Premises and Equipment (Summary of Premises and Equipment) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 778		$ 760
Less accumulated depreciation and amortization	(546)		(544)
Premises and equipment, net	232		216
Depreciation and amortization expense	39	$ 30
Furniture And Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	521		503
Computer System [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	214		214
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total premises and equipment	$ 43		$ 43