6. Loans and Allowance For Loan Losses: Schedule of Interest Income on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Average Recorded Investment	$ 1,820	$ 1,979	$ 1,861	$ 1,952
Interest recognized on impaired loans	2	3	6	9
Commercial And Industrial
Average Recorded Investment	246	252	282	279
Interest recognized on impaired loans	2	3	4	3
Commercial And Industrial | Commercial
Average Recorded Investment	160	204	188	231
Interest recognized on impaired loans	0	3	0	3
Commercial And Industrial | SBA Loans
Average Recorded Investment	40	48	58	48
Interest recognized on impaired loans	1	0	2	0
Commercial And Industrial | Asset Based Loans
Average Recorded Investment	46	0	36	0
Interest recognized on impaired loans	1	0	2	0
Commercial Real Estate Portfolio Segment
Average Recorded Investment	1,574	1,727	1,579	1,673
Interest recognized on impaired loans	0	0	2	6
Commercial Real Estate Portfolio Segment | SBA Loans
Average Recorded Investment	110	122	112	125
Interest recognized on impaired loans	0	0	0	1
Commercial Real Estate Portfolio Segment | Commercial Mortgages
Average Recorded Investment	976	995	971	931
Interest recognized on impaired loans	0	0	0	3
Commercial Real Estate Portfolio Segment | Religious Organizations
Average Recorded Investment	488	610	496	617
Interest recognized on impaired loans	$ 0	$ 0	$ 2	$ 2