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Mortgage-backed Securities: Schedule of Temporarily Impaired Mortgage-backed securities, Fair Value and Unrealized Losses (Details) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014
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Real estate mortgage investment conduits |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | $ 9,946 |  | $ 4,996
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (54) |  | (77)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 9,946 |  | 4,996
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (54) |  | (77)
Mortgage-backed |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 4,465 | [1] | 49,177
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (17) | [1] | (547)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 5,358 | [1] |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (194) | [1] |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 9,823 | [1] | 49,177
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (211) | [1] | (547)
Other mortgage-backed securities |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 3,514 | [2] | 1,526
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (29) | [2] | (13)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 3,514 | [2] | 1,526
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (29) | [2] | (13)
Total Real Estate mortgage investment conduits and mortgage-backed securities |  |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 17,925 |  | 55,699
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (100) |  | (637)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 5,358 |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (194) |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 23,283 |  | 55,699
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | $ (294) |  | $ (637)
[1] | Comprised of FHLMC and FNMA issued securities.
[2] | Comprised of SBA issued securities.

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- Definition Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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