Fair Value Accounting and Measurement: Schedule of Fair Value Measurement of Assets and Liabilities Measured on a Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011
Fair Value Measurement Assets and Liabilities
Impaired loans	$ 44,428	$ 47,959
Real Estate Owned	25,816	42,965
Level 3 - Significant Unobservable Inputs
Impaired loans	44,428	47,959
Real Estate Owned	25,816	42,965
Losses Recognized During the Period
Impaired loans	13,352	21,902
Real Estate Owned	$ 3,357	$ 7,325