Loans Receivable and The Allowance For Loan Losses: Schedule of Troubled Debt Restructurings (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Consumer
Troubled Debt Restructurings Accrual Status	$ 660	$ 2,935
Troubled Debt Restructurings Nonaccrual Status	253	3,974
Troubled Debt Restructurings Total Modifications	913	6,909
Consumer secured by one- to four-family
Troubled Debt Restructurings Accrual Status	531	371
Troubled Debt Restructurings Nonaccrual Status	626	549
Troubled Debt Restructurings Total Modifications	1,157	920
Total consumer
Troubled Debt Restructurings Accrual Status	1,191	3,306
Troubled Debt Restructurings Nonaccrual Status	879	4,523
Troubled Debt Restructurings Total Modifications	2,070	7,829
Total troubled debt restructurings
Troubled Debt Restructurings Accrual Status	58,010	54,533
Troubled Debt Restructurings Nonaccrual Status	7,268	11,350
Troubled Debt Restructurings Total Modifications	65,278	65,883
Commercial real estate owner occupied
Troubled Debt Restructurings Accrual Status	827
Troubled Debt Restructurings Nonaccrual Status	28	142
Troubled Debt Restructurings Total Modifications	855	142
Commercial real estate investment properties
Troubled Debt Restructurings Accrual Status	3,859	7,751
Troubled Debt Restructurings Nonaccrual Status	2,246	1,822
Troubled Debt Restructurings Total Modifications	6,105	9,573
Multifamily real estate
Troubled Debt Restructurings Accrual Status	7,136	2,088
Troubled Debt Restructurings Total Modifications	7,136	2,088
One- to four-family construction
Troubled Debt Restructurings Accrual Status	9,383	8,362
Troubled Debt Restructurings Nonaccrual Status	268	271
Troubled Debt Restructurings Total Modifications	9,651	8,633
Land development residential
Troubled Debt Restructurings Accrual Status		5,334
Troubled Debt Restructurings Nonaccrual Status	326	557
Troubled Debt Restructurings Total Modifications	326	5,891
Land development commercial
Troubled Debt Restructurings Nonaccrual Status	43	949
Troubled Debt Restructurings Total Modifications	43	949
Commercial business
Troubled Debt Restructurings Accrual Status	8,800	4,401
Troubled Debt Restructurings Nonaccrual Status	352
Troubled Debt Restructurings Total Modifications	9,152	4,401
One- to four-family residential
Troubled Debt Restructurings Accrual Status	26,814	23,291
Troubled Debt Restructurings Nonaccrual Status	3,126	3,086
Troubled Debt Restructurings Total Modifications	$ 29,940	$ 26,377