8. Fair Value: Schedule of Fair Value of Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring	$ 1,594	$ 1,731
Total fair value loss during the year	(44)	(142)
Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	708	564
Total fair value loss during the year	52	(13)
Fair Value, Inputs, Level 1 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 1 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 2 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 2 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Inputs, Level 3 | Impaired Loans, Carrying Value
Assets, Fair Value Disclosure, Nonrecurring	1,594	1,731
Fair Value, Inputs, Level 3 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	$ 708	$ 564