MBS And Other Investments: Schedule of Contractual maturities of debt securities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Held-to-maturity Securities, Amortized Cost:
Due after one year to five years	$ 22
Due after five to ten years	22
Due after ten years	2,693
Total	2,737
Held-to-maturity Securities, Estimated Fair Value:
Due after one year to five years	23
Due after five to ten years	22
Due after ten years	3,488
Total	3,533
Available-for-sale Securities, Amortized Cost:
Due after one year to five years	28
Due after five to ten years	28
Due after ten years	2,892
Total	2,948
Available-for-sale Securities, Estimated Fair Value:
Due after one year to five years	28
Due after five to ten years	29
Due after ten years	3,086
Total	$ 3,143