5. Bank Premises and Equipment: Schedule of Major Classes of Bank Premises and Equipment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment, Gross	$ 2,085,000	$ 1,964,000
Less accumulated depreciation	(1,592,000)	(1,415,000)
Bank premises and equipment, net	492,730	549,466
Thousand
Bank premises and equipment, net	493,000	549,000
Leaseholds and Leasehold Improvements
Property, Plant and Equipment, Gross	$ 788,000	785,000
Leaseholds and Leasehold Improvements | Minimum
Estimated Useful Life	10 years
Leaseholds and Leasehold Improvements | Maximum
Estimated Useful Life	15 years
Furniture and Fixtures
Property, Plant and Equipment, Gross	$ 1,297,000	$ 1,179,000
Furniture and Fixtures | Minimum
Estimated Useful Life	3 years
Furniture and Fixtures | Maximum
Estimated Useful Life	7 years