Divestiture (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Jan. 31, 2016
Disposal Group, Not Discontinued Operation, Disposal Disclosures [Abstract]
Date of divestiture			Jan. 31, 2016
Total selling price					$ 5,774
Loss on Sale of Business	$ 0	$ 87	$ 0	$ 149
Relative size of the disposal group compared to the total company, in terms of revenue			2.00%