Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 43	$ 42
Useful life of purchased customer accounts	13 years
Customer lists
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 43	$ 42
Useful life of purchased customer accounts	13 years 4 months