8. Fair Value: Fair Value Inputs, Level 3 Financial Instruments, Quantitative Information (Details) - Fair Value, Measurements, Recurring - Fair Value, Inputs, Level 3 - Major Types of Debt and Equity Securities	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Minimum
Constant prepayment rate	7.19%	7.74%
Weighted average discount rate		9.11%
Weighted average life	3 years 10 months 13 days	4 years 29 days
Maximum
Constant prepayment rate	7.46%	7.99%
Weighted average discount rate		9.11%
Weighted average life	3 years 10 months 28 days	4 years 1 month 10 days