Loans Receivable, Net Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	3	9
Financing Receivable, Modifications, Pre-Modification Recorded Investment	$ 1,591	$ 5,546
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,586	4,163
One- to four family loans [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	2	2
Financing Receivable, Modifications, Pre-Modification Recorded Investment	747	1,414
Financing Receivable, Modifications, Post-Modification Recorded Investment	867	535
weighted average rate pre modification	5.51%	7.66%
Weighted average rate post modification	4.69%	4.00%
Financing Receivables, Modifications Pre Modification Recorded Investment		500
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	0	3
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	1,900
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	1,418
weighted average rate pre modification	0.00%	6.54%
Weighted average rate post modification	0.00%	6.38%
Financing Receivables, Modifications Pre Modification Recorded Investment		1,900
Commercial Loan [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Number of Contracts	1	4
Financing Receivable, Modifications, Pre-Modification Recorded Investment	844	2,242
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 719	$ 2,210
weighted average rate pre modification	6.00%	7.23%
Weighted average rate post modification	6.00%	7.21%