4. Loans and Allowance For Loan Losses: Schedule of Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Past Due Loans	$ 2,952	$ 3,635
Nonaccrual	2,087	3,003
Current Loans	23,883	29,884
Loans and Leases Receivable, Gross	26,835	33,519
Financing Receivables 30 To 89 Days Past Due
Past Due Loans	234	339
Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	631	293
Commercial And Industrial
Past Due Loans	378	450
Nonaccrual	108	439
Current Loans	1,771	2,612
Loans and Leases Receivable, Gross	2,149	3,062
Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	27	11
Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	243	0
Commercial Real Estate Portfolio Segment
Past Due Loans	1,842	2,285
Nonaccrual	1,559	2,077
Current Loans	19,646	24,129
Loans and Leases Receivable, Gross	21,488	26,414
Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	110	169
Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	173	39
Consumer Real Estate
Past Due Loans	632	703
Nonaccrual	420	487
Current Loans	1,600	2,138
Loans and Leases Receivable, Gross	2,232	2,841
Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	59	91
Consumer Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	153	125
Consumer Real Estate | Home Equity Line of Credit
Past Due Loans	0	0
Nonaccrual	0	0
Current Loans	19	20
Loans and Leases Receivable, Gross	19	20
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
Consumer And Other Loans
Past Due Loans	100	197
Nonaccrual	0	0
Current Loans	866	1,005
Loans and Leases Receivable, Gross	966	1,202
Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	38	68
Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	62	129
Real estate
Past Due Loans		2,988
Nonaccrual		2,564
Current Loans		26,267
Loans and Leases Receivable, Gross		29,255
Real estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans		260
Real estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans		164
Commercial | Commercial And Industrial
Past Due Loans	33	110
Nonaccrual	33	110
Current Loans	857	1,425
Loans and Leases Receivable, Gross	890	1,535
Commercial | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
Commercial | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
S B A Loans | Commercial And Industrial
Past Due Loans	0	40
Nonaccrual	0	40
Current Loans	0	0
Loans and Leases Receivable, Gross	0	40
S B A Loans | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
S B A Loans | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	0	0
S B A Loans | Commercial Real Estate Portfolio Segment
Past Due Loans	255	271
Nonaccrual	93	271
Current Loans	0	82
Loans and Leases Receivable, Gross	255	353
S B A Loans | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	0
S B A Loans | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	162	0
Asset Based Loans | Commercial And Industrial
Past Due Loans	345	300
Nonaccrual	75	289
Current Loans	914	1,187
Loans and Leases Receivable, Gross	1,259	1,487
Asset Based Loans | Commercial And Industrial | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	27	11
Asset Based Loans | Commercial And Industrial | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	243	0
Commercial Mortgages | Commercial Real Estate Portfolio Segment
Past Due Loans	1,281	1,543
Nonaccrual	1,270	1,335
Current Loans	10,104	12,231
Loans and Leases Receivable, Gross	11,385	13,774
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	169
Commercial Mortgages | Commercial Real Estate Portfolio Segment | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	11	39
Construction | Commercial Real Estate Portfolio Segment
Past Due Loans	0	0
Nonaccrual	0	0
Current Loans	542	2,175
Loans and Leases Receivable, Gross	542	2,175
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
Past Due Loans	306	471
Nonaccrual	196	471
Current Loans	9,000	9,641
Loans and Leases Receivable, Gross	9,306	10,112
Religious Organizations | Commercial Real Estate Portfolio Segment | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	110	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
Past Due Loans	498	539
Nonaccrual	345	358
Current Loans	301	358
Loans and Leases Receivable, Gross	799	897
Home Equity Loans | Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	56
Home Equity Loans | Consumer Real Estate | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	153	125
Family Residential Mortgage | Consumer Real Estate
Past Due Loans	134	164
Nonaccrual	75	129
Current Loans	1,280	1,760
Loans and Leases Receivable, Gross	1,414	1,924
Family Residential Mortgage | Consumer Real Estate | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	59	35
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
Past Due Loans	99	195
Nonaccrual	0	0
Current Loans	756	886
Loans and Leases Receivable, Gross	855	1,081
Student Loans | Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	38	66
Student Loans | Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	61	129
Other | Consumer And Other Loans
Past Due Loans	1	2
Nonaccrual	0	0
Current Loans	110	119
Loans and Leases Receivable, Gross	111	121
Other | Consumer And Other Loans | Financing Receivables 30 To 89 Days Past Due
Past Due Loans	0	2
Other | Consumer And Other Loans | Financing Receivables, Equal to Greater than 90 Days Past Due
Past Due Loans	$ 1	$ 0