Intangible Assets and Mortgage Servicing Rights: Schedule of Intangible Estimated Annual Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Core Deposit Intangibles
Estimated Amortization Expense Year Ended December 31, 2012	$ 2,092
Estimated Amortization Expense Year Ended December 31, 2013	1,908
Estimated Amortization Expense Year Ended December 31, 2014	1,724
Estimated Amortization Expense Year Ended December 31, 2015	598
Total Estimated Amortizataion Expense	6,322
Other Intangibles
Estimated Amortization Expense Year Ended December 31, 2012	2
Estimated Amortization Expense Year Ended December 31, 2013	2
Estimated Amortization Expense Year Ended December 31, 2014	2
Estimated Amortization Expense Year Ended December 31, 2015	1
Estimated Amortization Expense Thereafter	2
Total Estimated Amortizataion Expense	9
Total Intangibles
Estimated Amortization Expense Year Ended December 31, 2012	2,094
Estimated Amortization Expense Year Ended December 31, 2013	1,910
Estimated Amortization Expense Year Ended December 31, 2014	1,726
Estimated Amortization Expense Year Ended December 31, 2015	599
Estimated Amortization Expense Thereafter	2
Total Estimated Amortizataion Expense	$ 6,331