Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands		Sep. 30, 2015	Mar. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Restricted cash		$ 154	$ 6,354
Available-for-sale		75,760	101,185
Federal Home Loan Bank of New York (“FHLB-NY”) stock		3,558	3,519
Held-to-maturity Securities, Fair Value	[1]	16,311	12,231
Held-to-maturity Securities, Amortized Cost	[1]	16,087	11,922
Loans held-for-sale (HFS)		2,586	2,576
Accrued interest receivable		3,516	2,781
Mortgage servicing rights		205	210
Deposits		586,294	527,761
Fair Value, Inputs, Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		57,672	50,992
Restricted cash		0	0
Available-for-sale		0	0
Federal Home Loan Bank of New York (“FHLB-NY”) stock		0	0
Held-to-maturity Securities, Fair Value		0	0
Loans Receivable		0	0
Loans held-for-sale (HFS)		0	0
Accrued interest receivable		0	0
Mortgage servicing rights		0	0
Deposits		328,721	309,897
Federal Home Loan Bank Borrowings		0	0
Subordinated Debt Obligations, Fair Value Disclosure		0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0	0
Restricted cash		154	6,354
Available-for-sale		75,714	101,138
Federal Home Loan Bank of New York (“FHLB-NY”) stock		3,558	3,519
Held-to-maturity Securities, Fair Value		16,311	12,231
Loans Receivable		0	0
Loans held-for-sale (HFS)		2,586	2,576
Accrued interest receivable		3,516	2,781
Mortgage servicing rights		0	0
Deposits		240,657	201,263
Federal Home Loan Bank Borrowings		65,668	65,827
Subordinated Debt Obligations, Fair Value Disclosure		19,594	18,931
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		0	0
Restricted cash		0	0
Available-for-sale		46	47
Federal Home Loan Bank of New York (“FHLB-NY”) stock		0	0
Held-to-maturity Securities, Fair Value		0	0
Loans Receivable		564,494	485,458
Loans held-for-sale (HFS)		0	0
Accrued interest receivable		0	0
Mortgage servicing rights		205	210
Deposits		0	0
Federal Home Loan Bank Borrowings		0	0
Subordinated Debt Obligations, Fair Value Disclosure		0	0
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		57,672	50,992
Restricted cash			6,354
Federal Home Loan Bank of New York (“FHLB-NY”) stock			3,519
Loans Receivable		558,199	478,716
Accrued interest receivable			2,781
Deposits		586,294	527,761
Federal Home Loan Bank Borrowings		65,000	65,000
Subordinated Debt Obligations, Fair Value Disclosure		18,403	18,403
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		57,672	50,992
Restricted cash		154	6,354
Available-for-sale		75,760	101,185
Federal Home Loan Bank of New York (“FHLB-NY”) stock		3,558	3,519
Held-to-maturity Securities, Fair Value		16,311	12,231
Loans Receivable		564,494	485,458
Loans held-for-sale (HFS)		2,586	2,576
Accrued interest receivable		3,516	2,781
Mortgage servicing rights		205	210
Deposits		569,378	511,160
Federal Home Loan Bank Borrowings		65,668	65,827
Subordinated Debt Obligations, Fair Value Disclosure		$ 19,594	$ 18,931

[1] * The carrying amount and amortized cost are the same for all held-to-maturity securities, as no OTTI has been recorded.