Service Fees
Noninterest income:
Income from Customer service and loan servicing	$ 205	$ 199	$ 406	$ 382
Loan Servicing Fee
Noninterest income:
Income from Customer service and loan servicing	$ 88	$ 101	$ 205	$ 217

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 6,068	$ 4,012	$ 12,078	$ 7,678
Other comprehensive income (loss), net of tax:
Net change in fair value of securities available for sale	(13)	(3)	(68)	64
Net change in fair value of cash flow hedge	73		(57)
Total other comprehensive income (loss)	60	(3)	(125)	64
Total comprehensive income	$ 6,128	$ 4,009	$ 11,953	$ 7,742

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Unearned Compensation - ESOP
Balance (in shares) at Dec. 31, 2016		9,110,077
Balance at Dec. 31, 2016	$ 160,921	$ 91	$ 92,013	$ 72,498	$ 103	$ (3,784)
Net income	7,678			7,678
Other comprehensive income (loss)	64				64
ESOP shares committed to be released	218		141			77
Stock based compensation-restricted stock awards	807		807
Stock based compensation-stock options	385		385
Restricted stock awards granted		$ 5	(5)
Restricted stock awards granted (in shares)		487,200
Proceeds from exercises of stock options, net of cash paid for income taxes	(248)	$ 1	(249)
Proceeds from exercises of stock options, net of cash paid for income taxes (in shares)		96,983
Balance (in shares) at Jun. 30, 2017		9,694,260
Balance at Jun. 30, 2017	$ 169,825	$ 97	93,092	80,176	167	(3,707)
Balance (in shares) at Dec. 31, 2017	9,707,665	9,707,665
Balance at Dec. 31, 2017	$ 178,029	$ 97	94,590	86,884	89	(3,631)
Net income	12,078			12,078
Other comprehensive income (loss)	(125)				(125)
Reclassification of income tax effects related to items stranded within accumulated other comprehensive income from the Tax Cuts and Jobs Act				(19)	19
ESOP shares committed to be released	241		166			75
Stock based compensation-restricted stock awards	657		657
Stock based compensation-stock options	45		45
Restricted stock awards granted	(274)		(274)
Restricted stock awards granted (in shares)		(8,971)
Proceeds from exercises of stock options, net of cash paid for income taxes	$ 557		557
Proceeds from exercises of stock options, net of cash paid for income taxes (in shares)		49,975
Balance (in shares) at Jun. 30, 2018	9,748,669	9,748,669
Balance at Jun. 30, 2018	$ 191,208	$ 97	$ 95,741	$ 98,943	$ (17)	$ (3,556)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 12,078	$ 7,678
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of securities, net	442	406
Gain on sales of loans, net	(336)	(347)
Loans originated for sale	(6,876)	(2,564)
Proceeds from sales of loans	23,592	26,388
Provision for loan losses	1,001	1,536
Change in net unamortized mortgage premiums	(604)	(1,133)
Change in net deferred loan costs	(75)	145
ESOP expense	241	218
Stock based compensation expense	702	1,192
Depreciation and amortization expense	284	303
Impairment of fixed assets	2	18
Gain on the sale of fixed assets	(11)
Deferred income tax (benefit) expense	(80)	359
Increase in bank-owned life insurance	(529)	(546)
Net change in:
Accrued interest receivable	(606)	(480)
Other assets	(1,692)	(475)
Income taxes receivable	(423)	(610)
Accrued interest payable	410	270
Deferred compensation liability	313	421
Other liabilities	1,446	918
Net cash provided by operating activities	29,279	33,697
Cash flows from investing activities:
Maturities of interest-bearing time deposits with other banks	625	134
Purchases of interest-bearing time deposits with other banks	(600)	(135)
Proceeds from maturities of available-for-sale securities	12,750
Proceeds from maturities, payments and calls of held-to-maturity securities	24,264	13,014
Purchases of held-to-maturity securities	(18,237)	(23,709)
Redemption of Federal Home Loan Bank stock	6,930	642
Purchases of Federal Home Loan Bank stock	(14,630)	(5,999)
Recoveries of loans previously charged off	12	17
Loan originations and principal collections, net	(81,339)	(19,145)
Purchases of loans	(181,839)	(206,446)
Proceeds from the sale of fixed assets	25
Capital expenditures	(381)	(299)
Premiums paid on bank-owned life insurance		(5)
Net cash used in investing activities	(252,420)	(241,931)
Cash flows from financing activities:
Net increase in demand deposits, interest-bearing checking and savings accounts	5,083	62,931
Net increase in time deposits	77,529	78,462
Net proceeds from long-term Federal Home Loan Bank borrowings	90,000	95,000
Principal payments on long-term Federal Home Loan Bank borrowings	(20,000)
Net change in short-term Federal Home Loan Bank advances	62,100	(36,600)
Payment to counterparty for interest rate cap contract	(1,525)
Net increase in securities sold under agreement to repurchase	731	1,045
Net increase in mortgagors' escrow accounts	1,754	826
Net proceeds from exercise of stock options	557	183
Payment of income taxes for shares withheld in stock based award activity	(274)	(448)
Net cash provided by financing activities	215,955	201,399
Net (decrease) increase in cash and cash equivalents	(7,186)	(6,835)
Cash and cash equivalents at beginning of period	110,888	58,876
Cash and cash equivalents at end of period	103,702	52,041
Supplemental disclosures:
Interest paid	15,651	8,791
Income taxes paid	4,792	4,750
Transfer of loans held for investment to loans held for sale	$ 20,519	$ 23,559

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	NOTE 1 – BASIS OF PRESENTATION The accompanying unaudited consolidated financial statements of BSB Bancorp, Inc. have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q 10-01 S-X. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) necessary to present fairly the Company’s financial position as of June 30, 2018 and December 31, 2017 and the results of operations and cash flows for the interim periods ended June 30, 2018 and 2017. All interim amounts have not been audited, and the results of operations for the interim periods herein are not necessarily indicative of the results of operations to be expected for the fiscal year. The accompanying unaudited consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K Certain previously reported amounts have been reclassified to conform to the current period’s presentation.

RECENT ACCOUNTING STANDARDS UPD

RECENT ACCOUNTING STANDARDS UPDATES	6 Months Ended
	Jun. 30, 2018
Accounting Changes and Error Corrections [Abstract]
RECENT ACCOUNTING STANDARDS UPDATES	NOTE 2 – RECENT ACCOUNTING STANDARDS UPDATES In May 2014, the Financial Accounting Standards Board (“FASB”) issued amendments to Accounting Standards Codification (“ASC”) section 606 “Revenue from Contracts with Customers” through the issuance of ASU No. 2014-09, 2015-14, 2015-14 2014-09 Our revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, non-interest non-interest • Customer service fees - these represent general service fees for monthly account maintenance and activity- or transaction-based fees and consist of transaction-based revenue, time-based revenue (service period), item-based revenue or some other individual attribute-based revenue. Revenue is recognized when our performance obligation is completed which is generally monthly for account maintenance services or when a transaction has been completed (such as a wire transfer, debit card transaction or ATM withdrawal). Payment for such performance obligations is generally received at the time the performance obligations are satisfied. In January 2016, the FASB issued ASU 2016-01, 825-10): ASU 2016-01, available-for-sale In February 2016, the FASB issued ASU 2016-02, Leases . In June 2016, the FASB issued ASU 2016-13, off-balance In August 2016, the FASB issued ASU 2016-15, Cash Payments. The update provides guidance on the classification of certain cash receipts and cash payments for presentation in the statement of cash flows. The amendments in this update were effective for the Company on January 1, 2018 and did not have a material impact on its consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, beginning-of-period end-of-period In February 2017, the FASB issued ASU 2017-05, 610-20): 610-20, In March 2017, the FASB issued ASU 2017-07, “Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” This ASU is meant to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost. The amendments in this ASU require that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately. The amendments in this update were effective for the Company on January 1, 2018 and did not have a material impact on its consolidated financial statements. In March 2017, the FASB issued ASU 2017-08, 310-20): In July 2017, the FASB issued ASU 2017-11, In August 2017, the FASB issued ASU 2017-12, In February 2018, the FASB issued ASU 2018-02, In June 2018, the FASB issued ASU 2018-07,

INVESTMENTS IN SECURITIES

INVESTMENTS IN SECURITIES	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
INVESTMENTS IN SECURITIES	NOTE 3 - INVESTMENTS IN SECURITIES The amortized cost basis of available-for-sale held-to-maturity June 30, 2018 December 31, 2017 Amortized Gross Gross Amortized Gross Gross Cost Unrealized Unrealized Fair Cost Unrealized Unrealized Fair Basis Gains Losses Value Basis Gains Losses Value (unaudited) Available-for-sale Corporate debt securities $ 4,192 $ — $ (150 ) $ 4,042 $ 16,975 $ 24 $ (78 ) $ 16,921 $ 4,192 $ — $ (150 ) $ 4,042 $ 16,975 $ 24 $ (78 ) $ 16,921 Held-to-maturity U.S. government sponsored mortgage-backed securities $ 142,919 $ 92 $ (3,720 ) $ 139,291 $ 142,383 $ 145 $ (2,089 ) $ 140,439 Corporate debt securities 10,735 10 (104 ) 10,641 17,707 239 — 17,946 $ 153,654 $ 102 $ (3,824 ) $ 149,932 $ 160,090 $ 384 $ (2,089 ) $ 158,385 The amortized cost basis and estimated fair value of debt securities by contractual maturity at June 30, 2018 is as follows (in thousands and unaudited). Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. June 30, 2018 Available-for-Sale Held-to-Maturity Amortized Fair Amortized Fair Cost Basis Value Cost Basis Value (unaudited) (unaudited) Due within one year $ — $ — $ — $ — Due after one year through five years 4,192 4,042 12,401 12,243 Due after five years through ten years — — 32,332 31,248 Due after ten years — — 108,921 106,441 $ 4,192 $ 4,042 $ 153,654 $ 149,932 When securities are sold, the adjusted cost basis of the specific security sold is used to compute the gain or loss on the sale. During the three and six months ended June 30, 2018 and 2017 (unaudited), there were no sales of available-for-sale In addition to the securities listed above, the Company holds investments in a Rabbi Trust that are used to fund the executive and director non-qualified 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 is as follows (in thousands): Less than 12 Months Over 12 Months # of Fair Unrealized Fair Unrealized Holdings Value Losses Value Losses June 30, 2018 (unaudited): Available-for-sale Corporate debt securities 1 $ — $ — $ 4,042 $ (150 ) Held-to-maturity Corporate debt securities 2 7,730 (104 ) — — U.S. government sponsored mortgage-backed securities 83 51,683 (1,034 ) 74,738 (2,686 ) Total temporarily impaired securities 86 $ 59,413 $ (1,138 ) $ 78,780 $ (2,836 ) December 31, 2017: Available-for-sale Corporate debt securities 1 $ — $ — $ 4,144 $ (78 ) Held-to-maturity U.S. government sponsored mortgage-backed securities 81 64,056 (718 ) 62,798 (1,371 ) Total temporarily impaired securities 82 $ 64,056 $ (718 ) $ 66,942 $ (1,449 ) 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. When there are securities in an unrealized loss position, consideration is given to (1) the length of time and the extent to which the fair value has been less than cost, (2) the financial condition and near-term prospects of the issuer, and (3) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. At June 30, 2018 (unaudited), 86 debt securities were in an unrealized loss position. Based on the Company’s June 30, 2018 (unaudited) quarterly review of securities in the investment portfolio, management has determined that unrealized losses related to the 86 debt securities with aggregate depreciation of 2.80% from the Company’s amortized cost basis were caused primarily by changes in market interest rates. The contractual terms of these investments do not permit the companies to settle the security at a price less than the par value of the investment. 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 the investments. Therefore, it is expected that the securities would not be settled at a price less than the par value of the investment. Because the Company does not intend to sell the investments and it is more likely than not that the Company will not be required to sell the investments before recovery of their amortized cost basis, it does not consider these investments to be other-than-temporarily impaired at June 30, 2018 (unaudited). At December 31, 2017, 82 debt securities had unrealized losses with aggregate depreciation of 1.63% from the Company’s amortized cost basis. The Company’s unrealized losses on debt securities are primarily caused by changes in market interest rates.

LOANS, ALLOWANCE FOR LOAN LOSSE

LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY	NOTE 4 – LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY Loans Loans that management has the intent and ability to hold for the foreseeable future or until maturity or pay-off Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized as an adjustment of the related loan yield using the interest method. The accrual of interest on all loans is discontinued at the time the loan is 90 days past due unless the credit is well-secured and in the process of collection. Past due status is based on contractual terms of the loan. In all cases, loans are placed on nonaccrual if collection of principal or interest is considered doubtful. All interest accrued but not collected for loans that are placed on nonaccrual is reversed against interest income. The interest on these loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Payments received on impaired loans are applied to reduce the recorded investment in the loan principal to the extent necessary to eliminate doubt as to the collectability of the net carrying amount of the loan. Some or all of the payments received on impaired loans are recognized as interest income if the remaining net carrying amount of the loan is deemed to be fully collectible. When recognition of interest income on an impaired loan on a cash basis is appropriate, the amount of income that is recognized is limited to that which would have been accrued on the net carrying amount of the loan at the contractual interest rate. Any cash interest payments received in excess of the limit and not applied to reduce the net carrying amount of the loan are recorded as recoveries of charge-offs until the charge-offs are fully recovered. 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 for loan losses when management believes the uncollectability of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance for loan losses. The allowance for loan losses is evaluated on a regular basis by management. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance for loan losses consists of general, allocated and unallocated components, as further described below. General Component: The general component of the allowance for loan losses is based on historical loss experience adjusted for qualitative factors stratified by the following loan segments: residential real estate, home equity lines of credit, commercial real estate, multi-family real estate, construction, commercial, indirect auto and other consumer. Management uses a rolling average of historical losses based on a time frame appropriate to capture relevant loss data for each loan segment. This historical loss factor is adjusted for the following qualitative factors: levels/trends in delinquencies; 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/depth of lending management and staff; and national and local economic trends and conditions. There were no changes in the Company’s policies or methodology pertaining to the general component of the allowance for loan losses during the three and six months ended June 30, 2018. However, during the three months ended June 30, 2018, the Company determined that multi-family real estate loans should be evaluated separately from other commercial real estate loans as its own homogenous loan segment. Accordingly, the related prior year amounts have been reclassified to reflect this change. The qualitative factors are determined based on the various risk characteristics of each loan segment. Risk characteristics relevant to each portfolio segment are as follows: Residential real estate loans and home equity lines of credit – The Company generally does not originate or purchase loans with a loan-to-value Commercial real estate loans – Loans in this segment are primarily secured by income-producing properties in eastern Massachusetts. The underlying cash flows generated by the properties may be adversely impacted by a downturn in the economy and increased vacancy rates, which in turn, will have an effect on the credit quality in this segment. Management generally performs on-site Multi-family real estate loans - These loans are primarily secured by five or more unit residential properties. The underlying cash flows generated by the properties may be adversely impacted by a downturn in the economy and increased vacancy rates, which in turn, will have an effect on the credit quality in this segment. Management generally performs on-site Construction loans – Loans in this segment primarily include speculative real estate development loans for which payment is derived from sale and/or lease up of the property. Credit risk is affected by cost overruns, time to sell, or lease at adequate prices and market conditions. Commercial loans – Loans in this segment are made to businesses and are primarily secured by real estate and in some cases, other assets of the business. Repayment is expected from the cash flows of the business. A weakened economy, and resultant decreased consumer and business spending, will have an effect on the credit quality in this segment. Indirect auto loans – Loans in this segment are secured installment loans that were originated through a network of select regional automobile dealerships. The Company’s interest in the vehicle is secured with a recorded lien on the state title of each automobile. Collections are sensitive to changes in borrower financial circumstances, and the collateral can depreciate or be damaged in the event of repossession. Repayment is primarily dependent on the credit worthiness and the cash flow of the individual borrower and secondarily, liquidation of the collateral. Other consumer loans - Loans in this segment include secured and unsecured consumer loans including passbook loans, consumer lines of credit, overdraft protection and other consumer unsecured loans. Repayment is dependent on the credit quality and the cash flow of the individual borrower. Allocated Component: The allocated component relates to loans that are classified as impaired. 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 The Company periodically may agree to modify the contractual terms of loans. When a loan is modified and a concession is made to a borrower experiencing financial difficulty, the modification is considered a troubled debt restructuring (“TDR”). All TDRs are classified as impaired. Impaired loans are measured for impairment based on the present value of expected future cash flows discounted at the loan’s effective interest rate or, as a practical expedient, at the loan’s observable market price or the fair value of the collateral if the loan is collateral-dependent. Generally, TDRs are measured for impairment using the discounted cash flow method except in instances where foreclosure is probable in which case the fair value of collateral method is used. When the fair value of the impaired loan is determined to be less than the recorded investment in the loan, the impairment is recorded through the valuation allowance. However, for collateral dependent loans, the amount of the recorded investment in a loan that exceeds the fair value of the collateral is charged-off Unallocated Component: An unallocated component may be maintained to cover uncertainties that could affect management’s estimate of incurred losses. The unallocated component of the allowance for loan losses reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating allocated and general reserves in the portfolio. At June 30, 2018 (unaudited) and December 31, 2017, the Company had unallocated reserves of $664,000 and $621,000, respectively. Loans consisted of the following (dollars in thousands): June 30, 2018 December 31, 2017 Amount Percent Amount Percent (unaudited) Mortgage loans: Residential one-to-four $ 1,520,873 59.79 % $ 1,333,058 57.93 % Commercial real estate loans 544,347 21.40 486,392 21.13 Multi-family real estate loans 185,000 7.27 155,680 6.77 Home equity lines of credit 171,741 6.75 178,624 7.76 Construction loans 38,460 1.51 53,045 2.31 Total mortgage loans 2,460,421 96.72 2,206,799 95.90 Commercial loans 63,215 2.48 63,722 2.77 Consumer loans: Indirect auto loans 19,804 0.78 30,227 1.31 Other consumer loans 408 0.02 435 0.02 83,427 3.28 94,384 4.10 Total loans 2,543,848 100.00 % 2,301,183 100.00 % Net deferred loan costs 3,501 3,426 Net unamortized mortgage premiums 9,265 8,661 Allowance for loan losses (17,296 ) (16,312 ) Total loans, net $ 2,539,318 $ 2,296,958 The following tables (in thousands) present the activity in the allowance for loan losses by portfolio class for the three and six months ended June 30, 2018 and 2017 (unaudited); and the balances of the allowance for loan losses and recorded investment in loans by portfolio class based on impairment method at June 30, 2018 (unaudited) and December 31, 2017. The recorded investment in loans in any of the following tables does not include accrued and unpaid interest, any deferred loan fees or costs or any premiums, as the amounts are not significant. Three Months Ended June 30, 2018 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 6,584 $ 560 $ — $ — $ 7,144 Commercial real estate 5,148 538 — — 5,686 Multi-family real estate 1,820 (248 ) — — 1,572 Home equity lines of credit 950 (109 ) — — 841 Construction 458 92 — — 550 Commercial 789 (101 ) — — 688 Indirect auto 193 (33 ) (16 ) 2 146 Other consumer 5 — — — 5 Unallocated 637 27 — — 664 Total $ 16,584 $ 726 $ (16 ) $ 2 $ 17,296 Three Months Ended June 30, 2017 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 5,223 $ 441 $ — $ — $ 5,664 Commercial real estate 3,924 398 — — 4,322 Multi-family real estate 1,326 (36 ) — — 1,290 Home equity lines of credit 1,011 13 — — 1,024 Construction 1,297 (144 ) — — 1,153 Commercial 713 5 — — 718 Indirect auto 335 1 (9 ) 12 339 Other consumer 8 2 (4 ) 1 7 Unallocated 545 27 — — 572 Total $ 14,382 $ 707 $ (13 ) $ 13 $ 15,089 Six Months Ended June 30, 2018 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 6,400 $ 744 $ — $ — $ 7,144 Commercial real estate 4,979 707 — — 5,686 Multi-family real estate 1,604 (32 ) — — 1,572 Home equity lines of credit 947 (106 ) — — 841 Construction 764 (214 ) — — 550 Commercial 758 (66 ) (4 ) — 688 Indirect auto 230 (73 ) (22 ) 11 146 Other consumer 9 (2 ) (3 ) 1 5 Unallocated 621 43 — — 664 Total $ 16,312 $ 1,001 $ (29 ) $ 12 $ 17,296 Six Months Ended June 30, 2017 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 4,828 $ 836 $ — $ — $ 5,664 Commercial real estate 3,676 646 — — 4,322 Multi-family real estate 1,209 81 — — 1,290 Home equity lines of credit 1,037 (13 ) — — 1,024 Construction 1,219 (66 ) — — 1,153 Commercial 728 (10 ) — — 718 Indirect auto 362 1 (40 ) 16 339 Other consumer 9 6 (9 ) 1 7 Unallocated 517 55 — — 572 Total $ 13,585 $ 1,536 $ (49 ) $ 17 $ 15,089 June 30, 2018 Individually evaluated for impairment Collectively evaluated for impairment Total Loan balance Allowance Loan balance Allowance Loan balance Allowance Residential one-to-four $ 2,109 $ 6 $ 1,518,764 $ 7,138 $ 1,520,873 $ 7,144 Commercial real estate 2,851 — 541,496 5,686 544,347 5,686 Multi-family real estate — — 185,000 1,572 185,000 1,572 Home equity lines of credit 50 — 171,691 841 171,741 841 Construction — — 38,460 550 38,460 550 Commercial — — 63,215 688 63,215 688 Indirect auto 1 — 19,803 146 19,804 146 Other consumer — — 408 5 408 5 Unallocated — — — 664 — 664 Total $ 5,011 $ 6 $ 2,538,837 $ 17,290 $ 2,543,848 $ 17,296 December 31, 2017 Individually evaluated for impairment Collectively evaluated for impairment Total Loan balance Allowance Loan balance Allowance Loan balance Allowance Residential one-to-four $ 2,688 $ 147 $ 1,330,370 $ 6,253 $ 1,333,058 $ 6,400 Commercial real estate 2,877 — 483,515 4,979 486,392 4,979 Multi-family real estate — — 155,680 1,604 155,680 1,604 Home equity lines of credit — — 178,624 947 178,624 947 Construction — — 53,045 764 53,045 764 Commercial — — 63,722 758 63,722 758 Indirect auto 4 — 30,223 230 30,227 230 Other consumer — — 435 9 435 9 Unallocated — — — 621 — 621 Total $ 5,569 $ 147 $ 2,295,614 $ 16,165 $ 2,301,183 $ 16,312 Information about loans that meet the definition of an impaired loan under ASC 310-10-35 Impaired loans with a related allowance for credit losses at June 30, 2018 Unpaid Related Recorded Principal Allowance for Investment Balance Credit Losses Residential one-to-four $ 195 $ 195 $ 6 Totals $ 195 $ 195 $ 6 Impaired loans with no related allowance for for credit losses at June 30, 2018 Unpaid Recorded Principal Investment Balance Residential one-to-four $ 1,914 $ 2,028 Commercial real estate 2,851 2,851 Home equity lines of credit 50 50 Indirect auto 1 1 Totals $ 4,816 $ 4,930 Impaired loans with a related allowance for credit losses at December 31, 2017 Unpaid Related Recorded Principal Allowance for Investment Balance Credit Losses Residential one-to-four $ 725 $ 725 $ 147 Totals $ 725 $ 725 $ 147 Impaired loans with no related allowance for credit losses at December 31, 2017 Unpaid Recorded Principal Investment Balance Residential one-to-four $ 1,963 $ 2,052 Commercial real estate 2,877 2,877 Indirect auto 4 4 Totals $ 4,844 $ 4,933 The following tables set forth information regarding interest income recognized on impaired loans, by portfolio segment, for the periods indicated (unaudited and in thousands): Three months ended June 30, 2018 Three months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income With an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 195 $ 2 $ 1,229 $ 8 Totals $ 195 $ 2 $ 1,229 $ 8 Three months ended June 30, 2018 Three months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income Without an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 1,923 $ 8 $ 1,767 $ 6 Commercial real estate 2,856 32 3,215 36 Home equity lines of credit 33 — 65 2 Indirect auto 3 — 7 — Totals $ 4,815 $ 40 $ 5,054 $ 44 Six months ended June 30, 2018 Six months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income With an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 283 $ 7 $ 1,066 $ 16 Totals $ 283 $ 7 $ 1,066 $ 16 Six months ended June 30, 2018 Six months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income Without an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 1,936 $ 16 $ 1,953 $ 9 Commercial real estate 2,864 62 3,260 72 Home equity lines of credit 17 — 212 13 Indirect auto 5 — 8 — Totals $ 4,822 $ 78 $ 5,433 $ 94 The following is a summary of past due and non-accrual June 30, 2018 (unaudited) 90 days 90 Days Total or more Loans on 30–59 Days 60–89 Days or More Past Due and accruing Non-accrual Real estate loans: Residential one-to-four $ 2,008 $ 1 $ 260 $ 2,269 $ — $ 707 Home equity lines of credit 138 — — 138 — 50 Other loans: Indirect auto 246 56 1 303 — 1 Total $ 2,392 $ 57 $ 261 $ 2,710 $ — $ 758 December 31, 2017 90 days 90 Days Total or more Loans on 30–59 Days 60–89 Days or More Past Due and accruing Non-accrual Real estate loans: Residential one-to-four $ 711 $ — $ 260 $ 971 $ — $ 1,372 Home equity lines of credit 716 — — 716 — — Other loans: Indirect auto 347 30 4 381 — 4 Total $ 1,774 $ 30 $ 264 $ 2,068 $ — $ 1,376 Credit Quality Information The Company utilizes a nine-grade internal loan rating system for commercial, multi-family, commercial real estate and construction loans, and a five-grade internal loan rating system for certain residential real estate and home equity lines of credit that are rated if the loans become delinquent, impaired or are restructured as a TDR. Loans rated 1, 2, 2.5, 3 and 3.5: Loans in these categories are considered “pass” rated loans with low to average risk. Loans rated 4: Loans in this category are considered “special mention.” These loans are starting to show signs of potential weakness and are being closely monitored by management. Loans rated 5: Loans in this category are considered “substandard.” Generally, a loan is considered substandard if it is inadequately protected by the current net worth and paying capacity of the obligors and/or the collateral pledged. There is a distinct possibility that the Company will sustain some loss if the weakness is not corrected. Loans rated 6: Loans in this category are considered “doubtful.” Loans classified as doubtful have all the weaknesses inherent in those classified as 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: Loans in this category 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, commercial real estate, multi-family real estate and construction loans. On an annual basis, 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. On a quarterly basis, the Company formally reviews the ratings on all residential real estate and home equity lines of credit if they have become delinquent. Criteria used to determine the rating consists of loan-to-value The following tables present the Company’s loans by risk rating at June 30, 2018 (unaudited and in thousands) and December 31, 2017 (in thousands). There were no loans rated as 6 (“doubtful”) or 7 (“loss”) at the dates indicated. June 30, 2018 Loans rated 1-3.5 Loans rated 4 Loans rated 5 Loans not rated (A) Total Residential one-to-four $ — $ 339 $ 1,387 $ 1,519,147 $ 1,520,873 Commercial real estate 540,568 — 3,779 — 544,347 Multi-family real estate 185,000 — — — 185,000 Home equity lines of credit — — 49 171,692 171,741 Construction 38,460 — — — 38,460 Commercial 63,215 — — — 63,215 Indirect auto — — — 19,804 19,804 Other consumer — — — 408 408 Total $ 827,243 $ 339 $ 5,215 $ 1,711,051 $ 2,543,848 December 31, 2017 Loans rated 1-3.5 Loans rated 4 Loans rated 5 Loans not rated (A) Total Residential one-to-four $ — $ 344 $ 2,060 $ 1,330,654 $ 1,333,058 Commercial real estate 482,574 — 3,818 — 486,392 Multi-family real estate 155,680 — — — 155,680 Home equity lines of credit — — 772 177,852 178,624 Construction 53,045 — — — 53,045 Commercial 63,682 40 — — 63,722 Indirect auto — — — 30,227 30,227 Consumer — — — 435 435 Total $ 754,981 $ 384 $ 6,650 $ 1,539,168 $ 2,301,183 (A) Residential real estate and home equity lines of credit are not formally risk rated by the Company unless the loans become delinquent, impaired or are restructured as a TDR. The Company periodically modifies loans to extend the term, reduce the interest rate or make other concessions to help a borrower stay current on their loan and to avoid foreclosure. Any loans that are modified are reviewed by the Company to determine if a TDR has occurred, which is when, for economic or legal reasons related to a borrower’s financial difficulties, the Company grants a concession to the borrower that it would not otherwise consider. During the three and six months ended June 30, 2018 (unaudited), there were no loans modified and determined to be TDRs. During the three and six months ended June 30, 2017 (unaudited), one existing TDR was modified again to extend the maturity. The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated (in thousands): June 30, 2018 December 31, 2017 (unaudited) TDRs on Accrual Status $ 4,253 $ 4,194 TDRs on Nonaccrual Status — 645 Total TDRs $ 4,253 $ 4,839 Amount of specific allocation included in the allowance for loan losses associated with TDRs $ 6 $ 147 Additional commitments to lend to a borrower who has been a party to a TDR $ — $ — The following tables show the TDR modifications which occurred during the three and six months ended June 30, 2017 and the change in the recorded investment subsequent to the modifications occurring (dollars in thousands and unaudited): Three months ended June 30, 2017 Pre-modification Post-modification # of outstanding outstanding Contracts recorded investment recorded investment Real estate loans: Commercial real estate loans 1 $ 273 $ 273 Total 1 $ 273 $ 273 Six months ended June 30, 2017 Pre-modification Post-modification # of outstanding outstanding Contracts recorded investment recorded investment Real estate loans: Commercial real estate loans 1 $ 273 $ 273 Total 1 $ 273 $ 273 The following table shows the Company’s post-modification balance of TDRs listed by type of modification during the three and six months ended June 30, 2017 (in thousands and unaudited): Three months ended June 30, 2017 Extended maturity $ 273 Total $ 273 Six months ended June 30, 2017 Extended maturity $ 273 Total $ 273 The Company generally considers a loan to have defaulted when it reaches 90 days past due. There were no loans that have been modified as TDRs during the past twelve months which have subsequently defaulted during during the three and six months ended June 30, 2018 and 2017 (unaudited). The impact of TDRs and subsequently defaulted TDRs did not have a material impact on the allowance for loan losses. Foreclosure Proceedings The Company had one consumer mortgage loan for $260,000 collateralized by residential real estate property that was in the process of foreclosure as of June 30, 2018 (unaudited). There were no consumer mortgage loans collateralized by residential real estate property in the process of foreclosure as of December 31, 2017.

TRANSFERS AND SERVICING

TRANSFERS AND SERVICING	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
TRANSFERS AND SERVICING	NOTE 5 – TRANSFERS AND SERVICING Certain residential mortgage loans are periodically sold by the Company to the secondary market. Generally, these loans are sold without recourse or other credit enhancements. The Company sells loans and both releases and retains the servicing rights. For loans sold with the servicing rights retained, we provide the servicing for the loans on a per-loan At June 30, 2018 (unaudited) and December 31, 2017, residential loans previously sold and serviced by the Company were $129.0 million and $114.5 million, respectively. At June 30, 2018 (unaudited) and December 31, 2017, indirect auto loans previously sold and serviced by the Company were $5.5 million and $10.5 million, respectively. Mortgage servicing rights (“MSR”) are initially recorded as an asset and measured at fair value when loans are sold to third parties with servicing rights retained. MSR assets are amortized in proportion to, and over the period of, estimated net servicing revenues. The carrying value of these assets is periodically reviewed for impairment using the lower of amortized cost or fair value methodology. The fair value of MSR are determined by estimating the present value of future net cash flows, taking into consideration market loan prepayment speeds, discount rates, servicing costs and other economic factors. For purposes of measuring impairment, the underlying loans are stratified into relatively homogeneous pools based on predominant risk characteristics which include product type (i.e., fixed or adjustable) and interest rate bands. If the aggregate carrying value of the capitalized MSR for a stratum exceeds its fair value, MSR impairment is recognized in earnings through a valuation allowance for the difference. As the loans are repaid and net servicing revenue is earned, the MSR asset is amortized as an offset to loan servicing income. Servicing revenues are expected to exceed this amortization expense. However, if actual prepayment experience or defaults exceed what was originally anticipated, net servicing revenues may be less than expected and MSR may become impaired. No servicing assets or liabilities related to auto loans were recorded, as the contractual servicing fees are adequate to compensate the Company for its servicing responsibilities. Changes in MSR, which are included in other assets, were as follows (in thousands): Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (unaudited) (unaudited) Balance at beginning of period $ 1,053 $ 414 $ 855 $ 403 Capitalization 5 180 213 185 Amortization (49 ) (27 ) (98 ) (51 ) Valuation allowance adjustment 8 17 47 47 Balance at end of period $ 1,017 $ 584 $ 1,017 $ 584

SECURITIES SOLD UNDER AGREEMENT

SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE AND OTHER BORROWED FUNDS	6 Months Ended
	Jun. 30, 2018
Brokers and Dealers [Abstract]
SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE AND OTHER BORROWED FUNDS	NOTE 6 – SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE AND OTHER BORROWED FUNDS The securities sold under agreements to repurchase as of June 30, 2018 (unaudited) and December 31, 2017 are securities sold on a short-term basis by the Company that have been accounted for not as sales but as secured borrowings. The securities consisted of mortgage-backed securities issued by a U.S. government sponsored entity. The securities were held in the Company’s safekeeping account at the Federal Home Loan Bank (“FHLB”) of Boston under the control of the Company. The securities are pledged to the purchasers of the securities. The purchasers have agreed to sell to the Company identical securities at the maturity of the agreements. The balance of securities sold under agreements to repurchase as of June 30, 2018 (unaudited) and December 31, 2017 was $4.0 million and $3.3 million, respectively.

EMPLOYEE AND DIRECTOR BENEFIT P

EMPLOYEE AND DIRECTOR BENEFIT PLANS	6 Months Ended
	Jun. 30, 2018
Retirement Benefits [Abstract]
EMPLOYEE AND DIRECTOR BENEFIT PLANS	NOTE 7 – EMPLOYEE AND DIRECTOR BENEFIT PLANS Belmont Savings Bank Supplemental Executive Retirement Plan The purpose of the Belmont Savings Bank Supplemental Executive Retirement Plan is to remain competitive with our peers in our compensation arrangements and to help us retain certain executive officers of the Company. At June 30, 2018 (unaudited) and December 31, 2017, there were four participants in the Plan. Participants are fully vested after the completion of between five and ten years of service. The plan is unfunded. The estimated liability at June 30, 2018 (unaudited) and December 31, 2017 relating to this plan was $2.0 million and $1.8 million, respectively. Other Supplemental Retirement Plans The Company has supplemental retirement plans for eligible executive officers that provide for a lump sum benefit upon termination of employment at or after age 55 and completing 10 or more years of service (certain reduced benefits are available prior to attaining age 55 or fewer than 10 years of service), subject to certain limitations as set forth in the agreements. The present value of these future payments is being accrued over the service period. The estimated liability at June 30, 2018 (unaudited) and December 31, 2017 relating to these plans was $2.7 million and $2.6 million, respectively. The Company has a supplemental retirement plan for eligible directors that provides for monthly benefits based upon years of service to the Company, subject to certain limitations as set forth in the agreements. The present value of these future payments is being accrued over the estimated period of service. The estimated liability at June 30, 2018 (unaudited) and December 31, 2017 relating to this plan was $696,000 and $697,000, respectively. Incentive Compensation Plan The Incentive Compensation Plan is a discretionary annual cash-based incentive plan that is an integral part of the participant’s total compensation package and supports the continued growth, profitability and risk management of the Company. Each year participants are awarded for the achievement of certain performance objectives on a company-wide and individual basis. Compensation expense recognized was $501,000 and $461,000 for the three months ended June 30, 2018 and 2017 (unaudited), respectively and $1.1 million and $973,000 for the six months ended June 30, 2018 and 2017 (unaudited), respectively. The liability at June 30, 2018 (unaudited) and December 31, 2017 was $1.1 million and $2.1 million, respectively. Defined Contribution Plan The Company sponsors a 401(k) plan covering substantially all employees meeting certain eligibility requirements. Under the provisions of the plan, employees are able to contribute up to an annual limit of the lesser of 75% of eligible compensation or the maximum allowed by the Internal Revenue Service. The Company’s contributions for the three months ended June 30, 2018 and 2017 (unaudited) totaled $245,000 and $210,000, respectively, and $498,000 and $453,000 for the six months ended June 30, 2018 and 2017 (unaudited), respectively. Deferred Compensation Plan The Company has a compensation deferral plan by which selected employees and directors of the Company are entitled to elect, prior to the beginning of each year, to defer the receipt of an amount of their compensation for the forthcoming year. Each agreement allows for the individual to elect to defer a portion of his or her compensation to an individual deferred compensation account established by the Company. In April 2013, the Company created a Rabbi Trust, or grantor trust. The Rabbi Trust is maintained by the Company primarily for purposes of holding deferred compensation for certain directors and employees of the Company. The plan is administered by a third party and permits participants to select from a number of investment options for the investment of their account balances. Each participant is always 100% vested in his or her deferred compensation account balance. As of June 30, 2018 (unaudited) and December 31, 2017, the recorded liability relating to the deferred compensation plan was $2.8 million. Employee Stock Ownership Plan The Company maintains an Employee Stock Ownership Plan (“ESOP”) to provide eligible employees the opportunity to own Company stock. This plan is a tax-qualified The Company contributed funds to a subsidiary to enable it to grant a loan to the ESOP for the purchase of 458,643 shares of the Company’s common stock at a price of $10.00 per share. The loan obtained by the ESOP from the Company’s subsidiary to purchase Company common stock is payable annually over 30 years at a rate per annum equal to the Prime Rate on the first business day of each calendar year (4.5% for 2018, unaudited). Loan payments are principally funded by cash contributions from the Bank. The loan is secured by the shares purchased, which are held in a suspense account for allocation among participants as the loan is repaid. Cash dividends paid on allocated shares are distributed to participants and cash dividends paid on unallocated shares are used to repay the outstanding debt of the ESOP. Shares used as collateral to secure the loan are released and available for allocation to eligible employees as the principal and interest on the loan is paid. The Company incurred expenses of $126,000 and $111,000 for the three months ended June 30, 2018 and 2017 (unaudited), respectively, and $241,000 and $218,000 for the six months ended June 30, 2018 and 2017 (unaudited), respectively. Severance Agreements The Company has entered into employment agreements and change in control agreements with certain executive officers which would provide the executive officers with severance payments based on salary, and the continuation of other benefits, upon a change in control as defined in the agreements.

PLEDGED ASSETS

PLEDGED ASSETS	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
PLEDGED ASSETS	NOTE 8 – PLEDGED ASSETS The following securities and loans were pledged to secure securities sold under agreements to repurchase, FHLB advances and letters of credit and credit facilities available (in thousands): June 30, 2018 (unaudited) Securities held to Loans Total pledged Repurchase agreements $ 6,143 $ — $ 6,143 FHLB borrowings 44,783 1,663,046 1,707,829 Federal Reserve Bank line of credit 8,801 — 8,801 Total pledged assets $ 59,727 $ 1,663,046 $ 1,722,773 December 31, 2017 Securities held to Loans Total pledged Repurchase agreements $ 5,582 $ — $ 5,582 FHLB borrowings 47,666 1,406,483 1,454,149 Federal Reserve Bank line of credit 15,780 — 15,780 Total pledged assets $ 69,028 $ 1,406,483 $ 1,475,511

EARNINGS PER SHARE

EARNINGS PER SHARE	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
EARNINGS PER SHARE	NOTE 9 – EARNINGS PER SHARE Basic earnings per share (“EPS”) excludes dilution and is calculated by dividing net income allocated to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Diluted EPS is computed in a manner similar to that of basic EPS except that the weighted-average number of common shares outstanding is increased to include the number of incremental common shares (computed using the treasury stock method) that would have been outstanding if all potentially dilutive common stock equivalents (such as stock options and unvested restricted stock not meeting the definition of a participating security) were issued during the period. Earnings per share consisted of the following components for the periods indicated (unaudited and dollars in thousands except per share data): Three months ended Six months ended 2018 2017 2018 2017 Net income $ 6,068 $ 4,012 $ 12,078 $ 7,678 Undistributed earnings attributable to participating securities (1 ) (33 ) (2 ) (64 ) Net income allocated to common stockholders $ 6,067 $ 3,979 $ 12,076 $ 7,614 Weighted average shares outstanding, basic 8,948,092 8,754,917 8,917,697 8,715,635 Effect of dilutive shares 452,904 429,742 452,640 415,744 Weighted average shares outstanding, assuming dilution 9,400,996 9,184,659 9,370,337 9,131,379 Basic EPS $ 0.68 $ 0.45 $ 1.35 $ 0.87 Effect of dilutive shares (0.03 ) (0.02 ) (0.06 ) (0.04 ) Diluted EPS $ 0.65 $ 0.43 $ 1.29 $ 0.83 There were no options to purchase shares of common stock outstanding and not included in the computation of EPS because they were antidilutive under the treasury stock method during the three and six months ended June 30, 2018 and 2017 (unaudited). Unallocated common shares held by the ESOP are shown as a reduction in stockholders’ equity and are not included in the weighted-average number of common shares outstanding for either basic or diluted earnings per share calculations. On June 22, 2013, the Company’s Board of Directors authorized a program to repurchase, from time-to-time

STOCK BASED COMPENSATION

STOCK BASED COMPENSATION	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK BASED COMPENSATION	NOTE 10 – STOCK BASED COMPENSATION On February 8, 2017, the stockholders of the Company approved the Company’s 2017 Equity Incentive Plan (“the Plan”). On March 15, 2017, 487,200 restricted stock awards were granted under the Plan. The shares had a grant date fair value of $27.10 per share and vest over ten years with an estimated forfeiture rate of 2.64%. The awards are not deemed to be participating securities. On April 23, 2018, 3,898 restricted stock awards were granted under the Plan. The shares had a grant date fair value of $32.30 and vest over ten years with an estimated forfeiture rate of 2.27%. The awards are not deemed to be participating securities. The following table presents the pre-tax Three months ended Six months ended 2018 2017 2018 2017 Stock options $ 23 $ 196 $ 45 $ 385 Restricted stock awards 327 539 657 807 Total stock based compensation expense $ 350 $ 735 $ 702 $ 1,192 Related tax benefits recognized in earnings $ 92 $ 254 $ 186 $ 397 The adoption of ASU 2016-09 paid-in Three months ended 2018 2017 After tax benefits recognized in net income $ 18 $ 63 Six months 2018 2017 After tax benefits recognized in net income $ 127 $ 781 Total unrecognized compensation cost related to non-vested As of June 30, 2018 (unaudited) Amount Weighted Stock options $ 95 2.21 Restricted stock 10,171 8.71 Total $ 10,266

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	NOTE 11 – FAIR VALUE MEASUREMENTS Determination of Fair Value The fair value of an asset or liability 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. The Company uses prices and inputs that are current as of the measurement date, including during periods of market dislocation. In periods of market dislocation, the observability of prices and inputs may be reduced for many instruments. This condition could cause an instrument to be reclassified from one level to another. 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 the present value of cash flows or other valuation techniques. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The Company groups its assets and liabilities measured at fair value into three levels, based on the markets in which the assets and liabilities are traded and the observability and reliability of the assumptions used to determine fair value. Level 1 - Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 - Level 2 inputs are inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 - Level 3 inputs are unobservable inputs for the asset or liability. For assets and liabilities, the fair value level is based upon the lowest level of input that is significant to the fair value measurement. In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon models that primarily use, as inputs, observable market based parameters. The Company’s valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While management believes the Company’s valuation methodologies are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date. Furthermore, the reported fair value amounts have not been comprehensively revalued since the presentation dates, and therefore, estimates of fair value after the consolidated balance sheet date may differ significantly from the amounts presented herein. A more detailed description of the valuation methodologies used for assets and liabilities measured at fair value is set forth below. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. These valuation methodologies were applied to all of the Company’s financial assets and financial liabilities carried at fair value for June 30, 2018 (unaudited) and December 31, 2017. There were no significant transfers between the levels of the fair value hierarchy during the three and six months ended June 30, 2018 (unaudited) and the year ended December 31, 2017. Financial Assets and Financial Liabilities: Investment Securities Available-for-Sale Investments held in the Rabbi Trust non-qualified Derivatives participation-out The fair value of the interest rate cap is determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates rise above the strike rate of the contract (caps). The variable interest rates used in the calculation of projected receipts on the cap are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities. The fair values for the loan level derivatives are based on settlement values adjusted for credit risks associated with the counterparties and the Company and observable market interest rate curves. Credit risk adjustments consider factors such as the likelihood of default by the Company and its counterparties, its net exposures and remaining contractual life. To date, the Company has not realized any losses due to a counterparty’s inability to pay any net uncollateralized position. To comply with the provisions of ASC 820, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees. The Company had no derivative assets or liabilities as of December 31, 2017. A majority of the inputs used to value the Company’s derivatives fall within Level 2 of the fair value hierarchy. Any related credit value adjustments generally utilize Level 3 inputs such as estimates of credit spreads. However, as of June 30, 2018 (unaudited), the Company has assessed the valuation methodology of these derivatives and determined that the credit valuation adjustments do not materially impact the overall valuation of the derivative positions; accordingly, the Company classifies these instruments entirely within Level 2 of the fair value hierarchy. The following table summarizes financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 (unaudited) and December 31, 2017, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands): Level 1 Level 2 Level 3 Total At June 30, 2018 (unaudited) Assets: Securities available for sale Corporate debt securities $ — $ 4,042 $ — $ 4,042 Trading securities Rabbi trust investments 2,837 — — 2,837 Derivatives: Interest rate cap — 1,446 — 1,446 Interest rate swaps — 905 — 905 Risk participation-out — 16 — 16 Totals $ 2,837 $ 6,409 $ — $ 9,246 Liabilities: Derivatives: Interest rate swaps $ — $ 966 $ — $ 966 $ — $ 966 $ — $ 966 Level 1 Level 2 Level 3 Total At December 31, 2017 Securities available for sale Corporate debt securities $ — $ 16,921 $ — $ 16,921 Trading securities Rabbi trust investments 2,808 — — 2,808 Totals $ 2,808 $ 16,921 $ — $ 19,729 Certain financial assets and financial liabilities are measured at fair value on a nonrecurring basis; that is, the instruments are not measured at fair value on an ongoing basis but are subject to fair value adjustments in certain circumstances (for example, when there is evidence of impairment). Financial assets measured at fair value on a non-recurring a non-recurring basis a non-recurring basis. There were no impaired loans that were re-measured The following table (in thousands) presents loans held-for-sale at June 30, 2018 Level 1 Level 2 Level 3 Loans held for sale $ — $ — $ 4,104 Totals $ — $ — $ 4,104 December 31, 2017 Level 1 Level 2 Level 3 Loans held for sale $ — $ — $ — Totals $ — $ — $ — Non-Financial Non-Financial non-financial non-financial Non-financial non-recurring re-measured The following table (in thousands) presents the non-financial re-measured June 30, 2018 Level 1 Level 2 Level 3 (unaudited) Mortgage servicing rights $ — $ — $ 1,017 Totals $ — $ — $ 1,017 December 31, 2017 Level 1 Level 2 Level 3 Mortgage servicing rights $ — $ — $ 855 Totals $ — $ — $ 855 ASC Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring non-recurring 2016-01 Summary of Fair Values of Financial Instruments not Carried at Fair Value The estimated fair values, and related carrying or notional amounts, of the Company’s financial instruments are as follows (in thousands): June 30, 2018 Carrying Fair Amount Value Level 1 Level 2 Level 3 (unaudited) Financial assets: Cash and cash equivalents $ 103,702 $ 103,702 $ 103,702 $ — $ — Interest-bearing time deposits with other banks 2,415 2,415 — 2,415 — Held-to-maturity 153,654 149,932 — 149,932 — Federal Home Loan Bank stock 40,082 40,082 — 40,082 — Loans, net 2,539,318 2,440,843 — — 2,440,843 Accrued interest receivable 6,950 6,950 6,950 — — Bank-owned life insurance 37,496 37,496 — 37,496 — Financial liabilities: Deposits 1,833,863 1,828,030 1,251,620 576,410 — Federal Home Loan Bank advances 855,250 849,207 — 849,207 — Securities sold under agreements to repurchase 3,999 3,999 — 3,999 — Accrued interest payable 2,004 2,004 2,004 — — Mortgagors’ escrow accounts 6,444 6,444 — 6,444 — December 31, 2017 Carrying Fair Amount Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 110,888 $ 110,888 $ 110,888 $ — $ — Interest-bearing time deposits with other banks 2,440 2,440 — 2,440 — Held-to-maturity 160,090 158,385 — 158,385 — Federal Home Loan Bank stock 32,382 32,382 — 32,382 — Loans, net 2,296,958 2,251,971 — — 2,251,971 Accrued interest receivable 6,344 6,344 6,344 — — Bank-owned life insurance 36,967 36,967 — 36,967 — Financial liabilities: Deposits 1,751,251 1,748,995 1,246,537 502,458 — Federal Home Loan Bank advances 723,150 719,430 — 719,430 — Securities sold under agreements to repurchase 3,268 3,268 — 3,268 — Accrued interest payable 1,594 1,594 1,594 — — Mortgagors’ escrow accounts 4,690 4,690 — 4,690 — The financial instruments in the tables above are included in the consolidated balance sheets under the indicated captions except for mortgagors’ escrow accounts which are included in other liabilities.

OTHER COMPREHENSIVE INCOME (LOS

OTHER COMPREHENSIVE INCOME (LOSS)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
OTHER COMPREHENSIVE INCOME (LOSS)	NOTE 12 – OTHER COMPREHENSIVE INCOME (LOSS) The following table presents a reconciliation of the changes in the components of other comprehensive income (loss) for the dates indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss): Three months ended June 30, 2018 Three months ended June 30, 2017 (unaudited and in thousands) (unaudited and in thousands) Pre Tax Tax Benefit After Tax Pre Tax Tax After Tax Amount (Expense) Amount Amount Benefit Amount Securities available-for-sale: Change in fair value of securities available-for-sale $ (18 ) $ 5 $ (13 ) $ (5 ) $ 2 $ (3 ) Cash flow hedges: Net change in fair value of cash flow hedges 101 (28 ) 73 — — — Total other comprehensive income (loss) $ 83 $ (23 ) $ 60 $ (5 ) $ 2 $ (3 ) Six months ended June 30, 2018 Six months ended June 30, 2017 (unaudited and in thousands) (unaudited and in thousands) Pre Tax Tax After Tax Pre Tax Tax After Tax Amount Benefit Amount Amount Expense Amount Securities available-for-sale: Change in fair value of securities available-for-sale $ (96 ) $ 28 $ (68 ) $ 108 $ (44 ) $ 64 Cash flow hedges: Net change in fair value of cash flow hedges (79 ) 22 (57 ) — — — Total other comprehensive (loss) income $ (175 ) $ 50 $ (125 ) $ 108 $ (44 ) $ 64 The components of accumulated other comprehensive (loss) income, included in stockholders’ equity, are as follows: (in thousands): June 30, 2018 December 31, 2017 (unaudited) Net unrealized holding loss on available-for-sale $ (108 ) $ (32 ) Unrecognized benefit pertaining to defined benefit plan, net of tax 148 121 Net unrealized holding loss on cash flow hedges, net of tax (57 ) — Accumulated other comprehensive (loss) income $ (17 ) $ 89 Accumulated other comprehensive income at December 31, 2017 included $19,000 related to stranded amounts resulting from the re-measurement of ASU 2018-02, that 2018-02

DERIVATIVE FINANCIAL INSTRUMENT

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES	NOTE 13 – DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES Risk Management Objective of Using Derivatives The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk, primarily by managing the amount, sources, and duration of its assets and liabilities and through the use of derivative financial instruments when deemed appropriate. The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company has purchased an interest rate cap and entered into certain interest rate swap contracts and risk participation-out up-front Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate such customers’ respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. Additionally, the Company has risk participation agreements with other banks. Risk participation agreements occur when the Company participates out a portion of the loan and the related swap to another bank or participates in a loan and related swap where another bank is the lead. With a risk participation out, the Company pays another bank to take on the risk associated with the participant bank’s pro-rata pro-rata The Company recognizes its derivative instruments on the consolidated balance sheet at fair value. On the date the derivative instrument is entered into, the Company designates whether the derivative is part of a hedging relationship (i.e. cash flow or fair value hedge). The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking hedging transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivative instruments used in hedging transactions are highly effective in offsetting the changes in cash flows or fair values of hedged items. Changes in the fair value of derivative instruments that are highly effective and qualify as cash flow hedges are recorded in other comprehensive income, net of tax. Any ineffective portion is recorded in earnings. The Company discontinues hedge accounting when it is determined that the derivative instrument is no longer effective in offsetting changes of the hedged risk on the hedged item, or management determines that the designation of the derivative instrument as a hedging instrument is no longer appropriate. Included in loan level derivative income within the consolidated statements of operations is interest rate swap fee income received from dealer counterparties net of fees paid to third party advisors as well as the change in the fair values of interest rate swaps and risk participation agreements. Cash Flow Hedges of Interest Rate Risk In March of 2018, a $100 million notional interest rate cap agreement was purchased to limit the Company’s exposure to rising interest rates related to $100 million of rolling, three-month FHLB advances. Under the terms of the agreement, the Company paid a premium of $1.5 million for the right to receive cash flow payments if 3-month The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheet as of the periods presented (in thousands): Fair Value of Derivative Instruments Asset Derivatives June 30, 2018 (unaudited) December 31, 2017 Number of Notional Amount Balance Sheet Fair Value Number of Notional Balance Sheet Fair Value Derivatives designated as hedging instruments: Interest rate cap 1 $ 100,000 Other Assets $ 1,446 — $ — Other Assets $ — Total derivatives designated as hedging instruments $ 1,446 $ — Derivatives not designated as hedging instruments: Interest Rate Swaps - Commerical Loan Customers 4 $ 54,370 Other Assets $ 905 — $ — Other Assets $ — Risk Participation-Out 3 $ 6,340 Other Assets 16 — $ — Other Assets — Total derivatives not designated as hedging instruments $ 921 $ — Fair Value of Derivative Instruments Liability Derivatives June 30, 2018 (unaudited) December 31, 2017 Number of Notional Amount Balance Sheet Fair Value Number of Notional Balance Sheet Fair Value Derivatives not designated as hedging instruments: Interest Rate Swaps - Third Party Financial Institution 4 $ 54,370 Other Liabilities $ 966 — $ — Other Liabilities $ — Total derivatives not designated as hedging instruments $ 966 $ — The following table presents the effect of the Company’s derivative financial instruments included in other comprehensive income and reclassifications into earnings for the periods indicated: Amount of Gain (Loss) Recognized in Other Location of Gain (Loss) Income into Income Amount of Gain (Loss) Reclassified from into Income Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ 101 $ — Interest expense $ — $ — Total $ 101 $ — $ — $ — Amount of Gain (Loss) Recognized in Other Location of Gain (Loss) Amount of Gain (Loss) Reclassified from Income Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ (79 ) $ — Interest expense $ — $ — Total $ (79 ) $ — $ — $ — The following table presents the effect of the Company’s derivative financial instruments included in current earnings for the periods indicated: Location of Gain (Loss) Recognized in Income on Amount of Gain (Loss) Recognized in Income on Derivative Instruments Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Unaudited) (Unaudited) Interest Rate Swaps Loan level derivative income $ (61 ) $ — Risk Participation-Out Loan level derivative income (16 ) — Total $ (77 ) $ — Location of Gain (Loss) Recognized in Income on Amount of Gain (Loss) Recognized in Income on Derivative Instruments Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Unaudited) (Unaudited) Interest Rate Swaps Loan level derivative income $ (61 ) $ — Risk Participation-Out Loan level derivative income (16 ) — Total $ (77 ) $ — Certain derivative agreements contain provisions that require the Company or the third party financial institution to post collateral if the derivative exposure exceeds a certain threshold. The Company has not posted collateral in connection with this arrangement as of June 30, 2018 (unaudited); however, the third party financial institution posted $740,000 of cash collateral on deposit with the Bank. The Company has agreements with certain of its derivative counterparties that contain credit-risk-related contingent provisions. These provisions provide the counterparty with the right to terminate its derivative positions and require the Company to settle its obligations under the agreements if the Company defaults on certain of its indebtedness or if the Company fails to maintain its status as a well-capitalized institution. Counterparty Credit Risk.

BALANCE SHEET OFFSETTING

BALANCE SHEET OFFSETTING	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
BALANCE SHEET OFFSETTING	NOTE 14 – BALANCE SHEET OFFSETTING Certain financial instruments, including derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Our derivative transactions with upstream financial institution counterparties are generally executed under International Swaps and Derivative Association (“ISDA”) master agreements which include “right of set-off” The following tables present the Company’s asset and liability derivative positions and repurchase agreements and the potential effect of netting arrangements on its financial position, as of the periods indicated: June 30, 2018 (in Thousands and Unaudited) Gross Amounts Not Offset in the Statement Gross Amounts of Gross Amounts Offset in Net Amounts of Assets Financial Collateral Pledged Net Derivative Assets $ 2,367 $ — $ 2,367 $ 966 $ (481 ) $ 920 Gross Amounts Not Offset in the Statement Gross Amounts of Gross Amounts Offset in Net Amounts of Liabilities Financial Collateral Pledged Net Derivative Liabilities $ 966 $ — $ 966 $ 966 $ — $ — Securities sold under agreements to repurchase $ 3,999 $ — $ 3,999 $ — $ 3,999 $ — December 31, 2017 (in Thousands) Gross Amounts Not Offset in the Statement of Gross Amounts of Gross Amounts Offset Net Amounts of Liabilities Financial Cash Collateral Net Securities sold under agreements to repurchase $ 3,268 $ — $ 3,268 $ — $ 3,268 $ —

INVESTMENTS IN SECURITIES (Tabl

INVESTMENTS IN SECURITIES (Tables)	6 Months Ended
	Jun. 30, 2018
Investments, Debt and Equity Securities [Abstract]
Amortized Cost Basis and Fair Value of Available for Sale and Held-to-Maturity Securities	The amortized cost basis of available-for-sale held-to-maturity June 30, 2018 December 31, 2017 Amortized Gross Gross Amortized Gross Gross Cost Unrealized Unrealized Fair Cost Unrealized Unrealized Fair Basis Gains Losses Value Basis Gains Losses Value (unaudited) Available-for-sale Corporate debt securities $ 4,192 $ — $ (150 ) $ 4,042 $ 16,975 $ 24 $ (78 ) $ 16,921 $ 4,192 $ — $ (150 ) $ 4,042 $ 16,975 $ 24 $ (78 ) $ 16,921 Held-to-maturity U.S. government sponsored mortgage-backed securities $ 142,919 $ 92 $ (3,720 ) $ 139,291 $ 142,383 $ 145 $ (2,089 ) $ 140,439 Corporate debt securities 10,735 10 (104 ) 10,641 17,707 239 — 17,946 $ 153,654 $ 102 $ (3,824 ) $ 149,932 $ 160,090 $ 384 $ (2,089 ) $ 158,385
Amortized Cost Basis and Estimated Fair Value of Debt Securities by Contractual Maturity	The amortized cost basis and estimated fair value of debt securities by contractual maturity at June 30, 2018 is as follows (in thousands and unaudited). Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. June 30, 2018 Available-for-Sale Held-to-Maturity Amortized Fair Amortized Fair Cost Basis Value Cost Basis Value (unaudited) (unaudited) Due within one year $ — $ — $ — $ — Due after one year through five years 4,192 4,042 12,401 12,243 Due after five years through ten years — — 32,332 31,248 Due after ten years — — 108,921 106,441 $ 4,192 $ 4,042 $ 153,654 $ 149,932
Securities with Gross Unrealized Losses Aggregated by Investment Category and Length of Time	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 is as follows (in thousands): Less than 12 Months Over 12 Months # of Fair Unrealized Fair Unrealized Holdings Value Losses Value Losses June 30, 2018 (unaudited): Available-for-sale Corporate debt securities 1 $ — $ — $ 4,042 $ (150 ) Held-to-maturity Corporate debt securities 2 7,730 (104 ) — — U.S. government sponsored mortgage-backed securities 83 51,683 (1,034 ) 74,738 (2,686 ) Total temporarily impaired securities 86 $ 59,413 $ (1,138 ) $ 78,780 $ (2,836 ) December 31, 2017: Available-for-sale Corporate debt securities 1 $ — $ — $ 4,144 $ (78 ) Held-to-maturity U.S. government sponsored mortgage-backed securities 81 64,056 (718 ) 62,798 (1,371 ) Total temporarily impaired securities 82 $ 64,056 $ (718 ) $ 66,942 $ (1,449 )

LOANS, ALLOWANCE FOR LOAN LOS23

LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Tables)	6 Months Ended
	Jun. 30, 2018
Receivables [Abstract]
Summary of Loans	Loans consisted of the following (dollars in thousands): June 30, 2018 December 31, 2017 Amount Percent Amount Percent (unaudited) Mortgage loans: Residential one-to-four $ 1,520,873 59.79 % $ 1,333,058 57.93 % Commercial real estate loans 544,347 21.40 486,392 21.13 Multi-family real estate loans 185,000 7.27 155,680 6.77 Home equity lines of credit 171,741 6.75 178,624 7.76 Construction loans 38,460 1.51 53,045 2.31 Total mortgage loans 2,460,421 96.72 2,206,799 95.90 Commercial loans 63,215 2.48 63,722 2.77 Consumer loans: Indirect auto loans 19,804 0.78 30,227 1.31 Other consumer loans 408 0.02 435 0.02 83,427 3.28 94,384 4.10 Total loans 2,543,848 100.00 % 2,301,183 100.00 % Net deferred loan costs 3,501 3,426 Net unamortized mortgage premiums 9,265 8,661 Allowance for loan losses (17,296 ) (16,312 ) Total loans, net $ 2,539,318 $ 2,296,958
Activity in Allowance for Loan Losses by Portfolio Class and Balances of Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Class	The following tables (in thousands) present the activity in the allowance for loan losses by portfolio class for the three and six months ended June 30, 2018 and 2017 (unaudited); and the balances of the allowance for loan losses and recorded investment in loans by portfolio class based on impairment method at June 30, 2018 (unaudited) and December 31, 2017. The recorded investment in loans in any of the following tables does not include accrued and unpaid interest, any deferred loan fees or costs or any premiums, as the amounts are not significant. Three Months Ended June 30, 2018 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 6,584 $ 560 $ — $ — $ 7,144 Commercial real estate 5,148 538 — — 5,686 Multi-family real estate 1,820 (248 ) — — 1,572 Home equity lines of credit 950 (109 ) — — 841 Construction 458 92 — — 550 Commercial 789 (101 ) — — 688 Indirect auto 193 (33 ) (16 ) 2 146 Other consumer 5 — — — 5 Unallocated 637 27 — — 664 Total $ 16,584 $ 726 $ (16 ) $ 2 $ 17,296 Three Months Ended June 30, 2017 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 5,223 $ 441 $ — $ — $ 5,664 Commercial real estate 3,924 398 — — 4,322 Multi-family real estate 1,326 (36 ) — — 1,290 Home equity lines of credit 1,011 13 — — 1,024 Construction 1,297 (144 ) — — 1,153 Commercial 713 5 — — 718 Indirect auto 335 1 (9 ) 12 339 Other consumer 8 2 (4 ) 1 7 Unallocated 545 27 — — 572 Total $ 14,382 $ 707 $ (13 ) $ 13 $ 15,089 Six Months Ended June 30, 2018 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 6,400 $ 744 $ — $ — $ 7,144 Commercial real estate 4,979 707 — — 5,686 Multi-family real estate 1,604 (32 ) — — 1,572 Home equity lines of credit 947 (106 ) — — 841 Construction 764 (214 ) — — 550 Commercial 758 (66 ) (4 ) — 688 Indirect auto 230 (73 ) (22 ) 11 146 Other consumer 9 (2 ) (3 ) 1 5 Unallocated 621 43 — — 664 Total $ 16,312 $ 1,001 $ (29 ) $ 12 $ 17,296 Six Months Ended June 30, 2017 Beginning balance Provision (benefit) Charge-offs Recoveries Ending balance Residential one-to-four $ 4,828 $ 836 $ — $ — $ 5,664 Commercial real estate 3,676 646 — — 4,322 Multi-family real estate 1,209 81 — — 1,290 Home equity lines of credit 1,037 (13 ) — — 1,024 Construction 1,219 (66 ) — — 1,153 Commercial 728 (10 ) — — 718 Indirect auto 362 1 (40 ) 16 339 Other consumer 9 6 (9 ) 1 7 Unallocated 517 55 — — 572 Total $ 13,585 $ 1,536 $ (49 ) $ 17 $ 15,089 June 30, 2018 Individually evaluated for impairment Collectively evaluated for impairment Total Loan balance Allowance Loan balance Allowance Loan balance Allowance Residential one-to-four $ 2,109 $ 6 $ 1,518,764 $ 7,138 $ 1,520,873 $ 7,144 Commercial real estate 2,851 — 541,496 5,686 544,347 5,686 Multi-family real estate — — 185,000 1,572 185,000 1,572 Home equity lines of credit 50 — 171,691 841 171,741 841 Construction — — 38,460 550 38,460 550 Commercial — — 63,215 688 63,215 688 Indirect auto 1 — 19,803 146 19,804 146 Other consumer — — 408 5 408 5 Unallocated — — — 664 — 664 Total $ 5,011 $ 6 $ 2,538,837 $ 17,290 $ 2,543,848 $ 17,296 December 31, 2017 Individually evaluated for impairment Collectively evaluated for impairment Total Loan balance Allowance Loan balance Allowance Loan balance Allowance Residential one-to-four $ 2,688 $ 147 $ 1,330,370 $ 6,253 $ 1,333,058 $ 6,400 Commercial real estate 2,877 — 483,515 4,979 486,392 4,979 Multi-family real estate — — 155,680 1,604 155,680 1,604 Home equity lines of credit — — 178,624 947 178,624 947 Construction — — 53,045 764 53,045 764 Commercial — — 63,722 758 63,722 758 Indirect auto 4 — 30,223 230 30,227 230 Other consumer — — 435 9 435 9 Unallocated — — — 621 — 621 Total $ 5,569 $ 147 $ 2,295,614 $ 16,165 $ 2,301,183 $ 16,312
Information about Loans that Meet Definition of Impaired Loan	Information about loans that meet the definition of an impaired loan under ASC 310-10-35 Impaired loans with a related allowance for credit losses at June 30, 2018 Unpaid Related Recorded Principal Allowance for Investment Balance Credit Losses Residential one-to-four $ 195 $ 195 $ 6 Totals $ 195 $ 195 $ 6 Impaired loans with no related allowance for for credit losses at June 30, 2018 Unpaid Recorded Principal Investment Balance Residential one-to-four $ 1,914 $ 2,028 Commercial real estate 2,851 2,851 Home equity lines of credit 50 50 Indirect auto 1 1 Totals $ 4,816 $ 4,930 Impaired loans with a related allowance for credit losses at December 31, 2017 Unpaid Related Recorded Principal Allowance for Investment Balance Credit Losses Residential one-to-four $ 725 $ 725 $ 147 Totals $ 725 $ 725 $ 147 Impaired loans with no related allowance for credit losses at December 31, 2017 Unpaid Recorded Principal Investment Balance Residential one-to-four $ 1,963 $ 2,052 Commercial real estate 2,877 2,877 Indirect auto 4 4 Totals $ 4,844 $ 4,933
Information regarding Interest Income Recognized on Impaired Loans	The following tables set forth information regarding interest income recognized on impaired loans, by portfolio segment, for the periods indicated (unaudited and in thousands): Three months ended June 30, 2018 Three months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income With an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 195 $ 2 $ 1,229 $ 8 Totals $ 195 $ 2 $ 1,229 $ 8 Three months ended June 30, 2018 Three months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income Without an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 1,923 $ 8 $ 1,767 $ 6 Commercial real estate 2,856 32 3,215 36 Home equity lines of credit 33 — 65 2 Indirect auto 3 — 7 — Totals $ 4,815 $ 40 $ 5,054 $ 44 Six months ended June 30, 2018 Six months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income With an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 283 $ 7 $ 1,066 $ 16 Totals $ 283 $ 7 $ 1,066 $ 16 Six months ended June 30, 2018 Six months ended June 30, 2017 Average Interest Average Interest Recorded Income Recorded Income Without an allowance recorded Investment Recognized Investment Recognized Residential one-to-four $ 1,936 $ 16 $ 1,953 $ 9 Commercial real estate 2,864 62 3,260 72 Home equity lines of credit 17 — 212 13 Indirect auto 5 — 8 — Totals $ 4,822 $ 78 $ 5,433 $ 94
Summary of Past Due and Non-Accrual Loans	The following is a summary of past due and non-accrual June 30, 2018 (unaudited) 90 days 90 Days Total or more Loans on 30–59 Days 60–89 Days or More Past Due and accruing Non-accrual Real estate loans: Residential one-to-four $ 2,008 $ 1 $ 260 $ 2,269 $ — $ 707 Home equity lines of credit 138 — — 138 — 50 Other loans: Indirect auto 246 56 1 303 — 1 Total $ 2,392 $ 57 $ 261 $ 2,710 $ — $ 758 December 31, 2017 90 days 90 Days Total or more Loans on 30–59 Days 60–89 Days or More Past Due and accruing Non-accrual Real estate loans: Residential one-to-four $ 711 $ — $ 260 $ 971 $ — $ 1,372 Home equity lines of credit 716 — — 716 — — Other loans: Indirect auto 347 30 4 381 — 4 Total $ 1,774 $ 30 $ 264 $ 2,068 $ — $ 1,376
Company's Loans by Risk Rating	The following tables present the Company’s loans by risk rating at June 30, 2018 (unaudited and in thousands) and December 31, 2017 (in thousands). There were no loans rated as 6 (“doubtful”) or 7 (“loss”) at the dates indicated. June 30, 2018 Loans rated 1-3.5 Loans rated 4 Loans rated 5 Loans not rated (A) Total Residential one-to-four $ — $ 339 $ 1,387 $ 1,519,147 $ 1,520,873 Commercial real estate 540,568 — 3,779 — 544,347 Multi-family real estate 185,000 — — — 185,000 Home equity lines of credit — — 49 171,692 171,741 Construction 38,460 — — — 38,460 Commercial 63,215 — — — 63,215 Indirect auto — — — 19,804 19,804 Other consumer — — — 408 408 Total $ 827,243 $ 339 $ 5,215 $ 1,711,051 $ 2,543,848 December 31, 2017 Loans rated 1-3.5 Loans rated 4 Loans rated 5 Loans not rated (A) Total Residential one-to-four $ — $ 344 $ 2,060 $ 1,330,654 $ 1,333,058 Commercial real estate 482,574 — 3,818 — 486,392 Multi-family real estate 155,680 — — — 155,680 Home equity lines of credit — — 772 177,852 178,624 Construction 53,045 — — — 53,045 Commercial 63,682 40 — — 63,722 Indirect auto — — — 30,227 30,227 Consumer — — — 435 435 Total $ 754,981 $ 384 $ 6,650 $ 1,539,168 $ 2,301,183 (A) Residential real estate and home equity lines of credit are not formally risk rated by the Company unless the loans become delinquent, impaired or are restructured as a TDR.
Trouble Debt Restructuring Accrual Status	The following table shows the Company’s total TDRs and other pertinent information as of the dates indicated (in thousands): June 30, 2018 December 31, 2017 (unaudited) TDRs on Accrual Status $ 4,253 $ 4,194 TDRs on Nonaccrual Status — 645 Total TDRs $ 4,253 $ 4,839 Amount of specific allocation included in the allowance for loan losses associated with TDRs $ 6 $ 147 Additional commitments to lend to a borrower who has been a party to a TDR $ — $ —
Troubled Debt Restructurings on Financing Receivables	The following tables show the TDR modifications which occurred during the three and six months ended June 30, 2017 and the change in the recorded investment subsequent to the modifications occurring (dollars in thousands and unaudited): Three months ended June 30, 2017 Pre-modification Post-modification # of outstanding outstanding Contracts recorded investment recorded investment Real estate loans: Commercial real estate loans 1 $ 273 $ 273 Total 1 $ 273 $ 273 Six months ended June 30, 2017 Pre-modification Post-modification # of outstanding outstanding Contracts recorded investment recorded investment Real estate loans: Commercial real estate loans 1 $ 273 $ 273 Total 1 $ 273 $ 273
Post Modification of Trouble Debt Restructuring Balance	The following table shows the Company’s post-modification balance of TDRs listed by type of modification during the three and six months ended June 30, 2017 (in thousands and unaudited): Three months ended June 30, 2017 Extended maturity $ 273 Total $ 273 Six months ended June 30, 2017 Extended maturity $ 273 Total $ 273

TRANSFERS AND SERVICING (Tables

TRANSFERS AND SERVICING (Tables)	6 Months Ended
	Jun. 30, 2018
Transfers and Servicing [Abstract]
Changes in MSR	Changes in MSR, which are included in other assets, were as follows (in thousands): Three months ended June 30, Six months ended June 30, 2018 2017 2018 2017 (unaudited) (unaudited) Balance at beginning of period $ 1,053 $ 414 $ 855 $ 403 Capitalization 5 180 213 185 Amortization (49 ) (27 ) (98 ) (51 ) Valuation allowance adjustment 8 17 47 47 Balance at end of period $ 1,017 $ 584 $ 1,017 $ 584

PLEDGED ASSETS (Tables)

PLEDGED ASSETS (Tables)	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
Securities and Loans Pledged to Secure Securities Sold Under Agreements to Repurchase, FHLB Advances and Credit Facilities Available	The following securities and loans were pledged to secure securities sold under agreements to repurchase, FHLB advances and letters of credit and credit facilities available (in thousands): June 30, 2018 (unaudited) Securities held to Loans Total pledged Repurchase agreements $ 6,143 $ — $ 6,143 FHLB borrowings 44,783 1,663,046 1,707,829 Federal Reserve Bank line of credit 8,801 — 8,801 Total pledged assets $ 59,727 $ 1,663,046 $ 1,722,773 December 31, 2017 Securities held to Loans Total pledged Repurchase agreements $ 5,582 $ — $ 5,582 FHLB borrowings 47,666 1,406,483 1,454,149 Federal Reserve Bank line of credit 15,780 — 15,780 Total pledged assets $ 69,028 $ 1,406,483 $ 1,475,511

EARNINGS PER SHARE (Tables)

EARNINGS PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Components of Earning Per Share	Earnings per share consisted of the following components for the periods indicated (unaudited and dollars in thousands except per share data): Three months ended Six months ended 2018 2017 2018 2017 Net income $ 6,068 $ 4,012 $ 12,078 $ 7,678 Undistributed earnings attributable to participating securities (1 ) (33 ) (2 ) (64 ) Net income allocated to common stockholders $ 6,067 $ 3,979 $ 12,076 $ 7,614 Weighted average shares outstanding, basic 8,948,092 8,754,917 8,917,697 8,715,635 Effect of dilutive shares 452,904 429,742 452,640 415,744 Weighted average shares outstanding, assuming dilution 9,400,996 9,184,659 9,370,337 9,131,379 Basic EPS $ 0.68 $ 0.45 $ 1.35 $ 0.87 Effect of dilutive shares (0.03 ) (0.02 ) (0.06 ) (0.04 ) Diluted EPS $ 0.65 $ 0.43 $ 1.29 $ 0.83

STOCK BASED COMPENSATION (Table

STOCK BASED COMPENSATION (Tables)	6 Months Ended
	Jun. 30, 2018
Pre-Tax Expense Associated with Stock Option and Restricted Stock Awards and Related Tax Benefits Recognized	The following table presents the pre-tax Three months ended Six months ended 2018 2017 2018 2017 Stock options $ 23 $ 196 $ 45 $ 385 Restricted stock awards 327 539 657 807 Total stock based compensation expense $ 350 $ 735 $ 702 $ 1,192 Related tax benefits recognized in earnings $ 92 $ 254 $ 186 $ 397
Unrecognized Compensation Cost Related to Non-Vested Awards and Weighted Average Recognition Period	Total unrecognized compensation cost related to non-vested As of June 30, 2018 (unaudited) Amount Weighted Stock options $ 95 2.21 Restricted stock 10,171 8.71 Total $ 10,266
Adoption of ASU 2016-09
Excess Tax Benefits Recognized from Stock Based Compensation	Excess tax benefits recognized from stock-based compensation for the periods indicated below are as follows (in thousands and unaudited): Three months ended 2018 2017 After tax benefits recognized in net income $ 18 $ 63 Six months 2018 2017 After tax benefits recognized in net income $ 127 $ 781

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2018
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 (unaudited) and December 31, 2017, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value (in thousands): Level 1 Level 2 Level 3 Total At June 30, 2018 (unaudited) Assets: Securities available for sale Corporate debt securities $ — $ 4,042 $ — $ 4,042 Trading securities Rabbi trust investments 2,837 — — 2,837 Derivatives: Interest rate cap — 1,446 — 1,446 Interest rate swaps — 905 — 905 Risk participation-out — 16 — 16 Totals $ 2,837 $ 6,409 $ — $ 9,246 Liabilities: Derivatives: Interest rate swaps $ — $ 966 $ — $ 966 $ — $ 966 $ — $ 966 Level 1 Level 2 Level 3 Total At December 31, 2017 Securities available for sale Corporate debt securities $ — $ 16,921 $ — $ 16,921 Trading securities Rabbi trust investments 2,808 — — 2,808 Totals $ 2,808 $ 16,921 $ — $ 19,729
Schedule of loans held-for-sale	The following table (in thousands) presents loans held-for-sale at June 30, 2018 Level 1 Level 2 Level 3 Loans held for sale $ — $ — $ 4,104 Totals $ — $ — $ 4,104 December 31, 2017 Level 1 Level 2 Level 3 Loans held for sale $ — $ — $ — Totals $ — $ — $ —
Schedule of Estimated Fair Values and Related Carrying or Notional Amounts of Financial Instruments	The estimated fair values, and related carrying or notional amounts, of the Company’s financial instruments are as follows (in thousands): June 30, 2018 Carrying Fair Amount Value Level 1 Level 2 Level 3 (unaudited) Financial assets: Cash and cash equivalents $ 103,702 $ 103,702 $ 103,702 $ — $ — Interest-bearing time deposits with other banks 2,415 2,415 — 2,415 — Held-to-maturity 153,654 149,932 — 149,932 — Federal Home Loan Bank stock 40,082 40,082 — 40,082 — Loans, net 2,539,318 2,440,843 — — 2,440,843 Accrued interest receivable 6,950 6,950 6,950 — — Bank-owned life insurance 37,496 37,496 — 37,496 — Financial liabilities: Deposits 1,833,863 1,828,030 1,251,620 576,410 — Federal Home Loan Bank advances 855,250 849,207 — 849,207 — Securities sold under agreements to repurchase 3,999 3,999 — 3,999 — Accrued interest payable 2,004 2,004 2,004 — — Mortgagors’ escrow accounts 6,444 6,444 — 6,444 — December 31, 2017 Carrying Fair Amount Value Level 1 Level 2 Level 3 Financial assets: Cash and cash equivalents $ 110,888 $ 110,888 $ 110,888 $ — $ — Interest-bearing time deposits with other banks 2,440 2,440 — 2,440 — Held-to-maturity 160,090 158,385 — 158,385 — Federal Home Loan Bank stock 32,382 32,382 — 32,382 — Loans, net 2,296,958 2,251,971 — — 2,251,971 Accrued interest receivable 6,344 6,344 6,344 — — Bank-owned life insurance 36,967 36,967 — 36,967 — Financial liabilities: Deposits 1,751,251 1,748,995 1,246,537 502,458 — Federal Home Loan Bank advances 723,150 719,430 — 719,430 — Securities sold under agreements to repurchase 3,268 3,268 — 3,268 — Accrued interest payable 1,594 1,594 1,594 — — Mortgagors’ escrow accounts 4,690 4,690 — 4,690 —
Non-financial Assets
Non Financial Assets Remeasured and Reported at Lower of Amortized Cost or Fair Value	The following table (in thousands) presents the non-financial re-measured June 30, 2018 Level 1 Level 2 Level 3 (unaudited) Mortgage servicing rights $ — $ — $ 1,017 Totals $ — $ — $ 1,017 December 31, 2017 Level 1 Level 2 Level 3 Mortgage servicing rights $ — $ — $ 855 Totals $ — $ — $ 855

OTHER COMPREHENSIVE INCOME (L29

OTHER COMPREHENSIVE INCOME (LOSS) (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedules of Other Comprehensive Income (Loss)	The following table presents a reconciliation of the changes in the components of other comprehensive income (loss) for the dates indicated, including the amount of income tax (expense) benefit allocated to each component of other comprehensive income (loss): Three months ended June 30, 2018 Three months ended June 30, 2017 (unaudited and in thousands) (unaudited and in thousands) Pre Tax Tax Benefit After Tax Pre Tax Tax After Tax Amount (Expense) Amount Amount Benefit Amount Securities available-for-sale: Change in fair value of securities available-for-sale $ (18 ) $ 5 $ (13 ) $ (5 ) $ 2 $ (3 ) Cash flow hedges: Net change in fair value of cash flow hedges 101 (28 ) 73 — — — Total other comprehensive income (loss) $ 83 $ (23 ) $ 60 $ (5 ) $ 2 $ (3 ) Six months ended June 30, 2018 Six months ended June 30, 2017 (unaudited and in thousands) (unaudited and in thousands) Pre Tax Tax After Tax Pre Tax Tax After Tax Amount Benefit Amount Amount Expense Amount Securities available-for-sale: Change in fair value of securities available-for-sale $ (96 ) $ 28 $ (68 ) $ 108 $ (44 ) $ 64 Cash flow hedges: Net change in fair value of cash flow hedges (79 ) 22 (57 ) — — — Total other comprehensive (loss) income $ (175 ) $ 50 $ (125 ) $ 108 $ (44 ) $ 64
Components of Accumulated Other Comprehensive (Loss) Income, included in Stockholders' Equity	The components of accumulated other comprehensive (loss) income, included in stockholders’ equity, are as follows: (in thousands): June 30, 2018 December 31, 2017 (unaudited) Net unrealized holding loss on available-for-sale $ (108 ) $ (32 ) Unrecognized benefit pertaining to defined benefit plan, net of tax 148 121 Net unrealized holding loss on cash flow hedges, net of tax (57 ) — Accumulated other comprehensive (loss) income $ (17 ) $ 89

DERIVATIVE FINANCIAL INSTRUME30

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Tables)	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Value of Derivative Financial Instruments	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheet as of the periods presented (in thousands): Fair Value of Derivative Instruments Asset Derivatives June 30, 2018 (unaudited) December 31, 2017 Number of Notional Amount Balance Sheet Fair Value Number of Notional Balance Sheet Fair Value Derivatives designated as hedging instruments: Interest rate cap 1 $ 100,000 Other Assets $ 1,446 — $ — Other Assets $ — Total derivatives designated as hedging instruments $ 1,446 $ — Derivatives not designated as hedging instruments: Interest Rate Swaps - Commerical Loan Customers 4 $ 54,370 Other Assets $ 905 — $ — Other Assets $ — Risk Participation-Out 3 $ 6,340 Other Assets 16 — $ — Other Assets — Total derivatives not designated as hedging instruments $ 921 $ — Fair Value of Derivative Instruments Liability Derivatives June 30, 2018 (unaudited) December 31, 2017 Number of Notional Amount Balance Sheet Fair Value Number of Notional Balance Sheet Fair Value Derivatives not designated as hedging instruments: Interest Rate Swaps - Third Party Financial Institution 4 $ 54,370 Other Liabilities $ 966 — $ — Other Liabilities $ — Total derivatives not designated as hedging instruments $ 966 $ —
Derivative Financial Instruments Included in Other Comprehensive Income and Reclassifications into Earnings	The following table presents the effect of the Company’s derivative financial instruments included in other comprehensive income and reclassifications into earnings for the periods indicated: Amount of Gain (Loss) Recognized in Other Location of Gain (Loss) Income into Income Amount of Gain (Loss) Reclassified from into Income Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ 101 $ — Interest expense $ — $ — Total $ 101 $ — $ — $ — Amount of Gain (Loss) Recognized in Other Location of Gain (Loss) Amount of Gain (Loss) Reclassified from Income Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Unaudited) (Unaudited) (Unaudited) (Unaudited) Derivatives in Cash Flow Hedging Relationships Interest Rate Products $ (79 ) $ — Interest expense $ — $ — Total $ (79 ) $ — $ — $ —
Effect of Derivative Financial Instruments included in Current Earnings	The following table presents the effect of the Company’s derivative financial instruments included in current earnings for the periods indicated: Location of Gain (Loss) Recognized in Income on Amount of Gain (Loss) Recognized in Income on Derivative Instruments Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 (Unaudited) (Unaudited) Interest Rate Swaps Loan level derivative income $ (61 ) $ — Risk Participation-Out Loan level derivative income (16 ) — Total $ (77 ) $ — Location of Gain (Loss) Recognized in Income on Amount of Gain (Loss) Recognized in Income on Derivative Instruments Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 (Unaudited) (Unaudited) Interest Rate Swaps Loan level derivative income $ (61 ) $ — Risk Participation-Out Loan level derivative income (16 ) — Total $ (77 ) $ —

BALANCE SHEET OFFSETTING (Table

BALANCE SHEET OFFSETTING (Tables)	6 Months Ended
	Jun. 30, 2018
Text Block [Abstract]
Asset and Liability Derivative Positions and Repurchase Agreements	The following tables present the Company’s asset and liability derivative positions and repurchase agreements and the potential effect of netting arrangements on its financial position, as of the periods indicated: June 30, 2018 (in Thousands and Unaudited) Gross Amounts Not Offset in the Statement Gross Amounts of Gross Amounts Offset in Net Amounts of Assets Financial Collateral Pledged Net Derivative Assets $ 2,367 $ — $ 2,367 $ 966 $ (481 ) $ 920 Gross Amounts Not Offset in the Statement Gross Amounts of Gross Amounts Offset in Net Amounts of Liabilities Financial Collateral Pledged Net Derivative Liabilities $ 966 $ — $ 966 $ 966 $ — $ — Securities sold under agreements to repurchase $ 3,999 $ — $ 3,999 $ — $ 3,999 $ — December 31, 2017 (in Thousands) Gross Amounts Not Offset in the Statement of Gross Amounts of Gross Amounts Offset Net Amounts of Liabilities Financial Cash Collateral Net Securities sold under agreements to repurchase $ 3,268 $ — $ 3,268 $ — $ 3,268 $ —

Recent Accounting Standards U32

Recent Accounting Standards Updates - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Accumulated Other Comprehensive Income (Loss)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income tax effects related to items stranded within AOCI from the Tax Cuts and Jobs Act	$ 19
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income tax effects related to items stranded within AOCI from the Tax Cuts and Jobs Act	(19)
Accounting Standards Update 2018-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income tax effects related to items stranded within AOCI from the Tax Cuts and Jobs Act	(19)
Accounting Standards Update 2018-02 | Accumulated Other Comprehensive Income (Loss)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income tax effects related to items stranded within AOCI from the Tax Cuts and Jobs Act	(19)
Accounting Standards Update 2018-02 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of income tax effects related to items stranded within AOCI from the Tax Cuts and Jobs Act	$ (19)

Available For Sale Securities (

Available For Sale Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale [Abstract]
Available-for-sale Securities, Amortized Cost Basis	$ 4,192	$ 16,921
Available-for-sale Securities, Gross Unrealized Gains		24
Available-for-sale Securities, Gross Unrealized Losses	(150)	(78)
Available-for-sale Securities, Fair Value	4,042	16,921
Corporate debt securities
Available-for-sale [Abstract]
Available-for-sale Securities, Amortized Cost Basis	4,192	16,921
Available-for-sale Securities, Gross Unrealized Gains		24
Available-for-sale Securities, Gross Unrealized Losses	(150)	(78)
Available-for-sale Securities, Fair Value	$ 4,042	$ 16,921

Held For Sale Securities (Detai

Held For Sale Securities (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Held-to-maturity securities[Abstract]
Held-to-maturity securities, Amortized Cost Basis	$ 153,654,000	$ 160,090,000
Held-to-maturity securities, Fair Value	149,932,000	158,385,000
Held-to-maturity Securities
Held-to-maturity securities[Abstract]
Held-to-maturity securities, Amortized Cost Basis	153,654		$ 160,090
Held-to-maturity securities, Gross Unrealized Gains	102		384
Held-to-maturity securities, Gross Unrealized Losses	(3,824)		(2,089)
Held-to-maturity securities, Fair Value	149,932		$ 158,385
Held-to-maturity Securities | U.S. government sponsored mortgage-backed securities
Held-to-maturity securities[Abstract]
Held-to-maturity securities, Amortized Cost Basis	142,919	142,383
Held-to-maturity securities, Gross Unrealized Gains	92
Held-to-maturity securities, Gross Unrealized Losses	(3,720)	(2,089)
Held-to-maturity securities, Fair Value	139,291	140,439
Held-to-maturity Securities | Corporate debt securities
Held-to-maturity securities[Abstract]
Held-to-maturity securities, Amortized Cost Basis	10,735	17,707
Held-to-maturity securities, Gross Unrealized Gains	10
Held-to-maturity securities, Gross Unrealized Losses	(104)
Held-to-maturity securities, Fair Value	$ 10,641	$ 17,946

Amortized Cost Basis and Estima

Amortized Cost Basis and Estimated Fair Value of Debt Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Due within one year, Available-for-sale Securities, Amortized Cost Basis	$ 0
Due after one year through five years, Available-for-sale Securities, Amortized Cost Basis	4,192
Due after five years through ten years, Available-for-sale Securities, Amortized Cost Basis	0
Due after ten years, Available-for-sale Securities, Amortized Cost Basis	0
Available-for-sale Securities, Amortized Cost Basis	4,192	$ 16,921
Due within one year, Available-for-sale Securities, Fair Value	0
Due after one year through five years, Available-for-sale Securities, Fair Value	4,042
Due after five years through ten years, Available-for-sale Securities, Fair Value	0
Due after ten years, Available-for-sale Securities, Fair Value	0
Available-for-sale Securities, Fair Value	4,042	16,921
Due within one year, Held-to-Maturity, Amortized Cost Basis	0
Due after one year through five years, Held-to-Maturity, Amortized Cost Basis	12,401
Due after five years through ten years, Held-to-Maturity, Amortized Cost Basis	32,332
Due after ten years, Held-to-Maturity, Amortized Cost Basis	108,921
Held-to-Maturity, Amortized Cost Basis	153,654	160,090
Due within one year, Held-to-Maturity, Fair Value	0
Due after one year through five years, Held-to-Maturity, Fair Value	12,243
Due after five years through ten years, Held-to-Maturity, Fair Value	31,248
Due after ten years, Held-to-Maturity, Fair Value	106,441
Held-to-Maturity, Fair Value	$ 149,932	$ 158,385

Investments in Securities - Add

Investments in Securities - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Entity	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)Entity	Jun. 30, 2017USD ($)	Dec. 31, 2017USD ($)Entity
Investment Securities [Line Items]
Proceeds from sales of available-for-sale securities	$ 0	$ 0	$ 0	$ 0
Number of securities that had unrealized losses | Entity	86		86		82
Securities that had unrealized losses, aggregate depreciation percentage	2.80%		2.80%		1.63%
Rabbi Trust
Investment Securities [Line Items]
Trading securities, fair value	$ 2,837,000		$ 2,837,000		$ 2,808,000
Trading securities, unrealized holding gain (loss)	$ 32,000	$ 38,000	$ 8,000	$ 83,000

Securities with Gross Unrealize

Securities with Gross Unrealized Losses Aggregated by Investment Category and Length of Time (Detail) $ in Thousands	Jun. 30, 2018USD ($)Entity	Dec. 31, 2017USD ($)Entity
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Holdings | Entity	86	82
Less than 12 Months, Fair Value	$ 59,413	$ 64,056
Less than 12 Months, Unrealized Losses	(1,138)	(718)
Over 12 Months, Fair Value	78,780	66,942
over 12 Months, Unrealized Losses	$ (2,836)	$ (1,449)
Corporate debt securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Holdings | Entity	1	1
Available-for-sale, Less than 12 Months, Fair Value	$ 0	$ 0
Available-for-sale, Less than 12 Months, Unrealized Losses	0	0
Available-for-sale, Over 12 Months, Fair Value	4,042	4,144
Available-for-sale, Over 12 Months, Unrealized Losses	$ (150)	$ (78)
Number of Holdings | Entity	2
Held-to-maturity, Less than 12 Months, Fair Value	$ 7,730
Held-to-maturity, Less than 12 Months, Unrealized Losses	$ (104)
U.S. government sponsored mortgage-backed securities
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Number of Holdings | Entity	83	81
Held-to-maturity, Less than 12 Months, Fair Value	$ 51,683	$ 64,056
Held-to-maturity, Less than 12 Months, Unrealized Losses	(1,034)	(718)
Held-to-maturity, Over 12 Months, Fair Value	74,738	62,798
Held-to-maturity, Over 12 Months, Unrealized Losses	$ (2,686)	$ (1,371)

Loans, Allowance for Loan Los38

Loans, Allowance for Loan Losses and Credit Quality - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)Contract	Jun. 30, 2017USD ($)Contract	Jun. 30, 2018USD ($)Contract	Jun. 30, 2017USD ($)Contract	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Due days of accrual of interest on all loans			90 days
Originate loans with a loan-to-value	80.00%		80.00%
Loans, allowance for loan losses	$ 17,296,000	$ 15,089,000	$ 17,296,000	$ 15,089,000	$ 16,584,000	$ 16,312,000	$ 14,382,000	$ 13,585,000
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans, allowance for loan losses	$ 664,000	$ 572,000	$ 664,000	$ 572,000	$ 637,000	621,000	$ 545,000	$ 517,000
Financing Receivable Troubled Debt Restructurings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of financing receivables modified by troubled debt restructurings | Contract	0	1	0	1
Residential one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Consumer mortgage loans in the process of foreclosure amount	$ 260,000		$ 260,000			$ 0

Summary of Loans (Detail)

Summary of Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 2,543,848		$ 2,301,183
Net deferred loan costs	3,501		3,426
Net unamortized mortgage premiums	9,265		8,661
Allowance for loan losses	(17,296)	$ (16,584)	(16,312)	$ (15,089)	$ (14,382)	$ (13,585)
Total loans, net	$ 2,539,318		$ 2,296,958
Commercial and consumer gross percent	3.28%		4.10%
Total loans, Percent	100.00%		100.00%
Construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 38,460		$ 53,045
Allowance for loan losses	(550)	(458)	(764)	(1,153)	(1,297)	(1,219)
Mortgage Loan Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 2,460,421		$ 2,206,799
Mortgage loans on real estate percent	96.72%		95.90%
Mortgage Loan Portfolio Segment | Multifamily Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 185,000		$ 155,680
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 1,520,873		$ 1,333,058
Mortgage loans on real estate percent	59.79%		57.93%
Allowance for loan losses	$ (7,144)	(6,584)	$ (6,400)	(5,664)	(5,223)	(4,828)
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 544,347		$ 486,392
Mortgage loans on real estate percent	21.40%		21.13%
Allowance for loan losses	$ (5,686)	(5,148)	$ (4,979)	(4,322)	(3,924)	(3,676)
Mortgage Loan Portfolio Segment | Real Estate Loan | Multifamily Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 185,000		$ 155,680
Mortgage loans on real estate percent	7.27%		6.77%
Allowance for loan losses	$ (1,572)	(1,820)	$ (1,604)	(1,290)	(1,326)	(1,209)
Mortgage Loan Portfolio Segment | Home equity lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 171,741		$ 178,624
Mortgage loans on real estate percent	6.75%		7.76%
Allowance for loan losses	$ (841)	(950)	$ (947)	(1,024)	(1,011)	(1,037)
Mortgage Loan Portfolio Segment | Construction loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 38,460		$ 53,045
Mortgage loans on real estate percent	1.51%		2.31%
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 63,215		$ 63,722
Allowance for loan losses	$ (688)	(789)	$ (758)	(718)	(713)	(728)
Commercial loans, percentage	2.48%		2.77%
Consumer Portfolio Segment | Indirect auto loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 19,804		$ 30,227
consumer loans, percent	0.78%		1.31%
Allowance for loan losses	$ (146)	(193)	$ (230)	(339)	(335)	(362)
Consumer Portfolio Segment | Other Consumer Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 408		$ 435
consumer loans, percent	0.02%		0.02%
Allowance for loan losses	$ (5)	$ (5)	$ (9)	$ (7)	$ (8)	$ (9)
Commercial and Consumer Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Balance	$ 83,427		$ 94,384

Allowance for Loan Losses by Po

Allowance for Loan Losses by Portfolio Class (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	$ 16,584	$ 14,382	$ 16,312	$ 13,585
Provision (benefit)	726	707	1,001	1,536
Charge-offs	(16)	(13)	(29)	(49)
Recoveries	2	13	12	17
Ending Balance	17,296	15,089	17,296	15,089
Construction loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	458	1,297	764	1,219
Provision (benefit)	92	(144)	(214)	(66)
Ending Balance	550	1,153	550	1,153
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	6,584	5,223	6,400	4,828
Provision (benefit)	560	441	744	836
Ending Balance	7,144	5,664	7,144	5,664
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	5,148	3,924	4,979	3,676
Provision (benefit)	538	398	707	646
Ending Balance	5,686	4,322	5,686	4,322
Mortgage Loan Portfolio Segment | Real Estate Loan | Multifamily Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	1,820	1,326	1,604	1,209
Provision (benefit)	(248)	(36)	(32)	81
Ending Balance	1,572	1,290	1,572	1,290
Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	950	1,011	947	1,037
Provision (benefit)	(109)	13	(106)	(13)
Ending Balance	841	1,024	841	1,024
Commercial Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	789	713	758	728
Provision (benefit)	(101)	5	(66)	(10)
Charge-offs			(4)
Ending Balance	688	718	688	718
Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	193	335	230	362
Provision (benefit)	(33)	1	(73)	1
Charge-offs	(16)	(9)	(22)	(40)
Recoveries	2	12	11	16
Ending Balance	146	339	146	339
Consumer Portfolio Segment | Other Consumer Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	5	8	9	9
Provision (benefit)		2	(2)	6
Charge-offs		(4)	(3)	(9)
Recoveries		1	1	1
Ending Balance	5	7	5	7
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	637	545	621	517
Provision (benefit)	27	27	43	55
Ending Balance	$ 664	$ 572	$ 664	$ 572

Individually Impaired Loans by

Individually Impaired Loans by Class of Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, Loan Balance	$ 5,011		$ 5,569
Individually evaluated for impairment, Loan allowance	6		147
Collectively evaluated for impairment, Loan Balance	2,538,837		2,295,614
Collectively evaluated for impairment, Loan allowance	17,290		16,165
Total Loan Balance	2,543,848		2,301,183
Total Loan, allowance	17,296	$ 16,584	16,312	$ 15,089	$ 14,382	$ 13,585
Construction loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Loan Balance	38,460		53,045
Collectively evaluated for impairment, Loan allowance	550		764
Total Loan Balance	38,460		53,045
Total Loan, allowance	550	458	764	1,153	1,297	1,219
Mortgage Loan Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loan Balance	2,460,421		2,206,799
Mortgage Loan Portfolio Segment | Multifamily Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loan Balance	185,000		155,680
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, Loan Balance	2,109		2,688
Individually evaluated for impairment, Loan allowance	6		147
Collectively evaluated for impairment, Loan Balance	1,518,764		1,330,370
Collectively evaluated for impairment, Loan allowance	7,138		6,253
Total Loan Balance	1,520,873		1,333,058
Total Loan, allowance	7,144	6,584	6,400	5,664	5,223	4,828
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, Loan Balance	2,851		2,877
Collectively evaluated for impairment, Loan Balance	541,496		483,515
Collectively evaluated for impairment, Loan allowance	5,686		4,979
Total Loan Balance	544,347		486,392
Total Loan, allowance	5,686	5,148	4,979	4,322	3,924	3,676
Mortgage Loan Portfolio Segment | Real Estate Loan | Multifamily Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Loan Balance	185,000		155,680
Collectively evaluated for impairment, Loan allowance	1,572		1,604
Total Loan Balance	185,000		155,680
Total Loan, allowance	1,572	1,820	1,604	1,290	1,326	1,209
Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, Loan Balance	50
Collectively evaluated for impairment, Loan Balance	171,691		178,624
Collectively evaluated for impairment, Loan allowance	841		947
Total Loan Balance	171,741		178,624
Total Loan, allowance	841	950	947	1,024	1,011	1,037
Mortgage Loan Portfolio Segment | Construction loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loan Balance	38,460		53,045
Commercial Portfolio Segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Loan Balance	63,215		63,722
Collectively evaluated for impairment, Loan allowance	688		758
Total Loan Balance	63,215		63,722
Total Loan, allowance	688	789	758	718	713	728
Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment, Loan Balance	1		4
Collectively evaluated for impairment, Loan Balance	19,803		30,223
Collectively evaluated for impairment, Loan allowance	146		230
Total Loan Balance	19,804		30,227
Total Loan, allowance	146	193	230	339	335	362
Consumer Portfolio Segment | Other Consumer Loan
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Loan Balance	408		435
Collectively evaluated for impairment, Loan allowance	5		9
Total Loan Balance	408		435
Total Loan, allowance	5	5	9	7	8	9
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment, Loan allowance	664		621
Total Loan, allowance	$ 664	$ 637	$ 621	$ 572	$ 545	$ 517

Impaired Loans (Detail)

Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with a related allowance for credit losses, Recorded Investment	$ 195		$ 195		$ 725
Impaired loans with a related allowance for credit losses at, Unpaid Principal Balance	195		195		725
Impaired loans with a related allowance for credit losses at, Specific Allowance	6		6		147
Impaired loans with no related allowance for credit losses, Recorded Investment	4,816		4,816		4,844
Impaired loans with no related allowance for credit losses, Unpaid Principal Balance	4,930		4,930		4,933
Impaired loans with a related allowance for credit losses, Average recorded Investment	195	$ 1,229	283	$ 1,066
Impaired loans with a related allowance for credit losses, Interest income recognized	2	8	7	16
Impaired loans with no related allowance for credit losses, Average recorded Investment	4,815	5,054	4,822	5,433
Impaired loans with no related allowance for credit losses, Interest income recognized	40	44	78	94
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with a related allowance for credit losses, Recorded Investment	195		195		725
Impaired loans with a related allowance for credit losses at, Unpaid Principal Balance	195		195		725
Impaired loans with a related allowance for credit losses at, Specific Allowance	6		6		147
Impaired loans with no related allowance for credit losses, Recorded Investment	1,914		1,914		1,963
Impaired loans with no related allowance for credit losses, Unpaid Principal Balance	2,028		2,028		2,052
Impaired loans with a related allowance for credit losses, Average recorded Investment	195	1,229	283	1,066
Impaired loans with a related allowance for credit losses, Interest income recognized	2	8	7	16
Impaired loans with no related allowance for credit losses, Average recorded Investment	1,923	1,767	1,936	1,953
Impaired loans with no related allowance for credit losses, Interest income recognized	8	6	16	9
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with no related allowance for credit losses, Recorded Investment	2,851		2,851		2,877
Impaired loans with no related allowance for credit losses, Unpaid Principal Balance	2,851		2,851		2,877
Impaired loans with no related allowance for credit losses, Average recorded Investment	2,856	3,215	2,864	3,260
Impaired loans with no related allowance for credit losses, Interest income recognized	32	36	62	72
Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with no related allowance for credit losses, Recorded Investment	50		50
Impaired loans with no related allowance for credit losses, Unpaid Principal Balance	50		50
Impaired loans with no related allowance for credit losses, Average recorded Investment	33	65	17	212
Impaired loans with no related allowance for credit losses, Interest income recognized		2		13
Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired loans with no related allowance for credit losses, Recorded Investment	1		1		4
Impaired loans with no related allowance for credit losses, Unpaid Principal Balance	1		1		$ 4
Impaired loans with no related allowance for credit losses, Average recorded Investment	$ 3	$ 7	$ 5	$ 8

Past Due and Non-Accrual Loans

Past Due and Non-Accrual Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	$ 2,710	$ 2,068
90 days or more and accruing	0	0
Loans on Non-accrual	758	1,376
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	2,269	971
90 days or more and accruing	0	0
Loans on Non-accrual	707	1,372
Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	138	716
90 days or more and accruing	0	0
Loans on Non-accrual	50
Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	303	381
90 days or more and accruing	0	0
Loans on Non-accrual	1	4
30-59 Days
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	2,392	1,774
30-59 Days | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	2,008	711
30-59 Days | Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	138	716
30-59 Days | Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	246	347
60-89 Days
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	57	30
60-89 Days | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	1
60-89 Days | Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	56	30
Loans 90 Days Or More Past Due
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	261	264
Loans 90 Days Or More Past Due | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	260	260
Loans 90 Days Or More Past Due | Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Days Past Due	$ 1	$ 4

Loans Classified by Risk Rating

Loans Classified by Risk Rating (Detail) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		$ 2,543,848	$ 2,301,183
Construction loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		38,460	53,045
Mortgage Loan Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		2,460,421	2,206,799
Mortgage Loan Portfolio Segment | Multifamily Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		185,000	155,680
Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		1,520,873	1,333,058
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		544,347	486,392
Mortgage Loan Portfolio Segment | Real Estate Loan | Multifamily Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		185,000	155,680
Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		171,741	178,624
Mortgage Loan Portfolio Segment | Construction loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		38,460	53,045
Commercial Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		63,215	63,722
Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		19,804	30,227
Consumer Portfolio Segment | Other Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		408	435
Loans rated 1-3.5
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		827,243	754,981
Loans rated 1-3.5 | Construction loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		38,460	53,045
Loans rated 1-3.5 | Mortgage Loan Portfolio Segment | Multifamily Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		185,000	155,680
Loans rated 1-3.5 | Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		540,568	482,574
Loans rated 1-3.5 | Commercial Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		63,215	63,682
Loans rated 4
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		339	384
Loans rated 4 | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		339	344
Loans rated 4 | Commercial Portfolio Segment
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance			40
Loans rated 5
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		5,215	6,650
Loans rated 5 | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		1,387	2,060
Loans rated 5 | Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		3,779	3,818
Loans rated 5 | Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance		49	772
Loans not rated
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance	[1]	1,711,051	1,539,168
Loans not rated | Mortgage Loan Portfolio Segment | Real Estate Loan | Residential one-to-four family
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance	[1]	1,519,147	1,330,654
Loans not rated | Mortgage Loan Portfolio Segment | Home equity lines of credit
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance	[1]	171,692	177,852
Loans not rated | Consumer Portfolio Segment | Indirect auto loans
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance	[1]	19,804	30,227
Loans not rated | Consumer Portfolio Segment | Other Consumer Loan
Financing Receivable, Recorded Investment [Line Items]
Total Loans Balance	[1]	$ 408	$ 435
[1]	Residential real estate and home equity lines of credit are not formally risk rated by the Company unless the loans become delinquent, impaired or are restructured as a TDR.

Troubled Debt Restructuring Acc

Troubled Debt Restructuring Accrual Status (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total TDRs	$ 4,253	$ 4,839
Amount of specific allocation included in the allowance for loan losses associated with TDRs	6	147
Additional commitments to lend to a borrower who has been a party to a TDR	0	0
Accrual Loans
Financing Receivable, Recorded Investment [Line Items]
Total TDRs	$ 4,253	4,194
Non-accrual Loans
Financing Receivable, Recorded Investment [Line Items]
Total TDRs		$ 645

Troubled Debt Restructurings on

Troubled Debt Restructurings on Financing Receivables (Detail) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017USD ($)Contract	Jun. 30, 2017USD ($)Contract
Financing Receivable, Modifications [Line Items]
Post-modification outstanding recorded investment	$ 273	$ 273
Mortgage Loan Portfolio Segment | Real Estate Loan
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	1	1
Pre-modification outstanding recorded investment	$ 273	$ 273
Post-modification outstanding recorded investment	$ 273	$ 273
Mortgage Loan Portfolio Segment | Real Estate Loan | Commercial real estate loans
Financing Receivable, Modifications [Line Items]
Number of Contracts | Contract	1	1
Pre-modification outstanding recorded investment	$ 273	$ 273
Post-modification outstanding recorded investment	$ 273	$ 273

Post Modification of Troubled D

Post Modification of Troubled Debt Restructuring Balance (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Post-modification outstanding recorded investment	$ 273	$ 273
Extended Maturity
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Post-modification outstanding recorded investment	$ 273	$ 273

Transfers and Servicing - Addit

Transfers and Servicing - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Residential Mortgage
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Loans previously sold and serviced	$ 129	$ 114.5
Indirect auto loans
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale [Line Items]
Loans previously sold and serviced	$ 5.5	$ 10.5

Changes in MSR (Detail)

Changes in MSR (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Transfers and Servicing [Abstract]
Balance at beginning of period	$ 1,053	$ 414	$ 855	$ 403
Capitalization	5	180	213	185
Amortization	(49)	(27)	(98)	(51)
Valuation allowance adjustment	8	17	47	47
Balance at end of period	$ 1,017	$ 584	$ 1,017	$ 584

Securities Sold Under Agreeme50

Securities Sold Under Agreements to Repurchase and Other Borrowed Funds - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securities Sold under Agreements to Repurchase [Abstract]
Balance of securities sold under agreements to repurchase	$ 3,999	$ 3,268

Employee and Director Benefit51

Employee and Director Benefit Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2011	Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Compensation expense recognized	$ 501	$ 461	$ 1,100	$ 973
Compensation expense liability	8,232		$ 8,232			$ 7,919
Percentage of eligible compensation of employee			75.00%
Contributions by the Company	$ 245	210	$ 498	453
Percentage of defined compensation vested			100.00%
ESOP, purchase shares					458,643
Common stock price per share			$ 10
Loan obtained by the ESOP, payable annually over			30 years
Loan obtained by ESOP rate per annum equal to prime rate	4.50%		4.50%
ESOP expense	$ 126	$ 111	$ 241	$ 218
Incentive Compensation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Compensation expense liability	1,100		1,100			2,100
Rabbi Trust | Deferred Compensation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Recorded liability	2,800		2,800			2,800
Executive Officers | Other Supplemental Retirement Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated liability	2,700		$ 2,700			2,600
Benefit upon termination of employment at or after age			55 years
Reduced benefits available prior to attaining age			55 years
Executive Officers | Belmont Savings Bank Supplemental Executive Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated liability	2,000		$ 2,000			1,800
Executive Officers | Maximum | Other Supplemental Retirement Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of years of service to complete			10 years
Executive Officers | Maximum | Belmont Savings Bank Supplemental Executive Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fully vested participants, years of service to complete			10 years
Executive Officers | Minimum | Other Supplemental Retirement Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Number of years of service to complete			10 years
Executive Officers | Minimum | Belmont Savings Bank Supplemental Executive Retirement Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fully vested participants, years of service to complete			5 years
Directors
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated liability	$ 696		$ 696			$ 697

Securities and Loans Pledged to

Securities and Loans Pledged to Secure Securities Sold Under Agreements to Repurchase, FHLB Advances and Credit Facilities Available (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities held-to- maturity (at cost)	$ 59,727	$ 69,028
Loans receivable	1,663,046	1,406,483
Total pledged assets	1,722,773	1,475,511
Repurchase agreements
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities held-to- maturity (at cost)	6,143	5,582
Total pledged assets	6,143	5,582
FHLB borrowings
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities held-to- maturity (at cost)	44,783	47,666
Loans receivable	1,663,046	1,406,483
Total pledged assets	1,707,829	1,454,149
Federal Reserve Bank LOC
Financial Instruments Owned and Pledged as Collateral [Line Items]
Securities held-to- maturity (at cost)	8,801	15,780
Total pledged assets	$ 8,801	$ 15,780

Earning Per Share (Detail)

Earning Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings Per Share, Basic and Diluted [Abstract]
Net income	$ 6,068	$ 4,012	$ 12,078	$ 7,678
Undistributed earnings attributable to participating securities	(1)	(33)	(2)	(64)
Net income allocated to common stockholders	$ 6,067	$ 3,979	$ 12,076	$ 7,614
Weighted average shares outstanding, basic	8,948,092	8,754,917	8,917,697	8,715,635
Effect of dilutive shares	452,904	429,742	452,640	415,744
Weighted average shares outstanding, assuming dilution	9,400,996	9,184,659	9,370,337	9,131,379
Basic EPS	$ 0.68	$ 0.45	$ 1.35	$ 0.87
Effect of dilutive shares	(0.03)	(0.02)	(0.06)	(0.04)
Diluted EPS	$ 0.65	$ 0.43	$ 1.29	$ 0.83

Earnings Per Share - Additional

Earnings Per Share - Additional information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Jun. 22, 2013
Earnings Per Share, Basic and Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share	0	0	0	0
Shares repurchase during period under repurchase program	0	0	0	0
Maximum
Earnings Per Share, Basic and Diluted [Abstract]
Share repurchase program, shares authorized to be repurchased					500,000

Stock Based Compensation - Addi

Stock Based Compensation - Additional Information (Detail) - 2017 Equity Incentive Plan - Restricted Stock - $ / shares	Apr. 23, 2018	Mar. 15, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted	3,898	487,200
Restricted stock grant date price	$ 32.30	$ 27.10
Vesting period of awards granted	10 years	10 years
Estimated forfeiture rate of awards granted	2.27%	2.64%

Pre-Tax Expense Associated with

Pre-Tax Expense Associated with Stock Option and Restricted Stock Awards and Related Tax Benefits Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock options	$ 23	$ 196	$ 45	$ 385
Restricted stock awards	327	539	657	807
Total stock based compensation expense	350	735	702	1,192
Related tax benefits recognized in earnings	$ 92	$ 254	$ 186	$ 397

Excess Tax Benefits Recognized

Excess Tax Benefits Recognized from Stock Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Adoption of ASU 2016-09
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
After tax benefits recognized in net income	$ 18	$ 63	$ 127	$ 781

Unrecognized Compensation Cost

Unrecognized Compensation Cost Related to Non-Vested Awards and Weighted Average Recognition Period (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total	$ 10,266
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options, amount	$ 95
Restricted stock, weighted average period	2 years 2 months 16 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, amount	$ 10,171
Restricted stock, weighted average period	8 years 8 months 16 days

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	Dec. 31, 2017USD ($)
Fair Value Disclosures [Abstract]
Derivative Assets	$ 0
Derivative Liabilities	$ 0

Summary of Financial Assets and

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 4,042,000	$ 16,921,000
Asset Derivatives		0
Liability derivatives		0
Rabbi Trust
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	2,837,000	2,808,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Totals	9,246,000	19,729,000
Totals	966,000
Fair Value, Measurements, Recurring | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	1,446,000
Fair Value, Measurements, Recurring | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	905,000
Liability derivatives	966,000
Fair Value, Measurements, Recurring | Risk Participation-Out Agreements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	16,000
Fair Value, Measurements, Recurring | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	4,042,000	16,921,000
Fair Value, Measurements, Recurring | Rabbi Trust
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	2,837,000	2,808,000
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Totals	2,837,000	2,808,000
Fair Value, Measurements, Recurring | Level 1 | Rabbi Trust
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading securities	2,837,000	2,808,000
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Totals	6,409,000	16,921,000
Totals	966,000
Fair Value, Measurements, Recurring | Level 2 | Interest Rate Cap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	1,446,000
Fair Value, Measurements, Recurring | Level 2 | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	905,000
Liability derivatives	966,000
Fair Value, Measurements, Recurring | Level 2 | Risk Participation-Out Agreements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset Derivatives	16,000
Fair Value, Measurements, Recurring | Level 2 | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available-for-sale	$ 4,042,000	$ 16,921,000

Schedule of Loans Held-for-Sale

Schedule of Loans Held-for-Sale (Detail) $ in Thousands	Jun. 30, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 4,104
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	4,104
Totals	$ 4,104

Assets Remeasured and Reported

Assets Remeasured and Reported at Lower Amortized of Cost or Fair Value (Detail) - Fair Value, Measurements, Nonrecurring - Level 3 - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 1,017	$ 855
Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets measured at fair value on a nonrecurring basis	$ 1,017	$ 855

Fair Values of Assets and Liabi

Fair Values of Assets and Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 103,702	$ 110,888	$ 52,041	$ 58,876
Interest-bearing time deposits with other banks	2,415	2,440
Held-to-maturity securities	153,654	160,090
Federal Home Loan Bank stock	40,082	32,382
Loans, net	2,539,318	2,296,958
Accrued interest receivable	6,950	6,344
Bank-owned life insurance	37,496	36,967
Liabilities
Deposits	1,833,863	1,751,251
Federal Home Loan Bank advances	855,250	723,150
Securities sold under agreements to repurchase	3,999	3,268
Accrued interest payable	2,004	1,594
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	103,702	110,888
Interest-bearing time deposits with other banks	2,415	2,440
Held-to-maturity securities	149,932	158,385
Federal Home Loan Bank stock	40,082	32,382
Loans, net	2,440,843	2,251,971
Accrued interest receivable	6,950	6,344
Bank-owned life insurance	37,496	36,967
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,828,030	1,748,995
Federal Home Loan Bank advances	849,207	719,430
Securities sold under agreements to repurchase	3,999	3,268
Accrued interest payable	2,004	1,594
Mortgagors' escrow accounts	6,444	4,690
Carrying Amount
ASSETS
Cash and cash equivalents	103,702	110,888
Interest-bearing time deposits with other banks	2,415	2,440
Held-to-maturity securities	153,654	160,090
Federal Home Loan Bank stock	40,082	32,382
Loans, net	2,539,318	2,296,958
Accrued interest receivable	6,950	6,344
Bank-owned life insurance	37,496	36,967
Liabilities
Deposits	1,833,863	1,751,251
Federal Home Loan Bank advances	855,250	723,150
Securities sold under agreements to repurchase	3,999	3,268
Accrued interest payable	2,004	1,594
Mortgagors' escrow accounts	6,444	4,690
Level 1
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents	103,702	110,888
Accrued interest receivable	6,950	6,344
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	1,251,620	1,246,537
Accrued interest payable	2,004	1,594
Level 2
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Interest-bearing time deposits with other banks	2,415	2,440
Held-to-maturity securities	149,932	158,385
Federal Home Loan Bank stock	40,082	32,382
Bank-owned life insurance	37,496	36,967
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits	576,410	502,458
Federal Home Loan Bank advances	849,207	719,430
Securities sold under agreements to repurchase	3,999	3,268
Mortgagors' escrow accounts	6,444	4,690
Level 3
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Loans, net	$ 2,440,843	$ 2,251,971

Other Comprehensive Income (L64

Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Schedule of Other Comprehensive Income (Loss) [Line Items]
Change in fair value of securities available-for-sale, After Tax Amount	$ (13)	$ (3)	$ (68)	$ 64
Net change in fair value of cash flow hedges, After Tax Amount	73		(57)
Total other comprehensive (loss) income	60	(3)	(125)	64
After Tax
Schedule of Other Comprehensive Income (Loss) [Line Items]
Change in fair value of securities available-for-sale, After Tax Amount	(13)	(3)	(68)	64
Net change in fair value of cash flow hedges, After Tax Amount	73		(57)
Total other comprehensive (loss) income	60	(3)	(125)	64
Tax Benefit (Expense)
Schedule of Other Comprehensive Income (Loss) [Line Items]
Change in fair value of securities available-for-sale, Tax Benefit (Expense)	5	2	28	(44)
Net change in fair value of cash flow hedges, Tax Benefit (Expense)	(28)		22
Total other comprehensive (loss) income, Tax Benefit (Expense)	(23)	2	50	(44)
Pre Tax
Schedule of Other Comprehensive Income (Loss) [Line Items]
Change in fair value of securities available-for-sale, Pre-Tax Amount	(18)	(5)	(96)	108
Net change in fair value of cash flow hedges, Pre-Tax Amount	101		(79)
Total other comprehensive (loss) income, Pre-Tax Amount	$ 83	$ (5)	$ (175)	$ 108

Components of Accumulated Other

Components of Accumulated Other Comprehensive (Loss) Income, included in Stockholders' Equity (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net unrealized holding loss on available-for-sale securities, net of tax	$ (108)	$ (32)
Unrecognized benefit pertaining to defined benefit plan, net of tax	148	121
Net unrealized holding loss on cash flow hedges, net of tax	(57)
Accumulated other comprehensive (loss)income	$ (17)	$ 89

Other Comprehensive Income (L66

Other Comprehensive Income (Loss) - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income [Line Items]
Tax cut and job act 2017 AOCI re-measurement of deferred tax assets and liabilities		$ 19,000
Accounting Standards Update 2018-02
Accumulated Other Comprehensive Income [Line Items]
Reclassification of income tax effects related to items stranded within accumulated other comprehensive income from the Tax Cuts and Jobs Act	$ (19,000)

Derivative Financial Instrume67

Derivative Financial Instruments And Hedging Activities - Additional Information (Detail) - USD ($)	1 Months Ended	6 Months Ended
	Mar. 31, 2018	Jun. 30, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Collateral		$ 0
Cash collateral		740,000
Designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Rolling FHLB advances	$ 100,000,000
Premium paid	1,500,000
Credit Risk
Derivative Instruments, Gain (Loss) [Line Items]
Credit derivative exposure net of collateral		481,000
Interest Rate Cap | Designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Debt instrument, face amount	100,000,000	$ 100,000,000
Premium paid	$ 1,500,000
Agreement, maturity date		Mar. 21, 2023
Estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months		$ 47,000
Interest Rate Cap | Designated as hedging instruments | Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Intrest cap at maximum rate	3.00%
Interest Rate Cap | Designated as hedging instruments | London Interbank Offered Rate (LIBOR) | Minimum
Derivative Instruments, Gain (Loss) [Line Items]
Libor cap strike price	3.00%

Derivative Financial Instrume68

Derivative Financial Instruments And Hedging Activities - Fair Value of Derivative Financial Instruments (Detail)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Derivative Instruments And Hedging Activities [Line Items]
Liability derivatives			$ 0
Asset Derivatives			$ 0
Designated as hedging instruments
Derivative Instruments And Hedging Activities [Line Items]
Asset Derivatives	$ 1,446,000
Derivatives Not Designated as Hedging Instruments
Derivative Instruments And Hedging Activities [Line Items]
Liability derivatives	966,000
Asset Derivatives	$ 921,000
Derivatives Not Designated as Hedging Instruments | Third Party Financial Institution
Derivative Instruments And Hedging Activities [Line Items]
Number of Transactions	3
Notional Amount	$ 6,340,000
Interest Rate Cap | Designated as hedging instruments
Derivative Instruments And Hedging Activities [Line Items]
Number of Transactions	1
Notional Amount	$ 100,000,000	$ 100,000,000
Asset Derivatives	$ 1,446,000
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Commercial loans
Derivative Instruments And Hedging Activities [Line Items]
Number of Transactions	4
Notional Amount	$ 54,370,000
Asset Derivatives	$ 905,000
Interest Rate Swaps | Derivatives Not Designated as Hedging Instruments | Third Party Financial Institution
Derivative Instruments And Hedging Activities [Line Items]
Number of Transactions	4
Notional Amount	$ 54,370,000
Liability derivatives	966,000
Risk Participation-Out Agreements | Derivatives Not Designated as Hedging Instruments | Third Party Financial Institution
Derivative Instruments And Hedging Activities [Line Items]
Asset Derivatives	$ 16,000

Schedule of Derivative Financia

Schedule of Derivative Financial Instruments Included in Other Comprehensive Income and Reclassifications into Earnings (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	$ 101		$ (79)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	0	$ 0	0	$ 0
Interest Rate Cap
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	101		(79)
Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	$ 0	$ 0	$ 0	$ 0

Effect of Company's Derivative

Effect of Company's Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative Instruments	$ (77)	$ (77)
Interest Rate Swaps
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative Instruments	(61)	(61)
Risk Participation-Out Agreements
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative Instruments	$ (16)	$ (16)

Asset and Liability Derivative

Asset and Liability Derivative Positions and Repurchase Agreements (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Offsetting Derivative Assets [Abstract]
Gross Amounts of Recognized Assets, Derivative Assets	$ 2,367
Gross Amounts Offset in the Statement of Financial Position, Derivative Assets	0
Net Amounts of Assets Presented in the Statement of Financial Position, Derivative Assets	2,367
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments, Derivative Assets	966
Gross Amounts Not Offset in the Statement of Financial Position, Collateral Pledged (Received), Derivative Assets	(481)
Gross Amounts Not Offset in the Statement of Financial Position, Net Amount, Derivative Assets	920
Gross Amounts of Recognized Liabilities, Derivative Liabilities	966
Gross Amounts Offset in the Statement of Financial Position, Derivative Liabilities	0
Net Amounts of Liabilities Presented in the Statement of Financial Position, Derivative Liabilities	966
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments, Derivative Liabilities	966
Gross Amounts Not Offset in the Statement of Financial Position, Collateral Pledged (Received), Derivative Liabilities	0
Gross Amounts Not Offset in the Statement of Financial Position, Net Amount, Derivative Liabilities	0
Gross Amounts of Recognized Liabilities , Securities sold under agreements to repurchase	3,999	$ 3,268
Gross Amounts Offset in the Statement of Financial Position, Securities sold under agreements to repurchase	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position, Securities sold under agreements to repurchase	3,999	3,268
Gross Amounts Not Offset in the Statement of Financial Position, Financial Instruments, Securities sold under agreements to repurchase	0	0
Gross Amounts Not Offset in the Statement of Financial Position, Collateral Pledged (Received) , Securities sold under agreements to repurchase	3,999	3,268
Gross Amounts Not Offset in the Statement of Financial Position, Net Amount, Securities sold under agreements to repurchase	$ 0	$ 0