6. Loans and Allowance for Loan Losses: Schedule of Age Analysis of Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Thousand
Past Due Loans	$ 2,202	$ 2,192
Nonaccrual	1,836	1,616
Current Loans	22,010	23,533
Loans and Leases Receivable, Gross	24,212	25,725
Commercial And Industrial
Past Due Loans	101	76
Nonaccrual	86	76
Current Loans	1,997	1,722
Loans and Leases Receivable, Gross	2,098	1,798
Commercial And Industrial | Commercial
Past Due Loans	15	0
Nonaccrual	0	0
Current Loans	1,031	909
Loans and Leases Receivable, Gross	1,046	909
Commercial And Industrial | :S B A Loans
Past Due Loans	0	0
Nonaccrual	0	0
Current Loans	66	19
Loans and Leases Receivable, Gross	66	19
Commercial And Industrial | Asset Based
Past Due Loans	86	76
Nonaccrual	86	76
Current Loans	900	794
Loans and Leases Receivable, Gross	986	870
Commercial Real Estate Portfolio Segment
Past Due Loans	1,473	1,461
Nonaccrual	1,431	1,203
Current Loans	18,283	19,928
Loans and Leases Receivable, Gross	19,756	21,389
Commercial Real Estate Portfolio Segment | :S B A Loans
Past Due Loans	78	81
Nonaccrual	78	81
Current Loans	184	588
Loans and Leases Receivable, Gross	262	669
Commercial Real Estate Portfolio Segment | Commercial Mortgages
Past Due Loans	1,211	1,193
Nonaccrual	1,169	935
Current Loans	9,871	10,478
Loans and Leases Receivable, Gross	11,082	11,671
Commercial Real Estate Portfolio Segment | Construction
Past Due Loans	0	0
Nonaccrual	0	0
Current Loans	106	419
Loans and Leases Receivable, Gross	106	419
Commercial Real Estate Portfolio Segment | Religious Organizations
Past Due Loans	184	187
Nonaccrual	184	187
Current Loans	8,122	8,443
Loans and Leases Receivable, Gross	8,306	8,630
Consumer Real Estate
Past Due Loans	468	561
Nonaccrual	319	337
Current Loans	1,138	1,168
Loans and Leases Receivable, Gross	1,606	1,729
Consumer Real Estate | Home Equity Line of Credit
Past Due Loans	0	0
Nonaccrual	0	0
Current Loans	16	17
Loans and Leases Receivable, Gross	16	17
Consumer Real Estate | Home Equity Loans
Past Due Loans	410	450
Nonaccrual	287	289
Current Loans	246	191
Loans and Leases Receivable, Gross	656	641
Consumer Real Estate | Family Residential Mortgage
Past Due Loans	58	112
Nonaccrual	32	48
Current Loans	876	959
Loans and Leases Receivable, Gross	934	1,071
Consumer And Other Loans
Past Due Loans	160	94
Nonaccrual	0	0
Current Loans	592	715
Loans and Leases Receivable, Gross	752	809
Consumer And Other Loans | Student Loans
Past Due Loans	158	87
Nonaccrual	0	0
Current Loans	490	613
Loans and Leases Receivable, Gross	648	700
Consumer And Other Loans | Other 1
Past Due Loans	2	7
Nonaccrual	0	0
Current Loans	102	102
Loans and Leases Receivable, Gross	104	109
Financing Receivables 30 To 89 Days Past Due | Thousand
Past Due Loans	172	190
Financing Receivables 30 To 89 Days Past Due | Commercial And Industrial
Past Due Loans	15	0
Financing Receivables 30 To 89 Days Past Due | Commercial And Industrial | Commercial
Past Due Loans	15	0
Financing Receivables 30 To 89 Days Past Due | Commercial And Industrial | :S B A Loans
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Commercial And Industrial | Asset Based
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Commercial Real Estate Portfolio Segment
Past Due Loans	42	50
Financing Receivables 30 To 89 Days Past Due | Commercial Real Estate Portfolio Segment | :S B A Loans
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Commercial Real Estate Portfolio Segment | Commercial Mortgages
Past Due Loans	42	50
Financing Receivables 30 To 89 Days Past Due | Commercial Real Estate Portfolio Segment | Construction
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Commercial Real Estate Portfolio Segment | Religious Organizations
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Consumer Real Estate
Past Due Loans	26	102
Financing Receivables 30 To 89 Days Past Due | Consumer Real Estate | Home Equity Line of Credit
Past Due Loans	0	0
Financing Receivables 30 To 89 Days Past Due | Consumer Real Estate | Home Equity Loans
Past Due Loans	0	38
Financing Receivables 30 To 89 Days Past Due | Consumer Real Estate | Family Residential Mortgage
Past Due Loans	26	64
Financing Receivables 30 To 89 Days Past Due | Consumer And Other Loans
Past Due Loans	89	38
Financing Receivables 30 To 89 Days Past Due | Consumer And Other Loans | Student Loans
Past Due Loans	89	32
Financing Receivables 30 To 89 Days Past Due | Consumer And Other Loans | Other 1
Past Due Loans	0	6
Financial Asset, Equal to or Greater than 90 Days Past Due | Thousand
Past Due Loans	194	387
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial And Industrial
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial And Industrial | Commercial
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial And Industrial | :S B A Loans
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial And Industrial | Asset Based
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate Portfolio Segment
Past Due Loans	0	208
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate Portfolio Segment | :S B A Loans
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate Portfolio Segment | Commercial Mortgages
Past Due Loans	0	208
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate Portfolio Segment | Construction
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Commercial Real Estate Portfolio Segment | Religious Organizations
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Real Estate
Past Due Loans	123	123
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Real Estate | Home Equity Line of Credit
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Real Estate | Home Equity Loans
Past Due Loans	123	123
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer Real Estate | Family Residential Mortgage
Past Due Loans	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer And Other Loans
Past Due Loans	71	56
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer And Other Loans | Student Loans
Past Due Loans	69	55
Financial Asset, Equal to or Greater than 90 Days Past Due | Consumer And Other Loans | Other 1
Past Due Loans	$ 2	$ 1