Investment Securities Text Figures (Details) (USD $)	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Mar. 31, 2013
Schedule of Investments [Line Items]
AFS Fair Value	$ 84,600,000
Percentage Available-for-sale Securities	0.00%
Held to maturity amortized cost	12,100,000
Held-to-maturity Securities	$ 103,127,000	$ 124,052,000
Percentage Held-to-maturity Securities	12.50%
Number of securities with unrealized loss	33	13
Number of agencies with unrealized loss more than 12 months	4
US Government Agency Securities
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	46.10%
percentage of securities in a loss position for more than 12 months	8.20%
Collateralized Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Percentage Available-for-Sale, Continuos Unrealized Loss Position	24.60%
Number of MBS with unrealized loss more than 12 months	2
percentage of securities in a loss position for more than 12 months	10.00%