6. Loans and Allowance For Loan Losses: Interest income on impaired loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Average Recorded Investment	$ 1,910	$ 1,763
Interest recognized on impaired loans	1	2
Commercial And Industrial
Average Recorded Investment	412	405
Interest recognized on impaired loans	1	0
Commercial And Industrial | Commercial
Average Recorded Investment	335	357
Interest recognized on impaired loans	0	0
Commercial And Industrial | SBA Loans
Average Recorded Investment	62	48
Interest recognized on impaired loans	0	0
Commercial And Industrial | Asset Based Loans
Average Recorded Investment	15	0
Interest recognized on impaired loans	1	0
Commercial Real Estate
Average Recorded Investment	1,498	1,358
Interest recognized on impaired loans	0	2
Commercial Real Estate | SBA Loans
Average Recorded Investment	116	161
Interest recognized on impaired loans	0	0
Commercial Real Estate | Commercial Mortgages
Average Recorded Investment	869	573
Interest recognized on impaired loans	0	0
Commercial Real Estate | Religious Organizations
Average Recorded Investment	513	624
Interest recognized on impaired loans	$ 0	$ 2