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MBS And Other Investments: Schedule of Other than Temporary Impairments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2012
Held to Maturity
Net OTTI recognized in earnings	$ (52)		$ (57)		$ (46)
Held-to-maturity Securities
Held to Maturity
Total OTTI	(83)		(13)		(156)
Portion of OTTI recognized in other comprehensive (income) loss (before income taxes)	52		(32)		(8)
Net OTTI recognized in earnings	(31)	[1]	(45)	[1]	(164)	[1]
Available-for-sale Securities
Available for Sale
Total OTTI	90		(2)		(50)
Portion of OTTI recognized in other comprehensive (income) loss (before income taxes)	0		0		0
Net OTTI recognized in earnings	$ 90	[1]	$ (2)	[1]	$ (50)	[1]
[1] Represents OTTI related to credit losses.

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The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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The amount by which the fair value of an investment in debt securities categorized as Held-to-maturity is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Amount before tax of other than temporary impairment (OTTI) on investment in available-for-sale debt security, recognized in other comprehensive loss.

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Amount before tax of other than temporary impairment (OTTI) on investment in held-to-maturity debt security, recognized in other comprehensive loss.

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The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis.

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The amount of other than temporary impairment losses on investments in debt securities categorized as Held-to-maturity which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) of investments in debt securities due to credit losses and other than temporary impairments due to other than credit losses when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis.

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