Investment Securities Text Figures (Details) (USD $)	6 Months Ended		12 Months Ended
	Sep. 30, 2014		Mar. 31, 2014
Schedule of Investments [Line Items]
Number of agencies with unrealized loss more than 12 months	9
Available-for-sale	$ 94,714,000		$ 89,461,000
Percentage Available-for-sale Securities	91.60%
Held-to-maturity	8,654,000		9,029,000
Held-to-maturity Securities, Amortized Cost	8,654,000	[1]	9,029,000
Percentage Held-to-maturity Securities	8.40%
Trading Securities	0
Number of securities with unrealized loss	32		35
US Government Agency Securities
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	69.20%
Available-for-sale	52,835,000		52,189,000
Mortgage-backed securities
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	30.80%
Number of MBS with unrealized loss more than 12 months	17
Available-for-sale	26,716,000		27,741,000
Held-to-maturity Securities, Amortized Cost			$ 8,822,000

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