BCB Bancorp (BCBP) 10-K 6 Mar 18 2017 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Mar. 01, 2018	Jun. 30, 2017
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Entity Registrant Name	BCB BANCORP INC
Entity Central Index Key	1,228,454
Trading Symbol	bcbp
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		15,055,280
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Entity Current Reporting Status	Yes
Entity Public Float			$ 143.6
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
ASSETS
Cash and amounts due from depository institutions	$ 16,460	$ 12,121
Interest-earning deposits	107,775	52,917
Total cash and cash equivalents	124,235	65,038
Interest-earning time deposits	980	980
Securities available for sale	122,589	94,765
Loans held for sale	1,295	4,153
Loans receivable, net of allowance for loan losses of $17,375 and $17,209, respectively	1,643,677	1,485,159
Federal Home Loan Bank of New York stock, at cost	10,211	9,306
Premises and equipment, net	18,768	19,382
Accrued interest receivable	6,153	5,573
Other real estate owned	532	3,525
Deferred income taxes	5,144	9,953
Other assets	9,253	10,374
Total Assets	1,942,837	1,708,208
LIABILITIES
Non-interest bearing deposits	201,043	183,821
Interest bearing deposits	1,368,327	1,208,384
Total deposits	1,569,370	1,392,205
Short-term debt		20,000
Long-term debt	185,000	155,000
Subordinated debentures	4,124	4,124
Other liabilities	7,889	5,798
Total Liabilities	1,766,383	1,577,127
STOCKHOLDERS' EQUITY
Preferred stock: $0.01 par value, 10,000,000 shares authorized, issued and outstanding 1,342 shares of Series C 6% and Series D 4.5% noncumulative perpetual preferred stock (liquidation value $10,000 per share) at December 31, 2017 and 1,560 shares of Series A, B, C 6% noncumulative preferred stock at December 31, 2016
Additional paid-in capital preferred stock	13,241	15,464
Common stock; no par value; 20,000,000 shares authorized, issued 17,572,942 and 13,797,088 at December 31, 2017 and 2016, respectively, 15,042,179 and 11,267,225 shares, respectively outstanding
Additional paid-in capital common stock	164,230	120,417
Retained earnings	31,241	28,159
Accumulated other comprehensive (loss)	(3,142)	(3,856)
Treasury stock, at cost, 2,530,763 and 2.529,863, respectively	(29,116)	(29,103)
Total Stockholders' Equity	176,454	131,081
Total Liabilites and Stockholders' equity	$ 1,942,837	$ 1,708,208

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans receivable, allowance for loan losses	$ 17,375	$ 17,209
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	1,342	1,560
Preferred stock, shares outstanding	1,342	1,560
Preferred stock, dividend rate	6.00%	6.00%
Preferred stock, liquidation preference per share	$ 10,000
Common stock, no par value	$ 0	$ 0
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	17,572,942	13,797,088
Common stock, shares outstanding	15,042,179	11,267,225
Treasury stock, shares	2,530,763	2,529,863
Series C Preferred Stock [Member]
Preferred stock, dividend rate	6.00%
Series D Preferred Stock [Member]
Preferred stock, dividend rate	4.50%

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interest income:
Loans, including fees	$ 73,355	$ 69,406	$ 66,628
Mortgage-backed securities	2,360	1,198	651
Municipal bonds and other debt	544	19
FHLB stock and other interest earning assets	1,312	732	101
Total interest income	77,571	71,355	67,380
Deposits:
Demand	2,816	2,090	923
Savings and club	397	379	403
Certificates of deposit	8,838	8,092	6,084
Total deposits	12,051	10,561	7,410
Borrowings	3,636	5,734	6,459
Total interest expense	15,687	16,295	13,869
Net interest income	61,884	55,060	53,511
Provision for loan losses	2,110	27	2,280
Net interest income, after provision for loan losses	59,774	55,033	51,231
Non-interest income:
Fees and service charges	3,101	3,076	2,061
Gain on sales of loans	2,357	3,326	4,873
Loss on bulk sale of impaired loans held in portfolio		(373)
Gain on sales of other real estate owned	1,585
Gain on sales of securities available for sale	97
Other	343	94	131
Total non-interest income	7,483	6,123	7,065
Non-interest expense:
Salaries and employee benefits	23,706	25,277	23,068
Occupancy and equipment	8,274	8,168	7,635
Data processing service fees	2,747	2,599	4,238
Professional fees	2,834	1,802	1,291
Director fees	691	670	528
Regulatory assessments	1,127	1,568	1,218
Advertising and promotional	433	1,601	2,217
Other real estate owned, net	146	221	574
Merger related expenses	802
Other	6,284	5,989	5,683
Total non-interest expense	47,044	47,895	46,452
Income before income tax provision	20,213	13,261	11,844
Income tax provision	10,231	5,258	4,814
Net Income	9,982	8,003	7,030
Preferred stock dividends	614	936	917
Net Income available to common stockholders	$ 9,368	$ 7,067	$ 6,113
Net Income per common share-basic and diluted
Basic	$ 0.76	$ 0.63	$ 0.69
Diluted	$ 0.75	$ 0.63	$ 0.69
Weighted average number of common shares outstanding
Basic	12,403	11,238	8,853
Diluted	12,508	11,251	8,875

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements of Comprehensive Income [Abstract]
Net Income	$ 9,982	$ 8,003	$ 7,030
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) arising during the period	2,294	(4,350)	(103)
Income tax (expense) benefit	(937)	1,777	42
Other comprehensive income (loss) on available-for-sale securities	1,357	(2,573)	(61)
Benefit Plans:
Actuarial (loss) gain	(146)	533	(338)
Income tax benefit (expense)	60	(218)	138
Other comprehensive (loss) income on benefit plans	(86)	315	(200)
Total other comprehensive income (loss)	1,271	(2,258)	(261)
Comprehensive income	$ 11,253	$ 5,745	$ 6,769

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Additional Paid-In Capital [Member]Common Stock [Member]	Additional Paid-In Capital [Member]Series D Preferred Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Common Stock [Member]	Series D Preferred Stock [Member]	Total
Beginning Balance at Dec. 31, 2014			$ 106,711	$ 25,983	$ (29,105)	$ (1,337)			$ 102,252
Issuance of stock	$ 25,613						$ 25,613
Proceeds from issuance of stock			3,848						3,848
Stock-based compensation expense			66						66
Treasury stock adjustment					9				9
Dividends payable on Series A, B and C 6% and Series D 4.5% noncumulative perpetual preferred stock				(917)					(917)
Cash dividends on common stock ($0.14 per share)				(4,461)					(4,461)
Dividend Reinvestment Plan			253	(253)
Stock Purchase Plan			365						365
Net income				7,030					7,030
Other comprehensive gain (loss)						(261)			(261)
Ending Balance at Dec. 31, 2015			136,856	27,382	(29,096)	(1,598)			133,544
Redemption of preferred stock			(1,710)						(1,710)
Stock-based compensation expense			125						125
Treasury Stock purchases					(7)				(7)
Dividends payable on Series A, B and C 6% and Series D 4.5% noncumulative perpetual preferred stock				(936)					(936)
Cash dividends on common stock ($0.14 per share)				(6,016)					(6,016)
Dividend Reinvestment Plan			274	(274)
Stock Purchase Plan			336						336
Net income				8,003					8,003
Other comprehensive gain (loss)						(2,258)			(2,258)
Ending Balance at Dec. 31, 2016			135,881	28,159	(29,103)	(3,856)			131,081
Issuance of stock	$ 42,759	$ 9,497					$ 42,759	$ 9,497
Redemption of preferred stock			(11,720)						(11,720)
Exercise of Stock Options			2						2
Stock-based compensation expense			199						199
Treasury Stock purchases					(13)				(13)
Dividends payable on Series A, B and C 6% and Series D 4.5% noncumulative perpetual preferred stock				(614)					(614)
Cash dividends on common stock ($0.14 per share)				(6,544)					(6,544)
Dividend Reinvestment Plan			299	(299)
Stock Purchase Plan			554						554
Net income				9,982					9,982
Reclassification due to the adoption of ASU No. 2018-02				557		(557)
Other comprehensive gain (loss)						1,271			1,271
Ending Balance at Dec. 31, 2017			$ 177,471	$ 31,241	$ (29,116)	$ (3,142)			$ 176,454

Consolidated Statements of Cha7

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Treasury stock purchases (shares)	900	600
Preferred stock, dividend rate	6.00%	6.00%	6.00%
Cash dividends declared (per share)	$ 0.14	$ 0.14	$ 0.14
Series C Preferred Stock [Member]
Preferred stock, dividend rate	6.00%
Series D Preferred Stock [Member]
Preferred stock, dividend rate	4.50%

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows from Operating Activities:
Net income	$ 9,982,000	$ 8,003,000	$ 7,030,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of premises and equipment	2,522,000	2,422,000	2,149,000
Amortization and accretion, net	(1,458,000)	(1,805,000)	(451,000)
Provision for loan losses	2,110,000	27,000	2,280,000
Deferred income tax	3,932,000	1,487,000	2,000
Loans originated for sale	(25,751,000)	(39,081,000)	(17,764,000)
Proceeds from sale of loans originated for sale	30,966,000	40,237,000	23,749,000
Gain on sales of loans	(2,357,000)	(3,326,000)	(4,873,000)
Fair value adjustment of other real estate owned	85,000	278,000	396,000
Gain on sales of securities available for sale	(97,000)
Gain from sales of other real estate owned	(1,585,000)
Loss on bulk sale of impaired loans held in portfolio		373,000
Stock compensation expense	199,000	125,000	66,000
(Increase) decrease in accrued interest receivable	(580,000)	22,000	(1,141,000)
Decrease (increase) in other assets	1,121,000	(1,043,000)	(2,257,000)
(Decrease) increase in accrued interest payable	(34,000)	(228,000)	239,000
Increase (decrease) in other liabilities	1,979,000	(250,000)	(1,736,000)
Net Cash Provided by Operating Activities	21,034,000	7,241,000	7,689,000
Cash flows from Investing Activities:
Proceeds from repayments, calls and maturities on securities available for sale	28,083,000	6,158,000	1,160,000
Puchases of securities available for sale	(75,074,000)	(95,722,000)	(1,174,000)
Sale (Purchase) of interest-earning time deposits		258,000	(245,000)
Proceeds from sales of securities available for sale	21,165,000
Proceeds from sales of other real estate owned	5,767,000	1,146,000	1,525,000
Proceeds from bulk sale of impaired loans held in portfolio		1,817,000
Net increase in loans receivable	(160,051,000)	(68,766,000)	(213,811,000)
Additions to premises and equipment	(1,908,000)	(6,077,000)	(3,581,000)
(Purchase) sale of Federal Home Loan Bank of New York stock	(905,000)	1,405,000	(1,881,000)
Net Cash Used in Investing Activities	(182,923,000)	(159,781,000)	(218,007,000)
Cash flows from Financing Activities:
Net increase in deposits	177,165,000	118,276,000	245,373,000
Proceeds from long-term debt	85,000,000	10,000,000	67,000,000
Repayments of long-term debt	(55,000,000)	(55,000,000)
Net change in short term debt	(20,000,000)	20,000,000	(26,000,000)
(Purchase) adjustments of treasury stock	(13,000)	(7,000)	9,000
Cash dividends paid on common stock	(6,544,000)	(6,016,000)	(4,461,000)
Cash dividends paid on preferred stock	(614,000)	(936,000)	(917,000)
Net proceeds from issuance of common stock	43,314,000	336,000	25,978,000
Redemption of preferred stock	(11,720,000)
Net proceeds from issuance (redemption) of preferred stock	9,496,000	(1,710,000)	3,848,000
Exercise of stock options	2,000
Net Cash Provided by Financing Activities	221,086,000	84,943,000	310,830,000
Net Increase (Decrease) In Cash and Cash Equivalents	59,197,000	(67,597,000)	100,512,000
Cash and Cash Equivalents - Begininng	65,038,000	132,635,000	32,123,000
Cash and Cash Equivalents - Ending	124,235,000	65,038,000	132,635,000
Supplementary Cash Flow Information:
Cash paid during the year for: Income taxes	4,289,000	5,317,000	2,384,000
Cash paid during the year for: Interest	15,722,000	16,523,000	$ 13,630,000
Non-cash items:
Transfer of loans to other real estate owned	$ 1,274,000	$ 3,227,000

Organization and Stock Offering

Organization and Stock Offerings	12 Months Ended
	Dec. 31, 2017
Organization and Stock Offerings [Abstract]
Organization and Stock Offerings	Note 1 - Organi zation and Stock Offerings  BCB Bancorp, Inc. (the “Company”) is incorporated in the State of New Jersey and is a bank holding company. The common stock of the Company is listed on the NASDAQ Global Market and trades under the symbol “BCBP”.  The Company’s primary business is the ownership and operation of BCB Community Bank (the “Bank”). The Bank is a New Jersey commercial bank which, as of December 31, 2016, operated at twenty-two locations in Bayonne, Carteret, Colonia, Edison, Fairfield, Hoboken, Holmdel, Jersey City, Lodi, Lyndhurst, Monroe Township, South Orange, Rutherford, Union, and Woodbridge New Jersey, and Staten Island, New York and is subject to regulation, supervision, and examination by the New Jersey Department of Banking and Insurance and the Federal Deposit Insurance Corporation. The Bank is principally engaged in the business of attracting deposits from the general public and using these deposits, together with borrowed funds, to invest in securities and to make loans collateralized by residential and commercial real estate and, to a lesser extent, consumer loans. BCB Holding Company Investment Corp. (the “New Jersey Investment Company”) was organized in January 2005 under New Jersey law as a New Jersey investment company primarily to hold investment and mortgage-backed securities. Pamrapo Service Corporation was organized in 1975 under New Jersey law to engage in the purchase and sale of real estate. In the 1990’s, the Pamrapo Service Corporation was engaged in the business of selling non-financial products, (annuities, mutual funds and stocks) to the public. The Pamrapo Service Corporation has been inactive since May 2010. BCB New York Management, Inc. (the “New York Management Company”) was organized in October 2012 under New York law as a New York investment company primarily to hold various loan products, investment and mortgage-backed securities. BCB New York Management, Inc. has been inactive since 2012.  In September 2017, the Company issued and sold in a public offering an aggregate 3,265,306 shares of our common stock at a public offering price of $12.25 per share. The Shares were registered under the Securities Act of 1933, as amended, pursuant to the Company’s shelf registration statement on Form S-3 (Registration Statement No. 333-219617) which became effective on August 10, 2017. On September 19, 2017 the Company’s underwriters exercised, in part, their over-allotment option and purchased an additional 449,796 shares of common stock. The net proceeds totaled approximately $42.8 million, after deducting underwriting discounts and commissions and other offering expenses of $2.8 million payable by us.  In March and April 2017, the Company closed a private placement of Series D Noncumulative Perpetual Preferred Stock, resulting in the issuance of 954 shares of Series D 4.5% Noncumulative Perpetual Preferred Shares for gross proceeds of $9.54 million. The costs associated with the private placement were approximately $42,500 . The shares issued are callable by the Company after January 1 st , 2020, at $10,000 per share (liquidation preference value). There is no ability to convert the preferred shares to common shares. Dividends on the preferred shares, if and when declared, will be paid quarterly in arrears.  In March 2017, the Company amended its Restated Certificate of Incorporation to revise Article V to amend certain terms related to the Series C 6% Noncumulative Perpetual Preferred Stock and to create a new Series D 4.5% Noncumulative Perpetual Preferred Stock, which sets forth the number of shares to be included in such new series, and to fix the designation, powers, preferences, and rights of the shares of each such series and any qualifications, limitations or restrictions thereof. Such amendment to the Restated Certificate of Incorporation was approved by the Board of Directors of the Company on January 18, 2017.  In January and February 2017, the Company exercised its option to call all of its outstanding Series A and Series B Noncumulative Perpetual Preferred Stock, resulting in an aggregate redemption price of approximately $1,172,000 .  In January and February 2016, the Company granted its Series A Noncumulative Perpetual Preferred Stock (“Series A Shares”) shareholders the option to have their shares redeemed, resulting in an aggregate redemption price of $1,710,000 . Following the redemption of the 141 Series A Shares, 724 Series A Shares remain outstanding and subject to future redemption by the Company.  In November 2015, the Company issued and sold in a public offering an aggregate of 2,760,000 shares of the Company’s common stock at $10.00 per share. The shares included in the Company’s offering (the “Offering”) were registered under the Securities Act pursuant to the Company’s registration statement filed with the Securities and Exchange Commission (“SEC”) on Form S-3 (File No. 333-199424) and was filed with the SEC on October 16, 2014 and declared effective on November 4, 2014. The Form S-3 registered certain types of the Company’s securities, including the Company’s common stock, up to a total dollar amount of $50.0 million. Sandler O’Neill & Partners, L.P. acted as book-running manager and as representatives of the underwriters. Janney Montgomery Scott LLC and Oppenheimer & Company Inc. acted as co-managers for the offering. The offering commenced on October 28, 2015 and terminated on November 4 th , 2015.  The offering resulted in $25.6 million of net proceeds, after deducting underwriting discounts and commissions and other offering expenses of $2.0 million payable by us. None of the underwriting discounts and commissions or other offering expenses were incurred or paid to the Company’s directors or officers or their associates or to persons owning 10% or more of the Company’s common stock or to any of the Company’s affiliates.  On November 27, 2015, the Company closed a private placement of Series C Noncumulative Perpetual Preferred Stock, resulting in the issuance of 388 shares of Series C 6% Non-Cumulative Perpetual Preferred Shares (“Series C Shares”) for gross proceeds of $3.88 million through December 31, 2015. The costs associated with this private placement were approximately $32,000 . The Series C Shares issued are callable by the Company after December 31 st , 2017 at $10,000 per share (liquidation preference value). There is no ability to convert the Series C Shares to common shares. Dividends on the Series C Shares, if and when declared, will be paid quarterly in arrears.  On October 30, 2013, the Company amended its Restated Certificate of Incorporation to revise Article V to amend certain terms related to the Series A 6% Noncumulative Perpetual Preferred Stock and to create a new Series B 6% Noncumulative Perpetual Preferred Stock, which sets forth the number of shares to be included in such series, and to fix the designation, powers, preferences, and rights of the shares of each such series and any qualifications, limitations or restrictions thereof. Such amendment to the Restated Certificate of Incorporation was approved by the directors of the Company on February 20, 2013.  On October 31, 2013, the Company closed a private placement of Series B Noncumulative Perpetual Preferred Stock, resulting in the issuance of 478 shares of Series B 6% Non-Cumulative Perpetual Preferred Shares for gross proceeds of $4.78 million through December 31, 2014. The costs associated with the private placement were approximately $24,000 . The shares issued are callable by the Company after October 31, 2016, at $10,000 per share (liquidation preference value). There is no ability to convert the preferred shares to common shares. Dividends on the preferred shares, if and when declared, will be paid quarterly in arrears.  

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 - Summary of Significant Accounting Policies  Basis of Consolidated Financial Statement Presentation  The consolidated financial statements which include the accounts of the Company and its wholly-owned subsidiaries, the Bank, the New Jersey Investment Company, the New York Management Company and Pamrapo Service Corporation, have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). . All significant intercompany accounts and transactions have been eliminated in consolidation.  In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses for the periods then ended. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, the identification of other-than-temporary impairment of securities, the determination as to whether deferred tax assets are realizable, and the determination of the fair value of financial instruments. Management believes that the allowance for loan losses is adequate; no securities in unrealized loss positions are other-than-temporarily impaired; net deferred tax assets have been reduced to an amount which is more-likely-than-not realizable, and the fair values of financial instruments are appropriate. While management uses available information to recognize losses on loans, future additions to the allowance for loan losses may be necessary based on changes in economic conditions in the market area. Management’s assessment regarding impairment of securities is based on future projections of cash flow which are subject to change. The realizability of deferred tax assets is partially based on projections of future taxable income, which is subject to change. The determination of fair value requires the use of various inputs which are subject to frequent and ongoing changes.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for loan losses. Such agencies may require the Bank to recognize additions to the allowance based on their judgments about information available to them at the time of their examination.  In preparing these consolidated financial statements, the Company evaluated the events that occurred between December 31, 201 7 and the date these consolidated financial statements were issued.  Cash and Cash Equivalents  Cash and cash equivalents include cash and amounts due from depository institutions and interest-bearing deposits in other banks having original maturities of three months or less.  Securities Available for Sale and Held to Maturity  Investments in debt securities that the Bank has the positive intent and ability to hold to maturity are classified as held to maturity securities and reported at amortized cost. Debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities and reported at fair value, with unrealized holding gains and losses included in earnings. Debt and equity securities not classified as trading securities or as held to maturity securities are classified as available for sale securities (“AFS”) and reported at fair value, with unrealized holding gains or losses, net of applicable deferred income taxes, reported in the accumulated other comprehensive income (loss) component of stockholders’ equity. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.  If the fair value of a security is less than its amortized cost, the security is deemed to be impaired. Management evaluates all securities with unrealized losses quarterly to determine if such impairments are “temporary” or “other-than-temporary” in accordance with Accounting Standards Codification (“ASC”) Topic 320, Investments – Debt and Equity Securities. Accordingly, temporary impairments are accounted for based upon the classification of the related securities as either available for sale or held to maturity. Temporary impairments on available for sale securities are recognized, on a tax-effected basis, through Other Comprehensive Income (“OCI”) with offsetting entries adjusting the carrying value of the securities and the balance of deferred taxes. Conversely, the carrying values of held to maturity securities are not adjusted for temporary impairments. Information concerning the amount and duration of temporary impairments on both available for sale and held to maturity securities is disclosed in the notes to the consolidated financial statements.  Other-than-temporary impairments are accounted for based upon several considerations. First, other-than-temporary impairments on debt securities that the Company has decided to sell as of the close of a fiscal period, or will, more likely than not, be required to sell prior to the full recovery of fair value to a level equal to or exceeding amortized cost, are recognized in operations. If neither of these conditions regarding the likelihood of the sale of debt securities are applicable, then the other-than-temporary impairment is bifurcated into credit-related and noncredit-related components. A credit-related impairment generally represents the amount by which the present value of the cash flows that are expected to be collected on a debt security fall below its amortized cost. The noncredit-related component represents the remaining portion of the impairment not otherwise designated as credit-related. Credit-related, other-than-temporary impairments are recognized in earnings and noncredit-related, other-than-temporary impairments are recognized, net of deferred taxes, in OCI. Equity securities on which there is an unrealized loss that is deemed other-than-temporary impaired are written down to fair value with the write-down recognized in earnings.  Premiums and discounts on all securities are amortized/accreted to matu rity using the interest method. Interest and dividend income on securities, which includes amortization of premiums and accretion of discounts, are recognized in the consolidated financial statements when earned.  Loans Held For Sale  Loans held for sale consist primarily of residential mortgage loans intended for sale and are carried at the lower of cost or estimated fair market value using the aggregate method. These loans are generally sold with servicing rights released. Gains and losses recognized on loan sales are based upon the cash proceeds received and the cost of the related loans sold.  Note 2 - Summary of Significant Accounting Policies  Loans Receivable  Loans receivable are stated at unpaid principal balances, less net deferred loan origination fees and the allowance for loan losses. Loan origination fees and certain direct loan origination costs are deferred and amortized/accreted, as an adjustment of yield, over the contractual lives of the related loans.  The accrual of interest on loans that are contractually delinquent more than ninety days is discontinued and the related loans are placed on nonaccrual status. All payments received while in nonaccrual status, are applied to principal until the loan has performed as expected for a minimum of six (6) months or until the loan is determined to qualify for return to normal accruing status. Loans may be returned to accrual status when all the principal and interest contractually due are brought current and future payments are reasonably assured.  Acquired Loans  Loans that were acquired in acquisitions are recorded at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest.  The excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized into interest income over the remaining life of the loan. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable discount. The nonaccretable discount represents estimated future credit losses expected to be incurred over the life of the loan. Subsequent decreases to the expected cash flows require an evaluation to determine the need for an allowance for credit losses. Subsequent improvements in expected cash flows result in the reversal of a corresponding amount of the nonaccretable discount which is then reclassified as accretable discount that is recognized into interest income over the remaining life of the loan using the interest method. The evaluation of the amount of future cash flows that is expected to be collected is performed in a similar manner as that used to determine our allowance for credit losses. Charge-offs of the principal amount on acquired loans would be first applied to the nonaccretable discount portion of the fair value adjustment.  Acquired loans that met the criteria for nonaccrual of interest prior to the acquisition may be considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if the Bank can reasonably estimate the timing and amount of the expected cash flows on such loans and if the Bank expects to fully collect the new carrying va lue of the loans. As such, the Bank may no longer consider the loan to be nonaccrual or nonperforming and may accrue interest on these loans, including the impact of any accretable discount. The Bank has determined that it cannot reasonably estimate future cash flows on any such acquired loans that are past due 90 days or more and continue to treat them as non-accrual.  Allowance for Loan Losses  The allowance for loan losses is increased through provisions charged to operations and by recoveries, if any, on previously charged-off loans and reduced by charge-offs on loans which are determined to be a loss in accordance with Bank policy.  The allowance for loan losses is maintained at a level considered adequate to absorb loan losses. Management, in determining the allowance for loan losses, considers the risks inherent in its loan portfolio and changes in the nature and volume of its loan activities, along with the general economic and real estate market conditions. The Bank utilizes a two tier approach: (1) identification of impaired loans and establishment of specific loss allowances on such loans; and (2) establishment of general valuation allowances on the remainder of its loan portfolio. The Bank maintains a loan review system which allows for a periodic review of its loan portfolio and the early identification of potentially impaired loans. Such a system takes into consideration, but is not limited to, delinquency status, size of loans, types and value of collateral, and financial condition of the borrowers. Specific loan loss allowances are established for impaired loans based on a review of such information and/or appraisals of the underlying collateral. General loan loss allowances are based upon a combination of factors including, but not limited to, actual loan loss experience, composition of the loan portfolio, current economic conditions, and management’s judgment.  Although management believes that adequate specific and general allowances for loan losses are established, actual losses are dependent upon future events and, as such, further additions to the level of specific and general loan loss allowances may be necessary.  Impaired loans and performing TDRs are analyzed on an individual basis for collateral impairment or are measured 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. A loan evaluated for impairment is deemed to be impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due according to the contractu al terms of the loan agreement. All loans identified as impaired are evaluated independently. The Bank does not aggregate such loans for evaluation purposes. Payments received on impaired loans are applied to principal.  When a loan is placed on nonaccrual status, amounts previously accrued and recognized as income are reversed. All payments are applied to principal under the cost recovery method. Interest income on nonaccrual loans is recognized on a cash basis.  Concentration of Risk  Financial instruments which potentially subject the Company and its subsidiaries to concentrations of credit risk consist of cash and cash equivalents, investment and mortgage-backed securities and loans.  Cash and cash equivalents include amounts placed with highly rated financial institutions. Securities include securities backed by the U.S. Government and other highly rated instruments. The Bank’s lending activity is primarily concentrated in loans collateralized by real estate in the State of New Jersey. As a result, credit risk related to loans is broadly dependent on the real estate market and general economic conditions in the State.  Note 2 – Summary of Significant Accounting Policies (Continued )  Premises and Equipment  Land is carried at cost. Buildings, building improvements, leasehold improvements and furniture, fixtures and equipment are carried at cost, less accumulated depreciation and amortization. Significant renovations and additions are charged to the property and equipment account. Maintenance and repairs are charged to expense in the period incurred. Depreciation charges are computed on the straight-line method over the following estimated useful lives of each type of asset.    Years  Buildings 40  Building improvements 7 - 40  Furniture, fixtures and equipment 3 - 5  Leasehold improvements Shorter of useful life or term of lease  Federal Home Loan Bank (“FHLB”) of New York Stock  Federal law requires a member institution of the FHLB system to purchase and hold restricted stock of its district FHLB according to a predetermined formula. Such stock is carried at cost.  Management evaluates the FHLB of New York stock for impairment in accordance with guidance on accounting by entities that lend to or finance the activities of others. Management’s determination of whether this investment is impaired is based on their assessment of the ultimate recoverability of their cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of their cost is influenced by criteria such as (1) the significance of the decline in net assets of the FHLB of New York as compared to the capital stock amount for the FHLB of New York and the length of time this situation has persisted, (2) commitments by the FHLB of New York to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB of New York, and (3) the impact of legislative and regulatory changes on institutions and, accordingly, on the customer base of the FHLB of New York.  No impairment charges were recorded related to the FHLB of New York stock during 2017, 2016, or 2015.  O ther Real Estate Owned  Assets acquired through, or in lieu of, loan foreclosures are held for sale and are initially recorded at fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Costs relating to development and improvement of property are capitalized, whereas costs relating to the holding of property are expensed. At December 31, 2017, the Bank owned four properties totaling $532,000 . At December 31, 2016, the Bank owned n ine properties totaling $3,525,000 .  Interest Rate Risk  The Bank is principally engaged in the business of attracting deposits from the general public and using these deposits, together with other funds, to make loans secured by real estate and to purchase securities. The potential for interest-rate risk exists as a result of the difference in duration of the Bank’s interest-sensitive liabilities compared to its interest-sensitive assets. For this reason, management regularly monitors the maturity structure of the Bank’s interest-earning assets and interest-bearing liabilities in order to measure its level of interest-rate risk and to plan for future volatility.  Income Taxes  The Company and its subsidiaries file a consolidated federal income tax return. Income taxes are allocated to the Company and its subsidiaries based upon their respective income or loss included in the consolidated income tax return. Separate state income tax returns are filed by the Company and its subsidiaries.  Federal and state income tax expense has been provided on the basis of reported income. The amounts reflected on the tax returns differ from these provisions due principally to temporary differences in the reporting of certain items for financial reporting and income tax reporting purposes. The tax effect of these temporary differences is accounted for as deferred taxes applicable to future periods. Deferred income tax expense or (benefit) is determined by recognizing deferred tax assets and liabilities for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period that includes the enactment date. The realization of deferred tax assets is assessed and a valuation allowance provided, when necessary, for that portion of the asset which is not more likely than not to be realized.  On December 22, 2017 the Tax Cut and Jobs Act was signed into law. ASC 740 (Income Taxes) requires the recognition of the effect of changes in tax laws or rates in the period in which the legislation is enacted. The changes in the deferred tax assets and liabilities remeasured at the new 21% federal tax rate are reflected in income tax expense for fiscal year 2017.  Note 2 – Summary of Significant Accounting Policies (Continued)  The Company accounts for uncertainty in income taxes recognized in the consolidated financial statements in accordance with ASC Topic 740, Income Taxes , which prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, and also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that has a likelihood of being realized on examination of more than 50 percent. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. Under the “more-likely-than-not” threshold guidelines, the Company believes no significant uncertain tax positions exist, either individually or in the aggregate, that would give rise to the non-recognition of an existing tax benefit. The Company recognizes interest and penalties on unrecognized tax benefits in income taxes expense in the Consolidated Statement of Operations. The Company did not recognize any interest and penalties for the years ended December 31, 201 7 , 201 6 and 201 5 . The tax years subject to examination by the Federal taxing authority are the years ended December 31, 2016 , 2015 , and 2014 . The tax years subject to examination by the State taxing authority are the years ended December 31, 2016 , 2015 , 2014 , and 2013 . The Company was notified by the IRS in January 2017 that its 2014 consolidated income tax return was selected for examination, which began in March, 2017. The IRS will issue its final report in the first quarter of 2018. The preliminary findings are nominal.  Net Income per Common Share  Basic net income per common share is computed by dividing net income less dividends on preferred stock by the weighted average number of shares of common stock outstanding. The diluted net income per common share is computed by adjusting the weighted average number of shares of common stock outstanding to include the effects of outstanding stock options, if dilutive, using the treasury stock method. Dilution is not applicable in periods of net loss. For the years ended December 31, 2017, 2016 and 2015, the difference in the weighted average number of basic and diluted common shares was due solely to the effects of outstanding stock options. No adjustments to net income were necessary in calculating basic and diluted net income per share. For the years ended December 31, 2017, 2016 and 2015, the weighted average number of outstanding options considered to be anti-dilutive was 799,300 , 418,500 , and 260,500 , respectively.  Stock-Based Compensation Plans  The Company, under plans approved by its stockholders in 2011, 2003 and 2002, has granted stock options to employees and outside directors. See note 1 2 for additional information as to option grants. Compensation expense recognized for all option grants is net of estimated forfeitures and is recognized over the awards’ respective requisite service periods. The fair values relating to all options granted are estimated using a Black-Scholes option pricing model. Expected volatilities are based on historical volatility of our stock and other factors, such as implied market volatility using the respective options ’ expected term. The Company used the mid-point of the original vesting period and original option life to estimate the options’ expected term, which represents the period of time that the options granted are expected to be outstanding. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The Company recognizes compensation expense for the fair values of these option awards, which have graded vesting, on a straight-line basis over the requisite service period of these awards.  Benefit Plans  The Company acquired, through the merger with Pamrapo Bancorp, Inc., a non-contributory defined benefit pension plan covering all eligible employees of Pamrapo Savings Bank. Effective January 1, 2010, the defined benefit pension plan (the “Pension Plan”), was frozen by Pamrapo Savings Bank. All benefits for eligib le participants accrued in the Pension Plan to January 1, 2010 have been retained. The benefits are based on years of service and employee’s compensation. The Pension Plan is funded in conformity with funding requirements of applicable government regulations. Prior service costs for the Pension Plan generally are amortized over the estimated remaining service periods of employees. Additionally, with the merger with Pamrapo Bancorp, Inc., certain former employees of Pamrapo Savings Bank are covered under a Supplemental Executive Retirement Plan (“SERP”), an unfunded non-qualified deferred retirement plan. Participants who retire at the age of 65 (the “Normal Retirement Age”), are entitled to an annual retirement benefit equal to 75% of compensation reduced by their retirement plan annual benefits. Participants retiring before the Normal Retirement Age receive the same benefits reduced by a percentage based on years of service to the Company and the number of years prior to the Normal Retirement Age that participants retire.  Comprehensive Income (Loss)  The Company records unrealized gains and losses, net of deferred income taxes, on securities available for sale in accumulated other comprehensive income (loss). Realized gains and losses, if any, are reclassified to non-interest income upon sale of the related securities or upon the recognition of an impairment loss. Accumulated other comprehensive income (loss) also includes benefit plan amounts recognized in accordance with ASC 715, Compensation-Retirement Benefits , which reflect, net of tax, the unrecognized gains (losses) on the benefit plans.  Reclassification  Certain amounts as of and for the years ended December 31, 2016 and 2015 have been reclassified to conform to the current year’s presentation. These changes had no effect on the Company’s consolidated results of operations or financial position.  Recent Accounting Pronouncements  In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606), which will supersede the current revenue recognition requirements in Topic 605, Revenue Recognition. The ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU 2015-14 which deferred the effective date of ASU 2014-09 by one year. The scope of ASC 606 excludes net interest income or other revenues associated with financial assets and liabilities, including loans, leases, securities and derivatives, which would then exclude the majority of the Company's revenues. However, the recognition and measurement of certain non-interest income items such as gain on sale of other real estate owned and deposit-related fees, could be affected by ASC 606. The Company adopted the guidance effective January 1, 2018, using the modified retrospective method. Implementation of the guidance will not have a material impact on the Company's consolidated financial statements.  In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which will supersede the current lease requirements in Topic 840. The ASU requires lessees to recognize a right of use asset and related lease liability for all leases, with a limited exception for short-term leases. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the statement of income. Currently, leases are classified as either capital or operating, with only capital leases recognized on the balance sheet. The reporting of lease related expenses in the statements of operations and cash flows will be generally consistent with the current guidance. The new guidance will be effective for the Company in 2019. Once effective, the standard will be applied using a modified retrospective transition method to the beginning of the earliest period presented. The Company is currently assessing the impacts this new standard will have on its consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses. ASU 2016-13 requires entities to report “expected” credit losses on financial instruments and other commitments to extend credit rather than the current “incurred loss” model. These expected credit losses for financial assets held at the reporting date are to be based on historical experience, current conditions, and reasonable and supportable forecasts. This ASU will also require enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an entity’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the consolidated financial statements. The amendments are effective for the Company in 2020. The Company has begun evaluating the impact the adoption of ASU 2016-13 will have on its consolidated financial statements and results of operations. The effect of this change cannot be ascertained at this point, and will depend upon factors including asset components, asset quality and market conditions at the adoption date.  In May 2017, the FASB issued ASU 2017-09, “Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting”. The amendments in this update requires that an entity account for the effects of a modification unless the fair value of the modified award is the same as the fair value of the original award immediately before the original award is modified, the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified and the classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified. ASU 2017-09 is effective for the Company on a prospective basis in 2018. Due to prospective application, the new guidance is not expected to have an impact on the Company’s consolidated financial statements upon adoption.  ASU 2017-08, "Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities." ASU 2017-08 was issued to enhance the accounting for the amortization of premiums for purchased callable debt securities. This amendment requires that the amortization premium be shortened to the earliest call date. For public business entities, ASU 2017-08 is effective for fiscal years after December 15, 2018, and interim periods within those fiscal years. The Company is currently evaluating the impact of the adoptions of ASU 2017-08 on its consolidated financial statements. 

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Related Party Transactions [Abstract]
Related Party Transactions	Note 3 - Related Party Transactions  The Bank leases a property from New Bay LLC (“New Bay”), a limited liability company 100% owned by a majority of the Directors of the Bank. In conjunction with the lease, New Bay substantially removed the pre-existing structure on the site and constructed a new building suitable to the Bank for its banking operations. Under the terms of the lease, the cost of this project was reimbursed to New Bay by the Bank. The amount reimbursed, which occurred during the year 2000, was $943,000 , and is included in property and equipment under the caption “Building and improvements” (see Note 7).   On May 1, 2006, the Bank renegotiated the lease to a twenty-five year term. The Bank paid New Bay $165,000 a year ( $13,750 per month) which is included in the Consolidated Statements of Operations for 2017, 2016, and 2015, within occupancy expense of premises. The rent is to be adjusted every five years thereafter at the fair market rental value at the end of each preceding five year period. The Bank expects to pay New Bay $165,000 for the year 2018.  On February 8, 2012, the Bank entered into a two year lease, which has been extended, for a warehouse with a Director of the Bank. The purpose of the lease is to store documents, consumable supplies, equipment, and furniture not currently in use by the Bank. The Bank paid $20,400 a year, which is reflected in the Consolidated Statement of Operations for 2017, 2016 and 2015 within occupancy expense of premises. The Bank expects to pay $20,400 for the year 2018.  The Bank leases a property in Woodbridge, New Jersey from ACB Development LLC, a portion of which is owned by two Directors of the Bank and the Company. Payments under the lease currently total $14,508 per month. The Bank paid $173,207 , $172,352 , and $190,580 in rent in the years 2017, 2016 and 2015, which is reflected in the Consolidated Statement of Operations for 2017, 2016 and 2015 within occupancy expense of premises. The Bank expects to pay $174,092 for the year 2018.  On March 6, 2014, the Bank entered into a ten year lease of property in Rutherford, New Jersey with 190 Park Avenue, LLC, which is owned by two Directors of the Bank and the Company. The rent is $6,677 per month and lease payments of $92,635 , $33,350 and $33,350 were made in years 2017, 2016 and 2015, which is reflected in the 2017, 2016, and 2015 Consolidated Statement of Operations within occupancy expense of premises. The Bank expects to pay $80,122 for the year 2018.  On May 12 th , 2016, the Bank entered into a 5 year lease of property in Lyndhurst, New Jersey with 734 Ridge Realty, LLC, which is owned by two Directors of the Bank and the Company. The rent is $7,350 per month and lease payments of $88,200 and $44,100 were made in years 2017 and 2016, which is reflected in the Consolidated Statement of Operations for 2017 and 2016 within occupancy expense of premises. The Bank expects to pay $88,200 for the year 2018. 

Securities Available for Sale

Securities Available for Sale	12 Months Ended
	Dec. 31, 2017
Securities Available for Sale [Abstract]
Securities Available for Sale	Note 4- Securities Available for Sale  The following table presents by maturity the amortized cost and gross unrealized gains and losses on securities available for sale as of December 31, 201 7 and December 31, 201 6 . The preferred stock does not have a maturity date.        December 31, 2017  Gross Gross  Amortized Unrealized Unrealized  Cost Gains Losses Fair Value  (In Thousands)  Mortgage-backed securities:  Due after one year through five years $ 3,276 $ 4 $ 76 $ 3,204  Due after five years through ten years 622 - 10 612  Due after ten years 110,156 44 2,222 107,978   Municipal obligations:  Due within one year 2,506 - 4 2,502  Preferred Stock: - - - -  Due after 10 years 8,118 235 60 8,293  $ 124,678 $ 283 $ 2,372 $ 122,589     December 31, 2016  Gross Gross  Amortized Unrealized Unrealized  Cost Gains Losses Fair Value  (In Thousands)  Mortgage-backed securities  Due after five years through ten years $ 6,230 $ 23 $ 86 $ 6,167  Due after ten years 80,594 65 4,354 76,305   Municipal obligations:  Due within one year 6,968 - 7 6,961  Preferred Stock:  Due after 10 years 5,356 - 24 5,332  $ 99,148 $ 88 $ 4,471 $ 94,765  The expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations.  The unrealized losses, categorized by the length of time of continuous loss position, and fair value of related securities available for sale were as follows:     Less than 12 Months More than 12 Months Total  Fair Unrealized Fair Unrealized Fair Unrealized  Value Losses Value Losses Value Losses  (In Thousands)  December 31, 2017  Residential mortgage-backed securities $ 94,909 $ 1,951 $ 12,309 $ 357 $ 107,218 $ 2,308  Municipal obligations 2,502 4 - - 2,502 4  Preferred stock 3,469 60 - - 3,469 60  $ 100,880 $ 2,015 $ 12,309 $ 357 $ 113,189 $ 2,372    December 31, 2016  Residential mortgage-backed securities $ 74,672 $ 4,313 $ 3,379 $ 127 $ 78,051 $ 4,440  Municipal obligations 6,961 7 - - 6,961 7  Preferred stock 1,983 24 - - 1,983 24  $ 83,616 $ 4,344 $ 3,379 $ 127 $ 86,995 $ 4,471 Management evaluates securities for other-than-temporary impairment (“OTTI”) at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. 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 issu er, and (3) whether the Company intends to sell the security or more likely than not will be required to sell the security before its anticipated recovery. At December 31, 201 7 and 201 6 , management performed an assessment for possible OTTI of the Company’s residential mortgage-backed securities , municipal obligations, and preferred stock on an issue-by-issue basis, relying on information obtained from various sources, including publicly available financial data, ratings by external agencies, brokers and other sources. The extent of individual analysis applied to each security depended on the size of the Company’s investment, as well as management’s perception of the credit risk associated with each security. Based on the results of the assessment, management believes impairment of these residential mortgage-backed securities, at December 31, 201 7 to be temporary.

Loans Receivable and Allowance

Loans Receivable and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2017
Loans Receivable and Allowance for Loan Losses [Abstract]
Loans Receivable and Allowance for Loan Losses	 Note 5 - Loans Receivable and Allowance for Loan Losses  The following table presents the recorded investment in loans receivable at December 31, 201 7 and December 31, 201 6 by segment and class:     December 31, 2017 December 31, 2016  (In Thousands)  Originated loans:  Residential one-to-four family $ 182,544 $ 142,081  Commercial and multi-family 1,213,390 1,056,806  Construction 50,497 70,867  Commercial business (1) 66,775 63,444  Home equity (2) 38,725 32,417  Consumer 1,183 1,269   Sub-total 1,553,114 1,366,884   Acquired loans recorded at fair value:  Residential one-to-four family 47,808 56,310  Commercial and multi-family 46,609 60,422  Construction - -  Commercial business (1) 4,057 4,460  Home equity (2) 8,955 13,877  Consumer 122 225   Sub-total 107,551 135,294   Acquired loans with deteriorated credit:  Residential one-to-four family 1,413 1,443  Commercial and multi-family 731 753  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total 2,144 2,196   Total Loans 1,662,809 1,504,374   Less:  Deferred loan fees, net (1,757) (2,006)  Allowance for loan losses (17,375) (17,209)   (19,132) (19,215)    Total Loans, net $ 1,643,677 $ 1,485,159 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  At December 31, 201 7 and 201 6 , loans serviced by the Bank for the benefit of others totaled approximately $ 256.9 million an d $184.1 million , respectively.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table presents the unpaid principal balance and the related recorded investment of acquired loans included in loans receivable in accompanying Consolidated Statements of Financial Condition. (In Thousands):      December 31, December 31,  2017 2016   Unpaid principal balance $ 114,542 $ 140,049  Recorded investment 109,695 137,490     The following table presents changes in the accretable discount on loans acquired for the years ended December 31, 201 7 and 201 6 . (In Thousands):     Years Ended December 31,  2017 2016   Balance, Beginning of Period $ 39,119 $ 53,612  Accretion (10,983) (14,976)  Net Reclassification from Non-Accretable Yield 328 483  Balance, End of Period $ 28,464 $ 39,119      The following table presents changes in the non-accretable yield on loans acquired for the years ended December 31, 201 7 and 201 6 . (In Thousands):      Years Ended December 31,  2017 2016   Balance, Beginning of Period $ 2,558 $ 3,041  Net Reclassification to Accretable Difference (328) (483)  Balance, End of Period $ 2,230 $ 2,558   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The Bank grants loans to its officers and dire ctors and to their associates. The activity with respect to loans to directors, officers and associates of such persons, is as follows:       Years Ended December 31,  2017 2016   (In Thousands)   Balance – beginning $ 8,552 $ 12,444  Loans originated - 386  Collections of principal (1,075) (1,461)  Change in related party status 13,624 (2,817)   Balance - ending $ 21,101 $ 8,552     Allowance for Loan Losses  Management reviews the adequacy of the allowance on at least a quarterly basis to ensure that the provision for loan losses has been charged against earnings in an amount necessary to maintain the allowance at a level that is adequate based on management’s assessment of probable estimated losses. The Company’s methodology for assessing the adequacy of the allowance for loan losses co nsists of several key elements. These elements include a general allocated reserve for performing loans , a specific reserve for impaired loans and an unallocated portion.  The Company consistently applies the follo wing comprehensive methodology. During the quarterly review of the allowance for loan losses, the Company considers a variety of qualitative factors that include: • General economic conditions. • Trends in charge-offs. • Trends and levels of delinquent loans. • Trends and levels of non-performing loans, including loans over 90 days delinquent. • Trends in volume and terms of loans. • Levels of allowance for specific classified loans. • Credit concentrations.  The methodology includes the segregation of the loan portfolio into two divisions. Loans that are performing and loans that are impaired. Loans which are performing are evaluated homogeneously by loan class or loan type. The allowance for performing loans is evaluated based on histori cal loan experience, including consideration of peer loss analysis, with an adjustment for qualitative factors referred to above . Impaired loans are loans which are more than 90 days delinquent or troubled debt restructured. These loans are individually evaluated for loan loss either by current appraisal, or net present value. Management reviews the overall estimate for feasibility and bases the loan loss provision accordingly.  The loan portfolio is segmented into the following loan classes, where the risk level for each class is analyzed when determining the allowance for loan losses:  Residential single family real estate loans involve certain risks such as interest rate risk and risk of non-repayment. Adjustable-rate residential family real estate loans decreases the interest rate risk to the Bank that is associated with changes in interest rates but involve other risks, primarily because as interest rates rise, the payment by the borrower rises to the extent permitted by the terms of the loan, thereby increasing the potential for default. At the same time, the marketability of the underlying property may be adversely affected by higher interest rates. Repayment risk may be affected by a number of factors including, but not necessarily limited to, job loss, divorce, illness and personal bankruptcy of the borrower.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  Construction lending is generally considered to involve a greater potential risk due to the concentration of principal in a limited number of loans and borrowers and the effects of the general economic conditions on developers and builders. Moreover, a construction loan can involve additional risks because of the inherent difficulty in estimating both a property’s value at completion of the project and the estimated cost (including interest) of the project. The nature of these loans is such that they are generally difficult to evaluate and monitor. In addition, speculative construction loans to a builder are not necessarily pre-sold and thus pose a greater potential risk to the Bank than construction loans to individuals on their personal residence.  Commercial and multi-family real estate lending entails additional risks as compared with residential family property lending. Such loans typically involve large loan balances to single borrowers or groups of related borrowers. The payment experience on such loans is typically dependent on the successful operation of the real estate project. The success of such projects is sensitive to changes in supply and demand conditions in the market for commercial real estate as well as economic conditions generally.  Commercial business lending, including lines of credit, is generally considered to have greater potential risk due to the concentration of principal in a limited number of loans and borrowers and the effects of general economic conditions on the business. Commercial business loans are primarily secured by inventories and other business assets. In most cases, any repossessed collateral for a defaulted commercial business loans will not provide an adequate source of repayment of the outstanding loan balance.  Home equity lending entails certain risks such as interest rate risk and risk of non-repayment. The marketability of the underlying property may be adversely affected by higher interest rates, decreasing the collateral securing the loan. Repayment risk can be affected by job loss, divorce, illness and personal bankruptcy of the borrower. Home equity line of credit lending entails securing an equity interest in the borrower’s home. In many cases, the Bank’s position in these loans is as a junior lien holder to another institution’s superior lien. This type of lending is often priced on an adjustable rate basis with the rate set at or above a predefined index. Adjustable-rate loans decreases the interest rate risk to the Bank that is associated with changes in interest rates but involve other risks, primarily because as interest rates rise, the payment by the borrower rises to the extent permitted by the terms of the loan, thereby increasing the potential for default.  Other consumer loans generally have more credit risk because of the type and nature of the collateral and, in certain cases, the absence of collateral. Consumer loans generally have shorter terms and higher interest rates than other lending. In addition, consumer lending collections are dependent on the borrower’s continuing financial stability, and thus are more likely to be adversely effected by job loss, divorce, illness and personal bankruptcy. In most cases, any repossessed collateral for a defaulted consumer loan will not provide an adequate source of repayment of the outstanding loan.  The Company also maintains an unallocated allowance. The unallocated allowance is used to cover any factors or conditions which may cause a potential loan loss but are not specifically identifiable. It is prudent to maintain an unallocated portion of the allowance because no matter how detailed an analysis of potential loan losses is performed, these estimates lack some element of precision. Management must make estimates using assumptions and information that is often subjective and changing rapidly.  Criticized and Classified Assets . Our policies provide for a classifica tion system for problem assets. Under this classification system, problem assets are classified as “substandard,” “doubtful, ” or “loss.”  When we classify problem assets, we may establish general allowances for loan losses in an amount deemed prudent by management. General allowances represent loss allowances which have been established to recognize the inherent risk associated with lending activities, but which, unlike specific allowances, have not been allocated to particular problem assets. A portion of general loss allowances established to cover possible losses related to assets classified as substandard or doubtful may be included in determining our regulatory capital. Specific valuation allowances for loan losses generally do not qualify as regulatory capital. As of December 31, 2017, we had $49,000 in assets classified as losses, of which $49,000 were classified as impaired, and $21.7 million in assets classified as substandard, of which $21.7 million were classified as impaired . The loans classified as substandard represent primarily commercial loans secured either by residential real estate, commercial real estate or heavy equipment. The loans that have been classified substandard were classified as such primarily due to payment status, because updated financial information has not been timely provided, or the collateral underlying the loan is in the process of being revalued.  The Company’s internal credit risk grades are based on the definitions currently utilized by the banking regulatory agencies. The grades assigned and definitions are as follows, and loans graded excellent, above average, good and watch list (risk ratings 1-5 ) are treated as “pass” for grading purposes. The “criticized” risk rating (6) and the “classified” risk rating (7-9) are detailed below:  6 – Special Mention- Loans currently performing but with potential weaknesses including adverse trends in borrower’s operations, credit quality, financial strength, or possible collateral deficiency.  7 – Substandard - Loans that are inadequately protected by current sound worth, paying capacity, and collateral support. Loans on “nonaccrual” status. The loan needs special and corrective attention.  8 – Doubtful - Weaknesses in credit quality and collateral support make full collection improbable, but pending reasonable factors remain sufficient to defer the loss status.  9 – Loss - Continuance as a bankable asset is not warranted. However, this does not preclude future attempts at partial recovery.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 7 and recorded investment in loans receivable at December 31, 201 7 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):      Commercial & Commercial Home  Residential Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans $ 2,098 $ 10,621 $ 736 $ 3,079 $ 374 $ 2 $ 69 $ 16,979  Acquired loans recorded at fair value 170 - - - 4 - - 174  Acquired loans with deteriorated credit 43 13 - - - - - 56  Beginning Balance, January 1, 2017 2,311 10,634 736 3,079 378 2 69 17,209   Charge-offs:  Originated Loans - 190 - 1,553 - 11 - - 1,754  Acquired loans recorded at fair value 336 - - - 54 - - - 390  Acquired loans with deteriorated credit - - - - - - - - -  Sub-total 336 190 - 1,553 54 11 - 2,144   Recoveries:  Originated Loans - 182 - - - - - 182  Acquired loans recorded at fair value - - - - - - - -  Acquired loans with deteriorated credit - - 18 - - - 18  Sub-total - 182 - 18 - - - 200   Provisions:  Originated Loans 270 1,043 (218) 492 (36) 15 108 1,674  Acquired loans recorded at fair value 408 - - - 50 - - 458  Acquired loans with deteriorated credit (3) (1) - (18) - - - (22)  Sub-total 675 1,042 (218) 474 14 15 108 2,110   Totals:  Originated Loans 2,368 11,656 518 2,018 338 6 177 17,081  Acquired loans recorded at fair value 242 - - - - - - 242  Acquired loans with deteriorated credit 40 12 - - - - - 52  Ending Balance, December 31, 2017 $ 2,650 $ 11,668 $ 518 $ 2,018 $ 338 $ 6 $ 177 $ 17,375   Loans Receivables:   Ending Balance Originated Loans 182,544 1,213,390 50,497 66,775 38,725 1,183 - 1,553,114  Ending Balance Acquired Loans 47,808 46,609 - 4,057 8,955 122 - 107,551  Ending Balance Acquired loans with deteriorated credit 1,413 731 - - - - - 2,144  Total Gross Loans $ 231,765 $ 1,260,730 $ 50,497 $ 70,832 $ 47,680 $ 1,305 - $ 1,662,809   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans 7,944 12,212 - 1,780 1,042 - - 22,978  Ending Balance Acquired Loans 7,548 5,032 - - 302 - - 12,882  Ending Balance Acquired loans with deteriorated credit 1,413 513 - - - - - 1,926  Ending Balance Loans individually evaluated  for impairment $ 16,905 $ 17,757 $ - $ 1,780 $ 1,344 $ - $ - $ 37,786   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans 174,600 1,201,178 50,497 64,995 37,683 1,183 - 1,530,136  Ending Balance Acquired Loans 40,260 41,577 - 4,057 8,653 122 - 94,669  Ending Balance Acquired loans with deteriorated credit - 218 - - - - - 218  Ending Balance Loans collectively evaluated  for impairment $ 214,860 $ 1,242,973 $ 50,497 $ 69,052 $ 46,336 $ 1,305 $ - $ 1,625,023 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 6 and recorded investment in loans receivable at December 31, 201 6 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):    Commercial & Commercial Home  Residential Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans $ 2,107 $ 11,643 $ 722 $ 1,749 $ 369 $ 879 $ 168 $ 17,637  Acquired loans recorded at fair value 270 17 - - 50 - - 337  Acquired loans with deteriorated credit 47 14 - 4 3 - - 68  Beginning Balance, January 1, 2016 2,424 11,674 722 1,753 422 879 168 18,042   Charge-offs:  Originated Loans - 367 - 160 - - - - 527  Acquired loans recorded at fair value 459 38 - 3 54 - - - 554  Acquired loans with deteriorated credit - - - - - - - - -  Sub-total 459 405 - 163 54 - - 1,081   Recoveries:  Originated Loans - 74 - - - - - 74  Acquired loans recorded at fair value - 4 - - 14 - - 18  Acquired loans with deteriorated credit - - - 129 - - - 129  Sub-total - 78 - 129 14 - - 221   Provisions:  Originated Loans (9) (729) 14 1,490 5 (877) (99) (205)  Acquired loans recorded at fair value 359 17 - 3 (6) - - 373  Acquired loans with deteriorated credit (4) (1) - (133) (3) - - (141)  Sub-total 346 (713) 14 1,360 (4) (877) (99) 27   Totals:  Originated Loans 2,098 10,621 736 3,079 374 2 69 16,979  Acquired loans recorded at fair value 170 - - - 4 - - 174  Acquired loans with deteriorated credit 43 13 - - - - - 56  Ending Balance, December 31, 2016 $ 2,311 $ 10,634 $ 736 $ 3,079 $ 378 $ 2 $ 69 $ 17,209   Loans Receivables:   Ending Balance Originated Loans 142,081 1,056,806 70,867 63,444 32,417 1,269 - 1,366,884  Ending Balance Acquired Loans 56,310 60,422 - 4,460 13,877 225 - 135,294  Ending Balance Acquired loans with deteriorated credit 1,443 753 - - - - - 2,196  Total Gross Loans $ 199,834 $ 1,117,981 $ 70,867 $ 67,904 $ 46,294 $ 1,494 $ - $ 1,504,374   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans 10,651 12,325 6 4,088 1,362 - - 28,432  Ending Balance Acquired Loans 7,600 6,356 - - 1,065 - - 15,021  Ending Balance Acquired loans with deteriorated credit 1,443 523 - - - - - 1,966  Ending Balance Loans individually evaluated  for impairment $ 19,694 $ 19,204 $ 6 $ 4,088 $ 2,427 $ - $ - $ 45,419   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans 131,430 1,044,481 70,861 59,356 31,055 1,269 - 1,338,452  Ending Balance Acquired Loans 48,710 54,066 - 4,460 12,812 225 - 120,273  Ending Balance Acquired loans with deteriorated credit - 230 - - - - - 230  Ending Balance Loans collectively evaluated  for impairment $ 180,140 $ 1,098,777 $ 70,861 $ 63,816 $ 43,867 $ 1,494 $ - $ 1,458,955 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 5 and recorded investment in loans receivable at December 31, 201 5 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):    Commercial Commercial Home  Residential & Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans: $ 2,364 $ 10,028 $ 1,080 $ 876 $ 333 $ 449 $ 121 $ 15,251  Acquired loans recorded at fair value: 417 102 - - 58 - - 577  Acquired loans with deteriorated credit: 64 23 - 233 3 - - - 323  Beginning Balance, January 1, 2015 2,845 10,153 1,080 1,109 394 449 121 16,151   Charge-offs:  Originated Loans: - 10 - 80 - - - - 90  Acquired loans recorded at fair value: 67 - - - 106 - - - 173  Acquired loans with deteriorated credit: - - - 199 - - - - 199  Sub-total: 67 10 - 279 106 - - 462   Recoveries:  Originated Loans: - 70 - - - - - 70  Acquired loans recorded at fair value: - - - - 3 - - 3  Acquired loans with deteriorated credit: - - - - - - - -  Sub-total: - 70 - - 3 - - 73   Provisions:  Originated Loans: (257) 1,555 (358) 953 36 430 47 2,406  Acquired loans recorded at fair value: (80) (85) - - 95 - - (70)  Acquired loans with deteriorated credit: (17) (9) - (30) - - - (56)  Sub-total: (354) 1,461 (358) 923 131 430 47 2,280   Totals:  Originated Loans: 2,107 11,643 722 1,749 369 879 168 17,637  Acquired loans recorded at fair value: 270 17 - - 50 - - 337  Acquired loans with deteriorated credit: 47 14 - 4 3 - - 68  Ending Balance, December 31, 2015 $ 2,424 $ 11,674 $ 722 $ 1,753 $ 422 $ 879 $ 168 $ 18,042   Loans Receivables:   Ending Balance Originated Loans: 117,165 982,828 64,008 70,340 31,237 2,365 - 1,267,943  Ending Balance Acquired Loans: 67,587 79,308 - 4,281 18,851 263 - 170,290  Ending Balance Acquired loans with deteriorated credit: 1,474 669 - 167 71 - - 2,381  Total Gross Loans: $ 186,226 $ 1,062,805 $ 64,008 $ 74,788 $ 50,159 $ 2,628 $ - $ 1,440,614   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans: 9,120 14,681 - 4,203 1,456 1,463 - 30,923  Ending Balance Acquired Loans: 9,885 6,775 - - 1,363 - - 18,023  Ending Balance Acquired loans with deteriorated credit: 1,474 426 - 167 71 - - 2,138  Ending Balance Loans individually evaluated  for impairment: $ 20,479 $ 21,882 $ - $ 4,370 $ 2,890 $ 1,463 $ - $ 51,084   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans: 108,045 968,147 64,008 66,137 29,781 902 - 1,237,020  Ending Balance Acquired Loans: 57,702 72,533 - 4,281 17,488 263 - 152,267  Ending Balance Acquired loans with deteriorated credit: - 243 - - - - - 243  Ending Balance Loans collectively evaluated  for impairment: $ 165,747 $ 1,040,923 $ 64,008 $ 70,418 $ 47,269 $ 1,165 $ - $ 1,389,530    __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.    Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The table below sets forth the amounts and types of non-accrual loans in the Bank’s loan portfolio, at December 31, 201 7 and 201 6 , respectively. Loans are placed on non-accrual status when they become more than 90 days delinquent, or when the collection of principal and/or interest become doubtful. As of December 31, 201 7 and 201 6 , non-accrual loans differed from the amount of total loans past due greater than 90 days due to troubled debt restructuring of loans which are maintained on non-accrual status for a minimum of six months until the borrower has demonstrated its ability to satisfy the terms of the restructured loan.       As of December 31, 2017 As of December 31, 2016  (In Thousands) (In Thousands)  Non-Accruing Loans:   Originated loans:  Residential one-to-four family $ 2,545 $ 3,693  Commercial and multi-family 6,762 5,437  Construction - -  Commercial business (1) 299 726  Home equity (2) 201 416  Consumer - 6   Sub-total: $ 9,807 $ 10,278   Acquired loans recorded at fair value:  Residential one-to-four family $ 2,372 $ 3,429  Commercial and multi-family 850 1,182  Construction - -  Commercial business (1) - -  Home equity (2) 7 763  Consumer - -   Sub-total: $ 3,229 $ 5,374   Acquired loans with deteriorated credit:  Residential one-to-four family $ - $ -  Commercial and multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: $ - $ -   Total $ 13,036 $ 15,652 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Had non-accrual loans been performing in accordance with their original terms, the interest income recognized for the years ended December 31, 2017, 2016 and 2015 would have been approximately $919,000 , $1.06 million and $1. 13 million, respectively. Interest income recognized on such loans was approximately $622,000 , $798,000 and $326,000 respectively. The Bank is not committed to lend additional funds to the borrowers whose loans have been placed on a nonaccrual status. At December 31, 2017 and 2016, there were $315,000 and $2.8 million, respectively, of loans which were more than ninety days past due and still accruing interest.       Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the recorded investment and unpaid principal balances where there is no related allowance on impaired loans by portfolio class for the years ended December 31, 201 7 and December 31, 201 6 . (In Thousands):       As of December 31, 2017 As of December 31, 2016  Recorded Unpaid Principal Related Recorded Unpaid Principal Related  Originated loans Investment Balance Allowance Investment Balance Allowance  with no related allowance recorded:   Residential one-to-four family $ 2,073 $ 2,236 $ - $ 5,158 $ 5,341 $ -  Commercial and multi-family 12,212 12,763 - 10,498 10,722 -  Construction - - - 6 6 -  Commercial business (1) 181 908 - 1,022 1,966 -  Home equity (2) 885 932 - 1,022 1,101 -  Consumer - - - - - -   Sub-total: $ 15,351 $ 16,839 $ - $ 17,706 $ 19,136 $ -   Acquired loans recorded at fair  value with no related allowance  recorded:   Residential one-to-four family $ 4,119 $ 4,285 $ - $ 5,577 $ 6,149 $ -  Commercial and Multi-family 3,772 3,773 - 5,575 5,710 -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 216 268 - 545 650 -  Consumer - - - - - -   Sub-total: $ 8,107 $ 8,326 $ - $ 11,697 $ 12,509 $ -   Acquired loans with deteriorated  credit with no related allowance  recorded:   Residential one-to-four family $ 1,413 $ 2,031 $ - $ 1,443 $ 2,069 $ -  Commercial and Multi-family 513 537 - 523 552 -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ 1,926 $ 2,568 $ - $ 1,966 $ 2,621 $ -   Total Impaired Loans  with no related allowance recorded: $ 25,384 $ 27,733 $ - $ 31,369 $ 34,266 $ -   __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the recorded investment, unpaid principal balance, and the related allowance on impaired loans by portfolio class for the years ended December 31, 201 7 and December 31, 201 6 . (In Thousands):     As of December 31, 2017 As of December 31, 2016  Recorded Unpaid Principal Related Recorded Unpaid Principal Related  Originated loans Investment Balance Allowance Investment Balance Allowance  with an allowance recorded:   Residential one-to-four family $ 5,871 $ 5,871 $ 508 $ 5,493 $ 5,493 $ 496  Commercial and Multi-family - - - 1,827 1,866 380  Construction - - - - - -  Commercial business (1) 1,599 2,431 1,033 3,066 4,006 2,359  Home equity (2) 157 157 25 340 340 32  Consumer - - - - - -   Sub-total: $ 7,627 $ 8,459 $ 1,566 $ 10,726 $ 11,705 $ 3,267   Acquired loans recorded at fair  value with an allowance  recorded:   Residential one-to-four family $ 3,429 $ 3,580 $ 281 $ 2,023 $ 2,080 $ 202  Commercial and Multi-family 1,260 1,313 179 781 781 37  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 86 86 7 520 571 24  Consumer - - - - - -   Sub-total $ 4,775 $ 4,979 $ 467 $ 3,324 $ 3,432 $ 263   Acquired loans with deteriorated  credit with an allowance  recorded:   Residential one-to-four family $ - $ - $ - $ - $ - $ -  Commercial and Multi-family - - - - - -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ - $ - $ - $ - $ - $ -   Total Impaired Loans  with an allowance recorded: $ 12,402 $ 13,438 $ 2,033 $ 14,050 $ 15,137 $ 3,530   Total Impaired Loans  with no related allowance recorded: $ 25,384 $ 27,733 $ - $ 31,369 $ 34,266 $ -   Total Impaired Loans: $ 37,786 $ 41,171 $ 2,033 $ 45,419 $ 49,403 $ 3,530  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the average recorded investment and actual interest income recognized on impaired loans with no related allowance recorded by portfolio class for the years ended December 31, 201 7 and 201 6 . (In Thousands):      Years Ended December 31,  2017 2017 2016 2016   Average Interest Average Interest  Recorded Income Recorded Income  Originated loans Investment Recognized Investment Recognized  with no related allowance recorded:   Residential one-to-four family $ 2,859 $ 39 $ 4,613 $ 281  Commercial and multi-family 12,351 271 10,820 563  Construction - - 746 -  Commercial business (1) 441 - 1,678 116  Home equity (2) 878 38 1,002 60  Consumer - - 2 -   Sub-total: $ 16,529 $ 348 $ 18,861 $ 1,020   Acquired loans recorded at fair value  with no related allowance recorded:   Residential one-to-four family $ 4,758 $ 138 $ 5,234 $ 345  Commercial and Multi-family 3,996 220 5,055 332  Construction - - - -  Commercial business (1) - - - -  Home equity (2) 454 13 583 37  Consumer - - - -   Sub-total: $ 9,208 $ 371 $ 10,872 $ 714   Acquired loans with deteriorated  credit with no related allowance  recorded:   Residential one-to-four family $ 1,423 $ 87 $ 1,455 $ 89  Commercial and Multi-family 517 27 527 28  Construction - - - -  Commercial business (1) - - - -  Home equity (2) - - 19 -  Consumer - - - -   Sub-total: $ 1,940 $ 114 $ 2,001 $ 117   Total Impaired Loans  with no related allowance recorded: $ 27,677 $ 833 $ 31,734 $ 1,851  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.    Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the average recorded investment and actual interest income recognized on impaired loans with allowance recorded by portfolio class for the years ended December 31, 201 7 and 201 6 . (In Thousands):     Years Ended December 31,  2017 2017 2016 2016   Average Interest Average Interest  Recorded Income Recorded Income  Originated loans Investment Recognized Investment Recognized  with an allowance recorded:   Residential one-to-four family $ 6,024 $ 213 $ 5,564 $ 253  Commercial and Multi-family 421 - 3,122 39  Construction - - - -  Commercial business (1) 2,958 81 2,406 139  Home equity (2) 221 6 278 16  Consumer - - 632 -   Sub-total: $ 9,624 $ 300 $ 12,002 $ 447    Acquired loans recorded at fair value  with an allowance recorded:   Residential one-to-four family $ 2,989 $ 118 $ 3,342 $ 69  Commercial and Multi-family 1,601 38 1,077 44  Construction - - - -  Commercial business (1) - - - -  Home equity (2) 96 6 674 17  Consumer - - - -   Sub-total $ 4,686 $ 162 $ 5,093 $ 130   Acquired loans with deteriorated credit  with an allowance recorded:   Residential one-to-four family $ - $ - $ - $ -  Commercial and Multi-family - - - -  Construction - - - -  Commercial business (1) - - 41 -  Home equity (2) - - - -  Consumer - - - -   Sub-total: $ - $ - $ 41 $ -   Total Impaired Loans  with an allowance recorded: $ 14,310 $ 462 $ 17,136 $ 577  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table presents the total troubled debt restructured loans at December 31, 201 7 , excluding the purchase impairment mark on the acquired loans with deteriorated credit:      Accrual Non-accrual Total  December 31, 2017 # of Loans Amount # of Loans Amount # of Loans Amount  (Actual) (In Thousands) (Actual) (In Thousands) (Actual) (In Thousands)  Originated loans:  Residential one-to-four family 5 $ 2,352 2 $ 1,086 7 $ 3,438  Commercial and multi-family 8 4,846 8 5,416 16 10,262  Construction - - - - - -  Commercial business (1) 1 411 2 57 3 468  Home equity (2) 5 786 1 44 6 830  Consumer - - - - - -   Sub-total: 19 $ 8,395 13 $ 6,603 32 $ 14,998   Acquired loans recorded at fair value:  Residential one-to-four family 21 $ 4,992 4 $ 1,215 25 $ 6,207  Commercial and Multi-family 11 3,840 1 590 12 4,430  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 2 262 - - 2 262  Consumer - - - - - -   Sub-total: 34 $ 9,094 5 $ 1,805 39 $ 10,899   Acqui

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2017
Premises and Equipment [Abstract]
Premises and Equipmentt	Note 6 - Premises and Equipment       December 31,  2017 2016  (In Thousands)   Land $ 2,116 $ 2,116  Buildings and improvements 14,853 14,662  Leasehold improvements 5,968 4,987  Furniture, fixtures and equipment 10,800 10,064   33,737 31,829  Accumulated depreciation and amortization (14,969) (12,447)   $ 18,768 $ 19,382  Depreciation and amortization expense for the years ended December 31, 201 7 , 201 6 and 201 5 was $2,522,000 , $2,422,000 and $2,149,000 , respectively. Buildings and improvements include a building constructed on property leased from a related party (see Note 3).  Rental expenses , included in occupancy expense of premises, related to the occupancy of premises and related shared costs for common areas totaled $2,448,000 , $2,410,000 , and $1,990,000 for the years ended December 31, 201 7 , 201 6 , and 201 5 , respectively. The minimum obligation under non-cancelable lease agreements expiring through December 31, 2032, for each of the years ended December 31 is as follows (In Thousands):       2018 $ 2,399  2019 2,065  2020 1,968  2021 1,728  2022 1,553  Thereafter 4,414   $ 14,127 

Interest Receivable

Interest Receivable	12 Months Ended
	Dec. 31, 2017
Interest Receivable [Abstract]
Interest Receivable	Note 7 - Interest Receivable  The distribution of interest receivable at December 31, 2017 and 2016 was as follows:     December 31,  2017 2016  (In Thousands)   Loans $ 5,845 $ 5,359  Securities 308 214   $ 6,153 $ 5,573 

Deposits

Deposits	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Deposits	Note 8 – Deposits  The distribution of deposits at December 31, 2017 and 2016 were as follows:      December 31,  2017 2016  (In Thousands)   Demand:  Non-interest bearing $ 201,043 $ 183,821  Interest bearing 297,040 281,773  Money market 258,632 125,614  756,715 591,208   Savings and club 148,022 260,122  Certificates of deposit 664,633 540,875   $ 1,569,370 $ 1,392,205  Deposits of certain municipalities and local government agencies are collateralized by $ 63 million of investment securities and by a $46 million Municipal Letter of Credit with the Federal Home Loan Bank (“FHLB”).  At December 31, 201 7 and 201 6 , certificates of deposit of $ 250,000 or more totaled approximately $198.5 million and $172.5 million, respectively.  At December 31, 2017, deposits from officers, directors and their associates totaled approximately $7.2 million.  The scheduled maturities of certificates of deposit at December 31, 201 7 , were as follows (In thousands):        Amount    2018 $ 419,586  2019 127,723  2020 64,693  2021 31,562  2022 21,069  Thereafter -  $ 664,633    

Short-Term Debt and Long-Term D

Short-Term Debt and Long-Term Debt	12 Months Ended
	Dec. 31, 2017
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Short-Term Debt and Long-Term Debt	Note 9 - Short-Term Debt and Long-Term Debt  Information regarding short-term borrowings is as follows:      December 31,  2017 2016 2015   Amount Amount Amount  ( In Thousands)  Balance at end of period $ - $ 20,000 $ -  Average balance outstanding during the year $ 1,016 $ 103 $ 595  Highest month-end balance during the year $ 35,000 $ 20,000 $ 3,000  Average interest rate during the year 1.02 % 0.88 % 0.37 %  Weighted average interest rate at year-end - % 1 % - %    Long-term debt consists of the following:    December 31,  2017 2016  Weighted Average Rate Amount ($000s) Weighted Average Rate Amount ($000s)  Federal Home Loan Bank Advances:  Maturing by December 31,   2017 - % $ - 4.45 % $ 55,000[  2018 1.41 25,000 1.41 25,000  2019 1.86 50,000 1.85 23,000  2020 1.68 40,000 1.46 20,000  2021 1.83 38,000 1.76 10,000  2022 2.03 32,000 1.98 22,000   1.78 % $ 185,000 2.66 % $ 155,000  At December 31, 201 7 and 201 6 loans with carrying values of approximately $400.2 million and $403.5 million, respectively, were pledged to secure the above noted Federal Home Loan Bank of New York borrowings. No securities were pledged at December 31, 201 7 and 201 6 .  At December 31, 201 7 , the Bank’s total credit exposure cannot exceed 50% of its total assets, or $970,953,500 , based on the borrowing limitations outlined in the FHLB of New York’s member products guide. The total credit exposure limit of 50% of total assets is recalculated each quarter. 

Subordinated Debentures

Subordinated Debentures	12 Months Ended
	Dec. 31, 2017
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Subordinated Debentures	Note 10 – Subordinated Debentures (In Thousands):  The following table summarizes the mandatory redeemable trust preferred securities of the Company’s Statutory Trust I at December 31, 2017.      Issuance Date Securities Issued Liquidation Value Coupon Rate Maturity Callable by Issuer Beginning   6/17/2004 $4,124,000 $1,000 per Capital Security Floating 3-month LIBOR + 265 Basis Points 6/17/2034 6/17/2009   The Trust Preferred floating rate junior subordinated debenture interest rate adjusts quarterly. The rate paid as of December 31, 2017 and 2016, respectively, was 4.250% and 3.643% .  The trust preferred debenture became callable, at the Company’s option, on June 17, 2009, and quarterly thereafter.

Regulatory Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2017
Regulatory Matters [Abstract]
Regulatory Matters	Note 1 1 - Regulatory Matters  The Bank is subject to various regulatory capital requirements administered b y the federal banking agencies. Failure to meet the minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s cons olidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of the Bank’s assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk-weightings and other factors.  In July 2013, the FDIC and the other federal bank regulatory agencies issued a final rule that revised their leverage and risk-based capital requirements and the method for calculating risk-weighted assets to make them consistent with agreements that were reached by the Basel Committee on Banking Supervision and certain provisions of the Dodd-Frank Act. Among other things, the new rule established a new common equity Tier 1 minimum capital requirement (4.5% of risk-weighted assets), increased the minimum Tier 1 capital to risk-based assets requirement (from 4% to 6% of risk-weighted assets) and assigned a higher risk weight (150%) to exposures that are more than 90 days past due or are on nonaccrual status and to certain commercial real estate facilities that finance the acquisition, development or construction of real property.  The final rule also requires unrealized gains and losses on certain available-for-sale securities holdings and defined benefit plan obligations to be included for purposes of calculating regulatory capital requirements unless a one-time opt-in or opt-out is exercised. The Bank exercised the opt-out election. The rule limits a banking organization's capital distributions and certain discretionary bonus payments if the banking organization does not hold a "capital conservation buffer" consisting of 2.5% of common equity Tier 1 capital to risk-weighted assets in addition to the amount necessary to meet its minimum risk-based capital requirements.  The final rule became effective for the Bank and the Company on January 1, 2015. The capitalization buffer is being phased in which started at 0.625% in 2016 and increasing by 0.625% annually until it reaches 2.5% in 2019. The Bank and the Company currently comply with the minimum capital requirements set forth in the final rule. The Company’s capital adequacy guidelines are not materially different than the capital adequacy guidelines for the Bank.  Quantitative measures, established by regulation to ensure capital adequacy, require the Bank to maintain minimum amounts and ratios of Total and Tier 1 capital (as defined in the regulations), to risk-weight ed assets, (as defined), Tier 1 capital to average assets (as defined) and Common Equity Tier 1 to risk-weighted assets. The following table presents information as to the Bank’s capital levels.   For Capital Adequacy To be Well Capitalized under Prompt Corrective  Actual Purposes Action Provisions   Amount Ratio Amount Ratio Amount Ratio  (Dollars in Thousands)  As of December 31, 2017  Bank  Total capital (to risk-weighted assets) $199,637 13.24 % $120,605 8.00 % $150,757 10.00 %  Tier 1 capital (to risk-weighted assets) 182,262 12.09 90,454 6.00 120,605 8.00  Common Equity Tier 1 (to risk-weighted assets) 182,262 12.09 67,841 4.50 97,992 6.50  Tier 1 capital (to average assets) 182,262 9.50 76,712 4.00 95,890 5.00   Company  Total capital (to risk-weighted assets) $201,095 13.33 % $120,605 8.00 % N/A N/A  Tier 1 capital (to risk-weighted assets) 183,720 12.18 90,495 6.00 N/A N/A  Common Equity Tier 1 (to risk-weighted assets) 166,355 11.03 67,871 4.50 N/A N/A  Tier 1 capital (to average assets) 183,720 9.58 76,733 4.00 N/A N/A   As of December 31, 2016  Bank  Total capital (to risk-weighted assets) $154,923 11.34 % $109,330 8.00 % $136,663 10.00 %  Tier 1 capital (to risk-weighted assets) 137,839 10.09 81,998 6.00 109,330 8.00  Common Equity Tier 1 (to risk-weighted assets) 137,839 10.09 61,498 4.50 88,831 6.50  Tier 1 capital (to average assets) 137,839 8.10 68,074 4.00 85,092 5.00   Company  Total capital (to risk-weighted assets) $156,152 11.42 % $109,372 8.00 % N/A N/A  Tier 1 capital (to risk-weighted assets) 139,061 10.17 82,029 6.00 N/A N/A  Common Equity Tier 1 (to risk-weighted assets) 119,473 8.74 61,522 4.50 N/A N/A  Tier 1 capital (to average assets) 139,061 8.17 68,117 4.00 N/A N/A  As of December 31, 201 7 and 201 6 , the most recent notification from the Bank’s regulators categorized the Bank as “well capitalized” under the regulatory framework for prompt corrective action. There are no conditions or events occurring since that notification that management believes have changed the Bank’s category.

Benefits Plans

Benefits Plans	12 Months Ended
	Dec. 31, 2017
Benefits Plans [Abstract]
Benefit Plans	Note 12 - Benefits Plans  Pension Plan  The Company acquired , through the merger with Pamrapo Bancorp, Inc. a non-contributory defined benefit pension plan covering all eligible employees of Pamrapo Savings Bank. Effective January 1, 2010, the defined benefit pension plan (“Pension Plan”), was frozen by Pamrapo Savings Bank. All benefits for eligible participants accrued in the Pension Plan to the freeze date have been retained. The benefits are based on years of service and employee’s compensation. The Pension Plan is funded in conformity with funding requirements of applicable government regulations. Prior service costs for the Pension Plan generally are amortized over the estimated remaining service periods of employees.  The following tables set forth the Pension Plan's funded status at December 31, 201 7 and 201 6 and components of net periodic pension cost for the years ended December 31, 201 7 and 201 6 :       Change in Benefit Obligation: December 31,  2017 2016  (In Thousands)   Benefit obligation, beginning of year $ 7,488 $ 7,811  Interest cost 300 328  Actuarial loss (gain) 695 (52)  Benefits paid (481) (500)  Lump sum distributions (77) (99)  Benefit obligation, ending $ 7,925 $ 7,488     Change in Plan Assets:   Fair value of assets, beginning of year $ 7,646 $ 6,569  Actual return on plan assets 875 876  Employer contributions - 800  Benefits paid (481) (500)  Lump sum distributions (77) (99)   Fair value of assets, ending $ 7,963 $ 7,646    Reconciliation of Funded Status:   Accumulated benefit obligation $ 7,925 $ 7,488   Projected benefit obligation $ 7,925 $ 7,488   Fair value of assets 7,963 7,646   Funded (unfunded) status, included in other liabilities, net $ 38 $ 158    Valuation assumptions used to determine  benefit obligation at period end:   Discount rate 3.60% 4.14%   Salary increase rate N/A N/A       Note 12 - Benefits Plans (Continued)       Net Periodic Pension Expense: December 31,  2017 2016  (In Thousands)   Interest cost $ 300 $ 328  Expected return on assets (444) (541)  Amortization of net loss 118 146   Net Periodic Pension Cost (Credit) $ (26) $ (67)    Valuation assumptions used to determine net periodic benefit cost for the year:   Discount rate 4.14% 4.34%  Long term rate of return on plan assets 6.00% 8.00%  Salary increase rate N/A N/A   At December 31, 201 7 and December 31, 201 6 , unrecognized net loss of $(2,245,000) and $(2,100,000) , respectively, was included, net of deferred income tax, in accumulated other comprehensive loss in accordance with ASC 715-20 and ASC 715-30. None of the unrecognized net loss is expected to be recognized in net periodic pension expense for the year ended December 31, 201 8 .   Note 12 - Benefits Plan (Continued)  Plan Assets  Investment Policies and Strategies  The primary long-term objective for the Pension Plan is to maintain assets at a level that will sufficiently cover future beneficiary obligations. The Pension Plan will be structured to include a volatility reducing component (the fixed income commitment) and a growth component (the equity commitment).  To achieve the Bank’s long-term investment objectives, the trustee will invest the assets of the Pension Plan in a diversified combination of asset classes, investment strategies, and pooled vehicles. The asset allocation guidelines in the table below reflect the Bank’s risk tolerance and long-term objectives for the Pension Plan. These parameters will be reviewed on a regular basis and subject to change following discussions between the Bank and the trustee.  Initially, the following asset allocation targets and ranges will guide the trustee in structuring the overall allocation in the Pension Plan’s investment portfolio. The Bank or the trustee may amend these allocations to reflect the most appropriate standards consistent with changing circumstances. Any such fundamental amendments in strategy will be discussed between the Bank and the trustee prior to implementation.  Based on the above considerations, the following asset allocation ranges will be implemented:     Asset Allocation Parameters by Asset Class  Minimum Target Maximum  Equity  Large-Cap U.S. 48%  Mid/Small-Cap U.S. 14%  Non-U.S. 0%  Total-Equity 40% 62% 60%   Fixed Income  Long/Short Duration 37%  Money Market/Certificates of Deposit 1%  Total-Fixed Income 40% 38% 60%   The parameters for each asset class provide the trustee with the latitude for managing the Pension Plan within a minimum and maximum range. The trustee will have full discretion to buy, sell, invest and reinvest in these asset segments based on these guidelines which includes allowing the underlying investments to fluctuate within the stated policy ranges. The Pension Plan will maintain a cash equivalents component (not to exceed 3% under normal circumstances) within the fixed income allocation for liquidity purposes.  The trustee will monitor the actual asset segment exposures of the Pension Plan on a regular basis and, periodically, may adjust the asset allocation within the ranges set forth above as it deems appropriate. Periodic reallocations of assets will be based on the trustee’s perception of the changing risk/return opportunities of the respective asset classes.   Determination of Long-Term Rate–of Return  The long-term rate-of-return-on assets assumption was set based on historical returns earned by equities and fixed income securities, adjusted to reflect expectations of future returns as applied to the Pension Plan’s target allocation of asset classes. Equities and fixed income securities were assumed to earn real rates of return in the ranges of 5 -9% and 2 -6% , respectively. The long-term inflation rate was estimated to be 3% . When these overall return expectations are applied to the Pension Plan’s target allocation, the result is an expected rate of return of 6% to 11% .   Note 12 - Benefits Plan (Continued)  The fair values of the Pension Plan assets at December 31, 201 7 , by asset category (see Note 1 6 for the definitions of levels), are as follows:     Asset Category Total (Level 1) (Level 2) (Level 3)   Mutual funds-Equity  Large-Cap Value (a) $ 2,194,188 $ 2,194,188 $ - $ -  Mid-Cap Value (b) 385,971 385,971 - -  Large Blend (e) 1,584,830 1,584,830 - -   Mutual Funds-Fixed Income  World Bond (c) 931,783 931,783 - -  Multi-Sector Bond (d) 979,788 979,788 - -  High Yield Bond (f) 1,007,258 1,007,258 - -   Stock  BCB Common Stock 751,463 751,463 - -   Cash Equivalents  Money Market $ 127,428 $ 127,428 $ - $ -   Total $ 7,962,709 $ 7,962,709 $ - $ -  The fair values of the Company’s pension plan assets at December 31, 201 6, by asset category (see Note 16 for the definitions of levels), are as follows:        Asset Category Total (Level 1) (Level 2) (Level 3)   Mutual funds-Equity  Large-Cap Value (a) $ 2,065,510 $ 2,065,510 $ - $ -  Mid-Cap Value (b) 371,203 371,203 - -  Large Blend (e) 1,415,265 1,415,265 - -   Mutual Funds-Fixed Income  World Bond (c) 985,817 985,817 - -  Multi-Sector Bond (d) 1,008,504 1,008,504 - -  High Yield Bond (f) 1,027,330 1,027,330 - -   Stock  BCB Common Stock 673,725 673,725 - -   Cash Equivalents  Money Market $ 98,372 $ 98,372 $ - $ -   Total $ 7,645,726 $ 7,645,726 $ - $ -              Note 12 - Benefits Plan (Continued)  a) Large-value portfolios invest primarily in big U.S. companies that are less expensive or growing more slowly than other large-cap stocks. Stocks in the top 70% of the capitalization of the U.S. equity market are defined as large cap. Value is defined based on low valuations (low price ratios and high dividend yields) and slow growth (low growth rates for earnings, sales, book value, and cash flow. b) Some mid-cap value portfolios focus on medium-size companies while others land here because they own a mix of small-, mid-, and large-cap stocks. All look for U.S. stocks that are less expensive or growing more slowly than the market. The U.S. mid-cap range for market capitalization typically falls between $1 billion and $8 billion and represents 20% of the total capitalization of the U.S. equity market. Value is defined based on low valuations (low price ratios and high dividend yields) and slow growth (low growth rates for earnings, sales, book value, and cash flow). c) World-bond portfolios invest 40% or more of their assets in foreign bonds. Some world-bond portfolios follow a conservative approach, favoring high-quality bonds from developed markets. Others are more adventurous and own some lower-quality bonds from developed or emerging markets. Some portfolios invest exclusively outside the U.S., while others regularly invest in both U.S. and non- U.S. bonds. d) Multi Sector portfolios seek income by diversifying their assets among several fixed-income sectors, usually U.S. government obligations, foreign bonds, and high-yield domestic debt securities. e) This fund invests in 500 of the largest U.S. companies, which span many different industries and account for about three-fourths of the U.S. Stock Markets value. f) High Yield Bond funds invest at least 65% of assets in bonds rated below BBB. This fund seeks to provide shareholders with a high level of current income with capital growth as a secondary objective.  The Company expects to contribute, based upon actuarial estimates, approximately $0 to the P ension P lan in 2018.   Benefit payments are expected to be paid for the years ended December 31 as follows (In thousands):       2018 $ 536  2019 536  2020 524  2021 507  2022 504  2023-2027 2,418    Note 12 - Benefits Plan (Continued)  Supplemental Executive Retirement Plan  The Company acquired through the merger with Pamrapo Bancorp, Inc. a supplemental executive retirement plan (“SERP”) in which certain former employees of Pamrapo Savings Bank are covered. A SERP is an unfunded non-qual ified deferred retirement plan. Participants who retire at the age of 65 (the “Normal Retirement Age”), are entitled to an annual retirement benefit equal to 75% of compensation reduced by their retirement plan annual benefits. Participants retiring before the Normal Retirement Age receive the same benefits reduced by a percentage based on years of service to the Company and the number of years prior to the Normal Retirement Age that participants retire.  The following tables set forth the SERP's funded status and components of net periodic SERP cost:      December 31,  2017 2016  (In Thousands)   Benefit obligation, beginning of year $ 283 $ 332  Interest Cost 10 13  Actuarial loss (gain) 2 -  Benefits paid (62) (62)  Benefit obligation, ending $ 233 $ 283    Change in Plan Assets:   Fair value of assets, beginning of year $ - $ -  Employer contributions 62 62  Benefits paid (62) (62)   Fair value of assets, ending $ - $ -    Reconciliation of Funded Status:   Accumulated benefit obligation $ 233 $ 283   Projected benefit obligation $ 233 $ 283   Fair value of assets - -   Funded status, included in other liabilities $ 233 $ 283    Valuation assumptions used to determine  benefit obligation at period end:   Discount rate 3.64% 4.14%   Salary increase rate N/A N/A     Note 12 - Benefits Plan (Continued)     December 31,  Net Periodic SERP Expense: 2017 2016  (In Thousands)    Interest Cost $ 10 $ 13   Net Periodic SERP Cost $ 10 $ 13    Valuation assumptions used to determine net periodic benefit cost for the year:   Discount rate 4.14 % 4.34 %   Salary increase rate N/A N/A   At December 31, 201 7 and December 31, 201 6 , unrecognized net loss of $ 36,000 and $ 36,000 , respectively, was included, net of deferred income tax, in accumulated other comprehensive income in accordance with ASC 715-20 and ASC 715-30. None of the unrecognized net loss is expected to be recognized in net periodic SERP cost for the year ended December 31, 201 8 .  The Company expects to contribute, based upon actuarial estimates, approximately $ 62,000 to the SERP plan in 201 8 .  Benefit payments are expected to be paid for the years ended December 31 as follows (In thousands):     2018 $ 62  2019 62  2020 32  2021 32  2022 32  2023-2027 13    Note 12 - Benefits Plan (Continued)  Stock Options  The Company, under the plan approved by its shareholders on April 28, 2011 (“2011 Stock Plan”), authorized the issuance of up to 900,000 shares of common stock of the Company pursuant to grants of stock options. Employees and directors of the Company and the Bank are eligible to participate in the 2011 Stock Plan. All stock options will be granted in the form of either "incentive" stock options or "non-qualified" stock options. Incentive stock options have certain tax advantages that must comply with the requirements of Section 422 of the Internal Revenue Code. Only employees are permitted to receive incentive stock options. On September 13 th , 2017, a grant of 275,000 options and on September 16 th , 2016, a grant of 110,000 options was declared for certain members of the Board of Directors of the Bank and the Company which vest at a rate of 10% per year, over ten years commencing on the first anniversary of the grant date. The exercise price was recorded as of the close of business on September 13 th , 2017 and September 16 th , 2016, respectively and a Form 4 was filed for each Director who received a grant with the Securities and Exchange Commission consistent with their filing requirements. There were 75,000 and 50,000 stock options granted to employees in the fourth quarters of 2017 and 2016, respectively, which vest at a rate of 20% and 33% per year, respectively.  A summary of stock option activity, follows:      Number of Options Range of Exercise Price Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (000's)    Outstanding at January 1, 2016 417,000 $ 8.93 -15.65 $ 10.75 8.22 years $ 219   Options forfeited - - -  Options exercised - - -  Options granted 160,000 10.92 10.92  Options expired (2,000) 15.11 15.11   Outstanding at December 31, 2016 575,000 $ 8.93 -13.32 $ 10.78 7.94 years $ 1,198   Options forfeited (35,000) 8.93 -13.32 10.75  Options exercised (700) 10.55 10.55  Options granted 350,000 12.40 12.40  Options expired - - -   Outstanding at December 31, 2017 889,300 $ 8.93 -13.32 $ 11.42 8.06 years $ 1,855   Exercisable at December 31, 2017 166,067   It is Company policy to issue new shares upon share option exercise. Expected future compensation expense relating to the 723,233 shares underlying unexercised options outstanding as of December 31, 2017, is $1.6 million over a weighted average period of 7.36 years.   Note 12 - Benefits Plan (Continued)     The key valuation assumptions and fair value of stock options granted during the twelve months ended December 31, 2017 were:  Directors Employees  Expected life 7.70 years 7.70 years  Risk-free interest rate 2.04 % 2.04 %  Volatility 27.69 % 27.69 %  Dividend yield 4.52 % 4.52 %  Fair value $2.06 $2.06     +   The key valuation assumptions and fair value of stock options granted during the twelve months ended December 31, 2016 were:   Expected life 7.85 years 7.85 years  Risk-free interest rate 1.56 % 1.56 %  Volatility 35.06 % 35.06 %  Dividend yield 5.13 % 5.13 %  Fair value $2.13 $2.13  

Dividend Restrictions

Dividend Restrictions	12 Months Ended
	Dec. 31, 2017
Dividend Restrictions [Abstract]
Dividend Restrictions	Note 13 - Dividend Restrictions  Payment of cash dividends on common stock is conditional on earnings, financial condition, cash needs, capital considerations, the discretion of the Board of Directors of the Company , and complianc e with regulatory requirements. State and federal law and regulations impose substantial limitations on the Bank’s ability t o pay dividends to the Company. Under New Jersey law, the Company is permitted to declare dividends on its common stock only if, after payment of the dividend, the capital stock of the Bank will be unimpaired and either the Bank will have a surplus of not less than 50% of its capital stock or the payment of the dividend will not reduce the Bank’s surplus. During 2017, 2016 and 2015, the Bank paid the Company total dividends of $7,951,000 , $6,627,000 , and $4,957,000 , respectively. The Company’s ability to declare dividends is dependent upon the amount of dividends paid to the Company by the Bank . 

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Income Taxes	Note 14 - Income Taxes  The co mponents of income tax expense are summarized as follows:      Years Ended December 31,  2017 2016 2015  (In Thousands)   Current income tax expense:  Federal $ 5,020 $ 2,632 $ 3,730  State 1,279 1,139 1,082   6,299 3,771 4,812   Deferred income tax expense:  Federal 1,277 1,439 2  Federal - remeasurement of deferred tax assets and liabilities (a) 2,183 - -  State 472 48 -   3,932 1,487 2   Total Income Tax Expense $ 10,231 $ 5,258 $ 4,814   (a) On December 22, 2017 the Tax Cut and Jobs Act was signed into law. ASC 740 (Income Taxes) requires the recognition of the effect of changes in tax laws or rates in the period in which the legislation is enacted. The revaluation of deferred tax asse ts and liabilities to the new 21% federal tax rate are materially complete and are reflected in income tax expense for fiscal year 2017. Note 14 – Income Taxes  The tax effects of existing temporary differences that give rise to significant portions of the deferred income tax assets and deferred income tax liabilities are as follows:     December 31,  2017 2016  Deferred income tax assets: (In Thousands)  Allowance for loan losses $ 4,884 $ 7,030  Other real estate owned expenses 78 114  Non-accrual interest 199 342  Benefit Plans - 51  Benefit Plan-accumulated other comprehensive loss 641 873  Valuation adjustment on loans receivable acquired 627 1,045  Unrealized loss on securities available for sale 587 1,791  Net operating loss carry forwards - 23  Other 323 794   7,339 12,063   Deferred income tax liabilities:  Valuation adjustment on premises and equipment acquired 637 926  Depreciation 243 357  SBA Servicing Asset 750 827  Benefit Plans 565 -   2,195 2,110   Net Deferred Tax Asset $ 5,144 $ 9,953   In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. In making this assessment, management has considered the profitability of current core operations, future market growth, forecasted earnings, future taxable income, and ongoing, feasible and permissible tax planning strategies. If the Company was to determine that it would not be able to realize a portion of its net deferred tax asset in the future for which there is currently no valuation allowance, an adjustment to the net deferred tax asset would be charged to earnings in the period such determination was made. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which temporary differences are deductible and carry forwards are available.  On December 22, 2017 the Tax Cut and Jobs Act was signed into law. ASC 740 (Income Taxes) requires the recognition of the effect of changes in tax laws or rates in the period in which the legislation is enacted. The changes in the deferred tax assets and liabilities remeasured at the new 21% federal tax rate are reflected in income tax expense for fiscal year 2017.  At December 31, 201 7 and 2016 , gross deferred tax assets related to net operating loss carry forwards totaled $0 and $23,000 , respectively , consisting of $23,000 federal assets acquired in a 2011 acquisition.  In conjunction with the Company’s acquisition of Allegiance in 2011, the Company acquired a federal net operating loss carry forward of $1.2 million. This carry forward is available for use through 2030 ; however, in accordance with Internal Revenue Code Section 382, usage of the carry forward is limited to $235,000 annually on a cumulative basis (portions of the $235,000 not used in a particular year may be added to subsequent usage). At December 31, 201 7 and 201 6 , the Company had approximately $0 and $23,000 remaining of this federal net operating loss carry forward available to offset future taxable income for federal tax reporting purposes .  Note 14 - Income Taxes (Continued)  The following table presents a reconciliation between the reported income tax expense and the income tax expense which would be computed by applying the normal federal income tax rate of between 34 and 35% in 201 7 , 201 6 , and 201 5 to i ncome before income tax expense, with an adjustment for the tax effect of the new 21% federal tax rate on deferred assets and liabilities as of December 31, 2017 (a):       Years Ended December 31,  2017 2016 2015  (In Thousands)   Federal income tax expense at statutory rate $ 6,966 $ 4,532 $ 4,101  Increases in income taxes resulting from:  State income tax , net of federal income tax effect 1,148 781 707  Remeasurement of deferred tax assets and liabilities (a) 2,183 - -  Other items, net (66) (55) 6   Effective Income Tax Expense $ 10,231 $ 5,258 $ 4,814   Effective Income Tax Rate 50.6 % 39.7 % 40.7 %  

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 15- Commitments and Contingencies  The Bank is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the fi nancing needs of its customers. These financial instruments primarily includ e commitments to extend credit. The Bank’s exposure to credit loss, in the event of nonperformance by the other party to the financial instrument for commitments to extend credit, is represented by the contractual amount of those instruments. The Bank uses the same credit policies in making commitments and conditional obligations as it does for on-balance-sheet instruments.  Outstanding loan related commitments were as follows:      December 31,  2017 2016  (In Thousands)   Loan origination $ 139,451 $ 61,958  Standby letters of credit 2,677 964  Construction loans in process 50,008 41,206  Unused lines of credit 69,987 60,615   $ 262,123 $ 164,743  Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, total commitment amounts do not necessarily represent future cash requirements. The Bank evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Bank upon extension of credit, is based on management’s credit evaluation of the counterparty. Collateral held varies but primarily includes residential real estate properties.  The Company is involved, from time to time, as plaintiff or defendant in various legal actions arising in the normal course of business. Other than as set forth below, as of December 31, 2017, we were not involved in any material legal proceedings the outcome of which, if determined in a manner adverse to the Company, would have a material adverse effect on the Company’s consolidated financial condition or results of operations. The Company, as the successor to Pamrapo Bancorp, Inc., and in its own corporate capacity, was a named defendant in a shareholder class action lawsuit, Kube v. Pamrapo Bancorp, Inc., et al ., filed in the Superior Court of New Jersey, Hudson County, Chancery Division, General Equity (the "Action”). On September 21, 2015, the court entered an Order and Final Judgment (“Judgment”), whereby the Stipulation of Settlement ("Stipulation") agreed to by the plaintiff class, the Company and the remaining defendants was approved. Pursuant to the Judgment, and i n consideration for the full settlement and release of all Released Claims (as that term is defined in the Stipulation) and the dismissal of the Action with prejudice as against the Company and the remaining defendants, the Company, on its own behalf and on behalf of the remaining defendants, would pay $1,950,000 to the Class. This settlement amount was paid in November 2015.  Pursuant to the Stipulation, the plaintiff class's counsel reserved the right to seek an award of counsel fees and litigation expenses (“Fees Motion”). The maximum amount which could have been awarded as a result of the Fees Motion was $1,000,000 . The plaintiff class’s counsel made a Fees Motion to the court seeking a final award of counsel fees and litigation expenses of approximately $1,000,000 . The Company and the remaining defendants vigorously opposed that motion.  By Order, dated July 5, 2017, the court awarded counsel fees and litigation expenses to the plaintiff’s class counsel in the amount of $1,000,000 . The Company satisfied the Order by July 31, 2017. The Company and the other defendants in the Action ("Plaintiffs") brought suit (the "Carrier Suit") against Progressive Insurance Company ("Progressive"), the Directors' and Officers' Liability insurance carrier for Pamrapo Bancorp, Inc., at the time of its merger with the Company on July 6, 2010, and Colonial American Insurance Company ("Colonial"), the Directors' and Officers' Liability insurance carrier for the Company at the time of the merger. The Carrier Suit sought, among other claims, indemnification, payment of and/or contribution toward the above settlement, payment of and/or contribution toward the award of attorney's fees to the plaintiff class's counsel, and reimbursement of the attorney's fees and defense costs incurred by the Plaintiffs in defending the Action and pursuing the Carrier Suit.  Progressive made a motion to dismiss the Carrier Suit in 2014. The Plaintiffs opposed that motion. That motion was administratively terminated by Order of the court, dated December 3, 2014. By Order of the court, dated December 3, 2014, the Plaintiffs' motion to file an Amended Complaint was granted.  On or about January 6, 2015, Progressive again made a motion to dismiss the Carrier Suit. The Plaintiffs opposed that motion. That motion was denied by oral decision on October 22, 2015, and by written Order, dated January 20, 2016. A Mediation session ("Mediation") was held on March 11, 2015, among the parties. Following the Mediation, the Plaintiffs and Colonial agreed to settle the Plaintiffs’ claims against Colonial for $1,750,000 . A Settlement Agreement and Release , dated June 30, 2015, was entered into by the Plaintiffs and Colonial. The Plaintiffs received the settlement amount of $1,750,000 from Colonial on July 9, 2015.  The Plaintiffs and Progressive did not settle their respective claims at the Mediation. The Carrier Suit continued with respect to these parties.  By Order of the court, dated August 10, 2016, the parties were granted permission to serve and file motions for summary judgment by November 9, 2016. Prior to consideration of these motions, a Settlement Conference was held before the court on November 16, 2016. The Plaintiffs and Progressive did not settle their respective claims at that Settlement Conference.  The Plaintiffs filed a motion for partial summary judgment. Progressive filed a motion for summary judgment. These motions were returnable before the court on December 5, 2016.  By Order, dated September 18, 2017, the court granted the Plaintiffs’ motion for partial summary judgment, and denied Progressive’s motion for summary judgment.  A Status Conference was held before the court on October 26, 2017. As a result thereof, a Settlement Conference was scheduled for December 1, 2017, before the court. A Settlement Conference in the Carrier Suit was conducted on December 1, 2017, before the court. At the Settlement Conference, the terms of a preliminary settlement were discussed by the Plaintiffs and Progressive. A proposed Settlement Agreement and Release (“Release”) was circulated among the parties for review.  The last party to the Carrier Suit executed the Release on February 20, 2018. Pursuant to the Release, i n consideration for the full settlement and release of all claims (as that term is defined in the Release) and the dismissal of the Carrier Suit with prejudice, Progressive agreed to pay the Company $2,200,000 by, on, or about March 10, 2018.

Fair Value Measurements and Fai

Fair Value Measurements and Fair Values of Financial Instruments	12 Months Ended
	Dec. 31, 2017
Fair Values of Financial Instruments [Abstract]
Fair Values of Financial Instruments	Note 16 - Fair Value Measurements and Fair Values of Financial Instruments  Management uses its best judgment in estimating the fair value of the Company’s financial instruments; however, there are inherent weakness es in any estimation technique. Therefore, for substantially all financial instruments, the fair value estimates herein are not necessarily indicative of the amounts the Company could have realized in a sales tran saction on the dates indicated. The estimated fair value amounts have been measured as of their respective year-ends and have not been re-evaluated or updated for purposes of these consolidated financial statements subseq uent to those respective dates. As such, the estimated fair values of these financial instruments subsequent to the respective reporting dates may be different than the amounts reported at each year-end.  ASC Topic 820, Fair Value Measurements and Disclosures , establishes a fair value hierarchy that prioritizes the inputs to valuation methods used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are as follows:  Level 1 : Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.  Level 2 : Quoted prices in markets that are not active, or inputs that are observable either directly or indirectly, for substantially the full term of the asset or liability.  Level 3 : Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (i.e., supported with little or no market activity).  An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. For assets and liabilities measured at fair value on a recurring basis, the fair value measurements , by level , within the fair value hierarchy are as follows:      (Level 1) (Level 2)  Quoted Prices in Significant (Level 3)  Active Markets Other Significant  for Identical Observable Unobservable  Description Total Assets Inputs Inputs  As of December 31, 2017:  Securities Available for Sale  Residential mortgage backed securities $ 111,794 $ - $ 111,794 $ -  Municipal obligations 2,502 - 2,502 -  Preferred stock 8,293 - 8,293 -  Total Securities Available for Sale $ 122,589 $ - $ 122,589 $ -   As of December 31, 2016:  Securities Available for Sale  Residential mortgage backed securities $ 82,472 $ - $ 82,472 $ -  Municipal obligations 6,961 - 6,961 -  Preferred stock 5,332 - 5,332 -  Total Securities Available for Sale $ 94,765 $ - $ 94,765 $ -          For assets and liabilities measured at fair value on a nonrecurring basis, the fair value measurements by level within the fair value hierarchy are as follows:       (Level 1) (Level 2)  Quoted Prices in Significant (Level 3)  Active Markets Other Significant  for Identical Observable Unobservable  Description Total Assets Inputs Inputs  As of December 31, 2017:  Impaired loans $ 10,369 $ - $ - $ 10,369  Other real estate owned $ 532 $ - $ - $ 532   As of December 31, 2016:  Impaired loans $ 10,519 $ - $ - $ 10,519  Other real estate owned $ 3,525 $ - $ - $ 3,525   Note 16 - Fair Value Measurements and Fair Values of Financial Instruments (Continued)  The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company has utilized adjusted Level 3 inputs to determine fair value, (Dollars in thousands):      Quantitative Information about Level 3 Fair Value Measurements  Fair Value Valuation Unobservable Range  Estimate Techniques Input  December 31, 2017:  Impaired Loans $ 10,369 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   Other Real Estate Owned $ 532 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%       Quantitative Information about Level 3 Fair Value Measurements  Fair Value Valuation Unobservable Range  Estimate Techniques Input  December 31, 2016:  Impaired Loans $ 10,519 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   Other Real Estate Owned $ 3,525 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and e stimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.   Note 16 - Fair Value Measurements and Fair Values of Financial Instruments (Continued)  The following information should not be interpreted as an estimate of the fair value of the entire Company since a fair value calculation is only provided for a limited portion of the Company’s assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Company’s disclosures and those of other companies may not be meaningful. The following methods and assumptions were used to estimate the fair values of the Company’s financial instruments at December 31, 201 7 and 201 6 :  Cash and Cash Equivalents (Carried at Cost)  The carrying amounts reported in the consolidated statements of financial condition for cash and interest-earning deposits approximate those assets’ fair values.  Securities Available for Sale  The fair value of securities available for sale (carried at fair value) is determined by obtaining quoted market prices on nationally recognized securities exchanges (Level 1), or matrix pricing (Level 2), which is a mathematical technique used widely in the industry to value debt securities without relying exclusively on quoted market prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted prices.  Loans Hel d for Sale (Carried at Cost)  The fair value of loans held for sale is determined, when possible, using quoted secondary-market prices. If no such quoted prices exist, the fair value of a loan is determined using quoted prices for a similar loan or loans, adjusted for specific attributes of that loan. Loans held for sale are carried at their cost.  Loans Receivable (Carried at Cost)  The fair values of loans, except for certain impaired loans, are estimated using discounted cash flow analyses, using market rates at the date of the Statement of Financial Condition that reflect the credit and interest r ate-risk inherent in the loans. Projected future cash flows are calculated based upon contractual maturity or call dates, projected repayments and prepayments of principal . Generally, for variable rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values.  Impaired Loans (Generally Carried at Fair Value)  Impaired loans are those for which the Company has measured and recorded an impairment generally based on the fair value of the loan’s collateral. Fair value is generally determined based upon independent third-party appraisals of the properties, or discounted cash flows based upon the expected proceeds. These assets are included as Level 3 fair values, based upon the lowest level of input that is significant to the fair value measurements. The fair value at December 31, 201 7 and 201 6 consists of the loan balances of $12,402,000 and $14,050,000 net of a valuation allowance of $2,033,000 and $3,530,000 , respectively.  FHLB of New York Stock (Carried at Cost)  The carrying amount of restricted investment in bank stock approximates fair value, and considers the limited marketability of such securities.  Accrued Interest Receivable and Payable (Carried at Cost)  The carrying amount of accrued interest receivable and accrued interest payable approximates its fair value.  Deposits (Carried at Cost)  The fair values disclosed for demand deposits (e.g., interest and non-interest checking, passbook savings and money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered in the market on certificates to a schedule of aggregated expected monthly maturities on time deposits.  Debt Including Subordinated Debentures (Carried at Cost)  Fair values of debt are estimated using discounted cash flow analysis, based on quoted prices for new long-term debt with similar credit risk characteristics , terms and remaining maturity. These prices obtained from this active market represent a market value that is deemed to represent the transfer price if the liability were assumed by a third party.  Off-Balance Sheet Financial Instruments (Disclosed at Cost)  Fair values for the Bank’s off-balance sheet financial instruments (lending commitments and unused lines of credit) are based on fees currently charged in the market to enter into similar agreements, taking into account, the remaining terms of the agreements and the counterparties’ credit standing. The fair value of these commitments was deemed immaterial and is not presented in the accompanying table.   Note 16 - Fair Value Measurements and Fair Values of Financial Instruments (Continued)  The carrying values and estimated fair values of financial instruments were as follows at December 31, 2017 and 2016:     As of December 31, 2017   Quoted Prices in Active Significant Significant  Carrying Markets for Identical Assets Other Observable Inputs Unobservable Inputs  Value Fair Value (Level 1) (Level 2) (Level 3)   (In Thousands)  Financial assets:  Cash and cash equivalents $ 124,235 $ 124,235 $ 124,235 $ - $ -  Interest-earning time deposits 980 980 980 - -  Securities available for sale 122,589 122,589 - 122,589 -  Loans held for sale 1,295 1,295 - 1,295 -  Loans receivable, net 1,643,677 1,643,626 - - 1,643,626  FHLB of New York stock, at cost 10,211 10,211 - 10,211 -  Accrued interest receivable 6,153 6,153 - 6,153 -   Financial liabilities:  Deposits 1,569,370 1,578,382 903,155 673,227 -  Debt 185,000 182,947 - 182,947 -  Subordinated debentures 4,124 4,078 - 4,078 -  Accrued interest payable 791 791 - 791 -       As of December 31, 2016   Quoted Prices in Active Significant Significant  Carrying Markets for Identical Assets Other Observable Inputs Unobservable Inputs  Value Fair Value (Level 1) (Level 2) (Level 3)   (In Thousands)  Financial assets:  Cash and cash equivalents $ 65,038 $ 65,038 $ 65,038 $ - $ -  Interest-earning time deposits 980 980 980 - -  Securities available for sale 94,765 94,765 - 94,765 -  Loans held for sale 4,153 4,273 - 4,273 -  Loans receivable, net 1,485,159 1,515,088 - - 1,515,088  FHLB of New York stock, at cost 9,306 9,306 - 9,306 -  Accrued interest receivable 5,573 5,573 - 5,573 -   Financial liabilities:  Deposits 1,392,205 1,384,578 834,665 549,913 -  Debt 175,000 176,109 - 176,109 -  Subordinated debentures 4,124 4,150 - 4,150 -  Accrued interest payable 825 825 - 825 - 

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Loss [Abstract]
Accumulated Other Comprehensive Loss	Note 17 - Accumulated Other Comprehensive Loss  The components of accumulated other comprehensive loss included in stockholders' equity are as follows:      At December 31,  2017 2016  (In Thousands)   Net unrealized loss on securities available for sale $ (2,089) $ (4,383)  Tax effect 587 1,791  Net of tax amount (1,502) (2,592)   Benefit plan adjustments (2,281) (2,137)  Tax effect 641 873  Net of tax amount (1,640) (1,264)   Accumulated other comprehensive loss $ (3,142) $ (3,856)   

Parent Only Condensed Financial

Parent Only Condensed Financial Information	12 Months Ended
	Dec. 31, 2017
Parent Only Condensed Financial Information [Abstract]
Parent Only Condensed Financial Information	Note 18- Parent Only Condensed Financial Information     STATEMENTS OF FINANCIAL CONDITION  Years Ended December 31,  2017 2016  (In Thousands)   Assets   Cash and due from banks $ 852 $ 865  Investment in subsidiaries 179,120 133,984  Restricted common stock 124 124  Other assets 683 517   Total assets 180,779 135,490    Liabilities and Stockholders' Equity  Liabilities  Subordinated debentures $ 4,124 $ 4,124  Other l iabilities 201 285   Total liabilities 4,325 4,409   Stockholder's Equity 176,454 131,081   Total Liabilities and Stockholders' Equity $ 180,779 $ 135,490   Note 18- Parent Only Condensed Financial Information (Continued)     STATEMENTS OF OPERATIONS  Years Ended December 31,  2017 2016 2015  (In Thousands)   Dividends from Bank $ 7,951 $ 6,627 $ 4,957  Total Income 7,951 6,627 4,957    Interest expense, borrowed money 158 137 119  Other 212 176 190  Total Expense 370 313 309   Income before Income Tax Expense and Equity in Undistributed Earnings of Subsidiaries 7,581 6,314 4,648  Income tax benefit (126) (107) (106)   Income before Equity in Undistributed Earnings of Subsidiaries 7,707 6,421 4,754   Equity in undistributed earnings of subsidiaries 2,275 1,582 2,276   Net Income $ 9,982 $ 8,003 $ 7,030  Note 18 - Parent Only Condensed Financial Information (Continued)     STATEMENTS OF CASH FLOWS  Years Ended December 31,  2017 2016 2015  (In Thousands)   Cash Flows from Operating Activities  Net Income $ 9,982 $ 8,003 $ 7,030  Adjustments to reconcile net income to net cash provided by operating activities:  Equity in undistributed (earnings) of subsidiaries (2,275) (1,582) (2,276)  Decrease (increase) in other assets (166) 1,087 153  (Decrease) increase in other liabilities (84) (35) 73   Net Cash Provided By Operating Activities 7,457 7,473 4,980    Cash Flows from Investing Activities  Additional investment in subsidiary (41,389) 1,710 (29,617)   Net Cash Used In Investing Activities $ (41,389) $ 1,710 $ (29,617)   Cash Flows from Financing Activities  Proceeds from issuance of preferred stock 9,496 - 3,848  Redemption of preferred stock (11,720) (1,710) -  Proceeds from issuance of common stock 43,314 336 25,978  Cash dividends paid (7,158) (6,952) (5,378)  Purchase of treasury stock (13) (7) -   Net Cash Provided by (Used in) Financing Activities 33,919 (8,333) 24,448   Net Increase (decrease) in Cash and Cash Equivalents (13) 850 (189)   Cash and Cash Equivalents - Beginning $ 865 $ 15 $ 204   Cash and Cash Equivalents - Ending $ 852 $ 865 $ 15  

Quarterly Financial Data

Quarterly Financial Data	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Data [Abstract]
Quarterly Financial Data	Note 19 - Quarterly Financial Data (Unaudited)       Year Ended December 2017  First Quarter Second Quarter Third Quarter Fourth Quarter   Interest income $ 18,455 $ 19,069 $ 19,406 $ 20,641  Interest expense 3,850 4,006 3,832 3,999  Net Interest Income 14,605 15,063 15,574 16,642  Provision for loan losses 498 776 511 325  Net Interest Income, after Provision for loan losses 14,107 14,287 15,063 16,317  Non-interest income 2,313 2,022 1,633 1,515  Non-interest expense 11,562 12,148 11,299 12,034  Income before Income Taxes 4,858 4,161 5,397 5,798  Income taxes 1,945 1,648 2,180 4,458  Net Income $ 2,913 $ 2,513 $ 3,217 $ 1,340  Preferred stock dividends 118 165 166 165  Net income available to common stockholders: $ 2,795 $ 2,348 $ 3,051 1,175  Net income per common share:  Basic $ 0.25 $ 0.21 $ 0.25 $ 0.05  Diluted $ 0.25 $ 0.21 $ 0.25 $ 0.04  Dividends per common share $ 0.14 $ 0.14 $ 0.14 $ 0.14              Year Ended December 2016  First Quarter Second Quarter Third Quarter Fourth Quarter   Interest income $ 17,831 $ 17,681 $ 17,731 $ 18,112  Interest expense 4,133 4,318 4,134 3,710  Net Interest Income 13,698 13,363 13,597 14,402  Provision for loan losses 189 37 (301) 102  Net Interest Income, after Provision for loan losses 13,509 13,326 13,898 14,300  Non-interest income 1,654 1,506 1,530 1,433  Non-interest expense 11,737 12,166 12,343 11,649  Income before Income Taxes 3,426 2,666 3,085 4,084  Income taxes 1,391 1,085 1,171 1,611  Net Income $ 2,035 $ 1,581 $ 1,914 $ 2,473  Preferred stock dividends 234 234 234 234  Net income available to common stockholders: $ 1,801 $ 1,347 $ 1,680 $ 2,239  Net income per common share:  Basic $ 0.16 $ 0.12 $ 0.15 $ 0.20  Diluted $ 0.16 $ 0.12 $ 0.15 $ 0.20  Dividends per common share $ 0.14 $ 0.14 $ 0.14 $ 0.14   

Definitive Merger Agreement

Definitive Merger Agreement	12 Months Ended
	Dec. 31, 2017
Definitive Merger Agreement [Abstract]
Definitive Merger Agreement	Note 20 – Definitive Merger Agreement  On June 7, 2017, the Company entered into an Agreement and Plan of Reorganization (the "Agreement") with IA Bancorp, Inc. ("IAB"), providing for, among other things, the merger of IAB with and into the Company (the "Merger"), with the Company as the surviving entity. The Agreement also provides for the merger of Indus-American Bank, a New Jersey chartered bank and wholly owned subsidiary of IAB, with and into the Bank, with the Bank as the surviving entity. The Agreement has been unanimously approved by the boards of directors of each of the Company and IAB.  Subject to the terms and conditions of the Agreement, at the effective time of the Merger (the "Effective Time"), IAB shareholders will have the right to receive, for each share of IAB common stock, either (i) 0.189 of a share of the Company’s common stock, or (ii) $3.05 in cash, at the election of such holder, subject to adjustment if IAB's tangible common equity falls below a certain level. All such elections are subject to adjustment on a pro rata basis, so that approximately 20% of the aggregate consideration paid to IAB shareholders will be cash and approximately 80% will be the Company’s common stock. In addition, the Company is issuing two series of preferred stock in exchange for two outstanding series of IAB preferred stock. The two series of the Company’s preferred stock will have terms substantially similar to the terms of the two series of IAB preferred stock.  At the Effective Time, each option granted by IAB to purchase shares of IAB common stock under IAB's equity plan that is unexpired, unexercised and outstanding, whether vested or unvested, will be canceled and converted into the right to receive a cash payment equal to the difference, if positive, between $3.05 and the exercise price of the option.  The Agreement contains certain termination rights for both the Company and IAB and further provides that a termination fee of $800,000 will be payable by IAB to the Company upon termination of the Agreement under certain specified circumstances. Subject to regulatory and shareholder approval, the Company anticipates the Merger to close in the second quarter of 2018.  Direct costs related to the acquisition were expensed as incurred. During the twelve months ended December 31, 2017, the Company incurred $802,000 in merger related expenses for the pending acquisition.

Common Stock Offering

Common Stock Offering	12 Months Ended
	Dec. 31, 2017
Common Stock Offering [Abstract]
Common Stock Offering	Note 21 – Common Stock Offering  On September 12, 2017, the Company issued and sold in a public offering an aggregate 3,265,306 shares of our common stock at a public offering price of $12.25 per share. The Shares were registered under the Securities Act of 1933 , as amended, pursuant to the Company’s shelf registration statement on Form S-3 (Registration Statement No. 333-219617) which became effective on August 10, 2017. On September 19, 2017 the Company’s underwriters exercised, in part, their over-allotment option and purchased an additional 449,796 shares of common stock. The net proceeds totaled approximately $42.8 million, after deducting underwriting discounts and commissions and other offering expenses of $2.8 million payable by us.  Keefe, Bruyette & Woods, A Stifel Company, and D.A. Davidson & Co. served as joint book-running managers for the offering. Oppenheimer & Co. acted as co-manager for the offering. None of the underwriting discounts and commissions or other offering expenses were incurred or paid to our directors or officers or their associates or to persons owning 10% or more of our common stock or to any of our affiliates.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	Note 22- Subsequent Events  As defined in FASB ASC 855, "Subsequent Events", subsequent events are events or transactions that occur after the balance sheet date but before financial statements are issued or available to be issued. Financial statements are considered issued when they are widely distributed to stockholders and other financial statement users for general use and reliance in a form and format that complies with GAAP. On January 17, 2018 , the Company declared a cash dividend of $0.14 per share and was paid to stockholders on February 20, 2018 , with a record date of February 5, 2018 .  On February 20, 2018, the last party to the Progressive Insurance Company Suit relating to the Kube v. Pamrapo Bancorp, Inc., et al .,executed the Settlement Agreement and Release (see Legal Proceedings). Pursuant to the Release, i n consideration for the full settlement and release of all claims and the dismissal of the Carrier Suit with prejudice, Progressive agreed to pay the Company $2.2 million by March 10, 2018.

Summary of Significant Accoun31

Summary of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Basis of Consolidated Financial Statement Presentation	Basis of Consolidated Financial Statement Presentation  The consolidated financial statements which include the accounts of the Company and its wholly-owned subsidiaries, the Bank, the New Jersey Investment Company, the New York Management Company and Pamrapo Service Corporation, have been prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). . All significant intercompany accounts and transactions have been eliminated in consolidation.  In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses for the periods then ended. Material estimates that are particularly susceptible to significant change relate to the determination of the allowance for loan losses, the identification of other-than-temporary impairment of securities, the determination as to whether deferred tax assets are realizable, and the determination of the fair value of financial instruments. Management believes that the allowance for loan losses is adequate; no securities in unrealized loss positions are other-than-temporarily impaired; net deferred tax assets have been reduced to an amount which is more-likely-than-not realizable, and the fair values of financial instruments are appropriate. While management uses available information to recognize losses on loans, future additions to the allowance for loan losses may be necessary based on changes in economic conditions in the market area. Management’s assessment regarding impairment of securities is based on future projections of cash flow which are subject to change. The realizability of deferred tax assets is partially based on projections of future taxable income, which is subject to change. The determination of fair value requires the use of various inputs which are subject to frequent and ongoing changes.  In addition, various regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for loan losses. Such agencies may require the Bank to recognize additions to the allowance based on their judgments about information available to them at the time of their examination.  In preparing these consolidated financial statements, the Company evaluated the events that occurred between December 31, 201 7 and the date these consolidated financial statements were issued.
Cash and Cash Equivalents	Cash and Cash Equivalents  Cash and cash equivalents include cash and amounts due from depository institutions and interest-bearing deposits in other banks having original maturities of three months or less.
Securities Available for Sale and Held to Maturity	Securities Available for Sale and Held to Maturity  Investments in debt securities that the Bank has the positive intent and ability to hold to maturity are classified as held to maturity securities and reported at amortized cost. Debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities and reported at fair value, with unrealized holding gains and losses included in earnings. Debt and equity securities not classified as trading securities or as held to maturity securities are classified as available for sale securities (“AFS”) and reported at fair value, with unrealized holding gains or losses, net of applicable deferred income taxes, reported in the accumulated other comprehensive income (loss) component of stockholders’ equity. Gains and losses on the sale of securities are recorded on the trade date and are determined using the specific identification method.  If the fair value of a security is less than its amortized cost, the security is deemed to be impaired. Management evaluates all securities with unrealized losses quarterly to determine if such impairments are “temporary” or “other-than-temporary” in accordance with Accounting Standards Codification (“ASC”) Topic 320, Investments – Debt and Equity Securities. Accordingly, temporary impairments are accounted for based upon the classification of the related securities as either available for sale or held to maturity. Temporary impairments on available for sale securities are recognized, on a tax-effected basis, through Other Comprehensive Income (“OCI”) with offsetting entries adjusting the carrying value of the securities and the balance of deferred taxes. Conversely, the carrying values of held to maturity securities are not adjusted for temporary impairments. Information concerning the amount and duration of temporary impairments on both available for sale and held to maturity securities is disclosed in the notes to the consolidated financial statements.  Other-than-temporary impairments are accounted for based upon several considerations. First, other-than-temporary impairments on debt securities that the Company has decided to sell as of the close of a fiscal period, or will, more likely than not, be required to sell prior to the full recovery of fair value to a level equal to or exceeding amortized cost, are recognized in operations. If neither of these conditions regarding the likelihood of the sale of debt securities are applicable, then the other-than-temporary impairment is bifurcated into credit-related and noncredit-related components. A credit-related impairment generally represents the amount by which the present value of the cash flows that are expected to be collected on a debt security fall below its amortized cost. The noncredit-related component represents the remaining portion of the impairment not otherwise designated as credit-related. Credit-related, other-than-temporary impairments are recognized in earnings and noncredit-related, other-than-temporary impairments are recognized, net of deferred taxes, in OCI. Equity securities on which there is an unrealized loss that is deemed other-than-temporary impaired are written down to fair value with the write-down recognized in earnings.  Premiums and discounts on all securities are amortized/accreted to matu rity using the interest method. Interest and dividend income on securities, which includes amortization of premiums and accretion of discounts, are recognized in the consolidated financial statements when earned.
Loans Held for Sale	Loans Held For Sale  Loans held for sale consist primarily of residential mortgage loans intended for sale and are carried at the lower of cost or estimated fair market value using the aggregate method. These loans are generally sold with servicing rights released. Gains and losses recognized on loan sales are based upon the cash proceeds received and the cost of the related loans sold.
Loans Receivable	  Loans Receivable  Loans receivable are stated at unpaid principal balances, less net deferred loan origination fees and the allowance for loan losses. Loan origination fees and certain direct loan origination costs are deferred and amortized/accreted, as an adjustment of yield, over the contractual lives of the related loans.  The accrual of interest on loans that are contractually delinquent more than ninety days is discontinued and the related loans are placed on nonaccrual status. All payments received while in nonaccrual status, are applied to principal until the loan has performed as expected for a minimum of six (6) months or until the loan is determined to qualify for return to normal accruing status. Loans may be returned to accrual status when all the principal and interest contractually due are brought current and future payments are reasonably assured. 
Acquired Loans	  Acquired Loans  Loans that were acquired in acquisitions are recorded at fair value with no carryover of the related allowance for credit losses. Determining the fair value of the loans involves estimating the amount and timing of principal and interest cash flows expected to be collected on the loans and discounting those cash flows at a market rate of interest.  The excess of cash flows expected at acquisition over the estimated fair value is referred to as the accretable discount and is recognized into interest income over the remaining life of the loan. The difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the nonaccretable discount. The nonaccretable discount represents estimated future credit losses expected to be incurred over the life of the loan. Subsequent decreases to the expected cash flows require an evaluation to determine the need for an allowance for credit losses. Subsequent improvements in expected cash flows result in the reversal of a corresponding amount of the nonaccretable discount which is then reclassified as accretable discount that is recognized into interest income over the remaining life of the loan using the interest method. The evaluation of the amount of future cash flows that is expected to be collected is performed in a similar manner as that used to determine our allowance for credit losses. Charge-offs of the principal amount on acquired loans would be first applied to the nonaccretable discount portion of the fair value adjustment.  Acquired loans that met the criteria for nonaccrual of interest prior to the acquisition may be considered performing upon acquisition, regardless of whether the customer is contractually delinquent, if the Bank can reasonably estimate the timing and amount of the expected cash flows on such loans and if the Bank expects to fully collect the new carrying va lue of the loans. As such, the Bank may no longer consider the loan to be nonaccrual or nonperforming and may accrue interest on these loans, including the impact of any accretable discount. The Bank has determined that it cannot reasonably estimate future cash flows on any such acquired loans that are past due 90 days or more and continue to treat them as non-accrual.
Allowance for Loan Losses	  Allowance for Loan Losses  The allowance for loan losses is increased through provisions charged to operations and by recoveries, if any, on previously charged-off loans and reduced by charge-offs on loans which are determined to be a loss in accordance with Bank policy.  The allowance for loan losses is maintained at a level considered adequate to absorb loan losses. Management, in determining the allowance for loan losses, considers the risks inherent in its loan portfolio and changes in the nature and volume of its loan activities, along with the general economic and real estate market conditions. The Bank utilizes a two tier approach: (1) identification of impaired loans and establishment of specific loss allowances on such loans; and (2) establishment of general valuation allowances on the remainder of its loan portfolio. The Bank maintains a loan review system which allows for a periodic review of its loan portfolio and the early identification of potentially impaired loans. Such a system takes into consideration, but is not limited to, delinquency status, size of loans, types and value of collateral, and financial condition of the borrowers. Specific loan loss allowances are established for impaired loans based on a review of such information and/or appraisals of the underlying collateral. General loan loss allowances are based upon a combination of factors including, but not limited to, actual loan loss experience, composition of the loan portfolio, current economic conditions, and management’s judgment.  Although management believes that adequate specific and general allowances for loan losses are established, actual losses are dependent upon future events and, as such, further additions to the level of specific and general loan loss allowances may be necessary.  Impaired loans and performing TDRs are analyzed on an individual basis for collateral impairment or are measured 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. A loan evaluated for impairment is deemed to be impaired when, based on current information and events, it is probable that the Bank will be unable to collect all amounts due according to the contractu al terms of the loan agreement. All loans identified as impaired are evaluated independently. The Bank does not aggregate such loans for evaluation purposes. Payments received on impaired loans are applied to principal.  When a loan is placed on nonaccrual status, amounts previously accrued and recognized as income are reversed. All payments are applied to principal under the cost recovery method. Interest income on nonaccrual loans is recognized on a cash basis.
Concentration of Risk	  Concentration of Risk  Financial instruments which potentially subject the Company and its subsidiaries to concentrations of credit risk consist of cash and cash equivalents, investment and mortgage-backed securities and loans.  Cash and cash equivalents include amounts placed with highly rated financial institutions. Securities include securities backed by the U.S. Government and other highly rated instruments. The Bank’s lending activity is primarily concentrated in loans collateralized by real estate in the State of New Jersey. As a result, credit risk related to loans is broadly dependent on the real estate market and general economic conditions in the State.
Premises and Equipment	  Premises and Equipment  Land is carried at cost. Buildings, building improvements, leasehold improvements and furniture, fixtures and equipment are carried at cost, less accumulated depreciation and amortization. Significant renovations and additions are charged to the property and equipment account. Maintenance and repairs are charged to expense in the period incurred. Depreciation charges are computed on the straight-line method over the following estimated useful lives of each type of asset.    Years  Buildings 40  Building improvements 7 - 40  Furniture, fixtures and equipment 3 - 5  Leasehold improvements Shorter of useful life or term of lease 
Federal Home Loan Bank (“FHLB”) of New York Stock	Federal Home Loan Bank (“FHLB”) of New York Stock  Federal law requires a member institution of the FHLB system to purchase and hold restricted stock of its district FHLB according to a predetermined formula. Such stock is carried at cost.  Management evaluates the FHLB of New York stock for impairment in accordance with guidance on accounting by entities that lend to or finance the activities of others. Management’s determination of whether this investment is impaired is based on their assessment of the ultimate recoverability of their cost rather than by recognizing temporary declines in value. The determination of whether a decline affects the ultimate recoverability of their cost is influenced by criteria such as (1) the significance of the decline in net assets of the FHLB of New York as compared to the capital stock amount for the FHLB of New York and the length of time this situation has persisted, (2) commitments by the FHLB of New York to make payments required by law or regulation and the level of such payments in relation to the operating performance of the FHLB of New York, and (3) the impact of legislative and regulatory changes on institutions and, accordingly, on the customer base of the FHLB of New York.  No impairment charges were recorded related to the FHLB of New York stock during 2017, 2016, or 2015.
Other Real Estate Owned	 Other Real Estate Owned  Assets acquired through, or in lieu of, loan foreclosures are held for sale and are initially recorded at fair value less cost to sell at the date of foreclosure, establishing a new cost basis. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Costs relating to development and improvement of property are capitalized, whereas costs relating to the holding of property are expensed. At December 31, 2017, the Bank owned four properties totaling $532,000 . At December 31, 2016, the Bank owned n ine properties totaling $3,525,000 .
Interest Rate Risk	 Interest Rate Risk  The Bank is principally engaged in the business of attracting deposits from the general public and using these deposits, together with other funds, to make loans secured by real estate and to purchase securities. The potential for interest-rate risk exists as a result of the difference in duration of the Bank’s interest-sensitive liabilities compared to its interest-sensitive assets. For this reason, management regularly monitors the maturity structure of the Bank’s interest-earning assets and interest-bearing liabilities in order to measure its level of interest-rate risk and to plan for future volatility.
Income Taxes	 Income Taxes  The Company and its subsidiaries file a consolidated federal income tax return. Income taxes are allocated to the Company and its subsidiaries based upon their respective income or loss included in the consolidated income tax return. Separate state income tax returns are filed by the Company and its subsidiaries.  Federal and state income tax expense has been provided on the basis of reported income. The amounts reflected on the tax returns differ from these provisions due principally to temporary differences in the reporting of certain items for financial reporting and income tax reporting purposes. The tax effect of these temporary differences is accounted for as deferred taxes applicable to future periods. Deferred income tax expense or (benefit) is determined by recognizing deferred tax assets and liabilities for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period that includes the enactment date. The realization of deferred tax assets is assessed and a valuation allowance provided, when necessary, for that portion of the asset which is not more likely than not to be realized.  On December 22, 2017 the Tax Cut and Jobs Act was signed into law. ASC 740 (Income Taxes) requires the recognition of the effect of changes in tax laws or rates in the period in which the legislation is enacted. The changes in the deferred tax assets and liabilities remeasured at the new 21% federal tax rate are reflected in income tax expense for fiscal year 2017.  Note 2 – Summary of Significant Accounting Policies (Continued)  The Company accounts for uncertainty in income taxes recognized in the consolidated financial statements in accordance with ASC Topic 740, Income Taxes , which prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return, and also provides guidance on derecognition, classification, interest and penalties, accounting in interim periods, disclosure and transition. A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that has a likelihood of being realized on examination of more than 50 percent. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded. Under the “more-likely-than-not” threshold guidelines, the Company believes no significant uncertain tax positions exist, either individually or in the aggregate, that would give rise to the non-recognition of an existing tax benefit. The Company recognizes interest and penalties on unrecognized tax benefits in income taxes expense in the Consolidated Statement of Operations. The Company did not recognize any interest and penalties for the years ended December 31, 201 7 , 201 6 and 201 5 . The tax years subject to examination by the Federal taxing authority are the years ended December 31, 2016 , 2015 , and 2014 . The tax years subject to examination by the State taxing authority are the years ended December 31, 2016 , 2015 , 2014 , and 2013 . The Company was notified by the IRS in January 2017 that its 2014 consolidated income tax return was selected for examination, which began in March, 2017. The IRS will issue its final report in the first quarter of 2018. The preliminary findings are nominal. 
Net Income per Common Share	Net Income per Common Share  Basic net income per common share is computed by dividing net income less dividends on preferred stock by the weighted average number of shares of common stock outstanding. The diluted net income per common share is computed by adjusting the weighted average number of shares of common stock outstanding to include the effects of outstanding stock options, if dilutive, using the treasury stock method. Dilution is not applicable in periods of net loss. For the years ended December 31, 2017, 2016 and 2015, the difference in the weighted average number of basic and diluted common shares was due solely to the effects of outstanding stock options. No adjustments to net income were necessary in calculating basic and diluted net income per share. For the years ended December 31, 2017, 2016 and 2015, the weighted average number of outstanding options considered to be anti-dilutive was 799,300 , 418,500 , and 260,500 , respectively. 
Stock-Based Compensation Plans	Stock-Based Compensation Plans  The Company, under plans approved by its stockholders in 2011, 2003 and 2002, has granted stock options to employees and outside directors. See note 1 2 for additional information as to option grants. Compensation expense recognized for all option grants is net of estimated forfeitures and is recognized over the awards’ respective requisite service periods. The fair values relating to all options granted are estimated using a Black-Scholes option pricing model. Expected volatilities are based on historical volatility of our stock and other factors, such as implied market volatility using the respective options ’ expected term. The Company used the mid-point of the original vesting period and original option life to estimate the options’ expected term, which represents the period of time that the options granted are expected to be outstanding. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. The Company recognizes compensation expense for the fair values of these option awards, which have graded vesting, on a straight-line basis over the requisite service period of these awards.
Benefit Plans	Benefit Plans  The Company acquired, through the merger with Pamrapo Bancorp, Inc., a non-contributory defined benefit pension plan covering all eligible employees of Pamrapo Savings Bank. Effective January 1, 2010, the defined benefit pension plan (the “Pension Plan”), was frozen by Pamrapo Savings Bank. All benefits for eligib le participants accrued in the Pension Plan to January 1, 2010 have been retained. The benefits are based on years of service and employee’s compensation. The Pension Plan is funded in conformity with funding requirements of applicable government regulations. Prior service costs for the Pension Plan generally are amortized over the estimated remaining service periods of employees. Additionally, with the merger with Pamrapo Bancorp, Inc., certain former employees of Pamrapo Savings Bank are covered under a Supplemental Executive Retirement Plan (“SERP”), an unfunded non-qualified deferred retirement plan. Participants who retire at the age of 65 (the “Normal Retirement Age”), are entitled to an annual retirement benefit equal to 75% of compensation reduced by their retirement plan annual benefits. Participants retiring before the Normal Retirement Age receive the same benefits reduced by a percentage based on years of service to the Company and the number of years prior to the Normal Retirement Age that participants retire. 
Comprehensive Income (Loss)	Comprehensive Income (Loss)  The Company records unrealized gains and losses, net of deferred income taxes, on securities available for sale in accumulated other comprehensive income (loss). Realized gains and losses, if any, are reclassified to non-interest income upon sale of the related securities or upon the recognition of an impairment loss. Accumulated other comprehensive income (loss) also includes benefit plan amounts recognized in accordance with ASC 715, Compensation-Retirement Benefits , which reflect, net of tax, the unrecognized gains (losses) on the benefit plans. 
Reclassification	Reclassification  Certain amounts as of and for the years ended December 31, 2016 and 2015 have been reclassified to conform to the current year’s presentation. These changes had no effect on the Company’s consolidated results of operations or financial position.
Recent Accounting Pronouncements	Recent Accounting Pronouncements  In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers (Topic 606), which will supersede the current revenue recognition requirements in Topic 605, Revenue Recognition. The ASU is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued ASU 2015-14 which deferred the effective date of ASU 2014-09 by one year. The scope of ASC 606 excludes net interest income or other revenues associated with financial assets and liabilities, including loans, leases, securities and derivatives, which would then exclude the majority of the Company's revenues. However, the recognition and measurement of certain non-interest income items such as gain on sale of other real estate owned and deposit-related fees, could be affected by ASC 606. The Company adopted the guidance effective January 1, 2018, using the modified retrospective method. Implementation of the guidance will not have a material impact on the Company's consolidated financial statements.  In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which will supersede the current lease requirements in Topic 840. The ASU requires lessees to recognize a right of use asset and related lease liability for all leases, with a limited exception for short-term leases. Leases will be classified as either finance or operating, with the classification affecting the pattern of expense recognition in the statement of income. Currently, leases are classified as either capital or operating, with only capital leases recognized on the balance sheet. The reporting of lease related expenses in the statements of operations and cash flows will be generally consistent with the current guidance. The new guidance will be effective for the Company in 2019. Once effective, the standard will be applied using a modified retrospective transition method to the beginning of the earliest period presented. The Company is currently assessing the impacts this new standard will have on its consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses. ASU 2016-13 requires entities to report “expected” credit losses on financial instruments and other commitments to extend credit rather than the current “incurred loss” model. These expected credit losses for financial assets held at the reporting date are to be based on historical experience, current conditions, and reasonable and supportable forecasts. This ASU will also require enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an entity’s portfolio. These disclosures include qualitative and quantitative requirements that provide additional information about the amounts recorded in the consolidated financial statements. The amendments are effective for the Company in 2020. The Company has begun evaluating the impact the adoption of ASU 2016-13 will have on its consolidated financial statements and results of operations. The effect of this change cannot be ascertained at this point, and will depend upon factors including asset components, asset quality and market conditions at the adoption date.  In May 2017, the FASB issued ASU 2017-09, “Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting”. The amendments in this update requires that an entity account for the effects of a modification unless the fair value of the modified award is the same as the fair value of the original award immediately before the original award is modified, the vesting conditions of the modified award are the same as the vesting conditions of the original award immediately before the original award is modified and the classification of the modified award as an equity instrument or a liability instrument is the same as the classification of the original award immediately before the original award is modified. ASU 2017-09 is effective for the Company on a prospective basis in 2018. Due to prospective application, the new guidance is not expected to have an impact on the Company’s consolidated financial statements upon adoption.  ASU 2017-08, "Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities." ASU 2017-08 was issued to enhance the accounting for the amortization of premiums for purchased callable debt securities. This amendment requires that the amortization premium be shortened to the earliest call date. For public business entities, ASU 2017-08 is effective for fiscal years after December 15, 2018, and interim periods within those fiscal years. The Company is currently evaluating the impact of the adoptions of ASU 2017-08 on its consolidated financial statements.

Summary of Significant Accoun32

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Summary of Significant Accounting Policies [Abstract]
Summary of Useful Lives of Property, Plant and Equipment	  Years  Buildings 40  Building improvements 7 - 40  Furniture, fixtures and equipment 3 - 5  Leasehold improvements Shorter of useful life or term of lease 

Securities Available for Sale (

Securities Available for Sale (Tables)	12 Months Ended
	Dec. 31, 2017
Securities Available for Sale [Abstract]
Amortized Cost and Gross Unrealized Gains and Losses on Securities Available for Sale	   December 31, 2017  Gross Gross  Amortized Unrealized Unrealized  Cost Gains Losses Fair Value  (In Thousands)  Mortgage-backed securities:  Due after one year through five years $ 3,276 $ 4 $ 76 $ 3,204  Due after five years through ten years 622 - 10 612  Due after ten years 110,156 44 2,222 107,978   Municipal obligations:  Due within one year 2,506 - 4 2,502  Preferred Stock: - - - -  Due after 10 years 8,118 235 60 8,293  $ 124,678 $ 283 $ 2,372 $ 122,589     December 31, 2016  Gross Gross  Amortized Unrealized Unrealized  Cost Gains Losses Fair Value  (In Thousands)  Mortgage-backed securities  Due after five years through ten years $ 6,230 $ 23 $ 86 $ 6,167  Due after ten years 80,594 65 4,354 76,305   Municipal obligations:  Due within one year 6,968 - 7 6,961  Preferred Stock:  Due after 10 years 5,356 - 24 5,332  $ 99,148 $ 88 $ 4,471 $ 94,765 
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	   Less than 12 Months More than 12 Months Total  Fair Unrealized Fair Unrealized Fair Unrealized  Value Losses Value Losses Value Losses  (In Thousands)  December 31, 2017  Residential mortgage-backed securities $ 94,909 $ 1,951 $ 12,309 $ 357 $ 107,218 $ 2,308  Municipal obligations 2,502 4 - - 2,502 4  Preferred stock 3,469 60 - - 3,469 60  $ 100,880 $ 2,015 $ 12,309 $ 357 $ 113,189 $ 2,372    December 31, 2016  Residential mortgage-backed securities $ 74,672 $ 4,313 $ 3,379 $ 127 $ 78,051 $ 4,440  Municipal obligations 6,961 7 - - 6,961 7  Preferred stock 1,983 24 - - 1,983 24  $ 83,616 $ 4,344 $ 3,379 $ 127 $ 86,995 $ 4,471 

Loans Receivable and Allowanc34

Loans Receivable and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2017
Loans Receivable and Allowance for Loan Losses [Abstract]
Recorded Investments in Loans Receivable	The following table presents the recorded investment in loans receivable at December 31, 201 7 and December 31, 201 6 by segment and class:     December 31, 2017 December 31, 2016  (In Thousands)  Originated loans:  Residential one-to-four family $ 182,544 $ 142,081  Commercial and multi-family 1,213,390 1,056,806  Construction 50,497 70,867  Commercial business (1) 66,775 63,444  Home equity (2) 38,725 32,417  Consumer 1,183 1,269   Sub-total 1,553,114 1,366,884   Acquired loans recorded at fair value:  Residential one-to-four family 47,808 56,310  Commercial and multi-family 46,609 60,422  Construction - -  Commercial business (1) 4,057 4,460  Home equity (2) 8,955 13,877  Consumer 122 225   Sub-total 107,551 135,294   Acquired loans with deteriorated credit:  Residential one-to-four family 1,413 1,443  Commercial and multi-family 731 753  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total 2,144 2,196   Total Loans 1,662,809 1,504,374   Less:  Deferred loan fees, net (1,757) (2,006)  Allowance for loan losses (17,375) (17,209)   (19,132) (19,215)    Total Loans, net $ 1,643,677 $ 1,485,159 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Acquired Loans Included In Loans Receivable in Consolidated Statements of Financial Condition	   December 31, December 31,  2017 2016   Unpaid principal balance $ 114,542 $ 140,049  Recorded investment 109,695 137,490  
Accretable And Non-Accretable Discount on Loans Acquired	The following table presents changes in the accretable discount on loans acquired for the years ended December 31, 201 7 and 201 6 . (In Thousands):     Years Ended December 31,  2017 2016   Balance, Beginning of Period $ 39,119 $ 53,612  Accretion (10,983) (14,976)  Net Reclassification from Non-Accretable Yield 328 483  Balance, End of Period $ 28,464 $ 39,119      The following table presents changes in the non-accretable yield on loans acquired for the years ended December 31, 201 7 and 201 6 . (In Thousands):      Years Ended December 31,  2017 2016   Balance, Beginning of Period $ 2,558 $ 3,041  Net Reclassification to Accretable Difference (328) (483)  Balance, End of Period $ 2,230 $ 2,558 
Related Party Loans	   Years Ended December 31,  2017 2016   (In Thousands)   Balance – beginning $ 8,552 $ 12,444  Loans originated - 386  Collections of principal (1,075) (1,461)  Change in related party status 13,624 (2,817)   Balance - ending $ 21,101 $ 8,552 
Allowance for Loan Losses	The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 7 and recorded investment in loans receivable at December 31, 201 7 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):      Commercial & Commercial Home  Residential Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans $ 2,098 $ 10,621 $ 736 $ 3,079 $ 374 $ 2 $ 69 $ 16,979  Acquired loans recorded at fair value 170 - - - 4 - - 174  Acquired loans with deteriorated credit 43 13 - - - - - 56  Beginning Balance, January 1, 2017 2,311 10,634 736 3,079 378 2 69 17,209   Charge-offs:  Originated Loans - 190 - 1,553 - 11 - - 1,754  Acquired loans recorded at fair value 336 - - - 54 - - - 390  Acquired loans with deteriorated credit - - - - - - - - -  Sub-total 336 190 - 1,553 54 11 - 2,144   Recoveries:  Originated Loans - 182 - - - - - 182  Acquired loans recorded at fair value - - - - - - - -  Acquired loans with deteriorated credit - - 18 - - - 18  Sub-total - 182 - 18 - - - 200   Provisions:  Originated Loans 270 1,043 (218) 492 (36) 15 108 1,674  Acquired loans recorded at fair value 408 - - - 50 - - 458  Acquired loans with deteriorated credit (3) (1) - (18) - - - (22)  Sub-total 675 1,042 (218) 474 14 15 108 2,110   Totals:  Originated Loans 2,368 11,656 518 2,018 338 6 177 17,081  Acquired loans recorded at fair value 242 - - - - - - 242  Acquired loans with deteriorated credit 40 12 - - - - - 52  Ending Balance, December 31, 2017 $ 2,650 $ 11,668 $ 518 $ 2,018 $ 338 $ 6 $ 177 $ 17,375   Loans Receivables:   Ending Balance Originated Loans 182,544 1,213,390 50,497 66,775 38,725 1,183 - 1,553,114  Ending Balance Acquired Loans 47,808 46,609 - 4,057 8,955 122 - 107,551  Ending Balance Acquired loans with deteriorated credit 1,413 731 - - - - - 2,144  Total Gross Loans $ 231,765 $ 1,260,730 $ 50,497 $ 70,832 $ 47,680 $ 1,305 - $ 1,662,809   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans 7,944 12,212 - 1,780 1,042 - - 22,978  Ending Balance Acquired Loans 7,548 5,032 - - 302 - - 12,882  Ending Balance Acquired loans with deteriorated credit 1,413 513 - - - - - 1,926  Ending Balance Loans individually evaluated  for impairment $ 16,905 $ 17,757 $ - $ 1,780 $ 1,344 $ - $ - $ 37,786   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans 174,600 1,201,178 50,497 64,995 37,683 1,183 - 1,530,136  Ending Balance Acquired Loans 40,260 41,577 - 4,057 8,653 122 - 94,669  Ending Balance Acquired loans with deteriorated credit - 218 - - - - - 218  Ending Balance Loans collectively evaluated  for impairment $ 214,860 $ 1,242,973 $ 50,497 $ 69,052 $ 46,336 $ 1,305 $ - $ 1,625,023 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 6 and recorded investment in loans receivable at December 31, 201 6 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):    Commercial & Commercial Home  Residential Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans $ 2,107 $ 11,643 $ 722 $ 1,749 $ 369 $ 879 $ 168 $ 17,637  Acquired loans recorded at fair value 270 17 - - 50 - - 337  Acquired loans with deteriorated credit 47 14 - 4 3 - - 68  Beginning Balance, January 1, 2016 2,424 11,674 722 1,753 422 879 168 18,042   Charge-offs:  Originated Loans - 367 - 160 - - - - 527  Acquired loans recorded at fair value 459 38 - 3 54 - - - 554  Acquired loans with deteriorated credit - - - - - - - - -  Sub-total 459 405 - 163 54 - - 1,081   Recoveries:  Originated Loans - 74 - - - - - 74  Acquired loans recorded at fair value - 4 - - 14 - - 18  Acquired loans with deteriorated credit - - - 129 - - - 129  Sub-total - 78 - 129 14 - - 221   Provisions:  Originated Loans (9) (729) 14 1,490 5 (877) (99) (205)  Acquired loans recorded at fair value 359 17 - 3 (6) - - 373  Acquired loans with deteriorated credit (4) (1) - (133) (3) - - (141)  Sub-total 346 (713) 14 1,360 (4) (877) (99) 27   Totals:  Originated Loans 2,098 10,621 736 3,079 374 2 69 16,979  Acquired loans recorded at fair value 170 - - - 4 - - 174  Acquired loans with deteriorated credit 43 13 - - - - - 56  Ending Balance, December 31, 2016 $ 2,311 $ 10,634 $ 736 $ 3,079 $ 378 $ 2 $ 69 $ 17,209   Loans Receivables:   Ending Balance Originated Loans 142,081 1,056,806 70,867 63,444 32,417 1,269 - 1,366,884  Ending Balance Acquired Loans 56,310 60,422 - 4,460 13,877 225 - 135,294  Ending Balance Acquired loans with deteriorated credit 1,443 753 - - - - - 2,196  Total Gross Loans $ 199,834 $ 1,117,981 $ 70,867 $ 67,904 $ 46,294 $ 1,494 $ - $ 1,504,374   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans 10,651 12,325 6 4,088 1,362 - - 28,432  Ending Balance Acquired Loans 7,600 6,356 - - 1,065 - - 15,021  Ending Balance Acquired loans with deteriorated credit 1,443 523 - - - - - 1,966  Ending Balance Loans individually evaluated  for impairment $ 19,694 $ 19,204 $ 6 $ 4,088 $ 2,427 $ - $ - $ 45,419   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans 131,430 1,044,481 70,861 59,356 31,055 1,269 - 1,338,452  Ending Balance Acquired Loans 48,710 54,066 - 4,460 12,812 225 - 120,273  Ending Balance Acquired loans with deteriorated credit - 230 - - - - - 230  Ending Balance Loans collectively evaluated  for impairment $ 180,140 $ 1,098,777 $ 70,861 $ 63,816 $ 43,867 $ 1,494 $ - $ 1,458,955 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the activity in the Bank’s allowance for loan losses for the year ended December 31, 201 5 and recorded investment in loans receivable at December 31, 201 5 . The table also details the amount of total loans receivable, that are evaluated individually, and collectively, for impairment, and the related portion of the allowance for loan losses that is allocated to each loan class (In Thousands):    Commercial Commercial Home  Residential & Multi-family Construction Business (1) equity (2) Consumer Unallocated Total  Allowance for credit losses:   Originated Loans: $ 2,364 $ 10,028 $ 1,080 $ 876 $ 333 $ 449 $ 121 $ 15,251  Acquired loans recorded at fair value: 417 102 - - 58 - - 577  Acquired loans with deteriorated credit: 64 23 - 233 3 - - - 323  Beginning Balance, January 1, 2015 2,845 10,153 1,080 1,109 394 449 121 16,151   Charge-offs:  Originated Loans: - 10 - 80 - - - - 90  Acquired loans recorded at fair value: 67 - - - 106 - - - 173  Acquired loans with deteriorated credit: - - - 199 - - - - 199  Sub-total: 67 10 - 279 106 - - 462   Recoveries:  Originated Loans: - 70 - - - - - 70  Acquired loans recorded at fair value: - - - - 3 - - 3  Acquired loans with deteriorated credit: - - - - - - - -  Sub-total: - 70 - - 3 - - 73   Provisions:  Originated Loans: (257) 1,555 (358) 953 36 430 47 2,406  Acquired loans recorded at fair value: (80) (85) - - 95 - - (70)  Acquired loans with deteriorated credit: (17) (9) - (30) - - - (56)  Sub-total: (354) 1,461 (358) 923 131 430 47 2,280   Totals:  Originated Loans: 2,107 11,643 722 1,749 369 879 168 17,637  Acquired loans recorded at fair value: 270 17 - - 50 - - 337  Acquired loans with deteriorated credit: 47 14 - 4 3 - - 68  Ending Balance, December 31, 2015 $ 2,424 $ 11,674 $ 722 $ 1,753 $ 422 $ 879 $ 168 $ 18,042   Loans Receivables:   Ending Balance Originated Loans: 117,165 982,828 64,008 70,340 31,237 2,365 - 1,267,943  Ending Balance Acquired Loans: 67,587 79,308 - 4,281 18,851 263 - 170,290  Ending Balance Acquired loans with deteriorated credit: 1,474 669 - 167 71 - - 2,381  Total Gross Loans: $ 186,226 $ 1,062,805 $ 64,008 $ 74,788 $ 50,159 $ 2,628 $ - $ 1,440,614   Ending Balance: Loans individually evaluated  for impairment:  Ending Balance Originated Loans: 9,120 14,681 - 4,203 1,456 1,463 - 30,923  Ending Balance Acquired Loans: 9,885 6,775 - - 1,363 - - 18,023  Ending Balance Acquired loans with deteriorated credit: 1,474 426 - 167 71 - - 2,138  Ending Balance Loans individually evaluated  for impairment: $ 20,479 $ 21,882 $ - $ 4,370 $ 2,890 $ 1,463 $ - $ 51,084   Ending Balance: Loans collectively evaluated  for impairment:  Ending Balance Originated Loans: 108,045 968,147 64,008 66,137 29,781 902 - 1,237,020  Ending Balance Acquired Loans: 57,702 72,533 - 4,281 17,488 263 - 152,267  Ending Balance Acquired loans with deteriorated credit: - 243 - - - - - 243  Ending Balance Loans collectively evaluated  for impairment: $ 165,747 $ 1,040,923 $ 64,008 $ 70,418 $ 47,269 $ 1,165 $ - $ 1,389,530    __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Non-Accruing Loans	The table below sets forth the amounts and types of non-accrual loans in the Bank’s loan portfolio, at December 31, 201 7 and 201 6 , respectively. Loans are placed on non-accrual status when they become more than 90 days delinquent, or when the collection of principal and/or interest become doubtful. As of December 31, 201 7 and 201 6 , non-accrual loans differed from the amount of total loans past due greater than 90 days due to troubled debt restructuring of loans which are maintained on non-accrual status for a minimum of six months until the borrower has demonstrated its ability to satisfy the terms of the restructured loan.       As of December 31, 2017 As of December 31, 2016  (In Thousands) (In Thousands)  Non-Accruing Loans:   Originated loans:  Residential one-to-four family $ 2,545 $ 3,693  Commercial and multi-family 6,762 5,437  Construction - -  Commercial business (1) 299 726  Home equity (2) 201 416  Consumer - 6   Sub-total: $ 9,807 $ 10,278   Acquired loans recorded at fair value:  Residential one-to-four family $ 2,372 $ 3,429  Commercial and multi-family 850 1,182  Construction - -  Commercial business (1) - -  Home equity (2) 7 763  Consumer - -   Sub-total: $ 3,229 $ 5,374   Acquired loans with deteriorated credit:  Residential one-to-four family $ - $ -  Commercial and multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: $ - $ -   Total $ 13,036 $ 15,652 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Impaired Loans	The following table summarizes the recorded investment and unpaid principal balances where there is no related allowance on impaired loans by portfolio class for the years ended December 31, 201 7 and December 31, 201 6 . (In Thousands):       As of December 31, 2017 As of December 31, 2016  Recorded Unpaid Principal Related Recorded Unpaid Principal Related  Originated loans Investment Balance Allowance Investment Balance Allowance  with no related allowance recorded:   Residential one-to-four family $ 2,073 $ 2,236 $ - $ 5,158 $ 5,341 $ -  Commercial and multi-family 12,212 12,763 - 10,498 10,722 -  Construction - - - 6 6 -  Commercial business (1) 181 908 - 1,022 1,966 -  Home equity (2) 885 932 - 1,022 1,101 -  Consumer - - - - - -   Sub-total: $ 15,351 $ 16,839 $ - $ 17,706 $ 19,136 $ -   Acquired loans recorded at fair  value with no related allowance  recorded:   Residential one-to-four family $ 4,119 $ 4,285 $ - $ 5,577 $ 6,149 $ -  Commercial and Multi-family 3,772 3,773 - 5,575 5,710 -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 216 268 - 545 650 -  Consumer - - - - - -   Sub-total: $ 8,107 $ 8,326 $ - $ 11,697 $ 12,509 $ -   Acquired loans with deteriorated  credit with no related allowance  recorded:   Residential one-to-four family $ 1,413 $ 2,031 $ - $ 1,443 $ 2,069 $ -  Commercial and Multi-family 513 537 - 523 552 -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ 1,926 $ 2,568 $ - $ 1,966 $ 2,621 $ -   Total Impaired Loans  with no related allowance recorded: $ 25,384 $ 27,733 $ - $ 31,369 $ 34,266 $ -   __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the recorded investment, unpaid principal balance, and the related allowance on impaired loans by portfolio class for the years ended December 31, 201 7 and December 31, 201 6 . (In Thousands):     As of December 31, 2017 As of December 31, 2016  Recorded Unpaid Principal Related Recorded Unpaid Principal Related  Originated loans Investment Balance Allowance Investment Balance Allowance  with an allowance recorded:   Residential one-to-four family $ 5,871 $ 5,871 $ 508 $ 5,493 $ 5,493 $ 496  Commercial and Multi-family - - - 1,827 1,866 380  Construction - - - - - -  Commercial business (1) 1,599 2,431 1,033 3,066 4,006 2,359  Home equity (2) 157 157 25 340 340 32  Consumer - - - - - -   Sub-total: $ 7,627 $ 8,459 $ 1,566 $ 10,726 $ 11,705 $ 3,267   Acquired loans recorded at fair  value with an allowance  recorded:   Residential one-to-four family $ 3,429 $ 3,580 $ 281 $ 2,023 $ 2,080 $ 202  Commercial and Multi-family 1,260 1,313 179 781 781 37  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 86 86 7 520 571 24  Consumer - - - - - -   Sub-total $ 4,775 $ 4,979 $ 467 $ 3,324 $ 3,432 $ 263   Acquired loans with deteriorated  credit with an allowance  recorded:   Residential one-to-four family $ - $ - $ - $ - $ - $ -  Commercial and Multi-family - - - - - -  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ - $ - $ - $ - $ - $ -   Total Impaired Loans  with an allowance recorded: $ 12,402 $ 13,438 $ 2,033 $ 14,050 $ 15,137 $ 3,530   Total Impaired Loans  with no related allowance recorded: $ 25,384 $ 27,733 $ - $ 31,369 $ 34,266 $ -   Total Impaired Loans: $ 37,786 $ 41,171 $ 2,033 $ 45,419 $ 49,403 $ 3,530  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the average recorded investment and actual interest income recognized on impaired loans with no related allowance recorded by portfolio class for the years ended December 31, 201 7 and 201 6 . (In Thousands):      Years Ended December 31,  2017 2017 2016 2016   Average Interest Average Interest  Recorded Income Recorded Income  Originated loans Investment Recognized Investment Recognized  with no related allowance recorded:   Residential one-to-four family $ 2,859 $ 39 $ 4,613 $ 281  Commercial and multi-family 12,351 271 10,820 563  Construction - - 746 -  Commercial business (1) 441 - 1,678 116  Home equity (2) 878 38 1,002 60  Consumer - - 2 -   Sub-total: $ 16,529 $ 348 $ 18,861 $ 1,020   Acquired loans recorded at fair value  with no related allowance recorded:   Residential one-to-four family $ 4,758 $ 138 $ 5,234 $ 345  Commercial and Multi-family 3,996 220 5,055 332  Construction - - - -  Commercial business (1) - - - -  Home equity (2) 454 13 583 37  Consumer - - - -   Sub-total: $ 9,208 $ 371 $ 10,872 $ 714   Acquired loans with deteriorated  credit with no related allowance  recorded:   Residential one-to-four family $ 1,423 $ 87 $ 1,455 $ 89  Commercial and Multi-family 517 27 527 28  Construction - - - -  Commercial business (1) - - - -  Home equity (2) - - 19 -  Consumer - - - -   Sub-total: $ 1,940 $ 114 $ 2,001 $ 117   Total Impaired Loans  with no related allowance recorded: $ 27,677 $ 833 $ 31,734 $ 1,851  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.    Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes the average recorded investment and actual interest income recognized on impaired loans with allowance recorded by portfolio class for the years ended December 31, 201 7 and 201 6 . (In Thousands):     Years Ended December 31,  2017 2017 2016 2016   Average Interest Average Interest  Recorded Income Recorded Income  Originated loans Investment Recognized Investment Recognized  with an allowance recorded:   Residential one-to-four family $ 6,024 $ 213 $ 5,564 $ 253  Commercial and Multi-family 421 - 3,122 39  Construction - - - -  Commercial business (1) 2,958 81 2,406 139  Home equity (2) 221 6 278 16  Consumer - - 632 -   Sub-total: $ 9,624 $ 300 $ 12,002 $ 447    Acquired loans recorded at fair value  with an allowance recorded:   Residential one-to-four family $ 2,989 $ 118 $ 3,342 $ 69  Commercial and Multi-family 1,601 38 1,077 44  Construction - - - -  Commercial business (1) - - - -  Home equity (2) 96 6 674 17  Consumer - - - -   Sub-total $ 4,686 $ 162 $ 5,093 $ 130   Acquired loans with deteriorated credit  with an allowance recorded:   Residential one-to-four family $ - $ - $ - $ -  Commercial and Multi-family - - - -  Construction - - - -  Commercial business (1) - - 41 -  Home equity (2) - - - -  Consumer - - - -   Sub-total: $ - $ - $ 41 $ -   Total Impaired Loans  with an allowance recorded: $ 14,310 $ 462 $ 17,136 $ 577  __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Troubled Debt Restructurings	The following table presents the total troubled debt restructured loans at December 31, 201 7 , excluding the purchase impairment mark on the acquired loans with deteriorated credit:      Accrual Non-accrual Total  December 31, 2017 # of Loans Amount # of Loans Amount # of Loans Amount  (Actual) (In Thousands) (Actual) (In Thousands) (Actual) (In Thousands)  Originated loans:  Residential one-to-four family 5 $ 2,352 2 $ 1,086 7 $ 3,438  Commercial and multi-family 8 4,846 8 5,416 16 10,262  Construction - - - - - -  Commercial business (1) 1 411 2 57 3 468  Home equity (2) 5 786 1 44 6 830  Consumer - - - - - -   Sub-total: 19 $ 8,395 13 $ 6,603 32 $ 14,998   Acquired loans recorded at fair value:  Residential one-to-four family 21 $ 4,992 4 $ 1,215 25 $ 6,207  Commercial and Multi-family 11 3,840 1 590 12 4,430  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 2 262 - - 2 262  Consumer - - - - - -   Sub-total: 34 $ 9,094 5 $ 1,805 39 $ 10,899   Acquired loans with deteriorated credit:  Residential one-to-four family 5 $ 2,031 $ 5 $ 2,031  Commercial and Multi-family 1 538 1 538  Construction - - - -  Commercial business (1) - - - -  Home equity (2) - - - -  Consumer - - - -   Sub-total: 6 $ 2,569 - $ - 6 $ 2,569   Total 59 $ 20,058 18 $ 8,408 77 $ 28,466 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   All TDRs were considered impaired and therefore were individually evaluated for impairment in the calculation of the allowance for loan losses. Prior to their classification as TDRs, certain of these loans had been collectively evaluated for impairment in the calculation of the allowance for loan losses.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table presents the total troubled debt restructured loans at December 31, 201 6 , excluding the purchase impairment mark on the acquired loans with deteriorated credit:    Accrual Non-accrual Total  December 31, 2016 # of Loans Amount # of Loans Amount # of Loans Amount  (Actual) (In Thousands) (Actual) (In Thousands) (Actual) (In Thousands)  Originated loans:  Residential one-to-four family 8 $ 2,687 - $ - 8 $ 2,687  Commercial and multi-family 9 5,141 8 2,297 17 7,438  Construction - - - - - -  Commercial business (1) 2 1,868 1 345 3 2,213  Home equity (2) 5 817 1 46 6 863  Consumer - - - - - -  .  Sub-total: 24 $ 10,513 10 $ 2,688 34 $ 13,201   Acquired loans recorded at fair value:  Residential one-to-four family 18 $ 3,979 5 $ 1,893 23 $ 5,872  Commercial and Multi-family 13 4,807 1 583 14 5,390  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) 2 265 1 219 3 484  Consumer - - - - - -   Sub-total: 33 $ 9,051 7 $ 2,695 40 $ 11,746   Acquired loans with deteriorated credit:  Residential one-to-four family 5 $ 2,069 - $ - 5 $ 2,069  Commercial and Multi-family 1 552 - - 1 552  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: 6 $ 2,621 - $ - 6 $ 2,621   Total 63 $ 22,185 17 $ 5,383 80 $ 27,568 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  A troubled debt restructuring (“TDR”) is a loan that has been modified whereby the Bank has agreed to make certain concessions to a borrower to meet the needs of both the borrower and the Bank to maximize the ultimate recovery of a loan. TDR occurs when a borrower is experiencing, or is expected to experience, financial difficulties and the loan is modified using a modification that would otherwise not be granted to the borrower. The types of concessions granted are generally included, but not limited to interest rate reductions, limitations on the accrued interest charged, term extensions, and deferment of principal.  The following table summarizes information in regards to troubled debt restructurings during the year ended December 31, 201 7 (In thousands):     Year Ended December 31, 2017 Pre-Modification Outstanding Post-Modification Outstanding  Number of Contracts Recorded Investments Recorded Investments   Originated loans:  Residential one-to-four family 2 $ 1,445 $ 1,556  Commercial and multi-family 3 4,441 4,608  Construction - - -  Commercial business (1) - - -  Home equity (2) - - -  Consumer - - -   Sub-total: 5 $ 5,886 $ 6,164   Acquired loans recorded at fair value:  Residential one-to-four family 5 $ 1,052 $ 1,266  Commercial and Multi-family - - -  Construction - - -  Commercial business (1) - - -  Home equity (2) - - -  Consumer - - -   Sub-total: 5 $ 1,052 $ 1,266   Acquired loans with deteriorated credit:  Residential one-to-four family - $ - $ -  Commercial and Multi-family - - -  Construction - - -  Commercial business (1) - - -  Home equity (2) - - -  Consumer - - -   Sub-total: - $ - $ -   Total 10 $ 6,938 $ 7,430 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)   The following table summarizes information in regards to troubled debt restructurings during the year ended December 31, 201 6 (In thousands):     Year Ended December 31, 2016 Pre-Modification Outstanding Post-Modification Outstanding  Number of Contracts Recorded Investments Recorded Investments   Originated loans:  Residential one-to-four family 1 $ 71 $ 71  Commercial and multi-family 5 1,816 1,920  Construction - - -  Commercial business (1) 1 - 1,137  Home equity (2) 1 155 162  Consumer - - -   Sub-total: 8 $ 2,042 $ 3,290   Acquired loans recorded at fair value:  Residential one-to-four family 1 $ 278 $ 320  Commercial and Multi-family - - -  Construction - - -  Commercial business (1) - - -  Home equity (2) 1 223 223  Consumer - - -   Sub-total: 2 $ 501 $ 543   Acquired loans with deteriorated credit:  Residential one-to-four family - $ - $ -  Commercial and Multi-family - - -  Construction - - -  Commercial business (1) - - -  Home equity (2) - - -  Consumer - - -   Sub-total: - $ - $ -   Total 10 $ 2,543 $ 3,833 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.    Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes information in regards to troubled debt restructurings for which there was a payment default, within twelve months of restructuring, (In thousands):    Year Ended December 31, 2017  Number of Contracts Recorded Investment   Originated loans:  Residential one-to-four family 1 $ 297  Commercial and multi-family 2 3,400  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: 3 $ 3,697   Acquired loans recorded at fair value:  Residential one-to-four family 2 $ 388  Commercial and Multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: 2 $ 388   Acquired loans with deteriorated credit:  Residential one-to-four family - $ -  Commercial and Multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: - $ -   Total 5 $ 4,085 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.  Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table summarizes information in regards to troubled debt restructurings for which there was a payment default, within twelve months of restructuring, (In thousands):     Year Ended December 31, 2016  Number of Contracts Recorded Investment   Originated loans:  Residential one-to-four family 1 $ 70  Commercial and multi-family 2 637  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: 3 $ 707   Acquired loans recorded at fair value:  Residential one-to-four family - $ -  Commercial and Multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: - $ -   Acquired loans with deteriorated credit:  Residential one-to-four family - $ -  Commercial and Multi-family - -  Construction - -  Commercial business (1) - -  Home equity (2) - -  Consumer - -   Sub-total: - $ -   Total 3 $ 707 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Delinquency Status of Total Loans	The following table sets forth the delinquency status of total loans receivable at December 31, 201 7 :    Loans Receivable  30-59 Days 60-90 Days Greater Than Total Past Total Loans >90 Days  Past Due Past Due 90 Days Due Current Receivable and Accruing  (In Thousands)  Originated loans:  Residential one-to-four family $ 1,358 $ 1,604 $ 2,273 $ 5,235 $ 177,309 $ 182,544 $ -  Commercial and multi-family 20,210 887 - 21,097 1,192,293 1,213,390 -  Construction 5,687 - - 5,687 44,810 50,497 -  Commercial business (1) 161 640 103 904 65,871 66,775 -  Home equity (2) 314 215 44 573 38,152 38,725 -  Consumer 8 - - 8 1,175 1,183 -   Sub-total: $ 27,738 $ 3,346 $ 2,420 $ 33,504 $ 1,519,610 $ 1,553,114 $ -   Acquired loans recorded at fair value:  Residential one-to-four family $ 643 $ 379 $ 1,738 $ 2,760 $ 45,048 47,808 $ 315  Commercial and multi-family 1,539 - 850 2,389 44,220 46,609 -  Construction - - - - - - -  Commercial business (1) 92 - - 92 3,965 4,057 -  Home equity (2) 240 324 7 571 8,384 8,955 -  Consumer - - - - 122 122 -   Sub-total: $ 2,514 $ 703 $ 2,595 $ 5,812 $ 101,739 $ 107,551 $ 315   Acquired loans with deteriorated credit:  Residential one-to-four family $ - $ - $ - $ - $ 1,413 $ 1,413 $ -  Commercial and multi-family - - - - 731 731 -  Construction - - - - - - -  Commercial business (1) - - - - - - -  Home equity (2) - - - - - - -  Consumer - - - - - - -   Sub-total: $ - $ - $ - $ - $ 2,144 $ 2,144 $ -   Total $ 30,252 $ 4,049 $ 5,015 $ 39,316 $ 1,623,493 $ 1,662,809 $ 315 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.   Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table sets forth the delinquency status of total loans receivable at December 31, 201 6 :     Loans Receivable  30-59 Days 60-90 Days Greater Than Total Past Total Loans >90 Days  Past Due Past Due 90 Days Due Current Receivable and Accruing  (In Thousands)   Originated loans:  Residential one-to-four family $ 2,873 $ 963 $ 1,889 $ 5,725 $ 136,356 $ 142,081 $ -  Commercial and multi-family 10,472 989 5,182 16,643 1,040,163 1,056,806 2,828  Construction 348 - - 348 70,519 70,867 -  Commercial business (1) 491 69 315 875 62,569 63,444 -  Home equity (2) 78 218 - 296 32,121 32,417 -  Consumer - - 6 6 1,263 1,269 -   Sub-total: $ 14,262 $ 2,239 $ 7,392 $ 23,893 $ 1,342,991 $ 1,366,884 $ 2,828   Acquired loans recorded at fair value:  Residential one-to-four family $ 498 $ 515 $ 3,138 $ 4,151 $ 52,159 56,310 $ -  Commercial and multi-family 1,958 221 737 2,916 57,506 60,422 -  Construction - - - - - - -  C ommercial business (1) - - - - 4,460 4,460 -  Home equity (2) 309 132 280 721 13,156 13,877 -  Consumer - - - - 225 225 -   Sub-total: $ 2,765 $ 868 $ 4,155 $ 7,788 $ 127,506 $ 135,294 $ -   Acquired loans with deteriorated credit:  Residential one-to-four family $ - $ - $ - $ - $ 1,443 $ 1,443 $ -  Commercial and multi-family - - - - 753 753 -  Construction - - - - - - -  Commercial business (1) - - - - - - -  Home equity (2) - - - - - - -  Consumer - - - - - - -   Sub-total: $ - $ - $ - $ - $ 2,196 $ 2,196 $ -   Total $ 17,027 $ 3,107 $ 11,547 $ 31,681 $ 1,472,693 $ 1,504,374 $ 2,828 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.
Loan Portfolio By Pass Rating	The following table presents the loan portfolio types summarized by the aggregate pass rating and the classified ratings of special mention, substandard, doubtful, and loss within the Company’s internal risk rating system as of December 31, 201 7 . (In Thousands):      Pass Special Mention Substandard Doubtful Loss Total   Originated loans:  Residential one-to-four family $ 174,985 $ 5,014 $ 2,545 $ - $ - $ 182,544  Commercial and multi-family 1,199,786 2,676 10,928 - - 1,213,390  Construction 50,262 235 - - - 50,497  Commercial business (1) 63,323 1,672 1,738 - 42 66,775  Home equity (2) 38,018 451 256 - - 38,725  Consumer 1,177 6 - - - 1,183   Sub-total: $ 1,527,551 $ 10,054 $ 15,467 $ - $ 42 $ 1,553,114   Acquired loans recorded at fair value:  Residential one-to-four family $ 44,472 $ 481 $ 2,855 $ - $ - 47,808  Commercial and multi-family 43,569 402 2,638 - - 46,609  Construction - - - - - -  Commercial business (1) 4,057 - - - - 4,057  Home equity (2) 8,896 20 32 - 7 8,955  Consumer 122 - - - - 122   Sub-total: $ 101,116 $ 903 $ 5,525 $ - $ 7 $ 107,551   Acquired loans with deteriorated credit:  Residential one-to-four family $ 153 $ 571 $ 689 $ - $ - 1,413  Commercial and multi-family 218 513 - - - 731  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ 371 $ 1,084 $ 689 $ - $ - $ 2,144   Total Gross Loans $ 1,629,038 $ 12,041 $ 21,681 $ - $ 49 $ 1,662,809 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit.    Note 5 - Loans Receivable and Allowance for Loan Losses (Continued)  The following table presents the loan portfolio types summarized by the aggregate pass rating and the classified ratings of special mention, substandard, doubtful, and loss within the Company’s internal risk rating system as of December 31, 201 6 . (In Thousands):      Pass Special Mention Substandard Doubtful Loss Total   Originated loans:  Residential one-to-four family $ 131,807 $ 6,393 $ 3,881 $ - $ - $ 142,081  Commercial and multi-family 1,039,519 6,263 10,811 - 213 1,056,806  Construction 70,391 476 - - - 70,867  Commercial business (1) 57,567 1,789 4,000 - 88 63,444  Home equity (2) 31,052 816 549 - - 32,417  Consumer 1,249 14 6 - - 1,269   Sub-total: $ 1,331,585 $ 15,751 $ 19,247 $ - $ 301 $ 1,366,884   Acquired loans recorded at fair value:  Residential one-to-four family $ 51,628 $ 626 $ 4,056 $ - $ - 56,310  Commercial and multi-family 55,216 1,311 3,895 - - 60,422  Construction - - - - - -  Commercial business (1) 4,460 - - - - 4,460  Home equity (2) 12,652 424 782 - 19 13,877  Consumer 225 - - - - 225   Sub-total: $ 124,181 $ 2,361 $ 8,733 $ - $ 19 $ 135,294   Acquired loans with deteriorated credit:  Residential one-to-four family $ 147 $ 272 $ 1,024 $ - $ - 1,443  Commercial and multi-family 230 523 - - - 753  Construction - - - - - -  Commercial business (1) - - - - - -  Home equity (2) - - - - - -  Consumer - - - - - -   Sub-total: $ 377 $ 795 $ 1,024 $ - $ - $ 2,196   Total Gross Loans $ 1,456,143 $ 18,907 $ 29,004 $ - $ 320 $ 1,504,374 __________ (1) Includes business lines of credit. (2) Includes home equity lines of credit

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Premises and Equipment [Abstract]
Summary of Premises and Equipment	   December 31,  2017 2016  (In Thousands)   Land $ 2,116 $ 2,116  Buildings and improvements 14,853 14,662  Leasehold improvements 5,968 4,987  Furniture, fixtures and equipment 10,800 10,064   33,737 31,829  Accumulated depreciation and amortization (14,969) (12,447)   $ 18,768 $ 19,382 
Minimum Obligation under Non-cancelable Lease Agreement	   2018 $ 2,399  2019 2,065  2020 1,968  2021 1,728  2022 1,553  Thereafter 4,414   $ 14,127 

Interest Receivable (Tables)

Interest Receivable (Tables)	12 Months Ended
	Dec. 31, 2017
Interest Receivable [Abstract]
Summary of Interest Receivable	   December 31,  2017 2016  (In Thousands)   Loans $ 5,845 $ 5,359  Securities 308 214   $ 6,153 $ 5,573 

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2017
Deposits [Abstract]
Schedule of Deposits	   December 31,  2017 2016  (In Thousands)   Demand:  Non-interest bearing $ 201,043 $ 183,821  Interest bearing 297,040 281,773  Money market 258,632 125,614  756,715 591,208   Savings and club 148,022 260,122  Certificates of deposit 664,633 540,875   $ 1,569,370 $ 1,392,205 
Schedule of Maturities of Time Certificates of Deposits	   Amount    2018 $ 419,586  2019 127,723  2020 64,693  2021 31,562  2022 21,069  Thereafter -  $ 664,633  

Short-Term Debt and Long-Term38

Short-Term Debt and Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2017
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Short-term Borrowings	   December 31,  2017 2016 2015   Amount Amount Amount  ( In Thousands)  Balance at end of period $ - $ 20,000 $ -  Average balance outstanding during the year $ 1,016 $ 103 $ 595  Highest month-end balance during the year $ 35,000 $ 20,000 $ 3,000  Average interest rate during the year 1.02 % 0.88 % 0.37 %  Weighted average interest rate at year-end - % 1 % - %  
Long Term Debt	   December 31,  2017 2016  Weighted Average Rate Amount ($000s) Weighted Average Rate Amount ($000s)  Federal Home Loan Bank Advances:  Maturing by December 31,   2017 - % $ - 4.45 % $ 55,000[  2018 1.41 25,000 1.41 25,000  2019 1.86 50,000 1.85 23,000  2020 1.68 40,000 1.46 20,000  2021 1.83 38,000 1.76 10,000  2022 2.03 32,000 1.98 22,000   1.78 % $ 185,000 2.66 % $ 155,000 

Subordinated Debentures (Tables

Subordinated Debentures (Tables)	12 Months Ended
	Dec. 31, 2017
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Summary of Trust Preferred Securities	   Issuance Date Securities Issued Liquidation Value Coupon Rate Maturity Callable by Issuer Beginning   6/17/2004 $4,124,000 $1,000 per Capital Security Floating 3-month LIBOR + 265 Basis Points 6/17/2034 6/17/2009   

Regulatory Matters (Tables)

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2017
Regulatory Matters [Abstract]
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	  For Capital Adequacy To be Well Capitalized under Prompt Corrective  Actual Purposes Action Provisions   Amount Ratio Amount Ratio Amount Ratio  (Dollars in Thousands)  As of December 31, 2017  Bank  Total capital (to risk-weighted assets) $199,637 13.24 % $120,605 8.00 % $150,757 10.00 %  Tier 1 capital (to risk-weighted assets) 182,262 12.09 90,454 6.00 120,605 8.00  Common Equity Tier 1 (to risk-weighted assets) 182,262 12.09 67,841 4.50 97,992 6.50  Tier 1 capital (to average assets) 182,262 9.50 76,712 4.00 95,890 5.00   Company  Total capital (to risk-weighted assets) $201,095 13.33 % $120,605 8.00 % N/A N/A  Tier 1 capital (to risk-weighted assets) 183,720 12.18 90,495 6.00 N/A N/A  Common Equity Tier 1 (to risk-weighted assets) 166,355 11.03 67,871 4.50 N/A N/A  Tier 1 capital (to average assets) 183,720 9.58 76,733 4.00 N/A N/A   As of December 31, 2016  Bank  Total capital (to risk-weighted assets) $154,923 11.34 % $109,330 8.00 % $136,663 10.00 %  Tier 1 capital (to risk-weighted assets) 137,839 10.09 81,998 6.00 109,330 8.00  Common Equity Tier 1 (to risk-weighted assets) 137,839 10.09 61,498 4.50 88,831 6.50  Tier 1 capital (to average assets) 137,839 8.10 68,074 4.00 85,092 5.00   Company  Total capital (to risk-weighted assets) $156,152 11.42 % $109,372 8.00 % N/A N/A  Tier 1 capital (to risk-weighted assets) 139,061 10.17 82,029 6.00 N/A N/A  Common Equity Tier 1 (to risk-weighted assets) 119,473 8.74 61,522 4.50 N/A N/A  Tier 1 capital (to average assets) 139,061 8.17 68,117 4.00 N/A N/A 

Benefits Plans (Tables)

Benefits Plans (Tables)	12 Months Ended
	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Asset Allocation Parameters by Asset Class	   Asset Allocation Parameters by Asset Class  Minimum Target Maximum  Equity  Large-Cap U.S. 48%  Mid/Small-Cap U.S. 14%  Non-U.S. 0%  Total-Equity 40% 62% 60%   Fixed Income  Long/Short Duration 37%  Money Market/Certificates of Deposit 1%  Total-Fixed Income 40% 38% 60%   
Schedule of Fair Value of Plan Assets	The fair values of the Pension Plan assets at December 31, 201 7 , by asset category (see Note 1 6 for the definitions of levels), are as follows:     Asset Category Total (Level 1) (Level 2) (Level 3)   Mutual funds-Equity  Large-Cap Value (a) $ 2,194,188 $ 2,194,188 $ - $ -  Mid-Cap Value (b) 385,971 385,971 - -  Large Blend (e) 1,584,830 1,584,830 - -   Mutual Funds-Fixed Income  World Bond (c) 931,783 931,783 - -  Multi-Sector Bond (d) 979,788 979,788 - -  High Yield Bond (f) 1,007,258 1,007,258 - -   Stock  BCB Common Stock 751,463 751,463 - -   Cash Equivalents  Money Market $ 127,428 $ 127,428 $ - $ -   Total $ 7,962,709 $ 7,962,709 $ - $ -  The fair values of the Company’s pension plan assets at December 31, 201 6, by asset category (see Note 16 for the definitions of levels), are as follows:        Asset Category Total (Level 1) (Level 2) (Level 3)   Mutual funds-Equity  Large-Cap Value (a) $ 2,065,510 $ 2,065,510 $ - $ -  Mid-Cap Value (b) 371,203 371,203 - -  Large Blend (e) 1,415,265 1,415,265 - -   Mutual Funds-Fixed Income  World Bond (c) 985,817 985,817 - -  Multi-Sector Bond (d) 1,008,504 1,008,504 - -  High Yield Bond (f) 1,027,330 1,027,330 - -   Stock  BCB Common Stock 673,725 673,725 - -   Cash Equivalents  Money Market $ 98,372 $ 98,372 $ - $ -   Total $ 7,645,726 $ 7,645,726 $ - $ -              Note 12 - Benefits Plan (Continued)  a) Large-value portfolios invest primarily in big U.S. companies that are less expensive or growing more slowly than other large-cap stocks. Stocks in the top 70% of the capitalization of the U.S. equity market are defined as large cap. Value is defined based on low valuations (low price ratios and high dividend yields) and slow growth (low growth rates for earnings, sales, book value, and cash flow. b) Some mid-cap value portfolios focus on medium-size companies while others land here because they own a mix of small-, mid-, and large-cap stocks. All look for U.S. stocks that are less expensive or growing more slowly than the market. The U.S. mid-cap range for market capitalization typically falls between $1 billion and $8 billion and represents 20% of the total capitalization of the U.S. equity market. Value is defined based on low valuations (low price ratios and high dividend yields) and slow growth (low growth rates for earnings, sales, book value, and cash flow). c) World-bond portfolios invest 40% or more of their assets in foreign bonds. Some world-bond portfolios follow a conservative approach, favoring high-quality bonds from developed markets. Others are more adventurous and own some lower-quality bonds from developed or emerging markets. Some portfolios invest exclusively outside the U.S., while others regularly invest in both U.S. and non- U.S. bonds. d) Multi Sector portfolios seek income by diversifying their assets among several fixed-income sectors, usually U.S. government obligations, foreign bonds, and high-yield domestic debt securities. e) This fund invests in 500 of the largest U.S. companies, which span many different industries and account for about three-fourths of the U.S. Stock Markets value. f) High Yield Bond funds invest at least 65% of assets in bonds rated below BBB. This fund seeks to provide shareholders with a high level of current income with capital growth as a secondary objective.
Summary of Stock Option Activity	  Number of Options Range of Exercise Price Weighted Average Exercise Price Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (000's)    Outstanding at January 1, 2016 417,000 $ 8.93 -15.65 $ 10.75 8.22 years $ 219   Options forfeited - - -  Options exercised - - -  Options granted 160,000 10.92 10.92  Options expired (2,000) 15.11 15.11   Outstanding at December 31, 2016 575,000 $ 8.93 -13.32 $ 10.78 7.94 years $ 1,198   Options forfeited (35,000) 8.93 -13.32 10.75  Options exercised (700) 10.55 10.55  Options granted 350,000 12.40 12.40  Options expired - - -   Outstanding at December 31, 2017 889,300 $ 8.93 -13.32 $ 11.42 8.06 years $ 1,855   Exercisable at December 31, 2017 166,067  
Schedule of Assumptions Used	    The key valuation assumptions and fair value of stock options granted during the twelve months ended December 31, 2017 were:  Directors Employees  Expected life 7.70 years 7.70 years  Risk-free interest rate 2.04 % 2.04 %  Volatility 27.69 % 27.69 %  Dividend yield 4.52 % 4.52 %  Fair value $2.06 $2.06     +   The key valuation assumptions and fair value of stock options granted during the twelve months ended December 31, 2016 were:   Expected life 7.85 years 7.85 years  Risk-free interest rate 1.56 % 1.56 %  Volatility 35.06 % 35.06 %  Dividend yield 5.13 % 5.13 %  Fair value $2.13 $2.13  
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension Plan's Funded Status and Components of Net Periodic Pension Cost	   Change in Benefit Obligation: December 31,  2017 2016  (In Thousands)   Benefit obligation, beginning of year $ 7,488 $ 7,811  Interest cost 300 328  Actuarial loss (gain) 695 (52)  Benefits paid (481) (500)  Lump sum distributions (77) (99)  Benefit obligation, ending $ 7,925 $ 7,488     Change in Plan Assets:   Fair value of assets, beginning of year $ 7,646 $ 6,569  Actual return on plan assets 875 876  Employer contributions - 800  Benefits paid (481) (500)  Lump sum distributions (77) (99)   Fair value of assets, ending $ 7,963 $ 7,646    Reconciliation of Funded Status:   Accumulated benefit obligation $ 7,925 $ 7,488   Projected benefit obligation $ 7,925 $ 7,488   Fair value of assets 7,963 7,646   Funded (unfunded) status, included in other liabilities, net $ 38 $ 158    Valuation assumptions used to determine  benefit obligation at period end:   Discount rate 3.60% 4.14%   Salary increase rate N/A N/A 
Net Periodic Pension and SERP Expense and Valuation Assumptions	   Net Periodic Pension Expense: December 31,  2017 2016  (In Thousands)   Interest cost $ 300 $ 328  Expected return on assets (444) (541)  Amortization of net loss 118 146   Net Periodic Pension Cost (Credit) $ (26) $ (67)    Valuation assumptions used to determine net periodic benefit cost for the year:   Discount rate 4.14% 4.34%  Long term rate of return on plan assets 6.00% 8.00%  Salary increase rate N/A N/A 
Expected Benefit Payments	   2018 $ 536  2019 536  2020 524  2021 507  2022 504  2023-2027 2,418  
Supplemental Executive Retirement Plan (SERP) [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension Plan's Funded Status and Components of Net Periodic Pension Cost	  December 31,  2017 2016  (In Thousands)   Benefit obligation, beginning of year $ 283 $ 332  Interest Cost 10 13  Actuarial loss (gain) 2 -  Benefits paid (62) (62)  Benefit obligation, ending $ 233 $ 283    Change in Plan Assets:   Fair value of assets, beginning of year $ - $ -  Employer contributions 62 62  Benefits paid (62) (62)   Fair value of assets, ending $ - $ -    Reconciliation of Funded Status:   Accumulated benefit obligation $ 233 $ 283   Projected benefit obligation $ 233 $ 283   Fair value of assets - -   Funded status, included in other liabilities $ 233 $ 283    Valuation assumptions used to determine  benefit obligation at period end:   Discount rate 3.64% 4.14%   Salary increase rate N/A N/A 
Net Periodic Pension and SERP Expense and Valuation Assumptions	   December 31,  Net Periodic SERP Expense: 2017 2016  (In Thousands)    Interest Cost $ 10 $ 13   Net Periodic SERP Cost $ 10 $ 13    Valuation assumptions used to determine net periodic benefit cost for the year:   Discount rate 4.14 % 4.34 %   Salary increase rate N/A N/A 
Expected Benefit Payments	   2018 $ 62  2019 62  2020 32  2021 32  2022 32  2023-2027 13  

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Components of Income Tax Expense	   Years Ended December 31,  2017 2016 2015  (In Thousands)   Current income tax expense:  Federal $ 5,020 $ 2,632 $ 3,730  State 1,279 1,139 1,082   6,299 3,771 4,812   Deferred income tax expense:  Federal 1,277 1,439 2  Federal - remeasurement of deferred tax assets and liabilities (a) 2,183 - -  State 472 48 -   3,932 1,487 2   Total Income Tax Expense $ 10,231 $ 5,258 $ 4,814 
Deferred Tax Assets and Liabilities	   December 31,  2017 2016  Deferred income tax assets: (In Thousands)  Allowance for loan losses $ 4,884 $ 7,030  Other real estate owned expenses 78 114  Non-accrual interest 199 342  Benefit Plans - 51  Benefit Plan-accumulated other comprehensive loss 641 873  Valuation adjustment on loans receivable acquired 627 1,045  Unrealized loss on securities available for sale 587 1,791  Net operating loss carry forwards - 23  Other 323 794   7,339 12,063   Deferred income tax liabilities:  Valuation adjustment on premises and equipment acquired 637 926  Depreciation 243 357  SBA Servicing Asset 750 827  Benefit Plans 565 -   2,195 2,110   Net Deferred Tax Asset $ 5,144 $ 9,953 
Effective Income Tax Rate Reconciliation	   Years Ended December 31,  2017 2016 2015  (In Thousands)   Federal income tax expense at statutory rate $ 6,966 $ 4,532 $ 4,101  Increases in income taxes resulting from:  State income tax , net of federal income tax effect 1,148 781 707  Remeasurement of deferred tax assets and liabilities (a) 2,183 - -  Other items, net (66) (55) 6   Effective Income Tax Expense $ 10,231 $ 5,258 $ 4,814   Effective Income Tax Rate 50.6 % 39.7 % 40.7 % 

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2017
Commitments and Contingencies [Abstract]
Loan Related Commitments	   December 31,  2017 2016  (In Thousands)   Loan origination $ 139,451 $ 61,958  Standby letters of credit 2,677 964  Construction loans in process 50,008 41,206  Unused lines of credit 69,987 60,615   $ 262,123 $ 164,743 

Fair Value Measurements and F44

Fair Value Measurements and Fair Values of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2017
Fair Values of Financial Instruments [Abstract]
Fair Value Measurements, Recurring	   (Level 1) (Level 2)  Quoted Prices in Significant (Level 3)  Active Markets Other Significant  for Identical Observable Unobservable  Description Total Assets Inputs Inputs  As of December 31, 2017:  Securities Available for Sale  Residential mortgage backed securities $ 111,794 $ - $ 111,794 $ -  Municipal obligations 2,502 - 2,502 -  Preferred stock 8,293 - 8,293 -  Total Securities Available for Sale $ 122,589 $ - $ 122,589 $ -   As of December 31, 2016:  Securities Available for Sale  Residential mortgage backed securities $ 82,472 $ - $ 82,472 $ -  Municipal obligations 6,961 - 6,961 -  Preferred stock 5,332 - 5,332 -  Total Securities Available for Sale $ 94,765 $ - $ 94,765 $ - 
Fair Value Measurements, Nonrecurring	   (Level 1) (Level 2)  Quoted Prices in Significant (Level 3)  Active Markets Other Significant  for Identical Observable Unobservable  Description Total Assets Inputs Inputs  As of December 31, 2017:  Impaired loans $ 10,369 $ - $ - $ 10,369  Other real estate owned $ 532 $ - $ - $ 532   As of December 31, 2016:  Impaired loans $ 10,519 $ - $ - $ 10,519  Other real estate owned $ 3,525 $ - $ - $ 3,525 
Quantitative Information about Level 3 Fair Value Measurements	 The following table presents additional quantitative information about assets measured at fair value on a nonrecurring basis and for which the Company has utilized adjusted Level 3 inputs to determine fair value, (Dollars in thousands):      Quantitative Information about Level 3 Fair Value Measurements  Fair Value Valuation Unobservable Range  Estimate Techniques Input  December 31, 2017:  Impaired Loans $ 10,369 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   Other Real Estate Owned $ 532 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%       Quantitative Information about Level 3 Fair Value Measurements  Fair Value Valuation Unobservable Range  Estimate Techniques Input  December 31, 2016:  Impaired Loans $ 10,519 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   Other Real Estate Owned $ 3,525 Appraisal of collateral (1) Appraisal adjustments (2) 0% -10%   (1) Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable. (2) Appraisals may be adjusted by management for qualitative factors such as economic conditions and e stimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.
Carrying Values and Estimated Fair Values of Financial Instruments	The carrying values and estimated fair values of financial instruments were as follows at December 31, 2017 and 2016:     As of December 31, 2017   Quoted Prices in Active Significant Significant  Carrying Markets for Identical Assets Other Observable Inputs Unobservable Inputs  Value Fair Value (Level 1) (Level 2) (Level 3)   (In Thousands)  Financial assets:  Cash and cash equivalents $ 124,235 $ 124,235 $ 124,235 $ - $ -  Interest-earning time deposits 980 980 980 - -  Securities available for sale 122,589 122,589 - 122,589 -  Loans held for sale 1,295 1,295 - 1,295 -  Loans receivable, net 1,643,677 1,643,626 - - 1,643,626  FHLB of New York stock, at cost 10,211 10,211 - 10,211 -  Accrued interest receivable 6,153 6,153 - 6,153 -   Financial liabilities:  Deposits 1,569,370 1,578,382 903,155 673,227 -  Debt 185,000 182,947 - 182,947 -  Subordinated debentures 4,124 4,078 - 4,078 -  Accrued interest payable 791 791 - 791 -       As of December 31, 2016   Quoted Prices in Active Significant Significant  Carrying Markets for Identical Assets Other Observable Inputs Unobservable Inputs  Value Fair Value (Level 1) (Level 2) (Level 3)   (In Thousands)  Financial assets:  Cash and cash equivalents $ 65,038 $ 65,038 $ 65,038 $ - $ -  Interest-earning time deposits 980 980 980 - -  Securities available for sale 94,765 94,765 - 94,765 -  Loans held for sale 4,153 4,273 - 4,273 -  Loans receivable, net 1,485,159 1,515,088 - - 1,515,088  FHLB of New York stock, at cost 9,306 9,306 - 9,306 -  Accrued interest receivable 5,573 5,573 - 5,573 -   Financial liabilities:  Deposits 1,392,205 1,384,578 834,665 549,913 -  Debt 175,000 176,109 - 176,109 -  Subordinated debentures 4,124 4,150 - 4,150 -  Accrued interest payable 825 825 - 825 - 

Accumulated Other Comprehensi45

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2017
Accumulated Other Comprehensive Loss [Abstract]
Components of Accumulated Other Comprehensive Loss	  At December 31,  2017 2016  (In Thousands)   Net unrealized loss on securities available for sale $ (2,089) $ (4,383)  Tax effect 587 1,791  Net of tax amount (1,502) (2,592)   Benefit plan adjustments (2,281) (2,137)  Tax effect 641 873  Net of tax amount (1,640) (1,264)   Accumulated other comprehensive loss $ (3,142) $ (3,856)   

Parent Only Condensed Financi46

Parent Only Condensed Financial Information (Tables)	12 Months Ended
	Dec. 31, 2017
Parent Only Condensed Financial Information [Abstract]
Statements of Financial Condition	   STATEMENTS OF FINANCIAL CONDITION  Years Ended December 31,  2017 2016  (In Thousands)   Assets   Cash and due from banks $ 852 $ 865  Investment in subsidiaries 179,120 133,984  Restricted common stock 124 124  Other assets 683 517   Total assets 180,779 135,490    Liabilities and Stockholders' Equity  Liabilities  Subordinated debentures $ 4,124 $ 4,124  Other l iabilities 201 285   Total liabilities 4,325 4,409   Stockholder's Equity 176,454 131,081   Total Liabilities and Stockholders' Equity $ 180,779 $ 135,490 
Statements of Operations	   STATEMENTS OF OPERATIONS  Years Ended December 31,  2017 2016 2015  (In Thousands)   Dividends from Bank $ 7,951 $ 6,627 $ 4,957  Total Income 7,951 6,627 4,957    Interest expense, borrowed money 158 137 119  Other 212 176 190  Total Expense 370 313 309   Income before Income Tax Expense and Equity in Undistributed Earnings of Subsidiaries 7,581 6,314 4,648  Income tax benefit (126) (107) (106)   Income before Equity in Undistributed Earnings of Subsidiaries 7,707 6,421 4,754   Equity in undistributed earnings of subsidiaries 2,275 1,582 2,276   Net Income $ 9,982 $ 8,003 $ 7,030 
Statements of Cash Flows	   STATEMENTS OF CASH FLOWS  Years Ended December 31,  2017 2016 2015  (In Thousands)   Cash Flows from Operating Activities  Net Income $ 9,982 $ 8,003 $ 7,030  Adjustments to reconcile net income to net cash provided by operating activities:  Equity in undistributed (earnings) of subsidiaries (2,275) (1,582) (2,276)  Decrease (increase) in other assets (166) 1,087 153  (Decrease) increase in other liabilities (84) (35) 73   Net Cash Provided By Operating Activities 7,457 7,473 4,980    Cash Flows from Investing Activities  Additional investment in subsidiary (41,389) 1,710 (29,617)   Net Cash Used In Investing Activities $ (41,389) $ 1,710 $ (29,617)   Cash Flows from Financing Activities  Proceeds from issuance of preferred stock 9,496 - 3,848  Redemption of preferred stock (11,720) (1,710) -  Proceeds from issuance of common stock 43,314 336 25,978  Cash dividends paid (7,158) (6,952) (5,378)  Purchase of treasury stock (13) (7) -   Net Cash Provided by (Used in) Financing Activities 33,919 (8,333) 24,448   Net Increase (decrease) in Cash and Cash Equivalents (13) 850 (189)   Cash and Cash Equivalents - Beginning $ 865 $ 15 $ 204   Cash and Cash Equivalents - Ending $ 852 $ 865 $ 15  

Quarterly Financial Data (Table

Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2017
Quarterly Financial Data [Abstract]
Summary of Quarterly Financial Data	   Year Ended December 2017  First Quarter Second Quarter Third Quarter Fourth Quarter   Interest income $ 18,455 $ 19,069 $ 19,406 $ 20,641  Interest expense 3,850 4,006 3,832 3,999  Net Interest Income 14,605 15,063 15,574 16,642  Provision for loan losses 498 776 511 325  Net Interest Income, after Provision for loan losses 14,107 14,287 15,063 16,317  Non-interest income 2,313 2,022 1,633 1,515  Non-interest expense 11,562 12,148 11,299 12,034  Income before Income Taxes 4,858 4,161 5,397 5,798  Income taxes 1,945 1,648 2,180 4,458  Net Income $ 2,913 $ 2,513 $ 3,217 $ 1,340  Preferred stock dividends 118 165 166 165  Net income available to common stockholders: $ 2,795 $ 2,348 $ 3,051 1,175  Net income per common share:  Basic $ 0.25 $ 0.21 $ 0.25 $ 0.05  Diluted $ 0.25 $ 0.21 $ 0.25 $ 0.04  Dividends per common share $ 0.14 $ 0.14 $ 0.14 $ 0.14              Year Ended December 2016  First Quarter Second Quarter Third Quarter Fourth Quarter   Interest income $ 17,831 $ 17,681 $ 17,731 $ 18,112  Interest expense 4,133 4,318 4,134 3,710  Net Interest Income 13,698 13,363 13,597 14,402  Provision for loan losses 189 37 (301) 102  Net Interest Income, after Provision for loan losses 13,509 13,326 13,898 14,300  Non-interest income 1,654 1,506 1,530 1,433  Non-interest expense 11,737 12,166 12,343 11,649  Income before Income Taxes 3,426 2,666 3,085 4,084  Income taxes 1,391 1,085 1,171 1,611  Net Income $ 2,035 $ 1,581 $ 1,914 $ 2,473  Preferred stock dividends 234 234 234 234  Net income available to common stockholders: $ 1,801 $ 1,347 $ 1,680 $ 2,239  Net income per common share:  Basic $ 0.16 $ 0.12 $ 0.15 $ 0.20  Diluted $ 0.16 $ 0.12 $ 0.15 $ 0.20  Dividends per common share $ 0.14 $ 0.14 $ 0.14 $ 0.14   

Organization and Stock Offeri48

Organization and Stock Offerings (Narrative) (Details)	Sep. 12, 2017USD ($)$ / sharesshares	Nov. 27, 2015USD ($)$ / sharesshares	Oct. 31, 2013USD ($)$ / sharesshares	Mar. 31, 2017	Nov. 30, 2015USD ($)$ / sharesshares	Apr. 30, 2017USD ($)$ / sharesshares	Feb. 28, 2017USD ($)	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)itemshares	Dec. 31, 2015USD ($)	Nov. 04, 2014USD ($)
Organization And Stock Offerings Disclosure [Line Items]
Number of locations | item									22
Shares issued | shares					2,760,000
Shares issued, price per share | $ / shares					$ 10
Proceeds from issuance of common stock					$ 25,600,000			$ 43,314,000	$ 336,000	$ 25,978,000
Preferred stock, dividend rate								6.00%	6.00%	6.00%
Preferred stock, liquidation preference per share | $ / shares								$ 10,000
Preferred stock redeemed								$ 11,720,000	$ 1,710,000
Preferred stock, shares outstanding | shares								1,342	1,560
Common stock authorized, value											$ 50,000,000
Stock issuance costs					$ 2,000,000
Treasury stock, shares purchased | shares								900,000	600,000
Common Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Shares issued | shares	3,265,306
Shares issued, price per share | $ / shares	$ 12.25
Shares issued for over-allotment | shares	449,796
Proceeds from issuance of common stock	$ 42,800,000
Stock issuance costs	$ 2,800,000
Series D Preferred Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Shares issued | shares						954
Stock issuance costs						$ 42,500
Preferred stock, dividend rate				4.50%		4.50%		4.50%
Proceeds from issuance of private placement						$ 9,540,000
Preferred stock, liquidation preference per share | $ / shares						$ 10,000
Series C Preferred Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Shares issued | shares		388
Preferred stock, dividend rate		6.00%						6.00%
Proceeds from issuance of private placement		$ 3,880,000
Preferred stock, liquidation preference per share | $ / shares		$ 10,000
Stock issuance costs		$ 32,000
Series A and Series B Preferred Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Preferred stock redeemed							$ 1,172,000
Series A Preferred Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Preferred stock, dividend rate								6.00%
Preferred stock redeemed								$ 1,710,000
Redemption of preferred stock, shares | shares									141
Preferred stock, shares outstanding | shares									724
Series B Preferred Stock [Member]
Organization And Stock Offerings Disclosure [Line Items]
Shares issued | shares			478
Preferred stock, dividend rate			6.00%					6.00%
Proceeds from issuance of private placement			$ 4,780,000
Preferred stock, liquidation preference per share | $ / shares			$ 10,000
Stock issuance costs			$ 24,000

Summary of Significant Accoun49

Summary of Significant Accounting Policies (Narrative) (Details)	Dec. 22, 2017	Dec. 31, 2017USD ($)propertyshares	Dec. 31, 2016USD ($)propertyshares	Dec. 31, 2015USD ($)shares
Significant Accounting Policies Disclosure [Line Items]
Other real estate owned, number of properties | property		4	9
Other real estate owned		$ 532,000	$ 3,525,000
Anti-dilutive outstanding options | shares		799,300	418,500	260,500
Benefit plan, maximum employee contribution, percent		75.00%
Scenario, Plan [Member]
Significant Accounting Policies Disclosure [Line Items]
Federal statutory rate	21.00%
Investment in Federal Home Loan Bank Stock [Member]
Significant Accounting Policies Disclosure [Line Items]
Impairment charges		$ 0	$ 0	$ 0
Internal Revenue Service (IRS) [Member] | Tax Year 2015 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,015
Internal Revenue Service (IRS) [Member] | Tax Year 2014 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,014
State and Local Jurisdiction [Member] | Tax Year 2016 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,016
State and Local Jurisdiction [Member] | Tax Year 2015 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,015
State and Local Jurisdiction [Member] | Tax Year 2014 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,014
State and Local Jurisdiction [Member] | Tax Year 2013 [Member]
Significant Accounting Policies Disclosure [Line Items]
Tax years subject to examination		2,013

Summary of Significant Accoun50

Summary of Significant Accounting Policies (Summary of Useful Lives of Property, Plant and Equipment) (Details)	12 Months Ended
	Dec. 31, 2017
Building [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, useful life	40 years
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, estimated useful life	Shorter of useful life or term of lease
Maximum [Member] | Building improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, useful life	40 years
Maximum [Member] | Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, useful life	5 years
Minimum [Member] | Building improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, useful life	7 years
Minimum [Member] | Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, useful life	3 years

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017USD ($)item	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2000USD ($)
Related Party Transaction [Line Items]
Lease payments next twelve months	$ 2,399,000
New Bay LLC [Member]
Related Party Transaction [Line Items]
Related party percentage owned by Directors	100.00%
Related party expenses				$ 943,000
Lease term	25 years
Rent expense	$ 165,000	$ 165,000	$ 165,000
Monthly rent expense	$ 13,750	13,750	13,750
Frequency of rent adjustments	5 years
Lease payments next twelve months	$ 165,000
Director Of Bank [Member]
Related Party Transaction [Line Items]
Lease term	2 years
Rent expense	$ 20,400	20,400	20,400
Lease payments next twelve months	20,400
ACB Development LLC [Member]
Related Party Transaction [Line Items]
Rent expense	173,207	172,352	190,580
Monthly rent expense	14,508
Lease payments next twelve months	$ 174,092
Number of related parties | item	2
190 Park Avenue LLC [Member]
Related Party Transaction [Line Items]
Lease term	10 years
Rent expense	$ 92,635	33,350	$ 33,350
Monthly rent expense	6,677
Lease payments next twelve months	$ 80,122
Number of related parties | item	2
734 Ridge Realty [Member]
Related Party Transaction [Line Items]
Lease term	5 years
Rent expense	$ 88,200	$ 44,100
Monthly rent expense	7,350
Lease payments next twelve months	$ 88,200
Number of related parties | item	2

Securities Available for Sale52

Securities Available for Sale (Amortized Cost and Gross Unrealized Gains and Losses on Securities Available for Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available for sale debt and equity securities: Amortized Cost	$ 124,678	$ 99,148
Available for sale securities: Gross Unrealized Gains	283	88
Available for sale securities: Gross Unrealized Losses	2,372	4,471
Equity securities: Due after 10 years, Fair Value	122,589	94,765
Available for sale debt and equity securities: Fair Value	122,589	94,765
Mortgage-Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Due after one year through five years, Amortized Cost	3,276
Debt securities, Due after five years through ten years, Amortized Cost	622	6,230
Debt securities, Due after ten years, Amortized Cost	110,156	80,594
Debt securities, Due after one year through five years, Gross Unrealized Gains	4
Debt securities: Due after five years through ten years, Gross Unrealized Gains		23
Debt securities, Due after ten years, Gross Unrealized Gains	44	65
Debt securities: Due after one year through five years, Gross Unrealized Losses	76
Debt securities: Due after five years through ten years, Gross Unrealized Losses	10	86
Debt securities: Due after ten years, Gross Unrealized Losses	2,222	4,354
Debt securities: Due after one year through five years, Fair Value	3,204
Debt securities: Due after five years through ten years, Fair Value	612	6,167
Debt securities: Due after ten years, Fair Value	107,978	76,305
Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt securities, Due within one year, Amortized Cost	2,506	6,968
Debt securities: Due within one year, Gross Unrealized Losses	4	7
Debt securities: Due within one year, Fair Value	2,502	6,961
Available for sale debt and equity securities: Fair Value	2,502	6,961
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Equity securities, Due after 10 years, Amortized Cost	8,118	5,356
Equity securities: Due after 10 years, Gross Unrealized Gains	235
Equity securities: Due after 10 years, Gross Unrealized Losses	60	24
Equity securities: Due after 10 years, Fair Value	8,293	5,332
Available for sale debt and equity securities: Fair Value	$ 8,293	$ 5,332

Securities Available For Sale53

Securities Available For Sale (Available-for-Sale Securities, Continuous Unrealized Loss Position, Fair Value ) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months - Fair Value	$ 100,880	$ 83,616
More than 12 Months - Fair Value	12,309	3,379
Total - Fair Value	113,189	86,995
Less than 12 Months - Unrealized Losses	2,015	4,344
More than 12 Months - Unrealized Losses	357	127
Total - Unrealized Losses	2,372	4,471
Residential mortgage-backed securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months - Fair Value	94,909	74,672
More than 12 Months - Fair Value	12,309	3,379
Total - Fair Value	107,218	78,051
Less than 12 Months - Unrealized Losses	1,951	4,313
More than 12 Months - Unrealized Losses	357	127
Total - Unrealized Losses	2,308	4,440
Municipal Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months - Fair Value	2,502	6,961
Total - Fair Value	2,502	6,961
Less than 12 Months - Unrealized Losses	4	7
Total - Unrealized Losses	4	7
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months - Fair Value	3,469	1,983
Total - Fair Value	3,469	1,983
Less than 12 Months - Unrealized Losses	60	24
Total - Unrealized Losses	$ 60	$ 24

Loans Receivable and Allowanc54

Loans Receivable and Allowance for Loan Losses (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest on nonaccrual loans	$ 622,000	$ 798,000	$ 326,000
Loans Receivable >90 Days and Accruing	315,000	2,828,000
Participation interest in loans originated	256,900,000	184,100,000
Non-accrual loans, interest income lsot	919,000,000,000	$ 1,060,000	$ 1,130,000
Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables	49,000
Loss [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables	49,000
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables	21,700,000
Substandard [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing receivables	$ 21,700,000

Loans Receivable and Allowanc55

Loans Receivable and Allowance for Loan Losses (Recorded Investments in Loans Receivable) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		$ 1,662,809	$ 1,504,374	$ 1,440,614
Deferred loan fees, net		(1,757)	(2,006)
Allowance for loan losses		(17,375)	(17,209)
Total deductions from gross loans		(19,132)	(19,215)
Net Loans		1,643,677	1,485,159
Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		231,765	199,834	186,226
Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,260,730	1,117,981	1,062,805
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		50,497	70,867	64,008
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	70,832	67,904	74,788
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	47,680	46,294	50,159
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,305	1,494	2,628
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,553,114	1,366,884	1,267,943
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		182,544	142,081	117,165
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,213,390	1,056,806	982,828
Originated Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		50,497	70,867	64,008
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	66,775	63,444	70,340
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	38,725	32,417	31,237
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,183	1,269	2,365
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		107,551	135,294	170,290
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		47,808	56,310	67,587
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		46,609	60,422	79,308
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	4,057	4,460	4,281
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	8,955	13,877	18,851
Acquired Loans Recorded At Fair Value [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		122	225	263
Acquired Loans With Deteriorated Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,144	2,196	2,381
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,413	1,443	1,474
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		$ 731	$ 753	669
Acquired Loans With Deteriorated Credit [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]			167
Acquired Loans With Deteriorated Credit [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]			$ 71
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc56

Loans Receivable and Allowance for Loan Losses (Acquired Loans Included In Loans Receivable in Consolidated Statements of Financial Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Loans Receivable and Allowance for Loan Losses [Abstract]
Unpaid principle balance	$ 114,542	$ 140,049
Recorded investment	$ 109,695	$ 137,490

Loans Receivable and Allowanc57

Loans Receivable and Allowance for Loan Losses (Accretable And Non-Accretable Discount on Loans Acquired) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans Receivable and Allowance for Loan Losses [Abstract]
Accretable discount, Beginning of Period	$ 39,119	$ 53,612
Accretable discount, Accretion	(10,983)	(14,976)
Accretable discount, Net Reclassification from Non-Accretable Yield	328	483
Accretable discount, End of Period	28,464	39,119
Non-accretable yield, Beginning of Period	2,558	3,041
Non-accretable yield, Net Reclassification to Accretable Difference	(328)	(483)
Non-accretable yield, End of Period	$ 2,230	$ 2,558

Loans Receivable and Allowanc58

Loans Receivable and Allowance for Loan Losses (Related Party Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Loans Receivable and Allowance for Loan Losses [Abstract]
Balance - beginning	$ 8,552	$ 12,444
Loans originated		386
Collections of principal	(1,075)	(1,461)
Changes in related party status	13,624	(2,817)
Balance - ending	$ 21,101	$ 8,552

Loans Receivable and Allowanc59

Loans Receivable and Allowance for Loan Losses (Allowance for Loan Losses) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					$ 17,209				$ 18,042	$ 17,209	$ 18,042	$ 16,151
Allowance for loan losses: Charge-offs										2,144	1,081	462
Allowance for loan losses: Recoveries										200	221	73
Allowance for loan losses: Provisions		$ 325	$ 511	$ 776	498	$ 102	$ (301)	$ 37	189	2,110	27	2,280
Allowance for loan losses: Ending Balance		17,375				17,209				17,375	17,209	18,042
Loans receivables: Ending balance		1,662,809				1,504,374				1,662,809	1,504,374	1,440,614
Loans receivables: Ending balance: individually evaluated for impairment		37,786				45,419				37,786	45,419	51,084
Loans receivables: Ending balance: collectively evaluated for impairment		1,625,023				1,458,955				1,625,023	1,458,955	1,389,530
Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					2,311				2,424	2,311	2,424	2,845
Allowance for loan losses: Charge-offs										336	459	67
Allowance for loan losses: Provisions										675	346	(354)
Allowance for loan losses: Ending Balance		2,650				2,311				2,650	2,311	2,424
Loans receivables: Ending balance		231,765				199,834				231,765	199,834	186,226
Loans receivables: Ending balance: individually evaluated for impairment		16,905				19,694				16,905	19,694	20,479
Loans receivables: Ending balance: collectively evaluated for impairment		214,860				180,140				214,860	180,140	165,747
Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					10,634				11,674	10,634	11,674	10,153
Allowance for loan losses: Charge-offs										190	405	10
Allowance for loan losses: Recoveries										182	78	70
Allowance for loan losses: Provisions										1,042	(713)	1,461
Allowance for loan losses: Ending Balance		11,668				10,634				11,668	10,634	11,674
Loans receivables: Ending balance		1,260,730				1,117,981				1,260,730	1,117,981	1,062,805
Loans receivables: Ending balance: individually evaluated for impairment		17,757				19,204				17,757	19,204	21,882
Loans receivables: Ending balance: collectively evaluated for impairment		1,242,973				1,098,777				1,242,973	1,098,777	1,040,923
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					736				722	736	722	1,080
Allowance for loan losses: Provisions										(218)	14	(358)
Allowance for loan losses: Ending Balance		518				736				518	736	722
Loans receivables: Ending balance		50,497				70,867				50,497	70,867	64,008
Loans receivables: Ending balance: individually evaluated for impairment						6					6
Loans receivables: Ending balance: collectively evaluated for impairment		50,497				70,861				50,497	70,861	64,008
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[1]				3,079				1,753	3,079	1,753	1,109
Allowance for loan losses: Charge-offs	[1]									1,553	163	279
Allowance for loan losses: Recoveries	[1]									18	129
Allowance for loan losses: Provisions	[1]									474	1,360	923
Allowance for loan losses: Ending Balance	[1]	2,018				3,079				2,018	3,079	1,753
Loans receivables: Ending balance	[1]	70,832				67,904				70,832	67,904	74,788
Loans receivables: Ending balance: individually evaluated for impairment	[1]	1,780				4,088				1,780	4,088	4,370
Loans receivables: Ending balance: collectively evaluated for impairment	[1]	69,052				63,816				69,052	63,816	70,418
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[2]				378				422	378	422	394
Allowance for loan losses: Charge-offs	[2]									54	54	106
Allowance for loan losses: Recoveries	[2]										14	3
Allowance for loan losses: Provisions	[2]									14	(4)	131
Allowance for loan losses: Ending Balance	[2]	338				378				338	378	422
Loans receivables: Ending balance	[2]	47,680				46,294				47,680	46,294	50,159
Loans receivables: Ending balance: individually evaluated for impairment	[2]	1,344				2,427				1,344	2,427	2,890
Loans receivables: Ending balance: collectively evaluated for impairment	[2]	46,336				43,867				46,336	43,867	47,269
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					2				879	2	879	449
Allowance for loan losses: Charge-offs										11
Allowance for loan losses: Provisions										15	(877)	430
Allowance for loan losses: Ending Balance		6				2				6	2	879
Loans receivables: Ending balance		1,305				1,494				1,305	1,494	2,628
Loans receivables: Ending balance: individually evaluated for impairment												1,463
Loans receivables: Ending balance: collectively evaluated for impairment		1,305				1,494				1,305	1,494	1,165
Unallocated [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					69				168	69	168	121
Allowance for loan losses: Provisions										108	(99)	47
Allowance for loan losses: Ending Balance		177				69				177	69	168
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					16,979				17,637	16,979	17,637	15,251
Allowance for loan losses: Charge-offs										1,754	527	90
Allowance for loan losses: Recoveries										182	74	70
Allowance for loan losses: Provisions										1,674	(205)	2,406
Allowance for loan losses: Ending Balance		17,081				16,979				17,081	16,979	17,637
Loans receivables: Ending balance		1,553,114				1,366,884				1,553,114	1,366,884	1,267,943
Loans receivables: Ending balance: individually evaluated for impairment		22,978				28,432				22,978	28,432	30,923
Loans receivables: Ending balance: collectively evaluated for impairment		1,530,136				1,338,452				1,530,136	1,338,452	1,237,020
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					2,098				2,107	2,098	2,107	2,364
Allowance for loan losses: Provisions										270	(9)	(257)
Allowance for loan losses: Ending Balance		2,368				2,098				2,368	2,098	2,107
Loans receivables: Ending balance		182,544				142,081				182,544	142,081	117,165
Loans receivables: Ending balance: individually evaluated for impairment		7,944				10,651				7,944	10,651	9,120
Loans receivables: Ending balance: collectively evaluated for impairment		174,600				131,430				174,600	131,430	108,045
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					10,621				11,643	10,621	11,643	10,028
Allowance for loan losses: Charge-offs										190	367	10
Allowance for loan losses: Recoveries										182	74	70
Allowance for loan losses: Provisions										1,043	(729)	1,555
Allowance for loan losses: Ending Balance		11,656				10,621				11,656	10,621	11,643
Loans receivables: Ending balance		1,213,390				1,056,806				1,213,390	1,056,806	982,828
Loans receivables: Ending balance: individually evaluated for impairment		12,212				12,325				12,212	12,325	14,681
Loans receivables: Ending balance: collectively evaluated for impairment		1,201,178				1,044,481				1,201,178	1,044,481	968,147
Originated Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					736				722	736	722	1,080
Allowance for loan losses: Provisions										(218)	14	(358)
Allowance for loan losses: Ending Balance		518				736				518	736	722
Loans receivables: Ending balance		50,497				70,867				50,497	70,867	64,008
Loans receivables: Ending balance: individually evaluated for impairment						6					6
Loans receivables: Ending balance: collectively evaluated for impairment		50,497				70,861				50,497	70,861	64,008
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[1]				3,079				1,749	3,079	1,749	876
Allowance for loan losses: Charge-offs	[1]									1,553	160	80
Allowance for loan losses: Provisions	[1]									492	1,490	953
Allowance for loan losses: Ending Balance	[1]	2,018				3,079				2,018	3,079	1,749
Loans receivables: Ending balance	[1]	66,775				63,444				66,775	63,444	70,340
Loans receivables: Ending balance: individually evaluated for impairment	[1]	1,780				4,088				1,780	4,088	4,203
Loans receivables: Ending balance: collectively evaluated for impairment	[1]	64,995				59,356				64,995	59,356	66,137
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[2]				374				369	374	369	333
Allowance for loan losses: Provisions	[2]									(36)	5	36
Allowance for loan losses: Ending Balance	[2]	338				374				338	374	369
Loans receivables: Ending balance	[2]	38,725				32,417				38,725	32,417	31,237
Loans receivables: Ending balance: individually evaluated for impairment	[2]	1,042				1,362				1,042	1,362	1,456
Loans receivables: Ending balance: collectively evaluated for impairment	[2]	37,683				31,055				37,683	31,055	29,781
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					2				879	2	879	449
Allowance for loan losses: Charge-offs										11
Allowance for loan losses: Provisions										15	(877)	430
Allowance for loan losses: Ending Balance		6				2				6	2	879
Loans receivables: Ending balance		1,183				1,269				1,183	1,269	2,365
Loans receivables: Ending balance: individually evaluated for impairment												1,463
Loans receivables: Ending balance: collectively evaluated for impairment		1,183				1,269				1,183	1,269	902
Originated Loans [Member] | Unallocated [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					69				168	69	168	121
Allowance for loan losses: Provisions										108	(99)	47
Allowance for loan losses: Ending Balance		177				69				177	69	168
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					174				337	174	337	577
Allowance for loan losses: Charge-offs										390	554	173
Allowance for loan losses: Recoveries											18	3
Allowance for loan losses: Provisions										458	373	(70)
Allowance for loan losses: Ending Balance		242				174				242	174	337
Loans receivables: Ending balance		107,551				135,294				107,551	135,294	170,290
Loans receivables: Ending balance: individually evaluated for impairment		12,882				15,021				12,882	15,021	18,023
Loans receivables: Ending balance: collectively evaluated for impairment		94,669				120,273				94,669	120,273	152,267
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					170				270	170	270	417
Allowance for loan losses: Charge-offs										336	459	67
Allowance for loan losses: Provisions										408	359	(80)
Allowance for loan losses: Ending Balance		242				170				242	170	270
Loans receivables: Ending balance		47,808				56,310				47,808	56,310	67,587
Loans receivables: Ending balance: individually evaluated for impairment		7,548				7,600				7,548	7,600	9,885
Loans receivables: Ending balance: collectively evaluated for impairment		40,260				48,710				40,260	48,710	57,702
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance									17		17	102
Allowance for loan losses: Charge-offs											38
Allowance for loan losses: Recoveries											4
Allowance for loan losses: Provisions											17	(85)
Allowance for loan losses: Ending Balance												17
Loans receivables: Ending balance		46,609				60,422				46,609	60,422	79,308
Loans receivables: Ending balance: individually evaluated for impairment		5,032				6,356				5,032	6,356	6,775
Loans receivables: Ending balance: collectively evaluated for impairment		41,577				54,066				41,577	54,066	72,533
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Charge-offs	[1]										3
Allowance for loan losses: Provisions	[1]										3
Loans receivables: Ending balance	[1]	4,057				4,460				4,057	4,460	4,281
Loans receivables: Ending balance: collectively evaluated for impairment	[1]	4,057				4,460				4,057	4,460	4,281
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[2]				4				50	4	50	58
Allowance for loan losses: Charge-offs	[2]									54	54	106
Allowance for loan losses: Recoveries	[2]										14	3
Allowance for loan losses: Provisions	[2]									50	(6)	95
Allowance for loan losses: Ending Balance	[2]					4					4	50
Loans receivables: Ending balance	[2]	8,955				13,877				8,955	13,877	18,851
Loans receivables: Ending balance: individually evaluated for impairment	[2]	302				1,065				302	1,065	1,363
Loans receivables: Ending balance: collectively evaluated for impairment	[2]	8,653				12,812				8,653	12,812	17,488
Acquired Loans Recorded At Fair Value [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivables: Ending balance		122				225				122	225	263
Loans receivables: Ending balance: collectively evaluated for impairment		122				225				122	225	263
Acquired Loans With Deteriorated Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					56				68	56	68	323
Allowance for loan losses: Charge-offs												199
Allowance for loan losses: Recoveries										18	129
Allowance for loan losses: Provisions										(22)	(141)	(56)
Allowance for loan losses: Ending Balance		52				56				52	56	68
Loans receivables: Ending balance		2,144				2,196				2,144	2,196	2,381
Loans receivables: Ending balance: individually evaluated for impairment		1,926				1,966				1,926	1,966	2,138
Loans receivables: Ending balance: collectively evaluated for impairment		218				230				218	230	243
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					43				47	43	47	64
Allowance for loan losses: Provisions										(3)	(4)	(17)
Allowance for loan losses: Ending Balance		40				43				40	43	47
Loans receivables: Ending balance		1,413				1,443				1,413	1,443	1,474
Loans receivables: Ending balance: individually evaluated for impairment		1,413				1,443				1,413	1,443	1,474
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance					$ 13				14	13	14	23
Allowance for loan losses: Provisions										(1)	(1)	(9)
Allowance for loan losses: Ending Balance		12				13				12	13	14
Loans receivables: Ending balance		731				753				731	753	669
Loans receivables: Ending balance: individually evaluated for impairment		513				523				513	523	426
Loans receivables: Ending balance: collectively evaluated for impairment		$ 218				$ 230				218	230	243
Acquired Loans With Deteriorated Credit [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[1]								4		4	233
Allowance for loan losses: Charge-offs	[1]											199
Allowance for loan losses: Recoveries	[1]									18	129
Allowance for loan losses: Provisions	[1]									$ (18)	(133)	(30)
Allowance for loan losses: Ending Balance	[1]											4
Loans receivables: Ending balance	[1]											167
Loans receivables: Ending balance: individually evaluated for impairment	[1]											167
Acquired Loans With Deteriorated Credit [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses: Beginning Balance	[2]								$ 3		3	3
Allowance for loan losses: Provisions	[2]										$ (3)
Allowance for loan losses: Ending Balance	[2]											3
Loans receivables: Ending balance	[2]											71
Loans receivables: Ending balance: individually evaluated for impairment	[2]											$ 71
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc60

Loans Receivable and Allowance for Loan Losses (Non-Accruing Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		$ 13,036	$ 15,652
Loans Receivable >90 Days and Accruing		315	2,828
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		9,807	10,278
Loans Receivable >90 Days and Accruing			2,828
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		2,545	3,693
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		6,762	5,437
Loans Receivable >90 Days and Accruing			2,828
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	[1]	299	726
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	[2]	201	416
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans			6
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		3,229	5,374
Loans Receivable >90 Days and Accruing		315
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		2,372	3,429
Loans Receivable >90 Days and Accruing		315
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans		850	1,182
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Non-accrual loans	[2]	$ 7	$ 763
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc61

Loans Receivable and Allowance for Loan Losses (Impaired Loans) (Details) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		$ 27,677,000	$ 31,734,000
Average Recorded Investment - With an allowance recorded		14,310,000	17,136,000
Interest Income Recognized - With no related allowance recorded		833,000	1,851,000
Interest Income Recognized - With an allowance recorded		462,000	577,000
Recorded Investment - With no related allowance recorded		25,384,000	31,369,000
Recorded Investment - With an allowance recorded		12,402,000	14,050,000
Recorded Investment - Total		37,786,000	45,419,000
Unpaid Principal Balance - With no related allowance recorded		27,733,000	34,266,000
Unpaid Principal Balance - With an allowance recorded		13,438,000	15,137,000
Unpaid Principal Balance - Total		41,171,000	49,403,000
Related Allowance		2,033,000	3,530,000
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		16,529,000	18,861,000
Average Recorded Investment - With an allowance recorded		9,624,000	12,002,000
Interest Income Recognized - With no related allowance recorded		348,000	1,020,000
Interest Income Recognized - With an allowance recorded		300,000	447,000
Recorded Investment - With no related allowance recorded		15,351,000	17,706,000
Recorded Investment - With an allowance recorded		7,627,000	10,726,000
Unpaid Principal Balance - With no related allowance recorded		16,839,000	19,136,000
Unpaid Principal Balance - With an allowance recorded		8,459,000	11,705,000
Related Allowance		1,566,000	3,267,000
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		2,859,000	4,613,000
Average Recorded Investment - With an allowance recorded		6,024,000	5,564,000
Interest Income Recognized - With no related allowance recorded		39,000	281,000
Interest Income Recognized - With an allowance recorded		213,000	253,000
Recorded Investment - With no related allowance recorded		2,073,000	5,158,000
Recorded Investment - With an allowance recorded		5,871,000	5,493,000
Unpaid Principal Balance - With no related allowance recorded		2,236,000	5,341,000
Unpaid Principal Balance - With an allowance recorded		5,871,000	5,493,000
Related Allowance		508,000	496,000
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		12,351,000	10,820,000
Average Recorded Investment - With an allowance recorded		421,000	3,122,000
Interest Income Recognized - With no related allowance recorded		271,000	563,000
Interest Income Recognized - With an allowance recorded			39,000
Recorded Investment - With no related allowance recorded		12,212,000	10,498,000
Recorded Investment - With an allowance recorded			1,827,000
Unpaid Principal Balance - With no related allowance recorded		12,763,000	10,722,000
Unpaid Principal Balance - With an allowance recorded			1,866,000
Related Allowance			380,000
Originated Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded			746,000
Recorded Investment - With no related allowance recorded			6,000
Unpaid Principal Balance - With no related allowance recorded			6,000
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded	[1]	441,000	1,678,000
Average Recorded Investment - With an allowance recorded	[1]	2,958,000	2,406,000
Interest Income Recognized - With no related allowance recorded	[1]		116,000
Interest Income Recognized - With an allowance recorded	[1]	81,000	139,000
Recorded Investment - With no related allowance recorded	[1]	181,000	1,022,000
Recorded Investment - With an allowance recorded	[1]	1,599,000	3,066,000
Unpaid Principal Balance - With no related allowance recorded	[1]	908,000	1,966,000
Unpaid Principal Balance - With an allowance recorded	[1]	2,431,000	4,006,000
Related Allowance	[1]	1,033,000	2,359,000
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded	[2]	878,000	1,002,000
Average Recorded Investment - With an allowance recorded	[2]	221,000	278,000
Interest Income Recognized - With no related allowance recorded	[2]	38,000	60,000
Interest Income Recognized - With an allowance recorded	[2]	6,000	16,000
Recorded Investment - With no related allowance recorded	[2]	885,000	1,022,000
Recorded Investment - With an allowance recorded	[2]	157,000	340,000
Unpaid Principal Balance - With no related allowance recorded	[2]	932,000	1,101,000
Unpaid Principal Balance - With an allowance recorded	[2]	157,000	340,000
Related Allowance	[2]	25,000	32,000
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded			2,000
Average Recorded Investment - With an allowance recorded			632,000
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		9,208,000	10,872,000
Average Recorded Investment - With an allowance recorded		4,686,000	5,093,000
Interest Income Recognized - With no related allowance recorded		371,000	714,000
Interest Income Recognized - With an allowance recorded		162,000	130,000
Recorded Investment - With no related allowance recorded		8,107,000	11,697,000
Recorded Investment - With an allowance recorded		4,775,000	3,324,000
Unpaid Principal Balance - With no related allowance recorded		8,326,000	12,509,000
Unpaid Principal Balance - With an allowance recorded		4,979,000	3,432,000
Related Allowance		467,000	263,000
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		4,758,000	5,234,000
Average Recorded Investment - With an allowance recorded		2,989,000	3,342,000
Interest Income Recognized - With no related allowance recorded		138,000	345,000
Interest Income Recognized - With an allowance recorded		118,000	69,000
Recorded Investment - With no related allowance recorded		4,119,000	5,577,000
Recorded Investment - With an allowance recorded		3,429,000	2,023,000
Unpaid Principal Balance - With no related allowance recorded		4,285,000	6,149,000
Unpaid Principal Balance - With an allowance recorded		3,580,000	2,080,000
Related Allowance		281,000	202,000
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		3,996,000	5,055,000
Average Recorded Investment - With an allowance recorded		1,601,000	1,077,000
Interest Income Recognized - With no related allowance recorded		220,000	332,000
Interest Income Recognized - With an allowance recorded		38,000	44,000
Recorded Investment - With no related allowance recorded		3,772,000	5,575,000
Recorded Investment - With an allowance recorded		1,260,000	781,000
Unpaid Principal Balance - With no related allowance recorded		3,773,000	5,710,000
Unpaid Principal Balance - With an allowance recorded		1,313,000	781,000
Related Allowance		179,000	37,000
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded	[2]	454,000	583,000
Average Recorded Investment - With an allowance recorded	[2]	96,000	674,000
Interest Income Recognized - With no related allowance recorded	[2]	13,000	37,000
Interest Income Recognized - With an allowance recorded	[2]	6,000	17,000
Recorded Investment - With no related allowance recorded	[2]	216,000	545,000
Recorded Investment - With an allowance recorded	[2]	86,000	520,000
Unpaid Principal Balance - With no related allowance recorded	[2]	268,000	650,000
Unpaid Principal Balance - With an allowance recorded	[2]	86,000	571,000
Related Allowance	[2]	7,000	24,000
Acquired Loans With Deteriorated Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		1,940,000	2,001,000
Average Recorded Investment - With an allowance recorded			41,000
Interest Income Recognized - With no related allowance recorded		114,000	117,000
Recorded Investment - With no related allowance recorded		1,926,000	1,966,000
Unpaid Principal Balance - With no related allowance recorded		2,568,000	2,621,000
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		1,423,000	1,455,000
Interest Income Recognized - With no related allowance recorded		87,000	89,000
Recorded Investment - With no related allowance recorded		1,413,000	1,443,000
Unpaid Principal Balance - With no related allowance recorded		2,031,000	2,069,000
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded		517,000	527,000
Interest Income Recognized - With no related allowance recorded		27,000	28,000
Recorded Investment - With no related allowance recorded		513,000	523,000
Unpaid Principal Balance - With no related allowance recorded		$ 537,000	552,000
Acquired Loans With Deteriorated Credit [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With an allowance recorded	[1]		41,000
Acquired Loans With Deteriorated Credit [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average Recorded Investment - With no related allowance recorded	[2]		$ 19,000
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc62

Loans Receivable and Allowance for Loan Losses (Troubled Debt Restructurings) (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2017USD ($)loan	Dec. 31, 2016USD ($)loan
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		10	10
Amount		$ 28,466	$ 27,568
Number of Contracts | loan		77	80
Pre-Modification Outstanding Recorded Investments		$ 6,938	$ 2,543
Post-Modification Outstanding Recorded Investments		$ 7,430	$ 3,833
Number of Contracts, Subsequent Default | loan		5	3
Recorded Investment, Subsequent Default		$ 4,085	$ 707
Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 20,058	$ 22,185
Number of Contracts | loan		59	63
Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 8,408	$ 5,383
Number of Contracts | loan		18	17
Originated Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		5	8
Amount		$ 14,998	$ 13,201
Number of Contracts | loan		32	34
Pre-Modification Outstanding Recorded Investments		$ 5,886	$ 2,042
Post-Modification Outstanding Recorded Investments		$ 6,164	$ 3,290
Number of Contracts, Subsequent Default | loan		3	3
Recorded Investment, Subsequent Default		$ 3,697	$ 707
Originated Loans [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 8,395	$ 10,513
Number of Contracts | loan		19	24
Originated Loans [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 6,603	$ 2,688
Number of Contracts | loan		13	10
Originated Loans [Member] | Residential One-to-Four Family [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		2	1
Amount		$ 3,438	$ 2,687
Number of Contracts | loan		7	8
Pre-Modification Outstanding Recorded Investments		$ 1,445	$ 71
Post-Modification Outstanding Recorded Investments		$ 1,556	$ 71
Number of Contracts, Subsequent Default | loan		1	1
Recorded Investment, Subsequent Default		$ 297	$ 70
Originated Loans [Member] | Residential One-to-Four Family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 2,352	$ 2,687
Number of Contracts | loan		5	8
Originated Loans [Member] | Residential One-to-Four Family [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 1,086
Number of Contracts | loan		2
Originated Loans [Member] | Commercial And Multi-family [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		3	5
Amount		$ 10,262	$ 7,438
Number of Contracts | loan		16	17
Pre-Modification Outstanding Recorded Investments		$ 4,441	$ 1,816
Post-Modification Outstanding Recorded Investments		$ 4,608	$ 1,920
Number of Contracts, Subsequent Default | loan		2	2
Recorded Investment, Subsequent Default		$ 3,400	$ 637
Originated Loans [Member] | Commercial And Multi-family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 4,846	$ 5,141
Number of Contracts | loan		8	9
Originated Loans [Member] | Commercial And Multi-family [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 5,416	$ 2,297
Number of Contracts | loan		8	8
Originated Loans [Member] | Commercial Business [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	[1]		1
Amount	[1]	$ 468	$ 2,213
Number of Contracts | loan	[1]	3	3
Post-Modification Outstanding Recorded Investments	[1]		$ 1,137
Originated Loans [Member] | Commercial Business [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[1]	$ 411	$ 1,868
Number of Contracts | loan	[1]	1	2
Originated Loans [Member] | Commercial Business [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[1]	$ 57	$ 345
Number of Contracts | loan	[1]	2	1
Originated Loans [Member] | Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	[2]		1
Amount	[2]	$ 830	$ 863
Number of Contracts | loan	[2]	6	6
Pre-Modification Outstanding Recorded Investments	[2]		$ 155
Post-Modification Outstanding Recorded Investments	[2]		162
Originated Loans [Member] | Home Equity [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[2]	$ 786	$ 817
Number of Contracts | loan	[2]	5	5
Originated Loans [Member] | Home Equity [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[2]	$ 44	$ 46
Number of Contracts | loan	[2]	1	1
Acquired Loans Recorded At Fair Value [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		5	2
Amount		$ 10,899	$ 11,746
Number of Contracts | loan		39	40
Pre-Modification Outstanding Recorded Investments		$ 1,052	$ 501
Post-Modification Outstanding Recorded Investments		$ 1,266	543
Number of Contracts, Subsequent Default | loan		2
Recorded Investment, Subsequent Default		$ 388
Acquired Loans Recorded At Fair Value [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 9,094	$ 9,051
Number of Contracts | loan		34	33
Acquired Loans Recorded At Fair Value [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 1,805	$ 2,695
Number of Contracts | loan		5	7
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan		5	1
Amount		$ 6,207	$ 5,872
Number of Contracts | loan		25	23
Pre-Modification Outstanding Recorded Investments		$ 1,052	$ 278
Post-Modification Outstanding Recorded Investments		$ 1,266	320
Number of Contracts, Subsequent Default | loan		2
Recorded Investment, Subsequent Default		$ 388
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 4,992	$ 3,979
Number of Contracts | loan		21	18
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 1,215	$ 1,893
Number of Contracts | loan		4	5
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 4,430	$ 5,390
Number of Contracts | loan		12	14
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 3,840	$ 4,807
Number of Contracts | loan		11	13
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 590	$ 583
Number of Contracts | loan		1	1
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans | loan	[2]		1
Amount	[2]	$ 262	$ 484
Number of Contracts | loan	[2]	2	3
Pre-Modification Outstanding Recorded Investments	[2]		$ 223
Post-Modification Outstanding Recorded Investments	[2]		223
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[2]	$ 262	$ 265
Number of Contracts | loan	[2]	2	2
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Non-accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount	[2]		$ 219
Number of Contracts | loan	[2]		1
Acquired Loans With Deteriorated Credit [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 2,569	$ 2,621
Number of Contracts | loan		6	6
Acquired Loans With Deteriorated Credit [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 2,569	$ 2,621
Number of Contracts | loan		6	6
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 2,031	$ 2,069
Number of Contracts | loan		5	5
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 2,031	$ 2,069
Number of Contracts | loan		5	5
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 538	$ 552
Number of Contracts | loan		1	1
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member] | Accrual [Member]
Financing Receivable, Modifications [Line Items]
Amount		$ 538	$ 552
Number of Contracts | loan		1	1
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc63

Loans Receivable and Allowance for Loan Losses (Delinquency Status of Total Loans) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		$ 39,316	$ 31,681
Current		1,623,493	1,472,693
Total Loans Receivable		1,662,809	1,504,374
30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		30,252	17,027
60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		4,049	3,107
Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		5,015	11,547
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		33,504	23,893
Current		1,519,610	1,342,991
Total Loans Receivable		1,553,114	1,366,884
Originated Loans [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		27,738	14,262
Originated Loans [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		3,346	2,239
Originated Loans [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,420	7,392
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		5,235	5,725
Current		177,309	136,356
Total Loans Receivable		182,544	142,081
Originated Loans [Member] | Residential One-to-Four Family [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,358	2,873
Originated Loans [Member] | Residential One-to-Four Family [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,604	963
Originated Loans [Member] | Residential One-to-Four Family [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,273	1,889
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		21,097	16,643
Current		1,192,293	1,040,163
Total Loans Receivable		1,213,390	1,056,806
Originated Loans [Member] | Commercial And Multi-family [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		20,210	10,472
Originated Loans [Member] | Commercial And Multi-family [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		887	989
Originated Loans [Member] | Commercial And Multi-family [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			5,182
Originated Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		5,687	348
Current		44,810	70,519
Total Loans Receivable		50,497	70,867
Originated Loans [Member] | Construction [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		5,687	348
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	904	875
Current	[1]	65,871	62,569
Total Loans Receivable	[1]	66,775	63,444
Originated Loans [Member] | Commercial Business [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	161	491
Originated Loans [Member] | Commercial Business [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	640	69
Originated Loans [Member] | Commercial Business [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	103	315
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	573	296
Current	[2]	38,152	32,121
Total Loans Receivable	[2]	38,725	32,417
Originated Loans [Member] | Home Equity [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	314	78
Originated Loans [Member] | Home Equity [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	215	218
Originated Loans [Member] | Home Equity [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	44
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		8	6
Current		1,175	1,263
Total Loans Receivable		1,183	1,269
Originated Loans [Member] | Consumer [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		8
Originated Loans [Member] | Consumer [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			6
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		5,812	7,788
Current		101,739	127,506
Total Loans Receivable		107,551	135,294
Acquired Loans Recorded At Fair Value [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,514	2,765
Acquired Loans Recorded At Fair Value [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		703	868
Acquired Loans Recorded At Fair Value [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,595	4,155
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,760	4,151
Current		45,048	52,159
Total Loans Receivable		47,808	56,310
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		643	498
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		379	515
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,738	3,138
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		2,389	2,916
Current		44,220	57,506
Total Loans Receivable		46,609	60,422
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		1,539	1,958
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due			221
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due		850	737
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	92
Current	[1]	3,965	4,460
Total Loans Receivable	[1]	4,057	4,460
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[1]	92
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	571	721
Current	[2]	8,384	13,156
Total Loans Receivable	[2]	8,955	13,877
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | 30 to 59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	240	309
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | 60 to 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	324	132
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Greater than 90 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past Due	[2]	7	280
Acquired Loans Recorded At Fair Value [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		122	225
Total Loans Receivable		122	225
Acquired Loans With Deteriorated Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		2,144	2,196
Total Loans Receivable		2,144	2,196
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		1,413	1,443
Total Loans Receivable		1,413	1,443
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current		731	753
Total Loans Receivable		$ 731	$ 753
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Loans Receivable and Allowanc64

Loans Receivable and Allowance for Loan Losses (Loan Portfolio By Pass Rating) (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		$ 1,662,809	$ 1,504,374	$ 1,440,614
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,629,038	1,456,143
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		12,041	18,907
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		21,681	29,004
Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		49	320
Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		231,765	199,834	186,226
Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,260,730	1,117,981	1,062,805
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		50,497	70,867	64,008
Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	70,832	67,904	74,788
Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	47,680	46,294	50,159
Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,305	1,494	2,628
Originated Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,553,114	1,366,884	1,267,943
Originated Loans [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,527,551	1,331,585
Originated Loans [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		10,054	15,751
Originated Loans [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		15,467	19,247
Originated Loans [Member] | Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		42	301
Originated Loans [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		182,544	142,081	117,165
Originated Loans [Member] | Residential One-to-Four Family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		174,985	131,807
Originated Loans [Member] | Residential One-to-Four Family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		5,014	6,393
Originated Loans [Member] | Residential One-to-Four Family [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,545	3,881
Originated Loans [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,213,390	1,056,806	982,828
Originated Loans [Member] | Commercial And Multi-family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,199,786	1,039,519
Originated Loans [Member] | Commercial And Multi-family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,676	6,263
Originated Loans [Member] | Commercial And Multi-family [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		10,928	10,811
Originated Loans [Member] | Commercial And Multi-family [Member] | Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross			213
Originated Loans [Member] | Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		50,497	70,867	64,008
Originated Loans [Member] | Construction [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		50,262	70,391
Originated Loans [Member] | Construction [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		235	476
Originated Loans [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	66,775	63,444	70,340
Originated Loans [Member] | Commercial Business [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	63,323	57,567
Originated Loans [Member] | Commercial Business [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	1,672	1,789
Originated Loans [Member] | Commercial Business [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	1,738	4,000
Originated Loans [Member] | Commercial Business [Member] | Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	42	88
Originated Loans [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	38,725	32,417	31,237
Originated Loans [Member] | Home Equity [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	38,018	31,052
Originated Loans [Member] | Home Equity [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	451	816
Originated Loans [Member] | Home Equity [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	256	549
Originated Loans [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,183	1,269	2,365
Originated Loans [Member] | Consumer [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,177	1,249
Originated Loans [Member] | Consumer [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		6	14
Originated Loans [Member] | Consumer [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross			6
Acquired Loans Recorded At Fair Value [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		107,551	135,294	170,290
Acquired Loans Recorded At Fair Value [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		101,116	124,181
Acquired Loans Recorded At Fair Value [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		903	2,361
Acquired Loans Recorded At Fair Value [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		5,525	8,733
Acquired Loans Recorded At Fair Value [Member] | Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		7	19
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		47,808	56,310	67,587
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		44,472	51,628
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		481	626
Acquired Loans Recorded At Fair Value [Member] | Residential One-to-Four Family [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,855	4,056
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		46,609	60,422	79,308
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		43,569	55,216
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		402	1,311
Acquired Loans Recorded At Fair Value [Member] | Commercial And Multi-family [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,638	3,895
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	4,057	4,460	4,281
Acquired Loans Recorded At Fair Value [Member] | Commercial Business [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]	4,057	4,460
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	8,955	13,877	18,851
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	8,896	12,652
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	20	424
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	32	782
Acquired Loans Recorded At Fair Value [Member] | Home Equity [Member] | Loss [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]	7	19
Acquired Loans Recorded At Fair Value [Member] | Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		122	225	263
Acquired Loans Recorded At Fair Value [Member] | Consumer [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		122	225
Acquired Loans With Deteriorated Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		2,144	2,196	2,381
Acquired Loans With Deteriorated Credit [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		371	377
Acquired Loans With Deteriorated Credit [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,084	795
Acquired Loans With Deteriorated Credit [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		689	1,024
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		1,413	1,443	1,474
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		153	147
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		571	272
Acquired Loans With Deteriorated Credit [Member] | Residential One-to-Four Family [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		689	1,024
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		731	753	669
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member] | Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		218	230
Acquired Loans With Deteriorated Credit [Member] | Commercial And Multi-family [Member] | Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross		$ 513	$ 523
Acquired Loans With Deteriorated Credit [Member] | Commercial Business [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[1]			167
Acquired Loans With Deteriorated Credit [Member] | Home Equity [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable, gross	[2]			$ 71
[1]	Includes business lines of credit.
[2]	Includes home equity lines of credit.

Premises and Equipment (Narrati

Premises and Equipment (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Premises and Equipment [Abstract]
Depreciation of premises and equipment	$ 2,522,000	$ 2,422,000	$ 2,149,000
Rental expense	$ 2,448,000	$ 2,410,000	$ 1,990,000

Premises and Equipment (Summary

Premises and Equipment (Summary of Premises and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 33,737	$ 31,829
Accumulated depreciation and amortization	(14,969)	(12,447)
Premises and equipment, net	18,768	19,382
Land [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	2,116	2,116
Buildings and improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	14,853	14,662
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	5,968	4,987
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Premises and equipment, gross	$ 10,800	$ 10,064

Premises and Equipment (Minimum

Premises and Equipment (Minimum Obligation under Non-Cancelable Lease Agreement) (Details) $ in Thousands	Dec. 31, 2017USD ($)
Premises and Equipment [Abstract]
2,018	$ 2,399
2,019	2,065
2,020	1,968
2,021	1,728
2,022	1,553
Thereafter	4,414
Total	$ 14,127

Interest Receivable (Summary of

Interest Receivable (Summary of Interest Receivable) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	$ 6,153	$ 5,573
Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	5,845	5,359
Securities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Receivable	$ 308	$ 214

Deposits (Narrative) (Details)

Deposits (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Time Deposits [Line Items]
Certificates of deposit	$ 198.5	$ 172.5
Related party deposits	7.2
Available-for-sale Securities [Member]
Time Deposits [Line Items]
Collateral pledged	63
Letter of Credit [Member]
Time Deposits [Line Items]
Collateral pledged	$ 46

Deposits (Schedule Of Deposits)

Deposits (Schedule Of Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
Non-interest bearing	$ 201,043	$ 183,821
Interest bearing	297,040	281,773
Money market	258,632	125,614
Demand	756,715	591,208
Savings and club	148,022	260,122
Certificates of deposit	664,633	540,875
Total deposits	$ 1,569,370	$ 1,392,205

Deposits (Schedule Of Maturitie

Deposits (Schedule Of Maturities Of Time Certificates Of Deposits) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deposits [Abstract]
2,018	$ 419,586
2,019	127,723
2,020	64,693
2,021	31,562
2,022	21,069
Thereafter
Total	$ 664,633	$ 540,875

Short-Term Debt and Long-term72

Short-Term Debt and Long-term Debt (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Loans pledged as collateral	$ 400,200,000	$ 403,500,000
Securities pledged as collateral	$ 0	$ 0
Maximum ratio of debt to total assets under debt covenant	50.00%
Maximum total debt under debt covenant	$ 970,953,500

Short-Term Debt and Long-term73

Short-Term Debt and Long-term Debt (Short-term Borrowings) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Short-Term Debt, Long-Term Debt and Subordinated Debentures [Abstract]
Balance at end of period		$ 20,000
Average balance outstanding during the year	$ 1,016	103	$ 595
Highest month-end balance during the year	$ 35,000	$ 20,000	$ 3,000
Average interest rate during the year	1.02%	0.88%	0.37%
Weighted average interest rate at year-end		1.00%

Short-Term Debt and Long-term74

Short-Term Debt and Long-term Debt (Long Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Weighted Average Rate	1.78%	2.66%
Amount	$ 185,000	$ 155,000
Maturing by December 31, 2017 [Member]
Debt Instrument [Line Items]
Weighted Average Rate		4.45%
Amount		$ 55,000
Maturing by December 31, 2018 [Member]
Debt Instrument [Line Items]
Weighted Average Rate	1.41%	1.41%
Amount	$ 25,000	$ 25,000
Maturing by December 31, 2019 [Member]
Debt Instrument [Line Items]
Weighted Average Rate	1.86%	1.85%
Amount	$ 50,000	$ 23,000
Maturing by December 31, 2020 [Member]
Debt Instrument [Line Items]
Weighted Average Rate	1.68%	1.46%
Amount	$ 40,000	$ 20,000
Maturing by December 31, 2021 [Member]
Debt Instrument [Line Items]
Weighted Average Rate	1.83%	1.76%
Amount	$ 38,000	$ 10,000
Maturing by December 31, 2022 [Member]
Debt Instrument [Line Items]
Weighted Average Rate	2.03%	1.98%
Amount	$ 32,000	$ 22,000

Subordinated Debentures (Narrat

Subordinated Debentures (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Trust Preferred Junior Subordinated Debenture [Member]
Subordinated Borrowing [Line Items]
Trust preferred junior subordinated debenture, interest rate	4.25%	3.643%

Subordinated Debentures (Summar

Subordinated Debentures (Summary of Trust Preferred Securities) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Subordinated Borrowing [Line Items]
Securities Issued	$ 4,124	$ 4,124
Trust Preferred Junior Subordinated Debenture [Member]
Subordinated Borrowing [Line Items]
Issuance Date	Jun. 17, 2004
Securities Issued	$ 4,124
Liquidation Value	$ 1,000
Coupon Rate	Floating 3-month LIBOR + 265 Basis Points
Maturity	Jun. 17, 2034
Redeemable by Issuer Beginning	Jun. 17, 2009

Regulatory Matters (Schedule of

Regulatory Matters (Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual - Amount	$ 201,095	$ 156,152
Total capital (to risk-weighted assets): Actual - Ratio	13.33%	11.42%
Total capital (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 120,605	$ 109,372
Total capital (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	8.00%	8.00%
Tier 1 capital (to risk-weighted assets): Actual - Amount	$ 183,720	$ 139,061
Tier 1 capital (to risk-weighted assets): Actual - Ratio	12.18%	10.17%
Tier 1 capital (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 90,495	$ 82,029
Tier 1 capital (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	6.00%	6.00%
Common Equity Tier 1 (to risk-weighted assets): Actual - Amount	$ 166,355	$ 119,473
Common Equity Tier 1 (to risk-weighted assets): Actual - Ratio	11.03%	8.74%
Common Equity Tier 1 (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 67,871	$ 61,522
Common Equity Tier 1 (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	4.50%	4.50%
Tier 1 capital (to average assets): Actual - Amount	$ 183,720	$ 139,061
Tier 1 capital (to average assets): Actual - Ratio	9.58%	8.17%
Tier 1 capital (to average assets): For Capital Adequacy Purposes - Amount	$ 76,733	$ 68,117
Tier 1 capital (to average assets): For Capital Adequacy Purposes - Ratio	4.00%	4.00%
BCB Community Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Total capital (to risk-weighted assets): Actual - Amount	$ 199,637	$ 154,923
Total capital (to risk-weighted assets): Actual - Ratio	13.24%	11.34%
Total capital (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 120,605	$ 109,330
Total capital (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	8.00%	8.00%
Total capital (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 150,757	$ 136,663
Total capital (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Ratio	10.00%	10.00%
Tier 1 capital (to risk-weighted assets): Actual - Amount	$ 182,262	$ 137,839
Tier 1 capital (to risk-weighted assets): Actual - Ratio	12.09%	10.09%
Tier 1 capital (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 90,454	$ 81,998
Tier 1 capital (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	6.00%	6.00%
Tier 1 capital (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 120,605	$ 109,330
Tier 1 capital (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Ratio	8.00%	8.00%
Common Equity Tier 1 (to risk-weighted assets): Actual - Amount	$ 182,262	$ 137,839
Common Equity Tier 1 (to risk-weighted assets): Actual - Ratio	12.09%	10.09%
Common Equity Tier 1 (to risk-weighted assets): For Capital Adequacy Purposes - Amount	$ 67,841	$ 61,498
Common Equity Tier 1 (to risk-weighted assets): For Capital Adequacy Purposes - Ratio	4.50%	4.50%
Common Equity Tier 1 (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 97,992	$ 88,831
Common Equity Tier 1 (to risk-weighted assets): To be Well Capitalized under Prompt Corrective Action Provisions - Ratio	6.50%	6.50%
Tier 1 capital (to average assets): Actual - Amount	$ 182,262	$ 137,839
Tier 1 capital (to average assets): Actual - Ratio	9.50%	8.10%
Tier 1 capital (to average assets): For Capital Adequacy Purposes - Amount	$ 76,712	$ 68,074
Tier 1 capital (to average assets): For Capital Adequacy Purposes - Ratio	4.00%	4.00%
Tier 1 capital (to average assets): To be Well Capitalized under Prompt Corrective Action Provisions - Amount	$ 95,890	$ 85,092
Tier 1 capital (to average assets): To be Well Capitalized under Prompt Corrective Action Provisions - Ratio	5.00%	5.00%

Benefit Plans (Narrative) (Deta

Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands	Sep. 13, 2017	Sep. 16, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Apr. 28, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized net gain (loss) included in accumulated other comprehensive (loss) income			$ (2,245)	$ (2,100)		$ (2,245)	$ (2,100)
Maximum cash equivalent component						3.00%
Estimated long-term inflation rate						3.00%
Expected company contribution						$ 0
Normal retirement age						65 years
Retirement benefit as percentage of compensation			75.00%			75.00%
Options granted						350,000	160,000
Shares underlying unexercised options			723,233			723,233
Expected future compensation expense, unexercised options			$ 1,600			$ 1,600
Expected future compensation expense, weighted average period for recognition						7 years 4 months 10 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						6.00%
Minimum [Member] | Equity Securities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						5.00%
Minimum [Member] | Fixed Income Securities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						2.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						11.00%
Maximum [Member] | Equity Securities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						9.00%
Maximum [Member] | Fixed Income Securities [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected return on plan assets						6.00%
Supplemental Employee Retirement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized net gain (loss) included in accumulated other comprehensive (loss) income			$ 36	$ 36		$ 36	$ 36
Expected company contribution						$ 62
2011 Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance								900,000
2011 Stock Plan [Member] | Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted	275,000	110,000
Vesting period						10 years
2011 Stock Plan [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted			75,000		50,000
Tranche 1 - 10 [Member] | 2011 Stock Plan [Member] | Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage						10.00%
Tranche 1 - 5 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage			20.00%
Tranche 1 - 3 [Member] | 2011 Stock Plan [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage				33.00%

Benefit Plans (Plan's Funded St

Benefit Plans (Plan's Funded Status) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in Benefit Obligation: Benefit obligation, beginning of year	$ 7,488,000	$ 7,811,000
Change in Benefit Obligation: Interest Cost	300,000	328,000
Change in Benefit Obligation: Actuarial loss (gain)	695,000	(52,000)
Change in Benefit Obligation: Benefits paid	(481,000)	(500,000)
Change in Benefit Obligation: Lump Sum Distributions	(77,000)	(99,000)
Change in Benefit Obligation: Benefit obligation, ending	7,925,000	7,488,000
Change in Plan Assets: Fair value of assets, beginning of year	7,645,726	6,569,000
Change in Plan Assets: Actual return on plan assets	875,000	876,000
Change in Plan Assets: Employer contributions		800,000
Change in Plan Assets: Benefits paid	(481,000)	(500,000)
Change in Plan Assets: Fair value of assets, ending	7,962,709	7,645,726
Reconciliation of Funded Status: Accumulated benefit obligation			$ 7,925,000	$ 7,488,000
Reconciliation of Funded Status: Projected benefit obligation	7,488,000	7,811,000	7,925,000	7,488,000
Reconciliation of Funded Status: Fair value of assets	7,645,726	6,569,000	7,962,709	7,645,726
Reconciliation of Funded Status: Funded (unfunded) status, included in other liabilities, net			$ 38,000	$ 158,000
Valuation assumptions used to determine benefit obligation at period end: Discount rate			3.60%	4.14%
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in Benefit Obligation: Benefit obligation, beginning of year	283,000	332,000
Change in Benefit Obligation: Interest Cost	10,000	13,000
Change in Benefit Obligation: Actuarial loss (gain)	2,000
Change in Benefit Obligation: Benefits paid	(62,000)	(62,000)
Change in Benefit Obligation: Benefit obligation, ending	233,000	283,000
Change in Plan Assets: Employer contributions	62,000	62,000
Change in Plan Assets: Benefits paid	(62,000)	(62,000)
Reconciliation of Funded Status: Accumulated benefit obligation			$ 233,000	$ 283,000
Reconciliation of Funded Status: Projected benefit obligation	$ 283,000	$ 332,000	233,000	283,000
Reconciliation of Funded Status: Funded (unfunded) status, included in other liabilities, net			$ (233,000)	$ (283,000)
Valuation assumptions used to determine benefit obligation at period end: Discount rate			3.64%	4.14%

Benefit Plans (Net Periodic Pen

Benefit Plans (Net Periodic Pension and SERP Expense and Valuation Assumptions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 300	$ 328
Expected return on plan assets	(444)	(541)
Amortization of unrecognized loss	118	146
Net periodic pension benefit/postretirement cost	$ (26)	$ (67)
Valuation assumptions used to determine net periodic benefit cost for the year: Discount rate	4.14%	4.34%
Valuation assumptions used to determine net periodic benefit cost for the year: Long term rate of return on plan assets	6.00%	8.00%
Valuation assumptions used to determine net periodic benefit cost for the year: Salary Increase Rate
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 10	$ 13
Net periodic pension benefit/postretirement cost	$ 10	$ 13
Valuation assumptions used to determine net periodic benefit cost for the year: Discount rate	4.14%	4.34%

Benefits Plans (Summary of Stoc

Benefits Plans (Summary of Stock Option Activity) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017USD ($)$ / sharesshares	Dec. 31, 2016USD ($)$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Beginning Balance - Number of Option Shares | shares	575,000	417,000
Options Granted - Number of Option Shares | shares	350,000	160,000
Options Exercised - Number of Option Shares | shares	(700)
Options Forfeited - Number of Option Shares | shares	(35,000)
Options Expired - Number of Option Shares | shares		(2,000)
Outstanding, Ending Balance - Number of Option Shares | shares	889,300	575,000	417,000
Options Exercisable - Number of Option Shares | shares	166,067
Outstanding Option Shares, Range of Exercise Prices, Lower Range Limit	$ 8.93	$ 8.93	$ 8.93
Outstanding Option Shares, Range of Exercise Prices, Upper Range Limit	13.32	13.32	15.65
Options Granted, Exercise Price	12.40
Options Exercised - Exercise Price	10.55
Options Shares Forfeited - Range of Exercise Prices, Lower Range Limit	8.93
Options Shares Forfeited - Range of Exercise Prices, Upper Range Limit	13.32
Options expired - Exercise prices		15.11
Outstanding Option Shares, Beginning Balance - Weighted Average Exercise Price	10.78	10.75
Options granted - Weighted Average Exercise Price	12.40	10.92
Option Shares Exercised - Weighted Average Exercise Price	10.55
Option Shares Forfeited - Weighted Average Exercise Price	10.75
Options expired - Weighted Average Exercise Price		15.11
Outstanding Option Shares, Ending Balance - Weighted Average Exercise Price	$ 11.42	$ 10.78	$ 10.75
Outstanding, Weighted Average Remaining Contractual Term	8 years 22 days	7 years 11 months 9 days	8 years 2 months 19 days
Options Outstanding, Intrinsic Value | $	$ 1,855	$ 1,198	$ 219
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options Granted, Exercise Price		$ 10.92
Options expired - Exercise prices		$ 15.11

Benefit Plans (Asset Allocation

Benefit Plans (Asset Allocation Parameters by Asset Class) (Details)	12 Months Ended
	Dec. 31, 2017
Equity [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum	40.00%
Target	62.00%
Maximum	60.00%
Large-Cap U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	48.00%
Mid/Small-Cap U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	14.00%
Non-U.S [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	0.00%
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum	40.00%
Target	38.00%
Maximum	60.00%
Long/Short Duration [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	37.00%
Money Market/Certificates of Deposit [Member]
Defined Benefit Plan Disclosure [Line Items]
Target	1.00%

Benefit Plans (Schedule of Fair

Benefit Plans (Schedule of Fair Value of Plan Assets) (Details) - Pension Plan [Member] - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	$ 7,962,709	$ 7,645,726	$ 6,569,000
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	7,962,709	7,645,726
Mutual funds-Equity: Large-Cap Value [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	2,194,188	2,065,510
Mutual funds-Equity: Large-Cap Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	2,194,188	2,065,510
Mutual funds-Equity: Mid-Cap Value [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	385,971	371,203
Mutual funds-Equity: Mid-Cap Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	385,971	371,203
Mutual funds-Equity: Large Blend [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,584,830	1,415,265
Mutual funds-Equity: Large Blend [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,584,830	1,415,265
Mutual Funds-Fixed Income: World Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	931,783	985,817
Mutual Funds-Fixed Income: World Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	931,783	985,817
Mutual Funds-Fixed Income: Multi Sector Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	979,788	1,008,504
Mutual Funds-Fixed Income: Multi Sector Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	979,788	1,008,504
Mutual funds-Fixed Income: High Yield Bond [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,007,258	1,027,330
Mutual funds-Fixed Income: High Yield Bond [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	1,007,258	1,027,330
Stock: BCB Common Stock [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	751,463	673,725
Stock: BCB Common Stock [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	751,463	673,725
Cash Equivalents: Money Market [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	127,428	98,372
Cash Equivalents: Money Market [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Defined Benefit Plan Fair Value Of Plan Assets [Line Item]
Fair value of plan assets	$ 127,428	$ 98,372

Benefit Plans (Expected Benefit

Benefit Plans (Expected Benefit Payments) (Details) $ in Thousands	Dec. 31, 2017USD ($)
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2,018	$ 536
2,019	536
2,020	524
2,021	507
2,023	504
2023-2027	2,418
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2,018	62
2,019	62
2,020	32
2,021	32
2,023	32
2023-2027	$ 13

Benefit Plans (Schedule of Assu

Benefit Plans (Schedule of Assumptions Used) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	7 years 8 months 12 days	7 years 10 months 6 days
Risk-free interest rate	2.04%	1.56%
Volatility	27.69%	35.06%
Dividend yield	4.52%	5.13%
Fair value	$ 2.06	$ 2.13
Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life	7 years 8 months 12 days	7 years 10 months 6 days
Risk-free interest rate	2.04%	1.56%
Volatility	27.69%	35.06%
Dividend yield	4.52%	5.13%
Fair value	$ 2.06	$ 2.13

Dividend Restrictions (Narrativ

Dividend Restrictions (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Dividend Restrictions [Abstract]
Minimum percentage of capital stock surplus under dividend restriction	50.00%
Cash dividends paid to parent company	$ 7,951,000	$ 6,627,000	$ 4,957,000

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	Dec. 22, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2011
2011 Acquisition [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards		$ 0				$ 1,200,000
Internal Revenue Service (IRS) [Member]
Income Tax Disclosure [Line Items]
Maximum annual amount of net operating loss carryforward that may be used on a cumulative basis		235,000
Internal Revenue Service (IRS) [Member] | Tax Year 2011 [Member]
Income Tax Disclosure [Line Items]
Gross deferred tax assets related to net operating loss caryforwards		$ 0	$ 23,000
Internal Revenue Service (IRS) [Member] | 2011 Acquisition [Member]
Income Tax Disclosure [Line Items]
Operating loss carryforwards			$ 23,000
Operating loss carryforwards, expiration date		Dec. 31, 2030
Internal Revenue Service (IRS) [Member] | 2011 Acquisition [Member] | Tax Year 2011 [Member]
Income Tax Disclosure [Line Items]
Gross deferred tax assets related to net operating loss caryforwards		$ 23,000
Minimum [Member]
Income Tax Disclosure [Line Items]
Federal statutory rate			34.00%	34.00%	34.00%
Maximum [Member]
Income Tax Disclosure [Line Items]
Federal statutory rate			35.00%	35.00%	35.00%
Scenario, Plan [Member]
Income Tax Disclosure [Line Items]
Federal statutory rate	21.00%

Income Taxes (Components of Inc

Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	Dec. 22, 2017	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current income tax expense: Federal										$ 5,020	$ 2,632	$ 3,730
Current income tax expense: State										1,279	1,139	1,082
Current income tax expense										6,299	3,771	4,812
Deferred income tax expense: Federal										1,277	1,439	2
Deferred income tax expense: Federal - remeasurement of deferred tax assets and liabilities										2,183
Deferred income tax expense: State										472	48
Deferred income tax expense										3,932	1,487	2
Income Tax Expense		$ 4,458	$ 2,180	$ 1,648	$ 1,945	$ 1,611	$ 1,171	$ 1,085	$ 1,391	$ 10,231	$ 5,258	$ 4,814
Scenario, Plan [Member]
Federal statutory rate	21.00%

Income Taxes (Deferred Tax Asse

Income Taxes (Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Abstract]
Deferred income tax assets: Allowance for loan losses	$ 4,884	$ 7,030
Deferred Income Tax Assets: Other real estate owned expenses	78	114
Deferred income tax assets: Non-accrual interest	199	342
Deferred income tax assets: Benefit Plans		51
Deferred income tax assets: Benefit Plan-accumulated other comprehensive loss	641	873
Deferred income tax assets: Valuation adjustment on loans receivable acquired	627	1,045
Deferred income tax assets: Unrealized loss on securities available for sale	587	1,791
Deferred income tax assets: Net operating loss carryforwards		23
Deferred income tax assets: Other	323	794
Deferred income tax assets	7,339	12,063
Deferred income tax liabilities: Valuation adjustment on premises and equipment acquired	637	926
Deferred income tax liabilities, Depreciation	243	357
Deferred income tax liabilities, SBA Servicing Asset	750	827
Defined income tax liabilities, Benefit Plans	565
Deferred income tax liabilities	2,195	2,110
Net Deferred Tax Asset	$ 5,144	$ 9,953

Income Taxes (Effective Income

Income Taxes (Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Federal income tax expense at statutory rate									$ 6,966	$ 4,532	$ 4,101
Income Tax Reconciliation, State and Local Income Taxes									1,148	781	707
Remeasurement of deferred tax assets and liabilities									2,183
Deferred income tax expense: Federal - remeasurement of deferred tax assets and liabilities									2,183
Income Tax Reconciliation, Other Reconciling Items									(66)	(55)	6
State income tax, net of federal income tax effect									$ 1,148	$ 781	$ 707
Effective Income Tax Rate, Continuing Operations									50.60%	39.70%	40.70%
Other items, net									$ (66)	$ (55)	$ 6
Income Tax Expense	$ 4,458	$ 2,180	$ 1,648	$ 1,945	$ 1,611	$ 1,171	$ 1,085	$ 1,391	$ 10,231	$ 5,258	$ 4,814
Effective Income Tax Rate									50.60%	39.70%	40.70%

Commitments and Contingencies91

Commitments and Contingencies (Narrative) (Details) - USD ($)	Feb. 20, 2018	Sep. 21, 2015	Jul. 09, 2015	Mar. 11, 2015	Dec. 31, 2014
Kube Versus Pamrapo Bancorp [Member]
Commitments And Contingencies Disclosure [Line Items]
Settlement amount		$ 1,950,000
Amount awarded					$ 1,000,000
Carrier Suit [Member]
Commitments And Contingencies Disclosure [Line Items]
Settlement amount				$ 1,750,000
Damages paid			$ 1,750,000
Maximum [Member] | Kube Versus Pamrapo Bancorp [Member]
Commitments And Contingencies Disclosure [Line Items]
Amount awarded		$ 1,000,000
Subsequent Event [Member] | Carrier Suit [Member]
Commitments And Contingencies Disclosure [Line Items]
Settlement amount	$ 2,200,000

Commitments and Contingencies92

Commitments and Contingencies (Loan Related Commitments) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Commitments And Contingencies Disclosure [Line Items]
Fair Value	$ 262,123	$ 164,743
Loan Origination [Member]
Commitments And Contingencies Disclosure [Line Items]
Fair Value	139,451	61,958
Standby Letters of Credit [Member]
Commitments And Contingencies Disclosure [Line Items]
Fair Value	2,677	964
Construction [Member]
Commitments And Contingencies Disclosure [Line Items]
Fair Value	50,008	41,206
Unused Lines Of Credit [Member]
Commitments And Contingencies Disclosure [Line Items]
Fair Value	$ 69,987	$ 60,615

Fair Value Measurements and F93

Fair Value Measurements and Fair Values of Financial Instruments (Narrative) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Fair Values of Financial Instruments [Abstract]
Impaired loans	$ 12,402,000	$ 14,050,000
Valuation allowance	$ 2,033,000	$ 3,530,000

Fair Value Measurements and F94

Fair Value Measurements and Fair Values of Financial Instruments (Fair Value Measurements, Recurring) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 122,589	$ 94,765
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	122,589	94,765
Residential mortgage-backed securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	111,794	82,472
Residential mortgage-backed securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	111,794	82,472
Municipal Obligations [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,502	6,961
Municipal Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,502	6,961
Preferred Stock [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	8,293	5,332
Preferred Stock [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 8,293	$ 5,332

Fair Value Measurements and F95

Fair Value Measurements and Fair Values of Financial Instruments (Quantitative Information about Level 3 Fair Value Measurements) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Impaired Loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		$ 10,369	$ 10,519
Impaired Loans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		10,369	10,519
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		532	3,525
Other Real Estate Owned [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		532	3,525
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		$ 10,369	$ 10,519
Valuation Techniques	[1]	Appraisal of collateral	Appraisal of collateral (1)
Unobservable Input	[2]	Appraisal adjustments	Appraisal adjustments
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Minimum [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range		0.00%	0.00%
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Maximum [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range		10.00%	10.00%
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value Estimate		$ 532	$ 3,525
Valuation Techniques	[1]	Appraisal of collateral	Appraisal of collateral (1)
Unobservable Input	[2]	Appraisal adjustments	Appraisal adjustments
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member] | Minimum [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range		0.00%	0.00%
Appraisal of Collateral [Member] | Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member] | Maximum [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Range		10.00%	10.00%
[1]	Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various level 3 inputs which are not identifiable.
[2]	Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.

Fair Value Measurements and F96

Fair Value Measurements and Fair Values of Financial Instruments (Carrying Values and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 122,589	$ 94,765
Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	124,235	65,038
Interest-earning time deposits	980	980
Securities available for sale	122,589	94,765
Loans held for sale	1,295	4,153
Loans receivable, net	1,643,677	1,485,159
FHLB of New York stock, at cost	10,211	9,306
Accrued interest receivable	6,153	5,573
Deposits	1,569,370	1,392,205
Borrowings	185,000	175,000
Subordinated debentures	4,124	4,124
Accrued interest payable	791	825
Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	124,235	65,038
Interest-earning time deposits	980	980
Securities available for sale	122,589	94,765
Loans held for sale	1,295	4,273
Loans receivable, net	1,643,626	1,515,088
FHLB of New York stock, at cost	10,211	9,306
Accrued interest receivable	6,153	5,573
Deposits	1,578,382	1,384,578
Borrowings	182,947	176,109
Subordinated debentures	4,078	4,150
Accrued interest payable	791	825
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	124,235	65,038
Interest-earning time deposits	980	980
Deposits	903,155	834,665
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	122,589	94,765
Loans held for sale	1,295	4,273
FHLB of New York stock, at cost	10,211	9,306
Accrued interest receivable	6,153	5,573
Deposits	673,227	549,913
Borrowings	182,947	176,109
Subordinated debentures	4,078	4,150
Accrued interest payable	791	825
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans receivable, net	$ 1,643,626	$ 1,515,088

Accumulated Other Comprehensi97

Accumulated Other Comprehensive Loss (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss)	$ (3,142)	$ (3,856)
Net Unrealized Gain (Loss) On Securities Available For Sale [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	(2,089)	(4,383)
Tax effect	587	1,791
Accumulated other comprehensive income (loss)	(1,502)	(2,592)
Benefit Plan Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income (loss), before tax	(2,281)	(2,137)
Tax effect	641	873
Accumulated other comprehensive income (loss)	$ (1,640)	$ (1,264)

Parent Only Condensed Financi98

Parent Only Condensed Financial Information (Statements of Financial Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and due from banks	$ 16,460	$ 12,121
Other assets	9,253	10,374
Total assets	1,942,837	1,708,208
Subordinated debentures	4,124	4,124
Other Liabilities	7,889	5,798
Total Liabilities	1,766,383	1,577,127
Stockholders’ Equity	176,454	131,081	$ 133,544	$ 102,252
Total Liabilites and Stockholders' equity	1,942,837	1,708,208
Parent Company [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and due from banks	852	865
Investment in subsidiaries	179,120	133,984
Restricted common stock	124	124
Other assets	683	517
Total assets	180,779	135,490
Subordinated debentures	4,124	4,124
Other Liabilities	201	285
Total Liabilities	4,325	4,409
Stockholders’ Equity	176,454	131,081
Total Liabilites and Stockholders' equity	$ 180,779	$ 135,490

Parent Only Condensed Financi99

Parent Only Condensed Financial Information (Statements of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Income Statements, Captions [Line Items]
Total interest income	$ 20,641	$ 19,406	$ 19,069	$ 18,455	$ 18,112	$ 17,731	$ 17,681	$ 17,831	$ 77,571	$ 71,355	$ 67,380
Interest expense, borrowed money	3,999	3,832	4,006	3,850	3,710	4,134	4,318	4,133	15,687	16,295	13,869
Income before Income Tax Expense and Equity in Undistributed Earnings of Subsidiaries					4,084	3,085	2,666	3,426
Income tax benefit	4,458	2,180	1,648	1,945	1,611	1,171	1,085	1,391	10,231	5,258	4,814
Net Income	$ 1,340	$ 3,217	$ 2,513	$ 2,913	$ 2,473	$ 1,914	$ 1,581	$ 2,035	9,982	8,003	7,030
Parent Company [Member]
Condensed Income Statements, Captions [Line Items]
Dividends from Bank subsidiary									7,951	6,627	4,957
Total interest income									7,951	6,627	4,957
Interest expense, borrowed money									158	137	119
Other									212	176	190
Total Expense									370	313	309
Income before Income Tax Expense and Equity in Undistributed Earnings of Subsidiaries									7,581	6,314	4,648
Income tax benefit									(126)	(107)	(106)
Income before Equity in Undistributed Earnings of Subsidiaries									7,707	6,421	4,754
Equity in undistributed earnings of Subsidiaries									2,275	1,582	2,276
Net Income									$ 9,982	$ 8,003	$ 7,030

Parent Only Condensed Financ100

Parent Only Condensed Financial Information (Statements of Cash Flows) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended								12 Months Ended
	Nov. 30, 2015	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Cash Flow Statements, Captions [Line Items]
Net Income		$ 1,340	$ 3,217	$ 2,513	$ 2,913	$ 2,473	$ 1,914	$ 1,581	$ 2,035	$ 9,982	$ 8,003	$ 7,030
Decrease (increase) in other assets										1,121	(1,043)	(2,257)
Increase (decrease) in other liabilities										1,979	(250)	(1,736)
Net Cash Provided By Operating Activities										21,034	7,241	7,689
Net Cash Used In Investing Activities										(182,923)	(159,781)	(218,007)
Redemption of preferred stock										(11,720)
Proceeds from issuance of common stock	$ 25,600									43,314	336	25,978
Cash dividend paid										(6,544)	(6,016)	(4,461)
Net Cash Provided by (Used in) Financing Activities										221,086	84,943	310,830
Net (Decrease) in Cash and Cash Equivalents										59,197	(67,597)	100,512
Cash and Cash Equivalents - Begininng					65,038				132,635	65,038	132,635	32,123
Cash and Cash Equivalents - Ending		124,235				65,038				124,235	65,038	132,635
Parent Company [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net Income										9,982	8,003	7,030
Equity in undistributed (earnings) of subsidiaries										(2,275)	(1,582)	(2,276)
Decrease (increase) in other assets										(166)	1,087	153
Increase (decrease) in other liabilities										(84)	(35)	73
Net Cash Provided By Operating Activities										7,457	7,473	4,980
Additional investment in subsidiary										(41,389)	1,710	(29,617)
Net Cash Used In Investing Activities										(41,389)	1,710	(29,617)
Proceeds from issuance of preferred stock										9,496		3,848
Redemption of preferred stock										(11,720)	(1,710)
Proceeds from issuance of common stock										43,314	336	25,978
Cash dividend paid										(7,158)	(6,952)	(5,378)
Purchase of treasury stock										(13)	(7)
Net Cash Provided by (Used in) Financing Activities										33,919	(8,333)	24,448
Net (Decrease) in Cash and Cash Equivalents										(13)	850	(189)
Cash and Cash Equivalents - Begininng					$ 865				$ 15	865	15	204
Cash and Cash Equivalents - Ending		$ 852				$ 865				$ 852	$ 865	$ 15

Quarterly Financial Data (Summa

Quarterly Financial Data (Summary of Quarterly Financial Data) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Quarterly Financial Data [Abstract]
Interest income	$ 20,641	$ 19,406	$ 19,069	$ 18,455	$ 18,112	$ 17,731	$ 17,681	$ 17,831	$ 77,571	$ 71,355	$ 67,380
Interest expense	3,999	3,832	4,006	3,850	3,710	4,134	4,318	4,133	15,687	16,295	13,869
Net Interest Income	16,642	15,574	15,063	14,605	14,402	13,597	13,363	13,698	61,884	55,060	53,511
Provision for loan losses	325	511	776	498	102	(301)	37	189	2,110	27	2,280
Net Interest Income, after Provision for loan losses	16,317	15,063	14,287	14,107	14,300	13,898	13,326	13,509	59,774	55,033	51,231
Non-interest income	1,515	1,633	2,022	2,313	1,433	1,530	1,506	1,654	7,483	6,123	7,065
Non-interest expense	12,034	11,299	12,148	11,562	11,649	12,343	12,166	11,737	47,044	47,895	46,452
Income before Income Taxes	5,798	5,397	4,161	4,858					20,213	13,261	11,844
Income taxes	4,458	2,180	1,648	1,945	1,611	1,171	1,085	1,391	10,231	5,258	4,814
Net Income	1,340	3,217	2,513	2,913	2,473	1,914	1,581	2,035	9,982	8,003	7,030
Preferred stock dividends	165	166	165	118	234	234	234	234	614	936	917
Basic earnings per share - Income available to Common stockholders	$ 1,175	$ 3,051	$ 2,348	$ 2,795	$ 2,239	$ 1,680	$ 1,347	$ 1,801	$ 9,368	$ 7,067	$ 6,113
Basic earnings per share - Income available to Common stockholders	$ 0.05	$ 0.25	$ 0.21	$ 0.25	$ 0.20	$ 0.15	$ 0.12	$ 0.16	$ 0.76	$ 0.63	$ 0.69
Diluted earnings per share - Income available to Common stockholders	0.04	0.25	0.21	0.25	0.20	0.15	0.12	0.16	$ 0.75	$ 0.63	$ 0.69
Dividends per common share	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14	$ 0.14

Definitive Merger Agreement (Na

Definitive Merger Agreement (Narrative) (Details)	3 Months Ended
	Jun. 30, 2018sharesitem$ / shares	Dec. 31, 2017USD ($)
Business Acquisition [Line Items]
Merger related expense | $		$ 802,000
IAB [Member]
Business Acquisition [Line Items]
Termination fee | $		$ 800,000
IAB [Member] | Scenario, Forecast [Member]
Business Acquisition [Line Items]
Share conversion rate | shares	0.189
Share price | $ / shares	$ 3.05
Percent paid in cash	20.00%
Percent paid in common stock	80.00%
Classes of preferred stock issued | item	2
Classes of preferred stock purchased | item	2

Common Stock Offering (Narrativ

Common Stock Offering (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 12, 2017	Nov. 30, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Common Stock Offering [Line Items]
Shares issued		2,760,000
Shares issued, price per share		$ 10
Net proceeds from issuance of common stock		$ 25,600	$ 43,314	$ 336	$ 25,978
Parent Company [Member]
Common Stock Offering [Line Items]
Net proceeds from issuance of common stock			$ 43,314	$ 336	$ 25,978
Common Stock [Member]
Common Stock Offering [Line Items]
Shares issued	3,265,306
Shares issued, price per share	$ 12.25
Shares issued for over-allotment	449,796
Net proceeds from issuance of common stock	$ 42,800
Stock issuance costs	$ 2,800

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details) - USD ($)	Feb. 20, 2018	Jan. 17, 2018	Mar. 11, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Date declared		Jan. 17, 2018
Dividend declared		$ 0.14
Date paid		Feb. 20, 2018
Date of record		Feb. 5, 2018
Carrier Suit [Member]
Subsequent Event [Line Items]
Settlement amount			$ 1,750,000
Carrier Suit [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Settlement amount	$ 2,200,000
Insurance receivable	$ 2,200,000