Fair Value Measurements Assets within Level 3 of Valuation Hierarchy (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale	$ 89,461
Available-for-sale	95,715
Change in unrealized loss of securities available-for sale	1,562	(4,119)
Mortgage servicing rights	265
Mortgage servicing rights	250
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Available-for-sale	49	50
Available-for-sale Securities, Gross Unrealized Gain (Loss)	0	0
Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities	(1)	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net	0	0
Available-for-sale	48	50
Change in unrealized loss of securities available-for sale	0	0
Mortgage servicing rights	265	275
Mortgage Servicing unrealized loss	(15)	0
Payments for (Proceeds from) Mortgage Servicing Rights	0	0
Mortgage servicing rights	250	275
Change in unrealized gains and losses to instruments held	$ (15)	$ 0