Note 5. Fair Value Measurements: Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2013 Residential Mortgage Backed Securities	Jun. 30, 2014 Commercial Mortgage Backed Securities	Jun. 30, 2013 Commercial Mortgage Backed Securities	Jun. 30, 2014 Commercial Mortgage Backed Securities	Dec. 31, 2012 Commercial Mortgage Backed Securities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	$ 348	$ 230	$ 237	$ 636	$ 408	$ 348	$ 230	$ 237	$ 228
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)	14	(2)	125	(209)	(209)	14	(2)	125
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value	362	228	362	228		362	228	362	228
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales				(415)	(415)
Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Repayments And Amortization				(9)	(9)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings				$ 225	$ 225