6. Loans and Allowance For Loan Losses: Schedule of Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Nonaccrual	$ 2,340	$ 2,087
Past Due Loans	3,383	2,952
Current Loans	22,147	23,883
Loans and Leases Receivable, Gross	25,530	26,835
Financing Receivables 30 To 89 Days Past Due
Past Due Loans	849	234
Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	194	631
Commercial And Industrial
Nonaccrual	319	108
Past Due Loans	345	378
Current Loans	1,946	1,771
Loans and Leases Receivable, Gross	2,291	2,149
Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	26	27
Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	243
Commercial Real Estate Portfolio Segment
Nonaccrual	1,713	1,559
Past Due Loans	2,415	1,842
Current Loans	18,176	19,646
Loans and Leases Receivable, Gross	20,591	21,488
Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	702	110
Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	173
Consumer Real Estate
Nonaccrual	308	420
Past Due Loans	463	632
Current Loans	1,378	1,600
Loans and Leases Receivable, Gross	1,841	2,232
Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	32	59
Consumer Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	123	153
Consumer Real Estate | Home Equity Line of Credit
Nonaccrual	0	0
Past Due Loans	0	0
Current Loans	17	19
Loans and Leases Receivable, Gross	17	19
Consumer Real Estate | Home Equity Line of Credit | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
Consumer Real Estate | Home Equity Line of Credit | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
Real estate
Nonaccrual	2,021	1,979
Past Due Loans	2,878	2,474
Current Loans	19,554	21,246
Loans and Leases Receivable, Gross	22,432	23,720
Real estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	734	169
Real estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	123	326
Consumer And Other Loans
Nonaccrual	0	0
Past Due Loans	160	100
Current Loans	647	866
Loans and Leases Receivable, Gross	807	966
Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	89	38
Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	71	62
Commercial | Commercial And Industrial
Nonaccrual	0	33
Past Due Loans	26	33
Current Loans	823	857
Loans and Leases Receivable, Gross	849	890
Commercial | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	26	0
Commercial | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
SBA Loans | Commercial And Industrial
Nonaccrual	0
Past Due Loans	0
Current Loans	41
Loans and Leases Receivable, Gross	41
SBA Loans | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0
SBA Loans | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0
SBA Loans | Commercial Real Estate Portfolio Segment
Nonaccrual	244	93
Past Due Loans	244	255
Current Loans	210	0
Loans and Leases Receivable, Gross	454	255
SBA Loans | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
SBA Loans | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	162
Asset Based Loans | Commercial And Industrial
Nonaccrual	319	75
Past Due Loans	319	345
Current Loans	1,082	914
Loans and Leases Receivable, Gross	1,401	1,259
Asset Based Loans | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	27
Asset Based Loans | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	243
Commercial Mortgages | Commercial Real Estate Portfolio Segment
Nonaccrual	1,280	1,270
Past Due Loans	1,941	1,281
Current Loans	9,105	10,104
Loans and Leases Receivable, Gross	11,046	11,385
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	661	0
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	11
Construction | Commercial Real Estate Portfolio Segment
Nonaccrual	0	0
Past Due Loans	0	0
Current Loans	406	542
Loans and Leases Receivable, Gross	406	542
Construction | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
Construction | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
Religious Organizations | Commercial Real Estate Portfolio Segment
Nonaccrual	189	196
Past Due Loans	230	306
Current Loans	8,455	9,000
Loans and Leases Receivable, Gross	8,685	9,306
Religious Organizations | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	41	0
Religious Organizations | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
Home Equity Loans | Consumer Real Estate
Nonaccrual	308	345
Past Due Loans	341	498
Current Loans	321	301
Loans and Leases Receivable, Gross	752	799
Home Equity Loans | Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
Home Equity Loans | Consumer Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	123	153
Family Residential Mortgage | Consumer Real Estate
Nonaccrual	0	75
Past Due Loans	32	134
Current Loans	1,040	1,280
Loans and Leases Receivable, Gross	1,072	1,414
Family Residential Mortgage | Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	32	59
Family Residential Mortgage | Consumer Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
Student Loans | Consumer And Other Loans
Nonaccrual	0	0
Past Due Loans	158	99
Current Loans	551	756
Loans and Leases Receivable, Gross	709	855
Student Loans | Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	89	38
Student Loans | Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	69	61
Other | Consumer And Other Loans
Nonaccrual	0	0
Past Due Loans	2	1
Current Loans	96	110
Loans and Leases Receivable, Gross	98	111
Other | Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
Other | Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	$ 2	$ 1