Investment Securities Investment Securities Carrying Value (Amortized Cost) and Fair Value by remaining period of contractual maturity (Details) (USD $) In Thousands, unless otherwise specified	Jun. 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	8,000
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	7,995
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Weighted Average Rate	0.98%
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	24,106
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	23,153
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate	1.65%
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	61,289
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	59,034
Available-for-sale Securities, Debt Maturities, after Ten Years, Weighted Average Rate	2.07%
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis	98,928
Available-for-sale	95,715		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	5,056
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	4,924
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Weighted Average Rate	2.37%
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	3,774
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	4,016
Held-to-maturity Securities, Debt Maturities, after Ten Years, Weighted Average Rate	3.72%
Held-to-maturity	8,830		9,029
Held-to-maturity Securities, Fair Value	$ 8,940	[1]	$ 8,971	[1]
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.