8. Fair Value: Fair Value Assets Measured on Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Impaired Loans, Carrying Value
Total fair value gain (loss) during the period	$ (27)	$ (59)
Assets, Fair Value Disclosure, Nonrecurring	1,833	1,304
Other Real Estate Owned
Total fair value gain (loss) during the period	0	(157)
Assets, Fair Value Disclosure, Nonrecurring	433	433
Fair Value, Inputs, Level 1 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring		0
Fair Value, Inputs, Level 1 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring		0
Fair Value, Inputs, Level 2 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring	1,833	0
Fair Value, Inputs, Level 2 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	433	0
Fair Value, Inputs, Level 3 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring		1,304
Fair Value, Inputs, Level 3 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring		$ 433