Intangible Assets and Goodwill (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Finite Lived Intangible Assets [Line Items]
Amortization expense, intangible assets	$ 176,000	$ 200,000
Goodwill, additions	0	0
Goodwill, Impairment Loss	$ 0	$ 0
Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived intangible asset, useful life	3 years
Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived intangible asset, useful life	7 years