Fair Value Measurements Assets within Level 3 of Valuation Hierarchy (Details) (USD $)	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale			$ 89,461,000
Available-for-sale	94,714,000		94,714,000
Change in unrealized loss of securities available-for sale	150,000	(1,314,000)	1,713,000	(5,433,000)
Mortgage servicing rights			265,000
Mortgage servicing rights	239,000		239,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale			49,000	50,000
Available-for-sale Securities, Gross Unrealized Gain (Loss)			0	0
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities			(1,000)	(1,000)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net			0	0
Available-for-sale	48,000	49,000	48,000	49,000
Change in unrealized loss of securities available-for sale			0	0
Mortgage servicing rights			265,000	275,000
Mortgage Servicing unrealized loss	(26,000)	1,000	(26,000)	1,000
Payments for (Proceeds from) Mortgage Servicing Rights			0	0
Mortgage servicing rights	239,000	276,000	239,000	276,000
Change in unrealized gains and losses to instruments held			$ (25,000)	$ 0