Acquisitions (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)
Business Combinations [Line Items]
Purchase price paid	$ 2,700
Goodwill Acquired During Period	500
Non Significant Business [Member]
Business Combinations [Line Items]
Purchase price paid	2,700
Goodwill Acquired During Period	$ 500