Credit Risk Profile Internal Grade (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	$ 589,019	$ 483,762	[1]
Multifamily [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	95,648	94,590	[2]
Multifamily [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	93,879	93,102	[2]
Multifamily [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Multifamily [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	1,769	1,488
Multifamily [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Multifamily [Member] | Unlikely to be Collected Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	273,470	185,966	[2]
Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	262,937	181,455	[3]
Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	4,239	1,890
Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	6,294	2,621
Commercial Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Commercial Real Estate [Member] | Unlikely to be Collected Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	5,000	5,076
Construction Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	5,000	5,076
Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Construction Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Construction Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Construction Loans [Member] | Unlikely to be Collected Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Commercial Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	71,192	70,640	[1]
Commercial Loan [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	61,331	62,460	[2]
Commercial Loan [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	2,039	1,065
Commercial Loan [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	7,822	7,115
Commercial Loan [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
Commercial Loan [Member] | Unlikely to be Collected Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	0	0
One-to-four family [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	143,667	127,056	[2]
One-to-four family [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	140,720	123,218	[2]
One-to-four family [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	2,947	3,838
Consumer Loan [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	42	434
Consumer Loan [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	42	434
Consumer Loan [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans Receivable, Net	$ 0	$ 0

[1] (1) March 31, 2015 balance has been been restated from previously reported amounts to correct the classification of $981 thousand of interest-bearing deposits from available-for-sale securities to other assets.

[2] (1) March 31, 2015 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Notes 1 and 18 for further detail.

[3] (2) March 31, 2015 balances have been restated from previously reported results for the $701 thousand reclassification of negative escrow balances from Other Assets to Loans Receivable a