Deferred Revenue

9 Months Ended

Sep. 30, 2016

Revenue Recognition [Abstract]

Deferred Revenue

Deferred Revenue — Deferred revenue at September 30, 2016 was $30.2 million for the current portion and $0.7 million for the non-current portion. Deferred revenue at December 31, 2015 was $27.0 million for the current portion and $0.7 million for the non-current portion. Our deferred revenue balance represents the contractual obligation for maintenance, software license, professional services and wireless services for which the revenue recognition criteria has not yet been met. We will recognize revenue when the service or software license is provided or the delivery otherwise meets our revenue recognition criteria.