7. Fair Value: Schedule of Fair Value of Assets on a Nonrecurring Basis (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Impaired Loans
Assets, Fair Value Disclosure, Nonrecurring		$ 1,501
Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	743	775
Fair Value, Option, Changes in Fair Value, Gain (Loss)	(5)	(233)
Fair Value, Inputs, Level 3 | Impaired Loans
Assets, Fair Value Disclosure, Nonrecurring		1,501
Fair Value, Inputs, Level 3 | Other Real Estate Owned
Assets, Fair Value Disclosure, Nonrecurring	$ 743	$ 775