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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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