General (Details 6) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Deferred Revenue
Total	$ 2,662	$ 1,470
Acquisition and Integration
Deferred Revenue
Legal, accounting and due diligence fees	4	278
Severance	483	1,179
Strategic alternatives	785
MediaMind preacquisition liability	720
Proxy contest	446
Integration costs	224	13
Total	$ 2,662	$ 1,470

The charge against earnings in the period for known and estimated costs of termination benefits provided to current employees that are involuntarily terminated under a benefit arrangement associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination or a discontinued operation as defined by generally accepted accounting principles and costs associated with one-time termination benefits.

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+ Details