6. Loans and Allowance For Loan Losses: Schedule of Age Analysis of Allowance for Loan Losses (Details) - USD ($)	3 Months Ended			9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Beginning balance	$ 355,000	$ 469,000	$ 596,000	$ 418,000	$ 735,000
Provision (credit) for loan losses	45,000		83,000	50,000	17,000
Charge-offs	(1,000)		(214,000)	(67,000)	(274,000)
Recoveries	8,000		4,000	16,000	25,000
Net (charge-offs) recoveries	7,000		210,000	51,000	249,000
Ending balance	317,000	469,000	469,000	317,000	469,000
Period-end amount allocated to: Loans individually evaluated for impairment	71,000			71,000		$ 91,000
Period-end amount allocated to: Loans collectively evaluated for impairment	246,000			246,000		327,000
Period-end amount allocated to: Total	(316,979)			(316,979)		(418,013)
Loans, ending balance: Loans individually evaluated for impairment	2,175,000			2,175,000		2,515,000
Loans, ending balance: Loans collectively evaluated for impairment	26,130,000			26,130,000		31,004,000
Loans, ending balance: Total	28,305,134			28,305,134		33,519,042
Commercial And Industrial
Beginning balance	87,000	320,000		151,000	403,000
Provision (credit) for loan losses	41,000	100,000		25,000	63,000
Charge-offs	0	(212,000)		0	(259,000)
Recoveries	1,000	2,000		3,000	3,000
Net (charge-offs) recoveries	1,000	210,000		3,000	256,000
Ending balance	129,000	210,000	320,000	129,000	210,000
Period-end amount allocated to: Loans individually evaluated for impairment	0			0		0
Period-end amount allocated to: Loans collectively evaluated for impairment	129,000			129,000		151,000
Period-end amount allocated to: Total	(129,000)			(129,000)		(151,000)
Loans, ending balance: Loans individually evaluated for impairment	437,000			437,000		439,000
Loans, ending balance: Loans collectively evaluated for impairment	1,855,000			1,855,000		2,623,000
Loans, ending balance: Total	2,292,000			2,292,000		3,062,000
Commercial Real Estate Portfolio Segment
Beginning balance	245,000	236,000		250,000	300,000
Provision (credit) for loan losses	75,000	9,000		39,000	73,000
Charge-offs	(1,000)	0		(42,000)	0
Recoveries	0	0		0	0
Net (charge-offs) recoveries	1,000	0		42,000	0
Ending balance	169,000	227,000	236,000	169,000	227,000
Period-end amount allocated to: Loans individually evaluated for impairment	71,000			71,000		91,000
Period-end amount allocated to: Loans collectively evaluated for impairment	98,000			98,000		159,000
Period-end amount allocated to: Total	(169,000)			(169,000)		(250,000)
Loans, ending balance: Loans individually evaluated for impairment	1,738,000			1,738,000		2,076,000
Loans, ending balance: Loans collectively evaluated for impairment	20,704,000			20,704,000		24,338,000
Loans, ending balance: Total	22,442,000			22,442,000		26,414,000
Consumer Real Estate
Beginning balance	13,000	23,000		8,000	20,000
Provision (credit) for loan losses	11,000	4,000		14,000	4,000
Charge-offs	0	0		(22,000)	0
Recoveries	6,000	1,000		8,000	4,000
Net (charge-offs) recoveries	6,000	1,000		14,000	4,000
Ending balance	8,000	20,000	23,000	8,000	20,000
Period-end amount allocated to: Loans individually evaluated for impairment	0			0		0
Period-end amount allocated to: Loans collectively evaluated for impairment	8,000			8,000		8,000
Period-end amount allocated to: Total	(8,000)			(8,000)		(8,000)
Loans, ending balance: Loans individually evaluated for impairment	0			0		0
Loans, ending balance: Loans collectively evaluated for impairment	2,517,000			2,517,000		2,841,000
Loans, ending balance: Total	2,517,000			2,517,000		2,841,000
Consumer And Other Loans
Beginning balance	10,000	17,000		9,000	12,000
Provision (credit) for loan losses	0	4,000		0	3,000
Charge-offs	0	(2,000)		(3,000)	(15,000)
Recoveries	1,000	1,000		5,000	18,000
Net (charge-offs) recoveries	1,000	1,000		2,000	3,000
Ending balance	11,000	$ 12,000	$ 17,000	11,000	$ 12,000
Period-end amount allocated to: Loans individually evaluated for impairment	0			0		0
Period-end amount allocated to: Loans collectively evaluated for impairment	11,000			11,000		9,000
Period-end amount allocated to: Total	(11,000)			(11,000)		(9,000)
Loans, ending balance: Loans individually evaluated for impairment	0			0		0
Loans, ending balance: Loans collectively evaluated for impairment	1,054,000			1,054,000		1,202,000
Loans, ending balance: Total	$ 1,054,000			$ 1,054,000		$ 1,202,000