Investment Securities Investment Securities Carrying Value (Amortized Cost) and Fair Value by remaining period of contractual maturity (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Mar. 31, 2014
INVESTMENT SECURITIES [Abstract]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 5,533
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	5,533
Available-for-sale, Securities, Debt Maturities, within One Year, Weighted Average Rate	0.25%
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	13,000
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	12,893
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Rate	1.42%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	18,973
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	18,148
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate	1.69%
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	60,270
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	58,140
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Rate	2.02%
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	97,776
Available-for-sale	94,714		89,461
Available-for-sale Securities, Debt Maturities, Weighted Average Rate	1.77%
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	5,032
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	4,888
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate	2.38%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	3,622
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	3,834
Held-to-maturity Securities, Debt Maturities, after Ten Years, Weighted Average Rate	3.74%
Held-to-maturity	8,654		9,029
Held-to-maturity Securities, Fair Value	$ 8,722	[1]	$ 8,971
Held-to-maturity Securities, Debt Maturities, Weighted Average Rate	2.95%

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