4. Loans and Allowance For Loan Losses: Schedule of Age Analysis of Allowance for Loan Losses (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Beginning balance	$ 418,000	$ 735,000
Provision for loan losses	(69,000)	(68,000)
Charge-offs	(68,000)	(279,000)
Recoveries	19,000	30,000
Net charge-offs	(49,000)	(249,000)
Ending balance	300,000	418,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	54,000	56,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	246,000	362,000
Period-end amount allocated to: Total	300,428	418,013
Loans, ending balance: Loans individually evaluated for impairment	2,083,000	2,515,000
Loans, ending balance: Loans collectively evaluated for impairment	24,752,000	31,004,000
Loans and Leases Receivable, Net of Deferred Income	26,835,035	33,519,042
Commercial And Industrial
Beginning balance	151,000	403,000
Provision for loan losses	(87,000)	3,000
Charge-offs	0	(259,000)
Recoveries	4,000	4,000
Net charge-offs	4,000	(255,000)
Ending balance	68,000	151,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	9,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	68,000	167,000
Period-end amount allocated to: Total	68,000	176,000
Loans, ending balance: Loans individually evaluated for impairment	352,000	439,000
Loans, ending balance: Loans collectively evaluated for impairment	1,797,000	2,623,000
Loans and Leases Receivable, Net of Deferred Income	2,149,000	3,062,000
Commercial Real Estate Portfolio Segment
Beginning balance	250,000	300,000
Provision for loan losses	(30,000)	(47,000)
Charge-offs	(41,000)	(3,000)
Recoveries	0
Net charge-offs	(41,000)	(3,000)
Ending balance	179,000	250,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	54,000	47,000
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	125,000	164,000
Period-end amount allocated to: Total	179,000	211,000
Loans, ending balance: Loans individually evaluated for impairment	1,731,000	2,076,000
Loans, ending balance: Loans collectively evaluated for impairment	19,757,000	24,338,000
Loans and Leases Receivable, Net of Deferred Income	21,488,000	26,414,000
Consumer Real Estate
Beginning balance	8,000	20,000
Provision for loan losses	15,000	(18,000)
Charge-offs	(22,000)	0
Recoveries	9,000	6,000
Net charge-offs	(13,000)	6,000
Ending balance	10,000	8,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	10,000	22,000
Period-end amount allocated to: Total	10,000	22,000
Loans, ending balance: Loans individually evaluated for impairment	0	0
Loans, ending balance: Loans collectively evaluated for impairment	2,232,000	2,841,000
Loans and Leases Receivable, Net of Deferred Income	2,232,000	2,841,000
Consumer And Other Loans
Beginning balance	9,000	12,000
Provision for loan losses	1,000	(6,000)
Charge-offs	(5,000)	(17,000)
Recoveries	6,000	20,000
Net charge-offs	1,000	3,000
Ending balance	11,000	9,000
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	11,000	9,000
Period-end amount allocated to: Total	11,000	9,000
Loans, ending balance: Loans individually evaluated for impairment	0	0
Loans, ending balance: Loans collectively evaluated for impairment	966,000	1,202,000
Loans and Leases Receivable, Net of Deferred Income	966,000	1,202,000
Unallocated
Beginning balance	0	0
Provision for loan losses	(101,000)	0
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Ending balance	(101,000)	0
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Period-end amount allocated to: Total	0	0
Loans, ending balance: Loans individually evaluated for impairment	0	0
Loans and Leases Receivable, Net of Deferred Income	0	0
Unallocated1
Beginning balance	0	0
Provision for loan losses	32,000	0
Charge-offs	0	0
Recoveries	0	0
Net charge-offs	0	0
Ending balance	32,000	0
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0	0
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	32,000	0
Period-end amount allocated to: Total	32,000	0
Loans, ending balance: Loans individually evaluated for impairment	0	0
Loans, ending balance: Loans collectively evaluated for impairment	0	0
Loans and Leases Receivable, Net of Deferred Income	$ 0	$ 0