Business Acquisition (Details) - USD ($) $ in Thousands	May. 05, 2015	Jun. 30, 2015	Dec. 31, 2014
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill		$ 7,786	$ 2,206
Deferred income tax liabilities, net		$ (1,152)	$ (1,471)
MediaSolv Solutions Corporation
Business Acquisition [Line Items]
Consideration transferred	$ 8,792
Payments to acquire businesses, net	7,800
Contingent liability	1,000
Additional earn-out provisions and compensation adjustments	$ 4,000
Intangible assets, weighted average useful life (in years)	6 years 6 months
Acquisition transaction costs	$ 200
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable and other current assets	591
Inventory	35
Property and equipment	54
Intangible assets	4,145
Goodwill	5,580
Accounts payable and accrued liabilities	(403)
Deferred income tax liabilities, net	(1,057)
Deferred revenue	$ (153)