MBS And Other Investments: Narrative-Realized Gains (Losses) (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2013 security	Jun. 30, 2012 security	Jun. 30, 2013 security	Jun. 30, 2012 security	Sep. 30, 2012
Investments [Abstract]
Gain on sale of securities	$ 0	$ 22,000	$ 0	$ 20,000
Loss on sale of securities	188,000	242,000	571,000	661,000
Held-to-maturity securities, realized loss, number of securities	12	19	17	24
Available-for-sale securities, realized loss, number of securities	6	1	6	1
Security owned and pledged as collateral	$ 4,870,000		$ 4,870,000		$ 5,700,000