MBS And Other Investments: Schedule of Contractual maturities of debt securities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013
Held-to-maturity Securities, Amortized Cost:
Due within one year	$ 0
Due after one year to five years	23
Due after five to ten years	27
Due after ten years	2,842
Total	2,892
Held-to-maturity Securities, Estimated Fair Value:
Due within one year	0
Due after one year to five years	25
Due after five to ten years	26
Due after ten years	3,588
Total	3,639
Available-for-sale Securities, Amortized Cost:
Due within one year	0
Due after one year to five years	30
Due after five to ten years	18
Due after ten years	3,122
Total	3,170
Available-for-sale Securities, Estimated Fair Value:
Due within one year	0
Due after one year to five years	31
Due after five to ten years	18
Due after ten years	3,360
Total	$ 3,409