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MBS And Other Investments: Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Sep. 30, 2015
Held to maturity
Amortized Cost	$ 7,824	$ 7,913
Gross Unrealized Gains	892	994
Gross Unrealized Losses	(31)	(13)
Estimated Fair Value	8,685	8,894
Available for sale
Amortized Cost	1,374	1,387
Gross Unrealized Gains	28	34
Gross Unrealized Losses	(40)	(29)
Estimated Fair Value	1,362	1,392
Mortgage-backed Securities, U.S. government agencies
Held to maturity
Amortized Cost	786	828
Gross Unrealized Gains	23	23
Gross Unrealized Losses	(1)	(1)
Estimated Fair Value	808	850
Available for sale
Amortized Cost	374	387
Gross Unrealized Gains	28	34
Gross Unrealized Losses	(1)	0
Estimated Fair Value	401	421
Mortgage-backed Securities, Private label residential
Held to maturity
Amortized Cost	1,033	1,081
Gross Unrealized Gains	850	894
Gross Unrealized Losses	(5)	(12)
Estimated Fair Value	1,878	1,963
U.S. agency securities
Held to maturity
Amortized Cost	6,005	6,004
Gross Unrealized Gains	19	77
Gross Unrealized Losses	(25)	0
Estimated Fair Value	5,999	6,081
Mutual funds
Available for sale
Amortized Cost	1,000	1,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(39)	(29)
Estimated Fair Value	$ 961	$ 971

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