Investment Securities Sales and Calls of Available-For-Sale portfolio (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
AFS portfolio Sales and Calls [Abstract]
Proceeds from Sale of Available-for-sale Securities	$ 38,991	$ 31,567	$ 16,847
Available-for-sale Securities, Gross Realized Gains	513	174	8
Available-for-sale Securities, Gross Realized Losses	2	0	0
Proceeds from Sale of Held-to-maturity Securities	2,814	0	0
Held-to-Maturity Securities, Gross Realized Gains	43	0	0
Held-to-Maturity Securities, Gross Realized Losses	$ 2	$ 0	$ 0