11. Fair Value Measurements: Schedule of Fair Value of Assets Measured on a Nonrecurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Impaired Loans
Assets, Fair Value Disclosure, Nonrecurring	$ 2,424	$ 1,731
Total fair value loss during the year	0	(142)
Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	480	564
Total fair value loss during the year	39	(13)
Fair Value, Inputs, Level 1 | Impaired Loans
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
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
Assets, Fair Value Disclosure, Nonrecurring	2,424	1,731
Fair Value, Inputs, Level 3 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	$ 480	$ 564