Accumulated Other Comprehensive Income (Components of Accumulated Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Jun. 30, 2012
Accumulated Other Comprehensive Income [Abstract]
Unrealized gains on available-for-sale securities, net of tax	$ 1,127	$ 1,280
Unrealized loss on securities transferred to held-to-maturity, net of tax	(18)	(35)
Net losses and past service liability for defined benefit plan, net of tax	(1,049)	(1,072)
Accumulated other comprehensive income	$ 60	$ 173