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, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Average Recorded Investment	$ 2,079		$ 1,820	$ 2,462	$ 1,861
Interest recognized on impaired loans	1		$ 2	8	6
Commercial And Industrial
Average Recorded Investment	437	$ 246		437	282
Interest recognized on impaired loans	0	2		0	4
Commercial Real Estate Portfolio Segment
Average Recorded Investment	1,642	1,574		2,025	1,579
Interest recognized on impaired loans	1	0		8	2
Commercial | Commercial And Industrial
Average Recorded Investment	109	160		109	188
Interest recognized on impaired loans	0	0		0	0
SBA Loans | Commercial And Industrial
Average Recorded Investment	39	40		39	58
Interest recognized on impaired loans	0	1		0	2
SBA Loans | Commercial Real Estate Portfolio Segment
Average Recorded Investment	162	110		304	112
Interest recognized on impaired loans	0	0		3	0
Asset Based Loans | Commercial And Industrial
Average Recorded Investment	289	46		289	36
Interest recognized on impaired loans	0	1		0	2
Commercial Mortgages | Commercial Real Estate Portfolio Segment
Average Recorded Investment	1,280	976		1,422	971
Interest recognized on impaired loans	1	0		5	0
Religious Organizations | Commercial Real Estate Portfolio Segment
Average Recorded Investment	200	488		299	496
Interest recognized on impaired loans	$ 0	$ 0		$ 0	$ 2