Fair Value Measurements Fair Value on a Recurring basis (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mortgage servicing rights	$ 250	$ 265
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	5,668	5,665
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	11,503	11,596
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	10,374	10,431
Other	48	49
US Government Agency securities	52,932	52,189
Other Securities, AFS, Fair Value Disclosure	15,190	9,531
Available-for-sale	95,715	89,461
Assets, Fair Value Disclosure	95,965	89,726
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mortgage servicing rights	0	0
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	0	0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	0	0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	0	0
Other		0
US Government Agency securities	0	0
Other Securities, AFS, Fair Value Disclosure	0	0
Available-for-sale	0	0
Assets, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mortgage servicing rights	0	0
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	5,668	5,665
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	11,503	11,596
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	10,374	10,431
Other	0	0
US Government Agency securities	52,932	52,189
Other Securities, AFS, Fair Value Disclosure	15,190	9,531
Available-for-sale	95,667	89,412
Assets, Fair Value Disclosure	95,667	89,412
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Mortgage servicing rights	250	265
Government National Mortgage Asscociation, AFS, Fair Value Disclosure	0	0
Federal Home Loan Mortgage Corp., AFS, Fair Value Disclosure	0	0
Federal National Mortgage Corporation, AFS, Fair Value Disclosure	0	0
Other	48	49
US Government Agency securities	0	0
Other Securities, AFS, Fair Value Disclosure	0	0
Available-for-sale	48	49
Assets, Fair Value Disclosure	$ 298	$ 314