Clifton Bancorp 10-Q 6 Nov 14 2015 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2015	'
Document Fiscal Period Focus	'Q2	'
Trading Symbol	'CSBK	'
Entity Registrant Name	'Clifton Bancorp Inc.	'
Entity Central Index Key	'0001592329	'
Current Fiscal Year End Date	'--03-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	26,676,198

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$43,573	$167,021
Interest-bearing deposits in other banks	31,406	25,560
Cash and Cash Equivalents	74,979	192,581
Securities available for sale, at fair value	14,194	3,599
Securities held to maturity, at cost (fair value of $445,557 at September 30, 2014 and $421,064 at March 31, 2014)	440,401	418,696
Loans receivable	620,274	587,578
Allowance for loan losses	-3,250	-3,071
Net Loans	617,024	584,507
Bank owned life insurance	42,631	42,037
Premises and equipment	7,339	7,397
Federal Home Loan Bank of New York stock	6,266	7,889
Interest receivable	3,525	3,281
Real estate owned	'	'
Other assets	5,168	6,003
Total Assets	1,211,527	1,265,990
Deposits:	'	'
Non-interest bearing	11,837	17,101
Interest bearing	719,233	746,811
Total Deposits	731,070	763,912
Advances from Federal Home Loan Bank of New York	112,500	142,500
Advance payments by borrowers for taxes and insurance	5,977	6,127
Stock subscription deposits	'	154,345
Other liabilities and accrued expenses	4,287	4,969
Total Liabilities	853,834	1,071,853
Commitments and Contingencies	0	'
Stockholders' Equity	'	'
Preferred stock ($.01 par value), 10,000,000 shares authorized; shares issued or outstanding at September 30, 2014 - none; 1,000,000 shares authorized; shares issued or outstanding at March 31, 2014 - none	0	'
Common stock ($.01 par value), 85,000,000 shares authorized, 26,676,198 shares issued and outstanding at September 30, 2014; 75,000,000 shares authorized, 30,530,470 shares issued and 26,528,999 shares outstanding at March 31, 2014	267	305
Paid-in capital	268,056	136,688
Deferred compensation obligation under Rabbi Trust	165	346
Retained earnings	102,667	104,110
Treasury stock, at cost; shares at September 30, 2014 - none; 4,001,471 shares at March 31, 2014	'	-43,250
Common stock acquired by Employee Stock Ownership Plan ("ESOP")	-13,075	-3,480
Accumulated other comprehensive loss	-387	-315
Stock held by Rabbi Trust	'	-267
Total Stockholders' Equity	357,693	194,137
Total Liabilities and Stockholders' Equity	$1,211,527	$1,265,990

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Parenthetical) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Securities held to maturity, fair value	$445,557	$421,064
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	85,000,000	75,000,000
Common stock, shares issued	26,676,198	30,530,470
Common stock, shares outstanding	26,676,198	26,528,999
Treasury stock, shares	0	4,001,471

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest Income:	'	'	'	'
Loans	$5,799	$5,150	$11,475	$9,962
Mortgage-backed securities	2,339	2,546	4,704	5,330
Debt securities	666	573	1,256	1,123
Other interest-earning assets	95	41	176	82
Total Interest Income	8,899	8,310	17,611	16,497
Interest Expense:	'	'	'	'
Deposits	1,725	2,000	3,442	4,042
Advances	592	514	1,186	986
Total Interest Expense	2,317	2,514	4,628	5,028
Net Interest Income	6,582	5,796	12,983	11,469
Provision for loan losses	301	356	439	536
Net Interest Income after Provision for Loan Losses	6,281	5,440	12,544	10,933
Non-Interest Income:	'	'	'	'
Fees and service charges	72	60	124	119
Bank owned life insurance	300	260	595	518
Gain on sale of securities	102	'	102	566
Other	'	1	1	1
Total Non-Interest Income	474	321	822	1,204
Non-Interest Expenses:	'	'	'	'
Salaries and employee benefits	2,425	2,040	4,850	4,089
Occupancy expense of premises	363	397	748	777
Equipment	455	305	758	612
Directors' compensation	373	211	585	439
Advertising	63	47	116	151
Legal	57	37	137	74
Federal deposit insurance premium	126	125	283	243
Other	670	462	1,192	912
Total Non-Interest Expenses	4,532	3,624	8,669	7,297
Income before Income Taxes	2,223	2,137	4,697	4,840
Income Taxes	744	732	1,596	1,687
Net Income	$1,479	$1,405	$3,101	$3,153
Net Income per Common Share:	'	'	'	'
Basic	$0.06	$0.06	$0.12	$0.12
Diluted	$0.06	$0.05	$0.12	$0.12
Dividends per common share	$0.06	$0.06	$0.18	$0.12
Weighted Average Number of Common Shares and Common Stock Equivalents Outstanding:	'	'	'	'
Basic	25,333,350	25,308,317	25,288,801	25,293,736
Diluted	25,521,484	25,555,907	25,467,460	25,532,410

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended				6 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]	'		'		'		'
Net income	$1,479		$1,405		$3,101		$3,153
Other comprehensive income (loss):	'		'		'		'
Gross unrealized holding gain (loss) on securities available for sale, net of income (taxes) benefit of $45, $(5), $20 and $81, respectively	-66		5		-29		-118
Reclassification adjustment for net realized gains on securities available for sale, net of income taxes of $42, $0, $42 and $120, respectively	-60	[1]	'		-60	[1]	-175	[1]
Benefit plan amortization, net of income (taxes) of $(6), $(9), $(12) and $(18), respectively	9	[2]	14	[2]	17	[2]	26	[2]
Total other comprehensive (loss) income	-117		19		-72		-267
Total comprehensive income	$1,362		$1,424		$3,029		$2,886
[1]	Net realized gain and related income taxes are included in the consolidated statements of income within the gain on sale of securities and income taxes lines, respectively.
[2]	Benefit plan amounts represent the amortization of past service cost and unrecognized net loss; such amounts are included in the consolidated statements of income within the directors' compensation line. The related income tax amounts are included in the income taxes.

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]	'	'	'	'
Gross unrealized holding gain (loss) on securities available for sale, income (taxes) benefit	$45	($5)	$20	$81
Reclassification adjustment for net realized gains on securities available for sale, income taxes	42	0	42	120
Benefit plan amortization, income (taxes)	($6)	($9)	($12)	($18)

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Paid-In Capital [Member]	Deferred Compensation Obligation Under Rabbi Trust [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Common Stock Acquired by ESOP [Member]	Accumulated Other Comprehensive (Loss) [Member]	Stock Held by Rabbi Trust [Member]
In Thousands, except Share data
Beginning Balance at Mar. 31, 2014	$194,137	$305	$136,688	$346	$104,110	($43,250)	($3,480)	($315)	($267)
Beginning Balance, Shares at Mar. 31, 2014	'	26,528,999	'	'	'	'	'	'	'
Net income	3,101	'	'	'	3,101	'	'	'	'
Other comprehensive loss, net of income tax	-72	'	'	'	'	'	'	-72	'
ESOP shares committed to be released	775	'	134	'	'	'	641	'	'
Stock option expense	11	'	11	'	'	'	'	'	'
Forfeited restricted stock awards	'	'	'	'	'	'	'	'	'
Forfeited restricted stock awards, Shares	'	-1,175	'	'	'	'	'	'	'
Repurchase restricted stock awards	-11	'	-11	'	'	'	'	'	'
Repurchase restricted stock awards, Shares	'	-887	'	'	'	'	'	'	'
Restricted stock awards earned	24	'	24	'	'	'	'	'	'
Funding of Supplemental Executive Retirement Plan	103	'	'	128	'	'	'	'	-25
Supplemental Executive Retirement Plan distribution	-17	'	'	-309	'	'	'	'	292
Tax benefit from stock based compensation	79	'	79	'	'	'	'	'	'
Exercise of stock options	895	1	894	'	'	'	'	'	'
Exercise of stock options, Shares	'	86,111	'	'	'	'	'	'	'
Cash dividends declared ($0.18 per share)	-4,544	'	'	'	-4,544	'	'	'	'
Second-step conversion and stock offering, net of offering expenses	163,212	-39	130,237	'	'	43,250	-10,236	'	'
Second-step conversion and stock offering, net of offering expenses, Shares	'	63,150	'	'	'	'	'	'	'
Ending Balance at Sep. 30, 2014	$357,693	$267	$268,056	$165	$102,667	'	($13,075)	($387)	'
Ending Balance, Shares at Sep. 30, 2014	'	26,676,198	'	'	'	'	'	'	'

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Stockholders' Equity [Abstract]	'	'	'	'
Dividends per common share	$0.06	$0.06	$0.18	$0.12

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$3,101	$3,153
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization of premises and equipment	297	323
Net amortization (accretion) of deferred fees and costs, premiums and discounts	172	33
Provision for loan losses	439	536
Realized gain on sale of securities available for sale	-102	-295
Realized gain on sale of securities held to maturity	'	-271
Loss on write-down of real estate owned	'	11
Loss on sale of real estate owned	7	'
Increase in interest receivable	-244	-89
Deferred income tax (benefit)	-92	-407
Decrease in other assets	1,006	597
(Decrease) increase in accrued interest payable	-8	41
(Decrease) increase in other liabilities	-674	320
Increase in cash surrender value of bank owned life insurance	-594	-518
ESOP shares committed to be released	775	446
Restricted stock expense	24	31
Stock option expense	11	25
Deferred compensation obligation under Rabbi Trust	86	11
Net cash provided by operating activities	4,204	3,947
Proceeds from calls, maturities and repayments of:	'	'
Securities available for sale	631	6,358
Securities held for maturity	53,625	56,728
Proceeds from sale of securities available for sale	1,022	4,659
Proceeds from sale of securities held to maturity	'	5,579
Redemptions of Federal Home Loan Bank of New York stock	1,751	58
Purchases of:	'	'
Securities available for sale	-12,303	'
Securities held for maturity	-75,448	-54,303
Loans receivable	-29,117	-50,171
Premises and equipment	-239	-79
Federal Home Loan Bank of New York stock	-128	-1,800
Proceeds from sale of real estate owned	117	'
Net increase in loans receivable	-4,011	-48,133
Net cash (used in) investing activities	-64,100	-81,104
Cash flows from financing activities:	'	'
Net (decrease) increase in deposits	-32,842	27,695
Net (decrease) increase in short-term advances from Federal Home Loan Bank of New York	-30,000	15,000
Proceeds from long-term advances from Federal Home Loan Bank of New York	'	25,000
Net (decrease) increase in payments by borrowers for taxes and insurance	-150	584
Net proceeds from stock offering	8,867	'
Repurchase restricted stock award	-11	'
Exercise of stock options	895	827
Dividends paid	-4,544	-3,097
Purchase of treasury stock	'	-15
Income tax benefit from stock based compensation	79	79
Net cash (used in) provided by financing activities	-57,706	66,073
Net (decrease) in cash and cash equivalents	-117,602	-11,084
Cash and cash equivalents-beginning	192,581	25,896
Cash and cash equivalents-ending	74,979	14,812
Cash paid during the period for:	'	'
Interest on deposits and borrowings	4,636	4,987
Income taxes paid	2,574	2,147
Non cash activities:	'	'
Amounts due to brokers for security purchase	'	-3,050
Transfer from loans receivable to real estate owned	124	201
Issuance of common stock funded by stock subscriptions received prior to April 1, 2014	$154,345	'

Basis_of_Presentation

Basis of Presentation	6 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	1. BASIS OF PRESENTATION
	Clifton Bancorp Inc. (the “Company”) is a Maryland corporation incorporated in November 2013 to be the successor to Clifton Savings Bancorp, Inc. (“Clifton Savings Bancorp”) upon completion of the second-step conversion of Clifton Savings Bank (the “Bank”) from the two-tier mutual holding company structure to the stock holding company structure. Clifton MHC was the former mutual holding company for Clifton Savings Bancorp prior to completion of the second-step conversion and owned 16,791,758 shares or approximately 64%, of the outstanding shares of common stock of Clifton Savings Bancorp prior to the second-step conversion. In conjunction with the second-step conversion, Clifton MHC merged into Clifton Savings Bancorp (and ceased to exist), and Clifton Savings Bancorp merged into the Company, with the Company as the surviving entity. The second-step conversion was completed on April 1, 2014, at which time the Company sold, for net proceeds of $163.2 million, a total of 17,059,448 shares of common stock at $10.00 per share, including 1,023,566 shares purchased by the Clifton Savings Bank Employee Stock Ownership Plan. As part of the second-step conversion, each of the existing 9,737,241 outstanding shares of Clifton Savings Bancorp common stock owned by persons other than Clifton MHC was converted into 0.9791 of a share of Company common stock. As a result of the second-step conversion, all share information has been subsequently revised to reflect the 0.9791 exchange ratio.
	The consolidated financial statements include the accounts of the Company, the Company’s wholly-owned subsidiary, Clifton Savings Bank (the “Bank”), and the Bank’s wholly-owned subsidiary, Botany Inc. (“Botany”). Because the Bank’s second-step conversion was completed on April 1, 2014, all financial and other information before that date that is included in this Quarterly Report on Form 10-Q is derived from the consolidated financial statements of Clifton Savings Bancorp. The Company’s business consists principally of investing in securities and the operations of the Bank. Botany’s business consists solely of holding investment and mortgage-backed securities, and Botany is treated under New Jersey tax law as a New Jersey investment company. All significant intercompany accounts and transactions have been eliminated in consolidation.
	The accompanying unaudited consolidated financial statements were prepared in accordance with the instructions for Form 10-Q and Regulation S-X and do not include information or footnotes necessary for a complete presentation of financial condition, results of operations, or cash flows in conformity with accounting principles generally accepted in the United States of America. However, in the opinion of management, all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the consolidated financial statements have been included. The results of operations for the six month period ended September 30, 2014 are not necessarily indicative of the results which may be expected for the entire fiscal year or any other period. The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reported periods. Actual results could differ from those estimates. These consolidated financial statements should be read in conjunction with the Clifton Savings Bancorp’s audited consolidated financial statements and related notes thereto for the year ended March 31, 2014, which are included in the Company’s Annual Report on Form 10-K as filed with the Securities and Exchange Commission on June 6, 2014.
	The Company has evaluated events and transactions occurring subsequent to the statement of financial condition date of September 30, 2014 for items that should potentially be recognized or disclosed in these consolidated financial statements. The evaluation was conducted through the date these consolidated financial statements were issued.

Earnings_Per_Share_EPS

Earnings Per Share (EPS)	6 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share (EPS)	'
	2. EARNINGS PER SHARE (EPS)
	Basic EPS is based on the weighted average number of common shares actually outstanding, and is adjusted for employee stock ownership plan shares not yet committed to be released and deferred compensation obligations required to be settled in shares of Company stock. Unvested restricted stock awards, which contain rights to non-forfeitable dividends, are considered participating securities and the two-class method of computing basic and diluted EPS is applied. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock, such as outstanding stock options, were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the Company. Diluted EPS is calculated by adjusting the weighted average number of shares of common stock outstanding to include the effect of contracts or securities exercisable (such as stock options) or which could be converted into common stock, if dilutive, using the treasury stock method. Basic and diluted EPS have been determined based on the adjusted numbers of weighted average shares. The calculation of diluted EPS for the three and six months ended September 30, 2014 includes 188,134 and 178,659 incremental shares, respectively, related to outstanding stock options. The calculation of diluted EPS for the three and six months ended September 30, 2013 includes 247,590 and 238,674 incremental shares, respectively, related to outstanding stock options. As a result of the second-step conversion, the 2013 period shares were adjusted to reflect the 0.9791 exchange ratio. Shares issued or retired during any period are weighted for the portion of the period they were outstanding. During the three and six months ended September 30, 2014 and 2013, no options were antidilutive.

Retirement_PlanComponents_of_N

Retirement Plan-Components of Net Periodic Pension Cost	6 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Retirement Plan-Components of Net Periodic Pension Cost	'
	3. RETIREMENT PLAN-COMPONENTS OF NET PERIODIC PENSION COST
	Periodic pension expense for the directors’ retirement plan and a former president’s post-retirement health care plan were as follows:
		Three Months Ended				Six Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(In Thousands)
	Service cost	$	44	$	40	$	89	$	80
	Interest cost		30		35		60		70
	Amortization of unrecognized net loss		5		12		9		24
	Amortization of past service cost		10		10		20		20
	Settlement charge		171		—		171		—
	Net periodic benefit cost	$	260	$	97	$	349	$	194

Securities

Securities	6 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Securities	'
	4. SECURITIES
	The amortized cost, gross unrealized gains and losses and estimated fair value of securities available for sale and held to maturity for the dates indicated are as follows:
		September 30, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Available for sale:
	Debt securities:
	Government-sponsored enterprises	$	5,000	$	—	$	3	$	4,997
	Mortgage-backed securities:
	Federal National Mortgage Association		9,171		66		40		9,197
	Total available for sale securities	$	14,171	$	66	$	43	$	14,194
		March 31, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Available for sale:
	Mortgage-backed securities:
	Federal National Mortgage Association	$	3,425	$	174	$	—	$	3,599
	Total available for sale securities	$	3,425	$	174	$	—	$	3,599
		September 30, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Held to maturity:
	Debt securities:
	Government-sponsored enterprises	$	84,887	$	246	$	302	$	84,831
	Corporate bonds		45,011		1,202		—		46,213
	Municipal bonds		19,188		6		3		19,191
			149,086		1,454		305		150,235
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		72,609		2,701		729		74,581
	Federal National Mortgage Association		199,508		4,027		3,225		200,310
	Governmental National Mortgage Association		19,198		1,317		84		20,431
			291,315		8,045		4,038		295,322
	Total held to maturity securities	$	440,401	$	9,499	$	4,343	$	445,557
		March 31, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Held to maturity:
	Debt securities:
	Government-sponsored enterprises	$	69,938	$	244	$	152	$	70,030
	Corporate bonds		49,981		1,536		—		51,517
			119,919		1,780		152		121,547
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		79,158		2,599		1,407		80,350
	Federal National Mortgage Association		198,798		3,560		5,203		197,155
	Governmental National Mortgage Association		20,821		1,313		122		22,012
			298,777		7,472		6,732		299,517
	Total held to maturity securities	$	418,696	$	9,252	$	6,884	$	421,064
	Contractual maturity data for securities are as follows:
		September 30, 2014
		Amortized		Fair
		Cost		Value
		(In Thousands)
	Available for sale:
	Debt securities:
	Due after one but within five years	$	5,000	$	4,997
Mortgage-backed securities:
Due after five through ten years		2,395		2,366
Due after ten years		6,776		6,831
		9,171		9,197
Total available for sale securities	$	14,171	$	14,194
Held to maturity:
Debt securities:
Due less than one year	$	17,430	$	17,431
Due after one through five years		100,384		101,256
Due after five through ten years		25,498		25,818
Due after ten years		5,774		5,730
		149,086		150,235
Mortgage-backed securities:
Due after one through five years		12,461		12,459
Due after five through ten years		74,011		72,150
Due after ten years		204,843		210,713
		291,315		295,322
Total held to maturity securities	$	440,401	$	445,557
The amortized cost and carrying values shown above are by contractual final maturity. Actual maturities will differ from contractual final maturities due to scheduled monthly payments related to mortgage-backed securities and due to the borrowers having the right to prepay obligations with or without prepayment penalties. The Company’s mortgage-backed securities are generally secured by residential mortgage loans with contractual maturities of 15 years or greater, and multi-family loans with maturities of five to ten years. However, the effective lives of those securities are generally shorter than their contractual maturities due to principal amortization and prepayment of the loans within those securities. Investors in pass-through securities generally share in the receipt of principal repayments on a pro-rata basis as paid by the borrowers.
The age of gross unrealized losses and the fair value of related securities at September 30 and March 31, 2014 were as follows:
	Less Than 12 Months				12 Months or More				Total
September 30, 2014:	Fair Value		Gross		Fair Value		Gross		Fair Value		Gross
			Unrealized				Unrealized				Unrealized
			Losses				Losses				Losses
	(In Thousands)
Available for sale:
Debt securities:
Government-sponsored enterprises	$	4,997	$	3	$	—	$	—	$	4,997	$	3
Mortgage-backed securities:
Federal National Mortgage Association		6,970		40		—		—		6,970		40
Total available for sale securities	$	11,967	$	43	$	—	$	—	$	11,967	$	43
Held to maturity:
Debt securities:
Municipal bonds	$	7,081	$	3	$	—	$	—	$	7,081	$	3
Government-sponsored enterprises		64,651		236		4,935		66		69,586		302
		71,732		239		4,935		66		76,667		305
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation		—		—		23,256		729		23,256		729
Federal National Mortgage Association		7,732		102		103,553		3,123		111,285		3,225
Government National Mortgage Association		—		—		1,478		84		1,478		84
		7,732		102		128,287		3,936		136,019		4,038
Total held to maturity securities	$	79,464	$	341	$	133,222	$	4,002	$	212,686	$	4,343
	Less Than 12 Months				12 Months or More				Total
31-Mar-14	Fair Value		Gross		Fair Value		Gross		Fair Value		Gross
			Unrealized				Unrealized				Unrealized
			Losses				Losses				Losses
	(In Thousands)
Held to maturity:
Debt securities:
Government-sponsored enterprises	$	39,787	$	152	$	—	$	—	$	39,787	$	152
Mortgage-backed securities:
Federal Home Loan Mortgage Corporation		33,882		1,405		169		2		34,051		1,407
Federal National Mortgage Association		105,693		4,546		10,473		657		116,166		5,203
Government National Mortgage Association		—		—		1,461		122		1,461		122
		139,575		5,951		12,103		781		151,678		6,732
Total held to maturity securities	$	179,362	$	6,103	$	12,103	$	781	$	191,465	$	6,884
Management does not believe that any of the unrealized losses at September 30, 2014 (fifteen bonds of Government-sponsored enterprises and six municipal bonds included in debt securities, and thirty-five FNMA mortgage-backed securities, eight FHLMC mortgage-backed securities, and one GNMA mortgage-backed security) represent an other-than-temporary impairment as they are primarily related to market interest rates and not related to the underlying credit quality of the issuers of the securities. Additionally, the Company and its subsidiaries have the ability, and management has the intent, to hold such securities for the time necessary to recover amortized cost and does not have the intent to sell the securities, and it is more likely than not that it will not have to sell the securities before recovery of their amortized cost.
During the six months ended September 30, 2014, the proceeds from the sale of a security available for sale totaled $1.0 million, resulting in a gross realized gain of $102,000. During the six months ended September 30, 2013, the proceeds from sales of securities available for sale totaled $4.7 million and the proceeds from sales of securities held to maturity totaled $5.6 million, resulting in gross realized gains of $295,000 and $272,000, respectively, and gross realized losses of $-0- and $1,000, respectively. The remaining principal balance for each of the securities held to maturity sold was less than 15% of the original principal purchased.

Loans_Receivable_and_Allowance

Loans Receivable and Allowance for Loan Losses	6 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loans Receivable and Allowance for Loan Losses	'
	5. LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES
	The following is a summary of loans by segment and the classes within those segments:
			September 30,			March 31,
			2014			2014
			(In Thousands)
	Real estate:
	One- to four-family		$	538,774		$	526,670
	Multi-family			34,380			21,565
	Commercial			33,092			25,156
	Construction			388			553
				606,634			573,944
	Consumer:
	Second mortgage			8,097			8,661
	Passbook or certificate			654			758
	Equity lines of credit			2,405			2,255
	Other loans			70			60
				11,226			11,734
	Total Loans			617,860			585,678
	Loans in process			(88	)		(207	)
	Net purchase premiums, discounts, and deferred loan costs			2,502			2,107
				2,414			1,900
	Total Loans, Net		$	620,274		$	587,578
	The allowance for loan losses consists of general and unallocated components. For loans that are classified as impaired, a valuation allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The general component of the allowance covers pools of loans by loan class not considered impaired, as well as smaller balance homogeneous loans, such as one- to four-family real
	estate, construction real estate, second mortgage loans, home equity lines of credit and passbook loans. These pools of loans are evaluated for loss exposure based upon historical loss rates for each of these categories of loans, adjusted for qualitative factors to reflect current conditions. The qualitative risk factors which include:
	1	Lending policies and procedures, including underwriting standards and collection, charge-off, and recovery practices.
	2	National, regional, and local economic and business conditions, including the value of underlying collateral for collateral dependent loans.
	3	Nature and volume of the portfolio and terms of loans.
	4	Experience, ability, and depth of lending management and staff.
	5	The quality of the Bank’s loan review system.
	6	Volume and severity of past due, classified and nonaccrual loans.
	7	Existence and effect of any concentrations of credit and changes in the level of such concentrations.
	8	Effect of external factors, such as competition and legal and regulatory requirements.
	Each factor is assigned a value to reflect improving, stable or declining conditions based on management’s best judgment using relevant information available at the time of the evaluation. Adjustments to the factors are supported through documentation of changes in conditions in a narrative accompanying the allowance for loan loss calculation.
	An unallocated component is maintained to cover uncertainties that could affect management’s estimate of probable losses. The unallocated component of the allowance reflects the margin of imprecision inherent in the underlying assumptions used in the methodologies for estimating losses in the portfolio.
	The evaluation of the adequacy of the allowance is based on an analysis which categorizes the entire loan portfolio by certain risk characteristics. The loan portfolio segments are further disaggregated into the following loan classes, where the risk level for each type is analyzed when determining the allowance for loan losses.
	Real Estate:
	1. One- to Four-Family Loans—consists of loans secured by first liens on either owner occupied or investment properties. These loans can be affected by economic conditions and the value of the underlying properties. The risk is considered relatively low as the Bank has always had conservative underwriting standards and does not have sub-prime loans in its loan portfolio.
	2. Multi-Family Loans—consists of loans secured by multi-family real estate which generally involve a greater degree of risk than one- to four-family residential mortgage loans. These loans can be affected by economic conditions and the value of the underlying properties. The risk is considered relatively low as the Bank believes it has always had conservative underwriting standards.
	3. Commercial Loans—consists of loans secured by commercial real estate which generally involve a greater degree of risk than one- to four-family residential mortgage loans. These loans can be affected by economic conditions and the value of the underlying properties. The risk is considered relatively low as the Bank believes it has always had conservative underwriting standards. These loans are affected by economic conditions to a greater degree than one- to four-family and multi-family loans.
	4. Construction Loans—consists primarily of the financing of construction of one- to four-family properties or construction/permanent loans for the construction of one- to four-family homes to be occupied by the borrower. Construction loans generally are considered to involve a higher degree of risk of loss than long-term financing on improved, occupied real estate due to uncertainty of construction costs. Independent inspections are performed prior to disbursement of loan proceeds as construction progresses to mitigate these risks. These loans are also affected by economic conditions.
	Consumer:
	1. Second Mortgage and Equity Lines of Credit—consists of one- to four-family loans secured by first, second or third liens (when the Bank has the two other lien positions) or, in one instance, a commercial property. These loans are affected by the borrower’s continuing financial stability, and therefore are more likely to be adversely affected by job loss, divorce, illness or personal bankruptcy. The credit risk is considered slightly higher than one- to four-family first lien loans as these loans are also dependent on the value of underlying properties, but in many instances, have the added risk of a subordinate collateral position.
	2. Passbook or Certificate and Other Loans—consists of loans secured by passbook accounts and certificates of deposits and unsecured loans. The passbook or certificate loans have low credit risk as they are fully secured by their collateral. Unsecured loans, included in other loans, are two loans in a New Jersey loan fund and they also are considered a low credit risk.
	The allowance calculation methodology includes further segregation of loan classes into risk rating categories. The borrower’s overall financial condition, repayment sources, guarantors and value of collateral, if appropriate, are evaluated when credit deficiencies arise, such as delinquent loan payments. Credit quality risk ratings include regulatory classifications of special mention, substandard, doubtful and loss. Loans classified as special mention have potential weaknesses that deserve management’s close attention. If uncorrected, the potential weaknesses may result in deterioration of the repayment prospects. Loans classified as substandard have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They include loans that are inadequately protected by the current sound net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans classified as doubtful have all the weaknesses inherent in loans classified as substandard with the added characteristic that collection or liquidation in full, on the basis of current conditions and facts, is highly improbable. Loans classified as a loss are considered uncollectible and are charged to the allowance for loan losses. Non-classified assets are rated as a pass or pass-watch. Pass-watch loans require current oversight or tracking by management generally due to incomplete documentation or monitoring due to previous delinquent status.
	In addition, the Office of the Comptroller of the Currency (the “OCC”), as an integral part of its examination process, periodically reviews the Bank’s loan portfolio and the related allowance for loan losses. The OCC may require the allowance for loan losses to be increased based on its review of information available at the time of the examination.
	The change in the allowance for loan losses for the three and six months ended September 30, 2014 and 2013 is as follows:
			One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
			Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
			Real Estate											Equity Lines			and Other
														of Credit			Loans
			(In Thousands)
	At June 30, 2014:
	Total allowance for loan losses		$	2,520		$	247		$	266	$	2		$	43		$	1		$	46		$	3,125
	Charge-offs			(176	)		—			—		—			—			—			—			(176	)
	Recoveries			—			—			—		—			—			—			—			—
	Provision charged to operations			216			43			38		—			1			(1	)		4			301
	At September 30, 2014:
	Total allowance for loan losses		$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
			One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
			Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
			Real Estate											Equity Lines			and Other
														of Credit			Loans
			(In Thousands)
At March 31, 2014:
Total allowance for loan losses		$	2,460		$	186		$	224	$	2		$	45		$	1		$	153		$	3,071
Charge-offs			(260	)		—			—		—			—			—			—			(260	)
Recoveries			—			—			—		—			—			—			—			—
Provision charged to operations			360			104			80		—			(1	)		(1	)		(103	)		439
At September 30, 2014:
Total allowance for loan losses		$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
At June 30, 2013:
Total allowance for loan losses		$	2,163		$	229		$	128	$	4		$	50		$	1		$	65		$	2,640
Charge-offs			(46	)		—			—		—			—			—			—			(46	)
Recoveries			—			—			—		—			—			—			—			—
Provision charged to operations			323			7			37		(1	)		(1	)		(1	)		(8	)		356
At September 30, 2013:
Total allowance for loan losses		$	2,440		$	236		$	165	$	3		$	49		$	—		$	57		$	2,950
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
At March 31, 2013:
Total allowance for loan losses		$	2,127		$	187		$	99	$	5		$	38		$	1		$	43		$	2,500
Charge-offs			(91	)		—			—		—			—			—			—			(91	)
Recoveries			5			—			—		—			—			—			—			5
Provision charged to operations			399			49			66		(2	)		11			(1	)		14			536
At September 30, 2013:
Total allowance for loan losses		$	2,440		$	236		$	165	$	3		$	49		$	—		$	57		$	2,950
The following table presents the allocation of the allowance for loan losses and related loans by loan class at September 30 and March 31, 2014.
September 30, 2014		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
Allowance for loan losses:
Individually evaluated for impairment		$	—		$	—		$	—	$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment			2,560			290			304		2			44			—			50			3,250
Total		$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
Loans:
Individually evaluated for impairment		$	704		$	206		$	443	$	—		$	—		$	—		$	—		$	1,353
Collectively evaluated for impairment			538,070			34,174			32,649		388			10,502			724			—			616,507
Total		$	538,774		$	34,380		$	33,092	$	388		$	10,502		$	724		$	—		$	617,860
March 31, 2014		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
Allowance for loan losses:
Individually evaluated for impairment		$	—		$	—		$	—	$	—		$	—		$	—		$	—		$	—
Collectively evaluated for impairment			2,460			186			224		2			45			1			153			3,071
Total		$	2,460		$	186		$	224	$	2		$	45		$	1		$	153		$	3,071
Loans:
Individually evaluated for impairment		$	387		$	208		$	247	$	—		$	—		$	—		$	—		$	842
Collectively evaluated for impairment			526,283			21,357			24,909		553			10,916			818			—			584,836
Total		$	526,670		$	21,565		$	25,156	$	553		$	10,916		$	818		$	—		$	585,678
The aggregate amount of classified loan balances are as follows at September 30 and March 31, 2014:
September 30, 2014		One- to			Multi-family			Commercial		Construction			Second			Passbook			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			or			Loans
		Real Estate											Equity Lines			Certificate
													of Credit			and Other
																Loans
		(In Thousands)
Non-classified:		$	532,717		$	34,380		$	32,649	$	388		$	10,441		$	724		$	611,299
Classified:
Special mention			1,945			—			—		—			24			—			1,969
Substandard			4,112			—			443		—			37			—			4,592
Doubtful			—			—			—		—			—			—			—
Loss			—			—			—		—			—			—			—
Total loans		$	538,774		$	34,380		$	33,092	$	388		$	10,502		$	724		$	617,860
31-Mar-14		One- to			Multi-family			Commercial		Construction			Second			Passbook			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			or			Loans
		Real Estate											Equity Lines			Certificate
													of Credit			and Other
																Loans
		(In Thousands)
Non-classified:		$	520,172		$	21,565		$	24,909	$	553		$	10,848		$	818		$	578,865
Classified:
Special mention			1,322			—			—		—			31			—			1,353
Substandard			5,176			—			247		—			37			—			5,460
Doubtful			—			—			—		—			—			—			—
Loss			—			—			—		—			—			—			—
Total loans		$	526,670		$	21,565		$	25,156	$	553		$	10,916		$	818		$	585,678
The following table provides information with respect to the Bank’s nonaccrual loans at September 30 and March 31, 2014. Loans are generally placed on nonaccrual status when they become more than 90 days delinquent, or when the collection of principal and, or interest become doubtful. Nonaccrual loans differed from the amount of total loans past due greater than 90 days due to some previously delinquent loans that are currently not more than 90 days delinquent which are maintained on nonaccrual status for a minimum of six months until the borrower has demonstrated the ability to satisfy the loan terms. A loan is returned to accrual status when there is sustained period of repayment performance (generally six months) by the borrower in accordance with the contractual terms of the loan, or in some circumstances, when the factors indicating doubtful collectability no longer exist and the Bank expects repayment of the remaining contractual amounts due.
		September 30,			March 31,
		2014			2014
		(In Thousands)
Nonaccrual loans:
Real estate loans:
One- to four-family		$	4,029		$	4,848
Commercial			443			247
Consumer and other loans:
Second mortgage			37			37
Total nonaccrual loans		$	4,509		$	5,132
The following table provides information about delinquencies in the Bank’s loan portfolio at September 30 and March 31, 2014.
September 30, 2014		30-59			60-89			90 Days		Total			Current			Total
		Days			Days			or More		Past Due						Gross
		Past Due			Past Due			Past Due								Loans
		(In Thousands)
Real estate loans:
One- to four-family		$	2,132		$	560		$	2,276	$	4,968		$	533,806		$	538,774
Multi-family			—			—			—		—			34,380			34,380
Commercial			—			—			443		443			32,649			33,092
Construction			—			—			—		—			388			388
Consumer and other loans:
Second mortgage and equity lines of credit			51			6			37		94			10,408			10,502
Passbook or certificate and other loans			—			—			—		—			724			724
Total		$	2,183		$	566		$	2,756	$	5,505		$	612,355		$	617,860
March 31, 2014		30-59			60-89			90 Days		Total			Current			Total
		Days			Days			or More		Past Due						Gross
		Past Due			Past Due			Past Due								Loans
		(In Thousands)
Real estate loans:
One- to four-family		$	2,278		$	914		$	2,150	$	5,342		$	521,328		$	526,670
Multi-family			—			—			—		—			21,565			21,565
Commercial			—			—			247		247			24,909			25,156
Construction			—			—			—		—			553			553
Consumer and other loans:
Second mortgage and equity lines of credit			24			—			37		61			10,855			10,916
Passbook or certificate and other loans			—			—			—		—			818			818
Total		$	2,302		$	914		$	2,434	$	5,650		$	580,028		$	585,678
There were no loans that are past due greater than 90 days that were accruing as of September 30 and March 31, 2014.
A loan is defined as impaired when, based on current information and events, it is probable that a creditor will be unable to collect all amounts due under the contractual terms of the loan agreement. The Company considers one- to four-family mortgage loans and consumer installment loans to be homogeneous and, therefore, does not generally evaluate them individually for impairment, unless they are considered troubled debt restructurings. All other loans are evaluated for impairment on an individual basis.
Impaired loans, none of which had a related allowance at or for the three and six months ending September 30, 2014 and 2013, and at or for the year ended March 31, 2014, were as follows:
At or For The Three Months Ended September 30, 2014		Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
With no related allowance recorded:
Real estate loans:
One- to four-family		$	704		$	880		$	677	$	7
Multi-family			206			232			206		4
Commercial			443			443			295		3
Total impaired loans		$	1,353		$	1,555		$	1,178	$	14
At or For The Three Months Ended September 30, 2013		Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
With no related allowance recorded:
Real estate loans:
One- to four-family		$	317		$	490		$	317	$	4
Commercial			249			249			250		2
Total impaired loans		$	566		$	739		$	567	$	6
At or For The Six Months Ended September 30, 2014		Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
With no related allowance recorded:
Real estate loans:
One- to four-family		$	704		$	880		$	632	$	9
Multi-family			206			232			207		10
Commercial			443			443			274		6
Total impaired loans		$	1,353		$	1,555		$	1,113	$	25
At or For The Six Months Ended September 30, 2013		Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
With no related allowance recorded:
Real estate loans:
One- to four-family		$	317		$	490		$	407	$	9
Commercial			249			249			250		6
Total impaired loans		$	566		$	739		$	657	$	15
At or For The Year Ended March 31, 2014		Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
With no related allowance recorded:
Real estate loans:
One- to four-family		$	387		$	558		$	376	$	17
Multi-family			208			235			80		7
Commercial			247			247			249		12
Total impaired loans		$	842		$	1,040		$	705	$	36
The recorded investment in loans modified in a troubled debt restructuring totaled $721,000 and $523,000, respectively, at September 30 and March 31, 2014, of which $7,000 and $8,000, respectively, were 90 days or more past due. The remaining loans modified were current at the time of the restructuring and have complied with the terms of their restructure agreements at September 30 and March 31, 2014. Loans that were modified in a troubled debt restructuring represent concessions made to borrowers experiencing financial difficulties. The Bank works with these borrowers to modify existing loan terms usually by extending maturities or reducing interest rates. The Bank records an impairment loss, if any, based on the present value of expected future cash flows discounted at the original loan’s effective interest rate. Subsequently, these loans are individually evaluated for impairment.
The following table presents troubled debt restructurings by class during the periods indicated. There were no new troubled debt restructurings during the three months ended September 30, 2014.
		Number			Pre-restructuring			Post-restructuring		Charge-off
		of Loans			Outstanding			Outstanding		Recorded Upon
					Recorded			Recorded		Restructuring
					Investment			Investment
					(Dollar In Thousands)
Six Months Ended September 30, 2014
One- to Four-Family Real Estate			1		$	214		$	207	$	7
There were no new troubled debt restructurings which defaulted within twelve months of restructuring during the three and six months ended September 30, 2014. There were no new troubled debt restructurings or defaults on troubled debt restructurings that occurred within twelve months of restructuring during the three and six months ended September 30, 2013.

Fair_Value

Fair Value	6 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	6. FAIR VALUE
	Accounting guidance on fair value measurement establishes a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy describes three levels of inputs that may be used to measure fair value:
	Level 1: Quoted prices in active markets for identical assets or liabilities.
	Level 2: Observable inputs other than Level 1 prices, such as quoted for similar assets or liabilities; quoted prices in markets that are not active; or inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
	Level 3: Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.
	In addition, the guidance requires the Company to disclose the fair value for certain assets and liabilities on both a recurring and non-recurring basis.
	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 measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30 and March 31, 2014 are as follows:
	Description		Carrying		(Level 1)			(Level 2)		(Level 3)
			Value		Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical Assets			Inputs
			(In Thousands)
	September 30, 2014:
	Securities available for sale:
	Debt securities:
	Government-sponsored enterprises		$	4,997	$	—		$	4,997	$	—
	Mortgage-backed securities:
	Federal National Mortgage Association			9,197		—			9,197		—
	Total securities available for sale		$	14,194	$	—		$	14,194	$	—
	March 31, 2014:
	Securities available for sale:
	Mortgage-backed securities:
	Federal National Mortgage Association		$	3,599	$	—		$	3,599	$	—
	Total securities available for sale		$	3,599	$	—		$	3,599	$	—
	For assets measured at fair value on a non-recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, and March 31, 2014 are as follows:
	Description		Carrying		(Level 1)			(Level 2)		(Level 3)
			Value		Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical Assets			Inputs
			(In Thousands)
	September 30, 2014
	Impaired loans		$	117	$	—		$	—	$	117
	31-Mar-14
	Impaired loan		$	72	$	—		$	—	$	72
	There were no liabilities measured at fair value on a recurring or non-recurring basis at September 30 or March 31, 2014.
	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.
			Fair Value Estimate		Valuation		Unobservable	Range
					Techniques		Input	(Weighted Average)
			(Dollars in Thousand)
	September 30, 2014
	Impaired loans		$	117	Market valuation of underlying collateral (1)		Selling costs (2)	7%-12% (9%)
	March 31, 2014
	Impaired loan		$	72	Market valuation of underlying collateral (1)		Selling costs (2)	9% (9%)
	-1	Fair value is based on either contract sales prices or third party appraisals.
	-2	Includes estimated costs to sell.
	The following information should not be interpreted as an estimate of the fair value of the 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 certain of the Company’s assets and liabilities at September 30 and March 31, 2014.
	Cash and Cash Equivalents, Interest Receivable, Stock Subscription Deposits and Interest Payable (Carried at Cost)
	The carrying amounts reported in the consolidated statements of financial condition for cash and cash equivalents, interest receivable, stock subscription deposits and interest payable approximate their fair values.
	Securities
	The fair value of all securities, whether classified as available for sale (carried at fair value) or held to maturity (carried at amortized cost), is determined by reference to quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Securities are measured on a recurring basis. The fair values of these securities are obtained from prices received from an independent broker. The Company’s broker provides it with prices which are categorized as Level 2 since quoted prices in active markets for identical assets are generally not available. As the Company is responsible for the determination of fair value, it performs monthly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. The Company’s internal price verification procedures and review of fair value methodology documentation provided by third- party pricing services has not historically resulted in adjustment in the prices obtained from the pricing service.
	Loans Receivable (Carried at Cost)
	Fair value is estimated by discounting the future cash flows, using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities, of such loans.
	Impaired Loans (Carried based on Collateral Fair Value or Discounted Cash Flows)
	Impaired loans are those accounted for under ASC Topic 310 “Accounting by Creditors for Impairment of a Loan” in which the Company has measured impairment generally based on either the fair value of the loan’s collateral or discounted cash flows. These assets are included as Level 3 assets.
	Real Estate Owned
	Real estate owned, acquired through foreclosure or deed-in-lieu of foreclosure, is initially recorded at fair value less estimated costs to sell and subsequently carried at the lower of such initially recorded amount or current fair value less estimated selling costs. Fair value is estimated through current appraisals by licensed appraisers and as such, foreclosed real estate properties are classified as Level 3.
	Federal Home Loan Bank of New York Stock (Carried at Cost)
	Fair value approximates cost basis as these instruments are redeemable only with the issuing agency at face value.
	Deposits (Carried at Cost)
	The fair value of non-interest-bearing demand, Crystal Checking, NOW, Super NOW, Money Market and Savings and Club accounts is the amount payable on demand at the reporting date. For fixed-maturity certificates of deposit, fair value is estimated by discounting future cash flows using the rates currently offered for deposits of similar remaining maturities.
Advances from Federal Home Loan Bank of New York (Carried at Cost)
The fair value is estimated by discounting future cash flows using rates currently offered for liabilities of similar remaining maturities, or when available, quoted market prices.
Commitments to Extend Credit
The fair value of commitments to extend credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates.
As of September 30, and March 31, 2014, the fair value of the commitments to extend credit were not considered to be material.
The carrying amounts and fair values of financial instruments are as follows:
September 30, 2014		Carrying		Estimated			(Level 1)		(Level 2)		(Level 3)
		Value		Fair Value			Quoted Prices		Significant		Significant
							in Active		Other		Unobservable
							Markets for		Observable		Inputs
							Identical Assets		Inputs
		(In Thousands)
Financial assets:
Cash and cash equivalents		$	74,979	$	74,979		$	74,979	$	—	$	—
Securities available for sale			14,194		14,194			—		14,194		—
Securities held to maturity			440,401		445,557			—		445,557		—
Net loans receivable			617,024		612,684			—		—		612,684
Federal Home Loan Bank of New York stock			6,266		6,266			—		6,266		—
Interest receivable			3,525		3,525			—		3,525		—
Financial liabilities:
Deposits			731,070		734,986			—		734,986		—
FHLB advances			112,500		116,128			—		116,128		—
Interest payable			260		260			—		260		—
March 31, 2014		Carrying		Estimated			(Level 1)		(Level 2)		(Level 3)
		Value		Fair Value			Quoted Prices		Significant		Significant
							in Active		Other		Unobservable
							Markets for		Observable		Inputs
							Identical Assets		Inputs
		(In Thousands)
Financial assets:
Cash and cash equivalents		$	192,581	$	192,581		$	192,581	$	—	$	—
Securities available for sale			3,599		3,599			—		3,599		—
Securities held to maturity			418,696		421,064			—		421,064		—
Net loans receivable			584,507		584,131			—		—		584,131
Federal Home Loan Bank of New York stock			7,889		7,889			—		7,889		—
Interest receivable			3,281		3,281			—		3,281		—
Financial liabilities:
Deposits			763,912		768,233			—		768,233		—
FHLB advances			142,500		146,655			—		146,655		—
Stock subscription deposits			154,345		154,345			154,345		—		—
Interest payable			267		267			—		267		—

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	6 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
Recent Accounting Pronouncements	'
	7. RECENT ACCOUNTING PRONOUNCEMENTS
	On January 17, 2014, The Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, “Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40); Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans Upon Foreclosure.” The amendments in the ASU clarify when an in substance repossession or foreclosure occurs—that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan such that the loan receivable should be derecognized and the real estate property recognized. The new ASU requires a creditor to reclassify a collateralized consumer mortgage loan to real estate property upon obtaining legal title to the real estate collateral, or the borrower voluntarily conveying all interest in the real estate property to the lender to satisfy the loan through a deed in lieu of foreclosure or similar legal agreement. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2014. The adoption of this standard effective April 1, 2015 is not expected to have a material impact on the Company’s consolidated financial statements.
	On May 28, 2014, the FASB and International Accounting Standards Board (“IASB”) issued their final standard on revenue from contracts with customers. The standard, issued as ASU 2014-09 by the FASB and as IFRS 152 by the IASB, outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The goals of the revenue recognition project are to clarify and converge the revenue recognition principles under U.S. GAAP and IFRS and to develop guidance that would streamline and enhance revenue recognition requirements while also providing “a more robust framework for addressing revenue issues.” The boards believe that the standard will improve the consistency of requirements, comparability of revenue recognition practices, and usefulness of disclosures. The ASU is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2016. The adoption of this standard effective April 1, 2017 is not expected to have a material impact on the Company’s consolidated financial statements.

Fair_Value_Policies

Fair Value (Policies)	6 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	Accounting guidance on fair value measurement establishes a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy describes three levels of inputs that may be used to measure fair value:
	Level 1: Quoted prices in active markets for identical assets or liabilities.
	Level 2: Observable inputs other than Level 1 prices, such as quoted for similar assets or liabilities; quoted prices in markets that are not active; or inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.
	Level 3: Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.
Cash and Cash Equivalents, Interest Receivable, Stock Subscription Deposits and Interest Payable (Carried at Cost)	'
	Cash and Cash Equivalents, Interest Receivable, Stock Subscription Deposits and Interest Payable (Carried at Cost)
	The carrying amounts reported in the consolidated statements of financial condition for cash and cash equivalents, interest receivable, stock subscription deposits and interest payable approximate their fair values.
Securities	'
	Securities
	The fair value of all securities, whether classified as available for sale (carried at fair value) or held to maturity (carried at amortized cost), is determined by reference to quoted market prices, where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments. Securities are measured on a recurring basis. The fair values of these securities are obtained from prices received from an independent broker. The Company’s broker provides it with prices which are categorized as Level 2 since quoted prices in active markets for identical assets are generally not available. As the Company is responsible for the determination of fair value, it performs monthly analyses on the prices received from the pricing service to determine whether the prices are reasonable estimates of fair value. Specifically, the Company compares the prices received from the pricing service to a secondary pricing source. The Company’s internal price verification procedures and review of fair value methodology documentation provided by third- party pricing services has not historically resulted in adjustment in the prices obtained from the pricing service.
Loans Receivable (Carried at Cost)	'
	Loans Receivable (Carried at Cost)
	Fair value is estimated by discounting the future cash flows, using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities, of such loans.
Accounting by Creditors for Impairment of a Loan	'
	Impaired Loans (Carried based on Collateral Fair Value or Discounted Cash Flows)
	Impaired loans are those accounted for under ASC Topic 310 “Accounting by Creditors for Impairment of a Loan” in which the Company has measured impairment generally based on either the fair value of the loan’s collateral or discounted cash flows. These assets are included as Level 3 assets.
Real Estate Owned	'
	Real Estate Owned
	Real estate owned, acquired through foreclosure or deed-in-lieu of foreclosure, is initially recorded at fair value less estimated costs to sell and subsequently carried at the lower of such initially recorded amount or current fair value less estimated selling costs. Fair value is estimated through current appraisals by licensed appraisers and as such, foreclosed real estate properties are classified as Level 3.
Federal Home Loan Bank of New York Stock (Carried at Cost)	'
	Federal Home Loan Bank of New York Stock (Carried at Cost)
	Fair value approximates cost basis as these instruments are redeemable only with the issuing agency at face value.
Deposits (Carried at Cost)	'
	Deposits (Carried at Cost)
	The fair value of non-interest-bearing demand, Crystal Checking, NOW, Super NOW, Money Market and Savings and Club accounts is the amount payable on demand at the reporting date. For fixed-maturity certificates of deposit, fair value is estimated by discounting future cash flows using the rates currently offered for deposits of similar remaining maturities.
Advances from Federal Home Loan Bank of New York (Carried at Cost)	'
	Advances from Federal Home Loan Bank of New York (Carried at Cost)
	The fair value is estimated by discounting future cash flows using rates currently offered for liabilities of similar remaining maturities, or when available, quoted market prices.

Retirement_PlanComponents_of_N1

Retirement Plan-Components of Net Periodic Pension Cost (Tables)	6 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Periodic Pension Expense	'
	Periodic pension expense for the directors’ retirement plan and a former president’s post-retirement health care plan were as follows:
		Three Months Ended				Six Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
		(In Thousands)
	Service cost	$	44	$	40	$	89	$	80
	Interest cost		30		35		60		70
	Amortization of unrecognized net loss		5		12		9		24
	Amortization of past service cost		10		10		20		20
	Settlement charge		171		—		171		—
	Net periodic benefit cost	$	260	$	97	$	349	$	194

Securities_Tables

Securities (Tables)	6 Months Ended
	Sep. 30, 2014
Investments, Debt and Equity Securities [Abstract]	'
Available for Sale Securities and Held to Maturity Securities	'
	The amortized cost, gross unrealized gains and losses and estimated fair value of securities available for sale and held to maturity for the dates indicated are as follows:
		September 30, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Available for sale:
	Debt securities:
	Government-sponsored enterprises	$	5,000	$	—	$	3	$	4,997
	Mortgage-backed securities:
	Federal National Mortgage Association		9,171		66		40		9,197
	Total available for sale securities	$	14,171	$	66	$	43	$	14,194
		March 31, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Available for sale:
	Mortgage-backed securities:
	Federal National Mortgage Association	$	3,425	$	174	$	—	$	3,599
	Total available for sale securities	$	3,425	$	174	$	—	$	3,599
		September 30, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Held to maturity:
	Debt securities:
	Government-sponsored enterprises	$	84,887	$	246	$	302	$	84,831
	Corporate bonds		45,011		1,202		—		46,213
	Municipal bonds		19,188		6		3		19,191
			149,086		1,454		305		150,235
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		72,609		2,701		729		74,581
	Federal National Mortgage Association		199,508		4,027		3,225		200,310
	Governmental National Mortgage Association		19,198		1,317		84		20,431
			291,315		8,045		4,038		295,322
	Total held to maturity securities	$	440,401	$	9,499	$	4,343	$	445,557
		March 31, 2014
		Amortized		Gross		Gross		Fair
		Cost		Unrealized		Unrealized		Value
				Gains		Losses
		(In Thousands)
	Held to maturity:
	Debt securities:
	Government-sponsored enterprises	$	69,938	$	244	$	152	$	70,030
	Corporate bonds		49,981		1,536		—		51,517
			119,919		1,780		152		121,547
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		79,158		2,599		1,407		80,350
	Federal National Mortgage Association		198,798		3,560		5,203		197,155
	Governmental National Mortgage Association		20,821		1,313		122		22,012
			298,777		7,472		6,732		299,517
	Total held to maturity securities	$	418,696	$	9,252	$	6,884	$	421,064
Contractual Maturity Data for Securities	'
	Contractual maturity data for securities are as follows:
		September 30, 2014
		Amortized		Fair
		Cost		Value
		(In Thousands)
	Available for sale:
	Debt securities:
	Due after one but within five years	$	5,000	$	4,997
	Mortgage-backed securities:
	Due after five through ten years		2,395		2,366
	Due after ten years		6,776		6,831
			9,171		9,197
	Total available for sale securities	$	14,171	$	14,194
	Held to maturity:
	Debt securities:
	Due less than one year	$	17,430	$	17,431
	Due after one through five years		100,384		101,256
	Due after five through ten years		25,498		25,818
	Due after ten years		5,774		5,730
			149,086		150,235
	Mortgage-backed securities:
	Due after one through five years		12,461		12,459
	Due after five through ten years		74,011		72,150
	Due after ten years		204,843		210,713
			291,315		295,322
	Total held to maturity securities	$	440,401	$	445,557
Gross Unrealized Losses and Fair Value of Related Securities	'
	The age of gross unrealized losses and the fair value of related securities at September 30 and March 31, 2014 were as follows:
		Less Than 12 Months				12 Months or More				Total
	September 30, 2014:	Fair Value		Gross		Fair Value		Gross		Fair Value		Gross
				Unrealized				Unrealized				Unrealized
				Losses				Losses				Losses
		(In Thousands)
	Available for sale:
	Debt securities:
	Government-sponsored enterprises	$	4,997	$	3	$	—	$	—	$	4,997	$	3
	Mortgage-backed securities:
	Federal National Mortgage Association		6,970		40		—		—		6,970		40
	Total available for sale securities	$	11,967	$	43	$	—	$	—	$	11,967	$	43
	Held to maturity:
	Debt securities:
	Municipal bonds	$	7,081	$	3	$	—	$	—	$	7,081	$	3
	Government-sponsored enterprises		64,651		236		4,935		66		69,586		302
			71,732		239		4,935		66		76,667		305
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		—		—		23,256		729		23,256		729
	Federal National Mortgage Association		7,732		102		103,553		3,123		111,285		3,225
	Government National Mortgage Association		—		—		1,478		84		1,478		84
			7,732		102		128,287		3,936		136,019		4,038
	Total held to maturity securities	$	79,464	$	341	$	133,222	$	4,002	$	212,686	$	4,343
		Less Than 12 Months				12 Months or More				Total
	31-Mar-14	Fair Value		Gross		Fair Value		Gross		Fair Value		Gross
				Unrealized				Unrealized				Unrealized
				Losses				Losses				Losses
		(In Thousands)
	Held to maturity:
	Debt securities:
	Government-sponsored enterprises	$	39,787	$	152	$	—	$	—	$	39,787	$	152
	Mortgage-backed securities:
	Federal Home Loan Mortgage Corporation		33,882		1,405		169		2		34,051		1,407
	Federal National Mortgage Association		105,693		4,546		10,473		657		116,166		5,203
	Government National Mortgage Association		—		—		1,461		122		1,461		122
			139,575		5,951		12,103		781		151,678		6,732
	Total held to maturity securities	$	179,362	$	6,103	$	12,103	$	781	$	191,465	$	6,884

Loans_Receivable_and_Allowance1

Loans Receivable and Allowance for Loan Losses (Tables)	6 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Summary of Loans by Segment	'
	The following is a summary of loans by segment and the classes within those segments:
		September 30,			March 31,
		2014			2014
		(In Thousands)
	Real estate:
	One- to four-family	$	538,774		$	526,670
	Multi-family		34,380			21,565
	Commercial		33,092			25,156
	Construction		388			553
			606,634			573,944
	Consumer:
	Second mortgage		8,097			8,661
	Passbook or certificate		654			758
	Equity lines of credit		2,405			2,255
	Other loans		70			60
			11,226			11,734
	Total Loans		617,860			585,678
	Loans in process		(88	)		(207	)
	Net purchase premiums, discounts, and deferred loan costs		2,502			2,107
			2,414			1,900
	Total Loans, Net	$	620,274		$	587,578
Allowance for Loan Losses	'
	The change in the allowance for loan losses for the three and six months ended September 30, 2014 and 2013 is as follows:
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	At June 30, 2014:
	Total allowance for loan losses	$	2,520		$	247		$	266	$	2		$	43		$	1		$	46		$	3,125
	Charge-offs		(176	)		—			—		—			—			—			—			(176	)
	Recoveries		—			—			—		—			—			—			—			—
	Provision charged to operations		216			43			38		—			1			(1	)		4			301
	At September 30, 2014:
	Total allowance for loan losses	$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	At March 31, 2014:
	Total allowance for loan losses	$	2,460		$	186		$	224	$	2		$	45		$	1		$	153		$	3,071
	Charge-offs		(260	)		—			—		—			—			—			—			(260	)
	Recoveries		—			—			—		—			—			—			—			—
	Provision charged to operations		360			104			80		—			(1	)		(1	)		(103	)		439
	At September 30, 2014:
	Total allowance for loan losses	$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	At June 30, 2013:
	Total allowance for loan losses	$	2,163		$	229		$	128	$	4		$	50		$	1		$	65		$	2,640
	Charge-offs		(46	)		—			—		—			—			—			—			(46	)
	Recoveries		—			—			—		—			—			—			—			—
	Provision charged to operations		323			7			37		(1	)		(1	)		(1	)		(8	)		356
	At September 30, 2013:
	Total allowance for loan losses	$	2,440		$	236		$	165	$	3		$	49		$	—		$	57		$	2,950
		One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	At March 31, 2013:
	Total allowance for loan losses	$	2,127		$	187		$	99	$	5		$	38		$	1		$	43		$	2,500
	Charge-offs		(91	)		—			—		—			—			—			—			(91	)
	Recoveries		5			—			—		—			—			—			—			5
	Provision charged to operations		399			49			66		(2	)		11			(1	)		14			536
	At September 30, 2013:
	Total allowance for loan losses	$	2,440		$	236		$	165	$	3		$	49		$	—		$	57		$	2,950
Allocation of Allowance for Loan Losses by Loan Class	'
	The following table presents the allocation of the allowance for loan losses and related loans by loan class at September 30 and March 31, 2014.
	September 30, 2014	One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	Allowance for loan losses:
	Individually evaluated for impairment	$	—		$	—		$	—	$	—		$	—		$	—		$	—		$	—
	Collectively evaluated for impairment		2,560			290			304		2			44			—			50			3,250
	Total	$	2,560		$	290		$	304	$	2		$	44		$	—		$	50		$	3,250
	Loans:
	Individually evaluated for impairment	$	704		$	206		$	443	$	—		$	—		$	—		$	—		$	1,353
	Collectively evaluated for impairment		538,070			34,174			32,649		388			10,502			724			—			616,507
	Total	$	538,774		$	34,380		$	33,092	$	388		$	10,502		$	724		$	—		$	617,860
	March 31, 2014	One- to			Multi-Family			Commercial		Construction			Second			Passbook or			Unallocated			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			Certificate
		Real Estate											Equity Lines			and Other
													of Credit			Loans
		(In Thousands)
	Allowance for loan losses:
	Individually evaluated for impairment	$	—		$	—		$	—	$	—		$	—		$	—		$	—		$	—
	Collectively evaluated for impairment		2,460			186			224		2			45			1			153			3,071
	Total	$	2,460		$	186		$	224	$	2		$	45		$	1		$	153		$	3,071
	Loans:
	Individually evaluated for impairment	$	387		$	208		$	247	$	—		$	—		$	—		$	—		$	842
	Collectively evaluated for impairment		526,283			21,357			24,909		553			10,916			818			—			584,836
	Total	$	526,670		$	21,565		$	25,156	$	553		$	10,916		$	818		$	—		$	585,678
Aggregate Amount of Classified Loan Balances	'
	The aggregate amount of classified loan balances are as follows at September 30 and March 31, 2014:
	September 30, 2014	One- to			Multi-family			Commercial		Construction			Second			Passbook			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			or			Loans
		Real Estate											Equity Lines			Certificate
													of Credit			and Other
																Loans
		(In Thousands)
	Non-classified:	$	532,717		$	34,380		$	32,649	$	388		$	10,441		$	724		$	611,299
	Classified:
	Special mention		1,945			—			—		—			24			—			1,969
	Substandard		4,112			—			443		—			37			—			4,592
	Doubtful		—			—			—		—			—			—			—
	Loss		—			—			—		—			—			—			—
	Total loans	$	538,774		$	34,380		$	33,092	$	388		$	10,502		$	724		$	617,860
	31-Mar-14	One- to			Multi-family			Commercial		Construction			Second			Passbook			Total
		Four-Family			Real Estate			Real Estate		Real Estate			Mortgage and			or			Loans
		Real Estate											Equity Lines			Certificate
													of Credit			and Other
																Loans
		(In Thousands)
	Non-classified:	$	520,172		$	21,565		$	24,909	$	553		$	10,848		$	818		$	578,865
	Classified:
	Special mention		1,322			—			—		—			31			—			1,353
	Substandard		5,176			—			247		—			37			—			5,460
	Doubtful		—			—			—		—			—			—			—
	Loss		—			—			—		—			—			—			—
	Total loans	$	526,670		$	21,565		$	25,156	$	553		$	10,916		$	818		$	585,678
Information with Respect to Nonaccrual Loans	'
	the factors indicating doubtful collectability no longer exist and the Bank expects repayment of the remaining contractual amounts due.
		September 30,			March 31,
		2014			2014
		(In Thousands)
	Nonaccrual loans:
	Real estate loans:
	One- to four-family	$	4,029		$	4,848
	Commercial		443			247
	Consumer and other loans:
	Second mortgage		37			37
	Total nonaccrual loans	$	4,509		$	5,132
Information about Delinquencies in Loan Portfolio	'
	The following table provides information about delinquencies in the Bank’s loan portfolio at September 30 and March 31, 2014.
	September 30, 2014	30-59			60-89			90 Days		Total			Current			Total
		Days			Days			or More		Past Due						Gross
		Past Due			Past Due			Past Due								Loans
		(In Thousands)
	Real estate loans:
	One- to four-family	$	2,132		$	560		$	2,276	$	4,968		$	533,806		$	538,774
	Multi-family		—			—			—		—			34,380			34,380
	Commercial		—			—			443		443			32,649			33,092
	Construction		—			—			—		—			388			388
	Consumer and other loans:
	Second mortgage and equity lines of credit		51			6			37		94			10,408			10,502
	Passbook or certificate and other loans		—			—			—		—			724			724
	Total	$	2,183		$	566		$	2,756	$	5,505		$	612,355		$	617,860
	March 31, 2014	30-59			60-89			90 Days		Total			Current			Total
		Days			Days			or More		Past Due						Gross
		Past Due			Past Due			Past Due								Loans
		(In Thousands)
	Real estate loans:
	One- to four-family	$	2,278		$	914		$	2,150	$	5,342		$	521,328		$	526,670
	Multi-family		—			—			—		—			21,565			21,565
	Commercial		—			—			247		247			24,909			25,156
	Construction		—			—			—		—			553			553
	Consumer and other loans:
	Second mortgage and equity lines of credit		24			—			37		61			10,855			10,916
	Passbook or certificate and other loans		—			—			—		—			818			818
	Total	$	2,302		$	914		$	2,434	$	5,650		$	580,028		$	585,678
Impaired Loans, None of which had Related Allowance	'
	Impaired loans, none of which had a related allowance at or for the three and six months ending September 30, 2014 and 2013, and at or for the year ended March 31, 2014, were as follows:
	At or For The Three Months Ended September 30, 2014	Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
	With no related allowance recorded:
	Real estate loans:
	One- to four-family	$	704		$	880		$	677	$	7
	Multi-family		206			232			206		4
	Commercial		443			443			295		3
	Total impaired loans	$	1,353		$	1,555		$	1,178	$	14
	At or For The Three Months Ended September 30, 2013	Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
	With no related allowance recorded:
	Real estate loans:
	One- to four-family	$	317		$	490		$	317	$	4
	Commercial		249			249			250		2
	Total impaired loans	$	566		$	739		$	567	$	6
	At or For The Six Months Ended September 30, 2014	Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
	With no related allowance recorded:
	Real estate loans:
	One- to four-family	$	704		$	880		$	632	$	9
	Multi-family		206			232			207		10
	Commercial		443			443			274		6
	Total impaired loans	$	1,353		$	1,555		$	1,113	$	25
	At or For The Six Months Ended September 30, 2013	Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
	With no related allowance recorded:
	Real estate loans:
	One- to four-family	$	317		$	490		$	407	$	9
	Commercial		249			249			250		6
	Total impaired loans	$	566		$	739		$	657	$	15
	At or For The Year Ended March 31, 2014	Recorded			Unpaid			Average		Interest
		Investment			Principal			Recorded		Income
					Balance			Investment		Recognized
		(In Thousands)
	With no related allowance recorded:
	Real estate loans:
	One- to four-family	$	387		$	558		$	376	$	17
	Multi-family		208			235			80		7
	Commercial		247			247			249		12
	Total impaired loans	$	842		$	1,040		$	705	$	36
Troubled Debt Restructurings by Class	'
	The following table presents troubled debt restructurings by class during the periods indicated. There were no new troubled debt restructurings during the three months ended September 30, 2014.
		Number			Pre-restructuring			Post-restructuring		Charge-off
		of Loans			Outstanding			Outstanding		Recorded Upon
					Recorded			Recorded		Restructuring
					Investment			Investment
					(Dollar In Thousands)
	Six Months Ended September 30, 2014
	One- to Four-Family Real Estate		1		$	214		$	207	$	7

Fair_Value_Tables

Fair Value (Tables)	6 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Assets Measured at Fair Value on Recurring Basis	'
	For assets measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30 and March 31, 2014 are as follows:
	Description		Carrying		(Level 1)			(Level 2)		(Level 3)
			Value		Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical Assets			Inputs
			(In Thousands)
	September 30, 2014:
	Securities available for sale:
	Debt securities:
	Government-sponsored enterprises		$	4,997	$	—		$	4,997	$	—
	Mortgage-backed securities:
	Federal National Mortgage Association			9,197		—			9,197		—
	Total securities available for sale		$	14,194	$	—		$	14,194	$	—
	March 31, 2014:
	Securities available for sale:
	Mortgage-backed securities:
	Federal National Mortgage Association		$	3,599	$	—		$	3,599	$	—
	Total securities available for sale		$	3,599	$	—		$	3,599	$	—
Assets Measured at Fair Value on Non-Recurring Basis	'
	For assets measured at fair value on a non-recurring basis, the fair value measurements by level within the fair value hierarchy used at September 30, and March 31, 2014 are as follows:
	Description		Carrying		(Level 1)			(Level 2)		(Level 3)
			Value		Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical Assets			Inputs
			(In Thousands)
	September 30, 2014
	Impaired loans		$	117	$	—		$	—	$	117
	31-Mar-14
	Impaired loan		$	72	$	—		$	—	$	72
Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis	'
	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.
			Fair Value Estimate		Valuation		Unobservable	Range
					Techniques		Input	(Weighted Average)
			(Dollars in Thousand)
	September 30, 2014
	Impaired loans		$	117	Market valuation of underlying collateral (1)		Selling costs (2)	7%-12% (9%)
	March 31, 2014
	Impaired loan		$	72	Market valuation of underlying collateral (1)		Selling costs (2)	9% (9%)
	-1	Fair value is based on either contract sales prices or third party appraisals.
	-2	Includes estimated costs to sell.
Carrying Amounts and Fair Values of Financial Instruments	'
	The carrying amounts and fair values of financial instruments are as follows:
	September 30, 2014		Carrying		Estimated			(Level 1)		(Level 2)		(Level 3)
			Value		Fair Value			Quoted Prices		Significant		Significant
								in Active		Other		Unobservable
								Markets for		Observable		Inputs
								Identical Assets		Inputs
			(In Thousands)
	Financial assets:
	Cash and cash equivalents		$	74,979	$	74,979		$	74,979	$	—	$	—
	Securities available for sale			14,194		14,194			—		14,194		—
	Securities held to maturity			440,401		445,557			—		445,557		—
	Net loans receivable			617,024		612,684			—		—		612,684
	Federal Home Loan Bank of New York stock			6,266		6,266			—		6,266		—
	Interest receivable			3,525		3,525			—		3,525		—
	Financial liabilities:
	Deposits			731,070		734,986			—		734,986		—
	FHLB advances			112,500		116,128			—		116,128		—
	Interest payable			260		260			—		260		—
	March 31, 2014		Carrying		Estimated			(Level 1)		(Level 2)		(Level 3)
			Value		Fair Value			Quoted Prices		Significant		Significant
								in Active		Other		Unobservable
								Markets for		Observable		Inputs
								Identical Assets		Inputs
			(In Thousands)
	Financial assets:
	Cash and cash equivalents		$	192,581	$	192,581		$	192,581	$	—	$	—
	Securities available for sale			3,599		3,599			—		3,599		—
	Securities held to maturity			418,696		421,064			—		421,064		—
	Net loans receivable			584,507		584,131			—		—		584,131
	Federal Home Loan Bank of New York stock			7,889		7,889			—		7,889		—
	Interest receivable			3,281		3,281			—		3,281		—
	Financial liabilities:
	Deposits			763,912		768,233			—		768,233		—
	FHLB advances			142,500		146,655			—		146,655		—
	Stock subscription deposits			154,345		154,345			154,345		—		—
	Interest payable			267		267			—		267		—

Basis_of_Presentation_Addition

Basis of Presentation - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended	6 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 01, 2014	Sep. 30, 2014	Sep. 30, 2014	Apr. 01, 2014	Mar. 31, 2014
Basis Of Presentation [Line Items]	'	'	'	'	'
Entity incorporation date	'	'	30-Nov-13	'	'
Net proceeds from issuance of common stock	$163,200	'	$8,867	'	'
Common stock, shares issued	'	26,676,198	26,676,198	17,059,448	30,530,470
Per share price of common stock	'	'	'	$10	'
Common stock, shares outstanding before second step conversion	'	26,676,198	26,676,198	9,737,241	26,528,999
Conversion rate	0.9791	0.9791	0.9791	'	'
Clifton MHC [Member]	'	'	'	'	'
Basis Of Presentation [Line Items]	'	'	'	'	'
Common shares owned before second step conversion	'	16,791,758	16,791,758	'	'
Percentage of shares owned before second step conversion	'	64.00%	64.00%	'	'
ESOP [Member]	'	'	'	'	'
Basis Of Presentation [Line Items]	'	'	'	'	'
Common stock, shares issued	1,023,566	'	'	1,023,566	'

Earnings_Per_Share_EPS_Additio

Earnings Per Share (EPS) - Additional Information (Detail)	0 Months Ended	3 Months Ended		6 Months Ended
	Apr. 01, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'	'
Incremental shares related to outstanding options included in calculation of diluted EPS	'	188,134	247,590	178,659	238,674
Antidilutive shares excluded from calculation of diluted EPS	'	0	0	0	0
Conversion rate	0.9791	0.9791	'	0.9791	'

Retirement_PlanComponents_of_N2

Retirement Plan-Components of Net Periodic Pension Cost - Periodic Pension Expense (Detail) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]	'	'	'	'
Service cost	$44	$40	$89	$80
Interest cost	30	35	60	70
Amortization of unrecognized net loss	5	12	9	24
Amortization of past service cost	10	10	20	20
Settlement charge	171	'	171	'
Net periodic benefit cost	$260	$97	$349	$194

Securities_Available_for_Sale_

Securities - Available for Sale Securities and Held to Maturity Securities (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Investment Holdings [Line Items]	'	'
Available for sale, Amortized Cost	$14,171	$3,425
Available for sale, Gross Unrealized Gains	66	174
Available for sale, Gross Unrealized Losses	43	'
Available for sale, Fair Value	14,194	3,599
Held to maturity, Amortized Cost	440,401	418,696
Held to maturity, Gross Unrealized Gains	9,499	9,252
Held to maturity, Gross Unrealized Losses	4,343	6,884
Held to maturity, Fair Value	445,557	421,064
Mortgage-Backed Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	291,315	298,777
Held to maturity, Gross Unrealized Gains	8,045	7,472
Held to maturity, Gross Unrealized Losses	4,038	6,732
Held to maturity, Fair Value	295,322	299,517
Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Amortized Cost	9,171	3,425
Available for sale, Gross Unrealized Gains	66	174
Available for sale, Gross Unrealized Losses	40	'
Available for sale, Fair Value	9,197	3,599
Held to maturity, Amortized Cost	199,508	198,798
Held to maturity, Gross Unrealized Gains	4,027	3,560
Held to maturity, Gross Unrealized Losses	3,225	5,203
Held to maturity, Fair Value	200,310	197,155
Mortgage-Backed Securities [Member] | Federal Home Loan Mortgage Corporation [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	72,609	79,158
Held to maturity, Gross Unrealized Gains	2,701	2,599
Held to maturity, Gross Unrealized Losses	729	1,407
Held to maturity, Fair Value	74,581	80,350
Mortgage-Backed Securities [Member] | Government National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	19,198	20,821
Held to maturity, Gross Unrealized Gains	1,317	1,313
Held to maturity, Gross Unrealized Losses	84	122
Held to maturity, Fair Value	20,431	22,012
Debt Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	149,086	119,919
Held to maturity, Gross Unrealized Gains	1,454	1,780
Held to maturity, Gross Unrealized Losses	305	152
Held to maturity, Fair Value	150,235	121,547
Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Amortized Cost	5,000	'
Available for sale, Gross Unrealized Gains	'	'
Available for sale, Gross Unrealized Losses	3	'
Available for sale, Fair Value	4,997	'
Held to maturity, Amortized Cost	84,887	69,938
Held to maturity, Gross Unrealized Gains	246	244
Held to maturity, Gross Unrealized Losses	302	152
Held to maturity, Fair Value	84,831	70,030
Debt Securities [Member] | Municipal Bonds [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	19,188	'
Held to maturity, Gross Unrealized Gains	6	'
Held to maturity, Gross Unrealized Losses	3	'
Held to maturity, Fair Value	19,191	'
Debt Securities [Member] | Corporate Bonds [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Amortized Cost	45,011	49,981
Held to maturity, Gross Unrealized Gains	1,202	1,536
Held to maturity, Gross Unrealized Losses	'	'
Held to maturity, Fair Value	$46,213	$51,517

Securities_Contractual_Maturit

Securities - Contractual Maturity Data for Securities (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Investment Holdings [Line Items]	'	'
Available for sale, Amortized Cost	$14,171	'
Held to maturity, Amortized Cost	440,401	418,696
Available for sale, Fair Value	14,194	'
Held to maturity, Fair Value	445,557	421,064
Mortgage-Backed Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Due after five through ten years, Amortized Cost	2,395	'
Available for sale, Due after ten years, Amortized Cost	6,776	'
Available for sale, Amortized Cost	9,171	'
Held to maturity, Due after one through five years, Amortized Cost	12,461	'
Held to maturity, Due after five through ten years, Amortized Cost	74,011	'
Held to maturity, Due after ten years, Amortized Cost	204,843	'
Held to maturity, Amortized Cost	291,315	298,777
Available for sale, Due after five through ten years, Fair Value	2,366	'
Available for sale, Due after ten years, Fair Value	6,831	'
Held to maturity, Due after one through five years, Fair Value	12,459	'
Available for sale, Fair Value	9,197	'
Held to maturity, Due after five through ten years, Fair Value	72,150	'
Held to maturity, Due after ten years, Fair Value	210,713	'
Held to maturity, Fair Value	295,322	299,517
Debt Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Due after one but within five years, Amortized Cost	5,000	'
Held to maturity, Due less than one year, Amortized Cost	17,430	'
Held to maturity, Due after one through five years, Amortized Cost	100,384	'
Held to maturity, Due after five through ten years, Amortized Cost	25,498	'
Held to maturity, Due after ten years, Amortized Cost	5,774	'
Held to maturity, Amortized Cost	149,086	119,919
Available for sale, Due after one but within five years, Fair Value	4,997	'
Held to maturity, Due less than one year, Fair Value	17,431	'
Held to maturity, Due after one through five years, Fair Value	101,256	'
Held to maturity, Due after five through ten years, Fair Value	25,818	'
Held to maturity, Due after ten years, Fair Value	5,730	'
Held to maturity, Fair Value	$150,235	$121,547

Securities_Additional_Informat

Securities - Additional Information (Detail) (USD $)	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Investment Holdings [Line Items]	'	'
Proceeds from sale of securities available for sale	$1,022,000	$4,659,000
Realized gain on securities available for sale	102,000	295,000
Held-to-maturity Securities, sold security, at carrying value	'	5,600,000
Available for sale securities sold security realized loss	'	0
Held to maturity securities sold security realized gain	'	272,000
Held to maturity securities sold security realized loss	'	$1,000
Maximum [Member] | Residential Mortgage Loans [Member]	'	'
Investment Holdings [Line Items]	'	'
Contractual maturities	'15 years	'
Maximum [Member] | Multi-Family Loans [Member]	'	'
Investment Holdings [Line Items]	'	'
Contractual maturities	'10 years	'
Minimum [Member] | Multi-Family Loans [Member]	'	'
Investment Holdings [Line Items]	'	'
Contractual maturities	'5 years	'
Mortgage-Backed Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity securities maximum percentage of remaining principal balance	15.00%	'
Federal National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Number of FNMA MBS not representing other than temporary impairment	35	'
Federal Home Loan Mortgage Corporation [Member]	'	'
Investment Holdings [Line Items]	'	'
Number of FNMA MBS not representing other than temporary impairment	8	'
Government National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Number of FNMA MBS not representing other than temporary impairment	1	'
Government-Sponsored Enterprises [Member]	'	'
Investment Holdings [Line Items]	'	'
Number of FNMA MBS not representing other than temporary impairment	15	'
Municipal Bonds [Member]	'	'
Investment Holdings [Line Items]	'	'
Number of FNMA MBS not representing other than temporary impairment	6	'

Securities_Gross_Unrealized_Lo

Securities - Gross Unrealized Losses and Fair Value of Related Securities (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Investment Holdings [Line Items]	'	'
Available for sale, Less Than 12 Months, Fair Value	$11,967	'
Held to maturity, Less Than 12 Months, Fair Value	79,464	179,362
Available for sale, Less Than 12 Months, Gross Unrealized Losses	43	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	341	6,103
Available for sale, 12 Months or More, Fair Value	'	'
Held to maturity, 12 Months or More, Fair Value	133,222	12,103
Available for sale, 12 Months or More, Gross Unrealized Losses	'	'
Held to maturity, 12 Months or More, Gross Unrealized Losses	4,002	781
Available for sale, Total, Fair Value	11,967	'
Held to maturity, Total, Fair Value	212,686	191,465
Available for sale, Total, Gross Unrealized Losses	43	'
Held to maturity, Total, Gross Unrealized Losses	4,343	6,884
Debt Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Less Than 12 Months, Fair Value	71,732	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	239	'
Held to maturity, 12 Months or More, Fair Value	4,935	'
Held to maturity, 12 Months or More, Gross Unrealized Losses	66	'
Held to maturity, Total, Fair Value	76,667	'
Held to maturity, Total, Gross Unrealized Losses	305	152
Debt Securities [Member] | Municipal Bonds [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Less Than 12 Months, Fair Value	7,081	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	3	'
Held to maturity, 12 Months or More, Fair Value	'	'
Held to maturity, 12 Months or More, Gross Unrealized Losses	'	'
Held to maturity, Total, Fair Value	7,081	'
Held to maturity, Total, Gross Unrealized Losses	3	'
Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Less Than 12 Months, Fair Value	4,997	'
Held to maturity, Less Than 12 Months, Fair Value	64,651	39,787
Available for sale, Less Than 12 Months, Gross Unrealized Losses	3	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	236	152
Available for sale, 12 Months or More, Fair Value	'	'
Held to maturity, 12 Months or More, Fair Value	4,935	'
Available for sale, 12 Months or More, Gross Unrealized Losses	'	'
Held to maturity, 12 Months or More, Gross Unrealized Losses	66	'
Available for sale, Total, Fair Value	4,997	'
Held to maturity, Total, Fair Value	69,586	39,787
Available for sale, Total, Gross Unrealized Losses	3	'
Held to maturity, Total, Gross Unrealized Losses	302	152
Mortgage-Backed Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Total, Gross Unrealized Losses	4,038	6,732
Mortgage-Backed Securities [Member] | Federal Home Loan Mortgage Corporation [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Less Than 12 Months, Fair Value	'	33,882
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	'	1,405
Held to maturity, 12 Months or More, Fair Value	23,256	169
Held to maturity, 12 Months or More, Gross Unrealized Losses	729	2
Held to maturity, Total, Fair Value	23,256	34,051
Held to maturity, Total, Gross Unrealized Losses	729	1,407
Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Available for sale, Less Than 12 Months, Fair Value	6,970	'
Held to maturity, Less Than 12 Months, Fair Value	7,732	105,693
Available for sale, Less Than 12 Months, Gross Unrealized Losses	40	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	102	4,546
Available for sale, 12 Months or More, Fair Value	'	'
Held to maturity, 12 Months or More, Fair Value	103,553	10,473
Available for sale, 12 Months or More, Gross Unrealized Losses	'	'
Held to maturity, 12 Months or More, Gross Unrealized Losses	3,123	657
Available for sale, Total, Fair Value	6,970	'
Held to maturity, Total, Fair Value	111,285	116,166
Available for sale, Total, Gross Unrealized Losses	40	'
Held to maturity, Total, Gross Unrealized Losses	3,225	5,203
Mortgage-Backed Securities [Member] | Government National Mortgage Association [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Less Than 12 Months, Fair Value	'	'
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	'	'
Held to maturity, 12 Months or More, Fair Value	1,478	1,461
Held to maturity, 12 Months or More, Gross Unrealized Losses	84	122
Held to maturity, Total, Fair Value	1,478	1,461
Held to maturity, Total, Gross Unrealized Losses	84	122
Mortgage-Backed Securities [Member] | Federal Securities [Member]	'	'
Investment Holdings [Line Items]	'	'
Held to maturity, Less Than 12 Months, Fair Value	7,732	139,575
Held to maturity, Less Than 12 Months, Gross Unrealized Losses	102	5,951
Held to maturity, 12 Months or More, Fair Value	128,287	12,103
Held to maturity, 12 Months or More, Gross Unrealized Losses	3,936	781
Held to maturity, Total, Fair Value	136,019	151,678
Held to maturity, Total, Gross Unrealized Losses	$4,038	$6,732

Loans_Receivable_and_Allowance2

Loans Receivable and Allowance for Loan Losses - Summary of Loans by Segment (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	$617,860	$585,678
Loans in process	-88	-207
Net purchase premiums, discounts, and deferred loan costs	2,502	2,107
Loan in process and unamortized yield adjustments	2,414	1,900
Total Loans, Net	620,274	587,578
One-to-Four-Family Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	538,774	526,670
Multi-Family Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	34,380	21,565
Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	33,092	25,156
Construction Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	388	553
Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total real estate loans	606,634	573,944
Real Estate [Member] | One-to-Four-Family Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total real estate loans	538,774	526,670
Total	538,774	526,670
Real Estate [Member] | Multi-Family Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total real estate loans	34,380	21,565
Total	34,380	21,565
Real Estate [Member] | Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total real estate loans	33,092	25,156
Total	33,092	25,156
Real Estate [Member] | Construction Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total real estate loans	388	553
Total	388	553
Consumer [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total consumer loans	11,226	11,734
Consumer [Member] | Second Mortgage [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total consumer loans	8,097	8,661
Consumer [Member] | Passbook or Certificate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total consumer loans	654	758
Consumer [Member] | Equity Lines of Credit [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total consumer loans	2,405	2,255
Consumer [Member] | Other Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total consumer loans	$70	$60

Loans_Receivable_and_Allowance3

Loans Receivable and Allowance for Loan Losses - Additional Information (Detail) (USD $)	3 Months Ended	6 Months Ended		3 Months Ended		6 Months Ended			6 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014	Sep. 30, 2014	Mar. 31, 2014
	Restructuring	Loan	Loan	Troubled Debt Restructuring [Member]	Troubled Debt Restructuring [Member]	Troubled Debt Restructuring [Member]	Troubled Debt Restructuring [Member]	Troubled Debt Restructuring [Member]	Minimum [Member]	Minimum [Member]
	Loan			Restructuring	Restructuring	Restructuring	Restructuring
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of unsecured loans in other loans	'	2	'	'	'	'	'	'	'	'
Loans on non accrual status	'	'	'	'	'	'	'	'	'90 days	'90 days
Non accrual status to satisfy the loan terms	'	'	'	'	'	'	'	'	'6 months	'6 months
Loans that are past due greater than 90 days	0	0	0	'	'	'	'	'	'	'
Troubled debt restructuring total	'	'	'	$721,000	'	$721,000	'	$523,000	'	'
90 Days or More Past Due	$2,756,000	$2,756,000	$2,434,000	$7,000	'	$7,000	'	$8,000	'	'
Number of new troubled debt restructurings	0	'	'	'	'	'	'	'	'	'
Period for assumption of trouble debt restructuring	'	'	'	'12 months	'12 months	'12 months	'12 months	'	'	'
Number of defaults of new troubled debt restructuring	'	'	'	0	0	0	0	'	'	'

Loans_Receivable_and_Allowance4

Loans Receivable and Allowance for Loan Losses - Allowance for Loan Losses (Detail) (USD $)

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Jun. 30, 2014

Mar. 31, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

One-to-Four-Family Real Estate [Member]

One-to-Four-Family Real Estate [Member]

One-to-Four-Family Real Estate [Member]

One-to-Four-Family Real Estate [Member]

Multi-Family Loans [Member]

Multi-Family Loans [Member]

Multi-Family Loans [Member]

Multi-Family Loans [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Construction Real Estate [Member]

Construction Real Estate [Member]

Construction Real Estate [Member]

Construction Real Estate [Member]

Construction Real Estate [Member]

Second Mortgage and Equity Lines of Credit [Member]

Second Mortgage and Equity Lines of Credit [Member]

Second Mortgage and Equity Lines of Credit [Member]

Second Mortgage and Equity Lines of Credit [Member]

Passbook or Certificate and Other Loans [Member]

Passbook or Certificate and Other Loans [Member]

Passbook or Certificate and Other Loans [Member]

Passbook or Certificate and Other Loans [Member]

Unallocated [Member]

Unallocated [Member]

Unallocated [Member]

Unallocated [Member]

Accounts, Notes, Loans and Financing Receivable [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total allowance for loan losses, beginning balance

$3,125

$2,640

$3,071

$2,500

$2,520

$2,163

$2,460

$2,127

$247

$229

$186

$187

$266

$128

$224

$99

$4

$5

$2

$2

$2

$43

$50

$45

$38

$1

$1

$1

$1

$46

$65

$153

$43

Charge-offs

-176

-46

-260

-91

-176

-46

-260

-91

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recoveries

'

'

'

5

'

'

'

5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Provision charged to operations

301

356

439

536

216

323

360

399

43

7

104

49

38

37

80

66

-1

-2

'

'

'

1

-1

-1

11

-1

-1

-1

-1

4

-8

-103

14

Total allowance for loan losses, ending balance

$3,250

$2,950

$3,250

$2,950

$2,560

$2,440

$2,560

$2,440

$290

$236

$290

$236

$304

$165

$304

$165

$3

$3

$2

$2

$2

$44

$49

$44

$49

'

'

'

'

$50

$57

$50

$57

Loans_Receivable_and_Allowance5

Loans Receivable and Allowance for Loan Losses - Allocation of Allowance for Loan Losses by Loan Class (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	3,250	'	3,071	'	'	'
Total	3,250	3,125	3,071	2,950	2,640	2,500
Individually evaluated for impairment	1,353	'	842	'	'	'
Collectively evaluated for impairment	616,507	'	584,836	'	'	'
Total	617,860	'	585,678	'	'	'
One-to-Four-Family Real Estate [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	2,560	'	2,460	'	'	'
Total	2,560	2,520	2,460	2,440	2,163	2,127
Individually evaluated for impairment	704	'	387	'	'	'
Collectively evaluated for impairment	538,070	'	526,283	'	'	'
Total	538,774	'	526,670	'	'	'
Multi-Family Loans [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	290	'	186	'	'	'
Total	290	247	186	236	229	187
Individually evaluated for impairment	206	'	208	'	'	'
Collectively evaluated for impairment	34,174	'	21,357	'	'	'
Total	34,380	'	21,565	'	'	'
Commercial Real Estate [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	304	'	224	'	'	'
Total	304	266	224	165	128	99
Individually evaluated for impairment	443	'	247	'	'	'
Collectively evaluated for impairment	32,649	'	24,909	'	'	'
Total	33,092	'	25,156	'	'	'
Construction Real Estate [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	2	'	2	'	'	'
Total	2	2	2	3	4	5
Collectively evaluated for impairment	388	'	553	'	'	'
Total	388	'	553	'	'	'
Second Mortgage and Equity Lines of Credit [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	44	'	45	'	'	'
Total	44	43	45	49	50	38
Collectively evaluated for impairment	10,502	'	10,916	'	'	'
Total	10,502	'	10,916	'	'	'
Passbook or Certificate and Other Loans [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	'	'	1	'	'	'
Total	'	1	1	'	1	1
Collectively evaluated for impairment	724	'	818	'	'	'
Total	724	'	818	'	'	'
Unallocated [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'	'
Collectively evaluated for impairment	50	'	153	'	'	'
Total	$50	$46	$153	$57	$65	$43

Loans_Receivable_and_Allowance6

Loans Receivable and Allowance for Loan Losses - Aggregate Amount of Classified Loan Balances (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	$611,299	$578,865
Special mention loan	1,969	1,353
Substandard loan	4,592	5,460
Doubtful loan	'	'
Loss loan	'	'
Total	617,860	585,678
One-to-Four-Family Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	532,717	520,172
Special mention loan	1,945	1,322
Substandard loan	4,112	5,176
Doubtful loan	'	'
Loss loan	'	'
Total	538,774	526,670
Multi-Family Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	34,380	21,565
Special mention loan	'	'
Substandard loan	'	'
Doubtful loan	'	'
Loss loan	'	'
Total	34,380	21,565
Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	32,649	24,909
Special mention loan	'	'
Substandard loan	443	247
Doubtful loan	'	'
Loss loan	'	'
Total	33,092	25,156
Construction Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	388	553
Special mention loan	'	'
Substandard loan	'	'
Doubtful loan	'	'
Loss loan	'	'
Total	388	553
Second Mortgage and Equity Lines of Credit [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	10,441	10,848
Special mention loan	24	31
Substandard loan	37	37
Doubtful loan	'	'
Loss loan	'	'
Total	10,502	10,916
Passbook or Certificate and Other Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Non-classified:	724	818
Special mention loan	'	'
Substandard loan	'	'
Doubtful loan	'	'
Loss loan	'	'
Total	$724	$818

Loans_Receivable_and_Allowance7

Loans Receivable and Allowance for Loan Losses - Information with Respect to Nonaccrual Loans (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Nonaccrual loans:	'	'
Total nonaccrual loans	$4,509	$5,132
Real Estate [Member] | One-to-Four-Family Real Estate [Member]	'	'
Nonaccrual loans:	'	'
Total nonaccrual loans	4,029	4,848
Real Estate [Member] | Commercial Real Estate [Member]	'	'
Nonaccrual loans:	'	'
Total nonaccrual loans	443	247
Consumer [Member] | Second Mortgage [Member]	'	'
Nonaccrual loans:	'	'
Total nonaccrual loans	$37	$37

Loans_Receivable_and_Allowance8

Loans Receivable and Allowance for Loan Losses - Information about Delinquencies in Loan Portfolio (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
30-59 Days Past Due	$2,183,000	$2,302,000
60-89 Days Past Due	566,000	914,000
90 Days or More Past Due	2,756,000	2,434,000
Total Past Due	5,505,000	5,650,000
Current	612,355,000	580,028,000
Total	617,860,000	585,678,000
One-to-Four-Family Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	538,774,000	526,670,000
Multi-Family Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	34,380,000	21,565,000
Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	33,092,000	25,156,000
Construction Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	388,000	553,000
Second Mortgage and Equity Lines of Credit [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	10,502,000	10,916,000
Passbook or Certificate and Other Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	724,000	818,000
Real Estate [Member] | One-to-Four-Family Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
30-59 Days Past Due	2,132,000	2,278,000
60-89 Days Past Due	560,000	914,000
90 Days or More Past Due	2,276,000	2,150,000
Total Past Due	4,968,000	5,342,000
Current	533,806,000	521,328,000
Total	538,774,000	526,670,000
Real Estate [Member] | Multi-Family Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Current	34,380,000	21,565,000
Total	34,380,000	21,565,000
Real Estate [Member] | Commercial Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
90 Days or More Past Due	443,000	247,000
Total Past Due	443,000	247,000
Current	32,649,000	24,909,000
Total	33,092,000	25,156,000
Real Estate [Member] | Construction Real Estate [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Current	388,000	553,000
Total	388,000	553,000
Consumer [Member] | Second Mortgage and Equity Lines of Credit [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
30-59 Days Past Due	51,000	24,000
60-89 Days Past Due	6,000	'
90 Days or More Past Due	37,000	37,000
Total Past Due	94,000	61,000
Current	10,408,000	10,855,000
Total	10,502,000	10,916,000
Consumer [Member] | Passbook or Certificate and Other Loans [Member]	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Current	724,000	818,000
Total	$724,000	$818,000

Loans_Receivable_and_Allowance9

Loans Receivable and Allowance for Loan Losses - Impaired Loans, None of which had Related Allowance (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Mar. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Total impaired loans, Recorded Investment	$1,353	$566	$1,353	$566	$842
Total impaired loans, Unpaid Principal Balance	1,555	739	1,555	739	1,040
Total impaired loans, Average Recorded Investment	1,178	567	1,113	657	705
Total impaired loans, Interest Income Recognized	14	6	25	15	36
Real Estate [Member] | One-to-Four-Family Real Estate [Member]	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Total impaired loans, Recorded Investment	704	317	704	317	387
Total impaired loans, Unpaid Principal Balance	880	490	880	490	558
Total impaired loans, Average Recorded Investment	677	317	632	407	376
Total impaired loans, Interest Income Recognized	7	4	9	9	17
Real Estate [Member] | Multi-Family Loans [Member]	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Total impaired loans, Recorded Investment	206	'	206	'	208
Total impaired loans, Unpaid Principal Balance	232	'	232	'	235
Total impaired loans, Average Recorded Investment	206	'	207	'	80
Total impaired loans, Interest Income Recognized	4	'	10	'	7
Real Estate [Member] | Commercial Real Estate [Member]	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Total impaired loans, Recorded Investment	443	249	443	249	247
Total impaired loans, Unpaid Principal Balance	443	249	443	249	247
Total impaired loans, Average Recorded Investment	295	250	274	250	249
Total impaired loans, Interest Income Recognized	$3	$2	$6	$6	$12

Recovered_Sheet1

Loans Receivable and Allowance for Loan Losses - Troubled Debt Restructurings by Class (Detail) (USD $)	3 Months Ended	6 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014
	Restructuring	Real Estate [Member]
		One-to-Four-Family Real Estate [Member]
		SecurityLoan
Financing Receivable, Modifications [Line Items]	'	'
Number of Loans	0	1
Pre-restructuring Outstanding Recorded Investment	'	$214
Post-restructuring Outstanding Recorded Investment	'	207
Charge-off Recorded Upon Restructuring	'	$7

Fair_Value_Assets_Measured_at_

Fair Value - Assets Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	$14,194	$3,599
Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	4,997	'
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	14,194	3,599
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	4,997	'
Fair Value, Measurements, Recurring [Member] | Carrying Value [Member] | Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	9,197	3,599
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'
(Level 2) Significant Other Observable Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	14,194	3,599
(Level 2) Significant Other Observable Inputs [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	14,194	3,599
(Level 2) Significant Other Observable Inputs [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	4,997	'
(Level 2) Significant Other Observable Inputs [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	9,197	3,599
(Level 3) Significant Unobservable Inputs [Member] | Fair Value, Measurements, Recurring [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'
(Level 3) Significant Unobservable Inputs [Member] | Fair Value, Measurements, Recurring [Member] | Debt Securities [Member] | Government-Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'
(Level 3) Significant Unobservable Inputs [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage-Backed Securities [Member] | Federal National Mortgage Association [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total securities available for sale	'	'

Fair_Value_Assets_Measured_at_1

Fair Value - Assets Measured at Fair Value on Non-Recurring Basis (Detail) (Impaired Loan [Member], USD $)	Sep. 30, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Carrying Value [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair value assets measured on non-recurring basis	$117	$72
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair value assets measured on non-recurring basis	'	'
(Level 2) Significant Other Observable Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair value assets measured on non-recurring basis	'	'
(Level 3) Significant Unobservable Inputs [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Fair value assets measured on non-recurring basis	$117	$72

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'	'
Liabilities measured at fair value on recurring or non-recurring basis	$0	$0

Fair_Value_Additional_Quantita

Fair Value - Additional Quantitative Information about Assets Measured at Fair Value on Nonrecurring Basis (Detail) (Fair Value, Measurements, Nonrecurring [Member], Impaired Loan [Member], USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Fair Value Estimate	$117	$72
Valuation Techniques	'Market valuation of underlying collateral	'Market valuation of underlying collateral
Selling costs, Range	'	9.00%
Selling costs, Weighted Average	9.00%	9.00%
Minimum [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Selling costs, Range	7.00%	'
Maximum [Member]	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'
Selling costs, Range	12.00%	'

Fair_Value_Carrying_Amounts_an

Fair Value - Carrying Amounts and Fair Values of Financial Instruments (Detail) (USD $)	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Financial assets:	'	'	'	'
Cash and cash equivalents	$74,979	$192,581	$14,812	$25,896
Securities available for sale	14,194	3,599	'	'
Securities held to maturity, carrying value	440,401	418,696	'	'
Securities held to maturity, fair value	445,557	421,064	'	'
Net loans receivable	617,024	584,507	'	'
Federal Home Loan Bank of New York stock	6,266	7,889	'	'
Interest receivable	3,525	3,281	'	'
Financial liabilities:	'	'	'	'
Deposits	731,070	763,912	'	'
FHLB advances	112,500	142,500	'	'
Stock subscription deposits	'	154,345	'	'
Interest payable	260	267	'	'
Estimated Fair Value [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	74,979	192,581	'	'
Securities available for sale	14,194	3,599	'	'
Securities held to maturity, fair value	445,557	421,064	'	'
Net loans receivable	612,684	584,131	'	'
Federal Home Loan Bank of New York stock	6,266	7,889	'	'
Interest receivable	3,525	3,281	'	'
Financial liabilities:	'	'	'	'
Deposits	734,986	768,233	'	'
FHLB advances	116,128	146,655	'	'
Stock subscription deposits	'	154,345	'	'
Interest payable	260	267	'	'
(Level 1) Quoted Prices in Active Markets for Identical Assets [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents	74,979	192,581	'	'
Financial liabilities:	'	'	'	'
Stock subscription deposits	'	154,345	'	'
(Level 2) Significant Other Observable Inputs [Member]	'	'	'	'
Financial assets:	'	'	'	'
Securities available for sale	14,194	3,599	'	'
Securities held to maturity, fair value	445,557	421,064	'	'
Federal Home Loan Bank of New York stock	6,266	7,889	'	'
Interest receivable	3,525	3,281	'	'
Financial liabilities:	'	'	'	'
Deposits	734,986	768,233	'	'
FHLB advances	116,128	146,655	'	'
Interest payable	260	267	'	'
(Level 3) Significant Unobservable Inputs [Member]	'	'	'	'
Financial assets:	'	'	'	'
Net loans receivable	$612,684	$584,131	'	'