Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Schedule Of Components Of Comprehensive Income (loss)
Net income (loss)	$ 3,062	$ 3,842	$ 7,491	$ 159
Other comprehensive income (loss)
Unrealized holding gains (losses) on available-for-sale securities arising during the period, net of tax	44	(80)	401	(82)
Less :reclassification adjustment for realized gains included in net income (loss), net of tax	(2)	(106)	(109)	(236)
Other comprehensive income (loss)	42	(186)	292	(318)
Comprehensive income (loss)	$ 3,104	$ 3,656	$ 7,783	$ (159)