Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net income	$ 4,248	$ 2,706
Other comprehensive income (loss), net of tax:
Unrealized holding gains (losses) on available-for-sale securities arising during the period, net of tax provision of $36 and tax benefit of $110, respectively	240	(175)
Reclassification adjustment for realized gains included in net income, net of tax provision of $1 and $3, respectively	(3)	(5)
Other comprehensive income (loss)	237	(180)
Comprehensive income	$ 4,485	$ 2,526