Investment Securities Investment Securities Amortized Cost and Estimated Fair Value (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Sep. 30, 2014		Mar. 31, 2014
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 97,776		$ 94,233
Available-for-sale Securities, Gross Unrealized Gain	14		0
Available-for-sale Securities, Gross Unrealized Loss	(3,076)		(4,772)
Available-for-sale	94,714		89,461
Held-to-maturity Securities, Amortized Cost	8,654	[1]	9,029
Held-to-maturity Securities, Unrecognized Holding Gain	212	[1]	225
Held-to-maturity Securities, Unrecognized Holding Loss	(144)	[1]	(283)
Held-to-maturity Securities, Fair Value	8,722	[1]	8,971
securities amortized cost	106,430		103,262
Unrealized Gain on Securities	226		225
Unrealized Loss on Securities	(3,220)		(5,055)
Investments, Fair Value Disclosure	103,436		98,432
Government National Mortgage Association
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	5,811		5,972
Available-for-sale Securities, Gross Unrealized Gain	0		0
Available-for-sale Securities, Gross Unrealized Loss	(157)		(307)
Available-for-sale	5,654		5,665
Held-to-maturity Securities, Amortized Cost	3,429		3,743
Held-to-maturity Securities, Unrecognized Holding Gain	212		225
Held-to-maturity Securities, Unrecognized Holding Loss	0		0
Held-to-maturity Securities, Fair Value	3,641	[1]	3,968
Federal Home Loan Mortgage Corporation
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	11,369		12,160
Available-for-sale Securities, Gross Unrealized Gain	2		0
Available-for-sale Securities, Gross Unrealized Loss	(341)		(564)
Available-for-sale	11,030		11,596
Federal National Mortgage Association
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	10,278		10,897
Available-for-sale Securities, Gross Unrealized Gain	0		0
Available-for-sale Securities, Gross Unrealized Loss	(294)		(466)
Available-for-sale	9,984		10,431
Held-to-maturity Securities, Amortized Cost	5,225		5,079
Held-to-maturity Securities, Unrecognized Holding Gain	0		0
Held-to-maturity Securities, Unrecognized Holding Loss	(144)		(283)
Held-to-maturity Securities, Fair Value	5,081	[1]	4,796
Other mortgage-backed securities
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	48		49
Available-for-sale Securities, Gross Unrealized Gain	0		0
Available-for-sale Securities, Gross Unrealized Loss	0		0
Available-for-sale	48		49
Mortgage-backed securities
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	27,506		29,078
Available-for-sale Securities, Gross Unrealized Gain	2		0
Available-for-sale Securities, Gross Unrealized Loss	(792)		(1,337)
Available-for-sale	26,716		27,741
Held-to-maturity Securities, Amortized Cost			8,822
Held-to-maturity Securities, Unrecognized Holding Gain			225
Held-to-maturity Securities, Unrecognized Holding Loss			(283)
Held-to-maturity Securities, Fair Value			8,764
US Government Agency Securities
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	54,737		55,155
Available-for-sale Securities, Gross Unrealized Gain	12		0
Available-for-sale Securities, Gross Unrealized Loss	(1,914)		(2,966)
Available-for-sale	52,835		52,189
Other
Schedule of Investments [Line Items]
Available-for-sale Securities, Amortized Cost Basis	15,533		10,000
Available-for-sale Securities, Gross Unrealized Gain	0		0
Available-for-sale Securities, Gross Unrealized Loss	(370)		(469)
Available-for-sale	15,163		9,531
Held-to-maturity Securities, Amortized Cost			207
Held-to-maturity Securities, Unrecognized Holding Gain			0
Held-to-maturity Securities, Unrecognized Holding Loss			0
Held-to-maturity Securities, Fair Value			$ 207

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