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Loans Receivable, Net Troubled Debt Restructurings (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 429	$ 1,691
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 456	$ 1,691
One-to-four family [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment		$ 43
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 456	$ 43
weighted average rate pre modification	4.08%	12.00%
Weighted average rate post modification	4.89%	12.00%
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	1
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 860
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 860
weighted average rate pre modification	0.00%	6.60%
Weighted average rate post modification	0.00%	6.60%
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 0	$ 788
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 0	$ 788
weighted average rate pre modification	0.00%	8.25%
Weighted average rate post modification	0.00%	8.25%

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Weighted average rate post modification on TDR loans

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weighted average rate pre modification rates on TDR loans

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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