Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2018	Mar. 31, 2018	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization		$ 711	$ 1,431
BotCentral [Member]
Business Acquisition [Line Items]
Equity consideration in acquisition	$ 1,000
Acquisition costs	200
Total consideration transferred	$ 1,200